[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH v1 06/15] arm64: Add accessors for the ICH_APxRn_EL2 registers
This patch is ported to xen from linux commit 63000dd8006dc987db31ba670edc23142ea91e01 As we're about to access the Active Priority registers a lot more, let's define accessors that take the register number as a parameter. This patch only has accessors, another patch will have register trap handlers Signed-off-by: Manish Jaggi <manish.jaggi@xxxxxxxxxx> diff --git a/xen/arch/arm/arm64/vgic-v3-sr.c b/xen/arch/arm/arm64/vgic-v3-sr.c index 114d5107a9..1aaade40dc 100644 --- a/xen/arch/arm/arm64/vgic-v3-sr.c +++ b/xen/arch/arm/arm64/vgic-v3-sr.c @@ -114,6 +114,98 @@ void handle_igrpen1(struct cpu_user_regs *regs, int regidx, __vgic_v3_write_igrpen1(regs, regidx); } +void __vgic_v3_write_ap0rn(uint32_t val, int n) +{ + switch (n) + { + case 0: + WRITE_SYSREG32(val, ICH_AP0R0_EL2); + break; + case 1: + WRITE_SYSREG32(val, ICH_AP0R1_EL2); + break; + case 2: + WRITE_SYSREG32(val, ICH_AP0R2_EL2); + break; + case 3: + WRITE_SYSREG32(val, ICH_AP0R3_EL2); + break; + default: + unreachable(); + } +} + +void __vgic_v3_write_ap1rn(uint32_t val, int n) +{ + switch (n) + { + case 0: + WRITE_SYSREG32(val, ICH_AP1R0_EL2); + break; + case 1: + WRITE_SYSREG32(val, ICH_AP1R1_EL2); + break; + case 2: + WRITE_SYSREG32(val, ICH_AP1R2_EL2); + break; + case 3: + WRITE_SYSREG32(val, ICH_AP1R3_EL2); + break; + default: + unreachable(); + } +} + +uint32_t __vgic_v3_read_ap0rn(int n) +{ + uint32_t val; + + switch (n) + { + case 0: + val = READ_SYSREG32(ICH_AP0R0_EL2); + break; + case 1: + val = READ_SYSREG32(ICH_AP0R1_EL2); + break; + case 2: + val = READ_SYSREG32(ICH_AP0R2_EL2); + break; + case 3: + val = READ_SYSREG32(ICH_AP0R3_EL2); + break; + default: + unreachable(); + } + + return val; +} + +uint32_t __vgic_v3_read_ap1rn(int n) +{ + uint32_t val; + + switch (n) + { + case 0: + val = READ_SYSREG32(ICH_AP1R0_EL2); + break; + case 1: + val = READ_SYSREG32(ICH_AP1R1_EL2); + break; + case 2: + val = READ_SYSREG32(ICH_AP1R2_EL2); + break; + case 3: + val = READ_SYSREG32(ICH_AP1R3_EL2); + break; + default: + unreachable(); + } + + return val; +} + bool vgic_v3_handle_cpuif_access(struct cpu_user_regs *regs, const union hsr hsr) { bool ret = true; -- 2.14.1 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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