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arm64: sysreg: add physical timer registers

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This patch adds sysreg definitions for system registers used to control
the architected physical timer. Subsequent patches will make use of
these definitions.

The encodings were taken from ARM DDI 0487A.k_iss10775, Table C5-6.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Mark Rutland 2017-03-09 16:47:06 +00:00
parent 0e9884fe63
commit 147a70ceda
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/include/asm/sysreg.h
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@ -182,6 +182,10 @@
#define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0)
#define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0)
#define SYS_CNTP_CTL_EL0 sys_reg(3, 3, 14, 2, 1)
#define SYS_CNTP_CVAL_EL0 sys_reg(3, 3, 14, 2, 2)
#define __PMEV_op2(n) ((n) & 0x7)
#define __CNTR_CRm(n) (0x8 | (((n) >> 3) & 0x3))
#define SYS_PMEVCNTRn_EL0(n) sys_reg(3, 3, 14, __CNTR_CRm(n), __PMEV_op2(n))