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| author | Nicholas Piggin <npiggin@gmail.com> | 2021-03-16 13:42:04 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-14 16:04:44 +0300 |
| commit | 8dc7f0229b7892ccb23e19c9f30511c68cc0fdcc (patch) | |
| tree | 6ef6627a2883d155912ded4ca97b7ac01b1ffe09 /arch/powerpc/include/asm/ptrace.h | |
| parent | c45ba4f44f6b9c98a5fc1511d8853ad6843c877b (diff) | |
| download | linux-8dc7f0229b7892ccb23e19c9f30511c68cc0fdcc.tar.xz | |
powerpc: remove partial register save logic
All subarchitectures always save all GPRs to pt_regs interrupt frames
now. Remove FULL_REGS and associated bits.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210316104206.407354-11-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/ptrace.h')
| -rw-r--r-- | arch/powerpc/include/asm/ptrace.h | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index c93511bf6b3b..7793d6bd2d7d 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -188,29 +188,16 @@ static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc) #ifdef __powerpc64__ #define TRAP_FLAGS_MASK 0x10 #define TRAP(regs) ((regs)->trap & ~TRAP_FLAGS_MASK) -#define FULL_REGS(regs) true -#define SET_FULL_REGS(regs) do { } while (0) -#define CHECK_FULL_REGS(regs) do { } while (0) -#define NV_REG_POISON 0xdeadbeefdeadbeefUL #else /* - * We use the least-significant bit of the trap field to indicate - * whether we have saved the full set of registers, or only a - * partial set. A 1 there means the partial set. - * On 4xx we use the next bit to indicate whether the exception + * On 4xx we use bit 1 in the trap word to indicate whether the exception * is a critical exception (1 means it is). */ -#define TRAP_FLAGS_MASK 0x1F +#define TRAP_FLAGS_MASK 0x1E #define TRAP(regs) ((regs)->trap & ~TRAP_FLAGS_MASK) -#define FULL_REGS(regs) true -#define SET_FULL_REGS(regs) do { } while (0) #define IS_CRITICAL_EXC(regs) (((regs)->trap & 2) != 0) #define IS_MCHECK_EXC(regs) (((regs)->trap & 4) != 0) #define IS_DEBUG_EXC(regs) (((regs)->trap & 8) != 0) -#define NV_REG_POISON 0xdeadbeef -#define CHECK_FULL_REGS(regs) \ -do { \ -} while (0) #endif /* __powerpc64__ */ static __always_inline void set_trap(struct pt_regs *regs, unsigned long val) |