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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:33 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-08 04:21:33 +0000
commit282c335ad1bf4d21fcedff132e19995c24c09adc (patch)
treed24dc7bfbb3a6b4bfd5b46964347ada86f72d751 /arch/powerpc/kernel/fpu.S
parentAdding upstream version 4.19.289. (diff)
downloadlinux-upstream.tar.xz
linux-upstream.zip
Adding upstream version 4.19.304.upstream/4.19.304upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/powerpc/kernel/fpu.S')
-rw-r--r--arch/powerpc/kernel/fpu.S13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 529dcc21c..31275e170 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -29,6 +29,15 @@
#include <asm/feature-fixups.h>
#ifdef CONFIG_VSX
+#define __REST_1FPVSR(n,c,base) \
+BEGIN_FTR_SECTION \
+ b 2f; \
+END_FTR_SECTION_IFSET(CPU_FTR_VSX); \
+ REST_FPR(n,base); \
+ b 3f; \
+2: REST_VSR(n,c,base); \
+3:
+
#define __REST_32FPVSRS(n,c,base) \
BEGIN_FTR_SECTION \
b 2f; \
@@ -47,9 +56,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX); \
2: SAVE_32VSRS(n,c,base); \
3:
#else
+#define __REST_1FPVSR(n,b,base) REST_FPR(n, base)
#define __REST_32FPVSRS(n,b,base) REST_32FPRS(n, base)
#define __SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base)
#endif
+#define REST_1FPVSR(n,c,base) __REST_1FPVSR(n,__REG_##c,__REG_##base)
#define REST_32FPVSRS(n,c,base) __REST_32FPVSRS(n,__REG_##c,__REG_##base)
#define SAVE_32FPVSRS(n,c,base) __SAVE_32FPVSRS(n,__REG_##c,__REG_##base)
@@ -72,6 +83,7 @@ _GLOBAL(store_fp_state)
SAVE_32FPVSRS(0, R4, R3)
mffs fr0
stfd fr0,FPSTATE_FPSCR(r3)
+ REST_1FPVSR(0, R4, R3)
blr
EXPORT_SYMBOL(store_fp_state)
@@ -136,6 +148,7 @@ _GLOBAL(save_fpu)
2: SAVE_32FPVSRS(0, R4, R6)
mffs fr0
stfd fr0,FPSTATE_FPSCR(r6)
+ REST_1FPVSR(0, R4, R6)
blr
/*