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| author | Dave P Martin <Dave.Martin@arm.com> | 2015-07-24 16:37:42 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-27 11:08:42 +0100 |
| commit | dfac68314c969481fcce3dd528728dfa9d85caf5 (patch) | |
| tree | c688b6bd22a6d36ee0074474828639c7f61f80c6 /arch/arm64/include/asm/debug-monitors.h | |
| parent | 951757ae83ec611b1c4f1dcfda67246cf5157451 (diff) | |
| download | linux-dfac68314c969481fcce3dd528728dfa9d85caf5.tar.bz2 | |
arm64/debug: Mask off all reserved bits from generated ESR values
There are only 16 comment bits in a BRK instruction, which
correspond to ESR bits 15:0. Bits 24:16 of the ESR are RES0,
and might have weird meanings in the future.
This code inserts 16 bits of comment in the ESR value instead of
20 (almost certainly a typo in the original code).
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/debug-monitors.h')
| -rw-r--r-- | arch/arm64/include/asm/debug-monitors.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/debug-monitors.h b/arch/arm64/include/asm/debug-monitors.h index f3d2dbd5f0a7..ab7d5a875f8d 100644 --- a/arch/arm64/include/asm/debug-monitors.h +++ b/arch/arm64/include/asm/debug-monitors.h @@ -45,7 +45,7 @@ /* * ESR values expected for dynamic and compile time BRK instruction */ -#define DBG_ESR_VAL_BRK(x) (0xf2000000 | ((x) & 0xfffff)) +#define DBG_ESR_VAL_BRK(x) (0xf2000000 | ((x) & 0xffff)) /* * #imm16 values used for BRK instruction generation |