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arm64: Add RV and RN fields for ESR_ELx_WFx_ISS

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The ISS field exposed by ESR_ELx contain two additional subfields
with FEAT_WFxT:

- RN, the register number containing the timeout
- RV, indicating if the register number is valid

Describe these two fields according to the arch spec.

No functional change.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220419182755.601427-3-maz@kernel.org
This commit is contained in:
Marc Zyngier 2022-04-19 19:27:47 +01:00
parent 6a437208cb
commit bdcc2f2803
1 changed files with 2 additions and 0 deletions
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2
arch/arm64/include/asm/esr.h
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@ -133,6 +133,8 @@
#define ESR_ELx_CV (UL(1) << 24)
#define ESR_ELx_COND_SHIFT (20)
#define ESR_ELx_COND_MASK (UL(0xF) << ESR_ELx_COND_SHIFT)
#define ESR_ELx_WFx_ISS_RN (UL(0x1F) << 5)
#define ESR_ELx_WFx_ISS_RV (UL(1) << 2)
#define ESR_ELx_WFx_ISS_TI (UL(3) << 0)
#define ESR_ELx_WFx_ISS_WFxT (UL(2) << 0)
#define ESR_ELx_WFx_ISS_WFI (UL(0) << 0)