X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-powerpc%2Fppc_asm.h;h=0966899d974b07050e79003c1d50eb267dbb1b6e;hb=8f616cd5249e03c9e1b371623d85e76d4b86bbc1;hp=2dbd4e7884faee59e96e53b391e1495bee1307e2;hpb=37e58df30063e229ee5157f9d1c1fa1d749917c2;p=linux-2.6

diff --git a/include/asm-powerpc/ppc_asm.h b/include/asm-powerpc/ppc_asm.h
index 2dbd4e7884..0966899d97 100644
--- a/include/asm-powerpc/ppc_asm.h
+++ b/include/asm-powerpc/ppc_asm.h
@@ -6,6 +6,7 @@
 
 #include <linux/stringify.h>
 #include <asm/asm-compat.h>
+#include <asm/processor.h>
 
 #ifndef __ASSEMBLY__
 #error __FILE__ should only be used in assembler files
@@ -73,6 +74,15 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
 				REST_10GPRS(22, base)
 #endif
 
+/*
+ * Define what the VSX XX1 form instructions will look like, then add
+ * the 128 bit load store instructions based on that.
+ */
+#define VSX_XX1(xs, ra, rb)	(((xs) & 0x1f) << 21 | ((ra) << 16) |  \
+				 ((rb) << 11) | (((xs) >> 5)))
+
+#define STXVD2X(xs, ra, rb)	.long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
+#define LXVD2X(xs, ra, rb)	.long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
 
 #define SAVE_2GPRS(n, base)	SAVE_GPR(n, base); SAVE_GPR(n+1, base)
 #define SAVE_4GPRS(n, base)	SAVE_2GPRS(n, base); SAVE_2GPRS(n+2, base)
@@ -83,13 +93,13 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
 #define REST_8GPRS(n, base)	REST_4GPRS(n, base); REST_4GPRS(n+4, base)
 #define REST_10GPRS(n, base)	REST_8GPRS(n, base); REST_2GPRS(n+8, base)
 
-#define SAVE_FPR(n, base)	stfd	n,THREAD_FPR0+8*(n)(base)
+#define SAVE_FPR(n, base)	stfd	n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
 #define SAVE_2FPRS(n, base)	SAVE_FPR(n, base); SAVE_FPR(n+1, base)
 #define SAVE_4FPRS(n, base)	SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
 #define SAVE_8FPRS(n, base)	SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
 #define SAVE_16FPRS(n, base)	SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
 #define SAVE_32FPRS(n, base)	SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
-#define REST_FPR(n, base)	lfd	n,THREAD_FPR0+8*(n)(base)
+#define REST_FPR(n, base)	lfd	n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
 #define REST_2FPRS(n, base)	REST_FPR(n, base); REST_FPR(n+1, base)
 #define REST_4FPRS(n, base)	REST_2FPRS(n, base); REST_2FPRS(n+2, base)
 #define REST_8FPRS(n, base)	REST_4FPRS(n, base); REST_4FPRS(n+4, base)
@@ -109,6 +119,33 @@ END_FTR_SECTION_IFCLR(CPU_FTR_PURR);					\
 #define REST_16VRS(n,b,base)	REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
 #define REST_32VRS(n,b,base)	REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
 
+/* Save the lower 32 VSRs in the thread VSR region */
+#define SAVE_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n));  STXVD2X(n,b,base)
+#define SAVE_2VSRS(n,b,base)	SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base)
+#define SAVE_4VSRS(n,b,base)	SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base)
+#define SAVE_8VSRS(n,b,base)	SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base)
+#define SAVE_16VSRS(n,b,base)	SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base)
+#define SAVE_32VSRS(n,b,base)	SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base)
+#define REST_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n)); LXVD2X(n,b,base)
+#define REST_2VSRS(n,b,base)	REST_VSR(n,b,base); REST_VSR(n+1,b,base)
+#define REST_4VSRS(n,b,base)	REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base)
+#define REST_8VSRS(n,b,base)	REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base)
+#define REST_16VSRS(n,b,base)	REST_8VSRS(n,b,base); REST_8VSRS(n+8,b,base)
+#define REST_32VSRS(n,b,base)	REST_16VSRS(n,b,base); REST_16VSRS(n+16,b,base)
+/* Save the upper 32 VSRs (32-63) in the thread VSX region (0-31) */
+#define SAVE_VSRU(n,b,base)	li b,THREAD_VR0+(16*(n));  STXVD2X(n+32,b,base)
+#define SAVE_2VSRSU(n,b,base)	SAVE_VSRU(n,b,base); SAVE_VSRU(n+1,b,base)
+#define SAVE_4VSRSU(n,b,base)	SAVE_2VSRSU(n,b,base); SAVE_2VSRSU(n+2,b,base)
+#define SAVE_8VSRSU(n,b,base)	SAVE_4VSRSU(n,b,base); SAVE_4VSRSU(n+4,b,base)
+#define SAVE_16VSRSU(n,b,base)	SAVE_8VSRSU(n,b,base); SAVE_8VSRSU(n+8,b,base)
+#define SAVE_32VSRSU(n,b,base)	SAVE_16VSRSU(n,b,base); SAVE_16VSRSU(n+16,b,base)
+#define REST_VSRU(n,b,base)	li b,THREAD_VR0+(16*(n)); LXVD2X(n+32,b,base)
+#define REST_2VSRSU(n,b,base)	REST_VSRU(n,b,base); REST_VSRU(n+1,b,base)
+#define REST_4VSRSU(n,b,base)	REST_2VSRSU(n,b,base); REST_2VSRSU(n+2,b,base)
+#define REST_8VSRSU(n,b,base)	REST_4VSRSU(n,b,base); REST_4VSRSU(n+4,b,base)
+#define REST_16VSRSU(n,b,base)	REST_8VSRSU(n,b,base); REST_8VSRSU(n+8,b,base)
+#define REST_32VSRSU(n,b,base)	REST_16VSRSU(n,b,base); REST_16VSRSU(n+16,b,base)
+
 #define SAVE_EVR(n,s,base)	evmergehi s,s,n; stw s,THREAD_EVR0+4*(n)(base)
 #define SAVE_2EVRS(n,s,base)	SAVE_EVR(n,s,base); SAVE_EVR(n+1,s,base)
 #define SAVE_4EVRS(n,s,base)	SAVE_2EVRS(n,s,base); SAVE_2EVRS(n+2,s,base)
@@ -356,6 +393,12 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define toreal(rd)
 #define fromreal(rd)
 
+/*
+ * We use addis to ensure compatibility with the "classic" ppc versions of
+ * these macros, which use rs = 0 to get the tophys offset in rd, rather than
+ * converting the address in r0, and so this version has to do that too
+ * (i.e. set register rd to 0 when rs == 0).
+ */
 #define tophys(rd,rs)				\
 	addis	rd,rs,0
 
@@ -533,6 +576,73 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define	vr30	30
 #define	vr31	31
 
+/* VSX Registers (VSRs) */
+
+#define	vsr0	0
+#define	vsr1	1
+#define	vsr2	2
+#define	vsr3	3
+#define	vsr4	4
+#define	vsr5	5
+#define	vsr6	6
+#define	vsr7	7
+#define	vsr8	8
+#define	vsr9	9
+#define	vsr10	10
+#define	vsr11	11
+#define	vsr12	12
+#define	vsr13	13
+#define	vsr14	14
+#define	vsr15	15
+#define	vsr16	16
+#define	vsr17	17
+#define	vsr18	18
+#define	vsr19	19
+#define	vsr20	20
+#define	vsr21	21
+#define	vsr22	22
+#define	vsr23	23
+#define	vsr24	24
+#define	vsr25	25
+#define	vsr26	26
+#define	vsr27	27
+#define	vsr28	28
+#define	vsr29	29
+#define	vsr30	30
+#define	vsr31	31
+#define	vsr32	32
+#define	vsr33	33
+#define	vsr34	34
+#define	vsr35	35
+#define	vsr36	36
+#define	vsr37	37
+#define	vsr38	38
+#define	vsr39	39
+#define	vsr40	40
+#define	vsr41	41
+#define	vsr42	42
+#define	vsr43	43
+#define	vsr44	44
+#define	vsr45	45
+#define	vsr46	46
+#define	vsr47	47
+#define	vsr48	48
+#define	vsr49	49
+#define	vsr50	50
+#define	vsr51	51
+#define	vsr52	52
+#define	vsr53	53
+#define	vsr54	54
+#define	vsr55	55
+#define	vsr56	56
+#define	vsr57	57
+#define	vsr58	58
+#define	vsr59	59
+#define	vsr60	60
+#define	vsr61	61
+#define	vsr62	62
+#define	vsr63	63
+
 /* SPE Registers (EVPRs) */
 
 #define	evr0	0