From 1cc6ed90dd7313055dec0174e2cda745ebadd6b0 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Fri, 4 Mar 2016 12:54:05 +0000 Subject: arm64: make mrs_s prefixing implicit in read_cpuid Commit 0f54b14e76f5302a ("arm64: cpufeature: Change read_cpuid() to use sysreg's mrs_s macro") changed read_cpuid to require a SYS_ prefix on register names, to allow manual assembly of registers unknown by the toolchain, using tables in sysreg.h. This interacts poorly with commit 42b55734030c1f72 ("efi/arm64: Check for h/w support before booting a >4 KB granular kernel"), which is curretly queued via the tip tree, and uses read_cpuid without a SYS_ prefix. Due to this, a build of next-20160304 fails if EFI and 64K pages are selected. To avoid this issue when trees are merged, move the required SYS_ prefixing into read_cpuid, and revert all of the updated callsites to pass plain register names. This effectively reverts the bulk of commit 0f54b14e76f5302a. Signed-off-by: Mark Rutland Cc: James Morse Signed-off-by: Catalin Marinas --- arch/arm64/kernel/cpufeature.c | 60 +++++++++++++++++++++--------------------- 1 file changed, 30 insertions(+), 30 deletions(-) (limited to 'arch/arm64/kernel/cpufeature.c') diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 3c9d70883276..392c67eb9fa6 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -855,36 +855,36 @@ static inline void set_sys_caps_initialised(void) static u64 __raw_read_system_reg(u32 sys_id) { switch (sys_id) { - case SYS_ID_PFR0_EL1: return read_cpuid(SYS_ID_PFR0_EL1); - case SYS_ID_PFR1_EL1: return read_cpuid(SYS_ID_PFR1_EL1); - case SYS_ID_DFR0_EL1: return read_cpuid(SYS_ID_DFR0_EL1); - case SYS_ID_MMFR0_EL1: return read_cpuid(SYS_ID_MMFR0_EL1); - case SYS_ID_MMFR1_EL1: return read_cpuid(SYS_ID_MMFR1_EL1); - case SYS_ID_MMFR2_EL1: return read_cpuid(SYS_ID_MMFR2_EL1); - case SYS_ID_MMFR3_EL1: return read_cpuid(SYS_ID_MMFR3_EL1); - case SYS_ID_ISAR0_EL1: return read_cpuid(SYS_ID_ISAR0_EL1); - case SYS_ID_ISAR1_EL1: return read_cpuid(SYS_ID_ISAR1_EL1); - case SYS_ID_ISAR2_EL1: return read_cpuid(SYS_ID_ISAR2_EL1); - case SYS_ID_ISAR3_EL1: return read_cpuid(SYS_ID_ISAR3_EL1); - case SYS_ID_ISAR4_EL1: return read_cpuid(SYS_ID_ISAR4_EL1); - case SYS_ID_ISAR5_EL1: return read_cpuid(SYS_ID_ISAR4_EL1); - case SYS_MVFR0_EL1: return read_cpuid(SYS_MVFR0_EL1); - case SYS_MVFR1_EL1: return read_cpuid(SYS_MVFR1_EL1); - case SYS_MVFR2_EL1: return read_cpuid(SYS_MVFR2_EL1); - - case SYS_ID_AA64PFR0_EL1: return read_cpuid(SYS_ID_AA64PFR0_EL1); - case SYS_ID_AA64PFR1_EL1: return read_cpuid(SYS_ID_AA64PFR0_EL1); - case SYS_ID_AA64DFR0_EL1: return read_cpuid(SYS_ID_AA64DFR0_EL1); - case SYS_ID_AA64DFR1_EL1: return read_cpuid(SYS_ID_AA64DFR0_EL1); - case SYS_ID_AA64MMFR0_EL1: return read_cpuid(SYS_ID_AA64MMFR0_EL1); - case SYS_ID_AA64MMFR1_EL1: return read_cpuid(SYS_ID_AA64MMFR1_EL1); - case SYS_ID_AA64MMFR2_EL1: return read_cpuid(SYS_ID_AA64MMFR2_EL1); - case SYS_ID_AA64ISAR0_EL1: return read_cpuid(SYS_ID_AA64ISAR0_EL1); - case SYS_ID_AA64ISAR1_EL1: return read_cpuid(SYS_ID_AA64ISAR1_EL1); - - case SYS_CNTFRQ_EL0: return read_cpuid(SYS_CNTFRQ_EL0); - case SYS_CTR_EL0: return read_cpuid(SYS_CTR_EL0); - case SYS_DCZID_EL0: return read_cpuid(SYS_DCZID_EL0); + case SYS_ID_PFR0_EL1: return read_cpuid(ID_PFR0_EL1); + case SYS_ID_PFR1_EL1: return read_cpuid(ID_PFR1_EL1); + case SYS_ID_DFR0_EL1: return read_cpuid(ID_DFR0_EL1); + case SYS_ID_MMFR0_EL1: return read_cpuid(ID_MMFR0_EL1); + case SYS_ID_MMFR1_EL1: return read_cpuid(ID_MMFR1_EL1); + case SYS_ID_MMFR2_EL1: return read_cpuid(ID_MMFR2_EL1); + case SYS_ID_MMFR3_EL1: return read_cpuid(ID_MMFR3_EL1); + case SYS_ID_ISAR0_EL1: return read_cpuid(ID_ISAR0_EL1); + case SYS_ID_ISAR1_EL1: return read_cpuid(ID_ISAR1_EL1); + case SYS_ID_ISAR2_EL1: return read_cpuid(ID_ISAR2_EL1); + case SYS_ID_ISAR3_EL1: return read_cpuid(ID_ISAR3_EL1); + case SYS_ID_ISAR4_EL1: return read_cpuid(ID_ISAR4_EL1); + case SYS_ID_ISAR5_EL1: return read_cpuid(ID_ISAR4_EL1); + case SYS_MVFR0_EL1: return read_cpuid(MVFR0_EL1); + case SYS_MVFR1_EL1: return read_cpuid(MVFR1_EL1); + case SYS_MVFR2_EL1: return read_cpuid(MVFR2_EL1); + + case SYS_ID_AA64PFR0_EL1: return read_cpuid(ID_AA64PFR0_EL1); + case SYS_ID_AA64PFR1_EL1: return read_cpuid(ID_AA64PFR0_EL1); + case SYS_ID_AA64DFR0_EL1: return read_cpuid(ID_AA64DFR0_EL1); + case SYS_ID_AA64DFR1_EL1: return read_cpuid(ID_AA64DFR0_EL1); + case SYS_ID_AA64MMFR0_EL1: return read_cpuid(ID_AA64MMFR0_EL1); + case SYS_ID_AA64MMFR1_EL1: return read_cpuid(ID_AA64MMFR1_EL1); + case SYS_ID_AA64MMFR2_EL1: return read_cpuid(ID_AA64MMFR2_EL1); + case SYS_ID_AA64ISAR0_EL1: return read_cpuid(ID_AA64ISAR0_EL1); + case SYS_ID_AA64ISAR1_EL1: return read_cpuid(ID_AA64ISAR1_EL1); + + case SYS_CNTFRQ_EL0: return read_cpuid(CNTFRQ_EL0); + case SYS_CTR_EL0: return read_cpuid(CTR_EL0); + case SYS_DCZID_EL0: return read_cpuid(DCZID_EL0); default: BUG(); return 0; -- cgit v1.2.3