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1 /*
2  * Contains the definition of registers common to all PowerPC variants.
3  * If a register definition has been changed in a different PowerPC
4  * variant, we will case it in #ifndef XXX ... #endif, and have the
5  * number used in the Programming Environments Manual For 32-Bit
6  * Implementations of the PowerPC Architecture (a.k.a. Green Book) here.
7  */
8 
9 #ifndef _ASM_POWERPC_REG_H
10 #define _ASM_POWERPC_REG_H
11 #ifdef __KERNEL__
12 
13 #include <linux/stringify.h>
14 #include <asm/cputable.h>
15 
16 /* Pickup Book E specific registers. */
17 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
18 #include <asm/reg_booke.h>
19 #endif /* CONFIG_BOOKE || CONFIG_40x */
20 
21 #ifdef CONFIG_FSL_EMB_PERFMON
22 #include <asm/reg_fsl_emb.h>
23 #endif
24 
25 #ifdef CONFIG_8xx
26 #include <asm/reg_8xx.h>
27 #endif /* CONFIG_8xx */
28 
29 #define MSR_SF_LG	63              /* Enable 64 bit mode */
30 #define MSR_ISF_LG	61              /* Interrupt 64b mode valid on 630 */
31 #define MSR_HV_LG 	60              /* Hypervisor state */
32 #define MSR_VEC_LG	25	        /* Enable AltiVec */
33 #define MSR_VSX_LG	23		/* Enable VSX */
34 #define MSR_POW_LG	18		/* Enable Power Management */
35 #define MSR_WE_LG	18		/* Wait State Enable */
36 #define MSR_TGPR_LG	17		/* TLB Update registers in use */
37 #define MSR_CE_LG	17		/* Critical Interrupt Enable */
38 #define MSR_ILE_LG	16		/* Interrupt Little Endian */
39 #define MSR_EE_LG	15		/* External Interrupt Enable */
40 #define MSR_PR_LG	14		/* Problem State / Privilege Level */
41 #define MSR_FP_LG	13		/* Floating Point enable */
42 #define MSR_ME_LG	12		/* Machine Check Enable */
43 #define MSR_FE0_LG	11		/* Floating Exception mode 0 */
44 #define MSR_SE_LG	10		/* Single Step */
45 #define MSR_BE_LG	9		/* Branch Trace */
46 #define MSR_DE_LG	9 		/* Debug Exception Enable */
47 #define MSR_FE1_LG	8		/* Floating Exception mode 1 */
48 #define MSR_IP_LG	6		/* Exception prefix 0x000/0xFFF */
49 #define MSR_IR_LG	5 		/* Instruction Relocate */
50 #define MSR_DR_LG	4 		/* Data Relocate */
51 #define MSR_PE_LG	3		/* Protection Enable */
52 #define MSR_PX_LG	2		/* Protection Exclusive Mode */
53 #define MSR_PMM_LG	2		/* Performance monitor */
54 #define MSR_RI_LG	1		/* Recoverable Exception */
55 #define MSR_LE_LG	0 		/* Little Endian */
56 
57 #ifdef __ASSEMBLY__
58 #define __MASK(X)	(1<<(X))
59 #else
60 #define __MASK(X)	(1UL<<(X))
61 #endif
62 
63 #ifdef CONFIG_PPC64
64 #define MSR_SF		__MASK(MSR_SF_LG)	/* Enable 64 bit mode */
65 #define MSR_ISF		__MASK(MSR_ISF_LG)	/* Interrupt 64b mode valid on 630 */
66 #define MSR_HV 		__MASK(MSR_HV_LG)	/* Hypervisor state */
67 #else
68 /* so tests for these bits fail on 32-bit */
69 #define MSR_SF		0
70 #define MSR_ISF		0
71 #define MSR_HV		0
72 #endif
73 
74 #define MSR_VEC		__MASK(MSR_VEC_LG)	/* Enable AltiVec */
75 #define MSR_VSX		__MASK(MSR_VSX_LG)	/* Enable VSX */
76 #define MSR_POW		__MASK(MSR_POW_LG)	/* Enable Power Management */
77 #define MSR_WE		__MASK(MSR_WE_LG)	/* Wait State Enable */
78 #define MSR_TGPR	__MASK(MSR_TGPR_LG)	/* TLB Update registers in use */
79 #define MSR_CE		__MASK(MSR_CE_LG)	/* Critical Interrupt Enable */
80 #define MSR_ILE		__MASK(MSR_ILE_LG)	/* Interrupt Little Endian */
81 #define MSR_EE		__MASK(MSR_EE_LG)	/* External Interrupt Enable */
82 #define MSR_PR		__MASK(MSR_PR_LG)	/* Problem State / Privilege Level */
83 #define MSR_FP		__MASK(MSR_FP_LG)	/* Floating Point enable */
84 #define MSR_ME		__MASK(MSR_ME_LG)	/* Machine Check Enable */
85 #define MSR_FE0		__MASK(MSR_FE0_LG)	/* Floating Exception mode 0 */
86 #define MSR_SE		__MASK(MSR_SE_LG)	/* Single Step */
87 #define MSR_BE		__MASK(MSR_BE_LG)	/* Branch Trace */
88 #define MSR_DE		__MASK(MSR_DE_LG)	/* Debug Exception Enable */
89 #define MSR_FE1		__MASK(MSR_FE1_LG)	/* Floating Exception mode 1 */
90 #define MSR_IP		__MASK(MSR_IP_LG)	/* Exception prefix 0x000/0xFFF */
91 #define MSR_IR		__MASK(MSR_IR_LG)	/* Instruction Relocate */
92 #define MSR_DR		__MASK(MSR_DR_LG)	/* Data Relocate */
93 #define MSR_PE		__MASK(MSR_PE_LG)	/* Protection Enable */
94 #define MSR_PX		__MASK(MSR_PX_LG)	/* Protection Exclusive Mode */
95 #ifndef MSR_PMM
96 #define MSR_PMM		__MASK(MSR_PMM_LG)	/* Performance monitor */
97 #endif
98 #define MSR_RI		__MASK(MSR_RI_LG)	/* Recoverable Exception */
99 #define MSR_LE		__MASK(MSR_LE_LG)	/* Little Endian */
100 
101 #ifdef CONFIG_PPC64
102 #define MSR_		MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF |MSR_HV
103 #define MSR_KERNEL      MSR_ | MSR_SF
104 
105 #define MSR_USER32	MSR_ | MSR_PR | MSR_EE
106 #define MSR_USER64	MSR_USER32 | MSR_SF
107 
108 #else /* 32-bit */
109 /* Default MSR for kernel mode. */
110 #ifndef MSR_KERNEL	/* reg_booke.h also defines this */
111 #define MSR_KERNEL	(MSR_ME|MSR_RI|MSR_IR|MSR_DR)
112 #endif
113 
114 #define MSR_USER	(MSR_KERNEL|MSR_PR|MSR_EE)
115 #endif
116 
117 /* Floating Point Status and Control Register (FPSCR) Fields */
118 #define FPSCR_FX	0x80000000	/* FPU exception summary */
119 #define FPSCR_FEX	0x40000000	/* FPU enabled exception summary */
120 #define FPSCR_VX	0x20000000	/* Invalid operation summary */
121 #define FPSCR_OX	0x10000000	/* Overflow exception summary */
122 #define FPSCR_UX	0x08000000	/* Underflow exception summary */
123 #define FPSCR_ZX	0x04000000	/* Zero-divide exception summary */
124 #define FPSCR_XX	0x02000000	/* Inexact exception summary */
125 #define FPSCR_VXSNAN	0x01000000	/* Invalid op for SNaN */
126 #define FPSCR_VXISI	0x00800000	/* Invalid op for Inv - Inv */
127 #define FPSCR_VXIDI	0x00400000	/* Invalid op for Inv / Inv */
128 #define FPSCR_VXZDZ	0x00200000	/* Invalid op for Zero / Zero */
129 #define FPSCR_VXIMZ	0x00100000	/* Invalid op for Inv * Zero */
130 #define FPSCR_VXVC	0x00080000	/* Invalid op for Compare */
131 #define FPSCR_FR	0x00040000	/* Fraction rounded */
132 #define FPSCR_FI	0x00020000	/* Fraction inexact */
133 #define FPSCR_FPRF	0x0001f000	/* FPU Result Flags */
134 #define FPSCR_FPCC	0x0000f000	/* FPU Condition Codes */
135 #define FPSCR_VXSOFT	0x00000400	/* Invalid op for software request */
136 #define FPSCR_VXSQRT	0x00000200	/* Invalid op for square root */
137 #define FPSCR_VXCVI	0x00000100	/* Invalid op for integer convert */
138 #define FPSCR_VE	0x00000080	/* Invalid op exception enable */
139 #define FPSCR_OE	0x00000040	/* IEEE overflow exception enable */
140 #define FPSCR_UE	0x00000020	/* IEEE underflow exception enable */
141 #define FPSCR_ZE	0x00000010	/* IEEE zero divide exception enable */
142 #define FPSCR_XE	0x00000008	/* FP inexact exception enable */
143 #define FPSCR_NI	0x00000004	/* FPU non IEEE-Mode */
144 #define FPSCR_RN	0x00000003	/* FPU rounding control */
145 
146 /* Special Purpose Registers (SPRNs)*/
147 #define SPRN_CTR	0x009	/* Count Register */
148 #define SPRN_DSCR	0x11
149 #define SPRN_CTRLF	0x088
150 #define SPRN_CTRLT	0x098
151 #define   CTRL_CT	0xc0000000	/* current thread */
152 #define   CTRL_CT0	0x80000000	/* thread 0 */
153 #define   CTRL_CT1	0x40000000	/* thread 1 */
154 #define   CTRL_TE	0x00c00000	/* thread enable */
155 #define   CTRL_RUNLATCH	0x1
156 #define SPRN_DABR	0x3F5	/* Data Address Breakpoint Register */
157 #define   DABR_TRANSLATION	(1UL << 2)
158 #define SPRN_DABR2	0x13D	/* e300 */
159 #define SPRN_DABRX	0x3F7	/* Data Address Breakpoint Register Extension */
160 #define   DABRX_USER	(1UL << 0)
161 #define   DABRX_KERNEL	(1UL << 1)
162 #define SPRN_DAR	0x013	/* Data Address Register */
163 #define SPRN_DBCR	0x136	/* e300 Data Breakpoint Control Reg */
164 #define SPRN_DSISR	0x012	/* Data Storage Interrupt Status Register */
165 #define   DSISR_NOHPTE		0x40000000	/* no translation found */
166 #define   DSISR_PROTFAULT	0x08000000	/* protection fault */
167 #define   DSISR_ISSTORE		0x02000000	/* access was a store */
168 #define   DSISR_DABRMATCH	0x00400000	/* hit data breakpoint */
169 #define   DSISR_NOSEGMENT	0x00200000	/* STAB/SLB miss */
170 #define SPRN_TBRL	0x10C	/* Time Base Read Lower Register (user, R/O) */
171 #define SPRN_TBRU	0x10D	/* Time Base Read Upper Register (user, R/O) */
172 #define SPRN_TBWL	0x11C	/* Time Base Lower Register (super, R/W) */
173 #define SPRN_TBWU	0x11D	/* Time Base Upper Register (super, R/W) */
174 #define SPRN_SPURR	0x134	/* Scaled PURR */
175 #define SPRN_HIOR	0x137	/* 970 Hypervisor interrupt offset */
176 #define SPRN_LPCR	0x13E	/* LPAR Control Register */
177 #define SPRN_DBAT0L	0x219	/* Data BAT 0 Lower Register */
178 #define SPRN_DBAT0U	0x218	/* Data BAT 0 Upper Register */
179 #define SPRN_DBAT1L	0x21B	/* Data BAT 1 Lower Register */
180 #define SPRN_DBAT1U	0x21A	/* Data BAT 1 Upper Register */
181 #define SPRN_DBAT2L	0x21D	/* Data BAT 2 Lower Register */
182 #define SPRN_DBAT2U	0x21C	/* Data BAT 2 Upper Register */
183 #define SPRN_DBAT3L	0x21F	/* Data BAT 3 Lower Register */
184 #define SPRN_DBAT3U	0x21E	/* Data BAT 3 Upper Register */
185 #define SPRN_DBAT4L	0x239	/* Data BAT 4 Lower Register */
186 #define SPRN_DBAT4U	0x238	/* Data BAT 4 Upper Register */
187 #define SPRN_DBAT5L	0x23B	/* Data BAT 5 Lower Register */
188 #define SPRN_DBAT5U	0x23A	/* Data BAT 5 Upper Register */
189 #define SPRN_DBAT6L	0x23D	/* Data BAT 6 Lower Register */
190 #define SPRN_DBAT6U	0x23C	/* Data BAT 6 Upper Register */
191 #define SPRN_DBAT7L	0x23F	/* Data BAT 7 Lower Register */
192 #define SPRN_DBAT7U	0x23E	/* Data BAT 7 Upper Register */
193 
194 #define SPRN_DEC	0x016		/* Decrement Register */
195 #define SPRN_DER	0x095		/* Debug Enable Regsiter */
196 #define DER_RSTE	0x40000000	/* Reset Interrupt */
197 #define DER_CHSTPE	0x20000000	/* Check Stop */
198 #define DER_MCIE	0x10000000	/* Machine Check Interrupt */
199 #define DER_EXTIE	0x02000000	/* External Interrupt */
200 #define DER_ALIE	0x01000000	/* Alignment Interrupt */
201 #define DER_PRIE	0x00800000	/* Program Interrupt */
202 #define DER_FPUVIE	0x00400000	/* FP Unavailable Interrupt */
203 #define DER_DECIE	0x00200000	/* Decrementer Interrupt */
204 #define DER_SYSIE	0x00040000	/* System Call Interrupt */
205 #define DER_TRE		0x00020000	/* Trace Interrupt */
206 #define DER_SEIE	0x00004000	/* FP SW Emulation Interrupt */
207 #define DER_ITLBMSE	0x00002000	/* Imp. Spec. Instruction TLB Miss */
208 #define DER_ITLBERE	0x00001000	/* Imp. Spec. Instruction TLB Error */
209 #define DER_DTLBMSE	0x00000800	/* Imp. Spec. Data TLB Miss */
210 #define DER_DTLBERE	0x00000400	/* Imp. Spec. Data TLB Error */
211 #define DER_LBRKE	0x00000008	/* Load/Store Breakpoint Interrupt */
212 #define DER_IBRKE	0x00000004	/* Instruction Breakpoint Interrupt */
213 #define DER_EBRKE	0x00000002	/* External Breakpoint Interrupt */
214 #define DER_DPIE	0x00000001	/* Dev. Port Nonmaskable Request */
215 #define SPRN_DMISS	0x3D0		/* Data TLB Miss Register */
216 #define SPRN_EAR	0x11A		/* External Address Register */
217 #define SPRN_HASH1	0x3D2		/* Primary Hash Address Register */
218 #define SPRN_HASH2	0x3D3		/* Secondary Hash Address Resgister */
219 #define SPRN_HID0	0x3F0		/* Hardware Implementation Register 0 */
220 #define HID0_EMCP	(1<<31)		/* Enable Machine Check pin */
221 #define HID0_EBA	(1<<29)		/* Enable Bus Address Parity */
222 #define HID0_EBD	(1<<28)		/* Enable Bus Data Parity */
223 #define HID0_SBCLK	(1<<27)
224 #define HID0_EICE	(1<<26)
225 #define HID0_TBEN	(1<<26)		/* Timebase enable - 745x */
226 #define HID0_ECLK	(1<<25)
227 #define HID0_PAR	(1<<24)
228 #define HID0_STEN	(1<<24)		/* Software table search enable - 745x */
229 #define HID0_HIGH_BAT	(1<<23)		/* Enable high BATs - 7455 */
230 #define HID0_DOZE	(1<<23)
231 #define HID0_NAP	(1<<22)
232 #define HID0_SLEEP	(1<<21)
233 #define HID0_DPM	(1<<20)
234 #define HID0_BHTCLR	(1<<18)		/* Clear branch history table - 7450 */
235 #define HID0_XAEN	(1<<17)		/* Extended addressing enable - 7450 */
236 #define HID0_NHR	(1<<16)		/* Not hard reset (software bit-7450)*/
237 #define HID0_ICE	(1<<15)		/* Instruction Cache Enable */
238 #define HID0_DCE	(1<<14)		/* Data Cache Enable */
239 #define HID0_ILOCK	(1<<13)		/* Instruction Cache Lock */
240 #define HID0_DLOCK	(1<<12)		/* Data Cache Lock */
241 #define HID0_ICFI	(1<<11)		/* Instr. Cache Flash Invalidate */
242 #define HID0_DCI	(1<<10)		/* Data Cache Invalidate */
243 #define HID0_SPD	(1<<9)		/* Speculative disable */
244 #define HID0_DAPUEN	(1<<8)		/* Debug APU enable */
245 #define HID0_SGE	(1<<7)		/* Store Gathering Enable */
246 #define HID0_SIED	(1<<7)		/* Serial Instr. Execution [Disable] */
247 #define HID0_DCFA	(1<<6)		/* Data Cache Flush Assist */
248 #define HID0_LRSTK	(1<<4)		/* Link register stack - 745x */
249 #define HID0_BTIC	(1<<5)		/* Branch Target Instr Cache Enable */
250 #define HID0_ABE	(1<<3)		/* Address Broadcast Enable */
251 #define HID0_FOLD	(1<<3)		/* Branch Folding enable - 745x */
252 #define HID0_BHTE	(1<<2)		/* Branch History Table Enable */
253 #define HID0_BTCD	(1<<1)		/* Branch target cache disable */
254 #define HID0_NOPDST	(1<<1)		/* No-op dst, dstt, etc. instr. */
255 #define HID0_NOPTI	(1<<0)		/* No-op dcbt and dcbst instr. */
256 
257 #define SPRN_HID1	0x3F1		/* Hardware Implementation Register 1 */
258 #define HID1_EMCP	(1<<31)		/* 7450 Machine Check Pin Enable */
259 #define HID1_DFS	(1<<22)		/* 7447A Dynamic Frequency Scaling */
260 #define HID1_PC0	(1<<16)		/* 7450 PLL_CFG[0] */
261 #define HID1_PC1	(1<<15)		/* 7450 PLL_CFG[1] */
262 #define HID1_PC2	(1<<14)		/* 7450 PLL_CFG[2] */
263 #define HID1_PC3	(1<<13)		/* 7450 PLL_CFG[3] */
264 #define HID1_SYNCBE	(1<<11)		/* 7450 ABE for sync, eieio */
265 #define HID1_ABE	(1<<10)		/* 7450 Address Broadcast Enable */
266 #define HID1_PS		(1<<16)		/* 750FX PLL selection */
267 #define SPRN_HID2	0x3F8		/* Hardware Implementation Register 2 */
268 #define SPRN_IABR	0x3F2	/* Instruction Address Breakpoint Register */
269 #define SPRN_IABR2	0x3FA		/* 83xx */
270 #define SPRN_IBCR	0x135		/* 83xx Insn Breakpoint Control Reg */
271 #define SPRN_HID4	0x3F4		/* 970 HID4 */
272 #define SPRN_HID5	0x3F6		/* 970 HID5 */
273 #define SPRN_HID6	0x3F9	/* BE HID 6 */
274 #define   HID6_LB	(0x0F<<12) /* Concurrent Large Page Modes */
275 #define   HID6_DLP	(1<<20)	/* Disable all large page modes (4K only) */
276 #define SPRN_TSC_CELL	0x399	/* Thread switch control on Cell */
277 #define   TSC_CELL_DEC_ENABLE_0	0x400000 /* Decrementer Interrupt */
278 #define   TSC_CELL_DEC_ENABLE_1	0x200000 /* Decrementer Interrupt */
279 #define   TSC_CELL_EE_ENABLE	0x100000 /* External Interrupt */
280 #define   TSC_CELL_EE_BOOST	0x080000 /* External Interrupt Boost */
281 #define SPRN_TSC 	0x3FD	/* Thread switch control on others */
282 #define SPRN_TST 	0x3FC	/* Thread switch timeout on others */
283 #if !defined(SPRN_IAC1) && !defined(SPRN_IAC2)
284 #define SPRN_IAC1	0x3F4		/* Instruction Address Compare 1 */
285 #define SPRN_IAC2	0x3F5		/* Instruction Address Compare 2 */
286 #endif
287 #define SPRN_IBAT0L	0x211		/* Instruction BAT 0 Lower Register */
288 #define SPRN_IBAT0U	0x210		/* Instruction BAT 0 Upper Register */
289 #define SPRN_IBAT1L	0x213		/* Instruction BAT 1 Lower Register */
290 #define SPRN_IBAT1U	0x212		/* Instruction BAT 1 Upper Register */
291 #define SPRN_IBAT2L	0x215		/* Instruction BAT 2 Lower Register */
292 #define SPRN_IBAT2U	0x214		/* Instruction BAT 2 Upper Register */
293 #define SPRN_IBAT3L	0x217		/* Instruction BAT 3 Lower Register */
294 #define SPRN_IBAT3U	0x216		/* Instruction BAT 3 Upper Register */
295 #define SPRN_IBAT4L	0x231		/* Instruction BAT 4 Lower Register */
296 #define SPRN_IBAT4U	0x230		/* Instruction BAT 4 Upper Register */
297 #define SPRN_IBAT5L	0x233		/* Instruction BAT 5 Lower Register */
298 #define SPRN_IBAT5U	0x232		/* Instruction BAT 5 Upper Register */
299 #define SPRN_IBAT6L	0x235		/* Instruction BAT 6 Lower Register */
300 #define SPRN_IBAT6U	0x234		/* Instruction BAT 6 Upper Register */
301 #define SPRN_IBAT7L	0x237		/* Instruction BAT 7 Lower Register */
302 #define SPRN_IBAT7U	0x236		/* Instruction BAT 7 Upper Register */
303 #define SPRN_ICMP	0x3D5		/* Instruction TLB Compare Register */
304 #define SPRN_ICTC	0x3FB	/* Instruction Cache Throttling Control Reg */
305 #define SPRN_ICTRL	0x3F3	/* 1011 7450 icache and interrupt ctrl */
306 #define ICTRL_EICE	0x08000000	/* enable icache parity errs */
307 #define ICTRL_EDC	0x04000000	/* enable dcache parity errs */
308 #define ICTRL_EICP	0x00000100	/* enable icache par. check */
309 #define SPRN_IMISS	0x3D4		/* Instruction TLB Miss Register */
310 #define SPRN_IMMR	0x27E		/* Internal Memory Map Register */
311 #define SPRN_L2CR	0x3F9		/* Level 2 Cache Control Regsiter */
312 #define SPRN_L2CR2	0x3f8
313 #define L2CR_L2E		0x80000000	/* L2 enable */
314 #define L2CR_L2PE		0x40000000	/* L2 parity enable */
315 #define L2CR_L2SIZ_MASK		0x30000000	/* L2 size mask */
316 #define L2CR_L2SIZ_256KB	0x10000000	/* L2 size 256KB */
317 #define L2CR_L2SIZ_512KB	0x20000000	/* L2 size 512KB */
318 #define L2CR_L2SIZ_1MB		0x30000000	/* L2 size 1MB */
319 #define L2CR_L2CLK_MASK		0x0e000000	/* L2 clock mask */
320 #define L2CR_L2CLK_DISABLED	0x00000000	/* L2 clock disabled */
321 #define L2CR_L2CLK_DIV1		0x02000000	/* L2 clock / 1 */
322 #define L2CR_L2CLK_DIV1_5	0x04000000	/* L2 clock / 1.5 */
323 #define L2CR_L2CLK_DIV2		0x08000000	/* L2 clock / 2 */
324 #define L2CR_L2CLK_DIV2_5	0x0a000000	/* L2 clock / 2.5 */
325 #define L2CR_L2CLK_DIV3		0x0c000000	/* L2 clock / 3 */
326 #define L2CR_L2RAM_MASK		0x01800000	/* L2 RAM type mask */
327 #define L2CR_L2RAM_FLOW		0x00000000	/* L2 RAM flow through */
328 #define L2CR_L2RAM_PIPE		0x01000000	/* L2 RAM pipelined */
329 #define L2CR_L2RAM_PIPE_LW	0x01800000	/* L2 RAM pipelined latewr */
330 #define L2CR_L2DO		0x00400000	/* L2 data only */
331 #define L2CR_L2I		0x00200000	/* L2 global invalidate */
332 #define L2CR_L2CTL		0x00100000	/* L2 RAM control */
333 #define L2CR_L2WT		0x00080000	/* L2 write-through */
334 #define L2CR_L2TS		0x00040000	/* L2 test support */
335 #define L2CR_L2OH_MASK		0x00030000	/* L2 output hold mask */
336 #define L2CR_L2OH_0_5		0x00000000	/* L2 output hold 0.5 ns */
337 #define L2CR_L2OH_1_0		0x00010000	/* L2 output hold 1.0 ns */
338 #define L2CR_L2SL		0x00008000	/* L2 DLL slow */
339 #define L2CR_L2DF		0x00004000	/* L2 differential clock */
340 #define L2CR_L2BYP		0x00002000	/* L2 DLL bypass */
341 #define L2CR_L2IP		0x00000001	/* L2 GI in progress */
342 #define L2CR_L2IO_745x		0x00100000	/* L2 instr. only (745x) */
343 #define L2CR_L2DO_745x		0x00010000	/* L2 data only (745x) */
344 #define L2CR_L2REP_745x		0x00001000	/* L2 repl. algorithm (745x) */
345 #define L2CR_L2HWF_745x		0x00000800	/* L2 hardware flush (745x) */
346 #define SPRN_L3CR		0x3FA	/* Level 3 Cache Control Regsiter */
347 #define L3CR_L3E		0x80000000	/* L3 enable */
348 #define L3CR_L3PE		0x40000000	/* L3 data parity enable */
349 #define L3CR_L3APE		0x20000000	/* L3 addr parity enable */
350 #define L3CR_L3SIZ		0x10000000	/* L3 size */
351 #define L3CR_L3CLKEN		0x08000000	/* L3 clock enable */
352 #define L3CR_L3RES		0x04000000	/* L3 special reserved bit */
353 #define L3CR_L3CLKDIV		0x03800000	/* L3 clock divisor */
354 #define L3CR_L3IO		0x00400000	/* L3 instruction only */
355 #define L3CR_L3SPO		0x00040000	/* L3 sample point override */
356 #define L3CR_L3CKSP		0x00030000	/* L3 clock sample point */
357 #define L3CR_L3PSP		0x0000e000	/* L3 P-clock sample point */
358 #define L3CR_L3REP		0x00001000	/* L3 replacement algorithm */
359 #define L3CR_L3HWF		0x00000800	/* L3 hardware flush */
360 #define L3CR_L3I		0x00000400	/* L3 global invalidate */
361 #define L3CR_L3RT		0x00000300	/* L3 SRAM type */
362 #define L3CR_L3NIRCA		0x00000080	/* L3 non-integer ratio clock adj. */
363 #define L3CR_L3DO		0x00000040	/* L3 data only mode */
364 #define L3CR_PMEN		0x00000004	/* L3 private memory enable */
365 #define L3CR_PMSIZ		0x00000001	/* L3 private memory size */
366 
367 #define SPRN_MSSCR0	0x3f6	/* Memory Subsystem Control Register 0 */
368 #define SPRN_MSSSR0	0x3f7	/* Memory Subsystem Status Register 1 */
369 #define SPRN_LDSTCR	0x3f8	/* Load/Store control register */
370 #define SPRN_LDSTDB	0x3f4	/* */
371 #define SPRN_LR		0x008	/* Link Register */
372 #ifndef SPRN_PIR
373 #define SPRN_PIR	0x3FF	/* Processor Identification Register */
374 #endif
375 #define SPRN_PTEHI	0x3D5	/* 981 7450 PTE HI word (S/W TLB load) */
376 #define SPRN_PTELO	0x3D6	/* 982 7450 PTE LO word (S/W TLB load) */
377 #define SPRN_PURR	0x135	/* Processor Utilization of Resources Reg */
378 #define SPRN_PVR	0x11F	/* Processor Version Register */
379 #define SPRN_RPA	0x3D6	/* Required Physical Address Register */
380 #define SPRN_SDA	0x3BF	/* Sampled Data Address Register */
381 #define SPRN_SDR1	0x019	/* MMU Hash Base Register */
382 #define SPRN_ASR	0x118   /* Address Space Register */
383 #define SPRN_SIA	0x3BB	/* Sampled Instruction Address Register */
384 #define SPRN_SPRG0	0x110	/* Special Purpose Register General 0 */
385 #define SPRN_SPRG1	0x111	/* Special Purpose Register General 1 */
386 #define SPRN_SPRG2	0x112	/* Special Purpose Register General 2 */
387 #define SPRN_SPRG3	0x113	/* Special Purpose Register General 3 */
388 #define SPRN_SPRG4	0x114	/* Special Purpose Register General 4 */
389 #define SPRN_SPRG5	0x115	/* Special Purpose Register General 5 */
390 #define SPRN_SPRG6	0x116	/* Special Purpose Register General 6 */
391 #define SPRN_SPRG7	0x117	/* Special Purpose Register General 7 */
392 #define SPRN_SRR0	0x01A	/* Save/Restore Register 0 */
393 #define SPRN_SRR1	0x01B	/* Save/Restore Register 1 */
394 #define   SRR1_WAKEMASK		0x00380000 /* reason for wakeup */
395 #define   SRR1_WAKERESET	0x00380000 /* System reset */
396 #define   SRR1_WAKESYSERR	0x00300000 /* System error */
397 #define   SRR1_WAKEEE		0x00200000 /* External interrupt */
398 #define   SRR1_WAKEMT		0x00280000 /* mtctrl */
399 #define   SRR1_WAKEDEC		0x00180000 /* Decrementer interrupt */
400 #define   SRR1_WAKETHERM	0x00100000 /* Thermal management interrupt */
401 #define SPRN_HSRR0	0x13A	/* Save/Restore Register 0 */
402 #define SPRN_HSRR1	0x13B	/* Save/Restore Register 1 */
403 
404 #define SPRN_TBCTL	0x35f	/* PA6T Timebase control register */
405 #define   TBCTL_FREEZE		0x0000000000000000ull /* Freeze all tbs */
406 #define   TBCTL_RESTART		0x0000000100000000ull /* Restart all tbs */
407 #define   TBCTL_UPDATE_UPPER	0x0000000200000000ull /* Set upper 32 bits */
408 #define   TBCTL_UPDATE_LOWER	0x0000000300000000ull /* Set lower 32 bits */
409 
410 #ifndef SPRN_SVR
411 #define SPRN_SVR	0x11E	/* System Version Register */
412 #endif
413 #define SPRN_THRM1	0x3FC		/* Thermal Management Register 1 */
414 /* these bits were defined in inverted endian sense originally, ugh, confusing */
415 #define THRM1_TIN	(1 << 31)
416 #define THRM1_TIV	(1 << 30)
417 #define THRM1_THRES(x)	((x&0x7f)<<23)
418 #define THRM3_SITV(x)	((x&0x3fff)<<1)
419 #define THRM1_TID	(1<<2)
420 #define THRM1_TIE	(1<<1)
421 #define THRM1_V		(1<<0)
422 #define SPRN_THRM2	0x3FD		/* Thermal Management Register 2 */
423 #define SPRN_THRM3	0x3FE		/* Thermal Management Register 3 */
424 #define THRM3_E		(1<<0)
425 #define SPRN_TLBMISS	0x3D4		/* 980 7450 TLB Miss Register */
426 #define SPRN_UMMCR0	0x3A8	/* User Monitor Mode Control Register 0 */
427 #define SPRN_UMMCR1	0x3AC	/* User Monitor Mode Control Register 0 */
428 #define SPRN_UPMC1	0x3A9	/* User Performance Counter Register 1 */
429 #define SPRN_UPMC2	0x3AA	/* User Performance Counter Register 2 */
430 #define SPRN_UPMC3	0x3AD	/* User Performance Counter Register 3 */
431 #define SPRN_UPMC4	0x3AE	/* User Performance Counter Register 4 */
432 #define SPRN_USIA	0x3AB	/* User Sampled Instruction Address Register */
433 #define SPRN_VRSAVE	0x100	/* Vector Register Save Register */
434 #define SPRN_XER	0x001	/* Fixed Point Exception Register */
435 
436 #define SPRN_SCOMC	0x114	/* SCOM Access Control */
437 #define SPRN_SCOMD	0x115	/* SCOM Access DATA */
438 
439 /* Performance monitor SPRs */
440 #ifdef CONFIG_PPC64
441 #define SPRN_MMCR0	795
442 #define   MMCR0_FC	0x80000000UL /* freeze counters */
443 #define   MMCR0_FCS	0x40000000UL /* freeze in supervisor state */
444 #define   MMCR0_KERNEL_DISABLE MMCR0_FCS
445 #define   MMCR0_FCP	0x20000000UL /* freeze in problem state */
446 #define   MMCR0_PROBLEM_DISABLE MMCR0_FCP
447 #define   MMCR0_FCM1	0x10000000UL /* freeze counters while MSR mark = 1 */
448 #define   MMCR0_FCM0	0x08000000UL /* freeze counters while MSR mark = 0 */
449 #define   MMCR0_PMXE	0x04000000UL /* performance monitor exception enable */
450 #define   MMCR0_FCECE	0x02000000UL /* freeze ctrs on enabled cond or event */
451 #define   MMCR0_TBEE	0x00400000UL /* time base exception enable */
452 #define   MMCR0_PMC1CE	0x00008000UL /* PMC1 count enable*/
453 #define   MMCR0_PMCjCE	0x00004000UL /* PMCj count enable*/
454 #define   MMCR0_TRIGGER	0x00002000UL /* TRIGGER enable */
455 #define   MMCR0_PMAO	0x00000080UL /* performance monitor alert has occurred, set to 0 after handling exception */
456 #define   MMCR0_SHRFC	0x00000040UL /* SHRre freeze conditions between threads */
457 #define   MMCR0_FCTI	0x00000008UL /* freeze counters in tags inactive mode */
458 #define   MMCR0_FCTA	0x00000004UL /* freeze counters in tags active mode */
459 #define   MMCR0_FCWAIT	0x00000002UL /* freeze counter in WAIT state */
460 #define   MMCR0_FCHV	0x00000001UL /* freeze conditions in hypervisor mode */
461 #define SPRN_MMCR1	798
462 #define SPRN_MMCRA	0x312
463 #define   MMCRA_SIHV	0x10000000UL /* state of MSR HV when SIAR set */
464 #define   MMCRA_SIPR	0x08000000UL /* state of MSR PR when SIAR set */
465 #define   MMCRA_SLOT	0x07000000UL /* SLOT bits (37-39) */
466 #define   MMCRA_SLOT_SHIFT	24
467 #define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
468 #define   POWER6_MMCRA_SIHV   0x0000040000000000ULL
469 #define   POWER6_MMCRA_SIPR   0x0000020000000000ULL
470 #define   POWER6_MMCRA_THRM	0x00000020UL
471 #define   POWER6_MMCRA_OTHER	0x0000000EUL
472 #define SPRN_PMC1	787
473 #define SPRN_PMC2	788
474 #define SPRN_PMC3	789
475 #define SPRN_PMC4	790
476 #define SPRN_PMC5	791
477 #define SPRN_PMC6	792
478 #define SPRN_PMC7	793
479 #define SPRN_PMC8	794
480 #define SPRN_SIAR	780
481 #define SPRN_SDAR	781
482 
483 #define SPRN_PA6T_MMCR0 795
484 #define   PA6T_MMCR0_EN0	0x0000000000000001UL
485 #define   PA6T_MMCR0_EN1	0x0000000000000002UL
486 #define   PA6T_MMCR0_EN2	0x0000000000000004UL
487 #define   PA6T_MMCR0_EN3	0x0000000000000008UL
488 #define   PA6T_MMCR0_EN4	0x0000000000000010UL
489 #define   PA6T_MMCR0_EN5	0x0000000000000020UL
490 #define   PA6T_MMCR0_SUPEN	0x0000000000000040UL
491 #define   PA6T_MMCR0_PREN	0x0000000000000080UL
492 #define   PA6T_MMCR0_HYPEN	0x0000000000000100UL
493 #define   PA6T_MMCR0_FCM0	0x0000000000000200UL
494 #define   PA6T_MMCR0_FCM1	0x0000000000000400UL
495 #define   PA6T_MMCR0_INTGEN	0x0000000000000800UL
496 #define   PA6T_MMCR0_INTEN0	0x0000000000001000UL
497 #define   PA6T_MMCR0_INTEN1	0x0000000000002000UL
498 #define   PA6T_MMCR0_INTEN2	0x0000000000004000UL
499 #define   PA6T_MMCR0_INTEN3	0x0000000000008000UL
500 #define   PA6T_MMCR0_INTEN4	0x0000000000010000UL
501 #define   PA6T_MMCR0_INTEN5	0x0000000000020000UL
502 #define   PA6T_MMCR0_DISCNT	0x0000000000040000UL
503 #define   PA6T_MMCR0_UOP	0x0000000000080000UL
504 #define   PA6T_MMCR0_TRG	0x0000000000100000UL
505 #define   PA6T_MMCR0_TRGEN	0x0000000000200000UL
506 #define   PA6T_MMCR0_TRGREG	0x0000000001600000UL
507 #define   PA6T_MMCR0_SIARLOG	0x0000000002000000UL
508 #define   PA6T_MMCR0_SDARLOG	0x0000000004000000UL
509 #define   PA6T_MMCR0_PROEN	0x0000000008000000UL
510 #define   PA6T_MMCR0_PROLOG	0x0000000010000000UL
511 #define   PA6T_MMCR0_DAMEN2	0x0000000020000000UL
512 #define   PA6T_MMCR0_DAMEN3	0x0000000040000000UL
513 #define   PA6T_MMCR0_DAMEN4	0x0000000080000000UL
514 #define   PA6T_MMCR0_DAMEN5	0x0000000100000000UL
515 #define   PA6T_MMCR0_DAMSEL2	0x0000000200000000UL
516 #define   PA6T_MMCR0_DAMSEL3	0x0000000400000000UL
517 #define   PA6T_MMCR0_DAMSEL4	0x0000000800000000UL
518 #define   PA6T_MMCR0_DAMSEL5	0x0000001000000000UL
519 #define   PA6T_MMCR0_HANDDIS	0x0000002000000000UL
520 #define   PA6T_MMCR0_PCTEN	0x0000004000000000UL
521 #define   PA6T_MMCR0_SOCEN	0x0000008000000000UL
522 #define   PA6T_MMCR0_SOCMOD	0x0000010000000000UL
523 
524 #define SPRN_PA6T_MMCR1 798
525 #define   PA6T_MMCR1_ES2	0x00000000000000ffUL
526 #define   PA6T_MMCR1_ES3	0x000000000000ff00UL
527 #define   PA6T_MMCR1_ES4	0x0000000000ff0000UL
528 #define   PA6T_MMCR1_ES5	0x00000000ff000000UL
529 
530 #define SPRN_PA6T_UPMC0 771	/* User PerfMon Counter 0 */
531 #define SPRN_PA6T_UPMC1 772	/* ... */
532 #define SPRN_PA6T_UPMC2 773
533 #define SPRN_PA6T_UPMC3 774
534 #define SPRN_PA6T_UPMC4 775
535 #define SPRN_PA6T_UPMC5 776
536 #define SPRN_PA6T_UMMCR0 779	/* User Monitor Mode Control Register 0 */
537 #define SPRN_PA6T_SIAR	780	/* Sampled Instruction Address */
538 #define SPRN_PA6T_UMMCR1 782	/* User Monitor Mode Control Register 1 */
539 #define SPRN_PA6T_SIER	785	/* Sampled Instruction Event Register */
540 #define SPRN_PA6T_PMC0	787
541 #define SPRN_PA6T_PMC1	788
542 #define SPRN_PA6T_PMC2	789
543 #define SPRN_PA6T_PMC3	790
544 #define SPRN_PA6T_PMC4	791
545 #define SPRN_PA6T_PMC5	792
546 #define SPRN_PA6T_TSR0	793	/* Timestamp Register 0 */
547 #define SPRN_PA6T_TSR1	794	/* Timestamp Register 1 */
548 #define SPRN_PA6T_TSR2	799	/* Timestamp Register 2 */
549 #define SPRN_PA6T_TSR3	784	/* Timestamp Register 3 */
550 
551 #define SPRN_PA6T_IER	981	/* Icache Error Register */
552 #define SPRN_PA6T_DER	982	/* Dcache Error Register */
553 #define SPRN_PA6T_BER	862	/* BIU Error Address Register */
554 #define SPRN_PA6T_MER	849	/* MMU Error Register */
555 
556 #define SPRN_PA6T_IMA0	880	/* Instruction Match Array 0 */
557 #define SPRN_PA6T_IMA1	881	/* ... */
558 #define SPRN_PA6T_IMA2	882
559 #define SPRN_PA6T_IMA3	883
560 #define SPRN_PA6T_IMA4	884
561 #define SPRN_PA6T_IMA5	885
562 #define SPRN_PA6T_IMA6	886
563 #define SPRN_PA6T_IMA7	887
564 #define SPRN_PA6T_IMA8	888
565 #define SPRN_PA6T_IMA9	889
566 #define SPRN_PA6T_BTCR	978	/* Breakpoint and Tagging Control Register */
567 #define SPRN_PA6T_IMAAT	979	/* Instruction Match Array Action Table */
568 #define SPRN_PA6T_PCCR	1019	/* Power Counter Control Register */
569 #define SPRN_BKMK	1020	/* Cell Bookmark Register */
570 #define SPRN_PA6T_RPCCR	1021	/* Retire PC Trace Control Register */
571 
572 
573 #else /* 32-bit */
574 #define SPRN_MMCR0	952	/* Monitor Mode Control Register 0 */
575 #define   MMCR0_FC	0x80000000UL /* freeze counters */
576 #define   MMCR0_FCS	0x40000000UL /* freeze in supervisor state */
577 #define   MMCR0_FCP	0x20000000UL /* freeze in problem state */
578 #define   MMCR0_FCM1	0x10000000UL /* freeze counters while MSR mark = 1 */
579 #define   MMCR0_FCM0	0x08000000UL /* freeze counters while MSR mark = 0 */
580 #define   MMCR0_PMXE	0x04000000UL /* performance monitor exception enable */
581 #define   MMCR0_FCECE	0x02000000UL /* freeze ctrs on enabled cond or event */
582 #define   MMCR0_TBEE	0x00400000UL /* time base exception enable */
583 #define   MMCR0_PMC1CE	0x00008000UL /* PMC1 count enable*/
584 #define   MMCR0_PMCnCE	0x00004000UL /* count enable for all but PMC 1*/
585 #define   MMCR0_TRIGGER	0x00002000UL /* TRIGGER enable */
586 #define   MMCR0_PMC1SEL	0x00001fc0UL /* PMC 1 Event */
587 #define   MMCR0_PMC2SEL	0x0000003fUL /* PMC 2 Event */
588 
589 #define SPRN_MMCR1	956
590 #define   MMCR1_PMC3SEL	0xf8000000UL /* PMC 3 Event */
591 #define   MMCR1_PMC4SEL	0x07c00000UL /* PMC 4 Event */
592 #define   MMCR1_PMC5SEL	0x003e0000UL /* PMC 5 Event */
593 #define   MMCR1_PMC6SEL 0x0001f800UL /* PMC 6 Event */
594 #define SPRN_MMCR2	944
595 #define SPRN_PMC1	953	/* Performance Counter Register 1 */
596 #define SPRN_PMC2	954	/* Performance Counter Register 2 */
597 #define SPRN_PMC3	957	/* Performance Counter Register 3 */
598 #define SPRN_PMC4	958	/* Performance Counter Register 4 */
599 #define SPRN_PMC5	945	/* Performance Counter Register 5 */
600 #define SPRN_PMC6	946	/* Performance Counter Register 6 */
601 
602 #define SPRN_SIAR	955	/* Sampled Instruction Address Register */
603 
604 /* Bit definitions for MMCR0 and PMC1 / PMC2. */
605 #define MMCR0_PMC1_CYCLES	(1 << 7)
606 #define MMCR0_PMC1_ICACHEMISS	(5 << 7)
607 #define MMCR0_PMC1_DTLB		(6 << 7)
608 #define MMCR0_PMC2_DCACHEMISS	0x6
609 #define MMCR0_PMC2_CYCLES	0x1
610 #define MMCR0_PMC2_ITLB		0x7
611 #define MMCR0_PMC2_LOADMISSTIME	0x5
612 #endif
613 
614 /*
615  * An mtfsf instruction with the L bit set. On CPUs that support this a
616  * full 64bits of FPSCR is restored and on other CPUs the L bit is ignored.
617  *
618  * Until binutils gets the new form of mtfsf, hardwire the instruction.
619  */
620 #ifdef CONFIG_PPC64
621 #define MTFSF_L(REG) \
622 	.long (0xfc00058e | ((0xff) << 17) | ((REG) << 11) | (1 << 25))
623 #else
624 #define MTFSF_L(REG)	mtfsf	0xff, (REG)
625 #endif
626 
627 /* Processor Version Register (PVR) field extraction */
628 
629 #define PVR_VER(pvr)	(((pvr) >>  16) & 0xFFFF)	/* Version field */
630 #define PVR_REV(pvr)	(((pvr) >>   0) & 0xFFFF)	/* Revison field */
631 
632 #define __is_processor(pv)	(PVR_VER(mfspr(SPRN_PVR)) == (pv))
633 
634 /*
635  * IBM has further subdivided the standard PowerPC 16-bit version and
636  * revision subfields of the PVR for the PowerPC 403s into the following:
637  */
638 
639 #define PVR_FAM(pvr)	(((pvr) >> 20) & 0xFFF)	/* Family field */
640 #define PVR_MEM(pvr)	(((pvr) >> 16) & 0xF)	/* Member field */
641 #define PVR_CORE(pvr)	(((pvr) >> 12) & 0xF)	/* Core field */
642 #define PVR_CFG(pvr)	(((pvr) >>  8) & 0xF)	/* Configuration field */
643 #define PVR_MAJ(pvr)	(((pvr) >>  4) & 0xF)	/* Major revision field */
644 #define PVR_MIN(pvr)	(((pvr) >>  0) & 0xF)	/* Minor revision field */
645 
646 /* Processor Version Numbers */
647 
648 #define PVR_403GA	0x00200000
649 #define PVR_403GB	0x00200100
650 #define PVR_403GC	0x00200200
651 #define PVR_403GCX	0x00201400
652 #define PVR_405GP	0x40110000
653 #define PVR_STB03XXX	0x40310000
654 #define PVR_NP405H	0x41410000
655 #define PVR_NP405L	0x41610000
656 #define PVR_601		0x00010000
657 #define PVR_602		0x00050000
658 #define PVR_603		0x00030000
659 #define PVR_603e	0x00060000
660 #define PVR_603ev	0x00070000
661 #define PVR_603r	0x00071000
662 #define PVR_604		0x00040000
663 #define PVR_604e	0x00090000
664 #define PVR_604r	0x000A0000
665 #define PVR_620		0x00140000
666 #define PVR_740		0x00080000
667 #define PVR_750		PVR_740
668 #define PVR_740P	0x10080000
669 #define PVR_750P	PVR_740P
670 #define PVR_7400	0x000C0000
671 #define PVR_7410	0x800C0000
672 #define PVR_7450	0x80000000
673 #define PVR_8540	0x80200000
674 #define PVR_8560	0x80200000
675 /*
676  * For the 8xx processors, all of them report the same PVR family for
677  * the PowerPC core. The various versions of these processors must be
678  * differentiated by the version number in the Communication Processor
679  * Module (CPM).
680  */
681 #define PVR_821		0x00500000
682 #define PVR_823		PVR_821
683 #define PVR_850		PVR_821
684 #define PVR_860		PVR_821
685 #define PVR_8240	0x00810100
686 #define PVR_8245	0x80811014
687 #define PVR_8260	PVR_8240
688 
689 /* 64-bit processors */
690 /* XXX the prefix should be PVR_, we'll do a global sweep to fix it one day */
691 #define PV_NORTHSTAR	0x0033
692 #define PV_PULSAR	0x0034
693 #define PV_POWER4	0x0035
694 #define PV_ICESTAR	0x0036
695 #define PV_SSTAR	0x0037
696 #define PV_POWER4p	0x0038
697 #define PV_970		0x0039
698 #define PV_POWER5	0x003A
699 #define PV_POWER5p	0x003B
700 #define PV_970FX	0x003C
701 #define PV_630		0x0040
702 #define PV_630p	0x0041
703 #define PV_970MP	0x0044
704 #define PV_970GX	0x0045
705 #define PV_BE		0x0070
706 #define PV_PA6T		0x0090
707 
708 /* Macros for setting and retrieving special purpose registers */
709 #ifndef __ASSEMBLY__
710 #define mfmsr()		({unsigned long rval; \
711 			asm volatile("mfmsr %0" : "=r" (rval)); rval;})
712 #ifdef CONFIG_PPC64
713 #define __mtmsrd(v, l)	asm volatile("mtmsrd %0," __stringify(l) \
714 				     : : "r" (v))
715 #define mtmsrd(v)	__mtmsrd((v), 0)
716 #define mtmsr(v)	mtmsrd(v)
717 #else
718 #define mtmsr(v)	asm volatile("mtmsr %0" : : "r" (v))
719 #endif
720 
721 #define mfspr(rn)	({unsigned long rval; \
722 			asm volatile("mfspr %0," __stringify(rn) \
723 				: "=r" (rval)); rval;})
724 #define mtspr(rn, v)	asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
725 
726 #ifdef __powerpc64__
727 #ifdef CONFIG_PPC_CELL
728 #define mftb()		({unsigned long rval;				\
729 			asm volatile(					\
730 				"90:	mftb %0;\n"			\
731 				"97:	cmpwi %0,0;\n"			\
732 				"	beq- 90b;\n"			\
733 				"99:\n"					\
734 				".section __ftr_fixup,\"a\"\n"		\
735 				".align 3\n"				\
736 				"98:\n"					\
737 				"	.llong %1\n"			\
738 				"	.llong %1\n"			\
739 				"	.llong 97b-98b\n"		\
740 				"	.llong 99b-98b\n"		\
741 				"	.llong 0\n"			\
742 				"	.llong 0\n"			\
743 				".previous"				\
744 			: "=r" (rval) : "i" (CPU_FTR_CELL_TB_BUG)); rval;})
745 #else
746 #define mftb()		({unsigned long rval;	\
747 			asm volatile("mftb %0" : "=r" (rval)); rval;})
748 #endif /* !CONFIG_PPC_CELL */
749 
750 #else /* __powerpc64__ */
751 
752 #define mftbl()		({unsigned long rval;	\
753 			asm volatile("mftbl %0" : "=r" (rval)); rval;})
754 #define mftbu()		({unsigned long rval;	\
755 			asm volatile("mftbu %0" : "=r" (rval)); rval;})
756 #endif /* !__powerpc64__ */
757 
758 #define mttbl(v)	asm volatile("mttbl %0":: "r"(v))
759 #define mttbu(v)	asm volatile("mttbu %0":: "r"(v))
760 
761 #ifdef CONFIG_PPC32
762 #define mfsrin(v)	({unsigned int rval; \
763 			asm volatile("mfsrin %0,%1" : "=r" (rval) : "r" (v)); \
764 					rval;})
765 #endif
766 
767 #define proc_trap()	asm volatile("trap")
768 
769 #ifdef CONFIG_PPC64
770 
771 extern void ppc64_runlatch_on(void);
772 extern void ppc64_runlatch_off(void);
773 
774 extern unsigned long scom970_read(unsigned int address);
775 extern void scom970_write(unsigned int address, unsigned long value);
776 
777 #else
778 #define ppc64_runlatch_on()
779 #define ppc64_runlatch_off()
780 
781 #endif /* CONFIG_PPC64 */
782 
783 #define __get_SP()	({unsigned long sp; \
784 			asm volatile("mr %0,1": "=r" (sp)); sp;})
785 
786 struct pt_regs;
787 
788 extern void ppc_save_regs(struct pt_regs *regs);
789 
790 #endif /* __ASSEMBLY__ */
791 #endif /* __KERNEL__ */
792 #endif /* _ASM_POWERPC_REG_H */
793