LparData.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:8k
- /*
- * 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 <asm/types.h>
- #include <asm/page.h>
- #include <stddef.h>
- #include <linux/threads.h>
- #include <asm/processor.h>
- #include <asm/ptrace.h>
- #include <asm/naca.h>
- #include <asm/abs_addr.h>
- #include <asm/bitops.h>
- #include <asm/iSeries/ItLpNaca.h>
- #include <asm/iSeries/ItLpPaca.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>
- extern char _start_boltedStacks[];
- /* 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.
- */
- extern struct ItVpdAreas itVpdAreas;
- /* The LpQueue is used to pass event data from the hypervisor to
- * the partition. This is where I/O interrupt events are communicated.
- * The ItLpQueue must be initialized (even though only to all zeros)
- * If it were uninitialized (in .bss) it would get zeroed after the
- * kernel gets control. The hypervisor will have filled in some fields
- * before the kernel gets control. By initializing it we keep it out
- * of the .bss
- */
- struct ItLpQueue xItLpQueue = {};
- /* The HvReleaseData is the root of the information shared between
- * the hypervisor and Linux.
- */
- struct HvReleaseData hvReleaseData = {
- 0xc8a5d9c4, /* desc = "HvRD" ebcdic */
- sizeof(struct HvReleaseData),
- offsetof(struct naca_struct, xItVpdAreas),
- (struct naca_struct *)(KERNELBASE+0x4000), /* 64-bit Naca address */
- 0x6000, /* offset of LparMap within loadarea (see head.S) */
- 0,
- 1, /* tags inactive */
- 0, /* 64 bit */
- 0, /* shared processors */
- 0, /* HMT allowed */
- 6, /* TEMP: This allows non-GA driver */
- 4, /* We are v5r2m0 */
- 3, /* Min supported PLIC = v5r1m0 */
- 3, /* Min usuable PLIC = v5r1m0 */
- { 0xd3, 0x89, 0x95, 0xa4, /* "Linux 2.4 "*/
- 0xa7, 0x40, 0xf2, 0x4b,
- 0xf4, 0x4b, 0xf6, 0xf4 },
- {0}
- };
- extern void SystemReset_Iseries(void);
- extern void MachineCheck_Iseries(void);
- extern void DataAccess_Iseries(void);
- extern void InstructionAccess_Iseries(void);
- extern void HardwareInterrupt_Iseries(void);
- extern void Alignment_Iseries(void);
- extern void ProgramCheck_Iseries(void);
- extern void FPUnavailable_Iseries(void);
- extern void Decrementer_Iseries(void);
- extern void Trap_0a_Iseries(void);
- extern void Trap_0b_Iseries(void);
- extern void SystemCall_Iseries(void);
- extern void SingleStep_Iseries(void);
- extern void Trap_0e_Iseries(void);
- extern void PerformanceMonitor_Iseries(void);
- extern void DataAccessSLB_Iseries(void);
- extern void InstructionAccessSLB_Iseries(void);
-
- struct ItLpNaca itLpNaca = {
- 0xd397d581, /* desc = "LpNa" ebcdic */
- 0x0400, /* size of ItLpNaca */
- 0x0300, 19, /* offset to int array, # ents */
- 0, 0, 0, /* Part # of primary, serv, me */
- 0, 0x100, /* # of LP queues, offset */
- 0, 0, 0, /* Piranha stuff */
- { 0,0,0,0,0 }, /* reserved */
- 0,0,0,0,0,0,0, /* stuff */
- { 0,0,0,0,0 }, /* reserved */
- 0, /* reserved */
- 0, /* VRM index of PLIC */
- 0, 0, /* min supported, compat SLIC */
- 0, /* 64-bit addr of load area */
- 0, /* chunks for load area */
- 0, 0, /* PASE mask, seg table */
- { 0 }, /* 64 reserved bytes */
- { 0 }, /* 128 reserved bytes */
- { 0 }, /* Old LP Queue */
- { 0 }, /* 384 reserved bytes */
- {
- (u64)SystemReset_Iseries, /* 0x100 System Reset */
- (u64)MachineCheck_Iseries, /* 0x200 Machine Check */
- (u64)DataAccess_Iseries, /* 0x300 Data Access */
- (u64)InstructionAccess_Iseries, /* 0x400 Instruction Access */
- (u64)HardwareInterrupt_Iseries, /* 0x500 External */
- (u64)Alignment_Iseries, /* 0x600 Alignment */
- (u64)ProgramCheck_Iseries, /* 0x700 Program Check */
- (u64)FPUnavailable_Iseries, /* 0x800 FP Unavailable */
- (u64)Decrementer_Iseries, /* 0x900 Decrementer */
- (u64)Trap_0a_Iseries, /* 0xa00 Trap 0A */
- (u64)Trap_0b_Iseries, /* 0xb00 Trap 0B */
- (u64)SystemCall_Iseries, /* 0xc00 System Call */
- (u64)SingleStep_Iseries, /* 0xd00 Single Step */
- (u64)Trap_0e_Iseries, /* 0xe00 Trap 0E */
- (u64)PerformanceMonitor_Iseries,/* 0xf00 Performance Monitor */
- 0, /* int 0x1000 */
- 0, /* int 0x1010 */
- 0, /* int 0x1020 CPU ctls */
- (u64)HardwareInterrupt_Iseries, /* SC Ret Hdlr */
- (u64)DataAccessSLB_Iseries, /* 0x380 D-SLB */
- (u64)InstructionAccessSLB_Iseries /* 0x480 I-SLB */
- }
- };
- struct ItIplParmsReal xItIplParmsReal = {};
- struct ItExtVpdPanel xItExtVpdPanel = {};
- #define maxPhysicalProcessors 32
- struct IoHriProcessorVpd xIoHriProcessorVpd[maxPhysicalProcessors] = {
- {
- xInstCacheOperandSize: 32,
- xDataCacheOperandSize: 32,
- xProcFreq: 50000000,
- xTimeBaseFreq: 50000000,
- xPVR: 0x3600
- }
- };
-
- u64 xMsVpd[3400] = {}; /* Space for Main Store Vpd 27,200 bytes */
- u64 xRecoveryLogBuffer[32] = {}; /* Space for Recovery Log Buffer */
- struct SpCommArea xSpCommArea = {
- 0xE2D7C3C2,
- 1,
- {0},
- 0, 0, 0, 0, {0}
- };
- struct ItVpdAreas itVpdAreas = {
- 0xc9a3e5c1, /* "ItVA" */
- sizeof( struct ItVpdAreas ),
- 0, 0,
- 26, /* # VPD array entries */
- 10, /* # DMA array entries */
- MAX_PROCESSORS*2, maxPhysicalProcessors, /* Max logical, physical procs */
- offsetof(struct ItVpdAreas,xPlicDmaToks),/* offset to DMA toks */
- offsetof(struct ItVpdAreas,xSlicVpdAdrs),/* offset to VPD addrs */
- offsetof(struct ItVpdAreas,xPlicDmaLens),/* offset to DMA lens */
- offsetof(struct ItVpdAreas,xSlicVpdLens),/* offset to VPD lens */
- 0, /* max slot labels */
- 1, /* max LP queues */
- {0}, {0}, /* reserved */
- {0}, /* DMA lengths */
- {0}, /* DMA tokens */
- { /* 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 */
- },
- { /* 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 = {0, 0, 0, 0, NULL};
- /* 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;
- }