aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/include/asm
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2025-01-27 08:50:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-01-27 08:50:19 -0800
commit816cef980d816bdb1b3121a5c406df839a85d7f5 (patch)
treefc5a2563c930ea74d7c68322820dd04242f3dc5e /arch/arm/include/asm
parent3cbb9ce2b9e3e5799f31c53aadebaddc6aad66cb (diff)
parentf520fab580c9179bacc432f3a3bf1eada73fdfcc (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux
Pull ARM updates from Russell King: - fix typos in vfpmodule.c - drop obsolete VFP accessor fallback for old assemblers - add cache line identifier register accessor functions - add cacheinfo support * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9440/1: cacheinfo fix format field mask ARM: 9433/2: implement cacheinfo support ARM: 9432/2: add CLIDR accessor functions ARM: 9438/1: assembler: Drop obsolete VFP accessor fallback ARM: 9437/1: vfp: Fix typographical errors in vfpmodule.c
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r--arch/arm/include/asm/cache.h6
-rw-r--r--arch/arm/include/asm/cachetype.h13
-rw-r--r--arch/arm/include/asm/vfp.h10
-rw-r--r--arch/arm/include/asm/vfpmacros.h11
4 files changed, 19 insertions, 21 deletions
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index e3ea34558ada..ecbc100d22a5 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -26,4 +26,10 @@
#define __read_mostly __section(".data..read_mostly")
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_ARCH_HAS_CACHE_LINE_SIZE
+int cache_line_size(void);
+#endif
+#endif
+
#endif
diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h
index b9dbe1d4c8fe..b01c59076b84 100644
--- a/arch/arm/include/asm/cachetype.h
+++ b/arch/arm/include/asm/cachetype.h
@@ -83,6 +83,14 @@ 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"
@@ -96,6 +104,11 @@ 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
diff --git a/arch/arm/include/asm/vfp.h b/arch/arm/include/asm/vfp.h
index 157ea3426158..85ccc422d4d0 100644
--- a/arch/arm/include/asm/vfp.h
+++ b/arch/arm/include/asm/vfp.h
@@ -9,16 +9,6 @@
#ifndef __ASM_VFP_H
#define __ASM_VFP_H
-#ifndef CONFIG_AS_VFP_VMRS_FPINST
-#define FPSID cr0
-#define FPSCR cr1
-#define MVFR1 cr6
-#define MVFR0 cr7
-#define FPEXC cr8
-#define FPINST cr9
-#define FPINST2 cr10
-#endif
-
/* FPSID bits */
#define FPSID_IMPLEMENTER_BIT (24)
#define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT)
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index ba0d4cb5377e..e2e1d5a3727a 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -8,7 +8,6 @@
#include <asm/vfp.h>
-#ifdef CONFIG_AS_VFP_VMRS_FPINST
.macro VFPFMRX, rd, sysreg, cond
vmrs\cond \rd, \sysreg
.endm
@@ -16,16 +15,6 @@
.macro VFPFMXR, sysreg, rd, cond
vmsr\cond \sysreg, \rd
.endm
-#else
- @ Macros to allow building with old toolkits (with no VFP support)
- .macro VFPFMRX, rd, sysreg, cond
- MRC\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMRX \rd, \sysreg
- .endm
-
- .macro VFPFMXR, sysreg, rd, cond
- MCR\cond p10, 7, \rd, \sysreg, cr0, 0 @ FMXR \sysreg, \rd
- .endm
-#endif
@ read all the working registers back into the VFP
.macro VFPFLDMIA, base, tmp