arch/powerpc/platforms/iseries/lpardata.c - linux - Git at Google

 /*
  * 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/abs_addr.h>
 #include <asm/iseries/it_lp_naca.h>
 #include <asm/lppaca.h>
 #include <asm/iseries/it_lp_reg_save.h>
 #include <asm/paca.h>
 #include <asm/iseries/lpar_map.h>
 #include <asm/iseries/it_exp_vpd_panel.h>
 #include <asm/iseries/it_lp_queue.h>

 #include "naca.h"
 #include "vpd_areas.h"
 #include "spcomm_area.h"
 #include "ipl_parms.h"
 #include "processor_vpd.h"
 #include "release_data.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
 	}
 };

 struct ItLpRegSave iseries_reg_save[] = {
 	[0 ... (NR_CPUS-1)] = {
 		.xDesc = 0xd397d9e2,	/* "LpRS" */
 		.xSize = sizeof(struct ItLpRegSave),
 	},
 };
	/*
	* 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/abs_addr.h>
	#include <asm/iseries/it_lp_naca.h>
	#include <asm/lppaca.h>
	#include <asm/iseries/it_lp_reg_save.h>
	#include <asm/paca.h>
	#include <asm/iseries/lpar_map.h>
	#include <asm/iseries/it_exp_vpd_panel.h>
	#include <asm/iseries/it_lp_queue.h>

	#include "naca.h"
	#include "vpd_areas.h"
	#include "spcomm_area.h"
	#include "ipl_parms.h"
	#include "processor_vpd.h"
	#include "release_data.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
	}
	};

	struct ItLpRegSave iseries_reg_save[] = {
	[0 ... (NR_CPUS-1)] = {
	.xDesc = 0xd397d9e2, /* "LpRS" */
	.xSize = sizeof(struct ItLpRegSave),
	},
	};