[mirror_ubuntu-bionic-kernel.git] / arch / ppc64 / kernel / pacaData.c

/*
 * 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.
 */

#include <linux/config.h>
#include <linux/types.h>
#include <linux/threads.h>
#include <linux/module.h>

#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/page.h>

#include <asm/lppaca.h>
#include <asm/iSeries/ItLpQueue.h>
#include <asm/paca.h>

static union {
	struct systemcfg	data;
	u8			page[PAGE_SIZE];
} systemcfg_store __page_aligned;
struct systemcfg *systemcfg = &systemcfg_store.data;
EXPORT_SYMBOL(systemcfg);


/* This symbol is provided by the linker - let it fill in the paca
 * field correctly */
extern unsigned long __toc_start;

/* The Paca is an array with one entry per processor.  Each contains an 
 * lppaca, which contains the information shared between the
 * hypervisor and Linux.  Each also contains an ItLpRegSave area which
 * is used by the hypervisor to save registers.
 * On systems with hardware multi-threading, there are two threads
 * per processor.  The Paca array must contain an entry for each thread.
 * The VPD Areas will give a max logical processors = 2 * max physical
 * processors.  The processor VPD array needs one entry per physical
 * processor (not thread).
 */
#define PACA_INIT_COMMON(number, start, asrr, asrv)			    \
	.lock_token = 0x8000,						    \
	.paca_index = (number),		/* Paca Index */		    \
	.default_decr = 0x00ff0000,	/* Initial Decr */		    \
	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL,		    \
	.stab_real = (asrr), 		/* Real pointer to segment table */ \
	.stab_addr = (asrv),		/* Virt pointer to segment table */ \
	.cpu_start = (start),		/* Processor start */		    \
	.hw_cpu_id = 0xffff,						    \
	.lppaca = {							    \
		.desc = 0xd397d781,	/* "LpPa" */			    \
		.size = sizeof(struct lppaca),				    \
		.dyn_proc_status = 2,					    \
		.decr_val = 0x00ff0000,					    \
		.fpregs_in_use = 1,					    \
		.end_of_quantum = 0xfffffffffffffffful,			    \
		.slb_count = 64,					    \
		.vmxregs_in_use = 0,					    \
	},								    \

#ifdef CONFIG_PPC_ISERIES
#define PACA_INIT_ISERIES(number)					    \
	.lppaca_ptr = &paca[number].lppaca,				    \
	.reg_save_ptr = &paca[number].reg_save,				    \
	.reg_save = {							    \
		.xDesc = 0xd397d9e2,	/* "LpRS" */			    \
		.xSize = sizeof(struct ItLpRegSave)			    \
	}

#define PACA_INIT(number)						    \
{									    \
	PACA_INIT_COMMON(number, 0, 0, 0)				    \
	PACA_INIT_ISERIES(number)					    \
}

#define BOOTCPU_PACA_INIT(number)					    \
{									    \
	PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab)		    \
	PACA_INIT_ISERIES(number)					    \
}

#else
#define PACA_INIT(number)						    \
{									    \
	PACA_INIT_COMMON(number, 0, 0, 0)				    \
}

#define BOOTCPU_PACA_INIT(number)					    \
{									    \
	PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab)    \
}
#endif

struct paca_struct paca[] = {
	BOOTCPU_PACA_INIT(0),
#if NR_CPUS > 1
	PACA_INIT(  1), PACA_INIT(  2), PACA_INIT(  3),
#if NR_CPUS > 4
	PACA_INIT(  4), PACA_INIT(  5), PACA_INIT(  6), PACA_INIT(  7),
#if NR_CPUS > 8
	PACA_INIT(  8), PACA_INIT(  9), PACA_INIT( 10), PACA_INIT( 11),
	PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15),
	PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19),
	PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23),
	PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27),
	PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31),
#if NR_CPUS > 32
	PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35),
	PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39),
	PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43),
	PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47),
	PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51),
	PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55),
	PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59),
	PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63),
#if NR_CPUS > 64
	PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67),
	PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71),
	PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75),
	PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79),
	PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83),
	PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87),
	PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91),
	PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95),
	PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99),
	PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103),
	PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107),
	PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111),
	PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115),
	PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119),
	PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123),
	PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127),
#endif
#endif
#endif
#endif
#endif
};
EXPORT_SYMBOL(paca);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* c 2001 PPC 64 Team, IBM Corp
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*/
	9
	10	#include <linux/config.h>
	11	#include <linux/types.h>
	12	#include <linux/threads.h>
	13	#include <linux/module.h>
	14
	15	#include <asm/processor.h>
	16	#include <asm/ptrace.h>
	17	#include <asm/page.h>
	18
	19	#include <asm/lppaca.h>
	20	#include <asm/iSeries/ItLpQueue.h>
	21	#include <asm/paca.h>
	22
	23	static union {
	24	struct systemcfg data;
	25	u8 page[PAGE_SIZE];
	26	} systemcfg_store __page_aligned;
	27	struct systemcfg *systemcfg = &systemcfg_store.data;
	28	EXPORT_SYMBOL(systemcfg);
	29
	30
	31	/* This symbol is provided by the linker - let it fill in the paca
	32	* field correctly */
	33	extern unsigned long __toc_start;
	34
	35	/* The Paca is an array with one entry per processor. Each contains an
	36	* lppaca, which contains the information shared between the
	37	* hypervisor and Linux. Each also contains an ItLpRegSave area which
	38	* is used by the hypervisor to save registers.
	39	* On systems with hardware multi-threading, there are two threads
	40	* per processor. The Paca array must contain an entry for each thread.
	41	* The VPD Areas will give a max logical processors = 2 * max physical
	42	* processors. The processor VPD array needs one entry per physical
	43	* processor (not thread).
	44	*/
ee48444b	45	#define PACA_INIT_COMMON(number, start, asrr, asrv) \
1da177e4 LT	46	.lock_token = 0x8000, \
	47	.paca_index = (number), /* Paca Index */ \
	48	.default_decr = 0x00ff0000, /* Initial Decr */ \
	49	.kernel_toc = (unsigned long)(&__toc_start) + 0x8000UL, \
	50	.stab_real = (asrr), /* Real pointer to segment table */ \
	51	.stab_addr = (asrv), /* Virt pointer to segment table */ \
	52	.cpu_start = (start), /* Processor start */ \
	53	.hw_cpu_id = 0xffff, \
	54	.lppaca = { \
	55	.desc = 0xd397d781, /* "LpPa" */ \
	56	.size = sizeof(struct lppaca), \
	57	.dyn_proc_status = 2, \
	58	.decr_val = 0x00ff0000, \
	59	.fpregs_in_use = 1, \
	60	.end_of_quantum = 0xfffffffffffffffful, \
	61	.slb_count = 64, \
233ccd0d	62	.vmxregs_in_use = 0, \
1da177e4	63	}, \
1da177e4	64
1da177e4	65	#ifdef CONFIG_PPC_ISERIES
ee48444b ME	66	#define PACA_INIT_ISERIES(number) \
	67	.lppaca_ptr = &paca[number].lppaca, \
	68	.reg_save_ptr = &paca[number].reg_save, \
	69	.reg_save = { \
	70	.xDesc = 0xd397d9e2, /* "LpRS" */ \
	71	.xSize = sizeof(struct ItLpRegSave) \
	72	}
	73
	74	#define PACA_INIT(number) \
	75	{ \
	76	PACA_INIT_COMMON(number, 0, 0, 0) \
	77	PACA_INIT_ISERIES(number) \
	78	}
	79
	80	#define BOOTCPU_PACA_INIT(number) \
	81	{ \
c59c464a	82	PACA_INIT_COMMON(number, 1, 0, (u64)&initial_stab) \
ee48444b ME	83	PACA_INIT_ISERIES(number) \
	84	}
	85
1da177e4	86	#else
ee48444b ME	87	#define PACA_INIT(number) \
	88	{ \
	89	PACA_INIT_COMMON(number, 0, 0, 0) \
	90	}
	91
	92	#define BOOTCPU_PACA_INIT(number) \
	93	{ \
c59c464a	94	PACA_INIT_COMMON(number, 1, STAB0_PHYS_ADDR, (u64)&initial_stab) \
ee48444b	95	}
1da177e4	96	#endif
ee48444b ME	97
	98	struct paca_struct paca[] = {
	99	BOOTCPU_PACA_INIT(0),
1da177e4	100	#if NR_CPUS > 1
ee48444b	101	PACA_INIT( 1), PACA_INIT( 2), PACA_INIT( 3),
1da177e4	102	#if NR_CPUS > 4
ee48444b	103	PACA_INIT( 4), PACA_INIT( 5), PACA_INIT( 6), PACA_INIT( 7),
1da177e4	104	#if NR_CPUS > 8
ee48444b ME	105	PACA_INIT( 8), PACA_INIT( 9), PACA_INIT( 10), PACA_INIT( 11),
	106	PACA_INIT( 12), PACA_INIT( 13), PACA_INIT( 14), PACA_INIT( 15),
	107	PACA_INIT( 16), PACA_INIT( 17), PACA_INIT( 18), PACA_INIT( 19),
	108	PACA_INIT( 20), PACA_INIT( 21), PACA_INIT( 22), PACA_INIT( 23),
	109	PACA_INIT( 24), PACA_INIT( 25), PACA_INIT( 26), PACA_INIT( 27),
	110	PACA_INIT( 28), PACA_INIT( 29), PACA_INIT( 30), PACA_INIT( 31),
1da177e4	111	#if NR_CPUS > 32
ee48444b ME	112	PACA_INIT( 32), PACA_INIT( 33), PACA_INIT( 34), PACA_INIT( 35),
	113	PACA_INIT( 36), PACA_INIT( 37), PACA_INIT( 38), PACA_INIT( 39),
	114	PACA_INIT( 40), PACA_INIT( 41), PACA_INIT( 42), PACA_INIT( 43),
	115	PACA_INIT( 44), PACA_INIT( 45), PACA_INIT( 46), PACA_INIT( 47),
	116	PACA_INIT( 48), PACA_INIT( 49), PACA_INIT( 50), PACA_INIT( 51),
	117	PACA_INIT( 52), PACA_INIT( 53), PACA_INIT( 54), PACA_INIT( 55),
	118	PACA_INIT( 56), PACA_INIT( 57), PACA_INIT( 58), PACA_INIT( 59),
	119	PACA_INIT( 60), PACA_INIT( 61), PACA_INIT( 62), PACA_INIT( 63),
1da177e4	120	#if NR_CPUS > 64
ee48444b ME	121	PACA_INIT( 64), PACA_INIT( 65), PACA_INIT( 66), PACA_INIT( 67),
	122	PACA_INIT( 68), PACA_INIT( 69), PACA_INIT( 70), PACA_INIT( 71),
	123	PACA_INIT( 72), PACA_INIT( 73), PACA_INIT( 74), PACA_INIT( 75),
	124	PACA_INIT( 76), PACA_INIT( 77), PACA_INIT( 78), PACA_INIT( 79),
	125	PACA_INIT( 80), PACA_INIT( 81), PACA_INIT( 82), PACA_INIT( 83),
	126	PACA_INIT( 84), PACA_INIT( 85), PACA_INIT( 86), PACA_INIT( 87),
	127	PACA_INIT( 88), PACA_INIT( 89), PACA_INIT( 90), PACA_INIT( 91),
	128	PACA_INIT( 92), PACA_INIT( 93), PACA_INIT( 94), PACA_INIT( 95),
	129	PACA_INIT( 96), PACA_INIT( 97), PACA_INIT( 98), PACA_INIT( 99),
	130	PACA_INIT(100), PACA_INIT(101), PACA_INIT(102), PACA_INIT(103),
	131	PACA_INIT(104), PACA_INIT(105), PACA_INIT(106), PACA_INIT(107),
	132	PACA_INIT(108), PACA_INIT(109), PACA_INIT(110), PACA_INIT(111),
	133	PACA_INIT(112), PACA_INIT(113), PACA_INIT(114), PACA_INIT(115),
	134	PACA_INIT(116), PACA_INIT(117), PACA_INIT(118), PACA_INIT(119),
	135	PACA_INIT(120), PACA_INIT(121), PACA_INIT(122), PACA_INIT(123),
	136	PACA_INIT(124), PACA_INIT(125), PACA_INIT(126), PACA_INIT(127),
1da177e4 LT	137	#endif
	138	#endif
	139	#endif
	140	#endif
	141	#endif
	142	};
	143	EXPORT_SYMBOL(paca);