[PATCH RESEND 1/2] ARM: add CLIDR accessor functions
From: Dmitry Baryshkov <hidden>
Date: 2024-02-20 22:57:40
Also in:
linux-arm-msm
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Add functions to read the CLIDR, Cache Level ID Register. Signed-off-by: Dmitry Baryshkov <redacted> --- arch/arm/include/asm/cachetype.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h
index e8c30430be33..90203a6d7270 100644
--- a/arch/arm/include/asm/cachetype.h
+++ b/arch/arm/include/asm/cachetype.h@@ -81,6 +81,14 @@ static inline unsigned int read_ccsidr(void) asm volatile("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); return val; } + +static inline unsigned int read_clidr(void) +{ + unsigned int val; + + asm volatile("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); + return val; +} #else /* CONFIG_CPU_V7M */ #include <linux/io.h> #include "asm/v7m.h"
@@ -94,6 +102,11 @@ static inline unsigned int read_ccsidr(void) { return readl(BASEADDR_V7M_SCB + V7M_SCB_CCSIDR); } + +static inline unsigned int read_clidr(void) +{ + return readl(BASEADDR_V7M_SCB + V7M_SCB_CLIDR); +} #endif #endif
--
2.39.2
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