diff options
Diffstat (limited to 'arch/powerpc/platforms')
112 files changed, 2659 insertions, 1359 deletions
diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index a9260e21451..14e027f5be6 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -14,6 +14,15 @@ # help # This option enables support for the CPCI405 board. +config ACADIA + bool "Acadia" + depends on 40x + default n + select PPC40x_SIMPLE + select 405EZ + help + This option enables support for the AMCC 405EZ Acadia evaluation board. + config EP405 bool "EP405/EP405PC" depends on 40x @@ -23,6 +32,14 @@ config EP405 help This option enables support for the EP405/EP405PC boards. +config HCU4 + bool "Hcu4" + depends on 40x + default n + select 405GPR + help + This option enables support for the Nestal Maschinen HCU4 board. + config KILAUEA bool "Kilauea" depends on 40x @@ -93,6 +110,13 @@ config XILINX_VIRTEX_GENERIC_BOARD Most Virtex designs should use this unless it needs to do some special configuration at board probe time. +config PPC40x_SIMPLE + bool "Simple PowerPC 40x board support" + depends on 40x + default n + help + This option enables the simple PowerPC 40x platform support. + # 40x specific CPU modules, selected based on the board above. config NP405H bool @@ -118,6 +142,12 @@ config 405EX select IBM_NEW_EMAC_EMAC4 select IBM_NEW_EMAC_RGMII +config 405EZ + bool + select IBM_NEW_EMAC_NO_FLOW_CTRL + select IBM_NEW_EMAC_MAL_CLR_ICINTSTAT + select IBM_NEW_EMAC_MAL_COMMON_ERR + config 405GPR bool @@ -139,6 +169,14 @@ config STB03xxx select IBM405_ERR77 select IBM405_ERR51 +config PPC4xx_GPIO + bool "PPC4xx GPIO support" + depends on 40x + select ARCH_REQUIRE_GPIOLIB + select GENERIC_GPIO + help + Enable gpiolib support for ppc40x based boards + # 40x errata/workaround config symbols, selected by the CPU models above # All 405-based cores up until the 405GPR and 405EP have this errata. diff --git a/arch/powerpc/platforms/40x/Makefile b/arch/powerpc/platforms/40x/Makefile index 5533a5c8ce4..9bab76a652a 100644 --- a/arch/powerpc/platforms/40x/Makefile +++ b/arch/powerpc/platforms/40x/Makefile @@ -1,5 +1,7 @@ obj-$(CONFIG_KILAUEA) += kilauea.o +obj-$(CONFIG_HCU4) += hcu4.o obj-$(CONFIG_MAKALU) += makalu.o obj-$(CONFIG_WALNUT) += walnut.o obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD) += virtex.o obj-$(CONFIG_EP405) += ep405.o +obj-$(CONFIG_PPC40x_SIMPLE) += ppc40x_simple.o diff --git a/arch/powerpc/platforms/40x/ep405.c b/arch/powerpc/platforms/40x/ep405.c index ae2e7f67c18..4058fd1e7fc 100644 --- a/arch/powerpc/platforms/40x/ep405.c +++ b/arch/powerpc/platforms/40x/ep405.c @@ -100,7 +100,7 @@ static void __init ep405_setup_arch(void) /* Find & init the BCSR CPLD */ ep405_init_bcsr(); - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); } static int __init ep405_probe(void) diff --git a/arch/powerpc/platforms/40x/hcu4.c b/arch/powerpc/platforms/40x/hcu4.c new file mode 100644 index 00000000000..60b2afecab7 --- /dev/null +++ b/arch/powerpc/platforms/40x/hcu4.c @@ -0,0 +1,61 @@ +/* + * Architecture- / platform-specific boot-time initialization code for + * IBM PowerPC 4xx based boards. Adapted from original + * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek + * <dan@net4x.com>. + * + * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> + * + * Rewritten and ported to the merged powerpc tree: + * Copyright 2007 IBM Corporation + * Josh Boyer <jwboyer@linux.vnet.ibm.com> + * + * 2002 (c) MontaVista, Software, Inc. This file is licensed under + * the terms of the GNU General Public License version 2. This program + * is licensed "as is" without any warranty of any kind, whether express + * or implied. + */ + +#include <linux/init.h> +#include <linux/of_platform.h> + +#include <asm/machdep.h> +#include <asm/prom.h> +#include <asm/udbg.h> +#include <asm/time.h> +#include <asm/uic.h> +#include <asm/ppc4xx.h> + +static __initdata struct of_device_id hcu4_of_bus[] = { + { .compatible = "ibm,plb3", }, + { .compatible = "ibm,opb", }, + { .compatible = "ibm,ebc", }, + {}, +}; + +static int __init hcu4_device_probe(void) +{ + of_platform_bus_probe(NULL, hcu4_of_bus, NULL); + return 0; +} +machine_device_initcall(hcu4, hcu4_device_probe); + +static int __init hcu4_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "netstal,hcu4")) + return 0; + + return 1; +} + +define_machine(hcu4) { + .name = "HCU4", + .probe = hcu4_probe, + .progress = udbg_progress, + .init_IRQ = uic_init_tree, + .get_irq = uic_get_irq, + .restart = ppc4xx_reset_system, + .calibrate_decr = generic_calibrate_decr, +}; diff --git a/arch/powerpc/platforms/40x/kilauea.c b/arch/powerpc/platforms/40x/kilauea.c index 1dd24ffc0dc..fd7d934dac8 100644 --- a/arch/powerpc/platforms/40x/kilauea.c +++ b/arch/powerpc/platforms/40x/kilauea.c @@ -44,7 +44,7 @@ static int __init kilauea_probe(void) if (!of_flat_dt_is_compatible(root, "amcc,kilauea")) return 0; - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); return 1; } diff --git a/arch/powerpc/platforms/40x/ppc40x_simple.c b/arch/powerpc/platforms/40x/ppc40x_simple.c new file mode 100644 index 00000000000..f40ac9b8f99 --- /dev/null +++ b/arch/powerpc/platforms/40x/ppc40x_simple.c @@ -0,0 +1,80 @@ +/* + * Generic PowerPC 40x platform support + * + * Copyright 2008 IBM Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * This implements simple platform support for PowerPC 44x chips. This is + * mostly used for eval boards or other simple and "generic" 44x boards. If + * your board has custom functions or hardware, then you will likely want to + * implement your own board.c file to accommodate it. + */ + +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <asm/ppc4xx.h> +#include <asm/prom.h> +#include <asm/time.h> +#include <asm/udbg.h> +#include <asm/uic.h> + +#include <linux/init.h> +#include <linux/of_platform.h> + +static __initdata struct of_device_id ppc40x_of_bus[] = { + { .compatible = "ibm,plb3", }, + { .compatible = "ibm,plb4", }, + { .compatible = "ibm,opb", }, + { .compatible = "ibm,ebc", }, + { .compatible = "simple-bus", }, + {}, +}; + +static int __init ppc40x_device_probe(void) +{ + of_platform_bus_probe(NULL, ppc40x_of_bus, NULL); + + return 0; +} +machine_device_initcall(ppc40x_simple, ppc40x_device_probe); + +/* This is the list of boards that can be supported by this simple + * platform code. This does _not_ mean the boards are compatible, + * as they most certainly are not from a device tree perspective. + * However, their differences are handled by the device tree and the + * drivers and therefore they don't need custom board support files. + * + * Again, if your board needs to do things differently then create a + * board.c file for it rather than adding it to this list. + */ +static char *board[] __initdata = { + "amcc,acadia" +}; + +static int __init ppc40x_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + int i = 0; + + for (i = 0; i < ARRAY_SIZE(board); i++) { + if (of_flat_dt_is_compatible(root, board[i])) { + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); + return 1; + } + } + + return 0; +} + +define_machine(ppc40x_simple) { + .name = "PowerPC 40x Platform", + .probe = ppc40x_probe, + .progress = udbg_progress, + .init_IRQ = uic_init_tree, + .get_irq = uic_get_irq, + .restart = ppc4xx_reset_system, + .calibrate_decr = generic_calibrate_decr, +}; diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index 249ba01c667..3496bc05058 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -2,6 +2,7 @@ config BAMBOO bool "Bamboo" depends on 44x default n + select PPC44x_SIMPLE select 440EP select PCI help @@ -30,6 +31,7 @@ config SEQUOIA bool "Sequoia" depends on 44x default n + select PPC44x_SIMPLE select 440EPX help This option enables support for the AMCC PPC440EPX evaluation board. @@ -38,6 +40,7 @@ config TAISHAN bool "Taishan" depends on 44x default n + select PPC44x_SIMPLE select 440GX select PCI help @@ -48,6 +51,7 @@ config KATMAI bool "Katmai" depends on 44x default n + select PPC44x_SIMPLE select 440SPe select PCI select PPC4xx_PCI_EXPRESS @@ -58,6 +62,7 @@ config RAINIER bool "Rainier" depends on 44x default n + select PPC44x_SIMPLE select 440GRX select PCI help @@ -76,20 +81,48 @@ config WARP See http://www.pikatechnologies.com/ and follow the "PIKA for Computer Telephony Developers" link for more information. +config ARCHES + bool "Arches" + depends on 44x + default n + select PPC44x_SIMPLE + select 460EX # Odd since it uses 460GT but the effects are the same + select PCI + select PPC4xx_PCI_EXPRESS + help + This option enables support for the AMCC Dual PPC460GT evaluation board. + config CANYONLANDS bool "Canyonlands" depends on 44x default n + select PPC44x_SIMPLE select 460EX select PCI select PPC4xx_PCI_EXPRESS + select IBM_NEW_EMAC_RGMII + select IBM_NEW_EMAC_ZMII help This option enables support for the AMCC PPC460EX evaluation board. +config GLACIER + bool "Glacier" + depends on 44x + default n + select PPC44x_SIMPLE + select 460EX # Odd since it uses 460GT but the effects are the same + select PCI + select PPC4xx_PCI_EXPRESS + select IBM_NEW_EMAC_RGMII + select IBM_NEW_EMAC_ZMII + help + This option enables support for the AMCC PPC460GT evaluation board. + config YOSEMITE bool "Yosemite" depends on 44x default n + select PPC44x_SIMPLE select 440EP select PCI help @@ -127,6 +160,21 @@ config XILINX_VIRTEX440_GENERIC_BOARD Most Virtex 5 designs should use this unless it needs to do some special configuration at board probe time. +config PPC44x_SIMPLE + bool "Simple PowerPC 44x board support" + depends on 44x + default n + help + This option enables the simple PowerPC 44x platform support. + +config PPC4xx_GPIO + bool "PPC4xx GPIO support" + depends on 44x + select ARCH_REQUIRE_GPIOLIB + select GENERIC_GPIO + help + Enable gpiolib support for ppc440 based boards + # 44x specific CPU modules, selected based on the board above. config 440EP bool @@ -170,8 +218,6 @@ config 460EX bool select PPC_FPU select IBM_NEW_EMAC_EMAC4 - select IBM_NEW_EMAC_RGMII - select IBM_NEW_EMAC_ZMII select IBM_NEW_EMAC_TAH # 44x errata/workaround config symbols, selected by the CPU models above diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile index 8d0b1a192d6..698133180ae 100644 --- a/arch/powerpc/platforms/44x/Makefile +++ b/arch/powerpc/platforms/44x/Makefile @@ -1,13 +1,7 @@ obj-$(CONFIG_44x) := misc_44x.o idle.o +obj-$(CONFIG_PPC44x_SIMPLE) += ppc44x_simple.o obj-$(CONFIG_EBONY) += ebony.o -obj-$(CONFIG_TAISHAN) += taishan.o -obj-$(CONFIG_BAMBOO) += bamboo.o -obj-$(CONFIG_YOSEMITE) += bamboo.o obj-$(CONFIG_SAM440EP) += sam440ep.o -obj-$(CONFIG_SEQUOIA) += sequoia.o -obj-$(CONFIG_KATMAI) += katmai.o -obj-$(CONFIG_RAINIER) += rainier.o obj-$(CONFIG_WARP) += warp.o obj-$(CONFIG_WARP) += warp-nand.o -obj-$(CONFIG_CANYONLANDS) += canyonlands.o obj-$(CONFIG_XILINX_VIRTEX_5_FXT) += virtex.o diff --git a/arch/powerpc/platforms/44x/bamboo.c b/arch/powerpc/platforms/44x/bamboo.c deleted file mode 100644 index cef169e9515..00000000000 --- a/arch/powerpc/platforms/44x/bamboo.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Bamboo board specific routines - * - * Wade Farnsworth <wfarnsworth@mvista.com> - * Copyright 2004 MontaVista Software Inc. - * - * Rewritten and ported to the merged powerpc tree: - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * Copyright 2007 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id bamboo_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init bamboo_device_probe(void) -{ - of_platform_bus_probe(NULL, bamboo_of_bus, NULL); - - return 0; -} -machine_device_initcall(bamboo, bamboo_device_probe); - -static int __init bamboo_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,bamboo")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(bamboo) { - .name = "Bamboo", - .probe = bamboo_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/44x/canyonlands.c b/arch/powerpc/platforms/44x/canyonlands.c deleted file mode 100644 index 3949289f51d..00000000000 --- a/arch/powerpc/platforms/44x/canyonlands.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Canyonlands board specific routines - * - * Copyright 2008 DENX Software Engineering, Stefan Roese <sr@denx.de> - * - * Based on the Katmai code by - * Benjamin Herrenschmidt <benh@kernel.crashing.org> - * Copyright 2007 IBM Corp. - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * Copyright 2007 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id canyonlands_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init canyonlands_device_probe(void) -{ - of_platform_bus_probe(NULL, canyonlands_of_bus, NULL); - - return 0; -} -machine_device_initcall(canyonlands, canyonlands_device_probe); - -static int __init canyonlands_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,canyonlands")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(canyonlands) { - .name = "Canyonlands", - .probe = canyonlands_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c index a0e8fe4662f..88b9117fa69 100644 --- a/arch/powerpc/platforms/44x/ebony.c +++ b/arch/powerpc/platforms/44x/ebony.c @@ -54,7 +54,7 @@ static int __init ebony_probe(void) if (!of_flat_dt_is_compatible(root, "ibm,ebony")) return 0; - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); return 1; } diff --git a/arch/powerpc/platforms/44x/katmai.c b/arch/powerpc/platforms/44x/katmai.c deleted file mode 100644 index 44f4b3a00ce..00000000000 --- a/arch/powerpc/platforms/44x/katmai.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Katmai board specific routines - * - * Benjamin Herrenschmidt <benh@kernel.crashing.org> - * Copyright 2007 IBM Corp. - * - * Based on the Bamboo code by - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * Copyright 2007 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id katmai_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init katmai_device_probe(void) -{ - of_platform_bus_probe(NULL, katmai_of_bus, NULL); - - return 0; -} -machine_device_initcall(katmai, katmai_device_probe); - -static int __init katmai_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,katmai")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(katmai) { - .name = "Katmai", - .probe = katmai_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/44x/ppc44x_simple.c b/arch/powerpc/platforms/44x/ppc44x_simple.c new file mode 100644 index 00000000000..76fdc51dac8 --- /dev/null +++ b/arch/powerpc/platforms/44x/ppc44x_simple.c @@ -0,0 +1,88 @@ +/* + * Generic PowerPC 44x platform support + * + * Copyright 2008 IBM Corporation + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; version 2 of the License. + * + * This implements simple platform support for PowerPC 44x chips. This is + * mostly used for eval boards or other simple and "generic" 44x boards. If + * your board has custom functions or hardware, then you will likely want to + * implement your own board.c file to accommodate it. + */ + +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <asm/ppc4xx.h> +#include <asm/prom.h> +#include <asm/time.h> +#include <asm/udbg.h> +#include <asm/uic.h> + +#include <linux/init.h> +#include <linux/of_platform.h> + +static __initdata struct of_device_id ppc44x_of_bus[] = { + { .compatible = "ibm,plb4", }, + { .compatible = "ibm,opb", }, + { .compatible = "ibm,ebc", }, + { .compatible = "simple-bus", }, + {}, +}; + +static int __init ppc44x_device_probe(void) +{ + of_platform_bus_probe(NULL, ppc44x_of_bus, NULL); + + return 0; +} +machine_device_initcall(ppc44x_simple, ppc44x_device_probe); + +/* This is the list of boards that can be supported by this simple + * platform code. This does _not_ mean the boards are compatible, + * as they most certainly are not from a device tree perspective. + * However, their differences are handled by the device tree and the + * drivers and therefore they don't need custom board support files. + * + * Again, if your board needs to do things differently then create a + * board.c file for it rather than adding it to this list. + */ +static char *board[] __initdata = { + "amcc,arches", + "amcc,bamboo", + "amcc,canyonlands", + "amcc,glacier", + "ibm,ebony", + "amcc,katmai", + "amcc,rainier", + "amcc,sequoia", + "amcc,taishan", + "amcc,yosemite" +}; + +static int __init ppc44x_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + int i = 0; + + for (i = 0; i < ARRAY_SIZE(board); i++) { + if (of_flat_dt_is_compatible(root, board[i])) { + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); + return 1; + } + } + + return 0; +} + +define_machine(ppc44x_simple) { + .name = "PowerPC 44x Platform", + .probe = ppc44x_probe, + .progress = udbg_progress, + .init_IRQ = uic_init_tree, + .get_irq = uic_get_irq, + .restart = ppc4xx_reset_system, + .calibrate_decr = generic_calibrate_decr, +}; diff --git a/arch/powerpc/platforms/44x/rainier.c b/arch/powerpc/platforms/44x/rainier.c deleted file mode 100644 index 4f1ff84c4b6..00000000000 --- a/arch/powerpc/platforms/44x/rainier.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Rainier board specific routines - * - * Valentine Barshak <vbarshak@ru.mvista.com> - * Copyright 2007 MontaVista Software Inc. - * - * Based on the Bamboo code by - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * Copyright 2007 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id rainier_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init rainier_device_probe(void) -{ - of_platform_bus_probe(NULL, rainier_of_bus, NULL); - - return 0; -} -machine_device_initcall(rainier, rainier_device_probe); - -static int __init rainier_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,rainier")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(rainier) { - .name = "Rainier", - .probe = rainier_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/44x/sam440ep.c b/arch/powerpc/platforms/44x/sam440ep.c index 47f10e64773..a78e8eb6da4 100644 --- a/arch/powerpc/platforms/44x/sam440ep.c +++ b/arch/powerpc/platforms/44x/sam440ep.c @@ -51,7 +51,7 @@ static int __init sam440ep_probe(void) if (!of_flat_dt_is_compatible(root, "acube,sam440ep")) return 0; - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; + ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC); return 1; } diff --git a/arch/powerpc/platforms/44x/sequoia.c b/arch/powerpc/platforms/44x/sequoia.c deleted file mode 100644 index 49eb73daacd..00000000000 --- a/arch/powerpc/platforms/44x/sequoia.c +++ /dev/null @@ -1,63 +0,0 @@ -/* - * Sequoia board specific routines - * - * Valentine Barshak <vbarshak@ru.mvista.com> - * Copyright 2007 MontaVista Software Inc. - * - * Based on the Bamboo code by - * Josh Boyer <jwboyer@linux.vnet.ibm.com> - * Copyright 2007 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> - -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id sequoia_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init sequoia_device_probe(void) -{ - of_platform_bus_probe(NULL, sequoia_of_bus, NULL); - - return 0; -} -machine_device_initcall(sequoia, sequoia_device_probe); - -static int __init sequoia_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,sequoia")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(sequoia) { - .name = "Sequoia", - .probe = sequoia_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/44x/taishan.c b/arch/powerpc/platforms/44x/taishan.c deleted file mode 100644 index 49c78b2098b..00000000000 --- a/arch/powerpc/platforms/44x/taishan.c +++ /dev/null @@ -1,72 +0,0 @@ -/* - * Taishan board specific routines based off ebony.c code - * original copyrights below - * - * Matt Porter <mporter@kernel.crashing.org> - * Copyright 2002-2005 MontaVista Software Inc. - * - * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net> - * Copyright (c) 2003-2005 Zultys Technologies - * - * Rewritten and ported to the merged powerpc tree: - * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation. - * - * Modified from ebony.c for taishan: - * Copyright 2007 Hugh Blemings <hugh@au.ibm.com>, IBM Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <linux/init.h> -#include <linux/of_platform.h> - -#include <asm/machdep.h> -#include <asm/prom.h> -#include <asm/udbg.h> -#include <asm/time.h> -#include <asm/uic.h> -#include <asm/pci-bridge.h> -#include <asm/ppc4xx.h> - -static __initdata struct of_device_id taishan_of_bus[] = { - { .compatible = "ibm,plb4", }, - { .compatible = "ibm,opb", }, - { .compatible = "ibm,ebc", }, - {}, -}; - -static int __init taishan_device_probe(void) -{ - of_platform_bus_probe(NULL, taishan_of_bus, NULL); - - return 0; -} -machine_device_initcall(taishan, taishan_device_probe); - -/* - * Called very early, MMU is off, device-tree isn't unflattened - */ -static int __init taishan_probe(void) -{ - unsigned long root = of_get_flat_dt_root(); - - if (!of_flat_dt_is_compatible(root, "amcc,taishan")) - return 0; - - ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC; - - return 1; -} - -define_machine(taishan) { - .name = "Taishan", - .probe = taishan_probe, - .progress = udbg_progress, - .init_IRQ = uic_init_tree, - .get_irq = uic_get_irq, - .restart = ppc4xx_reset_system, - .calibrate_decr = generic_calibrate_decr, -}; diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig index c62f893ede1..326852c78b8 100644 --- a/arch/powerpc/platforms/512x/Kconfig +++ b/arch/powerpc/platforms/512x/Kconfig @@ -3,6 +3,8 @@ config PPC_MPC512x select FSL_SOC select IPIC select PPC_CLOCK + select PPC_PCI_CHOICE + select FSL_PCI if PCI config PPC_MPC5121 bool diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c index 5ebf6939a69..441abc48885 100644 --- a/arch/powerpc/platforms/512x/mpc5121_ads.c +++ b/arch/powerpc/platforms/512x/mpc5121_ads.c @@ -22,16 +22,26 @@ #include <asm/prom.h> #include <asm/time.h> +#include <sysdev/fsl_pci.h> + #include "mpc512x.h" #include "mpc5121_ads.h" static void __init mpc5121_ads_setup_arch(void) { +#ifdef CONFIG_PCI + struct device_node *np; +#endif printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n"); /* * cpld regs are needed early */ mpc5121_ads_cpld_map(); + +#ifdef CONFIG_PCI + for_each_compatible_node(np, "pci", "fsl,mpc5121-pci") + mpc83xx_add_bridge(np); +#endif } static void __init mpc5121_ads_init_IRQ(void) diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c index fe92e65103e..b5c753db125 100644 --- a/arch/powerpc/platforms/52xx/lite5200_pm.c +++ b/arch/powerpc/platforms/52xx/lite5200_pm.c @@ -3,7 +3,6 @@ #include <asm/io.h> #include <asm/time.h> #include <asm/mpc52xx.h> -#include "mpc52xx_pic.h" /* defined in lite5200_sleep.S and only used here */ extern void lite5200_low_power(void __iomem *sram, void __iomem *mbar); diff --git a/arch/powerpc/platforms/52xx/mpc52xx_common.c b/arch/powerpc/platforms/52xx/mpc52xx_common.c index 4d5fd1dbd40..ae7c34f37e1 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_common.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_common.c @@ -90,7 +90,7 @@ mpc5200_setup_xlb_arbiter(void) of_node_put(np); if (!xlb) { printk(KERN_ERR __FILE__ ": " - "Error mapping XLB in mpc52xx_setup_cpu(). " + "Error mapping XLB in mpc52xx_setup_cpu(). " "Expect some abnormal behavior\n"); return; } @@ -99,11 +99,14 @@ mpc5200_setup_xlb_arbiter(void) out_be32(&xlb->master_pri_enable, 0xff); out_be32(&xlb->master_priority, 0x11111111); - /* Disable XLB pipelining + /* + * Disable XLB pipelining * (cfr errate 292. We could do this only just before ATA PIO * transaction and re-enable it afterwards ...) + * Not needed on MPC5200B. */ - out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_PLDIS); + if ((mfspr(SPRN_SVR) & MPC5200_SVR_MASK) == MPC5200_SVR) + out_be32(&xlb->config, in_be32(&xlb->config) | MPC52xx_XLB_CFG_PLDIS); iounmap(xlb); } @@ -216,7 +219,8 @@ mpc52xx_restart(char *cmd) out_be32(&mpc52xx_wdt->count, 0x000000ff); out_be32(&mpc52xx_wdt->mode, 0x00009004); } else - printk("mpc52xx_restart: Can't access wdt. " + printk(KERN_ERR __FILE__ ": " + "mpc52xx_restart: Can't access wdt. " "Restart impossible, system halted.\n"); while (1); diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pci.c b/arch/powerpc/platforms/52xx/mpc52xx_pci.c index 5a382bb15f6..c3f2c21024e 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pci.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pci.c @@ -265,8 +265,11 @@ mpc52xx_pci_setup(struct pci_controller *hose, /* Memory windows */ res = &hose->mem_resources[0]; if (res->flags) { - pr_debug("mem_resource[0] = {.start=%x, .end=%x, .flags=%lx}\n", - res->start, res->end, res->flags); + pr_debug("mem_resource[0] = " + "{.start=%llx, .end=%llx, .flags=%llx}\n", + (unsigned long long)res->start, + (unsigned long long)res->end, + (unsigned long long)res->flags); out_be32(&pci_regs->iw0btar, MPC52xx_PCI_IWBTAR_TRANSLATION(res->start, res->start, res->end - res->start + 1)); @@ -297,9 +300,11 @@ mpc52xx_pci_setup(struct pci_controller *hose, printk(KERN_ERR "%s: Didn't find IO resources\n", __FILE__); return; } - pr_debug(".io_resource={.start=%x,.end=%x,.flags=%lx} " + pr_debug(".io_resource={.start=%llx,.end=%llx,.flags=%llx} " ".io_base_phys=0x%p\n", - res->start, res->end, res->flags, (void*)hose->io_base_phys); + (unsigned long long)res->start, + (unsigned long long)res->end, + (unsigned long long)res->flags, (void*)hose->io_base_phys); out_be32(&pci_regs->iw2btar, MPC52xx_PCI_IWBTAR_TRANSLATION(hose->io_base_phys, res->start, @@ -370,7 +375,7 @@ mpc52xx_add_bridge(struct device_node *node) pr_debug("Adding MPC52xx PCI host bridge %s\n", node->full_name); - ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS; + ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS); if (of_address_to_resource(node, 0, &rsrc) != 0) { printk(KERN_ERR "Can't get %s resources\n", node->full_name); diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c index 8479394e9ab..72865e8e4b5 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c @@ -2,20 +2,100 @@ * * Programmable Interrupt Controller functions for the Freescale MPC52xx. * + * Copyright (C) 2008 Secret Lab Technologies Ltd. * Copyright (C) 2006 bplan GmbH + * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com> + * Copyright (C) 2003 Montavista Software, Inc * * Based on the code from the 2.4 kernel by * Dale Farnsworth <dfarnsworth@mvista.com> and Kent Borg. * - * Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2003 Montavista Software, Inc - * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. * */ +/* + * This is the device driver for the MPC5200 interrupt controller. + * + * hardware overview + * ----------------- + * The MPC5200 interrupt controller groups the all interrupt sources into + * three groups called 'critical', 'main', and 'peripheral'. The critical + * group has 3 irqs, External IRQ0, slice timer 0 irq, and wake from deep + * sleep. Main group include the other 3 external IRQs, slice timer 1, RTC, + * gpios, and the general purpose timers. Peripheral group contains the + * remaining irq sources from all of the on-chip peripherals (PSCs, Ethernet, + * USB, DMA, etc). + * + * virqs + * ----- + * The Linux IRQ subsystem requires that each irq source be assigned a + * system wide unique IRQ number starting at 1 (0 means no irq). Since + * systems can have multiple interrupt controllers, the virtual IRQ (virq) + * infrastructure lets each interrupt controller to define a local set + * of IRQ numbers and the virq infrastructure maps those numbers into + * a unique range of the global IRQ# space. + * + * To define a range of virq numbers for this controller, this driver first + * assigns a number to each of the irq groups (called the level 1 or L1 + * value). Within each group individual irq sources are also assigned a + * number, as defined by the MPC5200 user guide, and refers to it as the + * level 2 or L2 value. The virq number is determined by shifting up the + * L1 value by MPC52xx_IRQ_L1_OFFSET and ORing it with the L2 value. + * + * For example, the TMR0 interrupt is irq 9 in the main group. The + * virq for TMR0 is calculated by ((1 << MPC52xx_IRQ_L1_OFFSET) | 9). + * + * The observant reader will also notice that this driver defines a 4th + * interrupt group called 'bestcomm'. The bestcomm group isn't physically + * part of the MPC5200 interrupt controller, but it is used here to assign + * a separate virq number for each bestcomm task (since any of the 16 + * bestcomm tasks can cause the bestcomm interrupt to be raised). When a + * bestcomm interrupt occurs (peripheral group, irq 0) this driver determines + * which task needs servicing and returns the irq number for that task. This + * allows drivers which use bestcomm to define their own interrupt handlers. + * + * irq_chip structures + * ------------------- + * For actually manipulating IRQs (masking, enabling, clearing, etc) this + * driver defines four separate 'irq_chip' structures, one for the main + * group, one for the peripherals group, one for the bestcomm group and one + * for external interrupts. The irq_chip structures provide the hooks needed + * to manipulate each IRQ source, and since each group is has a separate set + * of registers for controlling the irq, it makes sense to divide up the + * hooks along those lines. + * + * You'll notice that there is not an irq_chip for the critical group and + * you'll also notice that there is an irq_chip defined for external + * interrupts even though there is no external interrupt group. The reason + * for this is that the four external interrupts are all managed with the same + * register even though one of the external IRQs is in the critical group and + * the other three are in the main group. For this reason it makes sense for + * the 4 external irqs to be managed using a separate set of hooks. The + * reason there is no crit irq_chip is that of the 3 irqs in the critical + * group, only external interrupt is actually support at this time by this + * driver and since external interrupt is the only one used, it can just + * be directed to make use of the external irq irq_chip. + * + * device tree bindings + * -------------------- + * The device tree bindings for this controller reflect the two level + * organization of irqs in the device. #interrupt-cells = <3> where the + * first cell is the group number [0..3], the second cell is the irq + * number in the group, and the third cell is the sense type (level/edge). + * For reference, the following is a list of the interrupt property values + * associated with external interrupt sources on the MPC5200 (just because + * it is non-obvious to determine what the interrupts property should be + * when reading the mpc5200 manual and it is a frequently asked question). + * + * External interrupts: + * <0 0 n> external irq0, n is sense (n=0: level high, + * <1 1 n> external irq1, n is sense n=1: edge rising, + * <1 2 n> external irq2, n is sense n=2: edge falling, + * <1 3 n> external irq3, n is sense n=3: level low) + */ #undef DEBUG #include <linux/interrupt.h> @@ -24,11 +104,19 @@ #include <asm/io.h> #include <asm/prom.h> #include <asm/mpc52xx.h> -#include "mpc52xx_pic.h" -/* - * -*/ +/* HW IRQ mapping */ +#define MPC52xx_IRQ_L1_CRIT (0) +#define MPC52xx_IRQ_L1_MAIN (1) +#define MPC52xx_IRQ_L1_PERP (2) +#define MPC52xx_IRQ_L1_SDMA (3) + +#define MPC52xx_IRQ_L1_OFFSET (6) +#define MPC52xx_IRQ_L1_MASK (0x00c0) +#define MPC52xx_IRQ_L2_MASK (0x003f) + +#define MPC52xx_IRQ_HIGHTESTHWIRQ (0xd0) + /* MPC5200 device tree match tables */ static struct of_device_id mpc52xx_pic_ids[] __initdata = { @@ -53,10 +141,7 @@ static unsigned char mpc52xx_map_senses[4] = { IRQ_TYPE_LEVEL_LOW, }; -/* - * -*/ - +/* Utility functions */ static inline void io_be_setbit(u32 __iomem *addr, int bitno) { out_be32(addr, in_be32(addr) | (1 << bitno)); @@ -69,15 +154,14 @@ static inline void io_be_clrbit(u32 __iomem *addr, int bitno) /* * IRQ[0-3] interrupt irq_chip -*/ - + */ static void mpc52xx_extirq_mask(unsigned int virq) { int irq; int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -90,7 +174,7 @@ static void mpc52xx_extirq_unmask(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -103,7 +187,7 @@ static void mpc52xx_extirq_ack(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -117,7 +201,7 @@ static int mpc52xx_extirq_set_type(unsigned int virq, unsigned int flow_type) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d flow_type=%d\n", __func__, irq, l2irq, flow_type); @@ -156,15 +240,14 @@ static struct irq_chip mpc52xx_extirq_irqchip = { /* * Main interrupt irq_chip -*/ - + */ static void mpc52xx_main_mask(unsigned int virq) { int irq; int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -177,7 +260,7 @@ static void mpc52xx_main_unmask(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -193,15 +276,14 @@ static struct irq_chip mpc52xx_main_irqchip = { /* * Peripherals interrupt irq_chip -*/ - + */ static void mpc52xx_periph_mask(unsigned int virq) { int irq; int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -214,7 +296,7 @@ static void mpc52xx_periph_unmask(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -230,15 +312,14 @@ static struct irq_chip mpc52xx_periph_irqchip = { /* * SDMA interrupt irq_chip -*/ - + */ static void mpc52xx_sdma_mask(unsigned int virq) { int irq; int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -251,7 +332,7 @@ static void mpc52xx_sdma_unmask(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -264,7 +345,7 @@ static void mpc52xx_sdma_ack(unsigned int virq) int l2irq; irq = irq_map[virq].hwirq; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; pr_debug("%s: irq=%x. l2=%d\n", __func__, irq, l2irq); @@ -278,13 +359,12 @@ static struct irq_chip mpc52xx_sdma_irqchip = { .ack = mpc52xx_sdma_ack, }; -/* - * irq_host -*/ - +/** + * mpc52xx_irqhost_xlate - translate virq# from device tree interrupts property + */ static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct, - u32 * intspec, unsigned int intsize, - irq_hw_number_t * out_hwirq, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) { int intrvect_l1; @@ -299,10 +379,9 @@ static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct, intrvect_l2 = (int)intspec[1]; intrvect_type = (int)intspec[2]; - intrvect_linux = - (intrvect_l1 << MPC52xx_IRQ_L1_OFFSET) & MPC52xx_IRQ_L1_MASK; - intrvect_linux |= - (intrvect_l2 << MPC52xx_IRQ_L2_OFFSET) & MPC52xx_IRQ_L2_MASK; + intrvect_linux = (intrvect_l1 << MPC52xx_IRQ_L1_OFFSET) & + MPC52xx_IRQ_L1_MASK; + intrvect_linux |= intrvect_l2 & MPC52xx_IRQ_L2_MASK; pr_debug("return %x, l1=%d, l2=%d\n", intrvect_linux, intrvect_l1, intrvect_l2); @@ -313,11 +392,11 @@ static int mpc52xx_irqhost_xlate(struct irq_host *h, struct device_node *ct, return 0; } -/* - * this function retrieves the correct IRQ type out - * of the MPC regs - * Only externals IRQs needs this -*/ +/** + * mpc52xx_irqx_gettype - determine the IRQ sense type (level/edge) + * + * Only external IRQs need this. + */ static int mpc52xx_irqx_gettype(int irq) { int type; @@ -329,6 +408,9 @@ static int mpc52xx_irqx_gettype(int irq) return mpc52xx_map_senses[type]; } +/** + * mpc52xx_irqhost_map - Hook to map from virq to an irq_chip structure + */ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq, irq_hw_number_t irq) { @@ -339,7 +421,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq, int type; l1irq = (irq & MPC52xx_IRQ_L1_MASK) >> MPC52xx_IRQ_L1_OFFSET; - l2irq = (irq & MPC52xx_IRQ_L2_MASK) >> MPC52xx_IRQ_L2_OFFSET; + l2irq = irq & MPC52xx_IRQ_L2_MASK; /* * Most of ours IRQs will be level low @@ -379,8 +461,7 @@ static int mpc52xx_irqhost_map(struct irq_host *h, unsigned int virq, break; default: - pr_debug("%s: Error, unknown L1 IRQ (0x%x)\n", __func__, l1irq); - printk(KERN_ERR "Unknow IRQ!\n"); + pr_err("%s: invalid virq requested (0x%x)\n", __func__, virq); return -EINVAL; } @@ -406,10 +487,15 @@ static struct irq_host_ops mpc52xx_irqhost_ops = { .map = mpc52xx_irqhost_map, }; -/* - * init (public) -*/ - +/** + * mpc52xx_init_irq - Initialize and register with the virq subsystem + * + * Hook for setting up IRQs on an mpc5200 system. A pointer to this function + * is to be put into the machine definition structure. + * + * This function searches the device tree for an MPC5200 interrupt controller, + * initializes it, and registers it with the virq subsystem. + */ void __init mpc52xx_init_irq(void) { u32 intr_ctrl; @@ -454,7 +540,6 @@ void __init mpc52xx_init_irq(void) * As last step, add an irq host to translate the real * hw irq information provided by the ofw to linux virq */ - mpc52xx_irqhost = irq_alloc_host(picnode, IRQ_HOST_MAP_LINEAR, MPC52xx_IRQ_HIGHTESTHWIRQ, &mpc52xx_irqhost_ops, -1); @@ -462,12 +547,38 @@ void __init mpc52xx_init_irq(void) if (!mpc52xx_irqhost) panic(__FILE__ ": Cannot allocate the IRQ host\n"); - printk(KERN_INFO "MPC52xx PIC is up and running!\n"); + irq_set_default_host(mpc52xx_irqhost); + + pr_info("MPC52xx PIC is up and running!\n"); } -/* - * get_irq (public) -*/ +/** + * mpc52xx_get_irq - Get pending interrupt number hook function + * + * Called by the interupt handler to determine what IRQ handler needs to be + * executed. + * + * Status of pending interrupts is determined by reading the encoded status + * register. The encoded status register has three fields; one for each of the + * types of interrupts defined by the controller - 'critical', 'main' and + * 'peripheral'. This function reads the status register and returns the IRQ + * number associated with the highest priority pending interrupt. 'Critical' + * interrupts have the highest priority, followed by 'main' interrupts, and + * then 'peripheral'. + * + * The mpc5200 interrupt controller can be configured to boost the priority + * of individual 'peripheral' interrupts. If this is the case then a special + * value will appear in either the crit or main fields indicating a high + * or medium priority peripheral irq has occurred. + * + * This function checks each of the 3 irq request fields and returns the + * first pending interrupt that it finds. + * + * This function also identifies a 4th type of interrupt; 'bestcomm'. Each + * bestcomm DMA task can raise the bestcomm peripheral interrupt. When this + * occurs at task-specific IRQ# is decoded so that each task can have its + * own IRQ handler. + */ unsigned int mpc52xx_get_irq(void) { u32 status; @@ -478,25 +589,21 @@ unsigned int mpc52xx_get_irq(void) irq = (status >> 8) & 0x3; if (irq == 2) /* high priority peripheral */ goto peripheral; - irq |= (MPC52xx_IRQ_L1_CRIT << MPC52xx_IRQ_L1_OFFSET) & - MPC52xx_IRQ_L1_MASK; + irq |= (MPC52xx_IRQ_L1_CRIT << MPC52xx_IRQ_L1_OFFSET); } else if (status & 0x00200000) { /* main */ irq = (status >> 16) & 0x1f; if (irq == 4) /* low priority peripheral */ goto peripheral; - irq |= (MPC52xx_IRQ_L1_MAIN << MPC52xx_IRQ_L1_OFFSET) & - MPC52xx_IRQ_L1_MASK; + irq |= (MPC52xx_IRQ_L1_MAIN << MPC52xx_IRQ_L1_OFFSET); } else if (status & 0x20000000) { /* peripheral */ peripheral: irq = (status >> 24) & 0x1f; if (irq == 0) { /* bestcomm */ status = in_be32(&sdma->IntPend); irq = ffs(status) - 1; - irq |= (MPC52xx_IRQ_L1_SDMA << MPC52xx_IRQ_L1_OFFSET) & - MPC52xx_IRQ_L1_MASK; + irq |= (MPC52xx_IRQ_L1_SDMA << MPC52xx_IRQ_L1_OFFSET); } else { - irq |= (MPC52xx_IRQ_L1_PERP << MPC52xx_IRQ_L1_OFFSET) & - MPC52xx_IRQ_L1_MASK; + irq |= (MPC52xx_IRQ_L1_PERP << MPC52xx_IRQ_L1_OFFSET); } } diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.h b/arch/powerpc/platforms/52xx/mpc52xx_pic.h deleted file mode 100644 index 1a26bcdb304..00000000000 --- a/arch/powerpc/platforms/52xx/mpc52xx_pic.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Header file for Freescale MPC52xx Interrupt controller - * - * Copyright (C) 2004-2005 Sylvain Munaut <tnt@246tNt.com> - * Copyright (C) 2003 MontaVista, Software, Inc. - * - * This file is licensed under the terms of the GNU General Public License - * version 2. This program is licensed "as is" without any warranty of any - * kind, whether express or implied. - */ - -#ifndef __POWERPC_SYSDEV_MPC52xx_PIC_H__ -#define __POWERPC_SYSDEV_MPC52xx_PIC_H__ - -#include <asm/types.h> - - -/* HW IRQ mapping */ -#define MPC52xx_IRQ_L1_CRIT (0) -#define MPC52xx_IRQ_L1_MAIN (1) -#define MPC52xx_IRQ_L1_PERP (2) -#define MPC52xx_IRQ_L1_SDMA (3) - -#define MPC52xx_IRQ_L1_OFFSET (6) -#define MPC52xx_IRQ_L1_MASK (0x00c0) - -#define MPC52xx_IRQ_L2_OFFSET (0) -#define MPC52xx_IRQ_L2_MASK (0x003f) - -#define MPC52xx_IRQ_HIGHTESTHWIRQ (0xd0) - - -/* Interrupt controller Register set */ -struct mpc52xx_intr { - u32 per_mask; /* INTR + 0x00 */ - u32 per_pri1; /* INTR + 0x04 */ - u32 per_pri2; /* INTR + 0x08 */ - u32 per_pri3; /* INTR + 0x0c */ - u32 ctrl; /* INTR + 0x10 */ - u32 main_mask; /* INTR + 0x14 */ - u32 main_pri1; /* INTR + 0x18 */ - u32 main_pri2; /* INTR + 0x1c */ - u32 reserved1; /* INTR + 0x20 */ - u32 enc_status; /* INTR + 0x24 */ - u32 crit_status; /* INTR + 0x28 */ - u32 main_status; /* INTR + 0x2c */ - u32 per_status; /* INTR + 0x30 */ - u32 reserved2; /* INTR + 0x34 */ - u32 per_error; /* INTR + 0x38 */ -}; - -#endif /* __POWERPC_SYSDEV_MPC52xx_PIC_H__ */ - diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c index c72d3304387..a55b0b6813e 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c @@ -5,9 +5,6 @@ #include <asm/cacheflush.h> #include <asm/mpc52xx.h> -#include "mpc52xx_pic.h" - - /* these are defined in mpc52xx_sleep.S, and only used here */ extern void mpc52xx_deep_sleep(void __iomem *sram, void __iomem *sdram_regs, struct mpc52xx_cdm __iomem *, struct mpc52xx_intr __iomem*); diff --git a/arch/powerpc/platforms/82xx/Kconfig b/arch/powerpc/platforms/82xx/Kconfig index 75eb1ede549..30f008b2f92 100644 --- a/arch/powerpc/platforms/82xx/Kconfig +++ b/arch/powerpc/platforms/82xx/Kconfig @@ -38,6 +38,14 @@ config EP8248E This board is also resold by Freescale as the QUICCStart MPC8248 Evaluation System and/or the CWH-PPC-8248N-VE. +config MGCOGE + bool "Keymile MGCOGE" + select 8272 + select 8260 + select FSL_SOC + help + This enables support for the Keymile MGCOGE board. + endif config PQ2ADS diff --git a/arch/powerpc/platforms/82xx/Makefile b/arch/powerpc/platforms/82xx/Makefile index 6cd5cd59bf2..d982793f4db 100644 --- a/arch/powerpc/platforms/82xx/Makefile +++ b/arch/powerpc/platforms/82xx/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_CPM2) += pq2.o obj-$(CONFIG_PQ2_ADS_PCI_PIC) += pq2ads-pci-pic.o obj-$(CONFIG_PQ2FADS) += pq2fads.o obj-$(CONFIG_EP8248E) += ep8248e.o +obj-$(CONFIG_MGCOGE) += mgcoge.o diff --git a/arch/powerpc/platforms/82xx/mgcoge.c b/arch/powerpc/platforms/82xx/mgcoge.c new file mode 100644 index 00000000000..c2af169c1d1 --- /dev/null +++ b/arch/powerpc/platforms/82xx/mgcoge.c @@ -0,0 +1,129 @@ +/* + * Keymile mgcoge support + * Copyright 2008 DENX Software Engineering GmbH + * Author: Heiko Schocher <hs@denx.de> + * + * based on code from: + * Copyright 2007 Freescale Semiconductor, Inc. + * Author: Scott Wood <scottwood@freescale.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/fsl_devices.h> +#include <linux/of_platform.h> + +#include <asm/io.h> +#include <asm/cpm2.h> +#include <asm/udbg.h> +#include <asm/machdep.h> +#include <asm/time.h> +#include <asm/mpc8260.h> +#include <asm/prom.h> + +#include <sysdev/fsl_soc.h> +#include <sysdev/cpm2_pic.h> + +#include "pq2.h" + +static void __init mgcoge_pic_init(void) +{ + struct device_node *np = of_find_compatible_node(NULL, NULL, "fsl,pq2-pic"); + if (!np) { + printk(KERN_ERR "PIC init: can not find cpm-pic node\n"); + return; + } + + cpm2_pic_init(np); + of_node_put(np); +} + +struct cpm_pin { + int port, pin, flags; +}; + +static __initdata struct cpm_pin mgcoge_pins[] = { + + /* SMC2 */ + {1, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {1, 9, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, + + /* SCC4 */ + {3, 25, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {3, 24, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {3, 9, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {3, 8, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {4, 22, CPM_PIN_INPUT | CPM_PIN_PRIMARY}, + {4, 21, CPM_PIN_OUTPUT | CPM_PIN_PRIMARY}, +}; + +static void __init init_ioports(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mgcoge_pins); i++) { + const struct cpm_pin *pin = &mgcoge_pins[i]; + cpm2_set_pin(pin->port - 1, pin->pin, pin->flags); + } + + cpm2_smc_clk_setup(CPM_CLK_SMC2, CPM_BRG8); + cpm2_clk_setup(CPM_CLK_SCC4, CPM_CLK7, CPM_CLK_RX); + cpm2_clk_setup(CPM_CLK_SCC4, CPM_CLK8, CPM_CLK_TX); +} + +static void __init mgcoge_setup_arch(void) +{ + if (ppc_md.progress) + ppc_md.progress("mgcoge_setup_arch()", 0); + + cpm2_reset(); + + /* When this is set, snooping CPM DMA from RAM causes + * machine checks. See erratum SIU18. + */ + clrbits32(&cpm2_immr->im_siu_conf.siu_82xx.sc_bcr, MPC82XX_BCR_PLDP); + + init_ioports(); + + if (ppc_md.progress) + ppc_md.progress("mgcoge_setup_arch(), finish", 0); +} + +static __initdata struct of_device_id of_bus_ids[] = { + { .compatible = "simple-bus", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + + return 0; +} +machine_device_initcall(mgcoge, declare_of_platform_devices); + +/* + * Called very early, device-tree isn't unflattened + */ +static int __init mgcoge_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + return of_flat_dt_is_compatible(root, "keymile,mgcoge"); +} + +define_machine(mgcoge) +{ + .name = "Keymile MGCOGE", + .probe = mgcoge_probe, + .setup_arch = mgcoge_setup_arch, + .init_IRQ = mgcoge_pic_init, + .get_irq = cpm2_get_irq, + .calibrate_decr = generic_calibrate_decr, + .restart = pq2_restart, + .progress = udbg_progress, +}; diff --git a/arch/powerpc/platforms/82xx/pq2.c b/arch/powerpc/platforms/82xx/pq2.c index 1b75902fad6..9761a59f175 100644 --- a/arch/powerpc/platforms/82xx/pq2.c +++ b/arch/powerpc/platforms/82xx/pq2.c @@ -53,7 +53,7 @@ static void __init pq2_pci_add_bridge(struct device_node *np) if (of_address_to_resource(np, 0, &r) || r.end - r.start < 0x10b) goto err; - ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS; + ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS); hose = pcibios_alloc_controller(np); if (!hose) diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig index 6159c5d4e5f..83c664afc89 100644 --- a/arch/powerpc/platforms/83xx/Kconfig +++ b/arch/powerpc/platforms/83xx/Kconfig @@ -19,7 +19,6 @@ config MPC831x_RDB config MPC832x_MDS bool "Freescale MPC832x MDS" select DEFAULT_UIMAGE - select QUICC_ENGINE select PPC_MPC832x help This option enables support for the MPC832x MDS evaluation board. @@ -27,7 +26,6 @@ config MPC832x_MDS config MPC832x_RDB bool "Freescale MPC832x RDB" select DEFAULT_UIMAGE - select QUICC_ENGINE select PPC_MPC832x help This option enables support for the MPC8323 RDB board. @@ -57,15 +55,12 @@ config MPC834x_ITX config MPC836x_MDS bool "Freescale MPC836x MDS" select DEFAULT_UIMAGE - select QUICC_ENGINE help This option enables support for the MPC836x MDS Processor Board. config MPC836x_RDK bool "Freescale/Logic MPC836x RDK" select DEFAULT_UIMAGE - select QUICC_ENGINE - select QE_GPIO select FSL_GTM select FSL_LBC help diff --git a/arch/powerpc/platforms/83xx/mpc837x_mds.c b/arch/powerpc/platforms/83xx/mpc837x_mds.c index be62de23bea..8bb13c80714 100644 --- a/arch/powerpc/platforms/83xx/mpc837x_mds.c +++ b/arch/powerpc/platforms/83xx/mpc837x_mds.c @@ -85,8 +85,14 @@ static void __init mpc837x_mds_setup_arch(void) ppc_md.progress("mpc837x_mds_setup_arch()", 0); #ifdef CONFIG_PCI - for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") + for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") { + if (!of_device_is_available(np)) { + pr_warning("%s: disabled by the firmware.\n", + np->full_name); + continue; + } mpc83xx_add_bridge(np); + } #endif mpc837xmds_usb_cfg(); } diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig index 291675b0097..b79dc710ed3 100644 --- a/arch/powerpc/platforms/85xx/Kconfig +++ b/arch/powerpc/platforms/85xx/Kconfig @@ -33,7 +33,6 @@ config MPC85xx_CDS config MPC85xx_MDS bool "Freescale MPC85xx MDS" select DEFAULT_UIMAGE - select QUICC_ENGINE select PHYLIB help This option enables support for the MPC85xx MDS board diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile index cb3054e1001..f0798c09980 100644 --- a/arch/powerpc/platforms/85xx/Makefile +++ b/arch/powerpc/platforms/85xx/Makefile @@ -1,6 +1,8 @@ # # Makefile for the PowerPC 85xx linux kernel. # +obj-$(CONFIG_SMP) += smp.o + obj-$(CONFIG_MPC8540_ADS) += mpc85xx_ads.o obj-$(CONFIG_MPC8560_ADS) += mpc85xx_ads.o obj-$(CONFIG_MPC85xx_CDS) += mpc85xx_cds.o diff --git a/arch/powerpc/platforms/85xx/ksi8560.c b/arch/powerpc/platforms/85xx/ksi8560.c index 8a3b117b6ce..81cee7bbf2d 100644 --- a/arch/powerpc/platforms/85xx/ksi8560.c +++ b/arch/powerpc/platforms/85xx/ksi8560.c @@ -193,7 +193,6 @@ static void __init ksi8560_setup_arch(void) static void ksi8560_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); @@ -215,9 +214,6 @@ static void ksi8560_show_cpuinfo(struct seq_file *m) /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c index d17807a6b89..21f009023e2 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c @@ -207,22 +207,17 @@ static void __init mpc85xx_ads_setup_arch(void) static void mpc85xx_ads_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); - seq_printf(m, "Machine\t\t: mpc85xx\n"); seq_printf(m, "PVR\t\t: 0x%x\n", pvid); seq_printf(m, "SVR\t\t: 0x%x\n", svid); /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/85xx/mpc85xx_cds.c b/arch/powerpc/platforms/85xx/mpc85xx_cds.c index 50d7ea8f922..aeb6a5bc552 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_cds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_cds.c @@ -307,7 +307,6 @@ static void __init mpc85xx_cds_setup_arch(void) static void mpc85xx_cds_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); @@ -320,9 +319,6 @@ static void mpc85xx_cds_show_cpuinfo(struct seq_file *m) /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ds.c b/arch/powerpc/platforms/85xx/mpc85xx_ds.c index 483b65cbaba..a8301c8ad53 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_ds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_ds.c @@ -63,6 +63,7 @@ void __init mpc85xx_ds_pic_init(void) struct device_node *cascade_node = NULL; int cascade_irq; #endif + unsigned long root = of_get_flat_dt_root(); np = of_find_node_by_type(NULL, "open-pic"); if (np == NULL) { @@ -76,10 +77,19 @@ void __init mpc85xx_ds_pic_init(void) return; } - mpic = mpic_alloc(np, r.start, + if (of_flat_dt_is_compatible(root, "fsl,MPC8572DS-CAMP")) { + mpic = mpic_alloc(np, r.start, + MPIC_PRIMARY | + MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + 0, 256, " OpenPIC "); + } else { + mpic = mpic_alloc(np, r.start, MPIC_PRIMARY | MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + MPIC_SINGLE_DEST_CPU, 0, 256, " OpenPIC "); + } + BUG_ON(mpic == NULL); of_node_put(np); diff --git a/arch/powerpc/platforms/85xx/mpc85xx_mds.c b/arch/powerpc/platforms/85xx/mpc85xx_mds.c index 2494c515591..658a36fab3a 100644 --- a/arch/powerpc/platforms/85xx/mpc85xx_mds.c +++ b/arch/powerpc/platforms/85xx/mpc85xx_mds.c @@ -231,7 +231,7 @@ static void __init mpc85xx_mds_setup_arch(void) static int __init board_fixups(void) { - char phy_id[BUS_ID_SIZE]; + char phy_id[20]; char *compstrs[2] = {"fsl,gianfar-mdio", "fsl,ucc-mdio"}; struct device_node *mdio; struct resource res; @@ -241,13 +241,15 @@ static int __init board_fixups(void) mdio = of_find_compatible_node(NULL, NULL, compstrs[i]); of_address_to_resource(mdio, 0, &res); - snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 1); + snprintf(phy_id, sizeof(phy_id), "%llx:%02x", + (unsigned long long)res.start, 1); phy_register_fixup_for_id(phy_id, mpc8568_fixup_125_clock); phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups); /* Register a workaround for errata */ - snprintf(phy_id, BUS_ID_SIZE, "%x:%02x", res.start, 7); + snprintf(phy_id, sizeof(phy_id), "%llx:%02x", + (unsigned long long)res.start, 7); phy_register_fixup_for_id(phy_id, mpc8568_mds_phy_fixups); of_node_put(mdio); diff --git a/arch/powerpc/platforms/85xx/sbc8548.c b/arch/powerpc/platforms/85xx/sbc8548.c index b9246ea0928..7ec77ce12da 100644 --- a/arch/powerpc/platforms/85xx/sbc8548.c +++ b/arch/powerpc/platforms/85xx/sbc8548.c @@ -136,7 +136,6 @@ static void __init sbc8548_setup_arch(void) static void sbc8548_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); @@ -149,9 +148,6 @@ static void sbc8548_show_cpuinfo(struct seq_file *m) /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/85xx/sbc8560.c b/arch/powerpc/platforms/85xx/sbc8560.c index 6509ade7166..472f254a19d 100644 --- a/arch/powerpc/platforms/85xx/sbc8560.c +++ b/arch/powerpc/platforms/85xx/sbc8560.c @@ -156,7 +156,7 @@ static void __init init_ioports(void) int i; for (i = 0; i < ARRAY_SIZE(sbc8560_pins); i++) { - struct cpm_pin *pin = &sbc8560_pins[i]; + const struct cpm_pin *pin = &sbc8560_pins[i]; cpm2_set_pin(pin->port, pin->pin, pin->flags); } @@ -194,22 +194,17 @@ static void __init sbc8560_setup_arch(void) static void sbc8560_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Wind River\n"); - seq_printf(m, "Machine\t\t: SBC8560\n"); seq_printf(m, "PVR\t\t: 0x%x\n", pvid); seq_printf(m, "SVR\t\t: 0x%x\n", svid); /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c new file mode 100644 index 00000000000..d652c713f49 --- /dev/null +++ b/arch/powerpc/platforms/85xx/smp.c @@ -0,0 +1,104 @@ +/* + * Author: Andy Fleming <afleming@freescale.com> + * Kumar Gala <galak@kernel.crashing.org> + * + * Copyright 2006-2008 Freescale Semiconductor Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/of.h> + +#include <asm/machdep.h> +#include <asm/pgtable.h> +#include <asm/page.h> +#include <asm/mpic.h> +#include <asm/cacheflush.h> + +#include <sysdev/fsl_soc.h> + +extern volatile unsigned long __secondary_hold_acknowledge; +extern void __early_start(void); + +#define BOOT_ENTRY_ADDR_UPPER 0 +#define BOOT_ENTRY_ADDR_LOWER 1 +#define BOOT_ENTRY_R3_UPPER 2 +#define BOOT_ENTRY_R3_LOWER 3 +#define BOOT_ENTRY_RESV 4 +#define BOOT_ENTRY_PIR 5 +#define BOOT_ENTRY_R6_UPPER 6 +#define BOOT_ENTRY_R6_LOWER 7 +#define NUM_BOOT_ENTRY 8 +#define SIZE_BOOT_ENTRY (NUM_BOOT_ENTRY * sizeof(u32)) + +static void __init +smp_85xx_kick_cpu(int nr) +{ + unsigned long flags; + const u64 *cpu_rel_addr; + __iomem u32 *bptr_vaddr; + struct device_node *np; + int n = 0; + + WARN_ON (nr < 0 || nr >= NR_CPUS); + + pr_debug("smp_85xx_kick_cpu: kick CPU #%d\n", nr); + + local_irq_save(flags); + + np = of_get_cpu_node(nr, NULL); + cpu_rel_addr = of_get_property(np, "cpu-release-addr", NULL); + + if (cpu_rel_addr == NULL) { + printk(KERN_ERR "No cpu-release-addr for cpu %d\n", nr); + return; + } + + /* Map the spin table */ + bptr_vaddr = ioremap(*cpu_rel_addr, SIZE_BOOT_ENTRY); + + out_be32(bptr_vaddr + BOOT_ENTRY_PIR, nr); + out_be32(bptr_vaddr + BOOT_ENTRY_ADDR_LOWER, __pa(__early_start)); + + /* Wait a bit for the CPU to ack. */ + while ((__secondary_hold_acknowledge != nr) && (++n < 1000)) + mdelay(1); + + iounmap(bptr_vaddr); + + local_irq_restore(flags); + + pr_debug("waited %d msecs for CPU #%d.\n", n, nr); +} + +static void __init +smp_85xx_setup_cpu(int cpu_nr) +{ + mpic_setup_this_cpu(); + + /* Clear any pending timer interrupts */ + mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS); + + /* Enable decrementer interrupt */ + mtspr(SPRN_TCR, TCR_DIE); +} + +struct smp_ops_t smp_85xx_ops = { + .message_pass = smp_mpic_message_pass, + .probe = smp_mpic_probe, + .kick_cpu = smp_85xx_kick_cpu, + .setup_cpu = smp_85xx_setup_cpu, +}; + +void __init +mpc85xx_smp_init(void) +{ + smp_ops = &smp_85xx_ops; +} diff --git a/arch/powerpc/platforms/85xx/stx_gp3.c b/arch/powerpc/platforms/85xx/stx_gp3.c index 18499d7c9d9..0cca8f5cb27 100644 --- a/arch/powerpc/platforms/85xx/stx_gp3.c +++ b/arch/powerpc/platforms/85xx/stx_gp3.c @@ -130,7 +130,6 @@ static void __init stx_gp3_setup_arch(void) static void stx_gp3_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); @@ -142,9 +141,6 @@ static void stx_gp3_show_cpuinfo(struct seq_file *m) /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/85xx/tqm85xx.c b/arch/powerpc/platforms/85xx/tqm85xx.c index d850880d696..2933a8e827d 100644 --- a/arch/powerpc/platforms/85xx/tqm85xx.c +++ b/arch/powerpc/platforms/85xx/tqm85xx.c @@ -138,7 +138,6 @@ static void __init tqm85xx_setup_arch(void) static void tqm85xx_show_cpuinfo(struct seq_file *m) { uint pvid, svid, phid1; - uint memsize = total_memory; pvid = mfspr(SPRN_PVR); svid = mfspr(SPRN_SVR); @@ -150,9 +149,6 @@ static void tqm85xx_show_cpuinfo(struct seq_file *m) /* Display cpu Pll setting */ phid1 = mfspr(SPRN_HID1); seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f)); - - /* Display the amount of memory */ - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } static struct of_device_id __initdata of_bus_ids[] = { diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig index 9355a526943..8e569393597 100644 --- a/arch/powerpc/platforms/86xx/Kconfig +++ b/arch/powerpc/platforms/86xx/Kconfig @@ -31,6 +31,15 @@ config MPC8610_HPCD help This option enables support for the MPC8610 HPCD board. +config GEF_SBC610 + bool "GE Fanuc SBC610" + select DEFAULT_UIMAGE + select GENERIC_GPIO + select ARCH_REQUIRE_GPIOLIB + select HAS_RAPIDIO + help + This option enables support for GE Fanuc's SBC610. + endif config MPC8641 @@ -39,7 +48,7 @@ config MPC8641 select FSL_PCI if PCI select PPC_UDBG_16550 select MPIC - default y if MPC8641_HPCN || SBC8641D + default y if MPC8641_HPCN || SBC8641D || GEF_SBC610 config MPC8610 bool diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile index 8fee37dec79..31e540c2ebb 100644 --- a/arch/powerpc/platforms/86xx/Makefile +++ b/arch/powerpc/platforms/86xx/Makefile @@ -7,3 +7,5 @@ obj-$(CONFIG_SMP) += mpc86xx_smp.o obj-$(CONFIG_MPC8641_HPCN) += mpc86xx_hpcn.o obj-$(CONFIG_SBC8641D) += sbc8641d.o obj-$(CONFIG_MPC8610_HPCD) += mpc8610_hpcd.o +gef-gpio-$(CONFIG_GPIOLIB) += gef_gpio.o +obj-$(CONFIG_GEF_SBC610) += gef_sbc610.o gef_pic.o $(gef-gpio-y) diff --git a/arch/powerpc/platforms/86xx/gef_gpio.c b/arch/powerpc/platforms/86xx/gef_gpio.c new file mode 100644 index 00000000000..85b2800f4cb --- /dev/null +++ b/arch/powerpc/platforms/86xx/gef_gpio.c @@ -0,0 +1,143 @@ +/* + * Driver for GE Fanuc's FPGA based GPIO pins + * + * Author: Martyn Welch <martyn.welch@gefanuc.com> + * + * 2008 (c) GE Fanuc Intelligent Platforms Embedded Systems, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +/* TODO + * + * Configuration of output modes (totem-pole/open-drain) + * Interrupt configuration - interrupts are always generated the FPGA relies on + * the I/O interrupt controllers mask to stop them propergating + */ + +#include <linux/kernel.h> +#include <linux/compiler.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_platform.h> +#include <linux/of_gpio.h> +#include <linux/gpio.h> + +#define GEF_GPIO_DIRECT 0x00 +#define GEF_GPIO_IN 0x04 +#define GEF_GPIO_OUT 0x08 +#define GEF_GPIO_TRIG 0x0C +#define GEF_GPIO_POLAR_A 0x10 +#define GEF_GPIO_POLAR_B 0x14 +#define GEF_GPIO_INT_STAT 0x18 +#define GEF_GPIO_OVERRUN 0x1C +#define GEF_GPIO_MODE 0x20 + +#define NUM_GPIO 19 + +static void _gef_gpio_set(void __iomem *reg, unsigned int offset, int value) +{ + unsigned int data; + + data = ioread32be(reg); + /* value: 0=low; 1=high */ + if (value & 0x1) + data = data | (0x1 << offset); + else + data = data & ~(0x1 << offset); + + iowrite32be(data, reg); +} + + +static int gef_gpio_dir_in(struct gpio_chip *chip, unsigned offset) +{ + unsigned int data; + struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); + + data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT); + data = data | (0x1 << offset); + iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT); + + return 0; +} + +static int gef_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value) +{ + unsigned int data; + struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); + + /* Set direction before switching to input */ + _gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value); + + data = ioread32be(mmchip->regs + GEF_GPIO_DIRECT); + data = data & ~(0x1 << offset); + iowrite32be(data, mmchip->regs + GEF_GPIO_DIRECT); + + return 0; +} + +static int gef_gpio_get(struct gpio_chip *chip, unsigned offset) +{ + unsigned int data; + int state = 0; + struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); + + data = ioread32be(mmchip->regs + GEF_GPIO_IN); + state = (int)((data >> offset) & 0x1); + + return state; +} + +static void gef_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +{ + struct of_mm_gpio_chip *mmchip = to_of_mm_gpio_chip(chip); + + _gef_gpio_set(mmchip->regs + GEF_GPIO_OUT, offset, value); +} + +static int __init gef_gpio_init(void) +{ + struct device_node *np; + + for_each_compatible_node(np, NULL, "gef,sbc610-gpio") { + int retval; + struct of_mm_gpio_chip *gef_gpio_chip; + + pr_debug("%s: Initialising GEF GPIO\n", np->full_name); + + /* Allocate chip structure */ + gef_gpio_chip = kzalloc(sizeof(*gef_gpio_chip), GFP_KERNEL); + if (!gef_gpio_chip) { + pr_err("%s: Unable to allocate structure\n", + np->full_name); + continue; + } + + /* Setup pointers to chip functions */ + gef_gpio_chip->of_gc.gpio_cells = 2; + gef_gpio_chip->of_gc.gc.ngpio = NUM_GPIO; + gef_gpio_chip->of_gc.gc.direction_input = gef_gpio_dir_in; + gef_gpio_chip->of_gc.gc.direction_output = gef_gpio_dir_out; + gef_gpio_chip->of_gc.gc.get = gef_gpio_get; + gef_gpio_chip->of_gc.gc.set = gef_gpio_set; + + /* This function adds a memory mapped GPIO chip */ + retval = of_mm_gpiochip_add(np, gef_gpio_chip); + if (retval) { + kfree(gef_gpio_chip); + pr_err("%s: Unable to add GPIO\n", np->full_name); + } + } + + return 0; +}; +arch_initcall(gef_gpio_init); + +MODULE_DESCRIPTION("GE Fanuc I/O FPGA GPIO driver"); +MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com"); +MODULE_LICENSE("GPL"); diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c new file mode 100644 index 00000000000..50d0a2b6380 --- /dev/null +++ b/arch/powerpc/platforms/86xx/gef_pic.c @@ -0,0 +1,258 @@ +/* + * Interrupt handling for GE Fanuc's FPGA based PIC + * + * Author: Martyn Welch <martyn.welch@gefanuc.com> + * + * 2008 (c) GE Fanuc Intelligent Platforms Embedded Systems, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/spinlock.h> + +#include <asm/byteorder.h> +#include <asm/io.h> +#include <asm/prom.h> +#include <asm/irq.h> + +#include "gef_pic.h" + +#define DEBUG +#undef DEBUG + +#ifdef DEBUG +#define DBG(fmt...) do { printk(KERN_DEBUG "gef_pic: " fmt); } while (0) +#else +#define DBG(fmt...) do { } while (0) +#endif + +#define GEF_PIC_NUM_IRQS 32 + +/* Interrupt Controller Interface Registers */ +#define GEF_PIC_INTR_STATUS 0x0000 + +#define GEF_PIC_INTR_MASK(cpu) (0x0010 + (0x4 * cpu)) +#define GEF_PIC_CPU0_INTR_MASK GEF_PIC_INTR_MASK(0) +#define GEF_PIC_CPU1_INTR_MASK GEF_PIC_INTR_MASK(1) + +#define GEF_PIC_MCP_MASK(cpu) (0x0018 + (0x4 * cpu)) +#define GEF_PIC_CPU0_MCP_MASK GEF_PIC_MCP_MASK(0) +#define GEF_PIC_CPU1_MCP_MASK GEF_PIC_MCP_MASK(1) + +#define gef_irq_to_hw(virq) ((unsigned int)irq_map[virq].hwirq) + + +static DEFINE_SPINLOCK(gef_pic_lock); + +static void __iomem *gef_pic_irq_reg_base; +static struct irq_host *gef_pic_irq_host; +static int gef_pic_cascade_irq; + +/* + * Interrupt Controller Handling + * + * The interrupt controller handles interrupts for most on board interrupts, + * apart from PCI interrupts. For example on SBC610: + * + * 17:31 RO Reserved + * 16 RO PCI Express Doorbell 3 Status + * 15 RO PCI Express Doorbell 2 Status + * 14 RO PCI Express Doorbell 1 Status + * 13 RO PCI Express Doorbell 0 Status + * 12 RO Real Time Clock Interrupt Status + * 11 RO Temperature Interrupt Status + * 10 RO Temperature Critical Interrupt Status + * 9 RO Ethernet PHY1 Interrupt Status + * 8 RO Ethernet PHY3 Interrupt Status + * 7 RO PEX8548 Interrupt Status + * 6 RO Reserved + * 5 RO Watchdog 0 Interrupt Status + * 4 RO Watchdog 1 Interrupt Status + * 3 RO AXIS Message FIFO A Interrupt Status + * 2 RO AXIS Message FIFO B Interrupt Status + * 1 RO AXIS Message FIFO C Interrupt Status + * 0 RO AXIS Message FIFO D Interrupt Status + * + * Interrupts can be forwarded to one of two output lines. Nothing + * clever is done, so if the masks are incorrectly set, a single input + * interrupt could generate interrupts on both output lines! + * + * The dual lines are there to allow the chained interrupts to be easily + * passed into two different cores. We currently do not use this functionality + * in this driver. + * + * Controller can also be configured to generate Machine checks (MCP), again on + * two lines, to be attached to two different cores. It is suggested that these + * should be masked out. + */ + +void gef_pic_cascade(unsigned int irq, struct irq_desc *desc) +{ + unsigned int cascade_irq; + + /* + * See if we actually have an interrupt, call generic handling code if + * we do. + */ + cascade_irq = gef_pic_get_irq(); + + if (cascade_irq != NO_IRQ) + generic_handle_irq(cascade_irq); + + desc->chip->eoi(irq); + +} + +static void gef_pic_mask(unsigned int virq) +{ + unsigned long flags; + unsigned int hwirq; + u32 mask; + + hwirq = gef_irq_to_hw(virq); + + spin_lock_irqsave(&gef_pic_lock, flags); + mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); + mask &= ~(1 << hwirq); + out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask); + spin_unlock_irqrestore(&gef_pic_lock, flags); +} + +static void gef_pic_mask_ack(unsigned int virq) +{ + /* Don't think we actually have to do anything to ack an interrupt, + * we just need to clear down the devices interrupt and it will go away + */ + gef_pic_mask(virq); +} + +static void gef_pic_unmask(unsigned int virq) +{ + unsigned long flags; + unsigned int hwirq; + u32 mask; + + hwirq = gef_irq_to_hw(virq); + + spin_lock_irqsave(&gef_pic_lock, flags); + mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); + mask |= (1 << hwirq); + out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask); + spin_unlock_irqrestore(&gef_pic_lock, flags); +} + +static struct irq_chip gef_pic_chip = { + .typename = "gefp", + .mask = gef_pic_mask, + .mask_ack = gef_pic_mask_ack, + .unmask = gef_pic_unmask, +}; + + +/* When an interrupt is being configured, this call allows some flexibilty + * in deciding which irq_chip structure is used + */ +static int gef_pic_host_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hwirq) +{ + /* All interrupts are LEVEL sensitive */ + get_irq_desc(virq)->status |= IRQ_LEVEL; + set_irq_chip_and_handler(virq, &gef_pic_chip, handle_level_irq); + + return 0; +} + +static int gef_pic_host_xlate(struct irq_host *h, struct device_node *ct, + u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, unsigned int *out_flags) +{ + + *out_hwirq = intspec[0]; + if (intsize > 1) + *out_flags = intspec[1]; + else + *out_flags = IRQ_TYPE_LEVEL_HIGH; + + return 0; +} + +static struct irq_host_ops gef_pic_host_ops = { + .map = gef_pic_host_map, + .xlate = gef_pic_host_xlate, +}; + + +/* + * Initialisation of PIC, this should be called in BSP + */ +void __init gef_pic_init(struct device_node *np) +{ + unsigned long flags; + + /* Map the devices registers into memory */ + gef_pic_irq_reg_base = of_iomap(np, 0); + + spin_lock_irqsave(&gef_pic_lock, flags); + + /* Initialise everything as masked. */ + out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_INTR_MASK, 0); + out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU1_INTR_MASK, 0); + + out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_MCP_MASK, 0); + out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU1_MCP_MASK, 0); + + spin_unlock_irqrestore(&gef_pic_lock, flags); + + /* Map controller */ + gef_pic_cascade_irq = irq_of_parse_and_map(np, 0); + if (gef_pic_cascade_irq == NO_IRQ) { + printk(KERN_ERR "SBC610: failed to map cascade interrupt"); + return; + } + + /* Setup an irq_host structure */ + gef_pic_irq_host = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, + GEF_PIC_NUM_IRQS, + &gef_pic_host_ops, NO_IRQ); + if (gef_pic_irq_host == NULL) + return; + + /* Chain with parent controller */ + set_irq_chained_handler(gef_pic_cascade_irq, gef_pic_cascade); +} + +/* + * This is called when we receive an interrupt with apparently comes from this + * chip - check, returning the highest interrupt generated or return NO_IRQ + */ +unsigned int gef_pic_get_irq(void) +{ + u32 cause, mask, active; + unsigned int virq = NO_IRQ; + int hwirq; + + cause = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_STATUS); + + mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0)); + + active = cause & mask; + + if (active) { + for (hwirq = GEF_PIC_NUM_IRQS - 1; hwirq > -1; hwirq--) { + if (active & (0x1 << hwirq)) + break; + } + virq = irq_linear_revmap(gef_pic_irq_host, + (irq_hw_number_t)hwirq); + } + + return virq; +} + diff --git a/arch/powerpc/platforms/86xx/gef_pic.h b/arch/powerpc/platforms/86xx/gef_pic.h new file mode 100644 index 00000000000..6149916da3f --- /dev/null +++ b/arch/powerpc/platforms/86xx/gef_pic.h @@ -0,0 +1,11 @@ +#ifndef __GEF_PIC_H__ +#define __GEF_PIC_H__ + +#include <linux/init.h> + +void gef_pic_cascade(unsigned int, struct irq_desc *); +unsigned int gef_pic_get_irq(void); +void gef_pic_init(struct device_node *); + +#endif /* __GEF_PIC_H__ */ + diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c new file mode 100644 index 00000000000..fb371f5ce13 --- /dev/null +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c @@ -0,0 +1,219 @@ +/* + * GE Fanuc SBC610 board support + * + * Author: Martyn Welch <martyn.welch@gefanuc.com> + * + * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines) + * Copyright 2006 Freescale Semiconductor Inc. + * + * NEC fixup adapted from arch/mips/pci/fixup-lm2e.c + */ + +#include <linux/stddef.h> +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/kdev_t.h> +#include <linux/delay.h> +#include <linux/seq_file.h> +#include <linux/of_platform.h> + +#include <asm/system.h> +#include <asm/time.h> +#include <asm/machdep.h> +#include <asm/pci-bridge.h> +#include <asm/mpc86xx.h> +#include <asm/prom.h> +#include <mm/mmu_decl.h> +#include <asm/udbg.h> + +#include <asm/mpic.h> + +#include <sysdev/fsl_pci.h> +#include <sysdev/fsl_soc.h> + +#include "mpc86xx.h" +#include "gef_pic.h" + +#undef DEBUG + +#ifdef DEBUG +#define DBG (fmt...) do { printk(KERN_ERR "SBC610: " fmt); } while (0) +#else +#define DBG (fmt...) do { } while (0) +#endif + +void __iomem *sbc610_regs; + +static void __init gef_sbc610_init_irq(void) +{ + struct device_node *cascade_node = NULL; + + mpc86xx_init_irq(); + + /* + * There is a simple interrupt handler in the main FPGA, this needs + * to be cascaded into the MPIC + */ + cascade_node = of_find_compatible_node(NULL, NULL, "gef,fpga-pic"); + if (!cascade_node) { + printk(KERN_WARNING "SBC610: No FPGA PIC\n"); + return; + } + + gef_pic_init(cascade_node); + of_node_put(cascade_node); +} + +static void __init gef_sbc610_setup_arch(void) +{ + struct device_node *regs; +#ifdef CONFIG_PCI + struct device_node *np; + + for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { + fsl_add_bridge(np, 1); + } +#endif + + printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC610 6U VPX SBC\n"); + +#ifdef CONFIG_SMP + mpc86xx_smp_init(); +#endif + + /* Remap basic board registers */ + regs = of_find_compatible_node(NULL, NULL, "gef,fpga-regs"); + if (regs) { + sbc610_regs = of_iomap(regs, 0); + if (sbc610_regs == NULL) + printk(KERN_WARNING "Unable to map board registers\n"); + of_node_put(regs); + } +} + +/* Return the PCB revision */ +static unsigned int gef_sbc610_get_pcb_rev(void) +{ + unsigned int reg; + + reg = ioread32(sbc610_regs); + return (reg >> 8) & 0xff; +} + +/* Return the board (software) revision */ +static unsigned int gef_sbc610_get_board_rev(void) +{ + unsigned int reg; + + reg = ioread32(sbc610_regs); + return (reg >> 16) & 0xff; +} + +/* Return the FPGA revision */ +static unsigned int gef_sbc610_get_fpga_rev(void) +{ + unsigned int reg; + + reg = ioread32(sbc610_regs); + return (reg >> 24) & 0xf; +} + +static void gef_sbc610_show_cpuinfo(struct seq_file *m) +{ + uint svid = mfspr(SPRN_SVR); + + seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n"); + + seq_printf(m, "Revision\t: %u%c\n", gef_sbc610_get_pcb_rev(), + ('A' + gef_sbc610_get_board_rev() - 1)); + seq_printf(m, "FPGA Revision\t: %u\n", gef_sbc610_get_fpga_rev()); + + seq_printf(m, "SVR\t\t: 0x%x\n", svid); +} + +static void __init gef_sbc610_nec_fixup(struct pci_dev *pdev) +{ + unsigned int val; + + printk(KERN_INFO "Running NEC uPD720101 Fixup\n"); + + /* Ensure ports 1, 2, 3, 4 & 5 are enabled */ + pci_read_config_dword(pdev, 0xe0, &val); + pci_write_config_dword(pdev, 0xe0, (val & ~7) | 0x5); + + /* System clock is 48-MHz Oscillator and EHCI Enabled. */ + pci_write_config_dword(pdev, 0xe4, 1 << 5); +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_USB, + gef_sbc610_nec_fixup); + +/* + * Called very early, device-tree isn't unflattened + * + * This function is called to determine whether the BSP is compatible with the + * supplied device-tree, which is assumed to be the correct one for the actual + * board. It is expected thati, in the future, a kernel may support multiple + * boards. + */ +static int __init gef_sbc610_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (of_flat_dt_is_compatible(root, "gef,sbc610")) + return 1; + + return 0; +} + +static long __init mpc86xx_time_init(void) +{ + unsigned int temp; + + /* Set the time base to zero */ + mtspr(SPRN_TBWL, 0); + mtspr(SPRN_TBWU, 0); + + temp = mfspr(SPRN_HID0); + temp |= HID0_TBEN; + mtspr(SPRN_HID0, temp); + asm volatile("isync"); + + return 0; +} + +static __initdata struct of_device_id of_bus_ids[] = { + { .compatible = "simple-bus", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + printk(KERN_DEBUG "Probe platform devices\n"); + of_platform_bus_probe(NULL, of_bus_ids, NULL); + + return 0; +} +machine_device_initcall(gef_sbc610, declare_of_platform_devices); + +define_machine(gef_sbc610) { + .name = "GE Fanuc SBC610", + .probe = gef_sbc610_probe, + .setup_arch = gef_sbc610_setup_arch, + .init_IRQ = gef_sbc610_init_irq, + .show_cpuinfo = gef_sbc610_show_cpuinfo, + .get_irq = mpic_get_irq, + .restart = fsl_rstcr_restart, + .time_init = mpc86xx_time_init, + .calibrate_decr = generic_calibrate_decr, + .progress = udbg_progress, +#ifdef CONFIG_PCI + .pcibios_fixup_bus = fsl_pcibios_fixup_bus, +#endif +}; diff --git a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c index 5eedb710896..e8d54ac5292 100644 --- a/arch/powerpc/platforms/86xx/mpc8610_hpcd.c +++ b/arch/powerpc/platforms/86xx/mpc8610_hpcd.c @@ -238,7 +238,6 @@ static void __init mpc86xx_hpcd_setup_arch(void) } #endif #if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE) - preallocate_diu_videomemory(); diu_ops.get_pixel_format = mpc8610hpcd_get_pixel_format; diu_ops.set_gamma_table = mpc8610hpcd_set_gamma_table; diu_ops.set_monitor_port = mpc8610hpcd_set_monitor_port; diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c index f712d9c0991..27e0e682d8e 100644 --- a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c +++ b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c @@ -101,21 +101,11 @@ mpc86xx_hpcn_setup_arch(void) static void mpc86xx_hpcn_show_cpuinfo(struct seq_file *m) { - struct device_node *root; - uint memsize = total_memory; - const char *model = ""; uint svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); - root = of_find_node_by_path("/"); - if (root) - model = of_get_property(root, "model", NULL); - seq_printf(m, "Machine\t\t: %s\n", model); - of_node_put(root); - seq_printf(m, "SVR\t\t: 0x%x\n", svid); - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c index 8881c5de500..668275d9e66 100644 --- a/arch/powerpc/platforms/86xx/pic.c +++ b/arch/powerpc/platforms/86xx/pic.c @@ -44,7 +44,8 @@ void __init mpc86xx_init_irq(void) mpic = mpic_alloc(np, res.start, MPIC_PRIMARY | MPIC_WANTS_RESET | - MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS, + MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | + MPIC_SINGLE_DEST_CPU, 0, 256, " MPIC "); of_node_put(np); BUG_ON(mpic == NULL); diff --git a/arch/powerpc/platforms/86xx/sbc8641d.c b/arch/powerpc/platforms/86xx/sbc8641d.c index 00e6fad3b3c..5fd7ed40986 100644 --- a/arch/powerpc/platforms/86xx/sbc8641d.c +++ b/arch/powerpc/platforms/86xx/sbc8641d.c @@ -63,21 +63,11 @@ sbc8641_setup_arch(void) static void sbc8641_show_cpuinfo(struct seq_file *m) { - struct device_node *root; - uint memsize = total_memory; - const char *model = ""; uint svid = mfspr(SPRN_SVR); seq_printf(m, "Vendor\t\t: Wind River Systems\n"); - root = of_find_node_by_path("/"); - if (root) - model = of_get_property(root, "model", NULL); - seq_printf(m, "Machine\t\t: %s\n", model); - of_node_put(root); - seq_printf(m, "SVR\t\t: 0x%x\n", svid); - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); } diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig index 71d7562e190..48a920a98e7 100644 --- a/arch/powerpc/platforms/8xx/Kconfig +++ b/arch/powerpc/platforms/8xx/Kconfig @@ -49,6 +49,12 @@ config PPC_ADDER875 This enables support for the Analogue & Micro Adder 875 board. +config PPC_MGSUVD + bool "MGSUVD" + select CPM1 + help + This enables support for the Keymile MGSUVD board. + endchoice menu "Freescale Ethernet driver platform-specific options" diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile index 7b71d9c8fb4..bdbfd749601 100644 --- a/arch/powerpc/platforms/8xx/Makefile +++ b/arch/powerpc/platforms/8xx/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_MPC885ADS) += mpc885ads_setup.o obj-$(CONFIG_MPC86XADS) += mpc86xads_setup.o obj-$(CONFIG_PPC_EP88XC) += ep88xc.o obj-$(CONFIG_PPC_ADDER875) += adder875.o +obj-$(CONFIG_PPC_MGSUVD) += mgsuvd.o diff --git a/arch/powerpc/platforms/8xx/mgsuvd.c b/arch/powerpc/platforms/8xx/mgsuvd.c new file mode 100644 index 00000000000..ca3cb071772 --- /dev/null +++ b/arch/powerpc/platforms/8xx/mgsuvd.c @@ -0,0 +1,92 @@ +/* + * + * Platform setup for the Keymile mgsuvd board + * + * Heiko Schocher <hs@denx.de> + * + * Copyright 2008 DENX Software Engineering GmbH + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/ioport.h> +#include <linux/of_platform.h> + +#include <asm/io.h> +#include <asm/machdep.h> +#include <asm/processor.h> +#include <asm/cpm1.h> +#include <asm/prom.h> +#include <asm/fs_pd.h> + +#include "mpc8xx.h" + +struct cpm_pin { + int port, pin, flags; +}; + +static __initdata struct cpm_pin mgsuvd_pins[] = { + /* SMC1 */ + {CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */ + {CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */ + + /* SCC3 */ + {CPM_PORTA, 10, CPM_PIN_INPUT}, + {CPM_PORTA, 11, CPM_PIN_INPUT}, + {CPM_PORTA, 3, CPM_PIN_INPUT}, + {CPM_PORTA, 2, CPM_PIN_INPUT}, + {CPM_PORTC, 13, CPM_PIN_INPUT}, +}; + +static void __init init_ioports(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mgsuvd_pins); i++) { + struct cpm_pin *pin = &mgsuvd_pins[i]; + cpm1_set_pin(pin->port, pin->pin, pin->flags); + } + + setbits16(&mpc8xx_immr->im_ioport.iop_pcso, 0x300); + cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK5, CPM_CLK_RX); + cpm1_clk_setup(CPM_CLK_SCC3, CPM_CLK6, CPM_CLK_TX); + cpm1_clk_setup(CPM_CLK_SMC1, CPM_BRG1, CPM_CLK_RTX); +} + +static void __init mgsuvd_setup_arch(void) +{ + cpm_reset(); + init_ioports(); +} + +static __initdata struct of_device_id of_bus_ids[] = { + { .compatible = "simple-bus" }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + return 0; +} +machine_device_initcall(mgsuvd, declare_of_platform_devices); + +static int __init mgsuvd_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + return of_flat_dt_is_compatible(root, "keymile,mgsuvd"); +} + +define_machine(mgsuvd) { + .name = "MGSUVD", + .probe = mgsuvd_probe, + .setup_arch = mgsuvd_setup_arch, + .init_IRQ = mpc8xx_pics_init, + .get_irq = mpc8xx_get_irq, + .restart = mpc8xx_restart, + .calibrate_decr = mpc8xx_calibrate_decr, + .set_rtc_time = mpc8xx_set_rtc_time, + .get_rtc_time = mpc8xx_get_rtc_time, +}; diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 4c900efa164..47e956c871f 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -239,7 +239,8 @@ config TAU_AVERAGE If in doubt, say N here. config QUICC_ENGINE - bool + bool "Freescale QUICC Engine (QE) Support" + depends on FSL_SOC select PPC_LIB_RHEAP select CRC32 help @@ -248,6 +249,15 @@ config QUICC_ENGINE Selecting this option means that you wish to build a kernel for a machine with a QE coprocessor. +config QE_GPIO + bool "QE GPIO support" + depends on QUICC_ENGINE + select GENERIC_GPIO + select ARCH_REQUIRE_GPIOLIB + help + Say Y here if you're going to use hardware that connects to the + QE GPIOs. + config CPM2 bool "Enable support for the CPM2 (Communications Processor Module)" depends on MPC85xx || 8260 @@ -293,4 +303,13 @@ config OF_RTC source "arch/powerpc/sysdev/bestcomm/Kconfig" +config MPC8xxx_GPIO + bool "MPC8xxx GPIO support" + depends on PPC_MPC831x || PPC_MPC834x || PPC_MPC837x || PPC_85xx || PPC_86xx + select GENERIC_GPIO + select ARCH_REQUIRE_GPIOLIB + help + Say Y here if you're going to use hardware that connects to the + MPC831x/834x/837x/8572/8610 GPIOs. + endmenu diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 7f651273386..3d0c776f888 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -50,6 +50,7 @@ config 44x select PPC_UDBG_16550 select 4xx_SOC select PPC_PCI_CHOICE + select PHYS_64BIT config E200 bool "Freescale e200" @@ -128,18 +129,19 @@ config FSL_EMB_PERFMON config PTE_64BIT bool - depends on 44x || E500 - default y if 44x - default y if E500 && PHYS_64BIT + depends on 44x || E500 || PPC_86xx + default y if PHYS_64BIT config PHYS_64BIT - bool 'Large physical address support' if E500 - depends on 44x || E500 - select RESOURCES_64BIT - default y if 44x + bool 'Large physical address support' if E500 || PPC_86xx + depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx ---help--- This option enables kernel support for larger than 32-bit physical - addresses. This features is not be available on all e500 cores. + addresses. This feature may not be available on all cores. + + If you have more than 3.5GB of RAM or so, you also need to enable + SWIOTLB under Kernel Options for this to work. The actual number + is platform-dependent. If in doubt, say N here. @@ -193,16 +195,24 @@ config SPE config PPC_STD_MMU bool - depends on 6xx || POWER3 || POWER4 || PPC64 + depends on 6xx || PPC64 default y config PPC_STD_MMU_32 def_bool y depends on PPC_STD_MMU && PPC32 +config PPC_STD_MMU_64 + def_bool y + depends on PPC_STD_MMU && PPC64 + +config PPC_MMU_NOHASH + def_bool y + depends on !PPC_STD_MMU + config PPC_MM_SLICES bool - default y if HUGETLB_PAGE || PPC_64K_PAGES + default y if HUGETLB_PAGE || (PPC_STD_MMU_64 && PPC_64K_PAGES) default n config VIRT_CPU_ACCOUNTING diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig index c14d7d8d96c..5cc3279559a 100644 --- a/arch/powerpc/platforms/cell/Kconfig +++ b/arch/powerpc/platforms/cell/Kconfig @@ -2,13 +2,18 @@ config PPC_CELL bool default n -config PPC_CELL_NATIVE +config PPC_CELL_COMMON bool select PPC_CELL select PPC_DCR_MMIO - select PPC_OF_PLATFORM_PCI select PPC_INDIRECT_IO select PPC_NATIVE + select PPC_RTAS + +config PPC_CELL_NATIVE + bool + select PPC_CELL_COMMON + select PPC_OF_PLATFORM_PCI select MPIC select IBM_NEW_EMAC_EMAC4 select IBM_NEW_EMAC_RGMII @@ -20,7 +25,6 @@ config PPC_IBM_CELL_BLADE bool "IBM Cell Blade" depends on PPC_MULTIPLATFORM && PPC64 select PPC_CELL_NATIVE - select PPC_RTAS select MMIO_NVRAM select PPC_UDBG_16550 select UDBG_RTAS_CONSOLE @@ -28,16 +32,17 @@ config PPC_IBM_CELL_BLADE config PPC_CELLEB bool "Toshiba's Cell Reference Set 'Celleb' Architecture" depends on PPC_MULTIPLATFORM && PPC64 - select PPC_CELL select PPC_CELL_NATIVE - select PPC_RTAS - select PPC_INDIRECT_IO - select PPC_OF_PLATFORM_PCI select HAS_TXX9_SERIAL select PPC_UDBG_BEAT select USB_OHCI_BIG_ENDIAN_MMIO select USB_EHCI_BIG_ENDIAN_MMIO +config PPC_CELL_QPACE + bool "IBM Cell - QPACE" + depends on PPC_MULTIPLATFORM && PPC64 + select PPC_CELL_COMMON + menu "Cell Broadband Engine options" depends on PPC_CELL @@ -102,7 +107,7 @@ config PPC_IBM_CELL_POWERBUTTON config CBE_THERM tristate "CBE thermal support" default m - depends on CBE_RAS + depends on CBE_RAS && SPU_BASE config CBE_CPUFREQ tristate "CBE frequency scaling" @@ -136,5 +141,5 @@ endmenu config OPROFILE_CELL def_bool y - depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y) + depends on PPC_CELL_NATIVE && (OPROFILE = m || OPROFILE = y) && SPU_BASE diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile index 7fd830872c4..43eccb27030 100644 --- a/arch/powerpc/platforms/cell/Makefile +++ b/arch/powerpc/platforms/cell/Makefile @@ -1,7 +1,7 @@ -obj-$(CONFIG_PPC_CELL_NATIVE) += interrupt.o iommu.o setup.o \ - cbe_regs.o spider-pic.o \ - pervasive.o pmu.o io-workarounds.o \ - spider-pci.o +obj-$(CONFIG_PPC_CELL_COMMON) += cbe_regs.o interrupt.o pervasive.o + +obj-$(CONFIG_PPC_CELL_NATIVE) += iommu.o setup.o spider-pic.o \ + pmu.o io-workarounds.o spider-pci.o obj-$(CONFIG_CBE_RAS) += ras.o obj-$(CONFIG_CBE_THERM) += cbe_thermal.o @@ -14,13 +14,12 @@ obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON) += cbe_powerbutton.o ifeq ($(CONFIG_SMP),y) obj-$(CONFIG_PPC_CELL_NATIVE) += smp.o +obj-$(CONFIG_PPC_CELL_QPACE) += smp.o endif # needed only when building loadable spufs.ko -spu-priv1-$(CONFIG_PPC_CELL_NATIVE) += spu_priv1_mmio.o - -spu-manage-$(CONFIG_PPC_CELLEB) += spu_manage.o -spu-manage-$(CONFIG_PPC_CELL_NATIVE) += spu_manage.o +spu-priv1-$(CONFIG_PPC_CELL_COMMON) += spu_priv1_mmio.o +spu-manage-$(CONFIG_PPC_CELL_COMMON) += spu_manage.o obj-$(CONFIG_SPU_BASE) += spu_callbacks.o spu_base.o \ spu_notify.o \ @@ -31,6 +30,8 @@ obj-$(CONFIG_SPU_BASE) += spu_callbacks.o spu_base.o \ obj-$(CONFIG_PCI_MSI) += axon_msi.o +# qpace setup +obj-$(CONFIG_PPC_CELL_QPACE) += qpace_setup.o # celleb stuff ifeq ($(CONFIG_PPC_CELLEB),y) diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c index 896548ba1ca..0ce45c2b42f 100644 --- a/arch/powerpc/platforms/cell/axon_msi.c +++ b/arch/powerpc/platforms/cell/axon_msi.c @@ -95,6 +95,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) struct axon_msic *msic = get_irq_data(irq); u32 write_offset, msi; int idx; + int retry = 0; write_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG); pr_debug("axon_msi: original write_offset 0x%x\n", write_offset); @@ -102,7 +103,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) /* write_offset doesn't wrap properly, so we have to mask it */ write_offset &= MSIC_FIFO_SIZE_MASK; - while (msic->read_offset != write_offset) { + while (msic->read_offset != write_offset && retry < 100) { idx = msic->read_offset / sizeof(__le32); msi = le32_to_cpu(msic->fifo_virt[idx]); msi &= 0xFFFF; @@ -110,13 +111,37 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc) pr_debug("axon_msi: woff %x roff %x msi %x\n", write_offset, msic->read_offset, msi); + if (msi < NR_IRQS && irq_map[msi].host == msic->irq_host) { + generic_handle_irq(msi); + msic->fifo_virt[idx] = cpu_to_le32(0xffffffff); + } else { + /* + * Reading the MSIC_WRITE_OFFSET_REG does not + * reliably flush the outstanding DMA to the + * FIFO buffer. Here we were reading stale + * data, so we need to retry. + */ + udelay(1); + retry++; + pr_debug("axon_msi: invalid irq 0x%x!\n", msi); + continue; + } + + if (retry) { + pr_debug("axon_msi: late irq 0x%x, retry %d\n", + msi, retry); + retry = 0; + } + msic->read_offset += MSIC_FIFO_ENTRY_SIZE; msic->read_offset &= MSIC_FIFO_SIZE_MASK; + } - if (msi < NR_IRQS && irq_map[msi].host == msic->irq_host) - generic_handle_irq(msi); - else - pr_debug("axon_msi: invalid irq 0x%x!\n", msi); + if (retry) { + printk(KERN_WARNING "axon_msi: irq timed out\n"); + + msic->read_offset += MSIC_FIFO_ENTRY_SIZE; + msic->read_offset &= MSIC_FIFO_SIZE_MASK; } desc->chip->eoi(irq); @@ -364,6 +389,7 @@ static int axon_msi_probe(struct of_device *device, dn->full_name); goto out_free_fifo; } + memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES); msic->irq_host = irq_alloc_host(dn, IRQ_HOST_MAP_NOMAP, NR_IRQS, &msic_host_ops, 0); @@ -387,6 +413,9 @@ static int axon_msi_probe(struct of_device *device, MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE | MSIC_CTRL_FIFO_SIZE); + msic->read_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG) + & MSIC_FIFO_SIZE_MASK; + device->dev.platform_data = msic; ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs; diff --git a/arch/powerpc/platforms/cell/celleb_setup.c b/arch/powerpc/platforms/cell/celleb_setup.c index b11cb30decb..07c234f6b2b 100644 --- a/arch/powerpc/platforms/cell/celleb_setup.c +++ b/arch/powerpc/platforms/cell/celleb_setup.c @@ -45,7 +45,6 @@ #include <asm/mmu.h> #include <asm/processor.h> #include <asm/io.h> -#include <asm/kexec.h> #include <asm/prom.h> #include <asm/machdep.h> #include <asm/cputable.h> @@ -226,9 +225,6 @@ define_machine(celleb_beat) { .pci_setup_phb = celleb_setup_phb, #ifdef CONFIG_KEXEC .kexec_cpu_down = beat_kexec_cpu_down, - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, #endif }; @@ -248,9 +244,4 @@ define_machine(celleb_native) { .pci_probe_mode = celleb_pci_probe_mode, .pci_setup_phb = celleb_setup_phb, .init_IRQ = celleb_init_IRQ_native, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif }; diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index e06420af5fe..86db4dd170a 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -556,11 +556,11 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev) * node's iommu. We -might- do something smarter later though it may * never be necessary */ - iommu = cell_iommu_for_node(archdata->numa_node); + iommu = cell_iommu_for_node(dev_to_node(dev)); if (iommu == NULL || list_empty(&iommu->windows)) { printk(KERN_ERR "iommu: missing iommu for %s (node %d)\n", archdata->of_node ? archdata->of_node->full_name : "?", - archdata->numa_node); + dev_to_node(dev)); return NULL; } window = list_entry(iommu->windows.next, struct iommu_window, list); @@ -577,7 +577,7 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, return iommu_alloc_coherent(dev, cell_get_iommu_table(dev), size, dma_handle, device_to_mask(dev), flag, - dev->archdata.numa_node); + dev_to_node(dev)); else return dma_direct_ops.alloc_coherent(dev, size, dma_handle, flag); @@ -593,31 +593,30 @@ static void dma_fixed_free_coherent(struct device *dev, size_t size, dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle); } -static dma_addr_t dma_fixed_map_single(struct device *dev, void *ptr, - size_t size, - enum dma_data_direction direction, - struct dma_attrs *attrs) +static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) - return dma_direct_ops.map_single(dev, ptr, size, direction, - attrs); + return dma_direct_ops.map_page(dev, page, offset, size, + direction, attrs); else - return iommu_map_single(dev, cell_get_iommu_table(dev), ptr, - size, device_to_mask(dev), direction, - attrs); + return iommu_map_page(dev, cell_get_iommu_table(dev), page, + offset, size, device_to_mask(dev), + direction, attrs); } -static void dma_fixed_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, - enum dma_data_direction direction, - struct dma_attrs *attrs) +static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction direction, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs)) - dma_direct_ops.unmap_single(dev, dma_addr, size, direction, - attrs); + dma_direct_ops.unmap_page(dev, dma_addr, size, direction, + attrs); else - iommu_unmap_single(cell_get_iommu_table(dev), dma_addr, size, - direction, attrs); + iommu_unmap_page(cell_get_iommu_table(dev), dma_addr, size, + direction, attrs); } static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg, @@ -652,12 +651,12 @@ static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); struct dma_mapping_ops dma_iommu_fixed_ops = { .alloc_coherent = dma_fixed_alloc_coherent, .free_coherent = dma_fixed_free_coherent, - .map_single = dma_fixed_map_single, - .unmap_single = dma_fixed_unmap_single, .map_sg = dma_fixed_map_sg, .unmap_sg = dma_fixed_unmap_sg, .dma_supported = dma_fixed_dma_supported, .set_dma_mask = dma_set_mask_and_switch, + .map_page = dma_fixed_map_page, + .unmap_page = dma_fixed_unmap_page, }; static void cell_dma_dev_setup_fixed(struct device *dev); @@ -1054,10 +1053,7 @@ static int __init cell_iommu_fixed_mapping_init(void) } /* We must have dma-ranges properties for fixed mapping to work */ - for (np = NULL; (np = of_find_all_nodes(np));) { - if (of_find_property(np, "dma-ranges", NULL)) - break; - } + np = of_find_node_with_property(NULL, "dma-ranges"); of_node_put(np); if (!np) { diff --git a/arch/powerpc/platforms/cell/qpace_setup.c b/arch/powerpc/platforms/cell/qpace_setup.c new file mode 100644 index 00000000000..be84e6a16b3 --- /dev/null +++ b/arch/powerpc/platforms/cell/qpace_setup.c @@ -0,0 +1,152 @@ +/* + * linux/arch/powerpc/platforms/cell/qpace_setup.c + * + * Copyright (C) 1995 Linus Torvalds + * Adapted from 'alpha' version by Gary Thomas + * Modified by Cort Dougan (cort@cs.nmt.edu) + * Modified by PPC64 Team, IBM Corp + * Modified by Cell Team, IBM Deutschland Entwicklung GmbH + * Modified by Benjamin Krill <ben@codiert.org>, IBM Corp. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/console.h> +#include <linux/of_platform.h> + +#include <asm/mmu.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/kexec.h> +#include <asm/pgtable.h> +#include <asm/prom.h> +#include <asm/rtas.h> +#include <asm/dma.h> +#include <asm/machdep.h> +#include <asm/time.h> +#include <asm/cputable.h> +#include <asm/irq.h> +#include <asm/spu.h> +#include <asm/spu_priv1.h> +#include <asm/udbg.h> +#include <asm/cell-regs.h> + +#include "interrupt.h" +#include "pervasive.h" +#include "ras.h" +#include "io-workarounds.h" + +static void qpace_show_cpuinfo(struct seq_file *m) +{ + struct device_node *root; + const char *model = ""; + + root = of_find_node_by_path("/"); + if (root) + model = of_get_property(root, "model", NULL); + seq_printf(m, "machine\t\t: CHRP %s\n", model); + of_node_put(root); +} + +static void qpace_progress(char *s, unsigned short hex) +{ + printk("*** %04x : %s\n", hex, s ? s : ""); +} + +static int __init qpace_publish_devices(void) +{ + int node; + + /* Publish OF platform devices for southbridge IOs */ + of_platform_bus_probe(NULL, NULL, NULL); + + /* There is no device for the MIC memory controller, thus we create + * a platform device for it to attach the EDAC driver to. + */ + for_each_online_node(node) { + if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL) + continue; + platform_device_register_simple("cbe-mic", node, NULL, 0); + } + + return 0; +} +machine_subsys_initcall(qpace, qpace_publish_devices); + +extern int qpace_notify(struct device *dev) +{ + /* set dma_ops for of_platform bus */ + if (dev->bus && dev->bus->name + && !strcmp(dev->bus->name, "of_platform")) + set_dma_ops(dev, &dma_direct_ops); + + return 0; +} + +static void __init qpace_setup_arch(void) +{ +#ifdef CONFIG_SPU_BASE + spu_priv1_ops = &spu_priv1_mmio_ops; + spu_management_ops = &spu_management_of_ops; +#endif + + cbe_regs_init(); + +#ifdef CONFIG_CBE_RAS + cbe_ras_init(); +#endif + +#ifdef CONFIG_SMP + smp_init_cell(); +#endif + + /* init to some ~sane value until calibrate_delay() runs */ + loops_per_jiffy = 50000000; + + cbe_pervasive_init(); +#ifdef CONFIG_DUMMY_CONSOLE + conswitchp = &dummy_con; +#endif + + /* set notifier function */ + platform_notify = &qpace_notify; +} + +static int __init qpace_probe(void) +{ + unsigned long root = of_get_flat_dt_root(); + + if (!of_flat_dt_is_compatible(root, "IBM,QPACE")) + return 0; + + hpte_init_native(); + + return 1; +} + +define_machine(qpace) { + .name = "QPACE", + .probe = qpace_probe, + .setup_arch = qpace_setup_arch, + .show_cpuinfo = qpace_show_cpuinfo, + .restart = rtas_restart, + .power_off = rtas_power_off, + .halt = rtas_halt, + .get_boot_time = rtas_get_boot_time, + .calibrate_decr = generic_calibrate_decr, + .progress = qpace_progress, + .init_IRQ = iic_init_IRQ, +#ifdef CONFIG_KEXEC + .machine_kexec = default_machine_kexec, + .machine_kexec_prepare = default_machine_kexec_prepare, + .machine_crash_shutdown = default_machine_crash_shutdown, +#endif +}; diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index 2a14b052abc..7b4cefa2199 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -13,11 +13,13 @@ #include <linux/kernel.h> #include <linux/smp.h> #include <linux/reboot.h> +#include <linux/kexec.h> +#include <linux/crash_dump.h> +#include <asm/kexec.h> #include <asm/reg.h> #include <asm/io.h> #include <asm/prom.h> -#include <asm/kexec.h> #include <asm/machdep.h> #include <asm/rtas.h> #include <asm/cell-regs.h> @@ -111,9 +113,8 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order) int ret = -ENOMEM; unsigned long addr; -#ifdef CONFIG_CRASH_DUMP - rtas_call(ptcal_stop_tok, 1, 1, NULL, nid); -#endif + if (is_kdump_kernel()) + rtas_call(ptcal_stop_tok, 1, 1, NULL, nid); area = kmalloc(sizeof(*area), GFP_KERNEL); if (!area) diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c index ab721b50fbb..59305369f6b 100644 --- a/arch/powerpc/platforms/cell/setup.c +++ b/arch/powerpc/platforms/cell/setup.c @@ -35,7 +35,6 @@ #include <asm/mmu.h> #include <asm/processor.h> #include <asm/io.h> -#include <asm/kexec.h> #include <asm/pgtable.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -289,9 +288,4 @@ define_machine(cell) { .progress = cell_progress, .init_IRQ = cell_init_irq, .pci_setup_phb = cell_setup_phb, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif }; diff --git a/arch/powerpc/platforms/cell/smp.c b/arch/powerpc/platforms/cell/smp.c index efb3964457b..9046803c827 100644 --- a/arch/powerpc/platforms/cell/smp.c +++ b/arch/powerpc/platforms/cell/smp.c @@ -54,8 +54,8 @@ #endif /* - * The primary thread of each non-boot processor is recorded here before - * smp init. + * The Primary thread of each non-boot processor was started from the OF client + * interface by prom_hold_cpus and is spinning on secondary_hold_spinloop. */ static cpumask_t of_spin_map; @@ -129,10 +129,15 @@ static int __init smp_iic_probe(void) return cpus_weight(cpu_possible_map); } -static void __devinit smp_iic_setup_cpu(int cpu) +static void __devinit smp_cell_setup_cpu(int cpu) { if (cpu != boot_cpuid) iic_setup_cpu(); + + /* + * change default DABRX to allow user watchpoints + */ + mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER); } static DEFINE_SPINLOCK(timebase_lock); @@ -192,7 +197,7 @@ static struct smp_ops_t bpa_iic_smp_ops = { .message_pass = smp_iic_message_pass, .probe = smp_iic_probe, .kick_cpu = smp_cell_kick_cpu, - .setup_cpu = smp_iic_setup_cpu, + .setup_cpu = smp_cell_setup_cpu, .cpu_bootable = smp_cell_cpu_bootable, }; @@ -208,11 +213,7 @@ void __init smp_init_cell(void) /* Mark threads which are still spinning in hold loops. */ if (cpu_has_feature(CPU_FTR_SMT)) { for_each_present_cpu(i) { - if (i % 2 == 0) - /* - * Even-numbered logical cpus correspond to - * primary threads. - */ + if (cpu_thread_in_core(i) == 0) cpu_set(i, of_spin_map); } } else { diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index 010a51f5979..7106b63d401 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -273,12 +273,10 @@ spufs_mem_mmap_fault(struct vm_area_struct *vma, struct vm_fault *vmf) return VM_FAULT_NOPAGE; if (ctx->state == SPU_STATE_SAVED) { - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - & ~_PAGE_NO_CACHE); + vma->vm_page_prot = pgprot_cached(vma->vm_page_prot); pfn = vmalloc_to_pfn(ctx->csa.lscsa->ls + offset); } else { - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE); + vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot); pfn = (ctx->spu->local_store_phys + offset) >> PAGE_SHIFT; } vm_insert_pfn(vma, address, pfn); @@ -338,8 +336,7 @@ static int spufs_mem_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE); + vma->vm_page_prot = pgprot_noncached_wc(vma->vm_page_prot); vma->vm_ops = &spufs_mem_mmap_vmops; return 0; @@ -390,6 +387,9 @@ static int spufs_ps_fault(struct vm_area_struct *vma, if (offset >= ps_size) return VM_FAULT_SIGBUS; + if (fatal_signal_pending(current)) + return VM_FAULT_SIGBUS; + /* * Because we release the mmap_sem, the context may be destroyed while * we're in spu_wait. Grab an extra reference so it isn't destroyed @@ -449,8 +449,7 @@ static int spufs_cntl_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_cntl_mmap_vmops; return 0; @@ -548,6 +547,11 @@ spufs_regs_read(struct file *file, char __user *buffer, int ret; struct spu_context *ctx = file->private_data; + /* pre-check for file position: if we'd return EOF, there's no point + * causing a deschedule */ + if (*pos >= sizeof(ctx->csa.lscsa->gprs)) + return 0; + ret = spu_acquire_saved(ctx); if (ret) return ret; @@ -1147,8 +1151,7 @@ static int spufs_signal1_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_signal1_mmap_vmops; return 0; @@ -1284,8 +1287,7 @@ static int spufs_signal2_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_signal2_mmap_vmops; return 0; @@ -1406,8 +1408,7 @@ static int spufs_mss_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_mss_mmap_vmops; return 0; @@ -1468,8 +1469,7 @@ static int spufs_psmap_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_psmap_mmap_vmops; return 0; @@ -1528,8 +1528,7 @@ static int spufs_mfc_mmap(struct file *file, struct vm_area_struct *vma) return -EINVAL; vma->vm_flags |= VM_IO | VM_PFNMAP; - vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) - | _PAGE_NO_CACHE | _PAGE_GUARDED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); vma->vm_ops = &spufs_mfc_mmap_vmops; return 0; @@ -2426,38 +2425,49 @@ static inline int spufs_switch_log_avail(struct spu_context *ctx) static int spufs_switch_log_open(struct inode *inode, struct file *file) { struct spu_context *ctx = SPUFS_I(inode)->i_ctx; + int rc; + + rc = spu_acquire(ctx); + if (rc) + return rc; - /* - * We (ab-)use the mapping_lock here because it serves the similar - * purpose for synchronizing open/close elsewhere. Maybe it should - * be renamed eventually. - */ - mutex_lock(&ctx->mapping_lock); if (ctx->switch_log) { - spin_lock(&ctx->switch_log->lock); - ctx->switch_log->head = 0; - ctx->switch_log->tail = 0; - spin_unlock(&ctx->switch_log->lock); - } else { - /* - * We allocate the switch log data structures on first open. - * They will never be free because we assume a context will - * be traced until it goes away. - */ - ctx->switch_log = kzalloc(sizeof(struct switch_log) + - SWITCH_LOG_BUFSIZE * sizeof(struct switch_log_entry), - GFP_KERNEL); - if (!ctx->switch_log) - goto out; - spin_lock_init(&ctx->switch_log->lock); - init_waitqueue_head(&ctx->switch_log->wait); + rc = -EBUSY; + goto out; + } + + ctx->switch_log = kmalloc(sizeof(struct switch_log) + + SWITCH_LOG_BUFSIZE * sizeof(struct switch_log_entry), + GFP_KERNEL); + + if (!ctx->switch_log) { + rc = -ENOMEM; + goto out; } - mutex_unlock(&ctx->mapping_lock); + + ctx->switch_log->head = ctx->switch_log->tail = 0; + init_waitqueue_head(&ctx->switch_log->wait); + rc = 0; + +out: + spu_release(ctx); + return rc; +} + +static int spufs_switch_log_release(struct inode *inode, struct file *file) +{ + struct spu_context *ctx = SPUFS_I(inode)->i_ctx; + int rc; + + rc = spu_acquire(ctx); + if (rc) + return rc; + + kfree(ctx->switch_log); + ctx->switch_log = NULL; + spu_release(ctx); return 0; - out: - mutex_unlock(&ctx->mapping_lock); - return -ENOMEM; } static int switch_log_sprint(struct spu_context *ctx, char *tbuf, int n) @@ -2485,42 +2495,54 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf, if (!buf || len < 0) return -EINVAL; + error = spu_acquire(ctx); + if (error) + return error; + while (cnt < len) { char tbuf[128]; int width; - if (file->f_flags & O_NONBLOCK) { - if (spufs_switch_log_used(ctx) <= 0) - return cnt ? cnt : -EAGAIN; - } else { - /* Wait for data in buffer */ - error = wait_event_interruptible(ctx->switch_log->wait, - spufs_switch_log_used(ctx) > 0); - if (error) + if (spufs_switch_log_used(ctx) == 0) { + if (cnt > 0) { + /* If there's data ready to go, we can + * just return straight away */ + break; + + } else if (file->f_flags & O_NONBLOCK) { + error = -EAGAIN; break; - } - spin_lock(&ctx->switch_log->lock); - if (ctx->switch_log->head == ctx->switch_log->tail) { - /* multiple readers race? */ - spin_unlock(&ctx->switch_log->lock); - continue; + } else { + /* spufs_wait will drop the mutex and + * re-acquire, but since we're in read(), the + * file cannot be _released (and so + * ctx->switch_log is stable). + */ + error = spufs_wait(ctx->switch_log->wait, + spufs_switch_log_used(ctx) > 0); + + /* On error, spufs_wait returns without the + * state mutex held */ + if (error) + return error; + + /* We may have had entries read from underneath + * us while we dropped the mutex in spufs_wait, + * so re-check */ + if (spufs_switch_log_used(ctx) == 0) + continue; + } } width = switch_log_sprint(ctx, tbuf, sizeof(tbuf)); - if (width < len) { + if (width < len) ctx->switch_log->tail = (ctx->switch_log->tail + 1) % SWITCH_LOG_BUFSIZE; - } - - spin_unlock(&ctx->switch_log->lock); - - /* - * If the record is greater than space available return - * partial buffer (so far) - */ - if (width >= len) + else + /* If the record is greater than space available return + * partial buffer (so far) */ break; error = copy_to_user(buf + cnt, tbuf, width); @@ -2529,6 +2551,8 @@ static ssize_t spufs_switch_log_read(struct file *file, char __user *buf, cnt += width; } + spu_release(ctx); + return cnt == 0 ? error : cnt; } @@ -2537,29 +2561,41 @@ static unsigned int spufs_switch_log_poll(struct file *file, poll_table *wait) struct inode *inode = file->f_path.dentry->d_inode; struct spu_context *ctx = SPUFS_I(inode)->i_ctx; unsigned int mask = 0; + int rc; poll_wait(file, &ctx->switch_log->wait, wait); + rc = spu_acquire(ctx); + if (rc) + return rc; + if (spufs_switch_log_used(ctx) > 0) mask |= POLLIN; + spu_release(ctx); + return mask; } static const struct file_operations spufs_switch_log_fops = { - .owner = THIS_MODULE, - .open = spufs_switch_log_open, - .read = spufs_switch_log_read, - .poll = spufs_switch_log_poll, + .owner = THIS_MODULE, + .open = spufs_switch_log_open, + .read = spufs_switch_log_read, + .poll = spufs_switch_log_poll, + .release = spufs_switch_log_release, }; +/** + * Log a context switch event to a switch log reader. + * + * Must be called with ctx->state_mutex held. + */ void spu_switch_log_notify(struct spu *spu, struct spu_context *ctx, u32 type, u32 val) { if (!ctx->switch_log) return; - spin_lock(&ctx->switch_log->lock); if (spufs_switch_log_avail(ctx) > 1) { struct switch_log_entry *p; @@ -2573,7 +2609,6 @@ void spu_switch_log_notify(struct spu *spu, struct spu_context *ctx, ctx->switch_log->head = (ctx->switch_log->head + 1) % SWITCH_LOG_BUFSIZE; } - spin_unlock(&ctx->switch_log->lock); wake_up(&ctx->switch_log->wait); } diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c index 2c8b8091250..6296bfd9cb0 100644 --- a/arch/powerpc/platforms/cell/spufs/inode.c +++ b/arch/powerpc/platforms/cell/spufs/inode.c @@ -95,8 +95,8 @@ spufs_new_inode(struct super_block *sb, int mode) goto out; inode->i_mode = mode; - inode->i_uid = current->fsuid; - inode->i_gid = current->fsgid; + inode->i_uid = current_fsuid(); + inode->i_gid = current_fsgid(); inode->i_blocks = 0; inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME; out: @@ -298,8 +298,8 @@ spufs_mkdir(struct inode *dir, struct dentry *dentry, unsigned int flags, d_instantiate(dentry, inode); dget(dentry); - dir->i_nlink++; - dentry->d_inode->i_nlink++; + inc_nlink(dir); + inc_nlink(dentry->d_inode); goto out; out_free_ctx: @@ -323,7 +323,7 @@ static int spufs_context_open(struct dentry *dentry, struct vfsmount *mnt) goto out; } - filp = dentry_open(dentry, mnt, O_RDONLY); + filp = dentry_open(dentry, mnt, O_RDONLY, current_cred()); if (IS_ERR(filp)) { put_unused_fd(ret); ret = PTR_ERR(filp); @@ -496,6 +496,8 @@ spufs_create_context(struct inode *inode, struct dentry *dentry, ret = spufs_context_open(dget(dentry), mntget(mnt)); if (ret < 0) { WARN_ON(spufs_rmdir(inode, dentry)); + if (affinity) + mutex_unlock(&gang->aff_mutex); mutex_unlock(&inode->i_mutex); spu_forget(SPUFS_I(dentry->d_inode)->i_ctx); goto out; @@ -538,8 +540,8 @@ spufs_mkgang(struct inode *dir, struct dentry *dentry, int mode) inode->i_fop = &simple_dir_operations; d_instantiate(dentry, inode); - dir->i_nlink++; - dentry->d_inode->i_nlink++; + inc_nlink(dir); + inc_nlink(dentry->d_inode); return ret; out_iput: @@ -560,7 +562,7 @@ static int spufs_gang_open(struct dentry *dentry, struct vfsmount *mnt) goto out; } - filp = dentry_open(dentry, mnt, O_RDONLY); + filp = dentry_open(dentry, mnt, O_RDONLY, current_cred()); if (IS_ERR(filp)) { put_unused_fd(ret); ret = PTR_ERR(filp); @@ -755,6 +757,7 @@ spufs_create_root(struct super_block *sb, void *data) inode->i_op = &simple_dir_inode_operations; inode->i_fop = &simple_dir_operations; SPUFS_I(inode)->i_ctx = NULL; + inc_nlink(inode); ret = -EINVAL; if (!spufs_parse_options(sb, data, inode)) diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c index c9bb7cfd3dc..c58bd36b0c5 100644 --- a/arch/powerpc/platforms/cell/spufs/run.c +++ b/arch/powerpc/platforms/cell/spufs/run.c @@ -249,6 +249,7 @@ static int spu_run_fini(struct spu_context *ctx, u32 *npc, spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED); clear_bit(SPU_SCHED_SPU_RUN, &ctx->sched_flags); + spu_switch_log_notify(NULL, ctx, SWITCH_LOG_EXIT, *status); spu_release(ctx); if (signal_pending(current)) @@ -417,8 +418,6 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event) ret = spu_run_fini(ctx, npc, &status); spu_yield(ctx); - spu_switch_log_notify(NULL, ctx, SWITCH_LOG_EXIT, status); - if ((status & SPU_STATUS_STOPPED_BY_STOP) && (((status >> SPU_STOP_STATUS_SHIFT) & 0x3f00) == 0x2100)) ctx->stats.libassist++; diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c index 67595bc380d..2ad914c4749 100644 --- a/arch/powerpc/platforms/cell/spufs/sched.c +++ b/arch/powerpc/platforms/cell/spufs/sched.c @@ -312,6 +312,15 @@ static struct spu *aff_ref_location(struct spu_context *ctx, int mem_aff, */ node = cpu_to_node(raw_smp_processor_id()); for (n = 0; n < MAX_NUMNODES; n++, node++) { + /* + * "available_spus" counts how many spus are not potentially + * going to be used by other affinity gangs whose reference + * context is already in place. Although this code seeks to + * avoid having affinity gangs with a summed amount of + * contexts bigger than the amount of spus in the node, + * this may happen sporadically. In this case, available_spus + * becomes negative, which is harmless. + */ int available_spus; node = (node < MAX_NUMNODES) ? node : 0; @@ -321,12 +330,10 @@ static struct spu *aff_ref_location(struct spu_context *ctx, int mem_aff, available_spus = 0; mutex_lock(&cbe_spu_info[node].list_mutex); list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) { - if (spu->ctx && spu->ctx->gang - && spu->ctx->aff_offset == 0) - available_spus -= - (spu->ctx->gang->contexts - 1); - else - available_spus++; + if (spu->ctx && spu->ctx->gang && !spu->ctx->aff_offset + && spu->ctx->gang->aff_ref_spu) + available_spus -= spu->ctx->gang->contexts; + available_spus++; } if (available_spus < ctx->gang->contexts) { mutex_unlock(&cbe_spu_info[node].list_mutex); @@ -437,6 +444,11 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx) atomic_dec(&cbe_spu_info[spu->node].reserved_spus); if (ctx->gang) + /* + * If ctx->gang->aff_sched_count is positive, SPU affinity is + * being considered in this gang. Using atomic_dec_if_positive + * allow us to skip an explicit check for affinity in this gang + */ atomic_dec_if_positive(&ctx->gang->aff_sched_count); spu_switch_notify(spu, NULL); diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h index 8ae8ef9dfc2..15c62d3ca12 100644 --- a/arch/powerpc/platforms/cell/spufs/spufs.h +++ b/arch/powerpc/platforms/cell/spufs/spufs.h @@ -65,7 +65,6 @@ enum { }; struct switch_log { - spinlock_t lock; wait_queue_head_t wait; unsigned long head; unsigned long tail; diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c index 92d20e993ed..d0b1f3f4d9c 100644 --- a/arch/powerpc/platforms/cell/spufs/sputrace.c +++ b/arch/powerpc/platforms/cell/spufs/sputrace.c @@ -40,6 +40,7 @@ static DECLARE_WAIT_QUEUE_HEAD(sputrace_wait); static ktime_t sputrace_start; static unsigned long sputrace_head, sputrace_tail; static struct sputrace *sputrace_log; +static int sputrace_logging; static int sputrace_used(void) { @@ -79,6 +80,11 @@ static ssize_t sputrace_read(struct file *file, char __user *buf, char tbuf[128]; int width; + /* If we have data ready to return, don't block waiting + * for more */ + if (cnt > 0 && sputrace_used() == 0) + break; + error = wait_event_interruptible(sputrace_wait, sputrace_used() > 0); if (error) @@ -109,24 +115,49 @@ static ssize_t sputrace_read(struct file *file, char __user *buf, static int sputrace_open(struct inode *inode, struct file *file) { + int rc; + spin_lock(&sputrace_lock); + if (sputrace_logging) { + rc = -EBUSY; + goto out; + } + + sputrace_logging = 1; sputrace_head = sputrace_tail = 0; sputrace_start = ktime_get(); + rc = 0; + +out: spin_unlock(&sputrace_lock); + return rc; +} +static int sputrace_release(struct inode *inode, struct file *file) +{ + spin_lock(&sputrace_lock); + sputrace_logging = 0; + spin_unlock(&sputrace_lock); return 0; } static const struct file_operations sputrace_fops = { - .owner = THIS_MODULE, - .open = sputrace_open, - .read = sputrace_read, + .owner = THIS_MODULE, + .open = sputrace_open, + .read = sputrace_read, + .release = sputrace_release, }; static void sputrace_log_item(const char *name, struct spu_context *ctx, struct spu *spu) { spin_lock(&sputrace_lock); + + if (!sputrace_logging) { + spin_unlock(&sputrace_lock); + return; + } + if (sputrace_avail() > 1) { struct sputrace *t = sputrace_log + sputrace_head; @@ -232,6 +263,7 @@ static void __exit sputrace_exit(void) remove_proc_entry("sputrace", NULL); kfree(sputrace_log); + marker_synchronize_unregister(); } module_init(sputrace_init); diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c index 49c87769b1f..c23617c6baf 100644 --- a/arch/powerpc/platforms/cell/spufs/syscalls.c +++ b/arch/powerpc/platforms/cell/spufs/syscalls.c @@ -69,9 +69,9 @@ static long do_spu_create(const char __user *pathname, unsigned int flags, if (!IS_ERR(tmp)) { struct nameidata nd; - ret = path_lookup(tmp, LOOKUP_PARENT| - LOOKUP_OPEN|LOOKUP_CREATE, &nd); + ret = path_lookup(tmp, LOOKUP_PARENT, &nd); if (!ret) { + nd.flags |= LOOKUP_OPEN | LOOKUP_CREATE; ret = spufs_create(&nd, flags, mode, neighbor); path_put(&nd.path); } diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c index 768c262b936..f6b0c519d5a 100644 --- a/arch/powerpc/platforms/chrp/pci.c +++ b/arch/powerpc/platforms/chrp/pci.c @@ -141,6 +141,7 @@ hydra_init(void) of_node_put(np); return 0; } + of_node_put(np); Hydra = ioremap(r.start, r.end-r.start); printk("Hydra Mac I/O at %llx\n", (unsigned long long)r.start); printk("Hydra Feature_Control was %x", @@ -198,7 +199,7 @@ static void __init setup_peg2(struct pci_controller *hose, struct device_node *d printk ("RTAS supporting Pegasos OF not found, please upgrade" " your firmware\n"); } - ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS; + ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS); /* keep the reference to the root node */ } @@ -260,13 +261,13 @@ chrp_find_bridges(void) dev->full_name); continue; } - hose->first_busno = bus_range[0]; + hose->first_busno = hose->self_busno = bus_range[0]; hose->last_busno = bus_range[1]; model = of_get_property(dev, "model", NULL); if (model == NULL) model = "<none>"; - if (of_device_is_compatible(dev, "IBM,python")) { + if (strncmp(model, "IBM, Python", 11) == 0) { setup_python(hose, dev); } else if (is_mot || strncmp(model, "Motorola, Grackle", 17) == 0) { diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c index 96d1e4b3c49..054dfe5b8e7 100644 --- a/arch/powerpc/platforms/chrp/time.c +++ b/arch/powerpc/platforms/chrp/time.c @@ -94,12 +94,12 @@ int chrp_set_rtc_time(struct rtc_time *tmarg) chrp_cmos_clock_write((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BIN_TO_BCD(tm.tm_sec); - BIN_TO_BCD(tm.tm_min); - BIN_TO_BCD(tm.tm_hour); - BIN_TO_BCD(tm.tm_mon); - BIN_TO_BCD(tm.tm_mday); - BIN_TO_BCD(tm.tm_year); + tm.tm_sec = bin2bcd(tm.tm_sec); + tm.tm_min = bin2bcd(tm.tm_min); + tm.tm_hour = bin2bcd(tm.tm_hour); + tm.tm_mon = bin2bcd(tm.tm_mon); + tm.tm_mday = bin2bcd(tm.tm_mday); + tm.tm_year = bin2bcd(tm.tm_year); } chrp_cmos_clock_write(tm.tm_sec,RTC_SECONDS); chrp_cmos_clock_write(tm.tm_min,RTC_MINUTES); @@ -136,12 +136,12 @@ void chrp_get_rtc_time(struct rtc_time *tm) } while (sec != chrp_cmos_clock_read(RTC_SECONDS)); if (!(chrp_cmos_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); + sec = bcd2bin(sec); + min = bcd2bin(min); + hour = bcd2bin(hour); + day = bcd2bin(day); + mon = bcd2bin(mon); + year = bcd2bin(year); } if (year < 70) year += 100; diff --git a/arch/powerpc/platforms/embedded6xx/c2k.c b/arch/powerpc/platforms/embedded6xx/c2k.c index d0b25b8c39d..8cab5731850 100644 --- a/arch/powerpc/platforms/embedded6xx/c2k.c +++ b/arch/powerpc/platforms/embedded6xx/c2k.c @@ -20,7 +20,6 @@ #include <linux/seq_file.h> #include <linux/time.h> #include <linux/of.h> -#include <linux/kexec.h> #include <asm/machdep.h> #include <asm/prom.h> @@ -116,10 +115,7 @@ static void c2k_restart(char *cmd) void c2k_show_cpuinfo(struct seq_file *m) { - uint memsize = total_memory; - seq_printf(m, "Vendor\t\t: GEFanuc\n"); - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); seq_printf(m, "coherency\t: %s\n", COHERENCY_SETTING); } @@ -150,9 +146,4 @@ define_machine(c2k) { .get_irq = mv64x60_get_irq, .restart = c2k_restart, .calibrate_decr = generic_calibrate_decr, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif }; diff --git a/arch/powerpc/platforms/embedded6xx/linkstation.c b/arch/powerpc/platforms/embedded6xx/linkstation.c index eb5d74e26fe..2ca7be65c2d 100644 --- a/arch/powerpc/platforms/embedded6xx/linkstation.c +++ b/arch/powerpc/platforms/embedded6xx/linkstation.c @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/initrd.h> #include <linux/mtd/physmap.h> +#include <linux/of_platform.h> #include <asm/time.h> #include <asm/prom.h> @@ -54,6 +55,19 @@ static struct mtd_partition linkstation_physmap_partitions[] = { }, }; +static __initdata struct of_device_id of_bus_ids[] = { + { .type = "soc", }, + { .compatible = "simple-bus", }, + {}, +}; + +static int __init declare_of_platform_devices(void) +{ + of_platform_bus_probe(NULL, of_bus_ids, NULL); + return 0; +} +machine_device_initcall(linkstation, declare_of_platform_devices); + static int __init linkstation_add_bridge(struct device_node *dev) { #ifdef CONFIG_PCI diff --git a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c index 84e2d78b9a6..7a2ba39d781 100644 --- a/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c +++ b/arch/powerpc/platforms/embedded6xx/mpc7448_hpc2.c @@ -164,7 +164,6 @@ static void __init mpc7448_hpc2_init_IRQ(void) void mpc7448_hpc2_show_cpuinfo(struct seq_file *m) { seq_printf(m, "vendor\t\t: Freescale Semiconductor\n"); - seq_printf(m, "machine\t\t: MPC7448hpc2\n"); } void mpc7448_hpc2_restart(char *cmd) diff --git a/arch/powerpc/platforms/embedded6xx/prpmc2800.c b/arch/powerpc/platforms/embedded6xx/prpmc2800.c index 5a19b9a1457..670035f49a6 100644 --- a/arch/powerpc/platforms/embedded6xx/prpmc2800.c +++ b/arch/powerpc/platforms/embedded6xx/prpmc2800.c @@ -19,7 +19,6 @@ #include <asm/prom.h> #include <asm/system.h> #include <asm/time.h> -#include <asm/kexec.h> #include <mm/mmu_decl.h> @@ -119,10 +118,7 @@ static void prpmc2800_restart(char *cmd) void prpmc2800_show_cpuinfo(struct seq_file *m) { - uint memsize = total_memory; - seq_printf(m, "Vendor\t\t: Motorola\n"); - seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); seq_printf(m, "coherency\t: %s\n", PPRPM2800_COHERENCY_SETTING); } @@ -158,9 +154,4 @@ define_machine(prpmc2800){ .get_irq = mv64x60_get_irq, .restart = prpmc2800_restart, .calibrate_decr = generic_calibrate_decr, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif }; diff --git a/arch/powerpc/platforms/iseries/Kconfig b/arch/powerpc/platforms/iseries/Kconfig index 45ffd8e542f..ed3753d8c10 100644 --- a/arch/powerpc/platforms/iseries/Kconfig +++ b/arch/powerpc/platforms/iseries/Kconfig @@ -9,6 +9,7 @@ menu "iSeries device drivers" config VIODASD tristate "iSeries Virtual I/O disk support" + depends on BLOCK help If you are running on an iSeries system and you want to use virtual disks created and managed by OS/400, say Y. diff --git a/arch/powerpc/platforms/iseries/exception.S b/arch/powerpc/platforms/iseries/exception.S index 8ff330d026c..2f581521eb9 100644 --- a/arch/powerpc/platforms/iseries/exception.S +++ b/arch/powerpc/platforms/iseries/exception.S @@ -38,12 +38,13 @@ .globl system_reset_iSeries system_reset_iSeries: + bl .relative_toc mfspr r13,SPRN_SPRG3 /* Get alpaca address */ - LOAD_REG_IMMEDIATE(r23, alpaca) + LOAD_REG_ADDR(r23, alpaca) li r0,ALPACA_SIZE sub r23,r13,r23 divdu r23,r23,r0 /* r23 has cpu number */ - LOAD_REG_IMMEDIATE(r13, paca) + LOAD_REG_ADDR(r13, paca) mulli r0,r23,PACA_SIZE add r13,r13,r0 mtspr SPRN_SPRG3,r13 /* Save it away for the future */ @@ -60,14 +61,14 @@ system_reset_iSeries: mtspr SPRN_CTRLT,r4 /* Spin on __secondary_hold_spinloop until it is updated by the boot cpu. */ -/* In the UP case we'll yeild() later, and we will not access the paca anyway */ +/* In the UP case we'll yield() later, and we will not access the paca anyway */ #ifdef CONFIG_SMP 1: HMT_LOW - LOAD_REG_IMMEDIATE(r23, __secondary_hold_spinloop) + LOAD_REG_ADDR(r23, __secondary_hold_spinloop) ld r23,0(r23) sync - LOAD_REG_IMMEDIATE(r3,current_set) + LOAD_REG_ADDR(r3,current_set) sldi r28,r24,3 /* get current_set[cpu#] */ ldx r3,r3,r28 addi r1,r3,THREAD_SIZE @@ -90,7 +91,7 @@ system_reset_iSeries: lbz r23,PACAPROCSTART(r13) /* Test if this processor * should start */ sync - LOAD_REG_IMMEDIATE(r3,current_set) + LOAD_REG_ADDR(r3,current_set) sldi r28,r24,3 /* get current_set[cpu#] */ ldx r3,r3,r28 addi r1,r3,THREAD_SIZE @@ -255,8 +256,8 @@ hardware_interrupt_iSeries_masked: _INIT_STATIC(__start_initialization_iSeries) /* Clear out the BSS */ - LOAD_REG_IMMEDIATE(r11,__bss_stop) - LOAD_REG_IMMEDIATE(r8,__bss_start) + LOAD_REG_ADDR(r11,__bss_stop) + LOAD_REG_ADDR(r8,__bss_start) sub r11,r11,r8 /* bss size */ addi r11,r11,7 /* round up to an even double word */ rldicl. r11,r11,61,3 /* shift right by 3 */ @@ -267,15 +268,11 @@ _INIT_STATIC(__start_initialization_iSeries) 3: stdu r0,8(r8) bdnz 3b 4: - LOAD_REG_IMMEDIATE(r1,init_thread_union) + LOAD_REG_ADDR(r1,init_thread_union) addi r1,r1,THREAD_SIZE li r0,0 stdu r0,-STACK_FRAME_OVERHEAD(r1) - LOAD_REG_IMMEDIATE(r2,__toc_start) - addi r2,r2,0x4000 - addi r2,r2,0x4000 - bl .iSeries_early_setup bl .early_setup diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c index bb464d1211b..bbe828f1b88 100644 --- a/arch/powerpc/platforms/iseries/iommu.c +++ b/arch/powerpc/platforms/iseries/iommu.c @@ -215,14 +215,15 @@ EXPORT_SYMBOL_GPL(iseries_hv_free); dma_addr_t iseries_hv_map(void *vaddr, size_t size, enum dma_data_direction direction) { - return iommu_map_single(NULL, &vio_iommu_table, vaddr, size, - DMA_32BIT_MASK, direction, NULL); + return iommu_map_page(NULL, &vio_iommu_table, virt_to_page(vaddr), + (unsigned long)vaddr % PAGE_SIZE, size, + DMA_32BIT_MASK, direction, NULL); } void iseries_hv_unmap(dma_addr_t dma_handle, size_t size, enum dma_data_direction direction) { - iommu_unmap_single(&vio_iommu_table, dma_handle, size, direction, NULL); + iommu_unmap_page(&vio_iommu_table, dma_handle, size, direction, NULL); } void __init iommu_vio_init(void) diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c index 731d7b15774..3689c2413d2 100644 --- a/arch/powerpc/platforms/iseries/mf.c +++ b/arch/powerpc/platforms/iseries/mf.c @@ -722,13 +722,13 @@ static int mf_set_rtc(struct rtc_time *tm) day = tm->tm_mday; mon = tm->tm_mon + 1; - BIN_TO_BCD(sec); - BIN_TO_BCD(min); - BIN_TO_BCD(hour); - BIN_TO_BCD(mon); - BIN_TO_BCD(day); - BIN_TO_BCD(y1); - BIN_TO_BCD(y2); + sec = bin2bcd(sec); + min = bin2bcd(min); + hour = bin2bcd(hour); + mon = bin2bcd(mon); + day = bin2bcd(day); + y1 = bin2bcd(y1); + y2 = bin2bcd(y2); memset(ce_time, 0, sizeof(ce_time)); ce_time[3] = 0x41; @@ -777,12 +777,12 @@ static int rtc_set_tm(int rc, u8 *ce_msg, struct rtc_time *tm) u8 day = ce_msg[10]; u8 mon = ce_msg[11]; - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); + sec = bcd2bin(sec); + min = bcd2bin(min); + hour = bcd2bin(hour); + day = bcd2bin(day); + mon = bcd2bin(mon); + year = bcd2bin(year); if (year <= 69) year += 100; diff --git a/arch/powerpc/platforms/maple/setup.c b/arch/powerpc/platforms/maple/setup.c index d4c61c3c966..bfd60e4acce 100644 --- a/arch/powerpc/platforms/maple/setup.c +++ b/arch/powerpc/platforms/maple/setup.c @@ -50,7 +50,6 @@ #include <asm/system.h> #include <asm/pgtable.h> #include <asm/io.h> -#include <asm/kexec.h> #include <asm/pci-bridge.h> #include <asm/iommu.h> #include <asm/machdep.h> @@ -335,9 +334,4 @@ define_machine(maple) { .calibrate_decr = generic_calibrate_decr, .progress = maple_progress, .power_save = power4_idle, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif }; diff --git a/arch/powerpc/platforms/maple/time.c b/arch/powerpc/platforms/maple/time.c index 53bca132fb4..eac569dee27 100644 --- a/arch/powerpc/platforms/maple/time.c +++ b/arch/powerpc/platforms/maple/time.c @@ -68,12 +68,12 @@ void maple_get_rtc_time(struct rtc_time *tm) if (!(maple_clock_read(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BCD_TO_BIN(tm->tm_sec); - BCD_TO_BIN(tm->tm_min); - BCD_TO_BIN(tm->tm_hour); - BCD_TO_BIN(tm->tm_mday); - BCD_TO_BIN(tm->tm_mon); - BCD_TO_BIN(tm->tm_year); + tm->tm_sec = bcd2bin(tm->tm_sec); + tm->tm_min = bcd2bin(tm->tm_min); + tm->tm_hour = bcd2bin(tm->tm_hour); + tm->tm_mday = bcd2bin(tm->tm_mday); + tm->tm_mon = bcd2bin(tm->tm_mon); + tm->tm_year = bcd2bin(tm->tm_year); } if ((tm->tm_year + 1900) < 1970) tm->tm_year += 100; @@ -104,12 +104,12 @@ int maple_set_rtc_time(struct rtc_time *tm) year = tm->tm_year; if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BIN_TO_BCD(sec); - BIN_TO_BCD(min); - BIN_TO_BCD(hour); - BIN_TO_BCD(mon); - BIN_TO_BCD(mday); - BIN_TO_BCD(year); + sec = bin2bcd(sec); + min = bin2bcd(min); + hour = bin2bcd(hour); + mon = bin2bcd(mon); + mday = bin2bcd(mday); + year = bin2bcd(year); } maple_clock_write(sec, RTC_SECONDS); maple_clock_write(min, RTC_MINUTES); diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile index be60d64be7a..50f16939255 100644 --- a/arch/powerpc/platforms/powermac/Makefile +++ b/arch/powerpc/platforms/powermac/Makefile @@ -1,6 +1,6 @@ CFLAGS_bootx_init.o += -fPIC -ifdef CONFIG_FTRACE +ifdef CONFIG_FUNCTION_TRACER # Do not trace early boot code CFLAGS_REMOVE_bootx_init.o = -pg -mno-sched-epilog endif diff --git a/arch/powerpc/platforms/powermac/cpufreq_32.c b/arch/powerpc/platforms/powermac/cpufreq_32.c index 792d3ce8112..65c585b8b00 100644 --- a/arch/powerpc/platforms/powermac/cpufreq_32.c +++ b/arch/powerpc/platforms/powermac/cpufreq_32.c @@ -310,7 +310,7 @@ static int pmu_set_cpu_speed(int low_speed) _set_L3CR(save_l3cr); /* Restore userland MMU context */ - set_context(current->active_mm->context.id, current->active_mm->pgd); + switch_mmu_context(NULL, current->active_mm); #ifdef DEBUG_FREQ printk(KERN_DEBUG "HID1, after: %x\n", mfspr(SPRN_HID1)); diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index 5169ecc3712..e6c0040ee79 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -2677,7 +2677,7 @@ static void __init probe_one_macio(const char *name, const char *compat, int typ macio_chips[i].of_node = node; macio_chips[i].type = type; macio_chips[i].base = base; - macio_chips[i].flags = MACIO_FLAG_SCCB_ON | MACIO_FLAG_SCCB_ON; + macio_chips[i].flags = MACIO_FLAG_SCCA_ON | MACIO_FLAG_SCCB_ON; macio_chips[i].name = macio_names[type]; revp = of_get_property(node, "revision-id", NULL); if (revp) diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c index bcf50d7056e..54b7b76ed4f 100644 --- a/arch/powerpc/platforms/powermac/pci.c +++ b/arch/powerpc/platforms/powermac/pci.c @@ -729,7 +729,7 @@ static void __init setup_bandit(struct pci_controller *hose, static int __init setup_uninorth(struct pci_controller *hose, struct resource *addr) { - ppc_pci_flags |= PPC_PCI_REASSIGN_ALL_BUS; + ppc_pci_add_flags(PPC_PCI_REASSIGN_ALL_BUS); has_uninorth = 1; hose->ops = ¯isc_pci_ops; hose->cfg_addr = ioremap(addr->start + 0x800000, 0x1000); @@ -996,7 +996,7 @@ void __init pmac_pci_init(void) struct device_node *np, *root; struct device_node *ht = NULL; - ppc_pci_flags = PPC_PCI_CAN_SKIP_ISA_ALIGN; + ppc_pci_set_flags(PPC_PCI_CAN_SKIP_ISA_ALIGN); root = of_find_node_by_path("/"); if (root == NULL) { @@ -1055,7 +1055,7 @@ void __init pmac_pci_init(void) * some offset between bus number and domains for now when we * assign all busses should help for now */ - if (ppc_pci_flags & PPC_PCI_REASSIGN_ALL_BUS) + if (ppc_pci_has_flag(PPC_PCI_REASSIGN_ALL_BUS)) pcibios_assign_bus_offset = 0x10; #endif } diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 82c14d203d8..9b78f5300c2 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -60,7 +60,6 @@ #include <asm/system.h> #include <asm/pgtable.h> #include <asm/io.h> -#include <asm/kexec.h> #include <asm/pci-bridge.h> #include <asm/ohare.h> #include <asm/mediabay.h> @@ -310,9 +309,7 @@ static void __init pmac_setup_arch(void) } /* See if newworld or oldworld */ - for (ic = NULL; (ic = of_find_all_nodes(ic)) != NULL; ) - if (of_get_property(ic, "interrupt-controller", NULL)) - break; + ic = of_find_node_with_property(NULL, "interrupt-controller"); if (ic) { pmac_newworld = 1; of_node_put(ic); @@ -740,11 +737,6 @@ define_machine(powermac) { .pci_probe_mode = pmac_pci_probe_mode, .power_save = power4_idle, .enable_pmcs = power4_enable_pmcs, -#ifdef CONFIG_KEXEC - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, -#endif #endif /* CONFIG_PPC64 */ #ifdef CONFIG_PPC32 .pcibios_enable_device_hook = pmac_pci_enable_device_hook, diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S index adee28da353..1c2802fabd5 100644 --- a/arch/powerpc/platforms/powermac/sleep.S +++ b/arch/powerpc/platforms/powermac/sleep.S @@ -17,6 +17,7 @@ #include <asm/cache.h> #include <asm/thread_info.h> #include <asm/asm-offsets.h> +#include <asm/mmu.h> #define MAGIC 0x4c617273 /* 'Lars' */ @@ -323,7 +324,7 @@ grackle_wake_up: lwz r4,SL_IBAT3+4(r1) mtibatl 3,r4 -BEGIN_FTR_SECTION +BEGIN_MMU_FTR_SECTION li r4,0 mtspr SPRN_DBAT4U,r4 mtspr SPRN_DBAT4L,r4 @@ -341,7 +342,7 @@ BEGIN_FTR_SECTION mtspr SPRN_IBAT6L,r4 mtspr SPRN_IBAT7U,r4 mtspr SPRN_IBAT7L,r4 -END_FTR_SECTION_IFSET(CPU_FTR_HAS_HIGH_BATS) +END_MMU_FTR_SECTION_IFSET(MMU_FTR_USE_HIGH_BATS) /* Flush all TLBs */ lis r4,0x1000 diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index 4ae3d00e0bd..6b0711c15ec 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -739,7 +739,7 @@ static void __init smp_core99_setup(int ncpus) /* XXX should get this from reg properties */ for (i = 1; i < ncpus; ++i) - smp_hw_index[i] = i; + set_hard_smp_processor_id(i, i); } #endif @@ -787,7 +787,7 @@ static void __devinit smp_core99_kick_cpu(int nr) { unsigned int save_vector; unsigned long target, flags; - unsigned int *vector = (unsigned int *)(KERNELBASE+0x100); + unsigned int *vector = (unsigned int *)(PAGE_OFFSET+0x100); if (nr < 0 || nr > 3) return; @@ -801,7 +801,7 @@ static void __devinit smp_core99_kick_cpu(int nr) save_vector = *vector; /* Setup fake reset vector that does - * b __secondary_start_pmac_0 + nr*8 - KERNELBASE + * b __secondary_start_pmac_0 + nr*8 */ target = (unsigned long) __secondary_start_pmac_0 + nr * 8; patch_branch(vector, target, BRANCH_SET_LINK); diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c index bbbefd64ab5..59eb840d8ce 100644 --- a/arch/powerpc/platforms/powermac/time.c +++ b/arch/powerpc/platforms/powermac/time.c @@ -93,11 +93,14 @@ static void to_rtc_time(unsigned long now, struct rtc_time *tm) } #endif +#if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU) || \ + defined(CONFIG_PMAC_SMU) static unsigned long from_rtc_time(struct rtc_time *tm) { return mktime(tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday, tm->tm_hour, tm->tm_min, tm->tm_sec); } +#endif #ifdef CONFIG_ADB_CUDA static unsigned long cuda_get_time(void) diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c index ffdd8e963fb..dbc124e0564 100644 --- a/arch/powerpc/platforms/ps3/device-init.c +++ b/arch/powerpc/platforms/ps3/device-init.c @@ -314,11 +314,17 @@ static int __init ps3_setup_vuart_device(enum ps3_match_id match_id, result = ps3_system_bus_device_register(&p->dev); - if (result) + if (result) { pr_debug("%s:%d ps3_system_bus_device_register failed\n", __func__, __LINE__); - + goto fail_device_register; + } pr_debug(" <- %s:%d\n", __func__, __LINE__); + return 0; + +fail_device_register: + kfree(p); + pr_debug(" <- %s:%d fail\n", __func__, __LINE__); return result; } @@ -463,11 +469,17 @@ static int __init ps3_register_sound_devices(void) result = ps3_system_bus_device_register(&p->dev); - if (result) + if (result) { pr_debug("%s:%d ps3_system_bus_device_register failed\n", __func__, __LINE__); - + goto fail_device_register; + } pr_debug(" <- %s:%d\n", __func__, __LINE__); + return 0; + +fail_device_register: + kfree(p); + pr_debug(" <- %s:%d failed\n", __func__, __LINE__); return result; } @@ -485,17 +497,24 @@ static int __init ps3_register_graphics_devices(void) if (!p) return -ENOMEM; - p->dev.match_id = PS3_MATCH_ID_GRAPHICS; - p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB; + p->dev.match_id = PS3_MATCH_ID_GPU; + p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB; p->dev.dev_type = PS3_DEVICE_TYPE_IOC0; result = ps3_system_bus_device_register(&p->dev); - if (result) + if (result) { pr_debug("%s:%d ps3_system_bus_device_register failed\n", __func__, __LINE__); + goto fail_device_register; + } pr_debug(" <- %s:%d\n", __func__, __LINE__); + return 0; + +fail_device_register: + kfree(p); + pr_debug(" <- %s:%d failed\n", __func__, __LINE__); return result; } diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c index 3a58ffabccd..a4d49dd9e8a 100644 --- a/arch/powerpc/platforms/ps3/mm.c +++ b/arch/powerpc/platforms/ps3/mm.c @@ -649,7 +649,7 @@ static int dma_sb_region_create(struct ps3_dma_region *r) { int result; - pr_info(" -> %s:%d:\n", __func__, __LINE__); + DBG(" -> %s:%d:\n", __func__, __LINE__); BUG_ON(!r); diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c index 77bc330263c..35f3e85cf60 100644 --- a/arch/powerpc/platforms/ps3/setup.c +++ b/arch/powerpc/platforms/ps3/setup.c @@ -23,7 +23,6 @@ #include <linux/fs.h> #include <linux/root_dev.h> #include <linux/console.h> -#include <linux/kexec.h> #include <linux/bootmem.h> #include <asm/machdep.h> @@ -42,6 +41,10 @@ #define DBG pr_debug #endif +/* mutex synchronizing GPU accesses and video mode changes */ +DEFINE_MUTEX(ps3_gpu_mutex); +EXPORT_SYMBOL_GPL(ps3_gpu_mutex); + #if !defined(CONFIG_SMP) static void smp_send_stop(void) {} #endif @@ -277,8 +280,5 @@ define_machine(ps3) { .halt = ps3_halt, #if defined(CONFIG_KEXEC) .kexec_cpu_down = ps3_kexec_cpu_down, - .machine_kexec = default_machine_kexec, - .machine_kexec_prepare = default_machine_kexec_prepare, - .machine_crash_shutdown = default_machine_crash_shutdown, #endif }; diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 280ee88cb0b..ee0d2291162 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -31,7 +31,7 @@ #include "platform.h" static struct device ps3_system_bus = { - .bus_id = "ps3_system", + .init_name = "ps3_system", }; /* FIXME: need device usage counters! */ @@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev) return ps3_open_hv_device_sb(dev); case PS3_MATCH_ID_SOUND: - case PS3_MATCH_ID_GRAPHICS: + case PS3_MATCH_ID_GPU: return ps3_open_hv_device_gpu(dev); case PS3_MATCH_ID_AV_SETTINGS: @@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev) return ps3_close_hv_device_sb(dev); case PS3_MATCH_ID_SOUND: - case PS3_MATCH_ID_GRAPHICS: + case PS3_MATCH_ID_GPU: return ps3_close_hv_device_gpu(dev); case PS3_MATCH_ID_AV_SETTINGS: @@ -356,12 +356,12 @@ static int ps3_system_bus_match(struct device *_dev, if (result) pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n", __func__, __LINE__, - dev->match_id, dev->match_sub_id, dev->core.bus_id, + dev->match_id, dev->match_sub_id, dev_name(&dev->core), drv->match_id, drv->match_sub_id, drv->core.name); else pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n", __func__, __LINE__, - dev->match_id, dev->match_sub_id, dev->core.bus_id, + dev->match_id, dev->match_sub_id, dev_name(&dev->core), drv->match_id, drv->match_sub_id, drv->core.name); return result; @@ -383,9 +383,9 @@ static int ps3_system_bus_probe(struct device *_dev) result = drv->probe(dev); else pr_debug("%s:%d: %s no probe method\n", __func__, __LINE__, - dev->core.bus_id); + dev_name(&dev->core)); - pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id); + pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); return result; } @@ -407,7 +407,7 @@ static int ps3_system_bus_remove(struct device *_dev) dev_dbg(&dev->core, "%s:%d %s: no remove method\n", __func__, __LINE__, drv->core.name); - pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev->core.bus_id); + pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); return result; } @@ -432,7 +432,7 @@ static void ps3_system_bus_shutdown(struct device *_dev) BUG_ON(!drv); dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__, - dev->core.bus_id, drv->core.name); + dev_name(&dev->core), drv->core.name); if (drv->shutdown) drv->shutdown(dev); @@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); - if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id)) + if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id, + dev->match_sub_id)) return -ENOMEM; return 0; } @@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a, char *buf) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); - int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id); + int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id, + dev->match_sub_id); return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; } @@ -555,18 +557,19 @@ static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, } /* Creates TCEs for a user provided buffer. The user buffer must be - * contiguous real kernel storage (not vmalloc). The address of the buffer - * passed here is the kernel (virtual) address of the buffer. The buffer - * need not be page aligned, the dma_addr_t returned will point to the same - * byte within the page as vaddr. + * contiguous real kernel storage (not vmalloc). The address passed here + * comprises a page address and offset into that page. The dma_addr_t + * returned will point to the same byte within the page as was passed in. */ -static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size, - enum dma_data_direction direction, struct dma_attrs *attrs) +static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page, + unsigned long offset, size_t size, enum dma_data_direction direction, + struct dma_attrs *attrs) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); int result; unsigned long bus_addr; + void *ptr = page_address(page) + offset; result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, &bus_addr, @@ -580,15 +583,16 @@ static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size, return bus_addr; } -static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr, - size_t size, - enum dma_data_direction direction, - struct dma_attrs *attrs) +static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction, + struct dma_attrs *attrs) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); int result; unsigned long bus_addr; u64 iopte_flag; + void *ptr = page_address(page) + offset; iopte_flag = IOPTE_M; switch (direction) { @@ -615,7 +619,7 @@ static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr, return bus_addr; } -static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr, +static void ps3_unmap_page(struct device *_dev, dma_addr_t dma_addr, size_t size, enum dma_data_direction direction, struct dma_attrs *attrs) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); @@ -689,21 +693,21 @@ static int ps3_dma_supported(struct device *_dev, u64 mask) static struct dma_mapping_ops ps3_sb_dma_ops = { .alloc_coherent = ps3_alloc_coherent, .free_coherent = ps3_free_coherent, - .map_single = ps3_sb_map_single, - .unmap_single = ps3_unmap_single, .map_sg = ps3_sb_map_sg, .unmap_sg = ps3_sb_unmap_sg, - .dma_supported = ps3_dma_supported + .dma_supported = ps3_dma_supported, + .map_page = ps3_sb_map_page, + .unmap_page = ps3_unmap_page, }; static struct dma_mapping_ops ps3_ioc0_dma_ops = { .alloc_coherent = ps3_alloc_coherent, .free_coherent = ps3_free_coherent, - .map_single = ps3_ioc0_map_single, - .unmap_single = ps3_unmap_single, .map_sg = ps3_ioc0_map_sg, .unmap_sg = ps3_ioc0_unmap_sg, - .dma_supported = ps3_dma_supported + .dma_supported = ps3_dma_supported, + .map_page = ps3_ioc0_map_page, + .unmap_page = ps3_unmap_page, }; /** @@ -740,31 +744,27 @@ int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) switch (dev->dev_type) { case PS3_DEVICE_TYPE_IOC0: dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops; - snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), - "ioc0_%02x", ++dev_ioc0_count); + dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count); break; case PS3_DEVICE_TYPE_SB: dev->core.archdata.dma_ops = &ps3_sb_dma_ops; - snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), - "sb_%02x", ++dev_sb_count); + dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count); break; case PS3_DEVICE_TYPE_VUART: - snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), - "vuart_%02x", ++dev_vuart_count); + dev_set_name(&dev->core, "vuart_%02x", ++dev_vuart_count); break; case PS3_DEVICE_TYPE_LPM: - snprintf(dev->core.bus_id, sizeof(dev->core.bus_id), - "lpm_%02x", ++dev_lpm_count); + dev_set_name(&dev->core, "lpm_%02x", ++dev_lpm_count); break; default: BUG(); }; dev->core.archdata.of_node = NULL; - dev->core.archdata.numa_node = 0; + set_dev_node(&dev->core, 0); - pr_debug("%s:%d add %s\n", __func__, __LINE__, dev->core.bus_id); + pr_debug("%s:%d add %s\n", __func__, __LINE__, dev_name(&dev->core)); result = device_register(&dev->core); return result; diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 97619fd51e3..ddc2a307cd5 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -54,7 +54,7 @@ config PPC_SMLPAR config CMM tristate "Collaborative memory management" - depends on PPC_SMLPAR + depends on PPC_SMLPAR && !CRASH_DUMP default y help Select this option, if you want to enable the kernel interface diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c index 38fe32a7cc7..6567439fe78 100644 --- a/arch/powerpc/platforms/pseries/cmm.c +++ b/arch/powerpc/platforms/pseries/cmm.c @@ -28,6 +28,7 @@ #include <linux/kthread.h> #include <linux/module.h> #include <linux/oom.h> +#include <linux/reboot.h> #include <linux/sched.h> #include <linux/stringify.h> #include <linux/swap.h> @@ -121,7 +122,7 @@ static long cmm_alloc_pages(long nr) npa = (struct cmm_page_array *)__get_free_page(GFP_NOIO | __GFP_NOWARN | __GFP_NORETRY | __GFP_NOMEMALLOC); if (!npa) { - pr_info("%s: Can not allocate new page list\n", __FUNCTION__); + pr_info("%s: Can not allocate new page list\n", __func__); free_page(addr); break; } @@ -138,7 +139,7 @@ static long cmm_alloc_pages(long nr) } if ((rc = plpar_page_set_loaned(__pa(addr)))) { - pr_err("%s: Can not set page to loaned. rc=%ld\n", __FUNCTION__, rc); + pr_err("%s: Can not set page to loaned. rc=%ld\n", __func__, rc); spin_unlock(&cmm_lock); free_page(addr); break; @@ -384,6 +385,26 @@ static void cmm_unregister_sysfs(struct sys_device *sysdev) } /** + * cmm_reboot_notifier - Make sure pages are not still marked as "loaned" + * + **/ +static int cmm_reboot_notifier(struct notifier_block *nb, + unsigned long action, void *unused) +{ + if (action == SYS_RESTART) { + if (cmm_thread_ptr) + kthread_stop(cmm_thread_ptr); + cmm_thread_ptr = NULL; + cmm_free_pages(loaned_pages); + } + return NOTIFY_DONE; +} + +static struct notifier_block cmm_reboot_nb = { + .notifier_call = cmm_reboot_notifier, +}; + +/** * cmm_init - Module initialization * * Return value: @@ -399,9 +420,12 @@ static int cmm_init(void) if ((rc = register_oom_notifier(&cmm_oom_nb)) < 0) return rc; - if ((rc = cmm_sysfs_register(&cmm_sysdev))) + if ((rc = register_reboot_notifier(&cmm_reboot_nb))) goto out_oom_notifier; + if ((rc = cmm_sysfs_register(&cmm_sysdev))) + goto out_reboot_notifier; + if (cmm_disabled) return rc; @@ -415,6 +439,8 @@ static int cmm_init(void) out_unregister_sysfs: cmm_unregister_sysfs(&cmm_sysdev); +out_reboot_notifier: + unregister_reboot_notifier(&cmm_reboot_nb); out_oom_notifier: unregister_oom_notifier(&cmm_oom_nb); return rc; @@ -431,6 +457,7 @@ static void cmm_exit(void) if (cmm_thread_ptr) kthread_stop(cmm_thread_ptr); unregister_oom_notifier(&cmm_oom_nb); + unregister_reboot_notifier(&cmm_reboot_nb); cmm_free_pages(loaned_pages); cmm_unregister_sysfs(&cmm_sysdev); } diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 54816d75b57..989d6462c15 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -21,6 +21,8 @@ * Please address comments and feedback to Linas Vepstas <linas@austin.ibm.com> */ +#undef DEBUG + #include <linux/delay.h> #include <linux/init.h> #include <linux/list.h> @@ -488,10 +490,8 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) if (!(pdn->eeh_mode & EEH_MODE_SUPPORTED) || pdn->eeh_mode & EEH_MODE_NOCHECK) { ignored_check++; -#ifdef DEBUG - printk ("EEH:ignored check (%x) for %s %s\n", - pdn->eeh_mode, pci_name (dev), dn->full_name); -#endif + pr_debug("EEH: Ignored check (%x) for %s %s\n", + pdn->eeh_mode, pci_name (dev), dn->full_name); return 0; } @@ -1014,10 +1014,9 @@ static void *early_enable_eeh(struct device_node *dn, void *data) eeh_subsystem_enabled = 1; pdn->eeh_mode |= EEH_MODE_SUPPORTED; -#ifdef DEBUG - printk(KERN_DEBUG "EEH: %s: eeh enabled, config=%x pe_config=%x\n", - dn->full_name, pdn->eeh_config_addr, pdn->eeh_pe_config_addr); -#endif + pr_debug("EEH: %s: eeh enabled, config=%x pe_config=%x\n", + dn->full_name, pdn->eeh_config_addr, + pdn->eeh_pe_config_addr); } else { /* This device doesn't support EEH, but it may have an @@ -1161,13 +1160,17 @@ static void eeh_add_device_late(struct pci_dev *dev) if (!dev || !eeh_subsystem_enabled) return; -#ifdef DEBUG - printk(KERN_DEBUG "EEH: adding device %s\n", pci_name(dev)); -#endif + pr_debug("EEH: Adding device %s\n", pci_name(dev)); - pci_dev_get (dev); dn = pci_device_to_OF_node(dev); pdn = PCI_DN(dn); + if (pdn->pcidev == dev) { + pr_debug("EEH: Already referenced !\n"); + return; + } + WARN_ON(pdn->pcidev); + + pci_dev_get (dev); pdn->pcidev = dev; pci_addr_cache_insert_device(dev); @@ -1206,17 +1209,18 @@ static void eeh_remove_device(struct pci_dev *dev) return; /* Unregister the device with the EEH/PCI address search system */ -#ifdef DEBUG - printk(KERN_DEBUG "EEH: remove device %s\n", pci_name(dev)); -#endif - pci_addr_cache_remove_device(dev); - eeh_sysfs_remove_device(dev); + pr_debug("EEH: Removing device %s\n", pci_name(dev)); dn = pci_device_to_OF_node(dev); - if (PCI_DN(dn)->pcidev) { - PCI_DN(dn)->pcidev = NULL; - pci_dev_put (dev); + if (PCI_DN(dn)->pcidev == NULL) { + pr_debug("EEH: Not referenced !\n"); + return; } + PCI_DN(dn)->pcidev = NULL; + pci_dev_put (dev); + + pci_addr_cache_remove_device(dev); + eeh_sysfs_remove_device(dev); } void eeh_remove_bus_device(struct pci_dev *dev) diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c index 8c1ca477c52..0ad56ff7b4a 100644 --- a/arch/powerpc/platforms/pseries/eeh_driver.c +++ b/arch/powerpc/platforms/pseries/eeh_driver.c @@ -41,7 +41,7 @@ static inline const char * pcid_name (struct pci_dev *pdev) return ""; } -#ifdef DEBUG +#if 0 static void print_device_node_tree(struct pci_dn *pdn, int dent) { int i; diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index 1f032483c02..a20ead87153 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -116,7 +116,7 @@ static void pseries_cpu_die(unsigned int cpu) cpu_status = query_cpu_stopped(pcpu); if (cpu_status == 0 || cpu_status == -1) break; - msleep(200); + cpu_relax(); } if (cpu_status != 0) { printk("Querying DEAD? cpu %i (%i) shows %i\n", diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index a1a368dd2d9..a623ad256e9 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -21,7 +21,13 @@ static int pseries_remove_lmb(unsigned long base, unsigned int lmb_size) struct zone *zone; int ret; - start_pfn = base >> PFN_SECTION_SHIFT; + start_pfn = base >> PAGE_SHIFT; + + if (!pfn_valid(start_pfn)) { + lmb_remove(base, lmb_size); + return 0; + } + zone = page_zone(pfn_to_page(start_pfn)); /* diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index a8c446697f9..c90817acb47 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -32,6 +32,7 @@ #include <linux/string.h> #include <linux/pci.h> #include <linux/dma-mapping.h> +#include <linux/crash_dump.h> #include <asm/io.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -291,9 +292,8 @@ static void iommu_table_setparms(struct pci_controller *phb, tbl->it_base = (unsigned long)__va(*basep); -#ifndef CONFIG_CRASH_DUMP - memset((void *)tbl->it_base, 0, *sizep); -#endif + if (!is_kdump_kernel()) + memset((void *)tbl->it_base, 0, *sizep); tbl->it_busno = phb->bus->number; diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 21a6d55418f..5e1ed3d60ee 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -25,6 +25,8 @@ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ +#undef DEBUG + #include <linux/pci.h> #include <asm/pci-bridge.h> #include <asm/ppc-pci.h> @@ -69,74 +71,25 @@ EXPORT_SYMBOL_GPL(pcibios_find_pci_bus); * Remove all of the PCI devices under this bus both from the * linux pci device tree, and from the powerpc EEH address cache. */ -void -pcibios_remove_pci_devices(struct pci_bus *bus) +void pcibios_remove_pci_devices(struct pci_bus *bus) { - struct pci_dev *dev, *tmp; + struct pci_dev *dev, *tmp; + struct pci_bus *child_bus; + + /* First go down child busses */ + list_for_each_entry(child_bus, &bus->children, node) + pcibios_remove_pci_devices(child_bus); + pr_debug("PCI: Removing devices on bus %04x:%02x\n", + pci_domain_nr(bus), bus->number); list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) { + pr_debug(" * Removing %s...\n", pci_name(dev)); eeh_remove_bus_device(dev); - pci_remove_bus_device(dev); - } + pci_remove_bus_device(dev); + } } EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices); -/* Must be called before pci_bus_add_devices */ -void -pcibios_fixup_new_pci_devices(struct pci_bus *bus) -{ - struct pci_dev *dev; - - list_for_each_entry(dev, &bus->devices, bus_list) { - /* Skip already-added devices */ - if (!dev->is_added) { - int i; - - /* Fill device archdata and setup iommu table */ - pcibios_setup_new_device(dev); - - pci_read_irq_line(dev); - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r = &dev->resource[i]; - - if (r->parent || !r->start || !r->flags) - continue; - pci_claim_resource(dev, i); - } - } - } -} -EXPORT_SYMBOL_GPL(pcibios_fixup_new_pci_devices); - -static int -pcibios_pci_config_bridge(struct pci_dev *dev) -{ - u8 sec_busno; - struct pci_bus *child_bus; - - /* Get busno of downstream bus */ - pci_read_config_byte(dev, PCI_SECONDARY_BUS, &sec_busno); - - /* Add to children of PCI bridge dev->bus */ - child_bus = pci_add_new_bus(dev->bus, dev, sec_busno); - if (!child_bus) { - printk (KERN_ERR "%s: could not add second bus\n", __func__); - return -EIO; - } - sprintf(child_bus->name, "PCI Bus #%02x", child_bus->number); - - pci_scan_child_bus(child_bus); - - /* Fixup new pci devices */ - pcibios_fixup_new_pci_devices(child_bus); - - /* Make the discovered devices available */ - pci_bus_add_devices(child_bus); - - eeh_add_device_tree_late(child_bus); - return 0; -} - /** * pcibios_add_pci_devices - adds new pci devices to bus * @@ -147,10 +100,9 @@ pcibios_pci_config_bridge(struct pci_dev *dev) * is how this routine differs from other, similar pcibios * routines.) */ -void -pcibios_add_pci_devices(struct pci_bus * bus) +void pcibios_add_pci_devices(struct pci_bus * bus) { - int slotno, num, mode; + int slotno, num, mode, pass, max; struct pci_dev *dev; struct device_node *dn = pci_bus_to_OF_node(bus); @@ -162,26 +114,23 @@ pcibios_add_pci_devices(struct pci_bus * bus) if (mode == PCI_PROBE_DEVTREE) { /* use ofdt-based probe */ - of_scan_bus(dn, bus); - if (!list_empty(&bus->devices)) { - pcibios_fixup_new_pci_devices(bus); - pci_bus_add_devices(bus); - eeh_add_device_tree_late(bus); - } + of_rescan_bus(dn, bus); } else if (mode == PCI_PROBE_NORMAL) { /* use legacy probe */ slotno = PCI_SLOT(PCI_DN(dn->child)->devfn); num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); - if (num) { - pcibios_fixup_new_pci_devices(bus); - pci_bus_add_devices(bus); - eeh_add_device_tree_late(bus); + if (!num) + return; + pcibios_setup_bus_devices(bus); + max = bus->secondary; + for (pass=0; pass < 2; pass++) + list_for_each_entry(dev, &bus->devices, bus_list) { + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || + dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) + max = pci_scan_bridge(bus, dev, max, pass); } - - list_for_each_entry(dev, &bus->devices, bus_list) - if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) - pcibios_pci_config_bridge(dev); } + pcibios_finish_adding_to_bus(bus); } EXPORT_SYMBOL_GPL(pcibios_add_pci_devices); @@ -190,6 +139,8 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) struct pci_controller *phb; int primary; + pr_debug("PCI: Initializing new hotplug PHB %s\n", dn->full_name); + primary = list_empty(&hose_list); phb = pcibios_alloc_controller(dn); if (!phb) @@ -203,10 +154,59 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) eeh_add_device_tree_early(dn); scan_phb(phb); - pcibios_fixup_new_pci_devices(phb->bus); - pci_bus_add_devices(phb->bus); - eeh_add_device_tree_late(phb->bus); + pcibios_finish_adding_to_bus(phb->bus); return phb; } EXPORT_SYMBOL_GPL(init_phb_dynamic); + +/* RPA-specific bits for removing PHBs */ +int remove_phb_dynamic(struct pci_controller *phb) +{ + struct pci_bus *b = phb->bus; + struct resource *res; + int rc, i; + + pr_debug("PCI: Removing PHB %04x:%02x... \n", + pci_domain_nr(b), b->number); + + /* We cannot to remove a root bus that has children */ + if (!(list_empty(&b->children) && list_empty(&b->devices))) + return -EBUSY; + + /* We -know- there aren't any child devices anymore at this stage + * and thus, we can safely unmap the IO space as it's not in use + */ + res = &phb->io_resource; + if (res->flags & IORESOURCE_IO) { + rc = pcibios_unmap_io_space(b); + if (rc) { + printk(KERN_ERR "%s: failed to unmap IO on bus %s\n", + __func__, b->name); + return 1; + } + } + + /* Unregister the bridge device from sysfs and remove the PCI bus */ + device_unregister(b->bridge); + phb->bus = NULL; + pci_remove_bus(b); + + /* Now release the IO resource */ + if (res->flags & IORESOURCE_IO) + release_resource(res); + + /* Release memory resources */ + for (i = 0; i < 3; ++i) { + res = &phb->mem_resources[i]; + if (!(res->flags & IORESOURCE_MEM)) + continue; + release_resource(res); + } + + /* Free pci_controller data structure */ + pcibios_free_controller(phb); + + return 0; +} +EXPORT_SYMBOL_GPL(remove_phb_dynamic); diff --git a/arch/powerpc/platforms/pseries/phyp_dump.c b/arch/powerpc/platforms/pseries/phyp_dump.c index edbc012c2eb..6cf35cd8d0b 100644 --- a/arch/powerpc/platforms/pseries/phyp_dump.c +++ b/arch/powerpc/platforms/pseries/phyp_dump.c @@ -130,6 +130,9 @@ static unsigned long init_dump_header(struct phyp_dump_header *ph) static void print_dump_header(const struct phyp_dump_header *ph) { #ifdef DEBUG + if (ph == NULL) + return; + printk(KERN_INFO "dump header:\n"); /* setup some ph->sections required */ printk(KERN_INFO "version = %d\n", ph->version); @@ -411,6 +414,8 @@ static int __init phyp_dump_setup(void) of_node_put(rtas); } + ibm_configure_kernel_dump = rtas_token("ibm,configure-kernel-dump"); + print_dump_header(dump_header); dump_area_length = init_dump_header(&phdr); /* align down */ diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index 7637bd38c79..c591a25b0b0 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -466,11 +466,11 @@ static int do_update_property(char *buf, size_t bufsize) else action = PSERIES_DRCONF_MEM_REMOVE; - blocking_notifier_call_chain(&pSeries_reconfig_chain, - action, value); + rc = blocking_notifier_call_chain(&pSeries_reconfig_chain, + action, value); } - return 0; + return rc; } /** diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c index c9ffd8c225f..afad9f5ac0a 100644 --- a/arch/powerpc/platforms/pseries/rtasd.c +++ b/arch/powerpc/platforms/pseries/rtasd.c @@ -208,6 +208,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal) break; case ERR_TYPE_KERNEL_PANIC: default: + WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */ spin_unlock_irqrestore(&rtasd_log_lock, s); return; } @@ -227,6 +228,7 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal) /* Check to see if we need to or have stopped logging */ if (fatal || !logging_enabled) { logging_enabled = 0; + WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */ spin_unlock_irqrestore(&rtasd_log_lock, s); return; } @@ -249,11 +251,13 @@ void pSeries_log_error(char *buf, unsigned int err_type, int fatal) else rtas_log_start += 1; + WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */ spin_unlock_irqrestore(&rtasd_log_lock, s); wake_up_interruptible(&rtas_log_wait); break; case ERR_TYPE_KERNEL_PANIC: default: + WARN_ON_ONCE(!irqs_disabled()); /* @@@ DEBUG @@@ */ spin_unlock_irqrestore(&rtasd_log_lock, s); return; } @@ -295,19 +299,29 @@ static ssize_t rtas_log_read(struct file * file, char __user * buf, if (!tmp) return -ENOMEM; - spin_lock_irqsave(&rtasd_log_lock, s); /* if it's 0, then we know we got the last one (the one in NVRAM) */ - if (rtas_log_size == 0 && logging_enabled) - nvram_clear_error_log(); - spin_unlock_irqrestore(&rtasd_log_lock, s); + while (rtas_log_size == 0) { + if (file->f_flags & O_NONBLOCK) { + spin_unlock_irqrestore(&rtasd_log_lock, s); + error = -EAGAIN; + goto out; + } + if (!logging_enabled) { + spin_unlock_irqrestore(&rtasd_log_lock, s); + error = -ENODATA; + goto out; + } + nvram_clear_error_log(); - error = wait_event_interruptible(rtas_log_wait, rtas_log_size); - if (error) - goto out; + spin_unlock_irqrestore(&rtasd_log_lock, s); + error = wait_event_interruptible(rtas_log_wait, rtas_log_size); + if (error) + goto out; + spin_lock_irqsave(&rtasd_log_lock, s); + } - spin_lock_irqsave(&rtasd_log_lock, s); offset = rtas_error_log_buffer_max * (rtas_log_start & LOG_NUMBER_MASK); memcpy(tmp, &rtas_log_buf[offset], count); diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index 9d8f8c84ab8..1a231c389ba 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -37,7 +37,6 @@ #include <asm/paca.h> #include <asm/time.h> #include <asm/machdep.h> -#include "xics.h" #include <asm/cputable.h> #include <asm/firmware.h> #include <asm/system.h> @@ -49,11 +48,12 @@ #include "plpar_wrappers.h" #include "pseries.h" +#include "xics.h" /* - * The primary thread of each non-boot processor is recorded here before - * smp init. + * The Primary thread of each non-boot processor was started from the OF client + * interface by prom_hold_cpus and is spinning on secondary_hold_spinloop. */ static cpumask_t of_spin_map; @@ -105,36 +105,6 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu) } #ifdef CONFIG_XICS -static inline void smp_xics_do_message(int cpu, int msg) -{ - set_bit(msg, &xics_ipi_message[cpu].value); - mb(); - xics_cause_IPI(cpu); -} - -static void smp_xics_message_pass(int target, int msg) -{ - unsigned int i; - - if (target < NR_CPUS) { - smp_xics_do_message(target, msg); - } else { - for_each_online_cpu(i) { - if (target == MSG_ALL_BUT_SELF - && i == smp_processor_id()) - continue; - smp_xics_do_message(i, msg); - } - } -} - -static int __init smp_xics_probe(void) -{ - xics_request_IPIs(); - - return cpus_weight(cpu_possible_map); -} - static void __devinit smp_xics_setup_cpu(int cpu) { if (cpu != boot_cpuid) @@ -191,8 +161,7 @@ static void __devinit smp_pSeries_kick_cpu(int nr) static int smp_pSeries_cpu_bootable(unsigned int nr) { /* Special case - we inhibit secondary thread startup - * during boot if the user requests it. Odd-numbered - * cpus are assumed to be secondary threads. + * during boot if the user requests it. */ if (system_state < SYSTEM_RUNNING && cpu_has_feature(CPU_FTR_SMT) && @@ -229,11 +198,7 @@ static void __init smp_init_pseries(void) /* Mark threads which are still spinning in hold loops. */ if (cpu_has_feature(CPU_FTR_SMT)) { for_each_present_cpu(i) { - if (i % 2 == 0) - /* - * Even-numbered logical cpus correspond to - * primary threads. - */ + if (cpu_thread_in_core(i) == 0) cpu_set(i, of_spin_map); } } else { diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 0fc830f576f..f7a69021b7b 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -9,32 +9,30 @@ * 2 of the License, or (at your option) any later version. */ - #include <linux/types.h> #include <linux/threads.h> #include <linux/kernel.h> #include <linux/irq.h> #include <linux/smp.h> #include <linux/interrupt.h> -#include <linux/signal.h> #include <linux/init.h> -#include <linux/gfp.h> #include <linux/radix-tree.h> #include <linux/cpu.h> +#include <linux/of.h> #include <asm/firmware.h> -#include <asm/prom.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/smp.h> #include <asm/rtas.h> #include <asm/hvcall.h> #include <asm/machdep.h> -#include <asm/i8259.h> #include "xics.h" #include "plpar_wrappers.h" +static struct irq_host *xics_host; + #define XICS_IPI 2 #define XICS_IRQ_SPURIOUS 0 @@ -47,6 +45,20 @@ */ #define IPI_PRIORITY 4 +static unsigned int default_server = 0xFF; +static unsigned int default_distrib_server = 0; +static unsigned int interrupt_server_size = 8; + +/* RTAS service tokens */ +static int ibm_get_xive; +static int ibm_set_xive; +static int ibm_int_on; +static int ibm_int_off; + + +/* Direct hardware low level accessors */ + +/* The part of the interrupt presentation layer that we care about */ struct xics_ipl { union { u32 word; @@ -65,27 +77,6 @@ struct xics_ipl { static struct xics_ipl __iomem *xics_per_cpu[NR_CPUS]; -static unsigned int default_server = 0xFF; -static unsigned int default_distrib_server = 0; -static unsigned int interrupt_server_size = 8; - -static struct irq_host *xics_host; - -/* - * XICS only has a single IPI, so encode the messages per CPU - */ -struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; - -/* RTAS service tokens */ -static int ibm_get_xive; -static int ibm_set_xive; -static int ibm_int_on; -static int ibm_int_off; - - -/* Direct HW low level accessors */ - - static inline unsigned int direct_xirr_info_get(void) { int cpu = smp_processor_id(); @@ -93,7 +84,7 @@ static inline unsigned int direct_xirr_info_get(void) return in_be32(&xics_per_cpu[cpu]->xirr.word); } -static inline void direct_xirr_info_set(int value) +static inline void direct_xirr_info_set(unsigned int value) { int cpu = smp_processor_id(); @@ -115,7 +106,6 @@ static inline void direct_qirr_info(int n_cpu, u8 value) /* LPAR low level accessors */ - static inline unsigned int lpar_xirr_info_get(void) { unsigned long lpar_rc; @@ -127,15 +117,14 @@ static inline unsigned int lpar_xirr_info_get(void) return (unsigned int)return_value; } -static inline void lpar_xirr_info_set(int value) +static inline void lpar_xirr_info_set(unsigned int value) { unsigned long lpar_rc; - unsigned long val64 = value & 0xffffffff; - lpar_rc = plpar_eoi(val64); + lpar_rc = plpar_eoi(value); if (lpar_rc != H_SUCCESS) - panic("bad return code EOI - rc = %ld, value=%lx\n", lpar_rc, - val64); + panic("bad return code EOI - rc = %ld, value=%x\n", lpar_rc, + value); } static inline void lpar_cppr_info(u8 value) @@ -157,48 +146,7 @@ static inline void lpar_qirr_info(int n_cpu , u8 value) } -/* High level handlers and init code */ - -static void xics_update_irq_servers(void) -{ - int i, j; - struct device_node *np; - u32 ilen; - const u32 *ireg, *isize; - u32 hcpuid; - - /* Find the server numbers for the boot cpu. */ - np = of_get_cpu_node(boot_cpuid, NULL); - BUG_ON(!np); - - ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); - if (!ireg) { - of_node_put(np); - return; - } - - i = ilen / sizeof(int); - hcpuid = get_hard_smp_processor_id(boot_cpuid); - - /* Global interrupt distribution server is specified in the last - * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last - * entry fom this property for current boot cpu id and use it as - * default distribution server - */ - for (j = 0; j < i; j += 2) { - if (ireg[j] == hcpuid) { - default_server = hcpuid; - default_distrib_server = ireg[j+1]; - - isize = of_get_property(np, - "ibm,interrupt-server#-size", NULL); - if (isize) - interrupt_server_size = *isize; - } - } - - of_node_put(np); -} +/* Interface to generic irq subsystem */ #ifdef CONFIG_SMP static int get_irq_server(unsigned int virq, unsigned int strict_check) @@ -208,9 +156,6 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check) cpumask_t cpumask = irq_desc[virq].affinity; cpumask_t tmp = CPU_MASK_NONE; - if (! cpu_isset(default_server, cpu_online_map)) - xics_update_irq_servers(); - if (!distribute_irqs) return default_server; @@ -238,7 +183,6 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check) } #endif - static void xics_unmask_irq(unsigned int virq) { unsigned int irq; @@ -257,21 +201,28 @@ static void xics_unmask_irq(unsigned int virq) call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server, DEFAULT_PRIORITY); if (call_status != 0) { - printk(KERN_ERR "xics_enable_irq: irq=%u: ibm_set_xive " - "returned %d\n", irq, call_status); - printk("set_xive %x, server %x\n", ibm_set_xive, server); + printk(KERN_ERR + "%s: ibm_set_xive irq %u server %x returned %d\n", + __func__, irq, server, call_status); return; } /* Now unmask the interrupt (often a no-op) */ call_status = rtas_call(ibm_int_on, 1, 1, NULL, irq); if (call_status != 0) { - printk(KERN_ERR "xics_enable_irq: irq=%u: ibm_int_on " - "returned %d\n", irq, call_status); + printk(KERN_ERR "%s: ibm_int_on irq=%u returned %d\n", + __func__, irq, call_status); return; } } +static unsigned int xics_startup(unsigned int virq) +{ + /* unmask it */ + xics_unmask_irq(virq); + return 0; +} + static void xics_mask_real_irq(unsigned int irq) { int call_status; @@ -281,8 +232,8 @@ static void xics_mask_real_irq(unsigned int irq) call_status = rtas_call(ibm_int_off, 1, 1, NULL, irq); if (call_status != 0) { - printk(KERN_ERR "xics_disable_real_irq: irq=%u: " - "ibm_int_off returned %d\n", irq, call_status); + printk(KERN_ERR "%s: ibm_int_off irq=%u returned %d\n", + __func__, irq, call_status); return; } @@ -290,8 +241,8 @@ static void xics_mask_real_irq(unsigned int irq) call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, default_server, 0xff); if (call_status != 0) { - printk(KERN_ERR "xics_disable_irq: irq=%u: ibm_set_xive(0xff)" - " returned %d\n", irq, call_status); + printk(KERN_ERR "%s: ibm_set_xive(0xff) irq=%u returned %d\n", + __func__, irq, call_status); return; } } @@ -308,132 +259,77 @@ static void xics_mask_irq(unsigned int virq) xics_mask_real_irq(irq); } -static unsigned int xics_startup(unsigned int virq) +static void xics_mask_unknown_vec(unsigned int vec) { - unsigned int irq; - - /* force a reverse mapping of the interrupt so it gets in the cache */ - irq = (unsigned int)irq_map[virq].hwirq; - irq_radix_revmap(xics_host, irq); - - /* unmask it */ - xics_unmask_irq(virq); - return 0; -} - -static void xics_eoi_direct(unsigned int virq) -{ - unsigned int irq = (unsigned int)irq_map[virq].hwirq; - - iosync(); - direct_xirr_info_set((0xff << 24) | irq); + printk(KERN_ERR "Interrupt %u (real) is invalid, disabling it.\n", vec); + xics_mask_real_irq(vec); } - -static void xics_eoi_lpar(unsigned int virq) +static inline unsigned int xics_xirr_vector(unsigned int xirr) { - unsigned int irq = (unsigned int)irq_map[virq].hwirq; - - iosync(); - lpar_xirr_info_set((0xff << 24) | irq); + /* + * The top byte is the old cppr, to be restored on EOI. + * The remaining 24 bits are the vector. + */ + return xirr & 0x00ffffff; } -static inline unsigned int xics_remap_irq(unsigned int vec) +static unsigned int xics_get_irq_direct(void) { + unsigned int xirr = direct_xirr_info_get(); + unsigned int vec = xics_xirr_vector(xirr); unsigned int irq; - vec &= 0x00ffffff; - if (vec == XICS_IRQ_SPURIOUS) return NO_IRQ; - irq = irq_radix_revmap(xics_host, vec); + + irq = irq_radix_revmap_lookup(xics_host, vec); if (likely(irq != NO_IRQ)) return irq; - printk(KERN_ERR "Interrupt %u (real) is invalid," - " disabling it.\n", vec); - xics_mask_real_irq(vec); - return NO_IRQ; -} + /* We don't have a linux mapping, so have rtas mask it. */ + xics_mask_unknown_vec(vec); -static unsigned int xics_get_irq_direct(void) -{ - return xics_remap_irq(direct_xirr_info_get()); + /* We might learn about it later, so EOI it */ + direct_xirr_info_set(xirr); + return NO_IRQ; } static unsigned int xics_get_irq_lpar(void) { - return xics_remap_irq(lpar_xirr_info_get()); -} - -#ifdef CONFIG_SMP - -static irqreturn_t xics_ipi_dispatch(int cpu) -{ - WARN_ON(cpu_is_offline(cpu)); + unsigned int xirr = lpar_xirr_info_get(); + unsigned int vec = xics_xirr_vector(xirr); + unsigned int irq; - while (xics_ipi_message[cpu].value) { - if (test_and_clear_bit(PPC_MSG_CALL_FUNCTION, - &xics_ipi_message[cpu].value)) { - mb(); - smp_message_recv(PPC_MSG_CALL_FUNCTION); - } - if (test_and_clear_bit(PPC_MSG_RESCHEDULE, - &xics_ipi_message[cpu].value)) { - mb(); - smp_message_recv(PPC_MSG_RESCHEDULE); - } - if (test_and_clear_bit(PPC_MSG_CALL_FUNC_SINGLE, - &xics_ipi_message[cpu].value)) { - mb(); - smp_message_recv(PPC_MSG_CALL_FUNC_SINGLE); - } -#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) - if (test_and_clear_bit(PPC_MSG_DEBUGGER_BREAK, - &xics_ipi_message[cpu].value)) { - mb(); - smp_message_recv(PPC_MSG_DEBUGGER_BREAK); - } -#endif - } - return IRQ_HANDLED; -} + if (vec == XICS_IRQ_SPURIOUS) + return NO_IRQ; -static irqreturn_t xics_ipi_action_direct(int irq, void *dev_id) -{ - int cpu = smp_processor_id(); + irq = irq_radix_revmap_lookup(xics_host, vec); + if (likely(irq != NO_IRQ)) + return irq; - direct_qirr_info(cpu, 0xff); + /* We don't have a linux mapping, so have RTAS mask it. */ + xics_mask_unknown_vec(vec); - return xics_ipi_dispatch(cpu); + /* We might learn about it later, so EOI it */ + lpar_xirr_info_set(xirr); + return NO_IRQ; } -static irqreturn_t xics_ipi_action_lpar(int irq, void *dev_id) +static void xics_eoi_direct(unsigned int virq) { - int cpu = smp_processor_id(); - - lpar_qirr_info(cpu, 0xff); + unsigned int irq = (unsigned int)irq_map[virq].hwirq; - return xics_ipi_dispatch(cpu); + iosync(); + direct_xirr_info_set((0xff << 24) | irq); } -void xics_cause_IPI(int cpu) +static void xics_eoi_lpar(unsigned int virq) { - if (firmware_has_feature(FW_FEATURE_LPAR)) - lpar_qirr_info(cpu, IPI_PRIORITY); - else - direct_qirr_info(cpu, IPI_PRIORITY); -} - -#endif /* CONFIG_SMP */ + unsigned int irq = (unsigned int)irq_map[virq].hwirq; -static void xics_set_cpu_priority(unsigned char cppr) -{ - if (firmware_has_feature(FW_FEATURE_LPAR)) - lpar_cppr_info(cppr); - else - direct_cppr_info(cppr); iosync(); + lpar_xirr_info_set((0xff << 24) | irq); } static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) @@ -450,8 +346,8 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); if (status) { - printk(KERN_ERR "xics_set_affinity: irq=%u ibm,get-xive " - "returns %d\n", irq, status); + printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", + __func__, irq, status); return; } @@ -463,8 +359,9 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) if (irq_server == -1) { char cpulist[128]; cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask); - printk(KERN_WARNING "xics_set_affinity: No online cpus in " - "the mask %s for irq %d\n", cpulist, virq); + printk(KERN_WARNING + "%s: No online cpus in the mask %s for irq %d\n", + __func__, cpulist, virq); return; } @@ -472,28 +369,12 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) irq, irq_server, xics_status[1]); if (status) { - printk(KERN_ERR "xics_set_affinity: irq=%u ibm,set-xive " - "returns %d\n", irq, status); + printk(KERN_ERR "%s: ibm,set-xive irq=%u returns %d\n", + __func__, irq, status); return; } } -void xics_setup_cpu(void) -{ - xics_set_cpu_priority(0xff); - - /* - * Put the calling processor into the GIQ. This is really only - * necessary from a secondary thread as the OF start-cpu interface - * performs this function for us on primary threads. - * - * XXX: undo of teardown on kexec needs this too, as may hotplug - */ - rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, - (1UL << interrupt_server_size) - 1 - default_distrib_server, 1); -} - - static struct irq_chip xics_pic_direct = { .typename = " XICS ", .startup = xics_startup, @@ -503,7 +384,6 @@ static struct irq_chip xics_pic_direct = { .set_affinity = xics_set_affinity }; - static struct irq_chip xics_pic_lpar = { .typename = " XICS ", .startup = xics_startup, @@ -513,6 +393,9 @@ static struct irq_chip xics_pic_lpar = { .set_affinity = xics_set_affinity }; + +/* Interface to arch irq controller subsystem layer */ + /* Points to the irq_chip we're actually using */ static struct irq_chip *xics_irq_chip; @@ -530,6 +413,9 @@ static int xics_host_map(struct irq_host *h, unsigned int virq, { pr_debug("xics: map virq %d, hwirq 0x%lx\n", virq, hw); + /* Insert the interrupt mapping into the radix tree for fast lookup */ + irq_radix_revmap_insert(xics_host, virq, hw); + get_irq_desc(virq)->status |= IRQ_LEVEL; set_irq_chip_and_handler(virq, xics_irq_chip, handle_fasteoi_irq); return 0; @@ -569,10 +455,164 @@ static void __init xics_init_host(void) irq_set_default_host(xics_host); } + +/* Inter-processor interrupt support */ + +#ifdef CONFIG_SMP +/* + * XICS only has a single IPI, so encode the messages per CPU + */ +struct xics_ipi_struct { + unsigned long value; + } ____cacheline_aligned; + +static struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; + +static inline void smp_xics_do_message(int cpu, int msg) +{ + set_bit(msg, &xics_ipi_message[cpu].value); + mb(); + if (firmware_has_feature(FW_FEATURE_LPAR)) + lpar_qirr_info(cpu, IPI_PRIORITY); + else + direct_qirr_info(cpu, IPI_PRIORITY); +} + +void smp_xics_message_pass(int target, int msg) +{ + unsigned int i; + + if (target < NR_CPUS) { + smp_xics_do_message(target, msg); + } else { + for_each_online_cpu(i) { + if (target == MSG_ALL_BUT_SELF + && i == smp_processor_id()) + continue; + smp_xics_do_message(i, msg); + } + } +} + +static irqreturn_t xics_ipi_dispatch(int cpu) +{ + WARN_ON(cpu_is_offline(cpu)); + + mb(); /* order mmio clearing qirr */ + while (xics_ipi_message[cpu].value) { + if (test_and_clear_bit(PPC_MSG_CALL_FUNCTION, + &xics_ipi_message[cpu].value)) { + smp_message_recv(PPC_MSG_CALL_FUNCTION); + } + if (test_and_clear_bit(PPC_MSG_RESCHEDULE, + &xics_ipi_message[cpu].value)) { + smp_message_recv(PPC_MSG_RESCHEDULE); + } + if (test_and_clear_bit(PPC_MSG_CALL_FUNC_SINGLE, + &xics_ipi_message[cpu].value)) { + smp_message_recv(PPC_MSG_CALL_FUNC_SINGLE); + } +#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC) + if (test_and_clear_bit(PPC_MSG_DEBUGGER_BREAK, + &xics_ipi_message[cpu].value)) { + smp_message_recv(PPC_MSG_DEBUGGER_BREAK); + } +#endif + } + return IRQ_HANDLED; +} + +static irqreturn_t xics_ipi_action_direct(int irq, void *dev_id) +{ + int cpu = smp_processor_id(); + + direct_qirr_info(cpu, 0xff); + + return xics_ipi_dispatch(cpu); +} + +static irqreturn_t xics_ipi_action_lpar(int irq, void *dev_id) +{ + int cpu = smp_processor_id(); + + lpar_qirr_info(cpu, 0xff); + + return xics_ipi_dispatch(cpu); +} + +static void xics_request_ipi(void) +{ + unsigned int ipi; + int rc; + + ipi = irq_create_mapping(xics_host, XICS_IPI); + BUG_ON(ipi == NO_IRQ); + + /* + * IPIs are marked IRQF_DISABLED as they must run with irqs + * disabled + */ + set_irq_handler(ipi, handle_percpu_irq); + if (firmware_has_feature(FW_FEATURE_LPAR)) + rc = request_irq(ipi, xics_ipi_action_lpar, + IRQF_DISABLED|IRQF_PERCPU, "IPI", NULL); + else + rc = request_irq(ipi, xics_ipi_action_direct, + IRQF_DISABLED|IRQF_PERCPU, "IPI", NULL); + BUG_ON(rc); +} + +int __init smp_xics_probe(void) +{ + xics_request_ipi(); + + return cpus_weight(cpu_possible_map); +} + +#endif /* CONFIG_SMP */ + + +/* Initialization */ + +static void xics_update_irq_servers(void) +{ + int i, j; + struct device_node *np; + u32 ilen; + const u32 *ireg; + u32 hcpuid; + + /* Find the server numbers for the boot cpu. */ + np = of_get_cpu_node(boot_cpuid, NULL); + BUG_ON(!np); + + ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen); + if (!ireg) { + of_node_put(np); + return; + } + + i = ilen / sizeof(int); + hcpuid = get_hard_smp_processor_id(boot_cpuid); + + /* Global interrupt distribution server is specified in the last + * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last + * entry fom this property for current boot cpu id and use it as + * default distribution server + */ + for (j = 0; j < i; j += 2) { + if (ireg[j] == hcpuid) { + default_server = hcpuid; + default_distrib_server = ireg[j+1]; + } + } + + of_node_put(np); +} + static void __init xics_map_one_cpu(int hw_id, unsigned long addr, unsigned long size) { -#ifdef CONFIG_SMP int i; /* This may look gross but it's good enough for now, we don't quite @@ -586,11 +626,6 @@ static void __init xics_map_one_cpu(int hw_id, unsigned long addr, return; } } -#else - if (hw_id != 0) - return; - xics_per_cpu[0] = ioremap(addr, size); -#endif /* CONFIG_SMP */ } static void __init xics_init_one_node(struct device_node *np, @@ -642,6 +677,7 @@ void __init xics_init_IRQ(void) struct device_node *np; u32 indx = 0; int found = 0; + const u32 *isize; ppc64_boot_msg(0x20, "XICS Init"); @@ -652,15 +688,37 @@ void __init xics_init_IRQ(void) for_each_node_by_type(np, "PowerPC-External-Interrupt-Presentation") { found = 1; - if (firmware_has_feature(FW_FEATURE_LPAR)) + if (firmware_has_feature(FW_FEATURE_LPAR)) { + of_node_put(np); break; + } xics_init_one_node(np, &indx); } if (found == 0) return; - xics_init_host(); + /* get the bit size of server numbers */ + found = 0; + + for_each_compatible_node(np, NULL, "ibm,ppc-xics") { + isize = of_get_property(np, "ibm,interrupt-server#-size", NULL); + + if (!isize) + continue; + + if (!found) { + interrupt_server_size = *isize; + found = 1; + } else if (*isize != interrupt_server_size) { + printk(KERN_WARNING "XICS: " + "mismatched ibm,interrupt-server#-size\n"); + interrupt_server_size = max(*isize, + interrupt_server_size); + } + } + xics_update_irq_servers(); + xics_init_host(); if (firmware_has_feature(FW_FEATURE_LPAR)) ppc_md.get_irq = xics_get_irq_lpar; @@ -672,30 +730,40 @@ void __init xics_init_IRQ(void) ppc64_boot_msg(0x21, "XICS Done"); } +/* Cpu startup, shutdown, and hotplug */ -#ifdef CONFIG_SMP -void xics_request_IPIs(void) +static void xics_set_cpu_priority(unsigned char cppr) { - unsigned int ipi; - int rc; - - ipi = irq_create_mapping(xics_host, XICS_IPI); - BUG_ON(ipi == NO_IRQ); - - /* - * IPIs are marked IRQF_DISABLED as they must run with irqs - * disabled - */ - set_irq_handler(ipi, handle_percpu_irq); if (firmware_has_feature(FW_FEATURE_LPAR)) - rc = request_irq(ipi, xics_ipi_action_lpar, IRQF_DISABLED, - "IPI", NULL); + lpar_cppr_info(cppr); else - rc = request_irq(ipi, xics_ipi_action_direct, IRQF_DISABLED, - "IPI", NULL); - BUG_ON(rc); + direct_cppr_info(cppr); + iosync(); +} + +/* Have the calling processor join or leave the specified global queue */ +static void xics_set_cpu_giq(unsigned int gserver, unsigned int join) +{ + int index; + int status; + + if (!rtas_indicator_present(GLOBAL_INTERRUPT_QUEUE, NULL)) + return; + + index = (1UL << interrupt_server_size) - 1 - gserver; + + status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, index, join); + + WARN(status < 0, "set-indicator(%d, %d, %u) returned %d\n", + GLOBAL_INTERRUPT_QUEUE, index, join, status); +} + +void xics_setup_cpu(void) +{ + xics_set_cpu_priority(0xff); + + xics_set_cpu_giq(default_distrib_server, 1); } -#endif /* CONFIG_SMP */ void xics_teardown_cpu(void) { @@ -703,9 +771,7 @@ void xics_teardown_cpu(void) xics_set_cpu_priority(0); - /* - * Clear IPI - */ + /* Clear any pending IPI request */ if (firmware_has_feature(FW_FEATURE_LPAR)) lpar_qirr_info(cpu, 0xff); else @@ -714,34 +780,28 @@ void xics_teardown_cpu(void) void xics_kexec_teardown_cpu(int secondary) { - unsigned int ipi; - struct irq_desc *desc; - xics_teardown_cpu(); /* - * we need to EOI the IPI + * we take the ipi irq but and never return so we + * need to EOI the IPI, but want to leave our priority 0 * - * probably need to check all the other interrupts too + * should we check all the other interrupts too? * should we be flagging idle loop instead? * or creating some task to be scheduled? */ - ipi = irq_find_mapping(xics_host, XICS_IPI); - if (ipi == XICS_IRQ_SPURIOUS) - return; - desc = get_irq_desc(ipi); - if (desc->chip && desc->chip->eoi) - desc->chip->eoi(ipi); + if (firmware_has_feature(FW_FEATURE_LPAR)) + lpar_xirr_info_set((0x00 << 24) | XICS_IPI); + else + direct_xirr_info_set((0x00 << 24) | XICS_IPI); /* * Some machines need to have at least one cpu in the GIQ, * so leave the master cpu in the group. */ if (secondary) - rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, - (1UL << interrupt_server_size) - 1 - - default_distrib_server, 0); + xics_set_cpu_giq(default_distrib_server, 0); } #ifdef CONFIG_HOTPLUG_CPU @@ -749,17 +809,18 @@ void xics_kexec_teardown_cpu(int secondary) /* Interrupts are disabled. */ void xics_migrate_irqs_away(void) { - int status; int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); unsigned int irq, virq; + /* If we used to be the default server, move to the new "boot_cpuid" */ + if (hw_cpu == default_server) + xics_update_irq_servers(); + /* Reject any interrupt that was queued to us... */ xics_set_cpu_priority(0); - /* remove ourselves from the global interrupt queue */ - status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, - (1UL << interrupt_server_size) - 1 - default_distrib_server, 0); - WARN_ON(status < 0); + /* Remove ourselves from the global interrupt queue */ + xics_set_cpu_giq(default_distrib_server, 0); /* Allow IPIs again... */ xics_set_cpu_priority(DEFAULT_PRIORITY); @@ -767,6 +828,7 @@ void xics_migrate_irqs_away(void) for_each_irq(virq) { struct irq_desc *desc; int xics_status[2]; + int status; unsigned long flags; /* We cant set affinity on ISA interrupts */ @@ -790,9 +852,8 @@ void xics_migrate_irqs_away(void) status = rtas_call(ibm_get_xive, 1, 3, xics_status, irq); if (status) { - printk(KERN_ERR "migrate_irqs_away: irq=%u " - "ibm,get-xive returns %d\n", - virq, status); + printk(KERN_ERR "%s: ibm,get-xive irq=%u returns %d\n", + __func__, irq, status); goto unlock; } diff --git a/arch/powerpc/platforms/pseries/xics.h b/arch/powerpc/platforms/pseries/xics.h index 1c5321ae8f2..d1d5a83039a 100644 --- a/arch/powerpc/platforms/pseries/xics.h +++ b/arch/powerpc/platforms/pseries/xics.h @@ -12,20 +12,12 @@ #ifndef _POWERPC_KERNEL_XICS_H #define _POWERPC_KERNEL_XICS_H -#include <linux/cache.h> - extern void xics_init_IRQ(void); extern void xics_setup_cpu(void); extern void xics_teardown_cpu(void); extern void xics_kexec_teardown_cpu(int secondary); -extern void xics_cause_IPI(int cpu); -extern void xics_request_IPIs(void); extern void xics_migrate_irqs_away(void); - -struct xics_ipi_struct { - volatile unsigned long value; -} ____cacheline_aligned; - -extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; +extern int smp_xics_probe(void); +extern void smp_xics_message_pass(int target, int msg); #endif /* _POWERPC_KERNEL_XICS_H */ |