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authorPaul Mackerras <paulus@samba.org>2005-10-10 22:03:41 +1000
committerPaul Mackerras <paulus@samba.org>2005-10-10 22:03:41 +1000
commit69a80d3f69d0b2d7fae5a73c6e034d402d434d8a (patch)
treedd66f34510eae791a04c8dd77ce77a223b2f46d6 /arch/ppc64
parentab1f9dac6eea25ee59e4c8e1cf0b7476afbbfe07 (diff)
powerpc: move pSeries files to arch/powerpc/platforms/pseries
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/kernel/Makefile4
-rw-r--r--arch/ppc64/kernel/pSeries_hvCall.S131
-rw-r--r--arch/ppc64/kernel/pSeries_iommu.c606
-rw-r--r--arch/ppc64/kernel/pSeries_lpar.c517
-rw-r--r--arch/ppc64/kernel/pSeries_nvram.c148
-rw-r--r--arch/ppc64/kernel/pSeries_pci.c142
-rw-r--r--arch/ppc64/kernel/pSeries_reconfig.c426
-rw-r--r--arch/ppc64/kernel/pSeries_setup.c622
-rw-r--r--arch/ppc64/kernel/pSeries_smp.c517
-rw-r--r--arch/ppc64/kernel/pSeries_vio.c274
10 files changed, 1 insertions, 3386 deletions
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 32fd3f1c793..6a0fea27238 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -24,9 +24,7 @@ obj-$(CONFIG_PCI) += pci.o pci_iommu.o iomap.o $(pci-obj-y)
obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o
-obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \
- pSeries_nvram.o rtasd.o ras.o pSeries_reconfig.o \
- pSeries_setup.o pSeries_iommu.o udbg_16550.o
+obj-$(CONFIG_PPC_PSERIES) += rtasd.o ras.o udbg_16550.o
obj-$(CONFIG_PPC_BPA) += bpa_setup.o bpa_iommu.o bpa_nvram.o \
bpa_iic.o spider-pic.o
diff --git a/arch/ppc64/kernel/pSeries_hvCall.S b/arch/ppc64/kernel/pSeries_hvCall.S
deleted file mode 100644
index 176e8da7646..00000000000
--- a/arch/ppc64/kernel/pSeries_hvCall.S
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * arch/ppc64/kernel/pSeries_hvCall.S
- *
- * This file contains the generic code to perform a call to the
- * pSeries LPAR hypervisor.
- * NOTE: this file will go away when we move to inline this work.
- *
- * 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 <asm/hvcall.h>
-#include <asm/processor.h>
-#include <asm/ppc_asm.h>
-
-#define STK_PARM(i) (48 + ((i)-3)*8)
-
- .text
-
-/* long plpar_hcall(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long *out1, R8
- unsigned long *out2, R9
- unsigned long *out3); R10
- */
-_GLOBAL(plpar_hcall)
- HMT_MEDIUM
-
- mfcr r0
-
- std r8,STK_PARM(r8)(r1) /* Save out ptrs */
- std r9,STK_PARM(r9)(r1)
- std r10,STK_PARM(r10)(r1)
-
- stw r0,8(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
-
- ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */
- ld r9,STK_PARM(r9)(r1)
- ld r10,STK_PARM(r10)(r1)
- std r4,0(r8)
- std r5,0(r9)
- std r6,0(r10)
-
- mtcrf 0xff,r0
- blr /* return r3 = status */
-
-
-/* Simple interface with no output values (other than status) */
-_GLOBAL(plpar_hcall_norets)
- HMT_MEDIUM
-
- mfcr r0
- stw r0,8(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
- mtcrf 0xff,r0
- blr /* return r3 = status */
-
-
-/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long arg5, R8
- unsigned long arg6, R9
- unsigned long arg7, R10
- unsigned long arg8, 112(R1)
- unsigned long *out1); 120(R1)
- */
-_GLOBAL(plpar_hcall_8arg_2ret)
- HMT_MEDIUM
-
- mfcr r0
- ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
- stw r0,8(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
- ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */
- std r4,0(r10)
- mtcrf 0xff,r0
- blr /* return r3 = status */
-
-
-/* long plpar_hcall_4out(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long *out1, R8
- unsigned long *out2, R9
- unsigned long *out3, R10
- unsigned long *out4); 112(R1)
- */
-_GLOBAL(plpar_hcall_4out)
- HMT_MEDIUM
-
- mfcr r0
- stw r0,8(r1)
-
- std r8,STK_PARM(r8)(r1) /* Save out ptrs */
- std r9,STK_PARM(r9)(r1)
- std r10,STK_PARM(r10)(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
-
- ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */
- ld r9,STK_PARM(r9)(r1)
- ld r10,STK_PARM(r10)(r1)
- ld r11,STK_PARM(r11)(r1)
- std r4,0(r8)
- std r5,0(r9)
- std r6,0(r10)
- std r7,0(r11)
-
- mtcrf 0xff,r0
- blr /* return r3 = status */
diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c
deleted file mode 100644
index 9e90d41131d..00000000000
--- a/arch/ppc64/kernel/pSeries_iommu.c
+++ /dev/null
@@ -1,606 +0,0 @@
-/*
- * arch/ppc64/kernel/pSeries_iommu.c
- *
- * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
- *
- * Rewrite, cleanup:
- *
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
- *
- * Dynamic DMA mapping support, pSeries-specific parts, both SMP and LPAR.
- *
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/string.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/ppcdebug.h>
-#include <asm/iommu.h>
-#include <asm/pci-bridge.h>
-#include <asm/machdep.h>
-#include <asm/abs_addr.h>
-#include <asm/plpar_wrappers.h>
-#include <asm/pSeries_reconfig.h>
-#include <asm/systemcfg.h>
-#include <asm/firmware.h>
-#include <asm/tce.h>
-#include <asm/ppc-pci.h>
-
-#define DBG(fmt...)
-
-extern int is_python(struct device_node *);
-
-static void tce_build_pSeries(struct iommu_table *tbl, long index,
- long npages, unsigned long uaddr,
- enum dma_data_direction direction)
-{
- union tce_entry t;
- union tce_entry *tp;
-
- index <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
- t.te_word = 0;
- t.te_rdwr = 1; // Read allowed
-
- if (direction != DMA_TO_DEVICE)
- t.te_pciwr = 1;
-
- tp = ((union tce_entry *)tbl->it_base) + index;
-
- while (npages--) {
- /* can't move this out since we might cross LMB boundary */
- t.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
-
- tp->te_word = t.te_word;
-
- uaddr += TCE_PAGE_SIZE;
- tp++;
- }
-}
-
-
-static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
-{
- union tce_entry t;
- union tce_entry *tp;
-
- npages <<= TCE_PAGE_FACTOR;
- index <<= TCE_PAGE_FACTOR;
-
- t.te_word = 0;
- tp = ((union tce_entry *)tbl->it_base) + index;
-
- while (npages--) {
- tp->te_word = t.te_word;
-
- tp++;
- }
-}
-
-
-static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
- long npages, unsigned long uaddr,
- enum dma_data_direction direction)
-{
- u64 rc;
- union tce_entry tce;
-
- tce.te_word = 0;
- tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
- tce.te_rdwr = 1;
- if (direction != DMA_TO_DEVICE)
- tce.te_pciwr = 1;
-
- while (npages--) {
- rc = plpar_tce_put((u64)tbl->it_index,
- (u64)tcenum << 12,
- tce.te_word );
-
- if (rc && printk_ratelimit()) {
- printk("tce_build_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
- printk("\tindex = 0x%lx\n", (u64)tbl->it_index);
- printk("\ttcenum = 0x%lx\n", (u64)tcenum);
- printk("\ttce val = 0x%lx\n", tce.te_word );
- show_stack(current, (unsigned long *)__get_SP());
- }
-
- tcenum++;
- tce.te_rpn++;
- }
-}
-
-static DEFINE_PER_CPU(void *, tce_page) = NULL;
-
-static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
- long npages, unsigned long uaddr,
- enum dma_data_direction direction)
-{
- u64 rc;
- union tce_entry tce, *tcep;
- long l, limit;
-
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
- if (npages == 1)
- return tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
- direction);
-
- tcep = __get_cpu_var(tce_page);
-
- /* This is safe to do since interrupts are off when we're called
- * from iommu_alloc{,_sg}()
- */
- if (!tcep) {
- tcep = (void *)__get_free_page(GFP_ATOMIC);
- /* If allocation fails, fall back to the loop implementation */
- if (!tcep)
- return tce_build_pSeriesLP(tbl, tcenum, npages,
- uaddr, direction);
- __get_cpu_var(tce_page) = tcep;
- }
-
- tce.te_word = 0;
- tce.te_rpn = (virt_to_abs(uaddr)) >> TCE_SHIFT;
- tce.te_rdwr = 1;
- if (direction != DMA_TO_DEVICE)
- tce.te_pciwr = 1;
-
- /* We can map max one pageful of TCEs at a time */
- do {
- /*
- * Set up the page with TCE data, looping through and setting
- * the values.
- */
- limit = min_t(long, npages, 4096/sizeof(union tce_entry));
-
- for (l = 0; l < limit; l++) {
- tcep[l] = tce;
- tce.te_rpn++;
- }
-
- rc = plpar_tce_put_indirect((u64)tbl->it_index,
- (u64)tcenum << 12,
- (u64)virt_to_abs(tcep),
- limit);
-
- npages -= limit;
- tcenum += limit;
- } while (npages > 0 && !rc);
-
- if (rc && printk_ratelimit()) {
- printk("tce_buildmulti_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
- printk("\tindex = 0x%lx\n", (u64)tbl->it_index);
- printk("\tnpages = 0x%lx\n", (u64)npages);
- printk("\ttce[0] val = 0x%lx\n", tcep[0].te_word);
- show_stack(current, (unsigned long *)__get_SP());
- }
-}
-
-static void tce_free_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
-{
- u64 rc;
- union tce_entry tce;
-
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
- tce.te_word = 0;
-
- while (npages--) {
- rc = plpar_tce_put((u64)tbl->it_index,
- (u64)tcenum << 12,
- tce.te_word);
-
- if (rc && printk_ratelimit()) {
- printk("tce_free_pSeriesLP: plpar_tce_put failed. rc=%ld\n", rc);
- printk("\tindex = 0x%lx\n", (u64)tbl->it_index);
- printk("\ttcenum = 0x%lx\n", (u64)tcenum);
- printk("\ttce val = 0x%lx\n", tce.te_word );
- show_stack(current, (unsigned long *)__get_SP());
- }
-
- tcenum++;
- }
-}
-
-
-static void tce_freemulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages)
-{
- u64 rc;
- union tce_entry tce;
-
- tcenum <<= TCE_PAGE_FACTOR;
- npages <<= TCE_PAGE_FACTOR;
-
- tce.te_word = 0;
-
- rc = plpar_tce_stuff((u64)tbl->it_index,
- (u64)tcenum << 12,
- tce.te_word,
- npages);
-
- if (rc && printk_ratelimit()) {
- printk("tce_freemulti_pSeriesLP: plpar_tce_stuff failed\n");
- printk("\trc = %ld\n", rc);
- printk("\tindex = 0x%lx\n", (u64)tbl->it_index);
- printk("\tnpages = 0x%lx\n", (u64)npages);
- printk("\ttce val = 0x%lx\n", tce.te_word );
- show_stack(current, (unsigned long *)__get_SP());
- }
-}
-
-static void iommu_table_setparms(struct pci_controller *phb,
- struct device_node *dn,
- struct iommu_table *tbl)
-{
- struct device_node *node;
- unsigned long *basep;
- unsigned int *sizep;
-
- node = (struct device_node *)phb->arch_data;
-
- basep = (unsigned long *)get_property(node, "linux,tce-base", NULL);
- sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL);
- if (basep == NULL || sizep == NULL) {
- printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
- "missing tce entries !\n", dn->full_name);
- return;
- }
-
- tbl->it_base = (unsigned long)__va(*basep);
- memset((void *)tbl->it_base, 0, *sizep);
-
- tbl->it_busno = phb->bus->number;
-
- /* Units of tce entries */
- tbl->it_offset = phb->dma_window_base_cur >> PAGE_SHIFT;
-
- /* Test if we are going over 2GB of DMA space */
- if (phb->dma_window_base_cur + phb->dma_window_size > 0x80000000ul) {
- udbg_printf("PCI_DMA: Unexpected number of IOAs under this PHB.\n");
- panic("PCI_DMA: Unexpected number of IOAs under this PHB.\n");
- }
-
- phb->dma_window_base_cur += phb->dma_window_size;
-
- /* Set the tce table size - measured in entries */
- tbl->it_size = phb->dma_window_size >> PAGE_SHIFT;
-
- tbl->it_index = 0;
- tbl->it_blocksize = 16;
- tbl->it_type = TCE_PCI;
-}
-
-/*
- * iommu_table_setparms_lpar
- *
- * Function: On pSeries LPAR systems, return TCE table info, given a pci bus.
- *
- * ToDo: properly interpret the ibm,dma-window property. The definition is:
- * logical-bus-number (1 word)
- * phys-address (#address-cells words)
- * size (#cell-size words)
- *
- * Currently we hard code these sizes (more or less).
- */
-static void iommu_table_setparms_lpar(struct pci_controller *phb,
- struct device_node *dn,
- struct iommu_table *tbl,
- unsigned int *dma_window)
-{
- tbl->it_busno = PCI_DN(dn)->bussubno;
-
- /* TODO: Parse field size properties properly. */
- tbl->it_size = (((unsigned long)dma_window[4] << 32) |
- (unsigned long)dma_window[5]) >> PAGE_SHIFT;
- tbl->it_offset = (((unsigned long)dma_window[2] << 32) |
- (unsigned long)dma_window[3]) >> PAGE_SHIFT;
- tbl->it_base = 0;
- tbl->it_index = dma_window[0];
- tbl->it_blocksize = 16;
- tbl->it_type = TCE_PCI;
-}
-
-static void iommu_bus_setup_pSeries(struct pci_bus *bus)
-{
- struct device_node *dn;
- struct iommu_table *tbl;
- struct device_node *isa_dn, *isa_dn_orig;
- struct device_node *tmp;
- struct pci_dn *pci;
- int children;
-
- DBG("iommu_bus_setup_pSeries, bus %p, bus->self %p\n", bus, bus->self);
-
- dn = pci_bus_to_OF_node(bus);
- pci = PCI_DN(dn);
-
- if (bus->self) {
- /* This is not a root bus, any setup will be done for the
- * device-side of the bridge in iommu_dev_setup_pSeries().
- */
- return;
- }
-
- /* Check if the ISA bus on the system is under
- * this PHB.
- */
- isa_dn = isa_dn_orig = of_find_node_by_type(NULL, "isa");
-
- while (isa_dn && isa_dn != dn)
- isa_dn = isa_dn->parent;
-
- if (isa_dn_orig)
- of_node_put(isa_dn_orig);
-
- /* Count number of direct PCI children of the PHB.
- * All PCI device nodes have class-code property, so it's
- * an easy way to find them.
- */
- for (children = 0, tmp = dn->child; tmp; tmp = tmp->sibling)
- if (get_property(tmp, "class-code", NULL))
- children++;
-
- DBG("Children: %d\n", children);
-
- /* Calculate amount of DMA window per slot. Each window must be
- * a power of two (due to pci_alloc_consistent requirements).
- *
- * Keep 256MB aside for PHBs with ISA.
- */
-
- if (!isa_dn) {
- /* No ISA/IDE - just set window size and return */
- pci->phb->dma_window_size = 0x80000000ul; /* To be divided */
-
- while (pci->phb->dma_window_size * children > 0x80000000ul)
- pci->phb->dma_window_size >>= 1;
- DBG("No ISA/IDE, window size is 0x%lx\n",
- pci->phb->dma_window_size);
- pci->phb->dma_window_base_cur = 0;
-
- return;
- }
-
- /* If we have ISA, then we probably have an IDE
- * controller too. Allocate a 128MB table but
- * skip the first 128MB to avoid stepping on ISA
- * space.
- */
- pci->phb->dma_window_size = 0x8000000ul;
- pci->phb->dma_window_base_cur = 0x8000000ul;
-
- tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
- iommu_table_setparms(pci->phb, dn, tbl);
- pci->iommu_table = iommu_init_table(tbl);
-
- /* Divide the rest (1.75GB) among the children */
- pci->phb->dma_window_size = 0x80000000ul;
- while (pci->phb->dma_window_size * children > 0x70000000ul)
- pci->phb->dma_window_size >>= 1;
-
- DBG("ISA/IDE, window size is 0x%lx\n", pci->phb->dma_window_size);
-
-}
-
-
-static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
-{
- struct iommu_table *tbl;
- struct device_node *dn, *pdn;
- struct pci_dn *ppci;
- unsigned int *dma_window = NULL;
-
- DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
-
- dn = pci_bus_to_OF_node(bus);
-
- /* Find nearest ibm,dma-window, walking up the device tree */
- for (pdn = dn; pdn != NULL; pdn = pdn->parent) {
- dma_window = (unsigned int *)get_property(pdn, "ibm,dma-window", NULL);
- if (dma_window != NULL)
- break;
- }
-
- if (dma_window == NULL) {
- DBG("iommu_bus_setup_pSeriesLP: bus %s seems to have no ibm,dma-window property\n", dn->full_name);
- return;
- }
-
- ppci = pdn->data;
- if (!ppci->iommu_table) {
- /* Bussubno hasn't been copied yet.
- * Do it now because iommu_table_setparms_lpar needs it.
- */
-
- ppci->bussubno = bus->number;
-
- tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
- GFP_KERNEL);
-
- iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
-
- ppci->iommu_table = iommu_init_table(tbl);
- }
-
- if (pdn != dn)
- PCI_DN(dn)->iommu_table = ppci->iommu_table;
-}
-
-
-static void iommu_dev_setup_pSeries(struct pci_dev *dev)
-{
- struct device_node *dn, *mydn;
- struct iommu_table *tbl;
-
- DBG("iommu_dev_setup_pSeries, dev %p (%s)\n", dev, pci_name(dev));
-
- mydn = dn = pci_device_to_OF_node(dev);
-
- /* If we're the direct child of a root bus, then we need to allocate
- * an iommu table ourselves. The bus setup code should have setup
- * the window sizes already.
- */
- if (!dev->bus->self) {
- DBG(" --> first child, no bridge. Allocating iommu table.\n");
- tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
- iommu_table_setparms(PCI_DN(dn)->phb, dn, tbl);
- PCI_DN(mydn)->iommu_table = iommu_init_table(tbl);
-
- return;
- }
-
- /* If this device is further down the bus tree, search upwards until
- * an already allocated iommu table is found and use that.
- */
-
- while (dn && dn->data && PCI_DN(dn)->iommu_table == NULL)
- dn = dn->parent;
-
- if (dn && dn->data) {
- PCI_DN(mydn)->iommu_table = PCI_DN(dn)->iommu_table;
- } else {
- DBG("iommu_dev_setup_pSeries, dev %p (%s) has no iommu table\n", dev, pci_name(dev));
- }
-}
-
-static int iommu_reconfig_notifier(struct notifier_block *nb, unsigned long action, void *node)
-{
- int err = NOTIFY_OK;
- struct device_node *np = node;
- struct pci_dn *pci = np->data;
-
- switch (action) {
- case PSERIES_RECONFIG_REMOVE:
- if (pci->iommu_table &&
- get_property(np, "ibm,dma-window", NULL))
- iommu_free_table(np);
- break;
- default:
- err = NOTIFY_DONE;
- break;
- }
- return err;
-}
-
-static struct notifier_block iommu_reconfig_nb = {
- .notifier_call = iommu_reconfig_notifier,
-};
-
-static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
-{
- struct device_node *pdn, *dn;
- struct iommu_table *tbl;
- int *dma_window = NULL;
- struct pci_dn *pci;
-
- DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
-
- /* dev setup for LPAR is a little tricky, since the device tree might
- * contain the dma-window properties per-device and not neccesarily
- * for the bus. So we need to search upwards in the tree until we
- * either hit a dma-window property, OR find a parent with a table
- * already allocated.
- */
- dn = pci_device_to_OF_node(dev);
-
- for (pdn = dn; pdn && pdn->data && !PCI_DN(pdn)->iommu_table;
- pdn = pdn->parent) {
- dma_window = (unsigned int *)
- get_property(pdn, "ibm,dma-window", NULL);
- if (dma_window)
- break;
- }
-
- /* Check for parent == NULL so we don't try to setup the empty EADS
- * slots on POWER4 machines.
- */
- if (dma_window == NULL || pdn->parent == NULL) {
- DBG("No dma window for device, linking to parent\n");
- PCI_DN(dn)->iommu_table = PCI_DN(pdn)->iommu_table;
- return;
- } else {
- DBG("Found DMA window, allocating table\n");
- }
-
- pci = pdn->data;
- if (!pci->iommu_table) {
- /* iommu_table_setparms_lpar needs bussubno. */
- pci->bussubno = pci->phb->bus->number;
-
- tbl = (struct iommu_table *)kmalloc(sizeof(struct iommu_table),
- GFP_KERNEL);
-
- iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
-
- pci->iommu_table = iommu_init_table(tbl);
- }
-
- if (pdn != dn)
- PCI_DN(dn)->iommu_table = pci->iommu_table;
-}
-
-static void iommu_bus_setup_null(struct pci_bus *b) { }
-static void iommu_dev_setup_null(struct pci_dev *d) { }
-
-/* These are called very early. */
-void iommu_init_early_pSeries(void)
-{
- if (of_chosen && get_property(of_chosen, "linux,iommu-off", NULL)) {
- /* Direct I/O, IOMMU off */
- ppc_md.iommu_dev_setup = iommu_dev_setup_null;
- ppc_md.iommu_bus_setup = iommu_bus_setup_null;
- pci_direct_iommu_init();
-
- return;
- }
-
- if (systemcfg->platform & PLATFORM_LPAR) {
- if (firmware_has_feature(FW_FEATURE_MULTITCE)) {
- ppc_md.tce_build = tce_buildmulti_pSeriesLP;
- ppc_md.tce_free = tce_freemulti_pSeriesLP;
- } else {
- ppc_md.tce_build = tce_build_pSeriesLP;
- ppc_md.tce_free = tce_free_pSeriesLP;
- }
- ppc_md.iommu_bus_setup = iommu_bus_setup_pSeriesLP;
- ppc_md.iommu_dev_setup = iommu_dev_setup_pSeriesLP;
- } else {
- ppc_md.tce_build = tce_build_pSeries;
- ppc_md.tce_free = tce_free_pSeries;
- ppc_md.iommu_bus_setup = iommu_bus_setup_pSeries;
- ppc_md.iommu_dev_setup = iommu_dev_setup_pSeries;
- }
-
-
- pSeries_reconfig_notifier_register(&iommu_reconfig_nb);
-
- pci_iommu_init();
-}
-
diff --git a/arch/ppc64/kernel/pSeries_lpar.c b/arch/ppc64/kernel/pSeries_lpar.c
deleted file mode 100644
index 268d8362dde..00000000000
--- a/arch/ppc64/kernel/pSeries_lpar.c
+++ /dev/null
@@ -1,517 +0,0 @@
-/*
- * pSeries_lpar.c
- * Copyright (C) 2001 Todd Inglett, IBM Corporation
- *
- * pSeries LPAR support.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#define DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <asm/processor.h>
-#include <asm/mmu.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/abs_addr.h>
-#include <asm/mmu_context.h>
-#include <asm/ppcdebug.h>
-#include <asm/iommu.h>
-#include <asm/tlbflush.h>
-#include <asm/tlb.h>
-#include <asm/prom.h>
-#include <asm/abs_addr.h>
-#include <asm/cputable.h>
-#include <asm/plpar_wrappers.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/* in pSeries_hvCall.S */
-EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
-EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
-
-extern void pSeries_find_serial_port(void);
-
-
-int vtermno; /* virtual terminal# for udbg */
-
-#define __ALIGNED__ __attribute__((__aligned__(sizeof(long))))
-static void udbg_hvsi_putc(unsigned char c)
-{
- /* packet's seqno isn't used anyways */
- uint8_t packet[] __ALIGNED__ = { 0xff, 5, 0, 0, c };
- int rc;
-
- if (c == '\n')
- udbg_hvsi_putc('\r');
-
- do {
- rc = plpar_put_term_char(vtermno, sizeof(packet), packet);
- } while (rc == H_Busy);
-}
-
-static long hvsi_udbg_buf_len;
-static uint8_t hvsi_udbg_buf[256];
-
-static int udbg_hvsi_getc_poll(void)
-{
- unsigned char ch;
- int rc, i;
-
- if (hvsi_udbg_buf_len == 0) {
- rc = plpar_get_term_char(vtermno, &hvsi_udbg_buf_len, hvsi_udbg_buf);
- if (rc != H_Success || hvsi_udbg_buf[0] != 0xff) {
- /* bad read or non-data packet */
- hvsi_udbg_buf_len = 0;
- } else {
- /* remove the packet header */
- for (i = 4; i < hvsi_udbg_buf_len; i++)
- hvsi_udbg_buf[i-4] = hvsi_udbg_buf[i];
- hvsi_udbg_buf_len -= 4;
- }
- }
-
- if (hvsi_udbg_buf_len <= 0 || hvsi_udbg_buf_len > 256) {
- /* no data ready */
- hvsi_udbg_buf_len = 0;
- return -1;
- }
-
- ch = hvsi_udbg_buf[0];
- /* shift remaining data down */
- for (i = 1; i < hvsi_udbg_buf_len; i++) {
- hvsi_udbg_buf[i-1] = hvsi_udbg_buf[i];
- }
- hvsi_udbg_buf_len--;
-
- return ch;
-}
-
-static unsigned char udbg_hvsi_getc(void)
-{
- int ch;
- for (;;) {
- ch = udbg_hvsi_getc_poll();
- if (ch == -1) {
- /* This shouldn't be needed...but... */
- volatile unsigned long delay;
- for (delay=0; delay < 2000000; delay++)
- ;
- } else {
- return ch;
- }
- }
-}
-
-static void udbg_putcLP(unsigned char c)
-{
- char buf[16];
- unsigned long rc;
-
- if (c == '\n')
- udbg_putcLP('\r');
-
- buf[0] = c;
- do {
- rc = plpar_put_term_char(vtermno, 1, buf);
- } while(rc == H_Busy);
-}
-
-/* Buffered chars getc */
-static long inbuflen;
-static long inbuf[2]; /* must be 2 longs */
-
-static int udbg_getc_pollLP(void)
-{
- /* The interface is tricky because it may return up to 16 chars.
- * We save them statically for future calls to udbg_getc().
- */
- char ch, *buf = (char *)inbuf;
- int i;
- long rc;
- if (inbuflen == 0) {
- /* get some more chars. */
- inbuflen = 0;
- rc = plpar_get_term_char(vtermno, &inbuflen, buf);
- if (rc != H_Success)
- inbuflen = 0; /* otherwise inbuflen is garbage */
- }
- if (inbuflen <= 0 || inbuflen > 16) {
- /* Catch error case as well as other oddities (corruption) */
- inbuflen = 0;
- return -1;
- }
- ch = buf[0];
- for (i = 1; i < inbuflen; i++) /* shuffle them down. */
- buf[i-1] = buf[i];
- inbuflen--;
- return ch;
-}
-
-static unsigned char udbg_getcLP(void)
-{
- int ch;
- for (;;) {
- ch = udbg_getc_pollLP();
- if (ch == -1) {
- /* This shouldn't be needed...but... */
- volatile unsigned long delay;
- for (delay=0; delay < 2000000; delay++)
- ;
- } else {
- return ch;
- }
- }
-}
-
-/* call this from early_init() for a working debug console on
- * vterm capable LPAR machines
- */
-void udbg_init_debug_lpar(void)
-{
- vtermno = 0;
- udbg_putc = udbg_putcLP;
- udbg_getc = udbg_getcLP;
- udbg_getc_poll = udbg_getc_pollLP;
-}
-
-/* returns 0 if couldn't find or use /chosen/stdout as console */
-int find_udbg_vterm(void)
-{
- struct device_node *stdout_node;
- u32 *termno;
- char *name;
- int found = 0;
-
- /* find the boot console from /chosen/stdout */
- if (!of_chosen)
- return 0;
- name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
- if (name == NULL)
- return 0;
- stdout_node = of_find_node_by_path(name);
- if (!stdout_node)
- return 0;
-
- /* now we have the stdout node; figure out what type of device it is. */
- name = (char *)get_property(stdout_node, "name", NULL);
- if (!name) {
- printk(KERN_WARNING "stdout node missing 'name' property!\n");
- goto out;
- }
-
- if (strncmp(name, "vty", 3) == 0) {
- if (device_is_compatible(stdout_node, "hvterm1")) {
- termno = (u32 *)get_property(stdout_node, "reg", NULL);
- if (termno) {
- vtermno = termno[0];
- udbg_putc = udbg_putcLP;
- udbg_getc = udbg_getcLP;
- udbg_getc_poll = udbg_getc_pollLP;
- found = 1;
- }
- } else if (device_is_compatible(stdout_node, "hvterm-protocol")) {
- termno = (u32 *)get_property(stdout_node, "reg", NULL);
- if (termno) {
- vtermno = termno[0];
- udbg_putc = udbg_hvsi_putc;
- udbg_getc = udbg_hvsi_getc;
- udbg_getc_poll = udbg_hvsi_getc_poll;
- found = 1;
- }
- }
- } else if (strncmp(name, "serial", 6)) {
- /* XXX fix ISA serial console */
- printk(KERN_WARNING "serial stdout on LPAR ('%s')! "
- "can't print udbg messages\n",
- stdout_node->full_name);
- } else {
- printk(KERN_WARNING "don't know how to print to stdout '%s'\n",
- stdout_node->full_name);
- }
-
-out:
- of_node_put(stdout_node);
- return found;
-}
-
-void vpa_init(int cpu)
-{
- int hwcpu = get_hard_smp_processor_id(cpu);
- unsigned long vpa = (unsigned long)&(paca[cpu].lppaca);
- long ret;
- unsigned long flags;
-
- /* Register the Virtual Processor Area (VPA) */
- flags = 1UL << (63 - 18);
-
- if (cpu_has_feature(CPU_FTR_ALTIVEC))
- paca[cpu].lppaca.vmxregs_in_use = 1;
-
- ret = register_vpa(flags, hwcpu, __pa(vpa));
-
- if (ret)
- printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
- "cpu %d (hw %d) of area %lx returns %ld\n",
- cpu, hwcpu, __pa(vpa), ret);
-}
-
-long pSeries_lpar_hpte_insert(unsigned long hpte_group,
- unsigned long va, unsigned long prpn,
- unsigned long vflags, unsigned long rflags)
-{
- unsigned long lpar_rc;
- unsigned long flags;
- unsigned long slot;
- unsigned long hpte_v, hpte_r;
- unsigned long dummy0, dummy1;
-
- hpte_v = ((va >> 23) << HPTE_V_AVPN_SHIFT) | vflags | HPTE_V_VALID;
- if (vflags & HPTE_V_LARGE)
- hpte_v &= ~(1UL << HPTE_V_AVPN_SHIFT);
-
- hpte_r = (prpn << HPTE_R_RPN_SHIFT) | rflags;
-
- /* Now fill in the actual HPTE */
- /* Set CEC cookie to 0 */
- /* Zero page = 0 */
- /* I-cache Invalidate = 0 */
- /* I-cache synchronize = 0 */
- /* Exact = 0 */
- flags = 0;
-
- /* XXX why is this here? - Anton */
- if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
- hpte_r &= ~_PAGE_COHERENT;
-
- lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
- hpte_r, &slot, &dummy0, &dummy1);
-
- if (unlikely(lpar_rc == H_PTEG_Full))
- return -1;
-
- /*
- * Since we try and ioremap PHBs we don't own, the pte insert
- * will fail. However we must catch the failure in hash_page
- * or we will loop forever, so return -2 in this case.
- */
- if (unlikely(lpar_rc != H_Success))
- return -2;
-
- /* Because of iSeries, we have to pass down the secondary
- * bucket bit here as well
- */
- return (slot & 7) | (!!(vflags & HPTE_V_SECONDARY) << 3);
-}
-
-static DEFINE_SPINLOCK(pSeries_lpar_tlbie_lock);
-
-static long pSeries_lpar_hpte_remove(unsigned long hpte_group)
-{
- unsigned long slot_offset;
- unsigned long lpar_rc;
- int i;
- unsigned long dummy1, dummy2;
-
- /* pick a random slot to start at */
- slot_offset = mftb() & 0x7;
-
- for (i = 0; i < HPTES_PER_GROUP; i++) {
-
- /* don't remove a bolted entry */
- lpar_rc = plpar_pte_remove(H_ANDCOND, hpte_group + slot_offset,
- (0x1UL << 4), &dummy1, &dummy2);
-
- if (lpar_rc == H_Success)
- return i;
-
- BUG_ON(lpar_rc != H_Not_Found);
-
- slot_offset++;
- slot_offset &= 0x7;
- }
-
- return -1;
-}
-
-static void pSeries_lpar_hptab_clear(void)
-{
- unsigned long size_bytes = 1UL << ppc64_pft_size;
- unsigned long hpte_count = size_bytes >> 4;
- unsigned long dummy1, dummy2;
- int i;
-
- /* TODO: Use bulk call */
- for (i = 0; i < hpte_count; i++)
- plpar_pte_remove(0, i, 0, &dummy1, &dummy2);
-}
-
-/*
- * NOTE: for updatepp ops we are fortunate that the linux "newpp" bits and
- * the low 3 bits of flags happen to line up. So no transform is needed.
- * We can probably optimize here and assume the high bits of newpp are
- * already zero. For now I am paranoid.
- */
-static long pSeries_lpar_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long va, int large, int local)
-{
- unsigned long lpar_rc;
- unsigned long flags = (newpp & 7) | H_AVPN;
- unsigned long avpn = va >> 23;
-
- if (large)
- avpn &= ~0x1UL;
-
- lpar_rc = plpar_pte_protect(flags, slot, (avpn << 7));
-
- if (lpar_rc == H_Not_Found)
- return -1;
-
- BUG_ON(lpar_rc != H_Success);
-
- return 0;
-}
-
-static unsigned long pSeries_lpar_hpte_getword0(unsigned long slot)
-{
- unsigned long dword0;
- unsigned long lpar_rc;
- unsigned long dummy_word1;
- unsigned long flags;
-
- /* Read 1 pte at a time */
- /* Do not need RPN to logical page translation */
- /* No cross CEC PFT access */
- flags = 0;
-
- lpar_rc = plpar_pte_read(flags, slot, &dword0, &dummy_word1);
-
- BUG_ON(lpar_rc != H_Success);
-
- return dword0;
-}
-
-static long pSeries_lpar_hpte_find(unsigned long vpn)
-{
- unsigned long hash;
- unsigned long i, j;
- long slot;
- unsigned long hpte_v;
-
- hash = hpt_hash(vpn, 0);
-
- for (j = 0; j < 2; j++) {
- slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
- for (i = 0; i < HPTES_PER_GROUP; i++) {
- hpte_v = pSeries_lpar_hpte_getword0(slot);
-
- if ((HPTE_V_AVPN_VAL(hpte_v) == (vpn >> 11))
- && (hpte_v & HPTE_V_VALID)
- && (!!(hpte_v & HPTE_V_SECONDARY) == j)) {
- /* HPTE matches */
- if (j)
- slot = -slot;
- return slot;
- }
- ++slot;
- }
- hash = ~hash;
- }
-
- return -1;
-}
-
-static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
- unsigned long ea)
-{
- unsigned long lpar_rc;
- unsigned long vsid, va, vpn, flags;
- long slot;
-
- vsid = get_kernel_vsid(ea);
- va = (vsid << 28) | (ea & 0x0fffffff);
- vpn = va >> PAGE_SHIFT;
-
- slot = pSeries_lpar_hpte_find(vpn);
- BUG_ON(slot == -1);
-
- flags = newpp & 7;
- lpar_rc = plpar_pte_protect(flags, slot, 0);
-
- BUG_ON(lpar_rc != H_Success);
-}
-
-static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
- int large, int local)
-{
- unsigned long avpn = va >> 23;
- unsigned long lpar_rc;
- unsigned long dummy1, dummy2;
-
- if (large)
- avpn &= ~0x1UL;
-
- lpar_rc = plpar_pte_remove(H_AVPN, slot, (avpn << 7), &dummy1,
- &dummy2);
-
- if (lpar_rc == H_Not_Found)
- return;
-
- BUG_ON(lpar_rc != H_Success);
-}
-
-/*
- * Take a spinlock around flushes to avoid bouncing the hypervisor tlbie
- * lock.
- */
-void pSeries_lpar_flush_hash_range(unsigned long number, int local)
-{
- int i;
- unsigned long flags = 0;
- struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
- int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
-
- if (lock_tlbie)
- spin_lock_irqsave(&pSeries_lpar_tlbie_lock, flags);
-
- for (i = 0; i < number; i++)
- flush_hash_page(batch->vaddr[i], batch->pte[i], local);
-
- if (lock_tlbie)
- spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
-}
-
-void hpte_init_lpar(void)
-{
- ppc_md.hpte_invalidate = pSeries_lpar_hpte_invalidate;
- ppc_md.hpte_updatepp = pSeries_lpar_hpte_updatepp;
- ppc_md.hpte_updateboltedpp = pSeries_lpar_hpte_updateboltedpp;
- ppc_md.hpte_insert = pSeries_lpar_hpte_insert;
- ppc_md.hpte_remove = pSeries_lpar_hpte_remove;
- ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range;
- ppc_md.hpte_clear_all = pSeries_lpar_hptab_clear;
-
- htab_finish_init();
-}
diff --git a/arch/ppc64/kernel/pSeries_nvram.c b/arch/ppc64/kernel/pSeries_nvram.c
deleted file mode 100644
index 18abfb1f4e2..00000000000
--- a/arch/ppc64/kernel/pSeries_nvram.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * c 2001 PPC 64 Team, 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.
- *
- * /dev/nvram driver for PPC64
- *
- * This perhaps should live in drivers/char
- */
-
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <asm/uaccess.h>
-#include <asm/nvram.h>
-#include <asm/rtas.h>
-#include <asm/prom.h>
-#include <asm/machdep.h>
-
-static unsigned int nvram_size;
-static int nvram_fetch, nvram_store;
-static char nvram_buf[NVRW_CNT]; /* assume this is in the first 4GB */
-static DEFINE_SPINLOCK(nvram_lock);
-
-
-static ssize_t pSeries_nvram_read(char *buf, size_t count, loff_t *index)
-{
- unsigned int i;
- unsigned long len;
- int done;
- unsigned long flags;
- char *p = buf;
-
-
- if (nvram_size == 0 || nvram_fetch == RTAS_UNKNOWN_SERVICE)
- return -ENODEV;
-
- if (*index >= nvram_size)
- return 0;
-
- i = *index;
- if (i + count > nvram_size)
- count = nvram_size - i;
-
- spin_lock_irqsave(&nvram_lock, flags);
-
- for (; count != 0; count -= len) {
- len = count;
- if (len > NVRW_CNT)
- len = NVRW_CNT;
-
- if ((rtas_call(nvram_fetch, 3, 2, &done, i, __pa(nvram_buf),
- len) != 0) || len != done) {
- spin_unlock_irqrestore(&nvram_lock, flags);
- return -EIO;
- }
-
- memcpy(p, nvram_buf, len);
-
- p += len;
- i += len;
- }
-
- spin_unlock_irqrestore(&nvram_lock, flags);
-
- *index = i;
- return p - buf;
-}
-
-static ssize_t pSeries_nvram_write(char *buf, size_t count, loff_t *index)
-{
- unsigned int i;
- unsigned long len;
- int done;
- unsigned long flags;
- const char *p = buf;
-
- if (nvram_size == 0 || nvram_store == RTAS_UNKNOWN_SERVICE)
- return -ENODEV;
-
- if (*index >= nvram_size)
- return 0;
-
- i = *index;
- if (i + count > nvram_size)
- count = nvram_size - i;
-
- spin_lock_irqsave(&nvram_lock, flags);
-
- for (; count != 0; count -= len) {
- len = count;
- if (len > NVRW_CNT)
- len = NVRW_CNT;
-
- memcpy(nvram_buf, p, len);
-
- if ((rtas_call(nvram_store, 3, 2, &done, i, __pa(nvram_buf),
- len) != 0) || len != done) {
- spin_unlock_irqrestore(&nvram_lock, flags);
- return -EIO;
- }
-
- p += len;
- i += len;
- }
- spin_unlock_irqrestore(&nvram_lock, flags);
-
- *index = i;
- return p - buf;
-}
-
-static ssize_t pSeries_nvram_get_size(void)
-{
- return nvram_size ? nvram_size : -ENODEV;
-}
-
-int __init pSeries_nvram_init(void)
-{
- struct device_node *nvram;
- unsigned int *nbytes_p, proplen;
-
- nvram = of_find_node_by_type(NULL, "nvram");
- if (nvram == NULL)
- return -ENODEV;
-
- nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
- if (nbytes_p == NULL || proplen != sizeof(unsigned int))
- return -EIO;
-
- nvram_size = *nbytes_p;
-
- nvram_fetch = rtas_token("nvram-fetch");
- nvram_store = rtas_token("nvram-store");
- printk(KERN_INFO "PPC64 nvram contains %d bytes\n", nvram_size);
- of_node_put(nvram);
-
- ppc_md.nvram_read = pSeries_nvram_read;
- ppc_md.nvram_write = pSeries_nvram_write;
- ppc_md.nvram_size = pSeries_nvram_get_size;
-
- return 0;
-}
diff --git a/arch/ppc64/kernel/pSeries_pci.c b/arch/ppc64/kernel/pSeries_pci.c
deleted file mode 100644
index 2dd477eb1c5..00000000000
--- a/arch/ppc64/kernel/pSeries_pci.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * arch/ppc64/kernel/pSeries_pci.c
- *
- * Copyright (C) 2001 Dave Engebretsen, IBM Corporation
- * Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * pSeries specific routines for PCI.
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/string.h>
-
-#include <asm/pci-bridge.h>
-#include <asm/prom.h>
-#include <asm/ppc-pci.h>
-
-static int __initdata s7a_workaround = -1;
-
-#if 0
-void pcibios_name_device(struct pci_dev *dev)
-{
- struct device_node *dn;
-
- /*
- * Add IBM loc code (slot) as a prefix to the device names for service
- */
- dn = pci_device_to_OF_node(dev);
- if (dn) {
- char *loc_code = get_property(dn, "ibm,loc-code", 0);
- if (loc_code) {
- int loc_len = strlen(loc_code);
- if (loc_len < sizeof(dev->dev.name)) {
- memmove(dev->dev.name+loc_len+1, dev->dev.name,
- sizeof(dev->dev.name)-loc_len-1);
- memcpy(dev->dev.name, loc_code, loc_len);
- dev->dev.name[loc_len] = ' ';
- dev->dev.name[sizeof(dev->dev.name)-1] = '\0';
- }
- }
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
-#endif
-
-static void __init check_s7a(void)
-{
- struct device_node *root;
- char *model;
-
- s7a_workaround = 0;
- root = of_find_node_by_path("/");
- if (root) {
- model = get_property(root, "model", NULL);
- if (model && !strcmp(model, "IBM,7013-S7A"))
- s7a_workaround = 1;
- of_node_put(root);
- }
-}
-
-void __devinit pSeries_irq_bus_setup(struct pci_bus *bus)
-{
- struct pci_dev *dev;
-
- if (s7a_workaround < 0)
- check_s7a();
- list_for_each_entry(dev, &bus->devices, bus_list) {
- pci_read_irq_line(dev);
- if (s7a_workaround) {
- if (dev->irq > 16) {
- dev->irq -= 3;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
- dev->irq);
- }
- }
- }
-}
-
-static void __init pSeries_request_regions(void)
-{
- if (!isa_io_base)
- return;
-
- request_region(0x20,0x20,"pic1");
- request_region(0xa0,0x20,"pic2");
- request_region(0x00,0x20,"dma1");
- request_region(0x40,0x20,"timer");
- request_region(0x80,0x10,"dma page reg");
- request_region(0xc0,0x20,"dma2");
-}
-
-void __init pSeries_final_fixup(void)
-{
- phbs_remap_io();
- pSeries_request_regions();
-
- pci_addr_cache_build();
-}
-
-/*
- * Assume the winbond 82c105 is the IDE controller on a
- * p610. We should probably be more careful in case
- * someone tries to plug in a similar adapter.
- */
-static void fixup_winbond_82c105(struct pci_dev* dev)
-{
- int i;
- unsigned int reg;
-
- if (!(systemcfg->platform & PLATFORM_PSERIES))
- return;
-
- printk("Using INTC for W82c105 IDE controller.\n");
- pci_read_config_dword(dev, 0x40, &reg);
- /* Enable LEGIRQ to use INTC instead of ISA interrupts */
- pci_write_config_dword(dev, 0x40, reg | (1<<11));
-
- for (i = 0; i < DEVICE_COUNT_RESOURCE; ++i) {
- /* zap the 2nd function of the winbond chip */
- if (dev->resource[i].flags & IORESOURCE_IO
- && dev->bus->number == 0 && dev->devfn == 0x81)
- dev->resource[i].flags &= ~IORESOURCE_IO;
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
- fixup_winbond_82c105);
diff --git a/arch/ppc64/kernel/pSeries_reconfig.c b/arch/ppc64/kernel/pSeries_reconfig.c
deleted file mode 100644
index 58c61219d08..00000000000
--- a/arch/ppc64/kernel/pSeries_reconfig.c
+++ /dev/null
@@ -1,426 +0,0 @@
-/*
- * pSeries_reconfig.c - support for dynamic reconfiguration (including PCI
- * Hotplug and Dynamic Logical Partitioning on RPA platforms).
- *
- * Copyright (C) 2005 Nathan Lynch
- * Copyright (C) 2005 IBM Corporation
- *
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/kref.h>
-#include <linux/notifier.h>
-#include <linux/proc_fs.h>
-
-#include <asm/prom.h>
-#include <asm/pSeries_reconfig.h>
-#include <asm/uaccess.h>
-
-
-
-/*
- * Routines for "runtime" addition and removal of device tree nodes.
- */
-#ifdef CONFIG_PROC_DEVICETREE
-/*
- * Add a node to /proc/device-tree.
- */
-static void add_node_proc_entries(struct device_node *np)
-{
- struct proc_dir_entry *ent;
-
- ent = proc_mkdir(strrchr(np->full_name, '/') + 1, np->parent->pde);
- if (ent)
- proc_device_tree_add_node(np, ent);
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
- struct property *pp = np->properties;
- struct device_node *parent = np->parent;
-
- while (pp) {
- remove_proc_entry(pp->name, np->pde);
- pp = pp->next;
- }
- if (np->pde)
- remove_proc_entry(np->pde->name, parent->pde);
-}
-#else /* !CONFIG_PROC_DEVICETREE */
-static void add_node_proc_entries(struct device_node *np)
-{
- return;
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
- return;
-}
-#endif /* CONFIG_PROC_DEVICETREE */
-
-/**
- * derive_parent - basically like dirname(1)
- * @path: the full_name of a node to be added to the tree
- *
- * Returns the node which should be the parent of the node
- * described by path. E.g., for path = "/foo/bar", returns
- * the node with full_name = "/foo".
- */
-static struct device_node *derive_parent(const char *path)
-{
- struct device_node *parent = NULL;
- char *parent_path = "/";
- size_t parent_path_len = strrchr(path, '/') - path + 1;
-
- /* reject if path is "/" */
- if (!strcmp(path, "/"))
- return ERR_PTR(-EINVAL);
-
- if (strrchr(path, '/') != path) {
- parent_path = kmalloc(parent_path_len, GFP_KERNEL);
- if (!parent_path)
- return ERR_PTR(-ENOMEM);
- strlcpy(parent_path, path, parent_path_len);
- }
- parent = of_find_node_by_path(parent_path);
- if (!parent)
- return ERR_PTR(-EINVAL);
- if (strcmp(parent_path, "/"))
- kfree(parent_path);
- return parent;
-}
-
-static struct notifier_block *pSeries_reconfig_chain;
-
-int pSeries_reconfig_notifier_register(struct notifier_block *nb)
-{
- return notifier_chain_register(&pSeries_reconfig_chain, nb);
-}
-
-void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
-{
- notifier_chain_unregister(&pSeries_reconfig_chain, nb);
-}
-
-static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
-{
- struct device_node *np;
- int err = -ENOMEM;
-
- np = kzalloc(sizeof(*np), GFP_KERNEL);
- if (!np)
- goto out_err;
-
- np->full_name = kmalloc(strlen(path) + 1, GFP_KERNEL);
- if (!np->full_name)
- goto out_err;
-
- strcpy(np->full_name, path);
-
- np->properties = proplist;
- OF_MARK_DYNAMIC(np);
- kref_init(&np->kref);
-
- np->parent = derive_parent(path);
- if (IS_ERR(np->parent)) {
- err = PTR_ERR(np->parent);
- goto out_err;
- }
-
- err = notifier_call_chain(&pSeries_reconfig_chain,
- PSERIES_RECONFIG_ADD, np);
- if (err == NOTIFY_BAD) {
- printk(KERN_ERR "Failed to add device node %s\n", path);
- err = -ENOMEM; /* For now, safe to assume kmalloc failure */
- goto out_err;
- }
-
- of_attach_node(np);
-
- add_node_proc_entries(np);
-
- of_node_put(np->parent);
-
- return 0;
-
-out_err:
- if (np) {
- of_node_put(np->parent);
- kfree(np->full_name);
- kfree(np);
- }
- return err;
-}
-
-static int pSeries_reconfig_remove_node(struct device_node *np)
-{
- struct device_node *parent, *child;
-
- parent = of_get_parent(np);
- if (!parent)
- return -EINVAL;
-
- if ((child = of_get_next_child(np, NULL))) {
- of_node_put(child);
- return -EBUSY;
- }
-
- remove_node_proc_entries(np);
-
- notifier_call_chain(&pSeries_reconfig_chain,
- PSERIES_RECONFIG_REMOVE, np);
- of_detach_node(np);
-
- of_node_put(parent);
- of_node_put(np); /* Must decrement the refcount */
- return 0;
-}
-
-/*
- * /proc/ppc64/ofdt - yucky binary interface for adding and removing
- * OF device nodes. Should be deprecated as soon as we get an
- * in-kernel wrapper for the RTAS ibm,configure-connector call.
- */
-
-static void release_prop_list(const struct property *prop)
-{
- struct property *next;
- for (; prop; prop = next) {
- next = prop->next;
- kfree(prop->name);
- kfree(prop->value);
- kfree(prop);
- }
-
-}
-
-/**
- * parse_next_property - process the next property from raw input buffer
- * @buf: input buffer, must be nul-terminated
- * @end: end of the input buffer + 1, for validation
- * @name: return value; set to property name in buf
- * @length: return value; set to length of value
- * @value: return value; set to the property value in buf
- *
- * Note that the caller must make copies of the name and value returned,
- * this function does no allocation or copying of the data. Return value
- * is set to the next name in buf, or NULL on error.
- */
-static char * parse_next_property(char *buf, char *end, char **name, int *length,
- unsigned char **value)
-{
- char *tmp;
-
- *name = buf;
-
- tmp = strchr(buf, ' ');
- if (!tmp) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- *tmp = '\0';
-
- if (++tmp >= end) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
-
- /* now we're on the length */
- *length = -1;
- *length = simple_strtoul(tmp, &tmp, 10);
- if (*length == -1) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- if (*tmp != ' ' || ++tmp >= end) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
-
- /* now we're on the value */
- *value = tmp;
- tmp += *length;
- if (tmp > end) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- else if (tmp < end && *tmp != ' ' && *tmp != '\0') {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- tmp++;
-
- /* and now we should be on the next name, or the end */
- return tmp;
-}
-
-static struct property *new_property(const char *name, const int length,
- const unsigned char *value, struct property *last)
-{
- struct property *new = kmalloc(sizeof(*new), GFP_KERNEL);
-
- if (!new)
- return NULL;
- memset(new, 0, sizeof(*new));
-
- if (!(new->name = kmalloc(strlen(name) + 1, GFP_KERNEL)))
- goto cleanup;
- if (!(new->value = kmalloc(length + 1, GFP_KERNEL)))
- goto cleanup;
-
- strcpy(new->name, name);
- memcpy(new->value, value, length);
- *(((char *)new->value) + length) = 0;
- new->length = length;
- new->next = last;
- return new;
-
-cleanup:
- if (new->name)
- kfree(new->name);
- if (new->value)
- kfree(new->value);
- kfree(new);
- return NULL;
-}
-
-static int do_add_node(char *buf, size_t bufsize)
-{
- char *path, *end, *name;
- struct device_node *np;
- struct property *prop = NULL;
- unsigned char* value;
- int length, rv = 0;
-
- end = buf + bufsize;
- path = buf;
- buf = strchr(buf, ' ');
- if (!buf)
- return -EINVAL;
- *buf = '\0';
- buf++;
-
- if ((np = of_find_node_by_path(path))) {
- of_node_put(np);
- return -EINVAL;
- }
-
- /* rv = build_prop_list(tmp, bufsize - (tmp - buf), &proplist); */
- while (buf < end &&
- (buf = parse_next_property(buf, end, &name, &length, &value))) {
- struct property *last = prop;
-
- prop = new_property(name, length, value, last);
- if (!prop) {
- rv = -ENOMEM;
- prop = last;
- goto out;
- }
- }
- if (!buf) {
- rv = -EINVAL;
- goto out;
- }
-
- rv = pSeries_reconfig_add_node(path, prop);
-
-out:
- if (rv)
- release_prop_list(prop);
- return rv;
-}
-
-static int do_remove_node(char *buf)
-{
- struct device_node *node;
- int rv = -ENODEV;
-
- if ((node = of_find_node_by_path(buf)))
- rv = pSeries_reconfig_remove_node(node);
-
- of_node_put(node);
- return rv;
-}
-
-/**
- * ofdt_write - perform operations on the Open Firmware device tree
- *
- * @file: not used
- * @buf: command and arguments
- * @count: size of the command buffer
- * @off: not used
- *
- * Operations supported at this time are addition and removal of
- * whole nodes along with their properties. Operations on individual
- * properties are not implemented (yet).
- */
-static ssize_t ofdt_write(struct file *file, const char __user *buf, size_t count,
- loff_t *off)
-{
- int rv = 0;
- char *kbuf;
- char *tmp;
-
- if (!(kbuf = kmalloc(count + 1, GFP_KERNEL))) {
- rv = -ENOMEM;
- goto out;
- }
- if (copy_from_user(kbuf, buf, count)) {
- rv = -EFAULT;
- goto out;
- }
-
- kbuf[count] = '\0';
-
- tmp = strchr(kbuf, ' ');
- if (!tmp) {
- rv = -EINVAL;
- goto out;
- }
- *tmp = '\0';
- tmp++;
-
- if (!strcmp(kbuf, "add_node"))
- rv = do_add_node(tmp, count - (tmp - kbuf));
- else if (!strcmp(kbuf, "remove_node"))
- rv = do_remove_node(tmp);
- else
- rv = -EINVAL;
-out:
- kfree(kbuf);
- return rv ? rv : count;
-}
-
-static struct file_operations ofdt_fops = {
- .write = ofdt_write
-};
-
-/* create /proc/ppc64/ofdt write-only by root */
-static int proc_ppc64_create_ofdt(void)
-{
- struct proc_dir_entry *ent;
-
- if (!(systemcfg->platform & PLATFORM_PSERIES))
- return 0;
-
- ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL);
- if (ent) {
- ent->nlink = 1;
- ent->data = NULL;
- ent->size = 0;
- ent->proc_fops = &ofdt_fops;
- }
-
- return 0;
-}
-__initcall(proc_ppc64_create_ofdt);
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
deleted file mode 100644
index 5a9fe96f9f6..00000000000
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- * linux/arch/ppc/kernel/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
- *
- * 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.
- */
-
-/*
- * bootup setup stuff..
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/cpu.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/tty.h>
-#include <linux/major.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/console.h>
-#include <linux/pci.h>
-#include <linux/utsname.h>
-#include <linux/adb.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/prom.h>
-#include <asm/rtas.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/irq.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/plpar_wrappers.h>
-#include <asm/xics.h>
-#include <asm/firmware.h>
-#include <asm/pmc.h>
-#include <asm/mpic.h>
-#include <asm/ppc-pci.h>
-
-#include "i8259.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-extern void find_udbg_vterm(void);
-extern void system_reset_fwnmi(void); /* from head.S */
-extern void machine_check_fwnmi(void); /* from head.S */
-extern void generic_find_legacy_serial_ports(u64 *physport,
- unsigned int *default_speed);
-
-int fwnmi_active; /* TRUE if an FWNMI handler is present */
-
-extern void pSeries_system_reset_exception(struct pt_regs *regs);
-extern int pSeries_machine_check_exception(struct pt_regs *regs);
-
-static int pseries_shared_idle(void);
-static int pseries_dedicated_idle(void);
-
-static volatile void __iomem * chrp_int_ack_special;
-struct mpic *pSeries_mpic;
-
-void pSeries_get_cpuinfo(struct seq_file *m)
-{
- struct device_node *root;
- const char *model = "";
-
- root = of_find_node_by_path("/");
- if (root)
- model = get_property(root, "model", NULL);
- seq_printf(m, "machine\t\t: CHRP %s\n", model);
- of_node_put(root);
-}
-
-/* Initialize firmware assisted non-maskable interrupts if
- * the firmware supports this feature.
- *
- */
-static void __init fwnmi_init(void)
-{
- int ret;
- int ibm_nmi_register = rtas_token("ibm,nmi-register");
- if (ibm_nmi_register == RTAS_UNKNOWN_SERVICE)
- return;
- ret = rtas_call(ibm_nmi_register, 2, 1, NULL,
- __pa((unsigned long)system_reset_fwnmi),
- __pa((unsigned long)machine_check_fwnmi));
- if (ret == 0)
- fwnmi_active = 1;
-}
-
-static int pSeries_irq_cascade(struct pt_regs *regs, void *data)
-{
- if (chrp_int_ack_special)
- return readb(chrp_int_ack_special);
- else
- return i8259_irq(smp_processor_id());
-}
-
-static void __init pSeries_init_mpic(void)
-{
- unsigned int *addrp;
- struct device_node *np;
- int i;
-
- /* All ISUs are setup, complete initialization */
- mpic_init(pSeries_mpic);
-
- /* Check what kind of cascade ACK we have */
- if (!(np = of_find_node_by_name(NULL, "pci"))
- || !(addrp = (unsigned int *)
- get_property(np, "8259-interrupt-acknowledge", NULL)))
- printk(KERN_ERR "Cannot find pci to get ack address\n");
- else
- chrp_int_ack_special = ioremap(addrp[prom_n_addr_cells(np)-1], 1);
- of_node_put(np);
-
- /* Setup the legacy interrupts & controller */
- for (i = 0; i < NUM_ISA_INTERRUPTS; i++)
- irq_desc[i].handler = &i8259_pic;
- i8259_init(0);
-
- /* Hook cascade to mpic */
- mpic_setup_cascade(NUM_ISA_INTERRUPTS, pSeries_irq_cascade, NULL);
-}
-
-static void __init pSeries_setup_mpic(void)
-{
- unsigned int *opprop;
- unsigned long openpic_addr = 0;
- unsigned char senses[NR_IRQS - NUM_ISA_INTERRUPTS];
- struct device_node *root;
- int irq_count;
-
- /* Find the Open PIC if present */
- root = of_find_node_by_path("/");
- opprop = (unsigned int *) get_property(root, "platform-open-pic", NULL);
- if (opprop != 0) {
- int n = prom_n_addr_cells(root);
-
- for (openpic_addr = 0; n > 0; --n)
- openpic_addr = (openpic_addr << 32) + *opprop++;
- printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
- }
- of_node_put(root);
-
- BUG_ON(openpic_addr == 0);
-
- /* Get the sense values from OF */
- prom_get_irq_senses(senses, NUM_ISA_INTERRUPTS, NR_IRQS);
-
- /* Setup the openpic driver */
- irq_count = NR_IRQS - NUM_ISA_INTERRUPTS - 4; /* leave room for IPIs */
- pSeries_mpic = mpic_alloc(openpic_addr, MPIC_PRIMARY,
- 16, 16, irq_count, /* isu size, irq offset, irq count */
- NR_IRQS - 4, /* ipi offset */
- senses, irq_count, /* sense & sense size */
- " MPIC ");
-}
-
-static void pseries_lpar_enable_pmcs(void)
-{
- unsigned long set, reset;
-
- power4_enable_pmcs();
-
- set = 1UL << 63;
- reset = 0;
- plpar_hcall_norets(H_PERFMON, set, reset);
-
- /* instruct hypervisor to maintain PMCs */
- if (firmware_has_feature(FW_FEATURE_SPLPAR))
- get_paca()->lppaca.pmcregs_in_use = 1;
-}
-
-static void __init pSeries_setup_arch(void)
-{
- /* Fixup ppc_md depending on the type of interrupt controller */
- if (ppc64_interrupt_controller == IC_OPEN_PIC) {
- ppc_md.init_IRQ = pSeries_init_mpic;
- ppc_md.get_irq = mpic_get_irq;
- ppc_md.cpu_irq_down = mpic_teardown_this_cpu;
- /* Allocate the mpic now, so that find_and_init_phbs() can
- * fill the ISUs */
- pSeries_setup_mpic();
- } else {
- ppc_md.init_IRQ = xics_init_IRQ;
- ppc_md.get_irq = xics_get_irq;
- ppc_md.cpu_irq_down = xics_teardown_cpu;
- }
-
-#ifdef CONFIG_SMP
- smp_init_pSeries();
-#endif
- /* openpic global configuration register (64-bit format). */
- /* openpic Interrupt Source Unit pointer (64-bit format). */
- /* python0 facility area (mmio) (64-bit format) REAL address. */
-
- /* init to some ~sane value until calibrate_delay() runs */
- loops_per_jiffy = 50000000;
-
- if (ROOT_DEV == 0) {
- printk("No ramdisk, default root is /dev/sda2\n");
- ROOT_DEV = Root_SDA2;
- }
-
- fwnmi_init();
-
- /* Find and initialize PCI host bridges */
- init_pci_config_tokens();
- find_and_init_phbs();
- eeh_init();
-
-#ifdef CONFIG_DUMMY_CONSOLE
- conswitchp = &dummy_con;
-#endif
-
- pSeries_nvram_init();
-
- /* Choose an idle loop */
- if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
- vpa_init(boot_cpuid);
- if (get_paca()->lppaca.shared_proc) {
- printk(KERN_INFO "Using shared processor idle loop\n");
- ppc_md.idle_loop = pseries_shared_idle;
- } else {
- printk(KERN_INFO "Using dedicated idle loop\n");
- ppc_md.idle_loop = pseries_dedicated_idle;
- }
- } else {
- printk(KERN_INFO "Using default idle loop\n");
- ppc_md.idle_loop = default_idle;
- }
-
- if (systemcfg->platform & PLATFORM_LPAR)
- ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
- else
- ppc_md.enable_pmcs = power4_enable_pmcs;
-}
-
-static int __init pSeries_init_panel(void)
-{
- /* Manually leave the kernel version on the panel. */
- ppc_md.progress("Linux ppc64\n", 0);
- ppc_md.progress(system_utsname.version, 0);
-
- return 0;
-}
-arch_initcall(pSeries_init_panel);
-
-
-/* Build up the ppc64_firmware_features bitmask field
- * using contents of device-tree/ibm,hypertas-functions.
- * Ultimately this functionality may be moved into prom.c prom_init().
- */
-static void __init fw_feature_init(void)
-{
- struct device_node * dn;
- char * hypertas;
- unsigned int len;
-
- DBG(" -> fw_feature_init()\n");
-
- ppc64_firmware_features = 0;
- dn = of_find_node_by_path("/rtas");
- if (dn == NULL) {
- printk(KERN_ERR "WARNING ! Cannot find RTAS in device-tree !\n");
- goto no_rtas;
- }
-
- hypertas = get_property(dn, "ibm,hypertas-functions", &len);
- if (hypertas) {
- while (len > 0){
- int i, hypertas_len;
- /* check value against table of strings */
- for(i=0; i < FIRMWARE_MAX_FEATURES ;i++) {
- if ((firmware_features_table[i].name) &&
- (strcmp(firmware_features_table[i].name,hypertas))==0) {
- /* we have a match */
- ppc64_firmware_features |=
- (firmware_features_table[i].val);
- break;
- }
- }
- hypertas_len = strlen(hypertas);
- len -= hypertas_len +1;
- hypertas+= hypertas_len +1;
- }
- }
-
- of_node_put(dn);
- no_rtas:
- printk(KERN_INFO "firmware_features = 0x%lx\n",
- ppc64_firmware_features);
-
- DBG(" <- fw_feature_init()\n");
-}
-
-
-static void __init pSeries_discover_pic(void)
-{
- struct device_node *np;
- char *typep;
-
- /*
- * Setup interrupt mapping options that are needed for finish_device_tree
- * to properly parse the OF interrupt tree & do the virtual irq mapping
- */
- __irq_offset_value = NUM_ISA_INTERRUPTS;
- ppc64_interrupt_controller = IC_INVALID;
- for (np = NULL; (np = of_find_node_by_name(np, "interrupt-controller"));) {
- typep = (char *)get_property(np, "compatible", NULL);
- if (strstr(typep, "open-pic"))
- ppc64_interrupt_controller = IC_OPEN_PIC;
- else if (strstr(typep, "ppc-xicp"))
- ppc64_interrupt_controller = IC_PPC_XIC;
- else
- printk("pSeries_discover_pic: failed to recognize"
- " interrupt-controller\n");
- break;
- }
-}
-
-static void pSeries_mach_cpu_die(void)
-{
- local_irq_disable();
- idle_task_exit();
- /* Some hardware requires clearing the CPPR, while other hardware does not
- * it is safe either way
- */
- pSeriesLP_cppr_info(0, 0);
- rtas_stop_self();
- /* Should never get here... */
- BUG();
- for(;;);
-}
-
-
-/*
- * Early initialization. Relocation is on but do not reference unbolted pages
- */
-static void __init pSeries_init_early(void)
-{
- void *comport;
- int iommu_off = 0;
- unsigned int default_speed;
- u64 physport;
-
- DBG(" -> pSeries_init_early()\n");
-
- fw_feature_init();
-
- if (systemcfg->platform & PLATFORM_LPAR)
- hpte_init_lpar();
- else {
- hpte_init_native();
- iommu_off = (of_chosen &&
- get_property(of_chosen, "linux,iommu-off", NULL));
- }
-
- generic_find_legacy_serial_ports(&physport, &default_speed);
-
- if (systemcfg->platform & PLATFORM_LPAR)
- find_udbg_vterm();
- else if (physport) {
- /* Map the uart for udbg. */
- comport = (void *)ioremap(physport, 16);
- udbg_init_uart(comport, default_speed);
-
- DBG("Hello World !\n");
- }
-
-
- iommu_init_early_pSeries();
-
- pSeries_discover_pic();
-
- DBG(" <- pSeries_init_early()\n");
-}
-
-
-static int pSeries_check_legacy_ioport(unsigned int baseport)
-{
- struct device_node *np;
-
-#define I8042_DATA_REG 0x60
-#define FDC_BASE 0x3f0
-
-
- switch(baseport) {
- case I8042_DATA_REG:
- np = of_find_node_by_type(NULL, "8042");
- if (np == NULL)
- return -ENODEV;
- of_node_put(np);
- break;
- case FDC_BASE:
- np = of_find_node_by_type(NULL, "fdc");
- if (np == NULL)
- return -ENODEV;
- of_node_put(np);
- break;
- }
- return 0;
-}
-
-/*
- * Called very early, MMU is off, device-tree isn't unflattened
- */
-extern struct machdep_calls pSeries_md;
-
-static int __init pSeries_probe(int platform)
-{
- if (platform != PLATFORM_PSERIES &&
- platform != PLATFORM_PSERIES_LPAR)
- return 0;
-
- /* if we have some ppc_md fixups for LPAR to do, do
- * it here ...
- */
-
- return 1;
-}
-
-DECLARE_PER_CPU(unsigned long, smt_snooze_delay);
-
-static inline void dedicated_idle_sleep(unsigned int cpu)
-{
- struct paca_struct *ppaca = &paca[cpu ^ 1];
-
- /* Only sleep if the other thread is not idle */
- if (!(ppaca->lppaca.idle)) {
- local_irq_disable();
-
- /*
- * We are about to sleep the thread and so wont be polling any
- * more.
- */
- clear_thread_flag(TIF_POLLING_NRFLAG);
-
- /*
- * SMT dynamic mode. Cede will result in this thread going
- * dormant, if the partner thread is still doing work. Thread
- * wakes up if partner goes idle, an interrupt is presented, or
- * a prod occurs. Returning from the cede enables external
- * interrupts.
- */
- if (!need_resched())
- cede_processor();
- else
- local_irq_enable();
- } else {
- /*
- * Give the HV an opportunity at the processor, since we are
- * not doing any work.
- */
- poll_pending();
- }
-}
-
-static int pseries_dedicated_idle(void)
-{
- long oldval;
- struct paca_struct *lpaca = get_paca();
- unsigned int cpu = smp_processor_id();
- unsigned long start_snooze;
- unsigned long *smt_snooze_delay = &__get_cpu_var(smt_snooze_delay);
-
- while (1) {
- /*
- * Indicate to the HV that we are idle. Now would be
- * a good time to find other work to dispatch.
- */
- lpaca->lppaca.idle = 1;
-
- oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED);
- if (!oldval) {
- set_thread_flag(TIF_POLLING_NRFLAG);
-
- start_snooze = __get_tb() +
- *smt_snooze_delay * tb_ticks_per_usec;
-
- while (!need_resched() && !cpu_is_offline(cpu)) {
- ppc64_runlatch_off();
-
- /*
- * Go into low thread priority and possibly
- * low power mode.
- */
- HMT_low();
- HMT_very_low();
-
- if (*smt_snooze_delay != 0 &&
- __get_tb() > start_snooze) {
- HMT_medium();
- dedicated_idle_sleep(cpu);
- }
-
- }
-
- HMT_medium();
- clear_thread_flag(TIF_POLLING_NRFLAG);
- } else {
- set_need_resched();
- }
-
- lpaca->lppaca.idle = 0;
- ppc64_runlatch_on();
-
- schedule();
-
- if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
- cpu_die();
- }
-}
-
-static int pseries_shared_idle(void)
-{
- struct paca_struct *lpaca = get_paca();
- unsigned int cpu = smp_processor_id();
-
- while (1) {
- /*
- * Indicate to the HV that we are idle. Now would be
- * a good time to find other work to dispatch.
- */
- lpaca->lppaca.idle = 1;
-
- while (!need_resched() && !cpu_is_offline(cpu)) {
- local_irq_disable();
- ppc64_runlatch_off();
-
- /*
- * Yield the processor to the hypervisor. We return if
- * an external interrupt occurs (which are driven prior
- * to returning here) or if a prod occurs from another
- * processor. When returning here, external interrupts
- * are enabled.
- *
- * Check need_resched() again with interrupts disabled
- * to avoid a race.
- */
- if (!need_resched())
- cede_processor();
- else
- local_irq_enable();
-
- HMT_medium();
- }
-
- lpaca->lppaca.idle = 0;
- ppc64_runlatch_on();
-
- schedule();
-
- if (cpu_is_offline(cpu) && system_state == SYSTEM_RUNNING)
- cpu_die();
- }
-
- return 0;
-}
-
-static int pSeries_pci_probe_mode(struct pci_bus *bus)
-{
- if (systemcfg->platform & PLATFORM_LPAR)
- return PCI_PROBE_DEVTREE;
- return PCI_PROBE_NORMAL;
-}
-
-struct machdep_calls __initdata pSeries_md = {
- .probe = pSeries_probe,
- .setup_arch = pSeries_setup_arch,
- .init_early = pSeries_init_early,
- .get_cpuinfo = pSeries_get_cpuinfo,
- .log_error = pSeries_log_error,
- .pcibios_fixup = pSeries_final_fixup,
- .pci_probe_mode = pSeries_pci_probe_mode,
- .irq_bus_setup = pSeries_irq_bus_setup,
- .restart = rtas_restart,
- .power_off = rtas_power_off,
- .halt = rtas_halt,
- .panic = rtas_os_term,
- .cpu_die = pSeries_mach_cpu_die,
- .get_boot_time = rtas_get_boot_time,
- .get_rtc_time = rtas_get_rtc_time,
- .set_rtc_time = rtas_set_rtc_time,
- .calibrate_decr = generic_calibrate_decr,
- .progress = rtas_progress,
- .check_legacy_ioport = pSeries_check_legacy_ioport,
- .system_reset_exception = pSeries_system_reset_exception,
- .machine_check_exception = pSeries_machine_check_exception,
-};
diff --git a/arch/ppc64/kernel/pSeries_smp.c b/arch/ppc64/kernel/pSeries_smp.c
deleted file mode 100644
index 5d1ed850f47..00000000000
--- a/arch/ppc64/kernel/pSeries_smp.c
+++ /dev/null
@@ -1,517 +0,0 @@
-/*
- * SMP support for pSeries and BPA machines.
- *
- * Dave Engebretsen, Peter Bergner, and
- * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com
- *
- * Plus various changes from other IBM teams...
- *
- * 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.
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/cache.h>
-#include <linux/err.h>
-#include <linux/sysdev.h>
-#include <linux/cpu.h>
-
-#include <asm/ptrace.h>
-#include <asm/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/io.h>
-#include <asm/prom.h>
-#include <asm/smp.h>
-#include <asm/paca.h>
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/xics.h>
-#include <asm/cputable.h>
-#include <asm/firmware.h>
-#include <asm/system.h>
-#include <asm/rtas.h>
-#include <asm/plpar_wrappers.h>
-#include <asm/pSeries_reconfig.h>
-#include <asm/mpic.h>
-
-#include "bpa_iic.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/*
- * The primary thread of each non-boot processor is recorded here before
- * smp init.
- */
-static cpumask_t of_spin_map;
-
-extern void pSeries_secondary_smp_init(unsigned long);
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/* Get state of physical CPU.
- * Return codes:
- * 0 - The processor is in the RTAS stopped state
- * 1 - stop-self is in progress
- * 2 - The processor is not in the RTAS stopped state
- * -1 - Hardware Error
- * -2 - Hardware Busy, Try again later.
- */
-static int query_cpu_stopped(unsigned int pcpu)
-{
- int cpu_status;
- int status, qcss_tok;
-
- qcss_tok = rtas_token("query-cpu-stopped-state");
- if (qcss_tok == RTAS_UNKNOWN_SERVICE)
- return -1;
- status = rtas_call(qcss_tok, 1, 2, &cpu_status, pcpu);
- if (status != 0) {
- printk(KERN_ERR
- "RTAS query-cpu-stopped-state failed: %i\n", status);
- return status;
- }
-
- return cpu_status;
-}
-
-int pSeries_cpu_disable(void)
-{
- int cpu = smp_processor_id();
-
- cpu_clear(cpu, cpu_online_map);
- systemcfg->processorCount--;
-
- /*fix boot_cpuid here*/
- if (cpu == boot_cpuid)
- boot_cpuid = any_online_cpu(cpu_online_map);
-
- /* FIXME: abstract this to not be platform specific later on */
- xics_migrate_irqs_away();
- return 0;
-}
-
-void pSeries_cpu_die(unsigned int cpu)
-{
- int tries;
- int cpu_status;
- unsigned int pcpu = get_hard_smp_processor_id(cpu);
-
- for (tries = 0; tries < 25; tries++) {
- cpu_status = query_cpu_stopped(pcpu);
- if (cpu_status == 0 || cpu_status == -1)
- break;
- msleep(200);
- }
- if (cpu_status != 0) {
- printk("Querying DEAD? cpu %i (%i) shows %i\n",
- cpu, pcpu, cpu_status);
- }
-
- /* Isolation and deallocation are definatly done by
- * drslot_chrp_cpu. If they were not they would be
- * done here. Change isolate state to Isolate and
- * change allocation-state to Unusable.
- */
- paca[cpu].cpu_start = 0;
-}
-
-/*
- * Update cpu_present_map and paca(s) for a new cpu node. The wrinkle
- * here is that a cpu device node may represent up to two logical cpus
- * in the SMT case. We must honor the assumption in other code that
- * the logical ids for sibling SMT threads x and y are adjacent, such
- * that x^1 == y and y^1 == x.
- */
-static int pSeries_add_processor(struct device_node *np)
-{
- unsigned int cpu;
- cpumask_t candidate_map, tmp = CPU_MASK_NONE;
- int err = -ENOSPC, len, nthreads, i;
- u32 *intserv;
-
- intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
- if (!intserv)
- return 0;
-
- nthreads = len / sizeof(u32);
- for (i = 0; i < nthreads; i++)
- cpu_set(i, tmp);
-
- lock_cpu_hotplug();
-
- BUG_ON(!cpus_subset(cpu_present_map, cpu_possible_map));
-
- /* Get a bitmap of unoccupied slots. */
- cpus_xor(candidate_map, cpu_possible_map, cpu_present_map);
- if (cpus_empty(candidate_map)) {
- /* If we get here, it most likely means that NR_CPUS is
- * less than the partition's max processors setting.
- */
- printk(KERN_ERR "Cannot add cpu %s; this system configuration"
- " supports %d logical cpus.\n", np->full_name,
- cpus_weight(cpu_possible_map));
- goto out_unlock;
- }
-
- while (!cpus_empty(tmp))
- if (cpus_subset(tmp, candidate_map))
- /* Found a range where we can insert the new cpu(s) */
- break;
- else
- cpus_shift_left(tmp, tmp, nthreads);
-
- if (cpus_empty(tmp)) {
- printk(KERN_ERR "Unable to find space in cpu_present_map for"
- " processor %s with %d thread(s)\n", np->name,
- nthreads);
- goto out_unlock;
- }
-
- for_each_cpu_mask(cpu, tmp) {
- BUG_ON(cpu_isset(cpu, cpu_present_map));
- cpu_set(cpu, cpu_present_map);
- set_hard_smp_processor_id(cpu, *intserv++);
- }
- err = 0;
-out_unlock:
- unlock_cpu_hotplug();
- return err;
-}
-
-/*
- * Update the present map for a cpu node which is going away, and set
- * the hard id in the paca(s) to -1 to be consistent with boot time
- * convention for non-present cpus.
- */
-static void pSeries_remove_processor(struct device_node *np)
-{
- unsigned int cpu;
- int len, nthreads, i;
- u32 *intserv;
-
- intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
- if (!intserv)
- return;
-
- nthreads = len / sizeof(u32);
-
- lock_cpu_hotplug();
- for (i = 0; i < nthreads; i++) {
- for_each_present_cpu(cpu) {
- if (get_hard_smp_processor_id(cpu) != intserv[i])
- continue;
- BUG_ON(cpu_online(cpu));
- cpu_clear(cpu, cpu_present_map);
- set_hard_smp_processor_id(cpu, -1);
- break;
- }
- if (cpu == NR_CPUS)
- printk(KERN_WARNING "Could not find cpu to remove "
- "with physical id 0x%x\n", intserv[i]);
- }
- unlock_cpu_hotplug();
-}
-
-static int pSeries_smp_notifier(struct notifier_block *nb, unsigned long action, void *node)
-{
- int err = NOTIFY_OK;
-
- switch (action) {
- case PSERIES_RECONFIG_ADD:
- if (pSeries_add_processor(node))
- err = NOTIFY_BAD;
- break;
- case PSERIES_RECONFIG_REMOVE:
- pSeries_remove_processor(node);
- break;
- default:
- err = NOTIFY_DONE;
- break;
- }
- return err;
-}
-
-static struct notifier_block pSeries_smp_nb = {
- .notifier_call = pSeries_smp_notifier,
-};
-
-#endif /* CONFIG_HOTPLUG_CPU */
-
-/**
- * smp_startup_cpu() - start the given cpu
- *
- * At boot time, there is nothing to do for primary threads which were
- * started from Open Firmware. For anything else, call RTAS with the
- * appropriate start location.
- *
- * Returns:
- * 0 - failure
- * 1 - success
- */
-static inline int __devinit smp_startup_cpu(unsigned int lcpu)
-{
- int status;
- unsigned long start_here = __pa((u32)*((unsigned long *)
- pSeries_secondary_smp_init));
- unsigned int pcpu;
- int start_cpu;
-
- if (cpu_isset(lcpu, of_spin_map))
- /* Already started by OF and sitting in spin loop */
- return 1;
-
- pcpu = get_hard_smp_processor_id(lcpu);
-
- /* Fixup atomic count: it exited inside IRQ handler. */
- paca[lcpu].__current->thread_info->preempt_count = 0;
-
- /*
- * If the RTAS start-cpu token does not exist then presume the
- * cpu is already spinning.
- */
- start_cpu = rtas_token("start-cpu");
- if (start_cpu == RTAS_UNKNOWN_SERVICE)
- return 1;
-
- status = rtas_call(start_cpu, 3, 1, NULL, pcpu, start_here, lcpu);
- if (status != 0) {
- printk(KERN_ERR "start-cpu failed: %i\n", status);
- return 0;
- }
-
- return 1;
-}
-
-#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)
- xics_setup_cpu();
-
- if (firmware_has_feature(FW_FEATURE_SPLPAR))
- vpa_init(cpu);
-
- cpu_clear(cpu, of_spin_map);
-
-}
-#endif /* CONFIG_XICS */
-#ifdef CONFIG_BPA_IIC
-static void smp_iic_message_pass(int target, int msg)
-{
- unsigned int i;
-
- if (target < NR_CPUS) {
- iic_cause_IPI(target, msg);
- } else {
- for_each_online_cpu(i) {
- if (target == MSG_ALL_BUT_SELF
- && i == smp_processor_id())
- continue;
- iic_cause_IPI(i, msg);
- }
- }
-}
-
-static int __init smp_iic_probe(void)
-{
- iic_request_IPIs();
-
- return cpus_weight(cpu_possible_map);
-}
-
-static void __devinit smp_iic_setup_cpu(int cpu)
-{
- if (cpu != boot_cpuid)
- iic_setup_cpu();
-}
-#endif /* CONFIG_BPA_IIC */
-
-static DEFINE_SPINLOCK(timebase_lock);
-static unsigned long timebase = 0;
-
-static void __devinit pSeries_give_timebase(void)
-{
- spin_lock(&timebase_lock);
- rtas_call(rtas_token("freeze-time-base"), 0, 1, NULL);
- timebase = get_tb();
- spin_unlock(&timebase_lock);
-
- while (timebase)
- barrier();
- rtas_call(rtas_token("thaw-time-base"), 0, 1, NULL);
-}
-
-static void __devinit pSeries_take_timebase(void)
-{
- while (!timebase)
- barrier();
- spin_lock(&timebase_lock);
- set_tb(timebase >> 32, timebase & 0xffffffff);
- timebase = 0;
- spin_unlock(&timebase_lock);
-}
-
-static void __devinit smp_pSeries_kick_cpu(int nr)
-{
- BUG_ON(nr < 0 || nr >= NR_CPUS);
-
- if (!smp_startup_cpu(nr))
- return;
-
- /*
- * The processor is currently spinning, waiting for the
- * cpu_start field to become non-zero After we set cpu_start,
- * the processor will continue on to secondary_start
- */
- paca[nr].cpu_start = 1;
-}
-
-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.
- */
- if (system_state < SYSTEM_RUNNING &&
- cpu_has_feature(CPU_FTR_SMT) &&
- !smt_enabled_at_boot && nr % 2 != 0)
- return 0;
-
- return 1;
-}
-#ifdef CONFIG_MPIC
-static struct smp_ops_t pSeries_mpic_smp_ops = {
- .message_pass = smp_mpic_message_pass,
- .probe = smp_mpic_probe,
- .kick_cpu = smp_pSeries_kick_cpu,
- .setup_cpu = smp_mpic_setup_cpu,
-};
-#endif
-#ifdef CONFIG_XICS
-static struct smp_ops_t pSeries_xics_smp_ops = {
- .message_pass = smp_xics_message_pass,
- .probe = smp_xics_probe,
- .kick_cpu = smp_pSeries_kick_cpu,
- .setup_cpu = smp_xics_setup_cpu,
- .cpu_bootable = smp_pSeries_cpu_bootable,
-};
-#endif
-#ifdef CONFIG_BPA_IIC
-static struct smp_ops_t bpa_iic_smp_ops = {
- .message_pass = smp_iic_message_pass,
- .probe = smp_iic_probe,
- .kick_cpu = smp_pSeries_kick_cpu,
- .setup_cpu = smp_iic_setup_cpu,
- .cpu_bootable = smp_pSeries_cpu_bootable,
-};
-#endif
-
-/* This is called very early */
-void __init smp_init_pSeries(void)
-{
- int i;
-
- DBG(" -> smp_init_pSeries()\n");
-
- switch (ppc64_interrupt_controller) {
-#ifdef CONFIG_MPIC
- case IC_OPEN_PIC:
- smp_ops = &pSeries_mpic_smp_ops;
- break;
-#endif
-#ifdef CONFIG_XICS
- case IC_PPC_XIC:
- smp_ops = &pSeries_xics_smp_ops;
- break;
-#endif
-#ifdef CONFIG_BPA_IIC
- case IC_BPA_IIC:
- smp_ops = &bpa_iic_smp_ops;
- break;
-#endif
- default:
- panic("Invalid interrupt controller");
- }
-
-#ifdef CONFIG_HOTPLUG_CPU
- smp_ops->cpu_disable = pSeries_cpu_disable;
- smp_ops->cpu_die = pSeries_cpu_die;
-
- /* Processors can be added/removed only on LPAR */
- if (systemcfg->platform == PLATFORM_PSERIES_LPAR)
- pSeries_reconfig_notifier_register(&pSeries_smp_nb);
-#endif
-
- /* 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.
- */
- cpu_set(i, of_spin_map);
- }
- } else {
- of_spin_map = cpu_present_map;
- }
-
- cpu_clear(boot_cpuid, of_spin_map);
-
- /* Non-lpar has additional take/give timebase */
- if (rtas_token("freeze-time-base") != RTAS_UNKNOWN_SERVICE) {
- smp_ops->give_timebase = pSeries_give_timebase;
- smp_ops->take_timebase = pSeries_take_timebase;
- }
-
- DBG(" <- smp_init_pSeries()\n");
-}
-
diff --git a/arch/ppc64/kernel/pSeries_vio.c b/arch/ppc64/kernel/pSeries_vio.c
deleted file mode 100644
index 866379b80c0..00000000000
--- a/arch/ppc64/kernel/pSeries_vio.c
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * IBM PowerPC pSeries Virtual I/O Infrastructure Support.
- *
- * Copyright (c) 2003-2005 IBM Corp.
- * Dave Engebretsen engebret@us.ibm.com
- * Santiago Leon santil@us.ibm.com
- * Hollis Blanchard <hollisb@us.ibm.com>
- * Stephen Rothwell
- *
- * 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/module.h>
-#include <linux/mm.h>
-#include <linux/kobject.h>
-#include <asm/iommu.h>
-#include <asm/dma.h>
-#include <asm/prom.h>
-#include <asm/vio.h>
-#include <asm/hvcall.h>
-#include <asm/tce.h>
-
-extern struct subsystem devices_subsys; /* needed for vio_find_name() */
-
-static void probe_bus_pseries(void)
-{
- struct device_node *node_vroot, *of_node;
-
- node_vroot = find_devices("vdevice");
- if ((node_vroot == NULL) || (node_vroot->child == NULL))
- /* this machine doesn't do virtual IO, and that's ok */
- return;
-
- /*
- * Create struct vio_devices for each virtual device in the device tree.
- * Drivers will associate with them later.
- */
- for (of_node = node_vroot->child; of_node != NULL;
- of_node = of_node->sibling) {
- printk(KERN_DEBUG "%s: processing %p\n", __FUNCTION__, of_node);
- vio_register_device_node(of_node);
- }
-}
-
-/**
- * vio_match_device_pseries: - Tell if a pSeries VIO device matches a
- * vio_device_id
- */
-static int vio_match_device_pseries(const struct vio_device_id *id,
- const struct vio_dev *dev)
-{
- return (strncmp(dev->type, id->type, strlen(id->type)) == 0) &&
- device_is_compatible(dev->dev.platform_data, id->compat);
-}
-
-static void vio_release_device_pseries(struct device *dev)
-{
- /* XXX free TCE table */
- of_node_put(dev->platform_data);
-}
-
-static ssize_t viodev_show_devspec(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct device_node *of_node = dev->platform_data;
-
- return sprintf(buf, "%s\n", of_node->full_name);
-}
-DEVICE_ATTR(devspec, S_IRUSR | S_IRGRP | S_IROTH, viodev_show_devspec, NULL);
-
-static void vio_unregister_device_pseries(struct vio_dev *viodev)
-{
- device_remove_file(&viodev->dev, &dev_attr_devspec);
-}
-
-static struct vio_bus_ops vio_bus_ops_pseries = {
- .match = vio_match_device_pseries,
- .unregister_device = vio_unregister_device_pseries,
- .release_device = vio_release_device_pseries,
-};
-
-/**
- * vio_bus_init_pseries: - Initialize the pSeries virtual IO bus
- */
-static int __init vio_bus_init_pseries(void)
-{
- int err;
-
- err = vio_bus_init(&vio_bus_ops_pseries);
- if (err == 0)
- probe_bus_pseries();
- return err;
-}
-
-__initcall(vio_bus_init_pseries);
-
-/**
- * vio_build_iommu_table: - gets the dma information from OF and
- * builds the TCE tree.
- * @dev: the virtual device.
- *
- * Returns a pointer to the built tce tree, or NULL if it can't
- * find property.
-*/
-static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
-{
- unsigned int *dma_window;
- struct iommu_table *newTceTable;
- unsigned long offset;
- int dma_window_property_size;
-
- dma_window = (unsigned int *) get_property(dev->dev.platform_data, "ibm,my-dma-window", &dma_window_property_size);
- if(!dma_window) {
- return NULL;
- }
-
- newTceTable = (struct iommu_table *) kmalloc(sizeof(struct iommu_table), GFP_KERNEL);
-
- /* There should be some code to extract the phys-encoded offset
- using prom_n_addr_cells(). However, according to a comment
- on earlier versions, it's always zero, so we don't bother */
- offset = dma_window[1] >> PAGE_SHIFT;
-
- /* TCE table size - measured in tce entries */
- newTceTable->it_size = dma_window[4] >> PAGE_SHIFT;
- /* offset for VIO should always be 0 */
- newTceTable->it_offset = offset;
- newTceTable->it_busno = 0;
- newTceTable->it_index = (unsigned long)dma_window[0];
- newTceTable->it_type = TCE_VB;
-
- return iommu_init_table(newTceTable);
-}
-
-/**
- * vio_register_device_node: - Register a new vio device.
- * @of_node: The OF node for this device.
- *
- * Creates and initializes a vio_dev structure from the data in
- * of_node (dev.platform_data) and adds it to the list of virtual devices.
- * Returns a pointer to the created vio_dev or NULL if node has
- * NULL device_type or compatible fields.
- */
-struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
-{
- struct vio_dev *viodev;
- unsigned int *unit_address;
- unsigned int *irq_p;
-
- /* we need the 'device_type' property, in order to match with drivers */
- if ((NULL == of_node->type)) {
- printk(KERN_WARNING
- "%s: node %s missing 'device_type'\n", __FUNCTION__,
- of_node->name ? of_node->name : "<unknown>");
- return NULL;
- }
-
- unit_address = (unsigned int *)get_property(of_node, "reg", NULL);
- if (!unit_address) {
- printk(KERN_WARNING "%s: node %s missing 'reg'\n", __FUNCTION__,
- of_node->name ? of_node->name : "<unknown>");
- return NULL;
- }
-
- /* allocate a vio_dev for this node */
- viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL);
- if (!viodev) {
- return NULL;
- }
- memset(viodev, 0, sizeof(struct vio_dev));
-
- viodev->dev.platform_data = of_node_get(of_node);
-
- viodev->irq = NO_IRQ;
- irq_p = (unsigned int *)get_property(of_node, "interrupts", NULL);
- if (irq_p) {
- int virq = virt_irq_create_mapping(*irq_p);
- if (virq == NO_IRQ) {
- printk(KERN_ERR "Unable to allocate interrupt "
- "number for %s\n", of_node->full_name);
- } else
- viodev->irq = irq_offset_up(virq);
- }
-
- snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%x", *unit_address);
- viodev->name = of_node->name;
- viodev->type = of_node->type;
- viodev->unit_address = *unit_address;
- viodev->iommu_table = vio_build_iommu_table(viodev);
-
- /* register with generic device framework */
- if (vio_register_device(viodev) == NULL) {
- /* XXX free TCE table */
- kfree(viodev);
- return NULL;
- }
- device_create_file(&viodev->dev, &dev_attr_devspec);
-
- return viodev;
-}
-EXPORT_SYMBOL(vio_register_device_node);
-
-/**
- * vio_get_attribute: - get attribute for virtual device
- * @vdev: The vio device to get property.
- * @which: The property/attribute to be extracted.
- * @length: Pointer to length of returned data size (unused if NULL).
- *
- * Calls prom.c's get_property() to return the value of the
- * attribute specified by the preprocessor constant @which
-*/
-const void * vio_get_attribute(struct vio_dev *vdev, void* which, int* length)
-{
- return get_property(vdev->dev.platform_data, (char*)which, length);
-}
-EXPORT_SYMBOL(vio_get_attribute);
-
-/* vio_find_name() - internal because only vio.c knows how we formatted the
- * kobject name
- * XXX once vio_bus_type.devices is actually used as a kset in
- * drivers/base/bus.c, this function should be removed in favor of
- * "device_find(kobj_name, &vio_bus_type)"
- */
-static struct vio_dev *vio_find_name(const char *kobj_name)
-{
- struct kobject *found;
-
- found = kset_find_obj(&devices_subsys.kset, kobj_name);
- if (!found)
- return NULL;
-
- return to_vio_dev(container_of(found, struct device, kobj));
-}
-
-/**
- * vio_find_node - find an already-registered vio_dev
- * @vnode: device_node of the virtual device we're looking for
- */
-struct vio_dev *vio_find_node(struct device_node *vnode)
-{
- uint32_t *unit_address;
- char kobj_name[BUS_ID_SIZE];
-
- /* construct the kobject name from the device node */
- unit_address = (uint32_t *)get_property(vnode, "reg", NULL);
- if (!unit_address)
- return NULL;
- snprintf(kobj_name, BUS_ID_SIZE, "%x", *unit_address);
-
- return vio_find_name(kobj_name);
-}
-EXPORT_SYMBOL(vio_find_node);
-
-int vio_enable_interrupts(struct vio_dev *dev)
-{
- int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
- if (rc != H_Success)
- printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
- return rc;
-}
-EXPORT_SYMBOL(vio_enable_interrupts);
-
-int vio_disable_interrupts(struct vio_dev *dev)
-{
- int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
- if (rc != H_Success)
- printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
- return rc;
-}
-EXPORT_SYMBOL(vio_disable_interrupts);