arm64/sysreg: Add SYS_FIELD_GET() helper

Add a SYS_FIELD_GET() helper to match SYS_FIELD_PREP(), providing a
simplified interface to FIELD_GET() when using the generated defines
with standardized naming.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20220704170302.2609529-5-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 42ff95dba6da41a95785188df0b6e94b484c7e29..58286c83d592d4b41d00cf4365642be010fede4b 100644 (file)
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -1324,6 +1324,9 @@
 
 #endif
 
+#define SYS_FIELD_GET(reg, field, val)         \
+                FIELD_GET(reg##_##field##_MASK, val)
+
 #define SYS_FIELD_PREP(reg, field, val)                \
                 FIELD_PREP(reg##_##field##_MASK, val)