arm64: kill config_sctlr_el1()

Now that we have sysreg_clear_set(), we can consistently use this
instead of config_sctlr_el1().

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Dave Martin <dave.martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index fefc17d..e205ec8 100644 (file)
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -742,16 +742,6 @@ asm(
                write_sysreg(__scs_new, sysreg);                        \
 } while (0)
 
-static inline void config_sctlr_el1(u32 clear, u32 set)
-{
-       u32 val;
-
-       val = read_sysreg(sctlr_el1);
-       val &= ~clear;
-       val |= set;
-       write_sysreg(val, sctlr_el1);
-}
-
 #endif
 
 #endif /* __ASM_SYSREG_H */

diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index d2c0938..92be1d1 100644 (file)
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -511,9 +511,9 @@ ret:
 static int cp15_barrier_set_hw_mode(bool enable)
 {
        if (enable)
-               config_sctlr_el1(0, SCTLR_EL1_CP15BEN);
+               sysreg_clear_set(sctlr_el1, 0, SCTLR_EL1_CP15BEN);
        else
-               config_sctlr_el1(SCTLR_EL1_CP15BEN, 0);
+               sysreg_clear_set(sctlr_el1, SCTLR_EL1_CP15BEN, 0);
        return 0;
 }
 
@@ -548,9 +548,9 @@ static int setend_set_hw_mode(bool enable)
                return -EINVAL;
 
        if (enable)
-               config_sctlr_el1(SCTLR_EL1_SED, 0);
+               sysreg_clear_set(sctlr_el1, SCTLR_EL1_SED, 0);
        else
-               config_sctlr_el1(0, SCTLR_EL1_SED);
+               sysreg_clear_set(sctlr_el1, 0, SCTLR_EL1_SED);
        return 0;
 }
 

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 94876ab..dec1089 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -82,8 +82,7 @@ has_mismatched_cache_type(const struct arm64_cpu_capabilities *entry,
 static void
 cpu_enable_trap_ctr_access(const struct arm64_cpu_capabilities *__unused)
 {
-       /* Clear SCTLR_EL1.UCT */
-       config_sctlr_el1(SCTLR_EL1_UCT, 0);
+       sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCT, 0);
 }
 
 atomic_t arm64_el2_vector_last_slot = ATOMIC_INIT(-1);

diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index d399d45..c272927 100644 (file)
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -411,7 +411,7 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 
 void cpu_enable_cache_maint_trap(const struct arm64_cpu_capabilities *__unused)
 {
-       config_sctlr_el1(SCTLR_EL1_UCI, 0);
+       sysreg_clear_set(sctlr_el1, SCTLR_EL1_UCI, 0);
 }
 
 #define __user_cache_maint(insn, address, res)                 \

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index b8eecc7..ea591c9 100644 (file)
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -879,7 +879,7 @@ void cpu_enable_pan(const struct arm64_cpu_capabilities *__unused)
         */
        WARN_ON_ONCE(in_interrupt());
 
-       config_sctlr_el1(SCTLR_EL1_SPAN, 0);
+       sysreg_clear_set(sctlr_el1, SCTLR_EL1_SPAN, 0);
        asm(SET_PSTATE_PAN(1));
 }
 #endif /* CONFIG_ARM64_PAN */