diff options
Diffstat (limited to 'arch/ppc64/kernel')
39 files changed, 16 insertions, 6275 deletions
diff --git a/arch/ppc64/kernel/HvCall.c b/arch/ppc64/kernel/HvCall.c deleted file mode 100644 index b772e65b57a..00000000000 --- a/arch/ppc64/kernel/HvCall.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * HvCall.c - * Copyright (C) 2001 Mike Corrigan 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 <asm/page.h> -#include <asm/abs_addr.h> -#include <asm/iSeries/HvCall.h> -#include <asm/iSeries/HvCallSc.h> -#include <asm/iSeries/HvTypes.h> - - -void HvCall_writeLogBuffer(const void *buffer, u64 len) -{ - struct HvLpBufferList hv_buf; - u64 left_this_page; - u64 cur = virt_to_abs(buffer); - - while (len) { - hv_buf.addr = cur; - left_this_page = ((cur & PAGE_MASK) + PAGE_SIZE) - cur; - if (left_this_page > len) - left_this_page = len; - hv_buf.len = left_this_page; - len -= left_this_page; - HvCall2(HvCallBaseWriteLogBuffer, - virt_to_abs(&hv_buf), - left_this_page); - cur = (cur & PAGE_MASK) + PAGE_SIZE; - } -} diff --git a/arch/ppc64/kernel/HvLpConfig.c b/arch/ppc64/kernel/HvLpConfig.c deleted file mode 100644 index cb1d6473203..00000000000 --- a/arch/ppc64/kernel/HvLpConfig.c +++ /dev/null @@ -1,27 +0,0 @@ -/* - * HvLpConfig.c - * Copyright (C) 2001 Kyle A. Lucke, 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. - * - * 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/module.h> -#include <asm/iSeries/HvLpConfig.h> - -HvLpIndex HvLpConfig_getLpIndex_outline(void) -{ - return HvLpConfig_getLpIndex(); -} -EXPORT_SYMBOL(HvLpConfig_getLpIndex_outline); diff --git a/arch/ppc64/kernel/HvLpEvent.c b/arch/ppc64/kernel/HvLpEvent.c deleted file mode 100644 index 90032b13890..00000000000 --- a/arch/ppc64/kernel/HvLpEvent.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright 2001 Mike Corrigan 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/stddef.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <asm/system.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/HvCallEvent.h> -#include <asm/iSeries/ItLpNaca.h> - -/* Array of LpEvent handler functions */ -LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes]; -unsigned lpEventHandlerPaths[HvLpEvent_Type_NumTypes]; - -/* Register a handler for an LpEvent type */ - -int HvLpEvent_registerHandler( HvLpEvent_Type eventType, LpEventHandler handler ) -{ - int rc = 1; - if ( eventType < HvLpEvent_Type_NumTypes ) { - lpEventHandler[eventType] = handler; - rc = 0; - } - return rc; - -} - -int HvLpEvent_unregisterHandler( HvLpEvent_Type eventType ) -{ - int rc = 1; - - might_sleep(); - - if ( eventType < HvLpEvent_Type_NumTypes ) { - if ( !lpEventHandlerPaths[eventType] ) { - lpEventHandler[eventType] = NULL; - rc = 0; - - /* We now sleep until all other CPUs have scheduled. This ensures that - * the deletion is seen by all other CPUs, and that the deleted handler - * isn't still running on another CPU when we return. */ - synchronize_rcu(); - } - } - return rc; -} -EXPORT_SYMBOL(HvLpEvent_registerHandler); -EXPORT_SYMBOL(HvLpEvent_unregisterHandler); - -/* (lpIndex is the partition index of the target partition. - * needed only for VirtualIo, VirtualLan and SessionMgr. Zero - * indicates to use our partition index - for the other types) - */ -int HvLpEvent_openPath( HvLpEvent_Type eventType, HvLpIndex lpIndex ) -{ - int rc = 1; - if ( eventType < HvLpEvent_Type_NumTypes && - lpEventHandler[eventType] ) { - if ( lpIndex == 0 ) - lpIndex = itLpNaca.xLpIndex; - HvCallEvent_openLpEventPath( lpIndex, eventType ); - ++lpEventHandlerPaths[eventType]; - rc = 0; - } - return rc; -} - -int HvLpEvent_closePath( HvLpEvent_Type eventType, HvLpIndex lpIndex ) -{ - int rc = 1; - if ( eventType < HvLpEvent_Type_NumTypes && - lpEventHandler[eventType] && - lpEventHandlerPaths[eventType] ) { - if ( lpIndex == 0 ) - lpIndex = itLpNaca.xLpIndex; - HvCallEvent_closeLpEventPath( lpIndex, eventType ); - --lpEventHandlerPaths[eventType]; - rc = 0; - } - return rc; -} - diff --git a/arch/ppc64/kernel/ItLpQueue.c b/arch/ppc64/kernel/ItLpQueue.c deleted file mode 100644 index 4231861288a..00000000000 --- a/arch/ppc64/kernel/ItLpQueue.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - * ItLpQueue.c - * Copyright (C) 2001 Mike Corrigan 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/stddef.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/proc_fs.h> -#include <asm/system.h> -#include <asm/paca.h> -#include <asm/iSeries/ItLpQueue.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/HvCallEvent.h> - -/* - * The LpQueue is used to pass event data from the hypervisor to - * the partition. This is where I/O interrupt events are communicated. - * - * It is written to by the hypervisor so cannot end up in the BSS. - */ -struct hvlpevent_queue hvlpevent_queue __attribute__((__section__(".data"))); - -DEFINE_PER_CPU(unsigned long[HvLpEvent_Type_NumTypes], hvlpevent_counts); - -static char *event_types[HvLpEvent_Type_NumTypes] = { - "Hypervisor", - "Machine Facilities", - "Session Manager", - "SPD I/O", - "Virtual Bus", - "PCI I/O", - "RIO I/O", - "Virtual Lan", - "Virtual I/O" -}; - -/* Array of LpEvent handler functions */ -extern LpEventHandler lpEventHandler[HvLpEvent_Type_NumTypes]; - -static struct HvLpEvent * get_next_hvlpevent(void) -{ - struct HvLpEvent * event; - event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr; - - if (event->xFlags.xValid) { - /* rmb() needed only for weakly consistent machines (regatta) */ - rmb(); - /* Set pointer to next potential event */ - hvlpevent_queue.xSlicCurEventPtr += ((event->xSizeMinus1 + - LpEventAlign) / LpEventAlign) * LpEventAlign; - - /* Wrap to beginning if no room at end */ - if (hvlpevent_queue.xSlicCurEventPtr > - hvlpevent_queue.xSlicLastValidEventPtr) { - hvlpevent_queue.xSlicCurEventPtr = - hvlpevent_queue.xSlicEventStackPtr; - } - } else { - event = NULL; - } - - return event; -} - -static unsigned long spread_lpevents = NR_CPUS; - -int hvlpevent_is_pending(void) -{ - struct HvLpEvent *next_event; - - if (smp_processor_id() >= spread_lpevents) - return 0; - - next_event = (struct HvLpEvent *)hvlpevent_queue.xSlicCurEventPtr; - - return next_event->xFlags.xValid | - hvlpevent_queue.xPlicOverflowIntPending; -} - -static void hvlpevent_clear_valid(struct HvLpEvent * event) -{ - /* Tell the Hypervisor that we're done with this event. - * Also clear bits within this event that might look like valid bits. - * ie. on 64-byte boundaries. - */ - struct HvLpEvent *tmp; - unsigned extra = ((event->xSizeMinus1 + LpEventAlign) / - LpEventAlign) - 1; - - switch (extra) { - case 3: - tmp = (struct HvLpEvent*)((char*)event + 3 * LpEventAlign); - tmp->xFlags.xValid = 0; - case 2: - tmp = (struct HvLpEvent*)((char*)event + 2 * LpEventAlign); - tmp->xFlags.xValid = 0; - case 1: - tmp = (struct HvLpEvent*)((char*)event + 1 * LpEventAlign); - tmp->xFlags.xValid = 0; - } - - mb(); - - event->xFlags.xValid = 0; -} - -void process_hvlpevents(struct pt_regs *regs) -{ - struct HvLpEvent * event; - - /* If we have recursed, just return */ - if (!spin_trylock(&hvlpevent_queue.lock)) - return; - - for (;;) { - event = get_next_hvlpevent(); - if (event) { - /* Call appropriate handler here, passing - * a pointer to the LpEvent. The handler - * must make a copy of the LpEvent if it - * needs it in a bottom half. (perhaps for - * an ACK) - * - * Handlers are responsible for ACK processing - * - * The Hypervisor guarantees that LpEvents will - * only be delivered with types that we have - * registered for, so no type check is necessary - * here! - */ - if (event->xType < HvLpEvent_Type_NumTypes) - __get_cpu_var(hvlpevent_counts)[event->xType]++; - if (event->xType < HvLpEvent_Type_NumTypes && - lpEventHandler[event->xType]) - lpEventHandler[event->xType](event, regs); - else - printk(KERN_INFO "Unexpected Lp Event type=%d\n", event->xType ); - - hvlpevent_clear_valid(event); - } else if (hvlpevent_queue.xPlicOverflowIntPending) - /* - * No more valid events. If overflow events are - * pending process them - */ - HvCallEvent_getOverflowLpEvents(hvlpevent_queue.xIndex); - else - break; - } - - spin_unlock(&hvlpevent_queue.lock); -} - -static int set_spread_lpevents(char *str) -{ - unsigned long val = simple_strtoul(str, NULL, 0); - - /* - * The parameter is the number of processors to share in processing - * lp events. - */ - if (( val > 0) && (val <= NR_CPUS)) { - spread_lpevents = val; - printk("lpevent processing spread over %ld processors\n", val); - } else { - printk("invalid spread_lpevents %ld\n", val); - } - - return 1; -} -__setup("spread_lpevents=", set_spread_lpevents); - -void setup_hvlpevent_queue(void) -{ - void *eventStack; - - /* - * Allocate a page for the Event Stack. The Hypervisor needs the - * absolute real address, so we subtract out the KERNELBASE and add - * in the absolute real address of the kernel load area. - */ - eventStack = alloc_bootmem_pages(LpEventStackSize); - memset(eventStack, 0, LpEventStackSize); - - /* Invoke the hypervisor to initialize the event stack */ - HvCallEvent_setLpEventStack(0, eventStack, LpEventStackSize); - - hvlpevent_queue.xSlicEventStackPtr = (char *)eventStack; - hvlpevent_queue.xSlicCurEventPtr = (char *)eventStack; - hvlpevent_queue.xSlicLastValidEventPtr = (char *)eventStack + - (LpEventStackSize - LpEventMaxSize); - hvlpevent_queue.xIndex = 0; -} - -static int proc_lpevents_show(struct seq_file *m, void *v) -{ - int cpu, i; - unsigned long sum; - static unsigned long cpu_totals[NR_CPUS]; - - /* FIXME: do we care that there's no locking here? */ - sum = 0; - for_each_online_cpu(cpu) { - cpu_totals[cpu] = 0; - for (i = 0; i < HvLpEvent_Type_NumTypes; i++) { - cpu_totals[cpu] += per_cpu(hvlpevent_counts, cpu)[i]; - } - sum += cpu_totals[cpu]; - } - - seq_printf(m, "LpEventQueue 0\n"); - seq_printf(m, " events processed:\t%lu\n", sum); - - for (i = 0; i < HvLpEvent_Type_NumTypes; ++i) { - sum = 0; - for_each_online_cpu(cpu) { - sum += per_cpu(hvlpevent_counts, cpu)[i]; - } - - seq_printf(m, " %-20s %10lu\n", event_types[i], sum); - } - - seq_printf(m, "\n events processed by processor:\n"); - - for_each_online_cpu(cpu) { - seq_printf(m, " CPU%02d %10lu\n", cpu, cpu_totals[cpu]); - } - - return 0; -} - -static int proc_lpevents_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_lpevents_show, NULL); -} - -static struct file_operations proc_lpevents_operations = { - .open = proc_lpevents_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init proc_lpevents_init(void) -{ - struct proc_dir_entry *e; - - e = create_proc_entry("iSeries/lpevents", S_IFREG|S_IRUGO, NULL); - if (e) - e->proc_fops = &proc_lpevents_operations; - - return 0; -} -__initcall(proc_lpevents_init); - diff --git a/arch/ppc64/kernel/LparData.c b/arch/ppc64/kernel/LparData.c deleted file mode 100644 index 0a9c23ca2f0..00000000000 --- a/arch/ppc64/kernel/LparData.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Copyright 2001 Mike Corrigan, 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/config.h> -#include <linux/types.h> -#include <linux/threads.h> -#include <linux/module.h> -#include <linux/bitops.h> -#include <asm/processor.h> -#include <asm/ptrace.h> -#include <asm/naca.h> -#include <asm/abs_addr.h> -#include <asm/iSeries/ItLpNaca.h> -#include <asm/lppaca.h> -#include <asm/iSeries/ItLpRegSave.h> -#include <asm/paca.h> -#include <asm/iSeries/HvReleaseData.h> -#include <asm/iSeries/LparMap.h> -#include <asm/iSeries/ItVpdAreas.h> -#include <asm/iSeries/ItIplParmsReal.h> -#include <asm/iSeries/ItExtVpdPanel.h> -#include <asm/iSeries/ItLpQueue.h> -#include <asm/iSeries/IoHriProcessorVpd.h> -#include <asm/iSeries/ItSpCommArea.h> - - -/* The HvReleaseData is the root of the information shared between - * the hypervisor and Linux. - */ -struct HvReleaseData hvReleaseData = { - .xDesc = 0xc8a5d9c4, /* "HvRD" ebcdic */ - .xSize = sizeof(struct HvReleaseData), - .xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas), - .xSlicNacaAddr = &naca, /* 64-bit Naca address */ - .xMsNucDataOffset = LPARMAP_PHYS, - .xFlags = HVREL_TAGSINACTIVE /* tags inactive */ - /* 64 bit */ - /* shared processors */ - /* HMT allowed */ - | 6, /* TEMP: This allows non-GA driver */ - .xVrmIndex = 4, /* We are v5r2m0 */ - .xMinSupportedPlicVrmIndex = 3, /* v5r1m0 */ - .xMinCompatablePlicVrmIndex = 3, /* v5r1m0 */ - .xVrmName = { 0xd3, 0x89, 0x95, 0xa4, /* "Linux 2.4.64" ebcdic */ - 0xa7, 0x40, 0xf2, 0x4b, - 0xf4, 0x4b, 0xf6, 0xf4 }, -}; - -/* - * The NACA. The first dword of the naca is required by the iSeries - * hypervisor to point to itVpdAreas. The hypervisor finds the NACA - * through the pointer in hvReleaseData. - */ -struct naca_struct naca = { - .xItVpdAreas = &itVpdAreas, - .xRamDisk = 0, - .xRamDiskSize = 0, -}; - -extern void system_reset_iSeries(void); -extern void machine_check_iSeries(void); -extern void data_access_iSeries(void); -extern void instruction_access_iSeries(void); -extern void hardware_interrupt_iSeries(void); -extern void alignment_iSeries(void); -extern void program_check_iSeries(void); -extern void fp_unavailable_iSeries(void); -extern void decrementer_iSeries(void); -extern void trap_0a_iSeries(void); -extern void trap_0b_iSeries(void); -extern void system_call_iSeries(void); -extern void single_step_iSeries(void); -extern void trap_0e_iSeries(void); -extern void performance_monitor_iSeries(void); -extern void data_access_slb_iSeries(void); -extern void instruction_access_slb_iSeries(void); - -struct ItLpNaca itLpNaca = { - .xDesc = 0xd397d581, /* "LpNa" ebcdic */ - .xSize = 0x0400, /* size of ItLpNaca */ - .xIntHdlrOffset = 0x0300, /* offset to int array */ - .xMaxIntHdlrEntries = 19, /* # ents */ - .xPrimaryLpIndex = 0, /* Part # of primary */ - .xServiceLpIndex = 0, /* Part # of serv */ - .xLpIndex = 0, /* Part # of me */ - .xMaxLpQueues = 0, /* # of LP queues */ - .xLpQueueOffset = 0x100, /* offset of start of LP queues */ - .xPirEnvironMode = 0, /* Piranha stuff */ - .xPirConsoleMode = 0, - .xPirDasdMode = 0, - .xLparInstalled = 0, - .xSysPartitioned = 0, - .xHwSyncedTBs = 0, - .xIntProcUtilHmt = 0, - .xSpVpdFormat = 0, - .xIntProcRatio = 0, - .xPlicVrmIndex = 0, /* VRM index of PLIC */ - .xMinSupportedSlicVrmInd = 0, /* min supported SLIC */ - .xMinCompatableSlicVrmInd = 0, /* min compat SLIC */ - .xLoadAreaAddr = 0, /* 64-bit addr of load area */ - .xLoadAreaChunks = 0, /* chunks for load area */ - .xPaseSysCallCRMask = 0, /* PASE mask */ - .xSlicSegmentTablePtr = 0, /* seg table */ - .xOldLpQueue = { 0 }, /* Old LP Queue */ - .xInterruptHdlr = { - (u64)system_reset_iSeries, /* 0x100 System Reset */ - (u64)machine_check_iSeries, /* 0x200 Machine Check */ - (u64)data_access_iSeries, /* 0x300 Data Access */ - (u64)instruction_access_iSeries, /* 0x400 Instruction Access */ - (u64)hardware_interrupt_iSeries, /* 0x500 External */ - (u64)alignment_iSeries, /* 0x600 Alignment */ - (u64)program_check_iSeries, /* 0x700 Program Check */ - (u64)fp_unavailable_iSeries, /* 0x800 FP Unavailable */ - (u64)decrementer_iSeries, /* 0x900 Decrementer */ - (u64)trap_0a_iSeries, /* 0xa00 Trap 0A */ - (u64)trap_0b_iSeries, /* 0xb00 Trap 0B */ - (u64)system_call_iSeries, /* 0xc00 System Call */ - (u64)single_step_iSeries, /* 0xd00 Single Step */ - (u64)trap_0e_iSeries, /* 0xe00 Trap 0E */ - (u64)performance_monitor_iSeries,/* 0xf00 Performance Monitor */ - 0, /* int 0x1000 */ - 0, /* int 0x1010 */ - 0, /* int 0x1020 CPU ctls */ - (u64)hardware_interrupt_iSeries, /* SC Ret Hdlr */ - (u64)data_access_slb_iSeries, /* 0x380 D-SLB */ - (u64)instruction_access_slb_iSeries /* 0x480 I-SLB */ - } -}; -EXPORT_SYMBOL(itLpNaca); - -/* May be filled in by the hypervisor so cannot end up in the BSS */ -struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data"))); - -/* May be filled in by the hypervisor so cannot end up in the BSS */ -struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data"))); -EXPORT_SYMBOL(xItExtVpdPanel); - -#define maxPhysicalProcessors 32 - -struct IoHriProcessorVpd xIoHriProcessorVpd[maxPhysicalProcessors] = { - { - .xInstCacheOperandSize = 32, - .xDataCacheOperandSize = 32, - .xProcFreq = 50000000, - .xTimeBaseFreq = 50000000, - .xPVR = 0x3600 - } -}; - -/* Space for Main Store Vpd 27,200 bytes */ -/* May be filled in by the hypervisor so cannot end up in the BSS */ -u64 xMsVpd[3400] __attribute__((__section__(".data"))); - -/* Space for Recovery Log Buffer */ -/* May be filled in by the hypervisor so cannot end up in the BSS */ -u64 xRecoveryLogBuffer[32] __attribute__((__section__(".data"))); - -struct SpCommArea xSpCommArea = { - .xDesc = 0xE2D7C3C2, - .xFormat = 1, -}; - -/* The LparMap data is now located at offset 0x6000 in head.S - * It was put there so that the HvReleaseData could address it - * with a 32-bit offset as required by the iSeries hypervisor - * - * The Naca has a pointer to the ItVpdAreas. The hypervisor finds - * the Naca via the HvReleaseData area. The HvReleaseData has the - * offset into the Naca of the pointer to the ItVpdAreas. - */ -struct ItVpdAreas itVpdAreas = { - .xSlicDesc = 0xc9a3e5c1, /* "ItVA" */ - .xSlicSize = sizeof(struct ItVpdAreas), - .xSlicVpdEntries = ItVpdMaxEntries, /* # VPD array entries */ - .xSlicDmaEntries = ItDmaMaxEntries, /* # DMA array entries */ - .xSlicMaxLogicalProcs = NR_CPUS * 2, /* Max logical procs */ - .xSlicMaxPhysicalProcs = maxPhysicalProcessors, /* Max physical procs */ - .xSlicDmaToksOffset = offsetof(struct ItVpdAreas, xPlicDmaToks), - .xSlicVpdAdrsOffset = offsetof(struct ItVpdAreas, xSlicVpdAdrs), - .xSlicDmaLensOffset = offsetof(struct ItVpdAreas, xPlicDmaLens), - .xSlicVpdLensOffset = offsetof(struct ItVpdAreas, xSlicVpdLens), - .xSlicMaxSlotLabels = 0, /* max slot labels */ - .xSlicMaxLpQueues = 1, /* max LP queues */ - .xPlicDmaLens = { 0 }, /* DMA lengths */ - .xPlicDmaToks = { 0 }, /* DMA tokens */ - .xSlicVpdLens = { /* VPD lengths */ - 0,0,0, /* 0 - 2 */ - sizeof(xItExtVpdPanel), /* 3 Extended VPD */ - sizeof(struct paca_struct), /* 4 length of Paca */ - 0, /* 5 */ - sizeof(struct ItIplParmsReal),/* 6 length of IPL parms */ - 26992, /* 7 length of MS VPD */ - 0, /* 8 */ - sizeof(struct ItLpNaca),/* 9 length of LP Naca */ - 0, /* 10 */ - 256, /* 11 length of Recovery Log Buf */ - sizeof(struct SpCommArea), /* 12 length of SP Comm Area */ - 0,0,0, /* 13 - 15 */ - sizeof(struct IoHriProcessorVpd),/* 16 length of Proc Vpd */ - 0,0,0,0,0,0, /* 17 - 22 */ - sizeof(struct hvlpevent_queue), /* 23 length of Lp Queue */ - 0,0 /* 24 - 25 */ - }, - .xSlicVpdAdrs = { /* VPD addresses */ - 0,0,0, /* 0 - 2 */ - &xItExtVpdPanel, /* 3 Extended VPD */ - &paca[0], /* 4 first Paca */ - 0, /* 5 */ - &xItIplParmsReal, /* 6 IPL parms */ - &xMsVpd, /* 7 MS Vpd */ - 0, /* 8 */ - &itLpNaca, /* 9 LpNaca */ - 0, /* 10 */ - &xRecoveryLogBuffer, /* 11 Recovery Log Buffer */ - &xSpCommArea, /* 12 SP Comm Area */ - 0,0,0, /* 13 - 15 */ - &xIoHriProcessorVpd, /* 16 Proc Vpd */ - 0,0,0,0,0,0, /* 17 - 22 */ - &hvlpevent_queue, /* 23 Lp Queue */ - 0,0 - } -}; diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile index afadb6e4a6d..bb5946b88b8 100644 --- a/arch/ppc64/kernel/Makefile +++ b/arch/ppc64/kernel/Makefile @@ -16,17 +16,10 @@ obj-y += vdso32/ vdso64/ obj-$(CONFIG_PPC_OF) += of_device.o -pci-obj-$(CONFIG_PPC_ISERIES) += iSeries_pci.o iSeries_irq.o \ - iSeries_VpdInfo.o pci-obj-$(CONFIG_PPC_MULTIPLATFORM) += pci_dn.o pci_direct_iommu.o obj-$(CONFIG_PCI) += pci.o pci_iommu.o iomap.o $(pci-obj-y) -obj-$(CONFIG_PPC_ISERIES) += HvCall.o HvLpConfig.o LparData.o \ - iSeries_setup.o ItLpQueue.o hvCall.o \ - mf.o HvLpEvent.o iSeries_proc.o iSeries_htab.o \ - iSeries_iommu.o - obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o i8259.o prom_init.o obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \ @@ -45,14 +38,12 @@ obj-$(CONFIG_MODULES) += module.o ppc_ksyms.o obj-$(CONFIG_PPC_RTAS) += rtas.o rtas_pci.o obj-$(CONFIG_RTAS_PROC) += rtas-proc.o obj-$(CONFIG_SCANLOG) += scanlog.o -obj-$(CONFIG_VIOPATH) += viopath.o obj-$(CONFIG_LPARCFG) += lparcfg.o obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o obj-$(CONFIG_BOOTX_TEXT) += btext.o obj-$(CONFIG_HVCS) += hvcserver.o vio-obj-$(CONFIG_PPC_PSERIES) += pSeries_vio.o -vio-obj-$(CONFIG_PPC_ISERIES) += iSeries_vio.o obj-$(CONFIG_IBMVIO) += vio.o $(vio-obj-y) obj-$(CONFIG_XICS) += xics.o obj-$(CONFIG_MPIC) += mpic.o @@ -68,7 +59,6 @@ obj-$(CONFIG_U3_DART) += u3_iommu.o ifdef CONFIG_SMP obj-$(CONFIG_PPC_PMAC) += pmac_smp.o smp-tbsync.o -obj-$(CONFIG_PPC_ISERIES) += iSeries_smp.o obj-$(CONFIG_PPC_PSERIES) += pSeries_smp.o obj-$(CONFIG_PPC_BPA) += pSeries_smp.o obj-$(CONFIG_PPC_MAPLE) += smp-tbsync.o diff --git a/arch/ppc64/kernel/bpa_iommu.c b/arch/ppc64/kernel/bpa_iommu.c index f33a7bccb0d..0cc463f2453 100644 --- a/arch/ppc64/kernel/bpa_iommu.c +++ b/arch/ppc64/kernel/bpa_iommu.c @@ -39,8 +39,8 @@ #include <asm/pmac_feature.h> #include <asm/abs_addr.h> #include <asm/system.h> +#include <asm/ppc-pci.h> -#include "pci.h" #include "bpa_iommu.h" static inline unsigned long diff --git a/arch/ppc64/kernel/bpa_setup.c b/arch/ppc64/kernel/bpa_setup.c index 57b3db66f45..9f915f4222b 100644 --- a/arch/ppc64/kernel/bpa_setup.c +++ b/arch/ppc64/kernel/bpa_setup.c @@ -43,8 +43,8 @@ #include <asm/time.h> #include <asm/nvram.h> #include <asm/cputable.h> +#include <asm/ppc-pci.h> -#include "pci.h" #include "bpa_iic.h" #include "bpa_iommu.h" diff --git a/arch/ppc64/kernel/eeh.c b/arch/ppc64/kernel/eeh.c index ba93fd73122..035d1b14a20 100644 --- a/arch/ppc64/kernel/eeh.c +++ b/arch/ppc64/kernel/eeh.c @@ -33,7 +33,7 @@ #include <asm/rtas.h> #include <asm/atomic.h> #include <asm/systemcfg.h> -#include "pci.h" +#include <asm/ppc-pci.h> #undef DEBUG diff --git a/arch/ppc64/kernel/head.S b/arch/ppc64/kernel/head.S index eb526c480b6..db0cd358762 100644 --- a/arch/ppc64/kernel/head.S +++ b/arch/ppc64/kernel/head.S @@ -1253,7 +1253,7 @@ unrecov_slb: * * On iSeries, the hypervisor must fill in at least one entry before * we get control (with relocate on). The address is give to the hv - * as a page number (see xLparMap in LparData.c), so this must be at a + * as a page number (see xLparMap in lpardata.c), so this must be at a * fixed address (the linker can't compute (u64)&initial_stab >> * PAGE_SHIFT). */ diff --git a/arch/ppc64/kernel/hvCall.S b/arch/ppc64/kernel/hvCall.S deleted file mode 100644 index 4c699eab1b9..00000000000 --- a/arch/ppc64/kernel/hvCall.S +++ /dev/null @@ -1,98 +0,0 @@ -/* - * arch/ppc64/kernel/hvCall.S - * - * - * This file contains the code to perform calls to the - * iSeries LPAR hypervisor - * - * 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/ppc_asm.h> -#include <asm/processor.h> - - .text - -/* - * Hypervisor call - * - * Invoke the iSeries hypervisor via the System Call instruction - * Parameters are passed to this routine in registers r3 - r10 - * - * r3 contains the HV function to be called - * r4-r10 contain the operands to the hypervisor function - * - */ - -_GLOBAL(HvCall) -_GLOBAL(HvCall0) -_GLOBAL(HvCall1) -_GLOBAL(HvCall2) -_GLOBAL(HvCall3) -_GLOBAL(HvCall4) -_GLOBAL(HvCall5) -_GLOBAL(HvCall6) -_GLOBAL(HvCall7) - - - mfcr r0 - std r0,-8(r1) - stdu r1,-(STACK_FRAME_OVERHEAD+16)(r1) - - /* r0 = 0xffffffffffffffff indicates a hypervisor call */ - - li r0,-1 - - /* Invoke the hypervisor */ - - sc - - ld r1,0(r1) - ld r0,-8(r1) - mtcrf 0xff,r0 - - /* return to caller, return value in r3 */ - - blr - -_GLOBAL(HvCall0Ret16) -_GLOBAL(HvCall1Ret16) -_GLOBAL(HvCall2Ret16) -_GLOBAL(HvCall3Ret16) -_GLOBAL(HvCall4Ret16) -_GLOBAL(HvCall5Ret16) -_GLOBAL(HvCall6Ret16) -_GLOBAL(HvCall7Ret16) - - mfcr r0 - std r0,-8(r1) - std r31,-16(r1) - stdu r1,-(STACK_FRAME_OVERHEAD+32)(r1) - - mr r31,r4 - li r0,-1 - mr r4,r5 - mr r5,r6 - mr r6,r7 - mr r7,r8 - mr r8,r9 - mr r9,r10 - - sc - - std r3,0(r31) - std r4,8(r31) - - mr r3,r5 - - ld r1,0(r1) - ld r0,-8(r1) - mtcrf 0xff,r0 - ld r31,-16(r1) - - blr - - diff --git a/arch/ppc64/kernel/iSeries_VpdInfo.c b/arch/ppc64/kernel/iSeries_VpdInfo.c deleted file mode 100644 index 5d921792571..00000000000 --- a/arch/ppc64/kernel/iSeries_VpdInfo.c +++ /dev/null @@ -1,268 +0,0 @@ -/* - * File iSeries_vpdInfo.c created by Allan Trautman on Fri Feb 2 2001. - * - * This code gets the card location of the hardware - * Copyright (C) 2001 <Allan H Trautman> <IBM Corp> - * Copyright (C) 2005 Stephen Rothwel, 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. - * - * 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 - * - * Change Activity: - * Created, Feb 2, 2001 - * Ported to ppc64, August 20, 2001 - * End Change Activity - */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <asm/types.h> -#include <asm/resource.h> - -#include <asm/iSeries/HvCallPci.h> -#include <asm/iSeries/HvTypes.h> -#include <asm/iSeries/iSeries_pci.h> - -/* - * Size of Bus VPD data - */ -#define BUS_VPDSIZE 1024 - -/* - * Bus Vpd Tags - */ -#define VpdEndOfAreaTag 0x79 -#define VpdIdStringTag 0x82 -#define VpdVendorAreaTag 0x84 - -/* - * Mfg Area Tags - */ -#define VpdFruFrameId 0x4649 // "FI" -#define VpdSlotMapFormat 0x4D46 // "MF" -#define VpdSlotMap 0x534D // "SM" - -/* - * Structures of the areas - */ -struct MfgVpdAreaStruct { - u16 Tag; - u8 TagLength; - u8 AreaData1; - u8 AreaData2; -}; -typedef struct MfgVpdAreaStruct MfgArea; -#define MFG_ENTRY_SIZE 3 - -struct SlotMapStruct { - u8 AgentId; - u8 SecondaryAgentId; - u8 PhbId; - char CardLocation[3]; - char Parms[8]; - char Reserved[2]; -}; -typedef struct SlotMapStruct SlotMap; -#define SLOT_ENTRY_SIZE 16 - -/* - * Parse the Slot Area - */ -static void __init iSeries_Parse_SlotArea(SlotMap *MapPtr, int MapLen, - HvAgentId agent, u8 *PhbId, char card[4]) -{ - int SlotMapLen = MapLen; - SlotMap *SlotMapPtr = MapPtr; - - /* - * Parse Slot label until we find the one requested - */ - while (SlotMapLen > 0) { - if (SlotMapPtr->AgentId == agent) { - /* - * If Phb wasn't found, grab the entry first one found. - */ - if (*PhbId == 0xff) - *PhbId = SlotMapPtr->PhbId; - /* Found it, extract the data. */ - if (SlotMapPtr->PhbId == *PhbId) { - memcpy(card, &SlotMapPtr->CardLocation, 3); - card[3] = 0; - break; - } - } - /* Point to the next Slot */ - SlotMapPtr = (SlotMap *)((char *)SlotMapPtr + SLOT_ENTRY_SIZE); - SlotMapLen -= SLOT_ENTRY_SIZE; - } -} - -/* - * Parse the Mfg Area - */ -static void __init iSeries_Parse_MfgArea(u8 *AreaData, int AreaLen, - HvAgentId agent, u8 *PhbId, - u8 *frame, char card[4]) -{ - MfgArea *MfgAreaPtr = (MfgArea *)AreaData; - int MfgAreaLen = AreaLen; - u16 SlotMapFmt = 0; - - /* Parse Mfg Data */ - while (MfgAreaLen > 0) { - int MfgTagLen = MfgAreaPtr->TagLength; - /* Frame ID (FI 4649020310 ) */ - if (MfgAreaPtr->Tag == VpdFruFrameId) /* FI */ - *frame = MfgAreaPtr->AreaData1; - /* Slot Map Format (MF 4D46020004 ) */ - else if (MfgAreaPtr->Tag == VpdSlotMapFormat) /* MF */ - SlotMapFmt = (MfgAreaPtr->AreaData1 * 256) - + MfgAreaPtr->AreaData2; - /* Slot Map (SM 534D90 */ - else if (MfgAreaPtr->Tag == VpdSlotMap) { /* SM */ - SlotMap *SlotMapPtr; - - if (SlotMapFmt == 0x1004) - SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr - + MFG_ENTRY_SIZE + 1); - else - SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr - + MFG_ENTRY_SIZE); - iSeries_Parse_SlotArea(SlotMapPtr, MfgTagLen, - agent, PhbId, card); - } - /* - * Point to the next Mfg Area - * Use defined size, sizeof give wrong answer - */ - MfgAreaPtr = (MfgArea *)((char *)MfgAreaPtr + MfgTagLen - + MFG_ENTRY_SIZE); - MfgAreaLen -= (MfgTagLen + MFG_ENTRY_SIZE); - } -} - -/* - * Look for "BUS".. Data is not Null terminated. - * PHBID of 0xFF indicates PHB was not found in VPD Data. - */ -static int __init iSeries_Parse_PhbId(u8 *AreaPtr, int AreaLength) -{ - u8 *PhbPtr = AreaPtr; - int DataLen = AreaLength; - char PhbId = 0xFF; - - while (DataLen > 0) { - if ((*PhbPtr == 'B') && (*(PhbPtr + 1) == 'U') - && (*(PhbPtr + 2) == 'S')) { - PhbPtr += 3; - while (*PhbPtr == ' ') - ++PhbPtr; - PhbId = (*PhbPtr & 0x0F); - break; - } - ++PhbPtr; - --DataLen; - } - return PhbId; -} - -/* - * Parse out the VPD Areas - */ -static void __init iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen, - HvAgentId agent, u8 *frame, char card[4]) -{ - u8 *TagPtr = VpdData; - int DataLen = VpdDataLen - 3; - u8 PhbId; - - while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) { - int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256); - u8 *AreaData = TagPtr + 3; - - if (*TagPtr == VpdIdStringTag) - PhbId = iSeries_Parse_PhbId(AreaData, AreaLen); - else if (*TagPtr == VpdVendorAreaTag) - iSeries_Parse_MfgArea(AreaData, AreaLen, - agent, &PhbId, frame, card); - /* Point to next Area. */ - TagPtr = AreaData + AreaLen; - DataLen -= AreaLen; - } -} - -static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent, - u8 *frame, char card[4]) -{ - int BusVpdLen = 0; - u8 *BusVpdPtr = kmalloc(BUS_VPDSIZE, GFP_KERNEL); - - if (BusVpdPtr == NULL) { - printk("PCI: Bus VPD Buffer allocation failure.\n"); - return; - } - BusVpdLen = HvCallPci_getBusVpd(bus, ISERIES_HV_ADDR(BusVpdPtr), - BUS_VPDSIZE); - if (BusVpdLen == 0) { - printk("PCI: Bus VPD Buffer zero length.\n"); - goto out_free; - } - /* printk("PCI: BusVpdPtr: %p, %d\n",BusVpdPtr, BusVpdLen); */ - /* Make sure this is what I think it is */ - if (*BusVpdPtr != VpdIdStringTag) { /* 0x82 */ - printk("PCI: Bus VPD Buffer missing starting tag.\n"); - goto out_free; - } - iSeries_Parse_Vpd(BusVpdPtr, BusVpdLen, agent, frame, card); -out_free: - kfree(BusVpdPtr); -} - -/* - * Prints the device information. - * - Pass in pci_dev* pointer to the device. - * - Pass in the device count - * - * Format: - * PCI: Bus 0, Device 26, Vendor 0x12AE Frame 1, Card C10 Ethernet - * controller - */ -void __init iSeries_Device_Information(struct pci_dev *PciDev, int count) -{ - struct iSeries_Device_Node *DevNode = PciDev->sysdata; - u16 bus; - u8 frame; - char card[4]; - HvSubBusNumber subbus; - HvAgentId agent; - - if (DevNode == NULL) { - printk("%d. PCI: iSeries_Device_Information DevNode is NULL\n", - count); - return; - } - - bus = ISERIES_BUS(DevNode); - subbus = ISERIES_SUBBUS(DevNode); - agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus), - ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus)); - iSeries_Get_Location_Code(bus, agent, &frame, card); - - printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, Card %4s ", - count, bus, PCI_SLOT(PciDev->devfn), PciDev->vendor, - frame, card); - printk("0x%04X\n", (int)(PciDev->class >> 8)); -} diff --git a/arch/ppc64/kernel/iSeries_htab.c b/arch/ppc64/kernel/iSeries_htab.c deleted file mode 100644 index 9a2be3abf34..00000000000 --- a/arch/ppc64/kernel/iSeries_htab.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * iSeries hashtable management. - * Derived from pSeries_htab.c - * - * SMP scalability work: - * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM - * - * 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/machdep.h> -#include <asm/pgtable.h> -#include <asm/mmu.h> -#include <asm/mmu_context.h> -#include <asm/iSeries/HvCallHpt.h> -#include <asm/abs_addr.h> -#include <linux/spinlock.h> - -static spinlock_t iSeries_hlocks[64] __cacheline_aligned_in_smp = { [0 ... 63] = SPIN_LOCK_UNLOCKED}; - -/* - * Very primitive algorithm for picking up a lock - */ -static inline void iSeries_hlock(unsigned long slot) -{ - if (slot & 0x8) - slot = ~slot; - spin_lock(&iSeries_hlocks[(slot >> 4) & 0x3f]); -} - -static inline void iSeries_hunlock(unsigned long slot) -{ - if (slot & 0x8) - slot = ~slot; - spin_unlock(&iSeries_hlocks[(slot >> 4) & 0x3f]); -} - -static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va, - unsigned long prpn, unsigned long vflags, - unsigned long rflags) -{ - unsigned long arpn; - long slot; - hpte_t lhpte; - int secondary = 0; - - /* - * The hypervisor tries both primary and secondary. - * If we are being called to insert in the secondary, - * it means we have already tried both primary and secondary, - * so we return failure immediately. - */ - if (vflags & HPTE_V_SECONDARY) - return -1; - - iSeries_hlock(hpte_group); - - slot = HvCallHpt_findValid(&lhpte, va >> PAGE_SHIFT); - BUG_ON(lhpte.v & HPTE_V_VALID); - - if (slot == -1) { /* No available entry found in either group */ - iSeries_hunlock(hpte_group); - return -1; - } - - if (slot < 0) { /* MSB set means secondary group */ - vflags |= HPTE_V_VALID; - secondary = 1; - slot &= 0x7fffffffffffffff; - } - - arpn = phys_to_abs(prpn << PAGE_SHIFT) >> PAGE_SHIFT; - - lhpte.v = (va >> 23) << HPTE_V_AVPN_SHIFT | vflags | HPTE_V_VALID; - lhpte.r = (arpn << HPTE_R_RPN_SHIFT) | rflags; - - /* Now fill in the actual HPTE */ - HvCallHpt_addValidate(slot, secondary, &lhpte); - - iSeries_hunlock(hpte_group); - - return (secondary << 3) | (slot & 7); -} - -long iSeries_hpte_bolt_or_insert(unsigned long hpte_group, - unsigned long va, unsigned long prpn, unsigned long vflags, - unsigned long rflags) -{ - long slot; - hpte_t lhpte; - - slot = HvCallHpt_findValid(&lhpte, va >> PAGE_SHIFT); - - if (lhpte.v & HPTE_V_VALID) { - /* Bolt the existing HPTE */ - HvCallHpt_setSwBits(slot, 0x10, 0); - HvCallHpt_setPp(slot, PP_RWXX); - return 0; - } - - return iSeries_hpte_insert(hpte_group, va, prpn, vflags, rflags); -} - -static unsigned long iSeries_hpte_getword0(unsigned long slot) -{ - hpte_t hpte; - - HvCallHpt_get(&hpte, slot); - return hpte.v; -} - -static long iSeries_hpte_remove(unsigned long hpte_group) -{ - unsigned long slot_offset; - int i; - unsigned long hpte_v; - - /* Pick a random slot to start at */ - slot_offset = mftb() & 0x7; - - iSeries_hlock(hpte_group); - - for (i = 0; i < HPTES_PER_GROUP; i++) { - hpte_v = iSeries_hpte_getword0(hpte_group + slot_offset); - - if (! (hpte_v & HPTE_V_BOLTED)) { - HvCallHpt_invalidateSetSwBitsGet(hpte_group + - slot_offset, 0, 0); - iSeries_hunlock(hpte_group); - return i; - } - - slot_offset++; - slot_offset &= 0x7; - } - - iSeries_hunlock(hpte_group); - - return -1; -} - -/* - * The HyperVisor expects the "flags" argument in this form: - * bits 0..59 : reserved - * bit 60 : N - * bits 61..63 : PP2,PP1,PP0 - */ -static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp, - unsigned long va, int large, int local) -{ - hpte_t hpte; - unsigned long avpn = va >> 23; - - iSeries_hlock(slot); - - HvCallHpt_get(&hpte, slot); - if ((HPTE_V_AVPN_VAL(hpte.v) == avpn) && (hpte.v & HPTE_V_VALID)) { - /* - * Hypervisor expects bits as NPPP, which is - * different from how they are mapped in our PP. - */ - HvCallHpt_setPp(slot, (newpp & 0x3) | ((newpp & 0x4) << 1)); - iSeries_hunlock(slot); - return 0; - } - iSeries_hunlock(slot); - - return -1; -} - -/* - * Functions used to find the PTE for a particular virtual address. - * Only used during boot when bolting pages. - * - * Input : vpn : virtual page number - * Output: PTE index within the page table of the entry - * -1 on failure - */ -static long iSeries_hpte_find(unsigned long vpn) -{ - hpte_t hpte; - long slot; - - /* - * The HvCallHpt_findValid interface is as follows: - * 0xffffffffffffffff : No entry found. - * 0x00000000xxxxxxxx : Entry found in primary group, slot x - * 0x80000000xxxxxxxx : Entry found in secondary group, slot x - */ - slot = HvCallHpt_findValid(&hpte, vpn); - if (hpte.v & HPTE_V_VALID) { - if (slot < 0) { - slot &= 0x7fffffffffffffff; - slot = -slot; - } - } else - slot = -1; - return slot; -} - -/* - * Update the page protection bits. Intended to be used to create - * guard pages for kernel data structures on pages which are bolted - * in the HPT. Assumes pages being operated on will not be stolen. - * Does not work on large pages. - * - * No need to lock here because we should be the only user. - */ -static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea) -{ - unsigned long vsid,va,vpn; - long slot; - - vsid = get_kernel_vsid(ea); - va = (vsid << 28) | (ea & 0x0fffffff); - vpn = va >> PAGE_SHIFT; - slot = iSeries_hpte_find(vpn); - if (slot == -1) - panic("updateboltedpp: Could not find page to bolt\n"); - HvCallHpt_setPp(slot, newpp); -} - -static void iSeries_hpte_invalidate(unsigned long slot, unsigned long va, - int large, int local) -{ - unsigned long hpte_v; - unsigned long avpn = va >> 23; - unsigned long flags; - - local_irq_save(flags); - - iSeries_hlock(slot); - - hpte_v = iSeries_hpte_getword0(slot); - - if ((HPTE_V_AVPN_VAL(hpte_v) == avpn) && (hpte_v & HPTE_V_VALID)) - HvCallHpt_invalidateSetSwBitsGet(slot, 0, 0); - - iSeries_hunlock(slot); - - local_irq_restore(flags); -} - -void hpte_init_iSeries(void) -{ - ppc_md.hpte_invalidate = iSeries_hpte_invalidate; - ppc_md.hpte_updatepp = iSeries_hpte_updatepp; - ppc_md.hpte_updateboltedpp = iSeries_hpte_updateboltedpp; - ppc_md.hpte_insert = iSeries_hpte_insert; - ppc_md.hpte_remove = iSeries_hpte_remove; - - htab_finish_init(); -} diff --git a/arch/ppc64/kernel/iSeries_iommu.c b/arch/ppc64/kernel/iSeries_iommu.c deleted file mode 100644 index 287db32d986..00000000000 --- a/arch/ppc64/kernel/iSeries_iommu.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * arch/ppc64/kernel/iSeries_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, iSeries-specific parts. - * - * - * 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/types.h> -#include <linux/dma-mapping.h> -#include <linux/list.h> - -#include <asm/iommu.h> -#include <asm/tce.h> -#include <asm/machdep.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/iSeries_pci.h> - -extern struct list_head iSeries_Global_Device_List; - - -static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages, - unsigned long uaddr, enum dma_data_direction direction) -{ - u64 rc; - union tce_entry tce; - - while (npages--) { - tce.te_word = 0; - tce.te_bits.tb_rpn = virt_to_abs(uaddr) >> PAGE_SHIFT; - - if (tbl->it_type == TCE_VB) { - /* Virtual Bus */ - tce.te_bits.tb_valid = 1; - tce.te_bits.tb_allio = 1; - if (direction != DMA_TO_DEVICE) - tce.te_bits.tb_rdwr = 1; - } else { - /* PCI Bus */ - tce.te_bits.tb_rdwr = 1; /* Read allowed */ - if (direction != DMA_TO_DEVICE) - tce.te_bits.tb_pciwr = 1; - } - - rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, - tce.te_word); - if (rc) - panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n", - rc); - index++; - uaddr += PAGE_SIZE; - } -} - -static void tce_free_iSeries(struct iommu_table *tbl, long index, long npages) -{ - u64 rc; - - while (npages--) { - rc = HvCallXm_setTce((u64)tbl->it_index, (u64)index, 0); - if (rc) - panic("PCI_DMA: HvCallXm_setTce failed, Rc: 0x%lx\n", - rc); - index++; - } -} - -#ifdef CONFIG_PCI -/* - * This function compares the known tables to find an iommu_table - * that has already been built for hardware TCEs. - */ -static struct iommu_table *iommu_table_find(struct iommu_table * tbl) -{ - struct iSeries_Device_Node *dp; - - list_for_each_entry(dp, &iSeries_Global_Device_List, Device_List) { - if ((dp->iommu_table != NULL) && - (dp->iommu_table->it_type == TCE_PCI) && - (dp->iommu_table->it_offset == tbl->it_offset) && - (dp->iommu_table->it_index == tbl->it_index) && - (dp->iommu_table->it_size == tbl->it_size)) - return dp->iommu_table; - } - return NULL; -} - -/* - * Call Hv with the architected data structure to get TCE table info. - * info. Put the returned data into the Linux representation of the - * TCE table data. - * The Hardware Tce table comes in three flavors. - * 1. TCE table shared between Buses. - * 2. TCE table per Bus. - * 3. TCE Table per IOA. - */ -static void iommu_table_getparms(struct iSeries_Device_Node* dn, - struct iommu_table* tbl) -{ - struct iommu_table_cb *parms; - - parms = kmalloc(sizeof(*parms), GFP_KERNEL); - if (parms == NULL) - panic("PCI_DMA: TCE Table Allocation failed."); - - memset(parms, 0, sizeof(*parms)); - - parms->itc_busno = ISERIES_BUS(dn); - parms->itc_slotno = dn->LogicalSlot; - parms->itc_virtbus = 0; - - HvCallXm_getTceTableParms(ISERIES_HV_ADDR(parms)); - - if (parms->itc_size == 0) - panic("PCI_DMA: parms->size is zero, parms is 0x%p", parms); - - /* itc_size is in pages worth of table, it_size is in # of entries */ - tbl->it_size = (parms->itc_size * PAGE_SIZE) / sizeof(union tce_entry); - tbl->it_busno = parms->itc_busno; - tbl->it_offset = parms->itc_offset; - tbl->it_index = parms->itc_index; - tbl->it_blocksize = 1; - tbl->it_type = TCE_PCI; - - kfree(parms); -} - - -void iommu_devnode_init_iSeries(struct iSeries_Device_Node *dn) -{ - struct iommu_table *tbl; - - tbl = kmalloc(sizeof(struct iommu_table), GFP_KERNEL); - - iommu_table_getparms(dn, tbl); - - /* Look for existing tce table */ - dn->iommu_table = iommu_table_find(tbl); - if (dn->iommu_table == NULL) - dn->iommu_table = iommu_init_table(tbl); - else - kfree(tbl); -} -#endif - -static void iommu_dev_setup_iSeries(struct pci_dev *dev) { } -static void iommu_bus_setup_iSeries(struct pci_bus *bus) { } - -void iommu_init_early_iSeries(void) -{ - ppc_md.tce_build = tce_build_iSeries; - ppc_md.tce_free = tce_free_iSeries; - - ppc_md.iommu_dev_setup = iommu_dev_setup_iSeries; - ppc_md.iommu_bus_setup = iommu_bus_setup_iSeries; - - pci_iommu_init(); -} diff --git a/arch/ppc64/kernel/iSeries_irq.c b/arch/ppc64/kernel/iSeries_irq.c deleted file mode 100644 index 0170682a8ca..00000000000 --- a/arch/ppc64/kernel/iSeries_irq.c +++ /dev/null @@ -1,366 +0,0 @@ -/* - * This module supports the iSeries PCI bus interrupt handling - * Copyright (C) 20yy <Robert L Holtorf> <IBM Corp> - * Copyright (C) 2004-2005 IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License 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 - * - * Change Activity: - * Created, December 13, 2000 by Wayne Holm - * End Change Activity - */ -#include <linux/config.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/threads.h> -#include <linux/smp.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/bootmem.h> -#include <linux/ide.h> -#include <linux/irq.h> -#include <linux/spinlock.h> - -#include <asm/ppcdebug.h> -#include <asm/iSeries/HvTypes.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/HvCallPci.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/iSeries_irq.h> - -/* This maps virtual irq numbers to real irqs */ -unsigned int virt_irq_to_real_map[NR_IRQS]; - -/* The next available virtual irq number */ -/* Note: the pcnet32 driver assumes irq numbers < 2 aren't valid. :( */ -static int next_virtual_irq = 2; - -static long Pci_Interrupt_Count; -static long Pci_Event_Count; - -enum XmPciLpEvent_Subtype { - XmPciLpEvent_BusCreated = 0, // PHB has been created - XmPciLpEvent_BusError = 1, // PHB has failed - XmPciLpEvent_BusFailed = 2, // Msg to Secondary, Primary failed bus - XmPciLpEvent_NodeFailed = 4, // Multi-adapter bridge has failed - XmPciLpEvent_NodeRecovered = 5, // Multi-adapter bridge has recovered - XmPciLpEvent_BusRecovered = 12, // PHB has been recovered - XmPciLpEvent_UnQuiesceBus = 18, // Secondary bus unqiescing - XmPciLpEvent_BridgeError = 21, // Bridge Error - XmPciLpEvent_SlotInterrupt = 22 // Slot interrupt -}; - -struct XmPciLpEvent_BusInterrupt { - HvBusNumber busNumber; - HvSubBusNumber subBusNumber; -}; - -struct XmPciLpEvent_NodeInterrupt { - HvBusNumber busNumber; - HvSubBusNumber subBusNumber; - HvAgentId deviceId; -}; - -struct XmPciLpEvent { - struct HvLpEvent hvLpEvent; - - union { - u64 alignData; // Align on an 8-byte boundary - - struct { - u32 fisr; - HvBusNumber busNumber; - HvSubBusNumber subBusNumber; - HvAgentId deviceId; - } slotInterrupt; - - struct XmPciLpEvent_BusInterrupt busFailed; - struct XmPciLpEvent_BusInterrupt busRecovered; - struct XmPciLpEvent_BusInterrupt busCreated; - - struct XmPciLpEvent_NodeInterrupt nodeFailed; - struct XmPciLpEvent_NodeInterrupt nodeRecovered; - - } eventData; - -}; - -static void intReceived(struct XmPciLpEvent *eventParm, - struct pt_regs *regsParm) -{ - int irq; - - ++Pci_Interrupt_Count; - - switch (eventParm->hvLpEvent.xSubtype) { - case XmPciLpEvent_SlotInterrupt: - irq = eventParm->hvLpEvent.xCorrelationToken; - /* Dispatch the interrupt handlers for this irq */ - ppc_irq_dispatch_handler(regsParm, irq); - HvCallPci_eoi(eventParm->eventData.slotInterrupt.busNumber, - eventParm->eventData.slotInterrupt.subBusNumber, - eventParm->eventData.slotInterrupt.deviceId); - break; - /* Ignore error recovery events for now */ - case XmPciLpEvent_BusCreated: - printk(KERN_INFO "intReceived: system bus %d created\n", - eventParm->eventData.busCreated.busNumber); - break; - case XmPciLpEvent_BusError: - case XmPciLpEvent_BusFailed: - printk(KERN_INFO "intReceived: system bus %d failed\n", - eventParm->eventData.busFailed.busNumber); - break; - case XmPciLpEvent_BusRecovered: - case XmPciLpEvent_UnQuiesceBus: - printk(KERN_INFO "intReceived: system bus %d recovered\n", - eventParm->eventData.busRecovered.busNumber); - break; - case XmPciLpEvent_NodeFailed: - case XmPciLpEvent_BridgeError: - printk(KERN_INFO - "intReceived: multi-adapter bridge %d/%d/%d failed\n", - eventParm->eventData.nodeFailed.busNumber, - eventParm->eventData.nodeFailed.subBusNumber, - eventParm->eventData.nodeFailed.deviceId); - break; - case XmPciLpEvent_NodeRecovered: - printk(KERN_INFO - "intReceived: multi-adapter bridge %d/%d/%d recovered\n", - eventParm->eventData.nodeRecovered.busNumber, - eventParm->eventData.nodeRecovered.subBusNumber, - eventParm->eventData.nodeRecovered.deviceId); - break; - default: - printk(KERN_ERR - "intReceived: unrecognized event subtype 0x%x\n", - eventParm->hvLpEvent.xSubtype); - break; - } -} - -static void XmPciLpEvent_handler(struct HvLpEvent *eventParm, - struct pt_regs *regsParm) -{ -#ifdef CONFIG_PCI - ++Pci_Event_Count; - - if (eventParm && (eventParm->xType == HvLpEvent_Type_PciIo)) { - switch (eventParm->xFlags.xFunction) { - case HvLpEvent_Function_Int: - intReceived((struct XmPciLpEvent *)eventParm, regsParm); - break; - case HvLpEvent_Function_Ack: - printk(KERN_ERR - "XmPciLpEvent_handler: unexpected ack received\n"); - break; - default: - printk(KERN_ERR - "XmPciLpEvent_handler: unexpected event function %d\n", - (int)eventParm->xFlags.xFunction); - break; - } - } else if (eventParm) - printk(KERN_ERR - "XmPciLpEvent_handler: Unrecognized PCI event type 0x%x\n", - (int)eventParm->xType); - else - printk(KERN_ERR "XmPciLpEvent_handler: NULL event received\n"); -#endif -} - -/* - * This is called by init_IRQ. set in ppc_md.init_IRQ by iSeries_setup.c - * It must be called before the bus walk. - */ -void __init iSeries_init_IRQ(void) -{ - /* Register PCI event handler and open an event path */ - int xRc; - - xRc = HvLpEvent_registerHandler(HvLpEvent_Type_PciIo, - &XmPciLpEvent_handler); - if (xRc == 0) { - xRc = HvLpEvent_openPath(HvLpEvent_Type_PciIo, 0); - if (xRc != 0) - printk(KERN_ERR "iSeries_init_IRQ: open event path " - "failed with rc 0x%x\n", xRc); - } else - printk(KERN_ERR "iSeries_init_IRQ: register handler " - "failed with rc 0x%x\n", xRc); -} - -#define REAL_IRQ_TO_BUS(irq) ((((irq) >> 6) & 0xff) + 1) -#define REAL_IRQ_TO_IDSEL(irq) ((((irq) >> 3) & 7) + 1) -#define REAL_IRQ_TO_FUNC(irq) ((irq) & 7) - -/* - * This will be called by device drivers (via enable_IRQ) - * to enable INTA in the bridge interrupt status register. - */ -static void iSeries_enable_IRQ(unsigned int irq) -{ - u32 bus, deviceId, function, mask; - const u32 subBus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; - - /* The IRQ has already been locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - deviceId = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Unmask secondary INTA */ - mask = 0x80000000; - HvCallPci_unmaskInterrupts(bus, subBus, deviceId, mask); - PPCDBG(PPCDBG_BUSWALK, "iSeries_enable_IRQ 0x%02X.%02X.%02X 0x%04X\n", - bus, subBus, deviceId, irq); -} - -/* This is called by iSeries_activate_IRQs */ -static unsigned int iSeries_startup_IRQ(unsigned int irq) -{ - u32 bus, deviceId, function, mask; - const u32 subBus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; - - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - deviceId = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Link the IRQ number to the bridge */ - HvCallXm_connectBusUnit(bus, subBus, deviceId, irq); - - /* Unmask bridge interrupts in the FISR */ - mask = 0x01010000 << function; - HvCallPci_unmaskFisr(bus, subBus, deviceId, mask); - iSeries_enable_IRQ(irq); - return 0; -} - -/* - * This is called out of iSeries_fixup to activate interrupt - * generation for usable slots - */ -void __init iSeries_activate_IRQs() -{ - int irq; - unsigned long flags; - - for_each_irq (irq) { - irq_desc_t *desc = get_irq_desc(irq); - - if (desc && desc->handler && desc->handler->startup) { - spin_lock_irqsave(&desc->lock, flags); - desc->handler->startup(irq); - spin_unlock_irqrestore(&desc->lock, flags); - } - } -} - -/* this is not called anywhere currently */ -static void iSeries_shutdown_IRQ(unsigned int irq) -{ - u32 bus, deviceId, function, mask; - const u32 subBus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; - - /* irq should be locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - deviceId = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Invalidate the IRQ number in the bridge */ - HvCallXm_connectBusUnit(bus, subBus, deviceId, 0); - - /* Mask bridge interrupts in the FISR */ - mask = 0x01010000 << function; - HvCallPci_maskFisr(bus, subBus, deviceId, mask); -} - -/* - * This will be called by device drivers (via disable_IRQ) - * to disable INTA in the bridge interrupt status register. - */ -static void iSeries_disable_IRQ(unsigned int irq) -{ - u32 bus, deviceId, function, mask; - const u32 subBus = 0; - unsigned int rirq = virt_irq_to_real_map[irq]; - - /* The IRQ has already been locked by the caller */ - bus = REAL_IRQ_TO_BUS(rirq); - function = REAL_IRQ_TO_FUNC(rirq); - deviceId = (REAL_IRQ_TO_IDSEL(rirq) << 4) + function; - - /* Mask secondary INTA */ - mask = 0x80000000; - HvCallPci_maskInterrupts(bus, subBus, deviceId, mask); - PPCDBG(PPCDBG_BUSWALK, "iSeries_disable_IRQ 0x%02X.%02X.%02X 0x%04X\n", - bus, subBus, deviceId, irq); -} - -/* - * Need to define this so ppc_irq_dispatch_handler will NOT call - * enable_IRQ at the end of interrupt handling. However, this does - * nothing because there is not enough information provided to do - * the EOI HvCall. This is done by XmPciLpEvent.c - */ -static void iSeries_end_IRQ(unsigned int irq) -{ -} - -static hw_irq_controller iSeries_IRQ_handler = { - .typename = "iSeries irq controller", - .startup = iSeries_startup_IRQ, - .shutdown = iSeries_shutdown_IRQ, - .enable = iSeries_enable_IRQ, - .disable = iSeries_disable_IRQ, - .end = iSeries_end_IRQ -}; - -/* - * This is called out of iSeries_scan_slot to allocate an IRQ for an EADS slot - * It calculates the irq value for the slot. - * Note that subBusNumber is always 0 (at the moment at least). - */ -int __init iSeries_allocate_IRQ(HvBusNumber busNumber, - HvSubBusNumber subBusNumber, HvAgentId deviceId) -{ - unsigned int realirq, virtirq; - u8 idsel = (deviceId >> 4); - u8 function = deviceId & 7; - - virtirq = next_virtual_irq++; - realirq = ((busNumber - 1) << 6) + ((idsel - 1) << 3) + function; - virt_irq_to_real_map[virtirq] = realirq; - - irq_desc[virtirq].handler = &iSeries_IRQ_handler; - return virtirq; -} - -int virt_irq_create_mapping(unsigned int real_irq) -{ - BUG(); /* Don't call this on iSeries, yet */ - - return 0; -} - -void virt_irq_init(void) -{ - return; -} - diff --git a/arch/ppc64/kernel/iSeries_pci.c b/arch/ppc64/kernel/iSeries_pci.c deleted file mode 100644 index fbc273c32bc..00000000000 --- a/arch/ppc64/kernel/iSeries_pci.c +++ /dev/null @@ -1,905 +0,0 @@ -/* - * iSeries_pci.c - * - * Copyright (C) 2001 Allan Trautman, IBM Corporation - * - * iSeries specific routines for PCI. - * - * Based on code from pci.c and iSeries_pci.c 32bit - * - * 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/kernel.h> -#include <linux/list.h> -#include <linux/string.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/ide.h> -#include <linux/pci.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/prom.h> -#include <asm/machdep.h> -#include <asm/pci-bridge.h> -#include <asm/ppcdebug.h> -#include <asm/iommu.h> - -#include <asm/iSeries/HvCallPci.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/iSeries_irq.h> -#include <asm/iSeries/iSeries_pci.h> -#include <asm/iSeries/mf.h> - -#include "pci.h" - -extern unsigned long io_page_mask; - -/* - * Forward declares of prototypes. - */ -static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn); -static void scan_PHB_slots(struct pci_controller *Phb); -static void scan_EADS_bridge(HvBusNumber Bus, HvSubBusNumber SubBus, int IdSel); -static int scan_bridge_slot(HvBusNumber Bus, struct HvCallPci_BridgeInfo *Info); - -LIST_HEAD(iSeries_Global_Device_List); - -static int DeviceCount; - -/* Counters and control flags. */ -static long Pci_Io_Read_Count; -static long Pci_Io_Write_Count; -#if 0 -static long Pci_Cfg_Read_Count; -static long Pci_Cfg_Write_Count; -#endif -static long Pci_Error_Count; - -static int Pci_Retry_Max = 3; /* Only retry 3 times */ -static int Pci_Error_Flag = 1; /* Set Retry Error on. */ - -static struct pci_ops iSeries_pci_ops; - -/* - * Table defines - * Each Entry size is 4 MB * 1024 Entries = 4GB I/O address space. - */ -#define IOMM_TABLE_MAX_ENTRIES 1024 -#define IOMM_TABLE_ENTRY_SIZE 0x0000000000400000UL -#define BASE_IO_MEMORY 0xE000000000000000UL - -static unsigned long max_io_memory = 0xE000000000000000UL; -static long current_iomm_table_entry; - -/* - * Lookup Tables. - */ -static struct iSeries_Device_Node **iomm_table; -static u8 *iobar_table; - -/* - * Static and Global variables - */ -static char *pci_io_text = "iSeries PCI I/O"; -static DEFINE_SPINLOCK(iomm_table_lock); - -/* - * iomm_table_initialize - * - * Allocates and initalizes the Address Translation Table and Bar - * Tables to get them ready for use. Must be called before any - * I/O space is handed out to the device BARs. - */ -static void iomm_table_initialize(void) -{ - spin_lock(&iomm_table_lock); - iomm_table = kmalloc(sizeof(*iomm_table) * IOMM_TABLE_MAX_ENTRIES, - GFP_KERNEL); - iobar_table = kmalloc(sizeof(*iobar_table) * IOMM_TABLE_MAX_ENTRIES, - GFP_KERNEL); - spin_unlock(&iomm_table_lock); - if ((iomm_table == NULL) || (iobar_table == NULL)) - panic("PCI: I/O tables allocation failed.\n"); -} - -/* - * iomm_table_allocate_entry - * - * Adds pci_dev entry in address translation table - * - * - Allocates the number of entries required in table base on BAR - * size. - * - Allocates starting at BASE_IO_MEMORY and increases. - * - The size is round up to be a multiple of entry size. - * - CurrentIndex is incremented to keep track of the last entry. - * - Builds the resource entry for allocated BARs. - */ -static void iomm_table_allocate_entry(struct pci_dev *dev, int bar_num) -{ - struct resource *bar_res = &dev->resource[bar_num]; - long bar_size = pci_resource_len(dev, bar_num); - - /* - * No space to allocate, quick exit, skip Allocation. - */ - if (bar_size == 0) - return; - /* - * Set Resource values. - */ - spin_lock(&iomm_table_lock); - bar_res->name = pci_io_text; - bar_res->start = - IOMM_TABLE_ENTRY_SIZE * current_iomm_table_entry; - bar_res->start += BASE_IO_MEMORY; - bar_res->end = bar_res->start + bar_size - 1; - /* - * Allocate the number of table entries needed for BAR. - */ - while (bar_size > 0 ) { - iomm_table[current_iomm_table_entry] = dev->sysdata; - iobar_table[current_iomm_table_entry] = bar_num; - bar_size -= IOMM_TABLE_ENTRY_SIZE; - ++current_iomm_table_entry; - } - max_io_memory = BASE_IO_MEMORY + - (IOMM_TABLE_ENTRY_SIZE * current_iomm_table_entry); - spin_unlock(&iomm_table_lock); -} - -/* - * allocate_device_bars - * - * - Allocates ALL pci_dev BAR's and updates the resources with the - * BAR value. BARS with zero length will have the resources - * The HvCallPci_getBarParms is used to get the size of the BAR - * space. It calls iomm_table_allocate_entry to allocate - * each entry. - * - Loops through The Bar resources(0 - 5) including the ROM - * is resource(6). - */ -static void allocate_device_bars(struct pci_dev *dev) -{ - struct resource *bar_res; - int bar_num; - - for (bar_num = 0; bar_num <= PCI_ROM_RESOURCE; ++bar_num) { - bar_res = &dev->resource[bar_num]; - iomm_table_allocate_entry(dev, bar_num); - } -} - -/* - * Log error information to system console. - * Filter out the device not there errors. - * PCI: EADs Connect Failed 0x18.58.10 Rc: 0x00xx - * PCI: Read Vendor Failed 0x18.58.10 Rc: 0x00xx - * PCI: Connect Bus Unit Failed 0x18.58.10 Rc: 0x00xx - */ -static void pci_Log_Error(char *Error_Text, int Bus, int SubBus, - int AgentId, int HvRc) -{ - if (HvRc == 0x0302) - return; - printk(KERN_ERR "PCI: %s Failed: 0x%02X.%02X.%02X Rc: 0x%04X", - Error_Text, Bus, SubBus, AgentId, HvRc); -} - -/* - * build_device_node(u16 Bus, int SubBus, u8 DevFn) - */ -static struct iSeries_Device_Node *build_device_node(HvBusNumber Bus, - HvSubBusNumber SubBus, int AgentId, int Function) -{ - struct iSeries_Device_Node *node; - - PPCDBG(PPCDBG_BUSWALK, - "-build_device_node 0x%02X.%02X.%02X Function: %02X\n", - Bus, SubBus, AgentId, Function); - - node = kmalloc(sizeof(struct iSeries_Device_Node), GFP_KERNEL); - if (node == NULL) - return NULL; - - memset(node, 0, sizeof(struct iSeries_Device_Node)); - list_add_tail(&node->Device_List, &iSeries_Global_Device_List); -#if 0 - node->DsaAddr = ((u64)Bus << 48) + ((u64)SubBus << 40) + ((u64)0x10 << 32); -#endif - node->DsaAddr.DsaAddr = 0; - node->DsaAddr.Dsa.busNumber = Bus; - node->DsaAddr.Dsa.subBusNumber = SubBus; - node->DsaAddr.Dsa.deviceId = 0x10; - node->DevFn = PCI_DEVFN(ISERIES_ENCODE_DEVICE(AgentId), Function); - return node; -} - -/* - * unsigned long __init find_and_init_phbs(void) - * - * Description: - * This function checks for all possible system PCI host bridges that connect - * PCI buses. The system hypervisor is queried as to the guest partition - * ownership status. A pci_controller is built for any bus which is partially - * owned or fully owned by this guest partition. - */ -unsigned long __init find_and_init_phbs(void) -{ - struct pci_controller *phb; - HvBusNumber bus; - - PPCDBG(PPCDBG_BUSWALK, "find_and_init_phbs Entry\n"); - - /* Check all possible buses. */ - for (bus = 0; bus < 256; bus++) { - int ret = HvCallXm_testBus(bus); - if (ret == 0) { - printk("bus %d appears to exist\n", bus); - - phb = (struct pci_controller *)kmalloc(sizeof(struct pci_controller), GFP_KERNEL); - if (phb == NULL) - return -ENOMEM; - pci_setup_pci_controller(phb); - - phb->pci_mem_offset = phb->local_number = bus; - phb->first_busno = bus; - phb->last_busno = bus; - phb->ops = &iSeries_pci_ops; - - PPCDBG(PPCDBG_BUSWALK, "PCI:Create iSeries pci_controller(%p), Bus: %04X\n", - phb, bus); - - /* Find and connect the devices. */ - scan_PHB_slots(phb); - } - /* - * Check for Unexpected Return code, a clue that something - * has gone wrong. - */ - else if (ret != 0x0301) - printk(KERN_ERR "Unexpected Return on Probe(0x%04X): 0x%04X", - bus, ret); - } - return 0; -} - -/* - * iSeries_pcibios_init - * - * Chance to initialize and structures or variable before PCI Bus walk. - */ -void iSeries_pcibios_init(void) -{ - PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Entry.\n"); - iomm_table_initialize(); - find_and_init_phbs(); - io_page_mask = -1; - PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Exit.\n"); -} - -/* - * iSeries_pci_final_fixup(void) - */ -void __init iSeries_pci_final_fixup(void) -{ - struct pci_dev *pdev = NULL; - struct iSeries_Device_Node *node; - int DeviceCount = 0; - - PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup Entry.\n"); - - /* Fix up at the device node and pci_dev relationship */ - mf_display_src(0xC9000100); - - printk("pcibios_final_fixup\n"); - for_each_pci_dev(pdev) { - node = find_Device_Node(pdev->bus->number, pdev->devfn); - printk("pci dev %p (%x.%x), node %p\n", pdev, - pdev->bus->number, pdev->devfn, node); - - if (node != NULL) { - ++DeviceCount; - pdev->sysdata = (void *)node; - node->PciDev = pdev; - PPCDBG(PPCDBG_BUSWALK, - "pdev 0x%p <==> DevNode 0x%p\n", - pdev, node); - allocate_device_bars(pdev); - iSeries_Device_Information(pdev, DeviceCount); - iommu_devnode_init_iSeries(node); - } else - printk("PCI: Device Tree not found for 0x%016lX\n", - (unsigned long)pdev); - pdev->irq = node->Irq; - } - iSeries_activate_IRQs(); - mf_display_src(0xC9000200); -} - -void pcibios_fixup_bus(struct pci_bus *PciBus) -{ - PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup_bus(0x%04X) Entry.\n", - PciBus->number); -} - -void pcibios_fixup_resources(struct pci_dev *pdev) -{ - PPCDBG(PPCDBG_BUSWALK, "fixup_resources pdev %p\n", pdev); -} - -/* - * Loop through each node function to find usable EADs bridges. - */ -static void scan_PHB_slots(struct pci_controller *Phb) -{ - struct HvCallPci_DeviceInfo *DevInfo; - HvBusNumber bus = Phb->local_number; /* System Bus */ - const HvSubBusNumber SubBus = 0; /* EADs is always 0. */ - int HvRc = 0; - int IdSel; - const int MaxAgents = 8; - - DevInfo = (struct HvCallPci_DeviceInfo*) - kmalloc(sizeof(struct HvCallPci_DeviceInfo), GFP_KERNEL); - if (DevInfo == NULL) - return; - - /* - * Probe for EADs Bridges - */ - for (IdSel = 1; IdSel < MaxAgents; ++IdSel) { - HvRc = HvCallPci_getDeviceInfo(bus, SubBus, IdSel, - ISERIES_HV_ADDR(DevInfo), - sizeof(struct HvCallPci_DeviceInfo)); - if (HvRc == 0) { - if (DevInfo->deviceType == HvCallPci_NodeDevice) - scan_EADS_bridge(bus, SubBus, IdSel); - else - printk("PCI: Invalid System Configuration(0x%02X)" - " for bus 0x%02x id 0x%02x.\n", - DevInfo->deviceType, bus, IdSel); - } - else - pci_Log_Error("getDeviceInfo", bus, SubBus, IdSel, HvRc); - } - kfree(DevInfo); -} - -static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus, - int IdSel) -{ - struct HvCallPci_BridgeInfo *BridgeInfo; - HvAgentId AgentId; - int Function; - int HvRc; - - BridgeInfo = (struct HvCallPci_BridgeInfo *) - kmalloc(sizeof(struct HvCallPci_BridgeInfo), GFP_KERNEL); - if (BridgeInfo == NULL) - return; - - /* Note: hvSubBus and irq is always be 0 at this level! */ - for (Function = 0; Function < 8; ++Function) { - AgentId = ISERIES_PCI_AGENTID(IdSel, Function); - HvRc = HvCallXm_connectBusUnit(bus, SubBus, AgentId, 0); - if (HvRc == 0) { - printk("found device at bus %d idsel %d func %d (AgentId %x)\n", - bus, IdSel, Function, AgentId); - /* Connect EADs: 0x18.00.12 = 0x00 */ - PPCDBG(PPCDBG_BUSWALK, - "PCI:Connect EADs: 0x%02X.%02X.%02X\n", - bus, SubBus, AgentId); - HvRc = HvCallPci_getBusUnitInfo(bus, SubBus, AgentId, - ISERIES_HV_ADDR(BridgeInfo), - sizeof(struct HvCallPci_BridgeInfo)); - if (HvRc == 0) { - printk("bridge info: type %x subbus %x maxAgents %x maxsubbus %x logslot %x\n", - BridgeInfo->busUnitInfo.deviceType, - BridgeInfo->subBusNumber, - BridgeInfo->maxAgents, - BridgeInfo->maxSubBusNumber, - BridgeInfo->logicalSlotNumber); - PPCDBG(PPCDBG_BUSWALK, - "PCI: BridgeInfo, Type:0x%02X, SubBus:0x%02X, MaxAgents:0x%02X, MaxSubBus: 0x%02X, LSlot: 0x%02X\n", - BridgeInfo->busUnitInfo.deviceType, - BridgeInfo->subBusNumber, - BridgeInfo->maxAgents, - BridgeInfo->maxSubBusNumber, - BridgeInfo->logicalSlotNumber); - - if (BridgeInfo->busUnitInfo.deviceType == - HvCallPci_BridgeDevice) { - /* Scan_Bridge_Slot...: 0x18.00.12 */ - scan_bridge_slot(bus, BridgeInfo); - } else - printk("PCI: Invalid Bridge Configuration(0x%02X)", - BridgeInfo->busUnitInfo.deviceType); - } - } else if (HvRc != 0x000B) - pci_Log_Error("EADs Connect", - bus, SubBus, AgentId, HvRc); - } - kfree(BridgeInfo); -} - -/* - * This assumes that the node slot is always on the primary bus! - */ -static int scan_bridge_slot(HvBusNumber Bus, - struct HvCallPci_BridgeInfo *BridgeInfo) -{ - struct iSeries_Device_Node *node; - HvSubBusNumber SubBus = BridgeInfo->subBusNumber; - u16 VendorId = 0; - int HvRc = 0; - u8 Irq = 0; - int IdSel = ISERIES_GET_DEVICE_FROM_SUBBUS(SubBus); - int Function = ISERIES_GET_FUNCTION_FROM_SUBBUS(SubBus); - HvAgentId EADsIdSel = ISERIES_PCI_AGENTID(IdSel, Function); - - /* iSeries_allocate_IRQ.: 0x18.00.12(0xA3) */ - Irq = iSeries_allocate_IRQ(Bus, 0, EADsIdSel); - PPCDBG(PPCDBG_BUSWALK, - "PCI:- allocate and assign IRQ 0x%02X.%02X.%02X = 0x%02X\n", - Bus, 0, EADsIdSel, Irq); - - /* - * Connect all functions of any device found. - */ - for (IdSel = 1; IdSel <= BridgeInfo->maxAgents; ++IdSel) { - for (Function = 0; Function < 8; ++Function) { - HvAgentId AgentId = ISERIES_PCI_AGENTID(IdSel, Function); - HvRc = HvCallXm_connectBusUnit(Bus, SubBus, - AgentId, Irq); - if (HvRc != 0) { - pci_Log_Error("Connect Bus Unit", - Bus, SubBus, AgentId, HvRc); - continue; - } - - HvRc = HvCallPci_configLoad16(Bus, SubBus, AgentId, - PCI_VENDOR_ID, &VendorId); - if (HvRc != 0) { - pci_Log_Error("Read Vendor", - Bus, SubBus, AgentId, HvRc); - continue; - } - printk("read vendor ID: %x\n", VendorId); - - /* FoundDevice: 0x18.28.10 = 0x12AE */ - PPCDBG(PPCDBG_BUSWALK, - "PCI:- FoundDevice: 0x%02X.%02X.%02X = 0x%04X, irq %d\n", - Bus, SubBus, AgentId, VendorId, Irq); - HvRc = HvCallPci_configStore8(Bus, SubBus, AgentId, - PCI_INTERRUPT_LINE, Irq); - if (HvRc != 0) - pci_Log_Error("PciCfgStore Irq Failed!", - Bus, SubBus, AgentId, HvRc); - - ++DeviceCount; - node = build_device_node(Bus, SubBus, EADsIdSel, Function); - node->Irq = Irq; - node->LogicalSlot = BridgeInfo->logicalSlotNumber; - - } /* for (Function = 0; Function < 8; ++Function) */ - } /* for (IdSel = 1; IdSel <= MaxAgents; ++IdSel) */ - return HvRc; -} - -/* - * I/0 Memory copy MUST use mmio commands on iSeries - * To do; For performance, include the hv call directly - */ -void iSeries_memset_io(volatile void __iomem *dest, char c, size_t Count) -{ - u8 ByteValue = c; - long NumberOfBytes = Count; - - while (NumberOfBytes > 0) { - iSeries_Write_Byte(ByteValue, dest++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memset_io); - -void iSeries_memcpy_toio(volatile void __iomem *dest, void *source, size_t count) -{ - char *src = source; - long NumberOfBytes = count; - - while (NumberOfBytes > 0) { - iSeries_Write_Byte(*src++, dest++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memcpy_toio); - -void iSeries_memcpy_fromio(void *dest, const volatile void __iomem *src, size_t count) -{ - char *dst = dest; - long NumberOfBytes = count; - - while (NumberOfBytes > 0) { - *dst++ = iSeries_Read_Byte(src++); - -- NumberOfBytes; - } -} -EXPORT_SYMBOL(iSeries_memcpy_fromio); - -/* - * Look down the chain to find the matching Device Device - */ -static struct iSeries_Device_Node *find_Device_Node(int bus, int devfn) -{ - struct list_head *pos; - - list_for_each(pos, &iSeries_Global_Device_List) { - struct iSeries_Device_Node *node = - list_entry(pos, struct iSeries_Device_Node, Device_List); - - if ((bus == ISERIES_BUS(node)) && (devfn == node->DevFn)) - return node; - } - return NULL; -} - -#if 0 -/* - * Returns the device node for the passed pci_dev - * Sanity Check Node PciDev to passed pci_dev - * If none is found, returns a NULL which the client must handle. - */ -static struct iSeries_Device_Node *get_Device_Node(struct pci_dev *pdev) -{ - struct iSeries_Device_Node *node; - - node = pdev->sysdata; - if (node == NULL || node->PciDev != pdev) - node = find_Device_Node(pdev->bus->number, pdev->devfn); - return node; -} -#endif - -/* - * Config space read and write functions. - * For now at least, we look for the device node for the bus and devfn - * that we are asked to access. It may be possible to translate the devfn - * to a subbus and deviceid more directly. - */ -static u64 hv_cfg_read_func[4] = { - HvCallPciConfigLoad8, HvCallPciConfigLoad16, - HvCallPciConfigLoad32, HvCallPciConfigLoad32 -}; - -static u64 hv_cfg_write_func[4] = { - HvCallPciConfigStore8, HvCallPciConfigStore16, - HvCallPciConfigStore32, HvCallPciConfigStore32 -}; - -/* - * Read PCI config space - */ -static int iSeries_pci_read_config(struct pci_bus *bus, unsigned int devfn, - int offset, int size, u32 *val) -{ - struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn); - u64 fn; - struct HvCallPci_LoadReturn ret; - - if (node == NULL) - return PCIBIOS_DEVICE_NOT_FOUND; - if (offset > 255) { - *val = ~0; - return PCIBIOS_BAD_REGISTER_NUMBER; - } - - fn = hv_cfg_read_func[(size - 1) & 3]; - HvCall3Ret16(fn, &ret, node->DsaAddr.DsaAddr, offset, 0); - - if (ret.rc != 0) { - *val = ~0; - return PCIBIOS_DEVICE_NOT_FOUND; /* or something */ - } - - *val = ret.value; - return 0; -} - -/* - * Write PCI config space - */ - -static int iSeries_pci_write_config(struct pci_bus *bus, unsigned int devfn, - int offset, int size, u32 val) -{ - struct iSeries_Device_Node *node = find_Device_Node(bus->number, devfn); - u64 fn; - u64 ret; - - if (node == NULL) - return PCIBIOS_DEVICE_NOT_FOUND; - if (offset > 255) - return PCIBIOS_BAD_REGISTER_NUMBER; - - fn = hv_cfg_write_func[(size - 1) & 3]; - ret = HvCall4(fn, node->DsaAddr.DsaAddr, offset, val, 0); - - if (ret != 0) - return PCIBIOS_DEVICE_NOT_FOUND; - - return 0; -} - -static struct pci_ops iSeries_pci_ops = { - .read = iSeries_pci_read_config, - .write = iSeries_pci_write_config -}; - -/* - * Check Return Code - * -> On Failure, print and log information. - * Increment Retry Count, if exceeds max, panic partition. - * - * PCI: Device 23.90 ReadL I/O Error( 0): 0x1234 - * PCI: Device 23.90 ReadL Retry( 1) - * PCI: Device 23.90 ReadL Retry Successful(1) - */ -static int CheckReturnCode(char *TextHdr, struct iSeries_Device_Node *DevNode, - int *retry, u64 ret) -{ - if (ret != 0) { - ++Pci_Error_Count; - (*retry)++; - printk("PCI: %s: Device 0x%04X:%02X I/O Error(%2d): 0x%04X\n", - TextHdr, DevNode->DsaAddr.Dsa.busNumber, DevNode->DevFn, - *retry, (int)ret); - /* - * Bump the retry and check for retry count exceeded. - * If, Exceeded, panic the system. - */ - if (((*retry) > Pci_Retry_Max) && - (Pci_Error_Flag > 0)) { - mf_display_src(0xB6000103); - panic_timeout = 0; - panic("PCI: Hardware I/O Error, SRC B6000103, " - "Automatic Reboot Disabled.\n"); - } - return -1; /* Retry Try */ - } - return 0; -} - -/* - * Translate the I/O Address into a device node, bar, and bar offset. - * Note: Make sure the passed variable end up on the stack to avoid - * the exposure of being device global. - */ -static inline struct iSeries_Device_Node *xlate_iomm_address( - const volatile void __iomem *IoAddress, - u64 *dsaptr, u64 *BarOffsetPtr) -{ - unsigned long OrigIoAddr; - unsigned long BaseIoAddr; - unsigned long TableIndex; - struct iSeries_Device_Node *DevNode; - - OrigIoAddr = (unsigned long __force)IoAddress; - if ((OrigIoAddr < BASE_IO_MEMORY) || (OrigIoAddr >= max_io_memory)) - return NULL; - BaseIoAddr = OrigIoAddr - BASE_IO_MEMORY; - TableIndex = BaseIoAddr / IOMM_TABLE_ENTRY_SIZE; - DevNode = iomm_table[TableIndex]; - - if (DevNode != NULL) { - int barnum = iobar_table[TableIndex]; - *dsaptr = DevNode->DsaAddr.DsaAddr | (barnum << 24); - *BarOffsetPtr = BaseIoAddr % IOMM_TABLE_ENTRY_SIZE; - } else - panic("PCI: Invalid PCI IoAddress detected!\n"); - return DevNode; -} - -/* - * Read MM I/O Instructions for the iSeries - * On MM I/O error, all ones are returned and iSeries_pci_IoError is cal - * else, data is returned in big Endian format. - * - * iSeries_Read_Byte = Read Byte ( 8 bit) - * iSeries_Read_Word = Read Word (16 bit) - * iSeries_Read_Long = Read Long (32 bit) - */ -u8 iSeries_Read_Byte(const volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Read_Byte: invalid access at IO address %p\n", IoAddress); - return 0xff; - } - do { - ++Pci_Io_Read_Count; - HvCall3Ret16(HvCallPciBarLoad8, &ret, dsa, BarOffset, 0); - } while (CheckReturnCode("RDB", DevNode, &retry, ret.rc) != 0); - - return (u8)ret.value; -} -EXPORT_SYMBOL(iSeries_Read_Byte); - -u16 iSeries_Read_Word(const volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Read_Word: invalid access at IO address %p\n", IoAddress); - return 0xffff; - } - do { - ++Pci_Io_Read_Count; - HvCall3Ret16(HvCallPciBarLoad16, &ret, dsa, - BarOffset, 0); - } while (CheckReturnCode("RDW", DevNode, &retry, ret.rc) != 0); - - return swab16((u16)ret.value); -} -EXPORT_SYMBOL(iSeries_Read_Word); - -u32 iSeries_Read_Long(const volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - struct HvCallPci_LoadReturn ret; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Read_Long: invalid access at IO address %p\n", IoAddress); - return 0xffffffff; - } - do { - ++Pci_Io_Read_Count; - HvCall3Ret16(HvCallPciBarLoad32, &ret, dsa, - BarOffset, 0); - } while (CheckReturnCode("RDL", DevNode, &retry, ret.rc) != 0); - - return swab32((u32)ret.value); -} -EXPORT_SYMBOL(iSeries_Read_Long); - -/* - * Write MM I/O Instructions for the iSeries - * - * iSeries_Write_Byte = Write Byte (8 bit) - * iSeries_Write_Word = Write Word(16 bit) - * iSeries_Write_Long = Write Long(32 bit) - */ -void iSeries_Write_Byte(u8 data, volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - u64 rc; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Write_Byte: invalid access at IO address %p\n", IoAddress); - return; - } - do { - ++Pci_Io_Write_Count; - rc = HvCall4(HvCallPciBarStore8, dsa, BarOffset, data, 0); - } while (CheckReturnCode("WWB", DevNode, &retry, rc) != 0); -} -EXPORT_SYMBOL(iSeries_Write_Byte); - -void iSeries_Write_Word(u16 data, volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - u64 rc; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Write_Word: invalid access at IO address %p\n", IoAddress); - return; - } - do { - ++Pci_Io_Write_Count; - rc = HvCall4(HvCallPciBarStore16, dsa, BarOffset, swab16(data), 0); - } while (CheckReturnCode("WWW", DevNode, &retry, rc) != 0); -} -EXPORT_SYMBOL(iSeries_Write_Word); - -void iSeries_Write_Long(u32 data, volatile void __iomem *IoAddress) -{ - u64 BarOffset; - u64 dsa; - int retry = 0; - u64 rc; - struct iSeries_Device_Node *DevNode = - xlate_iomm_address(IoAddress, &dsa, &BarOffset); - - if (DevNode == NULL) { - static unsigned long last_jiffies; - static int num_printed; - - if ((jiffies - last_jiffies) > 60 * HZ) { - last_jiffies = jiffies; - num_printed = 0; - } - if (num_printed++ < 10) - printk(KERN_ERR "iSeries_Write_Long: invalid access at IO address %p\n", IoAddress); - return; - } - do { - ++Pci_Io_Write_Count; - rc = HvCall4(HvCallPciBarStore32, dsa, BarOffset, swab32(data), 0); - } while (CheckReturnCode("WWL", DevNode, &retry, rc) != 0); -} -EXPORT_SYMBOL(iSeries_Write_Long); diff --git a/arch/ppc64/kernel/iSeries_proc.c b/arch/ppc64/kernel/iSeries_proc.c deleted file mode 100644 index 0fe3116eba2..00000000000 --- a/arch/ppc64/kernel/iSeries_proc.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * iSeries_proc.c - * Copyright (C) 2001 Kyle A. Lucke IBM Corporation - * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen 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. - * - * 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/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/param.h> /* for HZ */ -#include <asm/paca.h> -#include <asm/processor.h> -#include <asm/time.h> -#include <asm/lppaca.h> -#include <asm/iSeries/ItLpQueue.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/IoHriMainStore.h> -#include <asm/iSeries/IoHriProcessorVpd.h> - -static int __init iseries_proc_create(void) -{ - struct proc_dir_entry *e = proc_mkdir("iSeries", 0); - if (!e) - return 1; - - return 0; -} -core_initcall(iseries_proc_create); - -static unsigned long startTitan = 0; -static unsigned long startTb = 0; - -static int proc_titantod_show(struct seq_file *m, void *v) -{ - unsigned long tb0, titan_tod; - - tb0 = get_tb(); - titan_tod = HvCallXm_loadTod(); - - seq_printf(m, "Titan\n" ); - seq_printf(m, " time base = %016lx\n", tb0); - seq_printf(m, " titan tod = %016lx\n", titan_tod); - seq_printf(m, " xProcFreq = %016x\n", - xIoHriProcessorVpd[0].xProcFreq); - seq_printf(m, " xTimeBaseFreq = %016x\n", - xIoHriProcessorVpd[0].xTimeBaseFreq); - seq_printf(m, " tb_ticks_per_jiffy = %lu\n", tb_ticks_per_jiffy); - seq_printf(m, " tb_ticks_per_usec = %lu\n", tb_ticks_per_usec); - - if (!startTitan) { - startTitan = titan_tod; - startTb = tb0; - } else { - unsigned long titan_usec = (titan_tod - startTitan) >> 12; - unsigned long tb_ticks = (tb0 - startTb); - unsigned long titan_jiffies = titan_usec / (1000000/HZ); - unsigned long titan_jiff_usec = titan_jiffies * (1000000/HZ); - unsigned long titan_jiff_rem_usec = titan_usec - titan_jiff_usec; - unsigned long tb_jiffies = tb_ticks / tb_ticks_per_jiffy; - unsigned long tb_jiff_ticks = tb_jiffies * tb_ticks_per_jiffy; - unsigned long tb_jiff_rem_ticks = tb_ticks - tb_jiff_ticks; - unsigned long tb_jiff_rem_usec = tb_jiff_rem_ticks / tb_ticks_per_usec; - unsigned long new_tb_ticks_per_jiffy = (tb_ticks * (1000000/HZ))/titan_usec; - - seq_printf(m, " titan elapsed = %lu uSec\n", titan_usec); - seq_printf(m, " tb elapsed = %lu ticks\n", tb_ticks); - seq_printf(m, " titan jiffies = %lu.%04lu \n", titan_jiffies, - titan_jiff_rem_usec); - seq_printf(m, " tb jiffies = %lu.%04lu\n", tb_jiffies, - tb_jiff_rem_usec); - seq_printf(m, " new tb_ticks_per_jiffy = %lu\n", - new_tb_ticks_per_jiffy); - } - - return 0; -} - -static int proc_titantod_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_titantod_show, NULL); -} - -static struct file_operations proc_titantod_operations = { - .open = proc_titantod_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init iseries_proc_init(void) -{ - struct proc_dir_entry *e; - - e = create_proc_entry("iSeries/titanTod", S_IFREG|S_IRUGO, NULL); - if (e) - e->proc_fops = &proc_titantod_operations; - - return 0; -} -__initcall(iseries_proc_init); diff --git a/arch/ppc64/kernel/iSeries_setup.c b/arch/ppc64/kernel/iSeries_setup.c deleted file mode 100644 index 9daf734adbd..00000000000 --- a/arch/ppc64/kernel/iSeries_setup.c +++ /dev/null @@ -1,1007 +0,0 @@ -/* - * Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com> - * Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * Module name: iSeries_setup.c - * - * Description: - * Architecture- / platform-specific boot-time initialization code for - * the IBM iSeries LPAR. Adapted from original code by Grant Erickson and - * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek - * <dan@net4x.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. - */ - -#undef DEBUG - -#include <linux/config.h> -#include <linux/init.h> -#include <linux/threads.h> -#include <linux/smp.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/initrd.h> -#include <linux/seq_file.h> -#include <linux/kdev_t.h> -#include <linux/major.h> -#include <linux/root_dev.h> - -#include <asm/processor.h> -#include <asm/machdep.h> -#include <asm/page.h> -#include <asm/mmu.h> -#include <asm/pgtable.h> -#include <asm/mmu_context.h> -#include <asm/cputable.h> -#include <asm/sections.h> -#include <asm/iommu.h> -#include <asm/firmware.h> - -#include <asm/time.h> -#include "iSeries_setup.h" -#include <asm/naca.h> -#include <asm/paca.h> -#include <asm/cache.h> -#include <asm/sections.h> -#include <asm/abs_addr.h> -#include <asm/iSeries/HvCallHpt.h> -#include <asm/iSeries/HvLpConfig.h> -#include <asm/iSeries/HvCallEvent.h> -#include <asm/iSeries/HvCallSm.h> -#include <asm/iSeries/HvCallXm.h> -#include <asm/iSeries/ItLpQueue.h> -#include <asm/iSeries/IoHriMainStore.h> -#include <asm/iSeries/mf.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/iSeries_irq.h> -#include <asm/iSeries/IoHriProcessorVpd.h> -#include <asm/iSeries/ItVpdAreas.h> -#include <asm/iSeries/LparMap.h> - -extern void hvlog(char *fmt, ...); - -#ifdef DEBUG -#define DBG(fmt...) hvlog(fmt) -#else -#define DBG(fmt...) -#endif - -/* Function Prototypes */ -extern void ppcdbg_initialize(void); - -static void build_iSeries_Memory_Map(void); -static int iseries_shared_idle(void); -static int iseries_dedicated_idle(void); -#ifdef CONFIG_PCI -extern void iSeries_pci_final_fixup(void); -#else -static void iSeries_pci_final_fixup(void) { } -#endif - -/* Global Variables */ -int piranha_simulator; - -extern int rd_size; /* Defined in drivers/block/rd.c */ -extern unsigned long klimit; -extern unsigned long embedded_sysmap_start; -extern unsigned long embedded_sysmap_end; - -extern unsigned long iSeries_recal_tb; -extern unsigned long iSeries_recal_titan; - -static int mf_initialized; - -struct MemoryBlock { - unsigned long absStart; - unsigned long absEnd; - unsigned long logicalStart; - unsigned long logicalEnd; -}; - -/* - * Process the main store vpd to determine where the holes in memory are - * and return the number of physical blocks and fill in the array of - * block data. - */ -static unsigned long iSeries_process_Condor_mainstore_vpd( - struct MemoryBlock *mb_array, unsigned long max_entries) -{ - unsigned long holeFirstChunk, holeSizeChunks; - unsigned long numMemoryBlocks = 1; - struct IoHriMainStoreSegment4 *msVpd = - (struct IoHriMainStoreSegment4 *)xMsVpd; - unsigned long holeStart = msVpd->nonInterleavedBlocksStartAdr; - unsigned long holeEnd = msVpd->nonInterleavedBlocksEndAdr; - unsigned long holeSize = holeEnd - holeStart; - - printk("Mainstore_VPD: Condor\n"); - /* - * Determine if absolute memory has any - * holes so that we can interpret the - * access map we get back from the hypervisor - * correctly. - */ - mb_array[0].logicalStart = 0; - mb_array[0].logicalEnd = 0x100000000; - mb_array[0].absStart = 0; - mb_array[0].absEnd = 0x100000000; - - if (holeSize) { - numMemoryBlocks = 2; - holeStart = holeStart & 0x000fffffffffffff; - holeStart = addr_to_chunk(holeStart); - holeFirstChunk = holeStart; - holeSize = addr_to_chunk(holeSize); - holeSizeChunks = holeSize; - printk( "Main store hole: start chunk = %0lx, size = %0lx chunks\n", - holeFirstChunk, holeSizeChunks ); - mb_array[0].logicalEnd = holeFirstChunk; - mb_array[0].absEnd = holeFirstChunk; - mb_array[1].logicalStart = holeFirstChunk; - mb_array[1].logicalEnd = 0x100000000 - holeSizeChunks; - mb_array[1].absStart = holeFirstChunk + holeSizeChunks; - mb_array[1].absEnd = 0x100000000; - } - return numMemoryBlocks; -} - -#define MaxSegmentAreas 32 -#define MaxSegmentAdrRangeBlocks 128 -#define MaxAreaRangeBlocks 4 - -static unsigned long iSeries_process_Regatta_mainstore_vpd( - struct MemoryBlock *mb_array, unsigned long max_entries) -{ - struct IoHriMainStoreSegment5 *msVpdP = - (struct IoHriMainStoreSegment5 *)xMsVpd; - unsigned long numSegmentBlocks = 0; - u32 existsBits = msVpdP->msAreaExists; - unsigned long area_num; - - printk("Mainstore_VPD: Regatta\n"); - - for (area_num = 0; area_num < MaxSegmentAreas; ++area_num ) { - unsigned long numAreaBlocks; - struct IoHriMainStoreArea4 *currentArea; - - if (existsBits & 0x80000000) { - unsigned long block_num; - - currentArea = &msVpdP->msAreaArray[area_num]; - numAreaBlocks = currentArea->numAdrRangeBlocks; - printk("ms_vpd: processing area %2ld blocks=%ld", - area_num, numAreaBlocks); - for (block_num = 0; block_num < numAreaBlocks; - ++block_num ) { - /* Process an address range block */ - struct MemoryBlock tempBlock; - unsigned long i; - - tempBlock.absStart = - (unsigned long)currentArea->xAdrRangeBlock[block_num].blockStart; - tempBlock.absEnd = - (unsigned long)currentArea->xAdrRangeBlock[block_num].blockEnd; - tempBlock.logicalStart = 0; - tempBlock.logicalEnd = 0; - printk("\n block %ld absStart=%016lx absEnd=%016lx", - block_num, tempBlock.absStart, - tempBlock.absEnd); - - for (i = 0; i < numSegmentBlocks; ++i) { - if (mb_array[i].absStart == - tempBlock.absStart) - break; - } - if (i == numSegmentBlocks) { - if (numSegmentBlocks == max_entries) - panic("iSeries_process_mainstore_vpd: too many memory blocks"); - mb_array[numSegmentBlocks] = tempBlock; - ++numSegmentBlocks; - } else - printk(" (duplicate)"); - } - printk("\n"); - } - existsBits <<= 1; - } - /* Now sort the blocks found into ascending sequence */ - if (numSegmentBlocks > 1) { - unsigned long m, n; - - for (m = 0; m < numSegmentBlocks - 1; ++m) { - for (n = numSegmentBlocks - 1; m < n; --n) { - if (mb_array[n].absStart < - mb_array[n-1].absStart) { - struct MemoryBlock tempBlock; - - tempBlock = mb_array[n]; - mb_array[n] = mb_array[n-1]; - mb_array[n-1] = tempBlock; - } - } - } - } - /* - * Assign "logical" addresses to each block. These - * addresses correspond to the hypervisor "bitmap" space. - * Convert all addresses into units of 256K chunks. - */ - { - unsigned long i, nextBitmapAddress; - - printk("ms_vpd: %ld sorted memory blocks\n", numSegmentBlocks); - nextBitmapAddress = 0; - for (i = 0; i < numSegmentBlocks; ++i) { - unsigned long length = mb_array[i].absEnd - - mb_array[i].absStart; - - mb_array[i].logicalStart = nextBitmapAddress; - mb_array[i].logicalEnd = nextBitmapAddress + length; - nextBitmapAddress += length; - printk(" Bitmap range: %016lx - %016lx\n" - " Absolute range: %016lx - %016lx\n", - mb_array[i].logicalStart, - mb_array[i].logicalEnd, - mb_array[i].absStart, mb_array[i].absEnd); - mb_array[i].absStart = addr_to_chunk(mb_array[i].absStart & - 0x000fffffffffffff); - mb_array[i].absEnd = addr_to_chunk(mb_array[i].absEnd & - 0x000fffffffffffff); - mb_array[i].logicalStart = - addr_to_chunk(mb_array[i].logicalStart); - mb_array[i].logicalEnd = addr_to_chunk(mb_array[i].logicalEnd); - } - } - - return numSegmentBlocks; -} - -static unsigned long iSeries_process_mainstore_vpd(struct MemoryBlock *mb_array, - unsigned long max_entries) -{ - unsigned long i; - unsigned long mem_blocks = 0; - - if (cpu_has_feature(CPU_FTR_SLB)) - mem_blocks = iSeries_process_Regatta_mainstore_vpd(mb_array, - max_entries); - else - mem_blocks = iSeries_process_Condor_mainstore_vpd(mb_array, - max_entries); - - printk("Mainstore_VPD: numMemoryBlocks = %ld \n", mem_blocks); - for (i = 0; i < mem_blocks; ++i) { - printk("Mainstore_VPD: block %3ld logical chunks %016lx - %016lx\n" - " abs chunks %016lx - %016lx\n", - i, mb_array[i].logicalStart, mb_array[i].logicalEnd, - mb_array[i].absStart, mb_array[i].absEnd); - } - return mem_blocks; -} - -static void __init iSeries_get_cmdline(void) -{ - char *p, *q; - - /* copy the command line parameter from the primary VSP */ - HvCallEvent_dmaToSp(cmd_line, 2 * 64* 1024, 256, - HvLpDma_Direction_RemoteToLocal); - - p = cmd_line; - q = cmd_line + 255; - while(p < q) { - if (!*p || *p == '\n') - break; - ++p; - } - *p = 0; -} - -static void __init iSeries_init_early(void) -{ - extern unsigned long memory_limit; - - DBG(" -> iSeries_init_early()\n"); - - ppc64_firmware_features = FW_FEATURE_ISERIES; - - ppcdbg_initialize(); - - ppc64_interrupt_controller = IC_ISERIES; - -#if defined(CONFIG_BLK_DEV_INITRD) - /* - * If the init RAM disk has been configured and there is - * a non-zero starting address for it, set it up - */ - if (naca.xRamDisk) { - initrd_start = (unsigned long)__va(naca.xRamDisk); - initrd_end = initrd_start + naca.xRamDiskSize * PAGE_SIZE; - initrd_below_start_ok = 1; // ramdisk in kernel space - ROOT_DEV = Root_RAM0; - if (((rd_size * 1024) / PAGE_SIZE) < naca.xRamDiskSize) - rd_size = (naca.xRamDiskSize * PAGE_SIZE) / 1024; - } else -#endif /* CONFIG_BLK_DEV_INITRD */ - { - /* ROOT_DEV = MKDEV(VIODASD_MAJOR, 1); */ - } - - iSeries_recal_tb = get_tb(); - iSeries_recal_titan = HvCallXm_loadTod(); - - /* - * Initialize the hash table management pointers - */ - hpte_init_iSeries(); - - /* - * Initialize the DMA/TCE management - */ - iommu_init_early_iSeries(); - - iSeries_get_cmdline(); - - /* Save unparsed command line copy for /proc/cmdline */ - strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE); - - /* Parse early parameters, in particular mem=x */ - parse_early_param(); - - if (memory_limit) { - if (memory_limit < systemcfg->physicalMemorySize) - systemcfg->physicalMemorySize = memory_limit; - else { - printk("Ignoring mem=%lu >= ram_top.\n", memory_limit); - memory_limit = 0; - } - } - - /* Initialize machine-dependency vectors */ -#ifdef CONFIG_SMP - smp_init_iSeries(); -#endif - if (itLpNaca.xPirEnvironMode == 0) - piranha_simulator = 1; - - /* Associate Lp Event Queue 0 with processor 0 */ - HvCallEvent_setLpEventQueueInterruptProc(0, 0); - - mf_init(); - mf_initialized = 1; - mb(); - - /* If we were passed an initrd, set the ROOT_DEV properly if the values - * look sensible. If not, clear initrd reference. - */ -#ifdef CONFIG_BLK_DEV_INITRD - if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE && - initrd_end > initrd_start) - ROOT_DEV = Root_RAM0; - else - initrd_start = initrd_end = 0; -#endif /* CONFIG_BLK_DEV_INITRD */ - - DBG(" <- iSeries_init_early()\n"); -} - -struct mschunks_map mschunks_map = { - /* XXX We don't use these, but Piranha might need them. */ - .chunk_size = MSCHUNKS_CHUNK_SIZE, - .chunk_shift = MSCHUNKS_CHUNK_SHIFT, - .chunk_mask = MSCHUNKS_OFFSET_MASK, -}; -EXPORT_SYMBOL(mschunks_map); - -void mschunks_alloc(unsigned long num_chunks) -{ - klimit = _ALIGN(klimit, sizeof(u32)); - mschunks_map.mapping = (u32 *)klimit; - klimit += num_chunks * sizeof(u32); - mschunks_map.num_chunks = num_chunks; -} - -/* - * The iSeries may have very large memories ( > 128 GB ) and a partition - * may get memory in "chunks" that may be anywhere in the 2**52 real - * address space. The chunks are 256K in size. To map this to the - * memory model Linux expects, the AS/400 specific code builds a - * translation table to translate what Linux thinks are "physical" - * addresses to the actual real addresses. This allows us to make - * it appear to Linux that we have contiguous memory starting at - * physical address zero while in fact this could be far from the truth. - * To avoid confusion, I'll let the words physical and/or real address - * apply to the Linux addresses while I'll use "absolute address" to - * refer to the actual hardware real address. - * - * build_iSeries_Memory_Map gets information from the Hypervisor and - * looks at the Main Store VPD to determine the absolute addresses - * of the memory that has been assigned to our partition and builds - * a table used to translate Linux's physical addresses to these - * absolute addresses. Absolute addresses are needed when - * communicating with the hypervisor (e.g. to build HPT entries) - */ - -static void __init build_iSeries_Memory_Map(void) -{ - u32 loadAreaFirstChunk, loadAreaLastChunk, loadAreaSize; - u32 nextPhysChunk; - u32 hptFirstChunk, hptLastChunk, hptSizeChunks, hptSizePages; - u32 num_ptegs; - u32 totalChunks,moreChunks; - u32 currChunk, thisChunk, absChunk; - u32 currDword; - u32 chunkBit; - u64 map; - struct MemoryBlock mb[32]; - unsigned long numMemoryBlocks, curBlock; - - /* Chunk size on iSeries is 256K bytes */ - totalChunks = (u32)HvLpConfig_getMsChunks(); - mschunks_alloc(totalChunks); - - /* - * Get absolute address of our load area - * and map it to physical address 0 - * This guarantees that the loadarea ends up at physical 0 - * otherwise, it might not be returned by PLIC as the first - * chunks - */ - - loadAreaFirstChunk = (u32)addr_to_chunk(itLpNaca.xLoadAreaAddr); - loadAreaSize = itLpNaca.xLoadAreaChunks; - - /* - * Only add the pages already mapped here. - * Otherwise we might add the hpt pages - * The rest of the pages of the load area - * aren't in the HPT yet and can still - * be assigned an arbitrary physical address - */ - if ((loadAreaSize * 64) > HvPagesToMap) - loadAreaSize = HvPagesToMap / 64; - - loadAreaLastChunk = loadAreaFirstChunk + loadAreaSize - 1; - - /* - * TODO Do we need to do something if the HPT is in the 64MB load area? - * This would be required if the itLpNaca.xLoadAreaChunks includes - * the HPT size - */ - - printk("Mapping load area - physical addr = 0000000000000000\n" - " absolute addr = %016lx\n", - chunk_to_addr(loadAreaFirstChunk)); - printk("Load area size %dK\n", loadAreaSize * 256); - - for (nextPhysChunk = 0; nextPhysChunk < loadAreaSize; ++nextPhysChunk) - mschunks_map.mapping[nextPhysChunk] = - loadAreaFirstChunk + nextPhysChunk; - - /* - * Get absolute address of our HPT and remember it so - * we won't map it to any physical address - */ - hptFirstChunk = (u32)addr_to_chunk(HvCallHpt_getHptAddress()); - hptSizePages = (u32)HvCallHpt_getHptPages(); - hptSizeChunks = hptSizePages >> (MSCHUNKS_CHUNK_SHIFT - PAGE_SHIFT); - hptLastChunk = hptFirstChunk + hptSizeChunks - 1; - - printk("HPT absolute addr = %016lx, size = %dK\n", - chunk_to_addr(hptFirstChunk), hptSizeChunks * 256); - - /* Fill in the hashed page table hash mask */ - num_ptegs = hptSizePages * - (PAGE_SIZE / (sizeof(hpte_t) * HPTES_PER_GROUP)); - htab_hash_mask = num_ptegs - 1; - - /* - * The actual hashed page table is in the hypervisor, - * we have no direct access - */ - htab_address = NULL; - - /* - * Determine if absolute memory has any - * holes so that we can interpret the - * access map we get back from the hypervisor - * correctly. - */ - numMemoryBlocks = iSeries_process_mainstore_vpd(mb, 32); - - /* - * Process the main store access map from the hypervisor - * to build up our physical -> absolute translation table - */ - curBlock = 0; - currChunk = 0; - currDword = 0; - moreChunks = totalChunks; - - while (moreChunks) { - map = HvCallSm_get64BitsOfAccessMap(itLpNaca.xLpIndex, - currDword); - thisChunk = currChunk; - while (map) { - chunkBit = map >> 63; - map <<= 1; - if (chunkBit) { - --moreChunks; - while (thisChunk >= mb[curBlock].logicalEnd) { - ++curBlock; - if (curBlock >= numMemoryBlocks) - panic("out of memory blocks"); - } - if (thisChunk < mb[curBlock].logicalStart) - panic("memory block error"); - - absChunk = mb[curBlock].absStart + - (thisChunk - mb[curBlock].logicalStart); - if (((absChunk < hptFirstChunk) || - (absChunk > hptLastChunk)) && - ((absChunk < loadAreaFirstChunk) || - (absChunk > loadAreaLastChunk))) { - mschunks_map.mapping[nextPhysChunk] = - absChunk; - ++nextPhysChunk; - } - } - ++thisChunk; - } - ++currDword; - currChunk += 64; - } - - /* - * main store size (in chunks) is - * totalChunks - hptSizeChunks - * which should be equal to - * nextPhysChunk - */ - systemcfg->physicalMemorySize = chunk_to_addr(nextPhysChunk); -} - -/* - * Document me. - */ -static void __init iSeries_setup_arch(void) -{ - unsigned procIx = get_paca()->lppaca.dyn_hv_phys_proc_index; - - if (get_paca()->lppaca.shared_proc) { - ppc_md.idle_loop = iseries_shared_idle; - printk(KERN_INFO "Using shared processor idle loop\n"); - } else { - ppc_md.idle_loop = iseries_dedicated_idle; - printk(KERN_INFO "Using dedicated idle loop\n"); - } - - /* Setup the Lp Event Queue */ - setup_hvlpevent_queue(); - - printk("Max logical processors = %d\n", - itVpdAreas.xSlicMaxLogicalProcs); - printk("Max physical processors = %d\n", - itVpdAreas.xSlicMaxPhysicalProcs); - - systemcfg->processor = xIoHriProcessorVpd[procIx].xPVR; - printk("Processor version = %x\n", systemcfg->processor); -} - -static void iSeries_get_cpuinfo(struct seq_file *m) -{ - seq_printf(m, "machine\t\t: 64-bit iSeries Logical Partition\n"); -} - -/* - * Document me. - * and Implement me. - */ -static int iSeries_get_irq(struct pt_regs *regs) -{ - /* -2 means ignore this interrupt */ - return -2; -} - -/* - * Document me. - */ -static void iSeries_restart(char *cmd) -{ - mf_reboot(); -} - -/* - * Document me. - */ -static void iSeries_power_off(void) -{ - mf_power_off(); -} - -/* - * Document me. - */ -static void iSeries_halt(void) -{ - mf_power_off(); -} - -static void __init iSeries_progress(char * st, unsigned short code) -{ - printk("Progress: [%04x] - %s\n", (unsigned)code, st); - if (!piranha_simulator && mf_initialized) { - if (code != 0xffff) - mf_display_progress(code); - else - mf_clear_src(); - } -} - -static void __init iSeries_fixup_klimit(void) -{ - /* - * Change klimit to take into account any ram disk - * that may be included - */ - if (naca.xRamDisk) - klimit = KERNELBASE + (u64)naca.xRamDisk + - (naca.xRamDiskSize * PAGE_SIZE); - else { - /* - * No ram disk was included - check and see if there - * was an embedded system map. Change klimit to take - * into account any embedded system map - */ - if (embedded_sysmap_end) - klimit = KERNELBASE + ((embedded_sysmap_end + 4095) & - 0xfffffffffffff000); - } -} - -static int __init iSeries_src_init(void) -{ - /* clear the progress line */ - ppc_md.progress(" ", 0xffff); - return 0; -} - -late_initcall(iSeries_src_init); - -static inline void process_iSeries_events(void) -{ - asm volatile ("li 0,0x5555; sc" : : : "r0", "r3"); -} - -static void yield_shared_processor(void) -{ - unsigned long tb; - - HvCall_setEnabledInterrupts(HvCall_MaskIPI | - HvCall_MaskLpEvent | - HvCall_MaskLpProd | - HvCall_MaskTimeout); - - tb = get_tb(); - /* Compute future tb value when yield should expire */ - HvCall_yieldProcessor(HvCall_YieldTimed, tb+tb_ticks_per_jiffy); - - /* - * The decrementer stops during the yield. Force a fake decrementer - * here and let the timer_interrupt code sort out the actual time. - */ - get_paca()->lppaca.int_dword.fields.decr_int = 1; - process_iSeries_events(); -} - -static int iseries_shared_idle(void) -{ - while (1) { - while (!need_resched() && !hvlpevent_is_pending()) { - local_irq_disable(); - ppc64_runlatch_off(); - - /* Recheck with irqs off */ - if (!need_resched() && !hvlpevent_is_pending()) - yield_shared_processor(); - - HMT_medium(); - local_irq_enable(); - } - - ppc64_runlatch_on(); - - if (hvlpevent_is_pending()) - process_iSeries_events(); - - schedule(); - } - - return 0; -} - -static int iseries_dedicated_idle(void) -{ - long oldval; - - while (1) { - oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED); - - if (!oldval) { - set_thread_flag(TIF_POLLING_NRFLAG); - - while (!need_resched()) { - ppc64_runlatch_off(); - HMT_low(); - - if (hvlpevent_is_pending()) { - HMT_medium(); - ppc64_runlatch_on(); - process_iSeries_events(); - } - } - - HMT_medium(); - clear_thread_flag(TIF_POLLING_NRFLAG); - } else { - set_need_resched(); - } - - ppc64_runlatch_on(); - schedule(); - } - - return 0; -} - -#ifndef CONFIG_PCI -void __init iSeries_init_IRQ(void) { } -#endif - -static int __init iseries_probe(int platform) -{ - return PLATFORM_ISERIES_LPAR == platform; -} - -struct machdep_calls __initdata iseries_md = { - .setup_arch = iSeries_setup_arch, - .get_cpuinfo = iSeries_get_cpuinfo, - .init_IRQ = iSeries_init_IRQ, - .get_irq = iSeries_get_irq, - .init_early = iSeries_init_early, - .pcibios_fixup = iSeries_pci_final_fixup, - .restart = iSeries_restart, - .power_off = iSeries_power_off, - .halt = iSeries_halt, - .get_boot_time = iSeries_get_boot_time, - .set_rtc_time = iSeries_set_rtc_time, - .get_rtc_time = iSeries_get_rtc_time, - .calibrate_decr = generic_calibrate_decr, - .progress = iSeries_progress, - .probe = iseries_probe, - /* XXX Implement enable_pmcs for iSeries */ -}; - -struct blob { - unsigned char data[PAGE_SIZE]; - unsigned long next; -}; - -struct iseries_flat_dt { - struct boot_param_header header; - u64 reserve_map[2]; - struct blob dt; - struct blob strings; -}; - -struct iseries_flat_dt iseries_dt; - -void dt_init(struct iseries_flat_dt *dt) -{ - dt->header.off_mem_rsvmap = - offsetof(struct iseries_flat_dt, reserve_map); - dt->header.off_dt_struct = offsetof(struct iseries_flat_dt, dt); - dt->header.off_dt_strings = offsetof(struct iseries_flat_dt, strings); - dt->header.totalsize = sizeof(struct iseries_flat_dt); - dt->header.dt_strings_size = sizeof(struct blob); - - /* There is no notion of hardware cpu id on iSeries */ - dt->header.boot_cpuid_phys = smp_processor_id(); - - dt->dt.next = (unsigned long)&dt->dt.data; - dt->strings.next = (unsigned long)&dt->strings.data; - - dt->header.magic = OF_DT_HEADER; - dt->header.version = 0x10; - dt->header.last_comp_version = 0x10; - - dt->reserve_map[0] = 0; - dt->reserve_map[1] = 0; -} - -void dt_check_blob(struct blob *b) -{ - if (b->next >= (unsigned long)&b->next) { - DBG("Ran out of space in flat device tree blob!\n"); - BUG(); - } -} - -void dt_push_u32(struct iseries_flat_dt *dt, u32 value) -{ - *((u32*)dt->dt.next) = value; - dt->dt.next += sizeof(u32); - - dt_check_blob(&dt->dt); -} - -void dt_push_u64(struct iseries_flat_dt *dt, u64 value) -{ - *((u64*)dt->dt.next) = value; - dt->dt.next += sizeof(u64); - - dt_check_blob(&dt->dt); -} - -unsigned long dt_push_bytes(struct blob *blob, char *data, int len) -{ - unsigned long start = blob->next - (unsigned long)blob->data; - - memcpy((char *)blob->next, data, len); - blob->next = _ALIGN(blob->next + len, 4); - - dt_check_blob(blob); - - return start; -} - -void dt_start_node(struct iseries_flat_dt *dt, char *name) -{ - dt_push_u32(dt, OF_DT_BEGIN_NODE); - dt_push_bytes(&dt->dt, name, strlen(name) + 1); -} - -#define dt_end_node(dt) dt_push_u32(dt, OF_DT_END_NODE) - -void dt_prop(struct iseries_flat_dt *dt, char *name, char *data, int len) -{ - unsigned long offset; - - dt_push_u32(dt, OF_DT_PROP); - - /* Length of the data */ - dt_push_u32(dt, len); - - /* Put the property name in the string blob. */ - offset = dt_push_bytes(&dt->strings, name, strlen(name) + 1); - - /* The offset of the properties name in the string blob. */ - dt_push_u32(dt, (u32)offset); - - /* The actual data. */ - dt_push_bytes(&dt->dt, data, len); -} - -void dt_prop_str(struct iseries_flat_dt *dt, char *name, char *data) -{ - dt_prop(dt, name, data, strlen(data) + 1); /* + 1 for NULL */ -} - -void dt_prop_u32(struct iseries_flat_dt *dt, char *name, u32 data) -{ - dt_prop(dt, name, (char *)&data, sizeof(u32)); -} - -void dt_prop_u64(struct iseries_flat_dt *dt, char *name, u64 data) -{ - dt_prop(dt, name, (char *)&data, sizeof(u64)); -} - -void dt_prop_u64_list(struct iseries_flat_dt *dt, char *name, u64 *data, int n) -{ - dt_prop(dt, name, (char *)data, sizeof(u64) * n); -} - -void dt_prop_empty(struct iseries_flat_dt *dt, char *name) -{ - dt_prop(dt, name, NULL, 0); -} - -void dt_cpus(struct iseries_flat_dt *dt) -{ - unsigned char buf[32]; - unsigned char *p; - unsigned int i, index; - struct IoHriProcessorVpd *d; - - /* yuck */ - snprintf(buf, 32, "PowerPC,%s", cur_cpu_spec->cpu_name); - p = strchr(buf, ' '); - if (!p) p = buf + strlen(buf); - - dt_start_node(dt, "cpus"); - dt_prop_u32(dt, "#address-cells", 1); - dt_prop_u32(dt, "#size-cells", 0); - - for (i = 0; i < NR_CPUS; i++) { - if (paca[i].lppaca.dyn_proc_status >= 2) - continue; - - snprintf(p, 32 - (p - buf), "@%d", i); - dt_start_node(dt, buf); - - dt_prop_str(dt, "device_type", "cpu"); - - index = paca[i].lppaca.dyn_hv_phys_proc_index; - d = &xIoHriProcessorVpd[index]; - - dt_prop_u32(dt, "i-cache-size", d->xInstCacheSize * 1024); - dt_prop_u32(dt, "i-cache-line-size", d->xInstCacheOperandSize); - - dt_prop_u32(dt, "d-cache-size", d->xDataL1CacheSizeKB * 1024); - dt_prop_u32(dt, "d-cache-line-size", d->xDataCacheOperandSize); - - /* magic conversions to Hz copied from old code */ - dt_prop_u32(dt, "clock-frequency", - ((1UL << 34) * 1000000) / d->xProcFreq); - dt_prop_u32(dt, "timebase-frequency", - ((1UL << 32) * 1000000) / d->xTimeBaseFreq); - - dt_prop_u32(dt, "reg", i); - - dt_end_node(dt); - } - - dt_end_node(dt); -} - -void build_flat_dt(struct iseries_flat_dt *dt) -{ - u64 tmp[2]; - - dt_init(dt); - - dt_start_node(dt, ""); - - dt_prop_u32(dt, "#address-cells", 2); - dt_prop_u32(dt, "#size-cells", 2); - - /* /memory */ - dt_start_node(dt, "memory@0"); - dt_prop_str(dt, "name", "memory"); - dt_prop_str(dt, "device_type", "memory"); - tmp[0] = 0; - tmp[1] = systemcfg->physicalMemorySize; - dt_prop_u64_list(dt, "reg", tmp, 2); - dt_end_node(dt); - - /* /chosen */ - dt_start_node(dt, "chosen"); - dt_prop_u32(dt, "linux,platform", PLATFORM_ISERIES_LPAR); - dt_end_node(dt); - - dt_cpus(dt); - - dt_end_node(dt); - - dt_push_u32(dt, OF_DT_END); -} - -void * __init iSeries_early_setup(void) -{ - iSeries_fixup_klimit(); - - /* - * Initialize the table which translate Linux physical addresses to - * AS/400 absolute addresses - */ - build_iSeries_Memory_Map(); - - build_flat_dt(&iseries_dt); - - return (void *) __pa(&iseries_dt); -} diff --git a/arch/ppc64/kernel/iSeries_setup.h b/arch/ppc64/kernel/iSeries_setup.h deleted file mode 100644 index c6eb29a245a..00000000000 --- a/arch/ppc64/kernel/iSeries_setup.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright (c) 2000 Mike Corrigan <mikejc@us.ibm.com> - * Copyright (c) 1999-2000 Grant Erickson <grant@lcse.umn.edu> - * - * Module name: as400_setup.h - * - * Description: - * Architecture- / platform-specific boot-time initialization code for - * the IBM AS/400 LPAR. Adapted from original code by Grant Erickson and - * code by Gary Thomas, Cort Dougan <cort@cs.nmt.edu>, and Dan Malek - * <dan@netx4.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. - */ - -#ifndef __ISERIES_SETUP_H__ -#define __ISERIES_SETUP_H__ - -extern void iSeries_get_boot_time(struct rtc_time *tm); -extern int iSeries_set_rtc_time(struct rtc_time *tm); -extern void iSeries_get_rtc_time(struct rtc_time *tm); - -#endif /* __ISERIES_SETUP_H__ */ diff --git a/arch/ppc64/kernel/iSeries_smp.c b/arch/ppc64/kernel/iSeries_smp.c deleted file mode 100644 index f982e5b805f..00000000000 --- a/arch/ppc64/kernel/iSeries_smp.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * SMP support for iSeries 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/smp_lock.h> -#include <linux/interrupt.h> -#include <linux/kernel_stat.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/smp.h> -#include <asm/paca.h> -#include <asm/iSeries/HvCall.h> -#include <asm/time.h> -#include <asm/ppcdebug.h> -#include <asm/machdep.h> -#include <asm/cputable.h> -#include <asm/system.h> - -static unsigned long iSeries_smp_message[NR_CPUS]; - -void iSeries_smp_message_recv( struct pt_regs * regs ) -{ - int cpu = smp_processor_id(); - int msg; - - if ( num_online_cpus() < 2 ) - return; - - for ( msg = 0; msg < 4; ++msg ) - if ( test_and_clear_bit( msg, &iSeries_smp_message[cpu] ) ) - smp_message_recv( msg, regs ); -} - -static inline void smp_iSeries_do_message(int cpu, int msg) -{ - set_bit(msg, &iSeries_smp_message[cpu]); - HvCall_sendIPI(&(paca[cpu])); -} - -static void smp_iSeries_message_pass(int target, int msg) -{ - int i; - - if (target < NR_CPUS) - smp_iSeries_do_message(target, msg); - else { - for_each_online_cpu(i) { - if (target == MSG_ALL_BUT_SELF - && i == smp_processor_id()) - continue; - smp_iSeries_do_message(i, msg); - } - } -} - -static int smp_iSeries_probe(void) -{ - return cpus_weight(cpu_possible_map); -} - -static void smp_iSeries_kick_cpu(int nr) -{ - BUG_ON(nr < 0 || nr >= NR_CPUS); - - /* Verify that our partition has a processor nr */ - if (paca[nr].lppaca.dyn_proc_status >= 2) - 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 in iSeries_head.S - */ - paca[nr].cpu_start = 1; -} - -static void __devinit smp_iSeries_setup_cpu(int nr) -{ -} - -static struct smp_ops_t iSeries_smp_ops = { - .message_pass = smp_iSeries_message_pass, - .probe = smp_iSeries_probe, - .kick_cpu = smp_iSeries_kick_cpu, - .setup_cpu = smp_iSeries_setup_cpu, -}; - -/* This is called very early. */ -void __init smp_init_iSeries(void) -{ - smp_ops = &iSeries_smp_ops; -} diff --git a/arch/ppc64/kernel/iSeries_vio.c b/arch/ppc64/kernel/iSeries_vio.c deleted file mode 100644 index c0f7d2e9153..00000000000 --- a/arch/ppc64/kernel/iSeries_vio.c +++ /dev/null @@ -1,156 +0,0 @@ -/* - * IBM PowerPC iSeries Virtual I/O Infrastructure Support. - * - * Copyright (c) 2005 Stephen Rothwell, 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/types.h> -#include <linux/device.h> -#include <linux/init.h> - -#include <asm/vio.h> -#include <asm/iommu.h> -#include <asm/tce.h> -#include <asm/abs_addr.h> -#include <asm/page.h> -#include <asm/iSeries/vio.h> -#include <asm/iSeries/HvTypes.h> -#include <asm/iSeries/HvLpConfig.h> -#include <asm/iSeries/HvCallXm.h> - -struct device *iSeries_vio_dev = &vio_bus_device.dev; -EXPORT_SYMBOL(iSeries_vio_dev); - -static struct iommu_table veth_iommu_table; -static struct iommu_table vio_iommu_table; - -static void __init iommu_vio_init(void) -{ - struct iommu_table *t; - struct iommu_table_cb cb; - unsigned long cbp; - unsigned long itc_entries; - - cb.itc_busno = 255; /* Bus 255 is the virtual bus */ - cb.itc_virtbus = 0xff; /* Ask for virtual bus */ - - cbp = virt_to_abs(&cb); - HvCallXm_getTceTableParms(cbp); - - itc_entries = cb.itc_size * PAGE_SIZE / sizeof(union tce_entry); - veth_iommu_table.it_size = itc_entries / 2; - veth_iommu_table.it_busno = cb.itc_busno; - veth_iommu_table.it_offset = cb.itc_offset; - veth_iommu_table.it_index = cb.itc_index; - veth_iommu_table.it_type = TCE_VB; - veth_iommu_table.it_blocksize = 1; - - t = iommu_init_table(&veth_iommu_table); - - if (!t) - printk("Virtual Bus VETH TCE table failed.\n"); - - vio_iommu_table.it_size = itc_entries - veth_iommu_table.it_size; - vio_iommu_table.it_busno = cb.itc_busno; - vio_iommu_table.it_offset = cb.itc_offset + - veth_iommu_table.it_size; - vio_iommu_table.it_index = cb.itc_index; - vio_iommu_table.it_type = TCE_VB; - vio_iommu_table.it_blocksize = 1; - - t = iommu_init_table(&vio_iommu_table); - - if (!t) - printk("Virtual Bus VIO TCE table failed.\n"); -} - -/** - * vio_register_device_iseries: - Register a new iSeries vio device. - * @voidev: The device to register. - */ -static struct vio_dev *__init vio_register_device_iseries(char *type, - uint32_t unit_num) -{ - struct vio_dev *viodev; - - /* allocate a vio_dev for this device */ - viodev = kmalloc(sizeof(struct vio_dev), GFP_KERNEL); - if (!viodev) - return NULL; - memset(viodev, 0, sizeof(struct vio_dev)); - - snprintf(viodev->dev.bus_id, BUS_ID_SIZE, "%s%d", type, unit_num); - - viodev->name = viodev->dev.bus_id; - viodev->type = type; - viodev->unit_address = unit_num; - viodev->iommu_table = &vio_iommu_table; - if (vio_register_device(viodev) == NULL) { - kfree(viodev); - return NULL; - } - return viodev; -} - -void __init probe_bus_iseries(void) -{ - HvLpIndexMap vlan_map; - struct vio_dev *viodev; - int i; - - /* there is only one of each of these */ - vio_register_device_iseries("viocons", 0); - vio_register_device_iseries("vscsi", 0); - - vlan_map = HvLpConfig_getVirtualLanIndexMap(); - for (i = 0; i < HVMAXARCHITECTEDVIRTUALLANS; i++) { - if ((vlan_map & (0x8000 >> i)) == 0) - continue; - viodev = vio_register_device_iseries("vlan", i); - /* veth is special and has it own iommu_table */ - viodev->iommu_table = &veth_iommu_table; - } - for (i = 0; i < HVMAXARCHITECTEDVIRTUALDISKS; i++) - vio_register_device_iseries("viodasd", i); - for (i = 0; i < HVMAXARCHITECTEDVIRTUALCDROMS; i++) - vio_register_device_iseries("viocd", i); - for (i = 0; i < HVMAXARCHITECTEDVIRTUALTAPES; i++) - vio_register_device_iseries("viotape", i); -} - -/** - * vio_match_device_iseries: - Tell if a iSeries VIO device matches a - * vio_device_id - */ -static int vio_match_device_iseries(const struct vio_device_id *id, - const struct vio_dev *dev) -{ - return strncmp(dev->type, id->type, strlen(id->type)) == 0; -} - -static struct vio_bus_ops vio_bus_ops_iseries = { - .match = vio_match_device_iseries, -}; - -/** - * vio_bus_init_iseries: - Initialize the iSeries virtual IO bus - */ -static int __init vio_bus_init_iseries(void) -{ - int err; - - err = vio_bus_init(&vio_bus_ops_iseries); - if (err == 0) { - iommu_vio_init(); - vio_bus_device.iommu_table = &vio_iommu_table; - iSeries_vio_dev = &vio_bus_device.dev; - probe_bus_iseries(); - } - return err; -} - -__initcall(vio_bus_init_iseries); diff --git a/arch/ppc64/kernel/maple_pci.c b/arch/ppc64/kernel/maple_pci.c index 1d297e0edfc..0937649f496 100644 --- a/arch/ppc64/kernel/maple_pci.c +++ b/arch/ppc64/kernel/maple_pci.c @@ -23,8 +23,7 @@ #include <asm/pci-bridge.h> #include <asm/machdep.h> #include <asm/iommu.h> - -#include "pci.h" +#include <asm/ppc-pci.h> #ifdef DEBUG #define DBG(x...) printk(x) diff --git a/arch/ppc64/kernel/mf.c b/arch/ppc64/kernel/mf.c deleted file mode 100644 index ef4a338ebd0..00000000000 --- a/arch/ppc64/kernel/mf.c +++ /dev/null @@ -1,1281 +0,0 @@ -/* - * mf.c - * Copyright (C) 2001 Troy D. Armstrong IBM Corporation - * Copyright (C) 2004-2005 Stephen Rothwell IBM Corporation - * - * This modules exists as an interface between a Linux secondary partition - * running on an iSeries and the primary partition's Virtual Service - * Processor (VSP) object. The VSP has final authority over powering on/off - * all partitions in the iSeries. It also provides miscellaneous low-level - * machine facility type operations. - * - * - * 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/types.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/completion.h> -#include <linux/delay.h> -#include <linux/dma-mapping.h> -#include <linux/bcd.h> - -#include <asm/time.h> -#include <asm/uaccess.h> -#include <asm/paca.h> -#include <asm/iSeries/vio.h> -#include <asm/iSeries/mf.h> -#include <asm/iSeries/HvLpConfig.h> -#include <asm/iSeries/ItLpQueue.h> - -/* - * This is the structure layout for the Machine Facilites LPAR event - * flows. - */ -struct vsp_cmd_data { - u64 token; - u16 cmd; - HvLpIndex lp_index; - u8 result_code; - u32 reserved; - union { - u64 state; /* GetStateOut */ - u64 ipl_type; /* GetIplTypeOut, Function02SelectIplTypeIn */ - u64 ipl_mode; /* GetIplModeOut, Function02SelectIplModeIn */ - u64 page[4]; /* GetSrcHistoryIn */ - u64 flag; /* GetAutoIplWhenPrimaryIplsOut, - SetAutoIplWhenPrimaryIplsIn, - WhiteButtonPowerOffIn, - Function08FastPowerOffIn, - IsSpcnRackPowerIncompleteOut */ - struct { - u64 token; - u64 address_type; - u64 side; - u32 length; - u32 offset; - } kern; /* SetKernelImageIn, GetKernelImageIn, - SetKernelCmdLineIn, GetKernelCmdLineIn */ - u32 length_out; /* GetKernelImageOut, GetKernelCmdLineOut */ - u8 reserved[80]; - } sub_data; -}; - -struct vsp_rsp_data { - struct completion com; - struct vsp_cmd_data *response; -}; - -struct alloc_data { - u16 size; - u16 type; - u32 count; - u16 reserved1; - u8 reserved2; - HvLpIndex target_lp; -}; - -struct ce_msg_data; - -typedef void (*ce_msg_comp_hdlr)(void *token, struct ce_msg_data *vsp_cmd_rsp); - -struct ce_msg_comp_data { - ce_msg_comp_hdlr handler; - void *token; -}; - -struct ce_msg_data { - u8 ce_msg[12]; - char reserved[4]; - struct ce_msg_comp_data *completion; -}; - -struct io_mf_lp_event { - struct HvLpEvent hp_lp_event; - u16 subtype_result_code; - u16 reserved1; - u32 reserved2; - union { - struct alloc_data alloc; - struct ce_msg_data ce_msg; - struct vsp_cmd_data vsp_cmd; - } data; -}; - -#define subtype_data(a, b, c, d) \ - (((a) << 24) + ((b) << 16) + ((c) << 8) + (d)) - -/* - * All outgoing event traffic is kept on a FIFO queue. The first - * pointer points to the one that is outstanding, and all new - * requests get stuck on the end. Also, we keep a certain number of - * preallocated pending events so that we can operate very early in - * the boot up sequence (before kmalloc is ready). - */ -struct pending_event { - struct pending_event *next; - struct io_mf_lp_event event; - MFCompleteHandler hdlr; - char dma_data[72]; - unsigned dma_data_length; - unsigned remote_address; -}; -static spinlock_t pending_event_spinlock; -static struct pending_event *pending_event_head; -static struct pending_event *pending_event_tail; -static struct pending_event *pending_event_avail; -static struct pending_event pending_event_prealloc[16]; - -/* - * Put a pending event onto the available queue, so it can get reused. - * Attention! You must have the pending_event_spinlock before calling! - */ -static void free_pending_event(struct pending_event *ev) -{ - if (ev != NULL) { - ev->next = pending_event_avail; - pending_event_avail = ev; - } -} - -/* - * Enqueue the outbound event onto the stack. If the queue was - * empty to begin with, we must also issue it via the Hypervisor - * interface. There is a section of code below that will touch - * the first stack pointer without the protection of the pending_event_spinlock. - * This is OK, because we know that nobody else will be modifying - * the first pointer when we do this. - */ -static int signal_event(struct pending_event *ev) -{ - int rc = 0; - unsigned long flags; - int go = 1; - struct pending_event *ev1; - HvLpEvent_Rc hv_rc; - - /* enqueue the event */ - if (ev != NULL) { - ev->next = NULL; - spin_lock_irqsave(&pending_event_spinlock, flags); - if (pending_event_head == NULL) - pending_event_head = ev; - else { - go = 0; - pending_event_tail->next = ev; - } - pending_event_tail = ev; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - } - - /* send the event */ - while (go) { - go = 0; - - /* any DMA data to send beforehand? */ - if (pending_event_head->dma_data_length > 0) - HvCallEvent_dmaToSp(pending_event_head->dma_data, - pending_event_head->remote_address, - pending_event_head->dma_data_length, - HvLpDma_Direction_LocalToRemote); - - hv_rc = HvCallEvent_signalLpEvent( - &pending_event_head->event.hp_lp_event); - if (hv_rc != HvLpEvent_Rc_Good) { - printk(KERN_ERR "mf.c: HvCallEvent_signalLpEvent() " - "failed with %d\n", (int)hv_rc); - - spin_lock_irqsave(&pending_event_spinlock, flags); - ev1 = pending_event_head; - pending_event_head = pending_event_head->next; - if (pending_event_head != NULL) - go = 1; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - - if (ev1 == ev) - rc = -EIO; - else if (ev1->hdlr != NULL) - (*ev1->hdlr)((void *)ev1->event.hp_lp_event.xCorrelationToken, -EIO); - - spin_lock_irqsave(&pending_event_spinlock, flags); - free_pending_event(ev1); - spin_unlock_irqrestore(&pending_event_spinlock, flags); - } - } - - return rc; -} - -/* - * Allocate a new pending_event structure, and initialize it. - */ -static struct pending_event *new_pending_event(void) -{ - struct pending_event *ev = NULL; - HvLpIndex primary_lp = HvLpConfig_getPrimaryLpIndex(); - unsigned long flags; - struct HvLpEvent *hev; - - spin_lock_irqsave(&pending_event_spinlock, flags); - if (pending_event_avail != NULL) { - ev = pending_event_avail; - pending_event_avail = pending_event_avail->next; - } - spin_unlock_irqrestore(&pending_event_spinlock, flags); - if (ev == NULL) { - ev = kmalloc(sizeof(struct pending_event), GFP_ATOMIC); - if (ev == NULL) { - printk(KERN_ERR "mf.c: unable to kmalloc %ld bytes\n", - sizeof(struct pending_event)); - return NULL; - } - } - memset(ev, 0, sizeof(struct pending_event)); - hev = &ev->event.hp_lp_event; - hev->xFlags.xValid = 1; - hev->xFlags.xAckType = HvLpEvent_AckType_ImmediateAck; - hev->xFlags.xAckInd = HvLpEvent_AckInd_DoAck; - hev->xFlags.xFunction = HvLpEvent_Function_Int; - hev->xType = HvLpEvent_Type_MachineFac; - hev->xSourceLp = HvLpConfig_getLpIndex(); - hev->xTargetLp = primary_lp; - hev->xSizeMinus1 = sizeof(ev->event) - 1; - hev->xRc = HvLpEvent_Rc_Good; - hev->xSourceInstanceId = HvCallEvent_getSourceLpInstanceId(primary_lp, - HvLpEvent_Type_MachineFac); - hev->xTargetInstanceId = HvCallEvent_getTargetLpInstanceId(primary_lp, - HvLpEvent_Type_MachineFac); - - return ev; -} - -static int signal_vsp_instruction(struct vsp_cmd_data *vsp_cmd) -{ - struct pending_event *ev = new_pending_event(); - int rc; - struct vsp_rsp_data response; - - if (ev == NULL) - return -ENOMEM; - - init_completion(&response.com); - response.response = vsp_cmd; - ev->event.hp_lp_event.xSubtype = 6; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'V', 'I'); - ev->event.data.vsp_cmd.token = (u64)&response; - ev->event.data.vsp_cmd.cmd = vsp_cmd->cmd; - ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex(); - ev->event.data.vsp_cmd.result_code = 0xFF; - ev->event.data.vsp_cmd.reserved = 0; - memcpy(&(ev->event.data.vsp_cmd.sub_data), - &(vsp_cmd->sub_data), sizeof(vsp_cmd->sub_data)); - mb(); - - rc = signal_event(ev); - if (rc == 0) - wait_for_completion(&response.com); - return rc; -} - - -/* - * Send a 12-byte CE message to the primary partition VSP object - */ -static int signal_ce_msg(char *ce_msg, struct ce_msg_comp_data *completion) -{ - struct pending_event *ev = new_pending_event(); - - if (ev == NULL) - return -ENOMEM; - - ev->event.hp_lp_event.xSubtype = 0; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'C', 'E'); - memcpy(ev->event.data.ce_msg.ce_msg, ce_msg, 12); - ev->event.data.ce_msg.completion = completion; - return signal_event(ev); -} - -/* - * Send a 12-byte CE message (with no data) to the primary partition VSP object - */ -static int signal_ce_msg_simple(u8 ce_op, struct ce_msg_comp_data *completion) -{ - u8 ce_msg[12]; - - memset(ce_msg, 0, sizeof(ce_msg)); - ce_msg[3] = ce_op; - return signal_ce_msg(ce_msg, completion); -} - -/* - * Send a 12-byte CE message and DMA data to the primary partition VSP object - */ -static int dma_and_signal_ce_msg(char *ce_msg, - struct ce_msg_comp_data *completion, void *dma_data, - unsigned dma_data_length, unsigned remote_address) -{ - struct pending_event *ev = new_pending_event(); - - if (ev == NULL) - return -ENOMEM; - - ev->event.hp_lp_event.xSubtype = 0; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'C', 'E'); - memcpy(ev->event.data.ce_msg.ce_msg, ce_msg, 12); - ev->event.data.ce_msg.completion = completion; - memcpy(ev->dma_data, dma_data, dma_data_length); - ev->dma_data_length = dma_data_length; - ev->remote_address = remote_address; - return signal_event(ev); -} - -/* - * Initiate a nice (hopefully) shutdown of Linux. We simply are - * going to try and send the init process a SIGINT signal. If - * this fails (why?), we'll simply force it off in a not-so-nice - * manner. - */ -static int shutdown(void) -{ - int rc = kill_proc(1, SIGINT, 1); - - if (rc) { - printk(KERN_ALERT "mf.c: SIGINT to init failed (%d), " - "hard shutdown commencing\n", rc); - mf_power_off(); - } else - printk(KERN_INFO "mf.c: init has been successfully notified " - "to proceed with shutdown\n"); - return rc; -} - -/* - * The primary partition VSP object is sending us a new - * event flow. Handle it... - */ -static void handle_int(struct io_mf_lp_event *event) -{ - struct ce_msg_data *ce_msg_data; - struct ce_msg_data *pce_msg_data; - unsigned long flags; - struct pending_event *pev; - - /* ack the interrupt */ - event->hp_lp_event.xRc = HvLpEvent_Rc_Good; - HvCallEvent_ackLpEvent(&event->hp_lp_event); - - /* process interrupt */ - switch (event->hp_lp_event.xSubtype) { - case 0: /* CE message */ - ce_msg_data = &event->data.ce_msg; - switch (ce_msg_data->ce_msg[3]) { - case 0x5B: /* power control notification */ - if ((ce_msg_data->ce_msg[5] & 0x20) != 0) { - printk(KERN_INFO "mf.c: Commencing partition shutdown\n"); - if (shutdown() == 0) - signal_ce_msg_simple(0xDB, NULL); - } - break; - case 0xC0: /* get time */ - spin_lock_irqsave(&pending_event_spinlock, flags); - pev = pending_event_head; - if (pev != NULL) - pending_event_head = pending_event_head->next; - spin_unlock_irqrestore(&pending_event_spinlock, flags); - if (pev == NULL) - break; - pce_msg_data = &pev->event.data.ce_msg; - if (pce_msg_data->ce_msg[3] != 0x40) - break; - if (pce_msg_data->completion != NULL) { - ce_msg_comp_hdlr handler = - pce_msg_data->completion->handler; - void *token = pce_msg_data->completion->token; - - if (handler != NULL) - (*handler)(token, ce_msg_data); - } - spin_lock_irqsave(&pending_event_spinlock, flags); - free_pending_event(pev); - spin_unlock_irqrestore(&pending_event_spinlock, flags); - /* send next waiting event */ - if (pending_event_head != NULL) - signal_event(NULL); - break; - } - break; - case 1: /* IT sys shutdown */ - printk(KERN_INFO "mf.c: Commencing system shutdown\n"); - shutdown(); - break; - } -} - -/* - * The primary partition VSP object is acknowledging the receipt - * of a flow we sent to them. If there are other flows queued - * up, we must send another one now... - */ -static void handle_ack(struct io_mf_lp_event *event) -{ - unsigned long flags; - struct pending_event *two = NULL; - unsigned long free_it = 0; - struct ce_msg_data *ce_msg_data; - struct ce_msg_data *pce_msg_data; - struct vsp_rsp_data *rsp; - - /* handle current event */ - if (pending_event_head == NULL) { - printk(KERN_ERR "mf.c: stack empty for receiving ack\n"); - return; - } - - switch (event->hp_lp_event.xSubtype) { - case 0: /* CE msg */ - ce_msg_data = &event->data.ce_msg; - if (ce_msg_data->ce_msg[3] != 0x40) { - free_it = 1; - break; - } - if (ce_msg_data->ce_msg[2] == 0) - break; - free_it = 1; - pce_msg_data = &pending_event_head->event.data.ce_msg; - if (pce_msg_data->completion != NULL) { - ce_msg_comp_hdlr handler = - pce_msg_data->completion->handler; - void *token = pce_msg_data->completion->token; - - if (handler != NULL) - (*handler)(token, ce_msg_data); - } - break; - case 4: /* allocate */ - case 5: /* deallocate */ - if (pending_event_head->hdlr != NULL) - (*pending_event_head->hdlr)((void *)event->hp_lp_event.xCorrelationToken, event->data.alloc.count); - free_it = 1; - break; - case 6: - free_it = 1; - rsp = (struct vsp_rsp_data *)event->data.vsp_cmd.token; - if (rsp == NULL) { - printk(KERN_ERR "mf.c: no rsp\n"); - break; - } - if (rsp->response != NULL) - memcpy(rsp->response, &event->data.vsp_cmd, - sizeof(event->data.vsp_cmd)); - complete(&rsp->com); - break; - } - - /* remove from queue */ - spin_lock_irqsave(&pending_event_spinlock, flags); - if ((pending_event_head != NULL) && (free_it == 1)) { - struct pending_event *oldHead = pending_event_head; - - pending_event_head = pending_event_head->next; - two = pending_event_head; - free_pending_event(oldHead); - } - spin_unlock_irqrestore(&pending_event_spinlock, flags); - - /* send next waiting event */ - if (two != NULL) - signal_event(NULL); -} - -/* - * This is the generic event handler we are registering with - * the Hypervisor. Ensure the flows are for us, and then - * parse it enough to know if it is an interrupt or an - * acknowledge. - */ -static void hv_handler(struct HvLpEvent *event, struct pt_regs *regs) -{ - if ((event != NULL) && (event->xType == HvLpEvent_Type_MachineFac)) { - switch(event->xFlags.xFunction) { - case HvLpEvent_Function_Ack: - handle_ack((struct io_mf_lp_event *)event); - break; - case HvLpEvent_Function_Int: - handle_int((struct io_mf_lp_event *)event); - break; - default: - printk(KERN_ERR "mf.c: non ack/int event received\n"); - break; - } - } else - printk(KERN_ERR "mf.c: alien event received\n"); -} - -/* - * Global kernel interface to allocate and seed events into the - * Hypervisor. - */ -void mf_allocate_lp_events(HvLpIndex target_lp, HvLpEvent_Type type, - unsigned size, unsigned count, MFCompleteHandler hdlr, - void *user_token) -{ - struct pending_event *ev = new_pending_event(); - int rc; - - if (ev == NULL) { - rc = -ENOMEM; - } else { - ev->event.hp_lp_event.xSubtype = 4; - ev->event.hp_lp_event.xCorrelationToken = (u64)user_token; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'M', 'A'); - ev->event.data.alloc.target_lp = target_lp; - ev->event.data.alloc.type = type; - ev->event.data.alloc.size = size; - ev->event.data.alloc.count = count; - ev->hdlr = hdlr; - rc = signal_event(ev); - } - if ((rc != 0) && (hdlr != NULL)) - (*hdlr)(user_token, rc); -} -EXPORT_SYMBOL(mf_allocate_lp_events); - -/* - * Global kernel interface to unseed and deallocate events already in - * Hypervisor. - */ -void mf_deallocate_lp_events(HvLpIndex target_lp, HvLpEvent_Type type, - unsigned count, MFCompleteHandler hdlr, void *user_token) -{ - struct pending_event *ev = new_pending_event(); - int rc; - - if (ev == NULL) - rc = -ENOMEM; - else { - ev->event.hp_lp_event.xSubtype = 5; - ev->event.hp_lp_event.xCorrelationToken = (u64)user_token; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'M', 'D'); - ev->event.data.alloc.target_lp = target_lp; - ev->event.data.alloc.type = type; - ev->event.data.alloc.count = count; - ev->hdlr = hdlr; - rc = signal_event(ev); - } - if ((rc != 0) && (hdlr != NULL)) - (*hdlr)(user_token, rc); -} -EXPORT_SYMBOL(mf_deallocate_lp_events); - -/* - * Global kernel interface to tell the VSP object in the primary - * partition to power this partition off. - */ -void mf_power_off(void) -{ - printk(KERN_INFO "mf.c: Down it goes...\n"); - signal_ce_msg_simple(0x4d, NULL); - for (;;) - ; -} - -/* - * Global kernel interface to tell the VSP object in the primary - * partition to reboot this partition. - */ -void mf_reboot(void) -{ - printk(KERN_INFO "mf.c: Preparing to bounce...\n"); - signal_ce_msg_simple(0x4e, NULL); - for (;;) - ; -} - -/* - * Display a single word SRC onto the VSP control panel. - */ -void mf_display_src(u32 word) -{ - u8 ce[12]; - - memset(ce, 0, sizeof(ce)); - ce[3] = 0x4a; - ce[7] = 0x01; - ce[8] = word >> 24; - ce[9] = word >> 16; - ce[10] = word >> 8; - ce[11] = word; - signal_ce_msg(ce, NULL); -} - -/* - * Display a single word SRC of the form "PROGXXXX" on the VSP control panel. - */ -void mf_display_progress(u16 value) -{ - u8 ce[12]; - u8 src[72]; - - memcpy(ce, "\x00\x00\x04\x4A\x00\x00\x00\x48\x00\x00\x00\x00", 12); - memcpy(src, "\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" - "\x00\x00\x00\x00PROGxxxx ", - 72); - src[6] = value >> 8; - src[7] = value & 255; - src[44] = "0123456789ABCDEF"[(value >> 12) & 15]; - src[45] = "0123456789ABCDEF"[(value >> 8) & 15]; - src[46] = "0123456789ABCDEF"[(value >> 4) & 15]; - src[47] = "0123456789ABCDEF"[value & 15]; - dma_and_signal_ce_msg(ce, NULL, src, sizeof(src), 9 * 64 * 1024); -} - -/* - * Clear the VSP control panel. Used to "erase" an SRC that was - * previously displayed. - */ -void mf_clear_src(void) -{ - signal_ce_msg_simple(0x4b, NULL); -} - -/* - * Initialization code here. - */ -void mf_init(void) -{ - int i; - - /* initialize */ - spin_lock_init(&pending_event_spinlock); - for (i = 0; - i < sizeof(pending_event_prealloc) / sizeof(*pending_event_prealloc); - ++i) - free_pending_event(&pending_event_prealloc[i]); - HvLpEvent_registerHandler(HvLpEvent_Type_MachineFac, &hv_handler); - - /* virtual continue ack */ - signal_ce_msg_simple(0x57, NULL); - - /* initialization complete */ - printk(KERN_NOTICE "mf.c: iSeries Linux LPAR Machine Facilities " - "initialized\n"); -} - -struct rtc_time_data { - struct completion com; - struct ce_msg_data ce_msg; - int rc; -}; - -static void get_rtc_time_complete(void *token, struct ce_msg_data *ce_msg) -{ - struct rtc_time_data *rtc = token; - - memcpy(&rtc->ce_msg, ce_msg, sizeof(rtc->ce_msg)); - rtc->rc = 0; - complete(&rtc->com); -} - -static int rtc_set_tm(int rc, u8 *ce_msg, struct rtc_time *tm) -{ - tm->tm_wday = 0; - tm->tm_yday = 0; - tm->tm_isdst = 0; - if (rc) { - tm->tm_sec = 0; - tm->tm_min = 0; - tm->tm_hour = 0; - tm->tm_mday = 15; - tm->tm_mon = 5; - tm->tm_year = 52; - return rc; - } - - if ((ce_msg[2] == 0xa9) || - (ce_msg[2] == 0xaf)) { - /* TOD clock is not set */ - tm->tm_sec = 1; - tm->tm_min = 1; - tm->tm_hour = 1; - tm->tm_mday = 10; - tm->tm_mon = 8; - tm->tm_year = 71; - mf_set_rtc(tm); - } - { - u8 year = ce_msg[5]; - u8 sec = ce_msg[6]; - u8 min = ce_msg[7]; - u8 hour = ce_msg[8]; - 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); - - if (year <= 69) - year += 100; - - tm->tm_sec = sec; - tm->tm_min = min; - tm->tm_hour = hour; - tm->tm_mday = day; - tm->tm_mon = mon; - tm->tm_year = year; - } - - return 0; -} - -int mf_get_rtc(struct rtc_time *tm) -{ - struct ce_msg_comp_data ce_complete; - struct rtc_time_data rtc_data; - int rc; - - memset(&ce_complete, 0, sizeof(ce_complete)); - memset(&rtc_data, 0, sizeof(rtc_data)); - init_completion(&rtc_data.com); - ce_complete.handler = &get_rtc_time_complete; - ce_complete.token = &rtc_data; - rc = signal_ce_msg_simple(0x40, &ce_complete); - if (rc) - return rc; - wait_for_completion(&rtc_data.com); - return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm); -} - -struct boot_rtc_time_data { - int busy; - struct ce_msg_data ce_msg; - int rc; -}; - -static void get_boot_rtc_time_complete(void *token, struct ce_msg_data *ce_msg) -{ - struct boot_rtc_time_data *rtc = token; - - memcpy(&rtc->ce_msg, ce_msg, sizeof(rtc->ce_msg)); - rtc->rc = 0; - rtc->busy = 0; -} - -int mf_get_boot_rtc(struct rtc_time *tm) -{ - struct ce_msg_comp_data ce_complete; - struct boot_rtc_time_data rtc_data; - int rc; - - memset(&ce_complete, 0, sizeof(ce_complete)); - memset(&rtc_data, 0, sizeof(rtc_data)); - rtc_data.busy = 1; - ce_complete.handler = &get_boot_rtc_time_complete; - ce_complete.token = &rtc_data; - rc = signal_ce_msg_simple(0x40, &ce_complete); - if (rc) - return rc; - /* We need to poll here as we are not yet taking interrupts */ - while (rtc_data.busy) { - if (hvlpevent_is_pending()) - process_hvlpevents(NULL); - } - return rtc_set_tm(rtc_data.rc, rtc_data.ce_msg.ce_msg, tm); -} - -int mf_set_rtc(struct rtc_time *tm) -{ - char ce_time[12]; - u8 day, mon, hour, min, sec, y1, y2; - unsigned year; - - year = 1900 + tm->tm_year; - y1 = year / 100; - y2 = year % 100; - - sec = tm->tm_sec; - min = tm->tm_min; - hour = tm->tm_hour; - 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); - - memset(ce_time, 0, sizeof(ce_time)); - ce_time[3] = 0x41; - ce_time[4] = y1; - ce_time[5] = y2; - ce_time[6] = sec; - ce_time[7] = min; - ce_time[8] = hour; - ce_time[10] = day; - ce_time[11] = mon; - - return signal_ce_msg(ce_time, NULL); -} - -#ifdef CONFIG_PROC_FS - -static int proc_mf_dump_cmdline(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - char *p; - struct vsp_cmd_data vsp_cmd; - int rc; - dma_addr_t dma_addr; - - /* The HV appears to return no more than 256 bytes of command line */ - if (off >= 256) - return 0; - if ((off + count) > 256) - count = 256 - off; - - dma_addr = dma_map_single(iSeries_vio_dev, page, off + count, - DMA_FROM_DEVICE); - if (dma_mapping_error(dma_addr)) - return -ENOMEM; - memset(page, 0, off + count); - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 33; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)data; - vsp_cmd.sub_data.kern.length = off + count; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - dma_unmap_single(iSeries_vio_dev, dma_addr, off + count, - DMA_FROM_DEVICE); - if (rc) - return rc; - if (vsp_cmd.result_code != 0) - return -ENOMEM; - p = page; - len = 0; - while (len < (off + count)) { - if ((*p == '\0') || (*p == '\n')) { - if (*p == '\0') - *p = '\n'; - p++; - len++; - *eof = 1; - break; - } - p++; - len++; - } - - if (len < off) { - *eof = 1; - len = 0; - } - return len; -} - -#if 0 -static int mf_getVmlinuxChunk(char *buffer, int *size, int offset, u64 side) -{ - struct vsp_cmd_data vsp_cmd; - int rc; - int len = *size; - dma_addr_t dma_addr; - - dma_addr = dma_map_single(iSeries_vio_dev, buffer, len, - DMA_FROM_DEVICE); - memset(buffer, 0, len); - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 32; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = side; - vsp_cmd.sub_data.kern.offset = offset; - vsp_cmd.sub_data.kern.length = len; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - if (rc == 0) { - if (vsp_cmd.result_code == 0) - *size = vsp_cmd.sub_data.length_out; - else - rc = -ENOMEM; - } - - dma_unmap_single(iSeries_vio_dev, dma_addr, len, DMA_FROM_DEVICE); - - return rc; -} - -static int proc_mf_dump_vmlinux(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int sizeToGet = count; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if (mf_getVmlinuxChunk(page, &sizeToGet, off, (u64)data) == 0) { - if (sizeToGet != 0) { - *start = page + off; - return sizeToGet; - } - *eof = 1; - return 0; - } - *eof = 1; - return 0; -} -#endif - -static int proc_mf_dump_side(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ - int len; - char mf_current_side = ' '; - struct vsp_cmd_data vsp_cmd; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 2; - vsp_cmd.sub_data.ipl_type = 0; - mb(); - - if (signal_vsp_instruction(&vsp_cmd) == 0) { - if (vsp_cmd.result_code == 0) { - switch (vsp_cmd.sub_data.ipl_type) { - case 0: mf_current_side = 'A'; - break; - case 1: mf_current_side = 'B'; - break; - case 2: mf_current_side = 'C'; - break; - default: mf_current_side = 'D'; - break; - } - } - } - - len = sprintf(page, "%c\n", mf_current_side); - - if (len <= (off + count)) - *eof = 1; - *start = page + off; - len -= off; - if (len > count) - len = count; - if (len < 0) - len = 0; - return len; -} - -static int proc_mf_change_side(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char side; - u64 newSide; - struct vsp_cmd_data vsp_cmd; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if (count == 0) - return 0; - - if (get_user(side, buffer)) - return -EFAULT; - - switch (side) { - case 'A': newSide = 0; - break; - case 'B': newSide = 1; - break; - case 'C': newSide = 2; - break; - case 'D': newSide = 3; - break; - default: - printk(KERN_ERR "mf_proc.c: proc_mf_change_side: invalid side\n"); - return -EINVAL; - } - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.sub_data.ipl_type = newSide; - vsp_cmd.cmd = 10; - - (void)signal_vsp_instruction(&vsp_cmd); - - return count; -} - -#if 0 -static void mf_getSrcHistory(char *buffer, int size) -{ - struct IplTypeReturnStuff return_stuff; - struct pending_event *ev = new_pending_event(); - int rc = 0; - char *pages[4]; - - pages[0] = kmalloc(4096, GFP_ATOMIC); - pages[1] = kmalloc(4096, GFP_ATOMIC); - pages[2] = kmalloc(4096, GFP_ATOMIC); - pages[3] = kmalloc(4096, GFP_ATOMIC); - if ((ev == NULL) || (pages[0] == NULL) || (pages[1] == NULL) - || (pages[2] == NULL) || (pages[3] == NULL)) - return -ENOMEM; - - return_stuff.xType = 0; - return_stuff.xRc = 0; - return_stuff.xDone = 0; - ev->event.hp_lp_event.xSubtype = 6; - ev->event.hp_lp_event.x.xSubtypeData = - subtype_data('M', 'F', 'V', 'I'); - ev->event.data.vsp_cmd.xEvent = &return_stuff; - ev->event.data.vsp_cmd.cmd = 4; - ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex(); - ev->event.data.vsp_cmd.result_code = 0xFF; - ev->event.data.vsp_cmd.reserved = 0; - ev->event.data.vsp_cmd.sub_data.page[0] = ISERIES_HV_ADDR(pages[0]); - ev->event.data.vsp_cmd.sub_data.page[1] = ISERIES_HV_ADDR(pages[1]); - ev->event.data.vsp_cmd.sub_data.page[2] = ISERIES_HV_ADDR(pages[2]); - ev->event.data.vsp_cmd.sub_data.page[3] = ISERIES_HV_ADDR(pages[3]); - mb(); - if (signal_event(ev) != 0) - return; - - while (return_stuff.xDone != 1) - udelay(10); - if (return_stuff.xRc == 0) - memcpy(buffer, pages[0], size); - kfree(pages[0]); - kfree(pages[1]); - kfree(pages[2]); - kfree(pages[3]); -} -#endif - -static int proc_mf_dump_src(char *page, char **start, off_t off, - int count, int *eof, void *data) -{ -#if 0 - int len; - - mf_getSrcHistory(page, count); - len = count; - len -= off; - if (len < count) { - *eof = 1; - if (len <= 0) - return 0; - } else - len = count; - *start = page + off; - return len; -#else - return 0; -#endif -} - -static int proc_mf_change_src(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - char stkbuf[10]; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - if ((count < 4) && (count != 1)) { - printk(KERN_ERR "mf_proc: invalid src\n"); - return -EINVAL; - } - - if (count > (sizeof(stkbuf) - 1)) - count = sizeof(stkbuf) - 1; - if (copy_from_user(stkbuf, buffer, count)) - return -EFAULT; - - if ((count == 1) && (*stkbuf == '\0')) - mf_clear_src(); - else - mf_display_src(*(u32 *)stkbuf); - - return count; -} - -static int proc_mf_change_cmdline(struct file *file, const char __user *buffer, - unsigned long count, void *data) -{ - struct vsp_cmd_data vsp_cmd; - dma_addr_t dma_addr; - char *page; - int ret = -EACCES; - - if (!capable(CAP_SYS_ADMIN)) - goto out; - - dma_addr = 0; - page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr, - GFP_ATOMIC); - ret = -ENOMEM; - if (page == NULL) - goto out; - - ret = -EFAULT; - if (copy_from_user(page, buffer, count)) - goto out_free; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 31; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)data; - vsp_cmd.sub_data.kern.length = count; - mb(); - (void)signal_vsp_instruction(&vsp_cmd); - ret = count; - -out_free: - dma_free_coherent(iSeries_vio_dev, count, page, dma_addr); -out: - return ret; -} - -static ssize_t proc_mf_change_vmlinux(struct file *file, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode); - ssize_t rc; - dma_addr_t dma_addr; - char *page; - struct vsp_cmd_data vsp_cmd; - - rc = -EACCES; - if (!capable(CAP_SYS_ADMIN)) - goto out; - - dma_addr = 0; - page = dma_alloc_coherent(iSeries_vio_dev, count, &dma_addr, - GFP_ATOMIC); - rc = -ENOMEM; - if (page == NULL) { - printk(KERN_ERR "mf.c: couldn't allocate memory to set vmlinux chunk\n"); - goto out; - } - rc = -EFAULT; - if (copy_from_user(page, buf, count)) - goto out_free; - - memset(&vsp_cmd, 0, sizeof(vsp_cmd)); - vsp_cmd.cmd = 30; - vsp_cmd.sub_data.kern.token = dma_addr; - vsp_cmd.sub_data.kern.address_type = HvLpDma_AddressType_TceIndex; - vsp_cmd.sub_data.kern.side = (u64)dp->data; - vsp_cmd.sub_data.kern.offset = *ppos; - vsp_cmd.sub_data.kern.length = count; - mb(); - rc = signal_vsp_instruction(&vsp_cmd); - if (rc) - goto out_free; - rc = -ENOMEM; - if (vsp_cmd.result_code != 0) - goto out_free; - - *ppos += count; - rc = count; -out_free: - dma_free_coherent(iSeries_vio_dev, count, page, dma_addr); -out: - return rc; -} - -static struct file_operations proc_vmlinux_operations = { - .write = proc_mf_change_vmlinux, -}; - -static int __init mf_proc_init(void) -{ - struct proc_dir_entry *mf_proc_root; - struct proc_dir_entry *ent; - struct proc_dir_entry *mf; - char name[2]; - int i; - - mf_proc_root = proc_mkdir("iSeries/mf", NULL); - if (!mf_proc_root) - return 1; - - name[1] = '\0'; - for (i = 0; i < 4; i++) { - name[0] = 'A' + i; - mf = proc_mkdir(name, mf_proc_root); - if (!mf) - return 1; - - ent = create_proc_entry("cmdline", S_IFREG|S_IRUSR|S_IWUSR, mf); - if (!ent) - return 1; - ent->nlink = 1; - ent->data = (void *)(long)i; - ent->read_proc = proc_mf_dump_cmdline; - ent->write_proc = proc_mf_change_cmdline; - - if (i == 3) /* no vmlinux entry for 'D' */ - continue; - - ent = create_proc_entry("vmlinux", S_IFREG|S_IWUSR, mf); - if (!ent) - return 1; - ent->nlink = 1; - ent->data = (void *)(long)i; - ent->proc_fops = &proc_vmlinux_operations; - } - - ent = create_proc_entry("side", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root); - if (!ent) - return 1; - ent->nlink = 1; - ent->data = (void *)0; - ent->read_proc = proc_mf_dump_side; - ent->write_proc = proc_mf_change_side; - - ent = create_proc_entry("src", S_IFREG|S_IRUSR|S_IWUSR, mf_proc_root); - if (!ent) - return 1; - ent->nlink = 1; - ent->data = (void *)0; - ent->read_proc = proc_mf_dump_src; - ent->write_proc = proc_mf_change_src; - - return 0; -} - -__initcall(mf_proc_init); - -#endif /* CONFIG_PROC_FS */ diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S index a25b59759dd..d069bbd7f81 100644 --- a/arch/ppc64/kernel/misc.S +++ b/arch/ppc64/kernel/misc.S @@ -64,44 +64,6 @@ _GLOBAL(get_srr1) _GLOBAL(get_sp) mr r3,r1 blr - -#ifdef CONFIG_PPC_ISERIES -/* unsigned long local_save_flags(void) */ -_GLOBAL(local_get_flags) - lbz r3,PACAPROCENABLED(r13) - blr - -/* unsigned long local_irq_disable(void) */ -_GLOBAL(local_irq_disable) - lbz r3,PACAPROCENABLED(r13) - li r4,0 - stb r4,PACAPROCENABLED(r13) - blr /* Done */ - -/* void local_irq_restore(unsigned long flags) */ -_GLOBAL(local_irq_restore) - lbz r5,PACAPROCENABLED(r13) - /* Check if things are setup the way we want _already_. */ - cmpw 0,r3,r5 - beqlr - /* are we enabling interrupts? */ - cmpdi 0,r3,0 - stb r3,PACAPROCENABLED(r13) - beqlr - /* Check pending interrupts */ - /* A decrementer, IPI or PMC interrupt may have occurred - * while we were in the hypervisor (which enables) */ - ld r4,PACALPPACA+LPPACAANYINT(r13) - cmpdi r4,0 - beqlr - - /* - * Handle pending interrupts in interrupt context - */ - li r0,0x5555 - sc - blr -#endif /* CONFIG_PPC_ISERIES */ #ifdef CONFIG_IRQSTACKS _GLOBAL(call_do_softirq) diff --git a/arch/ppc64/kernel/pSeries_iommu.c b/arch/ppc64/kernel/pSeries_iommu.c index 5914f61a152..9e90d41131d 100644 --- a/arch/ppc64/kernel/pSeries_iommu.c +++ b/arch/ppc64/kernel/pSeries_iommu.c @@ -47,7 +47,7 @@ #include <asm/systemcfg.h> #include <asm/firmware.h> #include <asm/tce.h> -#include "pci.h" +#include <asm/ppc-pci.h> #define DBG(fmt...) diff --git a/arch/ppc64/kernel/pSeries_pci.c b/arch/ppc64/kernel/pSeries_pci.c index 1f5f141fb7a..2dd477eb1c5 100644 --- a/arch/ppc64/kernel/pSeries_pci.c +++ b/arch/ppc64/kernel/pSeries_pci.c @@ -29,8 +29,7 @@ #include <asm/pci-bridge.h> #include <asm/prom.h> - -#include "pci.h" +#include <asm/ppc-pci.h> static int __initdata s7a_workaround = -1; diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c index b9bcff21b46..5a9fe96f9f6 100644 --- a/arch/ppc64/kernel/pSeries_setup.c +++ b/arch/ppc64/kernel/pSeries_setup.c @@ -63,9 +63,9 @@ #include <asm/firmware.h> #include <asm/pmc.h> #include <asm/mpic.h> +#include <asm/ppc-pci.h> #include "i8259.h" -#include "pci.h" #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c index ff4be1da69d..feec06bbafc 100644 --- a/arch/ppc64/kernel/pci.c +++ b/arch/ppc64/kernel/pci.c @@ -31,8 +31,7 @@ #include <asm/irq.h> #include <asm/machdep.h> #include <asm/udbg.h> - -#include "pci.h" +#include <asm/ppc-pci.h> #ifdef DEBUG #define DBG(fmt...) udbg_printf(fmt) diff --git a/arch/ppc64/kernel/pci.h b/arch/ppc64/kernel/pci.h deleted file mode 100644 index 5eb2cc32056..00000000000 --- a/arch/ppc64/kernel/pci.h +++ /dev/null @@ -1,54 +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. - */ -#ifndef __PPC_KERNEL_PCI_H__ -#define __PPC_KERNEL_PCI_H__ - -#include <linux/pci.h> -#include <asm/pci-bridge.h> - -extern unsigned long isa_io_base; - -extern void pci_setup_pci_controller(struct pci_controller *hose); -extern void pci_setup_phb_io(struct pci_controller *hose, int primary); -extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary); - - -extern struct list_head hose_list; -extern int global_phb_number; - -extern unsigned long find_and_init_phbs(void); - -extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */ - -/* PCI device_node operations */ -struct device_node; -typedef void *(*traverse_func)(struct device_node *me, void *data); -void *traverse_pci_devices(struct device_node *start, traverse_func pre, - void *data); - -void pci_devs_phb_init(void); -void pci_devs_phb_init_dynamic(struct pci_controller *phb); - -/* PCI address cache management routines */ -void pci_addr_cache_insert_device(struct pci_dev *dev); -void pci_addr_cache_remove_device(struct pci_dev *dev); - -/* From rtas_pci.h */ -void init_pci_config_tokens (void); -unsigned long get_phb_buid (struct device_node *); - -/* From pSeries_pci.h */ -extern void pSeries_final_fixup(void); -extern void pSeries_irq_bus_setup(struct pci_bus *bus); - -extern unsigned long pci_probe_only; -extern unsigned long pci_assign_all_buses; -extern int pci_read_irq_line(struct pci_dev *pci_dev); - -#endif /* __PPC_KERNEL_PCI_H__ */ diff --git a/arch/ppc64/kernel/pci_direct_iommu.c b/arch/ppc64/kernel/pci_direct_iommu.c index b8f7f58824f..57980a5674d 100644 --- a/arch/ppc64/kernel/pci_direct_iommu.c +++ b/arch/ppc64/kernel/pci_direct_iommu.c @@ -27,8 +27,7 @@ #include <asm/machdep.h> #include <asm/pmac_feature.h> #include <asm/abs_addr.h> - -#include "pci.h" +#include <asm/ppc-pci.h> static void *pci_direct_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, unsigned int __nocast flag) diff --git a/arch/ppc64/kernel/pci_dn.c b/arch/ppc64/kernel/pci_dn.c index a86389d07d5..493bbe43f5b 100644 --- a/arch/ppc64/kernel/pci_dn.c +++ b/arch/ppc64/kernel/pci_dn.c @@ -30,8 +30,7 @@ #include <asm/prom.h> #include <asm/pci-bridge.h> #include <asm/pSeries_reconfig.h> - -#include "pci.h" +#include <asm/ppc-pci.h> /* * Traverse_func that inits the PCI fields of the device node. diff --git a/arch/ppc64/kernel/pci_iommu.c b/arch/ppc64/kernel/pci_iommu.c index 14647e09c9c..6c9dc67f59d 100644 --- a/arch/ppc64/kernel/pci_iommu.c +++ b/arch/ppc64/kernel/pci_iommu.c @@ -37,7 +37,7 @@ #include <asm/iommu.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> -#include "pci.h" +#include <asm/ppc-pci.h> #ifdef CONFIG_PPC_ISERIES #include <asm/iSeries/iSeries_pci.h> @@ -61,13 +61,7 @@ static inline struct iommu_table *devnode_table(struct device *dev) } else pdev = to_pci_dev(dev); -#ifdef CONFIG_PPC_ISERIES - return ISERIES_DEVNODE(pdev)->iommu_table; -#endif /* CONFIG_PPC_ISERIES */ - -#ifdef CONFIG_PPC_MULTIPLATFORM return PCI_DN(PCI_GET_DN(pdev))->iommu_table; -#endif /* CONFIG_PPC_MULTIPLATFORM */ } diff --git a/arch/ppc64/kernel/pmac_pci.c b/arch/ppc64/kernel/pmac_pci.c index 1f61aa4746e..f139fc03419 100644 --- a/arch/ppc64/kernel/pmac_pci.c +++ b/arch/ppc64/kernel/pmac_pci.c @@ -27,8 +27,8 @@ #include <asm/machdep.h> #include <asm/pmac_feature.h> #include <asm/iommu.h> +#include <asm/ppc-pci.h> -#include "pci.h" #include "pmac.h" #define DEBUG diff --git a/arch/ppc64/kernel/ppc_ksyms.c b/arch/ppc64/kernel/ppc_ksyms.c index 705742f4eec..84006e26342 100644 --- a/arch/ppc64/kernel/ppc_ksyms.c +++ b/arch/ppc64/kernel/ppc_ksyms.c @@ -19,7 +19,6 @@ #include <asm/hw_irq.h> #include <asm/abs_addr.h> #include <asm/cacheflush.h> -#include <asm/iSeries/HvCallSc.h> EXPORT_SYMBOL(strcpy); EXPORT_SYMBOL(strncpy); @@ -46,17 +45,6 @@ EXPORT_SYMBOL(__strnlen_user); EXPORT_SYMBOL(reloc_offset); -#ifdef CONFIG_PPC_ISERIES -EXPORT_SYMBOL(HvCall0); -EXPORT_SYMBOL(HvCall1); -EXPORT_SYMBOL(HvCall2); -EXPORT_SYMBOL(HvCall3); -EXPORT_SYMBOL(HvCall4); -EXPORT_SYMBOL(HvCall5); -EXPORT_SYMBOL(HvCall6); -EXPORT_SYMBOL(HvCall7); -#endif - EXPORT_SYMBOL(_insb); EXPORT_SYMBOL(_outsb); EXPORT_SYMBOL(_insw); @@ -77,14 +65,6 @@ EXPORT_SYMBOL(giveup_altivec); EXPORT_SYMBOL(__flush_icache_range); EXPORT_SYMBOL(flush_dcache_range); -#ifdef CONFIG_SMP -#ifdef CONFIG_PPC_ISERIES -EXPORT_SYMBOL(local_get_flags); -EXPORT_SYMBOL(local_irq_disable); -EXPORT_SYMBOL(local_irq_restore); -#endif -#endif - EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memmove); diff --git a/arch/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c index 4d920dd41dc..20361bcd8cf 100644 --- a/arch/ppc64/kernel/rtas_pci.c +++ b/arch/ppc64/kernel/rtas_pci.c @@ -39,8 +39,7 @@ #include <asm/iommu.h> #include <asm/rtas.h> #include <asm/mpic.h> - -#include "pci.h" +#include <asm/ppc-pci.h> /* RTAS tokens */ static int read_pci_config; diff --git a/arch/ppc64/kernel/rtc.c b/arch/ppc64/kernel/rtc.c index 6ff52bc6132..88ae13f81c4 100644 --- a/arch/ppc64/kernel/rtc.c +++ b/arch/ppc64/kernel/rtc.c @@ -43,11 +43,8 @@ #include <asm/time.h> #include <asm/rtas.h> -#include <asm/iSeries/mf.h> #include <asm/machdep.h> -extern int piranha_simulator; - /* * We sponge a minor off of the misc major. No need slurping * up another valuable major dev number for this. If you add @@ -265,40 +262,6 @@ static int rtc_read_proc(char *page, char **start, off_t off, return len; } -#ifdef CONFIG_PPC_ISERIES -/* - * Get the RTC from the virtual service processor - * This requires flowing LpEvents to the primary partition - */ -void iSeries_get_rtc_time(struct rtc_time *rtc_tm) -{ - if (piranha_simulator) - return; - - mf_get_rtc(rtc_tm); - rtc_tm->tm_mon--; -} - -/* - * Set the RTC in the virtual service processor - * This requires flowing LpEvents to the primary partition - */ -int iSeries_set_rtc_time(struct rtc_time *tm) -{ - mf_set_rtc(tm); - return 0; -} - -void iSeries_get_boot_time(struct rtc_time *tm) -{ - if ( piranha_simulator ) - return; - - mf_get_boot_rtc(tm); - tm->tm_mon -= 1; -} -#endif - #ifdef CONFIG_PPC_RTAS #define MAX_RTC_WAIT 5000 /* 5 sec */ #define RTAS_CLOCK_BUSY (-2) diff --git a/arch/ppc64/kernel/sys_ppc32.c b/arch/ppc64/kernel/sys_ppc32.c index e93c1345891..1cacf61f9c9 100644 --- a/arch/ppc64/kernel/sys_ppc32.c +++ b/arch/ppc64/kernel/sys_ppc32.c @@ -53,8 +53,7 @@ #include <asm/time.h> #include <asm/mmu_context.h> #include <asm/systemcfg.h> - -#include "pci.h" +#include <asm/ppc-pci.h> /* readdir & getdents */ #define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de))) diff --git a/arch/ppc64/kernel/u3_iommu.c b/arch/ppc64/kernel/u3_iommu.c index df9c775f495..fba871a1bda 100644 --- a/arch/ppc64/kernel/u3_iommu.c +++ b/arch/ppc64/kernel/u3_iommu.c @@ -45,8 +45,7 @@ #include <asm/cacheflush.h> #include <asm/lmb.h> #include <asm/dart.h> - -#include "pci.h" +#include <asm/ppc-pci.h> extern int iommu_force_on; diff --git a/arch/ppc64/kernel/viopath.c b/arch/ppc64/kernel/viopath.c deleted file mode 100644 index 2a6c4f01c45..00000000000 --- a/arch/ppc64/kernel/viopath.c +++ /dev/null @@ -1,673 +0,0 @@ -/* -*- linux-c -*- - * arch/ppc64/kernel/viopath.c - * - * iSeries Virtual I/O Message Path code - * - * Authors: Dave Boutcher <boutcher@us.ibm.com> - * Ryan Arnold <ryanarn@us.ibm.com> - * Colin Devilbiss <devilbis@us.ibm.com> - * - * (C) Copyright 2000-2003 IBM Corporation - * - * This code is used by the iSeries virtual disk, cd, - * tape, and console to communicate with OS/400 in another - * partition. - * - * 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) anyu 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/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/vmalloc.h> -#include <linux/string.h> -#include <linux/proc_fs.h> -#include <linux/dma-mapping.h> -#include <linux/wait.h> -#include <linux/seq_file.h> -#include <linux/smp_lock.h> -#include <linux/interrupt.h> - -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/iSeries/HvTypes.h> -#include <asm/iSeries/ItExtVpdPanel.h> -#include <asm/iSeries/HvLpEvent.h> -#include <asm/iSeries/HvLpConfig.h> -#include <asm/iSeries/mf.h> -#include <asm/iSeries/vio.h> - -/* Status of the path to each other partition in the system. - * This is overkill, since we will only ever establish connections - * to our hosting partition and the primary partition on the system. - * But this allows for other support in the future. - */ -static struct viopathStatus { - int isOpen; /* Did we open the path? */ - int isActive; /* Do we have a mon msg outstanding */ - int users[VIO_MAX_SUBTYPES]; - HvLpInstanceId mSourceInst; - HvLpInstanceId mTargetInst; - int numberAllocated; -} viopathStatus[HVMAXARCHITECTEDLPS]; - -static DEFINE_SPINLOCK(statuslock); - -/* - * For each kind of event we allocate a buffer that is - * guaranteed not to cross a page boundary - */ -static unsigned char event_buffer[VIO_MAX_SUBTYPES * 256] __page_aligned; -static atomic_t event_buffer_available[VIO_MAX_SUBTYPES]; -static int event_buffer_initialised; - -static void handleMonitorEvent(struct HvLpEvent *event); - -/* - * We use this structure to handle asynchronous responses. The caller - * blocks on the semaphore and the handler posts the semaphore. However, - * if system_state is not SYSTEM_RUNNING, then wait_atomic is used ... - */ -struct alloc_parms { - struct semaphore sem; - int number; - atomic_t wait_atomic; - int used_wait_atomic; -}; - -/* Put a sequence number in each mon msg. The value is not - * important. Start at something other than 0 just for - * readability. wrapping this is ok. - */ -static u8 viomonseq = 22; - -/* Our hosting logical partition. We get this at startup - * time, and different modules access this variable directly. - */ -HvLpIndex viopath_hostLp = HvLpIndexInvalid; -EXPORT_SYMBOL(viopath_hostLp); -HvLpIndex viopath_ourLp = HvLpIndexInvalid; -EXPORT_SYMBOL(viopath_ourLp); - -/* For each kind of incoming event we set a pointer to a - * routine to call. - */ -static vio_event_handler_t *vio_handler[VIO_MAX_SUBTYPES]; - -#define VIOPATH_KERN_WARN KERN_WARNING "viopath: " -#define VIOPATH_KERN_INFO KERN_INFO "viopath: " - -static int proc_viopath_show(struct seq_file *m, void *v) -{ - char *buf; - u16 vlanMap; - dma_addr_t handle; - HvLpEvent_Rc hvrc; - DECLARE_MUTEX_LOCKED(Semaphore); - - buf = kmalloc(PAGE_SIZE, GFP_KERNEL); - if (!buf) - return 0; - memset(buf, 0, PAGE_SIZE); - - handle = dma_map_single(iSeries_vio_dev, buf, PAGE_SIZE, - DMA_FROM_DEVICE); - - hvrc = HvCallEvent_signalLpEventFast(viopath_hostLp, - HvLpEvent_Type_VirtualIo, - viomajorsubtype_config | vioconfigget, - HvLpEvent_AckInd_DoAck, HvLpEvent_AckType_ImmediateAck, - viopath_sourceinst(viopath_hostLp), - viopath_targetinst(viopath_hostLp), - (u64)(unsigned long)&Semaphore, VIOVERSION << 16, - ((u64)handle) << 32, PAGE_SIZE, 0, 0); - - if (hvrc != HvLpEvent_Rc_Good) - printk(VIOPATH_KERN_WARN "hv error on op %d\n", (int)hvrc); - - down(&Semaphore); - - vlanMap = HvLpConfig_getVirtualLanIndexMap(); - - buf[PAGE_SIZE-1] = '\0'; - seq_printf(m, "%s", buf); - seq_printf(m, "AVAILABLE_VETH=%x\n", vlanMap); - seq_printf(m, "SRLNBR=%c%c%c%c%c%c%c\n", - e2a(xItExtVpdPanel.mfgID[2]), - e2a(xItExtVpdPanel.mfgID[3]), - e2a(xItExtVpdPanel.systemSerial[1]), - e2a(xItExtVpdPanel.systemSerial[2]), - e2a(xItExtVpdPanel.systemSerial[3]), - e2a(xItExtVpdPanel.systemSerial[4]), - e2a(xItExtVpdPanel.systemSerial[5])); - - dma_unmap_single(iSeries_vio_dev, handle, PAGE_SIZE, DMA_FROM_DEVICE); - kfree(buf); - - return 0; -} - -static int proc_viopath_open(struct inode *inode, struct file *file) -{ - return single_open(file, proc_viopath_show, NULL); -} - -static struct file_operations proc_viopath_operations = { - .open = proc_viopath_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int __init vio_proc_init(void) -{ - struct proc_dir_entry *e; - - e = create_proc_entry("iSeries/config", 0, NULL); - if (e) - e->proc_fops = &proc_viopath_operations; - - return 0; -} -__initcall(vio_proc_init); - -/* See if a given LP is active. Allow for invalid lps to be passed in - * and just return invalid - */ -int viopath_isactive(HvLpIndex lp) -{ - if (lp == HvLpIndexInvalid) - return 0; - if (lp < HVMAXARCHITECTEDLPS) - return viopathStatus[lp].isActive; - else - return 0; -} -EXPORT_SYMBOL(viopath_isactive); - -/* - * We cache the source and target instance ids for each - * partition. - */ -HvLpInstanceId viopath_sourceinst(HvLpIndex lp) -{ - return viopathStatus[lp].mSourceInst; -} -EXPORT_SYMBOL(viopath_sourceinst); - -HvLpInstanceId viopath_targetinst(HvLpIndex lp) -{ - return viopathStatus[lp].mTargetInst; -} -EXPORT_SYMBOL(viopath_targetinst); - -/* - * Send a monitor message. This is a message with the acknowledge - * bit on that the other side will NOT explicitly acknowledge. When - * the other side goes down, the hypervisor will acknowledge any - * outstanding messages....so we will know when the other side dies. - */ -static void sendMonMsg(HvLpIndex remoteLp) -{ - HvLpEvent_Rc hvrc; - - viopathStatus[remoteLp].mSourceInst = - HvCallEvent_getSourceLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].mTargetInst = - HvCallEvent_getTargetLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - - /* - * Deliberately ignore the return code here. if we call this - * more than once, we don't care. - */ - vio_setHandler(viomajorsubtype_monitor, handleMonitorEvent); - - hvrc = HvCallEvent_signalLpEventFast(remoteLp, HvLpEvent_Type_VirtualIo, - viomajorsubtype_monitor, HvLpEvent_AckInd_DoAck, - HvLpEvent_AckType_DeferredAck, - viopathStatus[remoteLp].mSourceInst, - viopathStatus[remoteLp].mTargetInst, - viomonseq++, 0, 0, 0, 0, 0); - - if (hvrc == HvLpEvent_Rc_Good) - viopathStatus[remoteLp].isActive = 1; - else { - printk(VIOPATH_KERN_WARN "could not connect to partition %d\n", - remoteLp); - viopathStatus[remoteLp].isActive = 0; - } -} - -static void handleMonitorEvent(struct HvLpEvent *event) -{ - HvLpIndex remoteLp; - int i; - - /* - * This handler is _also_ called as part of the loop - * at the end of this routine, so it must be able to - * ignore NULL events... - */ - if (!event) - return; - - /* - * First see if this is just a normal monitor message from the - * other partition - */ - if (event->xFlags.xFunction == HvLpEvent_Function_Int) { - remoteLp = event->xSourceLp; - if (!viopathStatus[remoteLp].isActive) - sendMonMsg(remoteLp); - return; - } - - /* - * This path is for an acknowledgement; the other partition - * died - */ - remoteLp = event->xTargetLp; - if ((event->xSourceInstanceId != viopathStatus[remoteLp].mSourceInst) || - (event->xTargetInstanceId != viopathStatus[remoteLp].mTargetInst)) { - printk(VIOPATH_KERN_WARN "ignoring ack....mismatched instances\n"); - return; - } - - printk(VIOPATH_KERN_WARN "partition %d ended\n", remoteLp); - - viopathStatus[remoteLp].isActive = 0; - - /* - * For each active handler, pass them a NULL - * message to indicate that the other partition - * died - */ - for (i = 0; i < VIO_MAX_SUBTYPES; i++) { - if (vio_handler[i] != NULL) - (*vio_handler[i])(NULL); - } -} - -int vio_setHandler(int subtype, vio_event_handler_t *beh) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - if (vio_handler[subtype] != NULL) - return -EBUSY; - vio_handler[subtype] = beh; - return 0; -} -EXPORT_SYMBOL(vio_setHandler); - -int vio_clearHandler(int subtype) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - if (vio_handler[subtype] == NULL) - return -EAGAIN; - vio_handler[subtype] = NULL; - return 0; -} -EXPORT_SYMBOL(vio_clearHandler); - -static void handleConfig(struct HvLpEvent *event) -{ - if (!event) - return; - if (event->xFlags.xFunction == HvLpEvent_Function_Int) { - printk(VIOPATH_KERN_WARN - "unexpected config request from partition %d", - event->xSourceLp); - - if ((event->xFlags.xFunction == HvLpEvent_Function_Int) && - (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - up((struct semaphore *)event->xCorrelationToken); -} - -/* - * Initialization of the hosting partition - */ -void vio_set_hostlp(void) -{ - /* - * If this has already been set then we DON'T want to either change - * it or re-register the proc file system - */ - if (viopath_hostLp != HvLpIndexInvalid) - return; - - /* - * Figure out our hosting partition. This isn't allowed to change - * while we're active - */ - viopath_ourLp = HvLpConfig_getLpIndex(); - viopath_hostLp = HvLpConfig_getHostingLpIndex(viopath_ourLp); - - if (viopath_hostLp != HvLpIndexInvalid) - vio_setHandler(viomajorsubtype_config, handleConfig); -} -EXPORT_SYMBOL(vio_set_hostlp); - -static void vio_handleEvent(struct HvLpEvent *event, struct pt_regs *regs) -{ - HvLpIndex remoteLp; - int subtype = (event->xSubtype & VIOMAJOR_SUBTYPE_MASK) - >> VIOMAJOR_SUBTYPE_SHIFT; - - if (event->xFlags.xFunction == HvLpEvent_Function_Int) { - remoteLp = event->xSourceLp; - /* - * The isActive is checked because if the hosting partition - * went down and came back up it would not be active but it - * would have different source and target instances, in which - * case we'd want to reset them. This case really protects - * against an unauthorized active partition sending interrupts - * or acks to this linux partition. - */ - if (viopathStatus[remoteLp].isActive - && (event->xSourceInstanceId != - viopathStatus[remoteLp].mTargetInst)) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "int msg rcvd, source inst (%d) doesnt match (%d)\n", - viopathStatus[remoteLp].mTargetInst, - event->xSourceInstanceId); - return; - } - - if (viopathStatus[remoteLp].isActive - && (event->xTargetInstanceId != - viopathStatus[remoteLp].mSourceInst)) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "int msg rcvd, target inst (%d) doesnt match (%d)\n", - viopathStatus[remoteLp].mSourceInst, - event->xTargetInstanceId); - return; - } - } else { - remoteLp = event->xTargetLp; - if (event->xSourceInstanceId != - viopathStatus[remoteLp].mSourceInst) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "ack msg rcvd, source inst (%d) doesnt match (%d)\n", - viopathStatus[remoteLp].mSourceInst, - event->xSourceInstanceId); - return; - } - - if (event->xTargetInstanceId != - viopathStatus[remoteLp].mTargetInst) { - printk(VIOPATH_KERN_WARN - "message from invalid partition. " - "viopath: ack msg rcvd, target inst (%d) doesnt match (%d)\n", - viopathStatus[remoteLp].mTargetInst, - event->xTargetInstanceId); - return; - } - } - - if (vio_handler[subtype] == NULL) { - printk(VIOPATH_KERN_WARN - "unexpected virtual io event subtype %d from partition %d\n", - event->xSubtype, remoteLp); - /* No handler. Ack if necessary */ - if ((event->xFlags.xFunction == HvLpEvent_Function_Int) && - (event->xFlags.xAckInd == HvLpEvent_AckInd_DoAck)) { - event->xRc = HvLpEvent_Rc_InvalidSubtype; - HvCallEvent_ackLpEvent(event); - } - return; - } - - /* This innocuous little line is where all the real work happens */ - (*vio_handler[subtype])(event); -} - -static void viopath_donealloc(void *parm, int number) -{ - struct alloc_parms *parmsp = parm; - - parmsp->number = number; - if (parmsp->used_wait_atomic) - atomic_set(&parmsp->wait_atomic, 0); - else - up(&parmsp->sem); -} - -static int allocateEvents(HvLpIndex remoteLp, int numEvents) -{ - struct alloc_parms parms; - - if (system_state != SYSTEM_RUNNING) { - parms.used_wait_atomic = 1; - atomic_set(&parms.wait_atomic, 1); - } else { - parms.used_wait_atomic = 0; - init_MUTEX_LOCKED(&parms.sem); - } - mf_allocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo, 250, /* It would be nice to put a real number here! */ - numEvents, &viopath_donealloc, &parms); - if (system_state != SYSTEM_RUNNING) { - while (atomic_read(&parms.wait_atomic)) - mb(); - } else - down(&parms.sem); - return parms.number; -} - -int viopath_open(HvLpIndex remoteLp, int subtype, int numReq) -{ - int i; - unsigned long flags; - int tempNumAllocated; - - if ((remoteLp >= HVMAXARCHITECTEDLPS) || (remoteLp == HvLpIndexInvalid)) - return -EINVAL; - - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - - spin_lock_irqsave(&statuslock, flags); - - if (!event_buffer_initialised) { - for (i = 0; i < VIO_MAX_SUBTYPES; i++) - atomic_set(&event_buffer_available[i], 1); - event_buffer_initialised = 1; - } - - viopathStatus[remoteLp].users[subtype]++; - - if (!viopathStatus[remoteLp].isOpen) { - viopathStatus[remoteLp].isOpen = 1; - HvCallEvent_openLpEventPath(remoteLp, HvLpEvent_Type_VirtualIo); - - /* - * Don't hold the spinlock during an operation that - * can sleep. - */ - spin_unlock_irqrestore(&statuslock, flags); - tempNumAllocated = allocateEvents(remoteLp, 1); - spin_lock_irqsave(&statuslock, flags); - - viopathStatus[remoteLp].numberAllocated += tempNumAllocated; - - if (viopathStatus[remoteLp].numberAllocated == 0) { - HvCallEvent_closeLpEventPath(remoteLp, - HvLpEvent_Type_VirtualIo); - - spin_unlock_irqrestore(&statuslock, flags); - return -ENOMEM; - } - - viopathStatus[remoteLp].mSourceInst = - HvCallEvent_getSourceLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].mTargetInst = - HvCallEvent_getTargetLpInstanceId(remoteLp, - HvLpEvent_Type_VirtualIo); - HvLpEvent_registerHandler(HvLpEvent_Type_VirtualIo, - &vio_handleEvent); - sendMonMsg(remoteLp); - printk(VIOPATH_KERN_INFO "opening connection to partition %d, " - "setting sinst %d, tinst %d\n", - remoteLp, viopathStatus[remoteLp].mSourceInst, - viopathStatus[remoteLp].mTargetInst); - } - - spin_unlock_irqrestore(&statuslock, flags); - tempNumAllocated = allocateEvents(remoteLp, numReq); - spin_lock_irqsave(&statuslock, flags); - viopathStatus[remoteLp].numberAllocated += tempNumAllocated; - spin_unlock_irqrestore(&statuslock, flags); - - return 0; -} -EXPORT_SYMBOL(viopath_open); - -int viopath_close(HvLpIndex remoteLp, int subtype, int numReq) -{ - unsigned long flags; - int i; - int numOpen; - struct alloc_parms parms; - - if ((remoteLp >= HVMAXARCHITECTEDLPS) || (remoteLp == HvLpIndexInvalid)) - return -EINVAL; - - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return -EINVAL; - - spin_lock_irqsave(&statuslock, flags); - /* - * If the viopath_close somehow gets called before a - * viopath_open it could decrement to -1 which is a non - * recoverable state so we'll prevent this from - * happening. - */ - if (viopathStatus[remoteLp].users[subtype] > 0) - viopathStatus[remoteLp].users[subtype]--; - - spin_unlock_irqrestore(&statuslock, flags); - - parms.used_wait_atomic = 0; - init_MUTEX_LOCKED(&parms.sem); - mf_deallocate_lp_events(remoteLp, HvLpEvent_Type_VirtualIo, - numReq, &viopath_donealloc, &parms); - down(&parms.sem); - - spin_lock_irqsave(&statuslock, flags); - for (i = 0, numOpen = 0; i < VIO_MAX_SUBTYPES; i++) - numOpen += viopathStatus[remoteLp].users[i]; - - if ((viopathStatus[remoteLp].isOpen) && (numOpen == 0)) { - printk(VIOPATH_KERN_INFO "closing connection to partition %d", - remoteLp); - - HvCallEvent_closeLpEventPath(remoteLp, - HvLpEvent_Type_VirtualIo); - viopathStatus[remoteLp].isOpen = 0; - viopathStatus[remoteLp].isActive = 0; - - for (i = 0; i < VIO_MAX_SUBTYPES; i++) - atomic_set(&event_buffer_available[i], 0); - event_buffer_initialised = 0; - } - spin_unlock_irqrestore(&statuslock, flags); - return 0; -} -EXPORT_SYMBOL(viopath_close); - -void *vio_get_event_buffer(int subtype) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) - return NULL; - - if (atomic_dec_if_positive(&event_buffer_available[subtype]) == 0) - return &event_buffer[subtype * 256]; - else - return NULL; -} -EXPORT_SYMBOL(vio_get_event_buffer); - -void vio_free_event_buffer(int subtype, void *buffer) -{ - subtype = subtype >> VIOMAJOR_SUBTYPE_SHIFT; - if ((subtype < 0) || (subtype >= VIO_MAX_SUBTYPES)) { - printk(VIOPATH_KERN_WARN - "unexpected subtype %d freeing event buffer\n", subtype); - return; - } - - if (atomic_read(&event_buffer_available[subtype]) != 0) { - printk(VIOPATH_KERN_WARN - "freeing unallocated event buffer, subtype %d\n", - subtype); - return; - } - - if (buffer != &event_buffer[subtype * 256]) { - printk(VIOPATH_KERN_WARN - "freeing invalid event buffer, subtype %d\n", subtype); - } - - atomic_set(&event_buffer_available[subtype], 1); -} -EXPORT_SYMBOL(vio_free_event_buffer); - -static const struct vio_error_entry vio_no_error = - { 0, 0, "Non-VIO Error" }; -static const struct vio_error_entry vio_unknown_error = - { 0, EIO, "Unknown Error" }; - -static const struct vio_error_entry vio_default_errors[] = { - {0x0001, EIO, "No Connection"}, - {0x0002, EIO, "No Receiver"}, - {0x0003, EIO, "No Buffer Available"}, - {0x0004, EBADRQC, "Invalid Message Type"}, - {0x0000, 0, NULL}, -}; - -const struct vio_error_entry *vio_lookup_rc( - const struct vio_error_entry *local_table, u16 rc) -{ - const struct vio_error_entry *cur; - - if (!rc) - return &vio_no_error; - if (local_table) - for (cur = local_table; cur->rc; ++cur) - if (cur->rc == rc) - return cur; - for (cur = vio_default_errors; cur->rc; ++cur) - if (cur->rc == rc) - return cur; - return &vio_unknown_error; -} -EXPORT_SYMBOL(vio_lookup_rc); |