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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc64/kernel/LparData.c
Linux-2.6.12-rc2
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!
Diffstat (limited to 'arch/ppc64/kernel/LparData.c')
-rw-r--r--arch/ppc64/kernel/LparData.c250
1 files changed, 250 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/LparData.c b/arch/ppc64/kernel/LparData.c
new file mode 100644
index 00000000000..badc5a44361
--- /dev/null
+++ b/arch/ppc64/kernel/LparData.c
@@ -0,0 +1,250 @@
+/*
+ * 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 LpQueue is used to pass event data from the hypervisor to
+ * the partition. This is where I/O interrupt events are communicated.
+ */
+
+/* May be filled in by the hypervisor so cannot end up in the BSS */
+struct ItLpQueue xItLpQueue __attribute__((__section__(".data")));
+
+
+/* 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 = 0x4800, /* offset of LparMap within loadarea (see head.S) */
+ .xTagsMode = 1, /* tags inactive */
+ .xAddressSize = 0, /* 64 bit */
+ .xNoSharedProcs = 0, /* shared processors */
+ .xNoHMT = 0, /* HMT allowed */
+ .xRsvd2 = 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 },
+};
+
+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 ItLpQueue),/* 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 */
+ &xItLpQueue, /* 23 Lp Queue */
+ 0,0
+ }
+};
+
+struct msChunks msChunks;
+EXPORT_SYMBOL(msChunks);
+
+/* Depending on whether this is called from iSeries or pSeries setup
+ * code, the location of the msChunks struct may or may not have
+ * to be reloc'd, so we force the caller to do that for us by passing
+ * in a pointer to the structure.
+ */
+unsigned long
+msChunks_alloc(unsigned long mem, unsigned long num_chunks, unsigned long chunk_size)
+{
+ unsigned long offset = reloc_offset();
+ struct msChunks *_msChunks = PTRRELOC(&msChunks);
+
+ _msChunks->num_chunks = num_chunks;
+ _msChunks->chunk_size = chunk_size;
+ _msChunks->chunk_shift = __ilog2(chunk_size);
+ _msChunks->chunk_mask = (1UL<<_msChunks->chunk_shift)-1;
+
+ mem = _ALIGN(mem, sizeof(msChunks_entry));
+ _msChunks->abs = (msChunks_entry *)(mem + offset);
+ mem += num_chunks * sizeof(msChunks_entry);
+
+ return mem;
+}