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| author | Candle Sun <candlesea@gmail.com> | 2019-10-24 08:36:28 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-11-15 22:21:08 +0000 |
| commit | bebe668eee368359d0aab06d705532ba5f510b84 (patch) | |
| tree | a123662140f9b361aac30732aa3ca5adac425f03 /arch/arm/include | |
| parent | fb033c95c94ca1ee3d16e04ebdb85d65fb55fff8 (diff) | |
| download | linux-bebe668eee368359d0aab06d705532ba5f510b84.tar.bz2 | |
ARM: 8927/1: ARM/hw_breakpoint: add more ARMv8 debug architecture versions support
When ARMv8 cores are used in AArch32 mode, arch_hw_breakpoint_init()
in arch/arm/kernel/hw_breakpoint.c will be used.
From ARMv8 specification, v8 debug architecture versions defined:
* 0110 ARMv8, v8 Debug architecture.
* 0111 ARMv8.1, v8 Debug architecture, with Virtualization Host
Extensions.
* 1000 ARMv8.2, v8.2 Debug architecture.
* 1001 ARMv8.4, v8.4 Debug architecture.
So missing ARMv8.1/ARMv8.2/ARMv8.4 cases will cause
enable_monitor_mode() returns -ENODEV,and eventually
arch_hw_breakpoint_init() will fail.
Signed-off-by: Candle Sun <candle.sun@unisoc.com>
Signed-off-by: Nianfu Bai <nianfu.bai@unisoc.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/hw_breakpoint.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h index ac54c06764e6..62358d3ca0a8 100644 --- a/arch/arm/include/asm/hw_breakpoint.h +++ b/arch/arm/include/asm/hw_breakpoint.h @@ -53,6 +53,9 @@ static inline void decode_ctrl_reg(u32 reg, #define ARM_DEBUG_ARCH_V7_MM 4 #define ARM_DEBUG_ARCH_V7_1 5 #define ARM_DEBUG_ARCH_V8 6 +#define ARM_DEBUG_ARCH_V8_1 7 +#define ARM_DEBUG_ARCH_V8_2 8 +#define ARM_DEBUG_ARCH_V8_4 9 /* Breakpoint */ #define ARM_BREAKPOINT_EXECUTE 0 |