1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
250 lines
9.1 KiB
C
250 lines
9.1 KiB
C
/*
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* Copyright 2001 Mike Corrigan, IBM Corp
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/config.h>
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#include <linux/types.h>
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#include <linux/threads.h>
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#include <linux/module.h>
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#include <linux/bitops.h>
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#include <asm/processor.h>
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#include <asm/ptrace.h>
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#include <asm/naca.h>
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#include <asm/abs_addr.h>
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#include <asm/iSeries/ItLpNaca.h>
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#include <asm/lppaca.h>
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#include <asm/iSeries/ItLpRegSave.h>
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#include <asm/paca.h>
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#include <asm/iSeries/HvReleaseData.h>
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#include <asm/iSeries/LparMap.h>
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#include <asm/iSeries/ItVpdAreas.h>
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#include <asm/iSeries/ItIplParmsReal.h>
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#include <asm/iSeries/ItExtVpdPanel.h>
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#include <asm/iSeries/ItLpQueue.h>
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#include <asm/iSeries/IoHriProcessorVpd.h>
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#include <asm/iSeries/ItSpCommArea.h>
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/* The LpQueue is used to pass event data from the hypervisor to
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* the partition. This is where I/O interrupt events are communicated.
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*/
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/* May be filled in by the hypervisor so cannot end up in the BSS */
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struct ItLpQueue xItLpQueue __attribute__((__section__(".data")));
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/* The HvReleaseData is the root of the information shared between
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* the hypervisor and Linux.
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*/
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struct HvReleaseData hvReleaseData = {
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.xDesc = 0xc8a5d9c4, /* "HvRD" ebcdic */
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.xSize = sizeof(struct HvReleaseData),
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.xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas),
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.xSlicNacaAddr = &naca, /* 64-bit Naca address */
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.xMsNucDataOffset = 0x4800, /* offset of LparMap within loadarea (see head.S) */
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.xTagsMode = 1, /* tags inactive */
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.xAddressSize = 0, /* 64 bit */
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.xNoSharedProcs = 0, /* shared processors */
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.xNoHMT = 0, /* HMT allowed */
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.xRsvd2 = 6, /* TEMP: This allows non-GA driver */
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.xVrmIndex = 4, /* We are v5r2m0 */
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.xMinSupportedPlicVrmIndex = 3, /* v5r1m0 */
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.xMinCompatablePlicVrmIndex = 3, /* v5r1m0 */
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.xVrmName = { 0xd3, 0x89, 0x95, 0xa4, /* "Linux 2.4.64" ebcdic */
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0xa7, 0x40, 0xf2, 0x4b,
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0xf4, 0x4b, 0xf6, 0xf4 },
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};
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extern void system_reset_iSeries(void);
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extern void machine_check_iSeries(void);
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extern void data_access_iSeries(void);
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extern void instruction_access_iSeries(void);
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extern void hardware_interrupt_iSeries(void);
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extern void alignment_iSeries(void);
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extern void program_check_iSeries(void);
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extern void fp_unavailable_iSeries(void);
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extern void decrementer_iSeries(void);
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extern void trap_0a_iSeries(void);
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extern void trap_0b_iSeries(void);
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extern void system_call_iSeries(void);
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extern void single_step_iSeries(void);
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extern void trap_0e_iSeries(void);
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extern void performance_monitor_iSeries(void);
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extern void data_access_slb_iSeries(void);
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extern void instruction_access_slb_iSeries(void);
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struct ItLpNaca itLpNaca = {
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.xDesc = 0xd397d581, /* "LpNa" ebcdic */
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.xSize = 0x0400, /* size of ItLpNaca */
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.xIntHdlrOffset = 0x0300, /* offset to int array */
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.xMaxIntHdlrEntries = 19, /* # ents */
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.xPrimaryLpIndex = 0, /* Part # of primary */
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.xServiceLpIndex = 0, /* Part # of serv */
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.xLpIndex = 0, /* Part # of me */
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.xMaxLpQueues = 0, /* # of LP queues */
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.xLpQueueOffset = 0x100, /* offset of start of LP queues */
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.xPirEnvironMode = 0, /* Piranha stuff */
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.xPirConsoleMode = 0,
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.xPirDasdMode = 0,
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.xLparInstalled = 0,
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.xSysPartitioned = 0,
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.xHwSyncedTBs = 0,
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.xIntProcUtilHmt = 0,
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.xSpVpdFormat = 0,
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.xIntProcRatio = 0,
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.xPlicVrmIndex = 0, /* VRM index of PLIC */
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.xMinSupportedSlicVrmInd = 0, /* min supported SLIC */
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.xMinCompatableSlicVrmInd = 0, /* min compat SLIC */
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.xLoadAreaAddr = 0, /* 64-bit addr of load area */
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.xLoadAreaChunks = 0, /* chunks for load area */
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.xPaseSysCallCRMask = 0, /* PASE mask */
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.xSlicSegmentTablePtr = 0, /* seg table */
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.xOldLpQueue = { 0 }, /* Old LP Queue */
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.xInterruptHdlr = {
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(u64)system_reset_iSeries, /* 0x100 System Reset */
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(u64)machine_check_iSeries, /* 0x200 Machine Check */
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(u64)data_access_iSeries, /* 0x300 Data Access */
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(u64)instruction_access_iSeries, /* 0x400 Instruction Access */
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(u64)hardware_interrupt_iSeries, /* 0x500 External */
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(u64)alignment_iSeries, /* 0x600 Alignment */
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(u64)program_check_iSeries, /* 0x700 Program Check */
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(u64)fp_unavailable_iSeries, /* 0x800 FP Unavailable */
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(u64)decrementer_iSeries, /* 0x900 Decrementer */
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(u64)trap_0a_iSeries, /* 0xa00 Trap 0A */
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(u64)trap_0b_iSeries, /* 0xb00 Trap 0B */
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(u64)system_call_iSeries, /* 0xc00 System Call */
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(u64)single_step_iSeries, /* 0xd00 Single Step */
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(u64)trap_0e_iSeries, /* 0xe00 Trap 0E */
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(u64)performance_monitor_iSeries,/* 0xf00 Performance Monitor */
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0, /* int 0x1000 */
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0, /* int 0x1010 */
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0, /* int 0x1020 CPU ctls */
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(u64)hardware_interrupt_iSeries, /* SC Ret Hdlr */
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(u64)data_access_slb_iSeries, /* 0x380 D-SLB */
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(u64)instruction_access_slb_iSeries /* 0x480 I-SLB */
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}
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};
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EXPORT_SYMBOL(itLpNaca);
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/* May be filled in by the hypervisor so cannot end up in the BSS */
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struct ItIplParmsReal xItIplParmsReal __attribute__((__section__(".data")));
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/* May be filled in by the hypervisor so cannot end up in the BSS */
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struct ItExtVpdPanel xItExtVpdPanel __attribute__((__section__(".data")));
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EXPORT_SYMBOL(xItExtVpdPanel);
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#define maxPhysicalProcessors 32
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struct IoHriProcessorVpd xIoHriProcessorVpd[maxPhysicalProcessors] = {
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{
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.xInstCacheOperandSize = 32,
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.xDataCacheOperandSize = 32,
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.xProcFreq = 50000000,
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.xTimeBaseFreq = 50000000,
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.xPVR = 0x3600
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}
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};
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/* Space for Main Store Vpd 27,200 bytes */
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/* May be filled in by the hypervisor so cannot end up in the BSS */
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u64 xMsVpd[3400] __attribute__((__section__(".data")));
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/* Space for Recovery Log Buffer */
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/* May be filled in by the hypervisor so cannot end up in the BSS */
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u64 xRecoveryLogBuffer[32] __attribute__((__section__(".data")));
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struct SpCommArea xSpCommArea = {
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.xDesc = 0xE2D7C3C2,
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.xFormat = 1,
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};
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/* The LparMap data is now located at offset 0x6000 in head.S
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* It was put there so that the HvReleaseData could address it
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* with a 32-bit offset as required by the iSeries hypervisor
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*
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* The Naca has a pointer to the ItVpdAreas. The hypervisor finds
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* the Naca via the HvReleaseData area. The HvReleaseData has the
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* offset into the Naca of the pointer to the ItVpdAreas.
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*/
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struct ItVpdAreas itVpdAreas = {
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.xSlicDesc = 0xc9a3e5c1, /* "ItVA" */
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.xSlicSize = sizeof(struct ItVpdAreas),
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.xSlicVpdEntries = ItVpdMaxEntries, /* # VPD array entries */
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.xSlicDmaEntries = ItDmaMaxEntries, /* # DMA array entries */
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.xSlicMaxLogicalProcs = NR_CPUS * 2, /* Max logical procs */
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.xSlicMaxPhysicalProcs = maxPhysicalProcessors, /* Max physical procs */
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.xSlicDmaToksOffset = offsetof(struct ItVpdAreas, xPlicDmaToks),
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.xSlicVpdAdrsOffset = offsetof(struct ItVpdAreas, xSlicVpdAdrs),
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.xSlicDmaLensOffset = offsetof(struct ItVpdAreas, xPlicDmaLens),
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.xSlicVpdLensOffset = offsetof(struct ItVpdAreas, xSlicVpdLens),
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.xSlicMaxSlotLabels = 0, /* max slot labels */
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.xSlicMaxLpQueues = 1, /* max LP queues */
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.xPlicDmaLens = { 0 }, /* DMA lengths */
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.xPlicDmaToks = { 0 }, /* DMA tokens */
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.xSlicVpdLens = { /* VPD lengths */
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0,0,0, /* 0 - 2 */
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sizeof(xItExtVpdPanel), /* 3 Extended VPD */
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sizeof(struct paca_struct), /* 4 length of Paca */
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0, /* 5 */
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sizeof(struct ItIplParmsReal),/* 6 length of IPL parms */
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26992, /* 7 length of MS VPD */
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0, /* 8 */
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sizeof(struct ItLpNaca),/* 9 length of LP Naca */
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0, /* 10 */
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256, /* 11 length of Recovery Log Buf */
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sizeof(struct SpCommArea), /* 12 length of SP Comm Area */
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0,0,0, /* 13 - 15 */
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sizeof(struct IoHriProcessorVpd),/* 16 length of Proc Vpd */
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0,0,0,0,0,0, /* 17 - 22 */
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sizeof(struct ItLpQueue),/* 23 length of Lp Queue */
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0,0 /* 24 - 25 */
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},
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.xSlicVpdAdrs = { /* VPD addresses */
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0,0,0, /* 0 - 2 */
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&xItExtVpdPanel, /* 3 Extended VPD */
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&paca[0], /* 4 first Paca */
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0, /* 5 */
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&xItIplParmsReal, /* 6 IPL parms */
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&xMsVpd, /* 7 MS Vpd */
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0, /* 8 */
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&itLpNaca, /* 9 LpNaca */
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0, /* 10 */
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&xRecoveryLogBuffer, /* 11 Recovery Log Buffer */
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&xSpCommArea, /* 12 SP Comm Area */
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0,0,0, /* 13 - 15 */
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&xIoHriProcessorVpd, /* 16 Proc Vpd */
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0,0,0,0,0,0, /* 17 - 22 */
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&xItLpQueue, /* 23 Lp Queue */
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0,0
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}
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};
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struct msChunks msChunks;
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EXPORT_SYMBOL(msChunks);
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/* Depending on whether this is called from iSeries or pSeries setup
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* code, the location of the msChunks struct may or may not have
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* to be reloc'd, so we force the caller to do that for us by passing
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* in a pointer to the structure.
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*/
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unsigned long
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msChunks_alloc(unsigned long mem, unsigned long num_chunks, unsigned long chunk_size)
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{
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unsigned long offset = reloc_offset();
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struct msChunks *_msChunks = PTRRELOC(&msChunks);
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_msChunks->num_chunks = num_chunks;
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_msChunks->chunk_size = chunk_size;
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_msChunks->chunk_shift = __ilog2(chunk_size);
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_msChunks->chunk_mask = (1UL<<_msChunks->chunk_shift)-1;
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mem = _ALIGN(mem, sizeof(msChunks_entry));
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_msChunks->abs = (msChunks_entry *)(mem + offset);
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mem += num_chunks * sizeof(msChunks_entry);
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return mem;
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}
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