[xen staging] xen/arm: Use READ_SYSREG instead of 32/64 versions

[patchbot@xxxxxxx]

commit a9f1f03b2710f5ce84f69c1c4516349531053fac
Author:     Bertrand Marquis <bertrand.marquis@xxxxxxx>
AuthorDate: Thu Dec 17 15:38:01 2020 +0000
Commit:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
CommitDate: Mon Jan 4 11:22:49 2021 -0800

    xen/arm: Use READ_SYSREG instead of 32/64 versions
    
    Modify identify_cpu function to use READ_SYSREG instead of READ_SYSREG32
    or READ_SYSREG64.
    
    All aarch32 specific registers (for example ID_PFR0_EL1) are 64bit when
    accessed from aarch64 with upper bits read as 0, so it is right to
    access them as 64bit registers on a 64bit platform.
    
    Signed-off-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/arch/arm/cpufeature.c | 50 +++++++++++++++++++++++------------------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/xen/arch/arm/cpufeature.c b/xen/arch/arm/cpufeature.c
index 44126dbf07..115e1b164d 100644
--- a/xen/arch/arm/cpufeature.c
+++ b/xen/arch/arm/cpufeature.c
@@ -99,44 +99,44 @@ int enable_nonboot_cpu_caps(const struct 
arm_cpu_capabilities *caps)
 
 void identify_cpu(struct cpuinfo_arm *c)
 {
-        c->midr.bits = READ_SYSREG32(MIDR_EL1);
+        c->midr.bits = READ_SYSREG(MIDR_EL1);
         c->mpidr.bits = READ_SYSREG(MPIDR_EL1);
 
 #ifdef CONFIG_ARM_64
-        c->pfr64.bits[0] = READ_SYSREG64(ID_AA64PFR0_EL1);
-        c->pfr64.bits[1] = READ_SYSREG64(ID_AA64PFR1_EL1);
+        c->pfr64.bits[0] = READ_SYSREG(ID_AA64PFR0_EL1);
+        c->pfr64.bits[1] = READ_SYSREG(ID_AA64PFR1_EL1);
 
-        c->dbg64.bits[0] = READ_SYSREG64(ID_AA64DFR0_EL1);
-        c->dbg64.bits[1] = READ_SYSREG64(ID_AA64DFR1_EL1);
+        c->dbg64.bits[0] = READ_SYSREG(ID_AA64DFR0_EL1);
+        c->dbg64.bits[1] = READ_SYSREG(ID_AA64DFR1_EL1);
 
-        c->aux64.bits[0] = READ_SYSREG64(ID_AA64AFR0_EL1);
-        c->aux64.bits[1] = READ_SYSREG64(ID_AA64AFR1_EL1);
+        c->aux64.bits[0] = READ_SYSREG(ID_AA64AFR0_EL1);
+        c->aux64.bits[1] = READ_SYSREG(ID_AA64AFR1_EL1);
 
-        c->mm64.bits[0]  = READ_SYSREG64(ID_AA64MMFR0_EL1);
-        c->mm64.bits[1]  = READ_SYSREG64(ID_AA64MMFR1_EL1);
+        c->mm64.bits[0]  = READ_SYSREG(ID_AA64MMFR0_EL1);
+        c->mm64.bits[1]  = READ_SYSREG(ID_AA64MMFR1_EL1);
 
-        c->isa64.bits[0] = READ_SYSREG64(ID_AA64ISAR0_EL1);
-        c->isa64.bits[1] = READ_SYSREG64(ID_AA64ISAR1_EL1);
+        c->isa64.bits[0] = READ_SYSREG(ID_AA64ISAR0_EL1);
+        c->isa64.bits[1] = READ_SYSREG(ID_AA64ISAR1_EL1);
 #endif
 
-        c->pfr32.bits[0] = READ_SYSREG32(ID_PFR0_EL1);
-        c->pfr32.bits[1] = READ_SYSREG32(ID_PFR1_EL1);
+        c->pfr32.bits[0] = READ_SYSREG(ID_PFR0_EL1);
+        c->pfr32.bits[1] = READ_SYSREG(ID_PFR1_EL1);
 
-        c->dbg32.bits[0] = READ_SYSREG32(ID_DFR0_EL1);
+        c->dbg32.bits[0] = READ_SYSREG(ID_DFR0_EL1);
 
-        c->aux32.bits[0] = READ_SYSREG32(ID_AFR0_EL1);
+        c->aux32.bits[0] = READ_SYSREG(ID_AFR0_EL1);
 
-        c->mm32.bits[0]  = READ_SYSREG32(ID_MMFR0_EL1);
-        c->mm32.bits[1]  = READ_SYSREG32(ID_MMFR1_EL1);
-        c->mm32.bits[2]  = READ_SYSREG32(ID_MMFR2_EL1);
-        c->mm32.bits[3]  = READ_SYSREG32(ID_MMFR3_EL1);
+        c->mm32.bits[0]  = READ_SYSREG(ID_MMFR0_EL1);
+        c->mm32.bits[1]  = READ_SYSREG(ID_MMFR1_EL1);
+        c->mm32.bits[2]  = READ_SYSREG(ID_MMFR2_EL1);
+        c->mm32.bits[3]  = READ_SYSREG(ID_MMFR3_EL1);
 
-        c->isa32.bits[0] = READ_SYSREG32(ID_ISAR0_EL1);
-        c->isa32.bits[1] = READ_SYSREG32(ID_ISAR1_EL1);
-        c->isa32.bits[2] = READ_SYSREG32(ID_ISAR2_EL1);
-        c->isa32.bits[3] = READ_SYSREG32(ID_ISAR3_EL1);
-        c->isa32.bits[4] = READ_SYSREG32(ID_ISAR4_EL1);
-        c->isa32.bits[5] = READ_SYSREG32(ID_ISAR5_EL1);
+        c->isa32.bits[0] = READ_SYSREG(ID_ISAR0_EL1);
+        c->isa32.bits[1] = READ_SYSREG(ID_ISAR1_EL1);
+        c->isa32.bits[2] = READ_SYSREG(ID_ISAR2_EL1);
+        c->isa32.bits[3] = READ_SYSREG(ID_ISAR3_EL1);
+        c->isa32.bits[4] = READ_SYSREG(ID_ISAR4_EL1);
+        c->isa32.bits[5] = READ_SYSREG(ID_ISAR5_EL1);
 }
 
 /*
--
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