--- /dev/null
+From f502ea618bf16d615d7dc6138c8988d3118fe750 Mon Sep 17 00:00:00 2001
+From: Tiezhu Yang <yangtiezhu@loongson.cn>
+Date: Sun, 26 Jan 2025 21:49:59 +0800
+Subject: LoongArch: Change 8 to 14 for LOONGARCH_MAX_{BRP,WRP}
+
+From: Tiezhu Yang <yangtiezhu@loongson.cn>
+
+commit f502ea618bf16d615d7dc6138c8988d3118fe750 upstream.
+
+The maximum number of load/store watchpoints and fetch instruction
+watchpoints is 14 each according to LoongArch Reference Manual, so
+change 8 to 14 for the related code.
+
+Link: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html#control-and-status-registers-related-to-watchpoints
+Cc: stable@vger.kernel.org
+Fixes: edffa33c7bb5 ("LoongArch: Add hardware breakpoints/watchpoints support")
+Reviewed-by: WANG Xuerui <git@xen0n.name>
+Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
+Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/loongarch/include/asm/hw_breakpoint.h | 4 -
+ arch/loongarch/include/asm/loongarch.h | 60 +++++++++++++++++++++++++++++
+ arch/loongarch/kernel/hw_breakpoint.c | 16 ++++++-
+ 3 files changed, 76 insertions(+), 4 deletions(-)
+
+--- a/arch/loongarch/include/asm/hw_breakpoint.h
++++ b/arch/loongarch/include/asm/hw_breakpoint.h
+@@ -38,8 +38,8 @@ struct arch_hw_breakpoint {
+ * Limits.
+ * Changing these will require modifications to the register accessors.
+ */
+-#define LOONGARCH_MAX_BRP 8
+-#define LOONGARCH_MAX_WRP 8
++#define LOONGARCH_MAX_BRP 14
++#define LOONGARCH_MAX_WRP 14
+
+ /* Virtual debug register bases. */
+ #define CSR_CFG_ADDR 0
+--- a/arch/loongarch/include/asm/loongarch.h
++++ b/arch/loongarch/include/asm/loongarch.h
+@@ -928,6 +928,36 @@
+ #define LOONGARCH_CSR_DB7CTRL 0x34a /* data breakpoint 7 control */
+ #define LOONGARCH_CSR_DB7ASID 0x34b /* data breakpoint 7 asid */
+
++#define LOONGARCH_CSR_DB8ADDR 0x350 /* data breakpoint 8 address */
++#define LOONGARCH_CSR_DB8MASK 0x351 /* data breakpoint 8 mask */
++#define LOONGARCH_CSR_DB8CTRL 0x352 /* data breakpoint 8 control */
++#define LOONGARCH_CSR_DB8ASID 0x353 /* data breakpoint 8 asid */
++
++#define LOONGARCH_CSR_DB9ADDR 0x358 /* data breakpoint 9 address */
++#define LOONGARCH_CSR_DB9MASK 0x359 /* data breakpoint 9 mask */
++#define LOONGARCH_CSR_DB9CTRL 0x35a /* data breakpoint 9 control */
++#define LOONGARCH_CSR_DB9ASID 0x35b /* data breakpoint 9 asid */
++
++#define LOONGARCH_CSR_DB10ADDR 0x360 /* data breakpoint 10 address */
++#define LOONGARCH_CSR_DB10MASK 0x361 /* data breakpoint 10 mask */
++#define LOONGARCH_CSR_DB10CTRL 0x362 /* data breakpoint 10 control */
++#define LOONGARCH_CSR_DB10ASID 0x363 /* data breakpoint 10 asid */
++
++#define LOONGARCH_CSR_DB11ADDR 0x368 /* data breakpoint 11 address */
++#define LOONGARCH_CSR_DB11MASK 0x369 /* data breakpoint 11 mask */
++#define LOONGARCH_CSR_DB11CTRL 0x36a /* data breakpoint 11 control */
++#define LOONGARCH_CSR_DB11ASID 0x36b /* data breakpoint 11 asid */
++
++#define LOONGARCH_CSR_DB12ADDR 0x370 /* data breakpoint 12 address */
++#define LOONGARCH_CSR_DB12MASK 0x371 /* data breakpoint 12 mask */
++#define LOONGARCH_CSR_DB12CTRL 0x372 /* data breakpoint 12 control */
++#define LOONGARCH_CSR_DB12ASID 0x373 /* data breakpoint 12 asid */
++
++#define LOONGARCH_CSR_DB13ADDR 0x378 /* data breakpoint 13 address */
++#define LOONGARCH_CSR_DB13MASK 0x379 /* data breakpoint 13 mask */
++#define LOONGARCH_CSR_DB13CTRL 0x37a /* data breakpoint 13 control */
++#define LOONGARCH_CSR_DB13ASID 0x37b /* data breakpoint 13 asid */
++
+ #define LOONGARCH_CSR_FWPC 0x380 /* instruction breakpoint config */
+ #define LOONGARCH_CSR_FWPS 0x381 /* instruction breakpoint status */
+
+@@ -971,6 +1001,36 @@
+ #define LOONGARCH_CSR_IB7CTRL 0x3ca /* inst breakpoint 7 control */
+ #define LOONGARCH_CSR_IB7ASID 0x3cb /* inst breakpoint 7 asid */
+
++#define LOONGARCH_CSR_IB8ADDR 0x3d0 /* inst breakpoint 8 address */
++#define LOONGARCH_CSR_IB8MASK 0x3d1 /* inst breakpoint 8 mask */
++#define LOONGARCH_CSR_IB8CTRL 0x3d2 /* inst breakpoint 8 control */
++#define LOONGARCH_CSR_IB8ASID 0x3d3 /* inst breakpoint 8 asid */
++
++#define LOONGARCH_CSR_IB9ADDR 0x3d8 /* inst breakpoint 9 address */
++#define LOONGARCH_CSR_IB9MASK 0x3d9 /* inst breakpoint 9 mask */
++#define LOONGARCH_CSR_IB9CTRL 0x3da /* inst breakpoint 9 control */
++#define LOONGARCH_CSR_IB9ASID 0x3db /* inst breakpoint 9 asid */
++
++#define LOONGARCH_CSR_IB10ADDR 0x3e0 /* inst breakpoint 10 address */
++#define LOONGARCH_CSR_IB10MASK 0x3e1 /* inst breakpoint 10 mask */
++#define LOONGARCH_CSR_IB10CTRL 0x3e2 /* inst breakpoint 10 control */
++#define LOONGARCH_CSR_IB10ASID 0x3e3 /* inst breakpoint 10 asid */
++
++#define LOONGARCH_CSR_IB11ADDR 0x3e8 /* inst breakpoint 11 address */
++#define LOONGARCH_CSR_IB11MASK 0x3e9 /* inst breakpoint 11 mask */
++#define LOONGARCH_CSR_IB11CTRL 0x3ea /* inst breakpoint 11 control */
++#define LOONGARCH_CSR_IB11ASID 0x3eb /* inst breakpoint 11 asid */
++
++#define LOONGARCH_CSR_IB12ADDR 0x3f0 /* inst breakpoint 12 address */
++#define LOONGARCH_CSR_IB12MASK 0x3f1 /* inst breakpoint 12 mask */
++#define LOONGARCH_CSR_IB12CTRL 0x3f2 /* inst breakpoint 12 control */
++#define LOONGARCH_CSR_IB12ASID 0x3f3 /* inst breakpoint 12 asid */
++
++#define LOONGARCH_CSR_IB13ADDR 0x3f8 /* inst breakpoint 13 address */
++#define LOONGARCH_CSR_IB13MASK 0x3f9 /* inst breakpoint 13 mask */
++#define LOONGARCH_CSR_IB13CTRL 0x3fa /* inst breakpoint 13 control */
++#define LOONGARCH_CSR_IB13ASID 0x3fb /* inst breakpoint 13 asid */
++
+ #define LOONGARCH_CSR_DEBUG 0x500 /* debug config */
+ #define LOONGARCH_CSR_DERA 0x501 /* debug era */
+ #define LOONGARCH_CSR_DESAVE 0x502 /* debug save */
+--- a/arch/loongarch/kernel/hw_breakpoint.c
++++ b/arch/loongarch/kernel/hw_breakpoint.c
+@@ -51,7 +51,13 @@ int hw_breakpoint_slots(int type)
+ READ_WB_REG_CASE(OFF, 4, REG, T, VAL); \
+ READ_WB_REG_CASE(OFF, 5, REG, T, VAL); \
+ READ_WB_REG_CASE(OFF, 6, REG, T, VAL); \
+- READ_WB_REG_CASE(OFF, 7, REG, T, VAL);
++ READ_WB_REG_CASE(OFF, 7, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 8, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 9, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 10, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 11, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 12, REG, T, VAL); \
++ READ_WB_REG_CASE(OFF, 13, REG, T, VAL);
+
+ #define GEN_WRITE_WB_REG_CASES(OFF, REG, T, VAL) \
+ WRITE_WB_REG_CASE(OFF, 0, REG, T, VAL); \
+@@ -61,7 +67,13 @@ int hw_breakpoint_slots(int type)
+ WRITE_WB_REG_CASE(OFF, 4, REG, T, VAL); \
+ WRITE_WB_REG_CASE(OFF, 5, REG, T, VAL); \
+ WRITE_WB_REG_CASE(OFF, 6, REG, T, VAL); \
+- WRITE_WB_REG_CASE(OFF, 7, REG, T, VAL);
++ WRITE_WB_REG_CASE(OFF, 7, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 8, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 9, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 10, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 11, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 12, REG, T, VAL); \
++ WRITE_WB_REG_CASE(OFF, 13, REG, T, VAL);
+
+ static u64 read_wb_reg(int reg, int n, int t)
+ {
--- /dev/null
+From 3b8b80e993766dc96d1a1c01c62f5d15fafc79b9 Mon Sep 17 00:00:00 2001
+From: Nathan Chancellor <nathan@kernel.org>
+Date: Wed, 22 Jan 2025 19:54:27 -0700
+Subject: s390: Add '-std=gnu11' to decompressor and purgatory CFLAGS
+
+From: Nathan Chancellor <nathan@kernel.org>
+
+commit 3b8b80e993766dc96d1a1c01c62f5d15fafc79b9 upstream.
+
+GCC changed the default C standard dialect from gnu17 to gnu23,
+which should not have impacted the kernel because it explicitly requests
+the gnu11 standard in the main Makefile. However, there are certain
+places in the s390 code that use their own CFLAGS without a '-std='
+value, which break with this dialect change because of the kernel's own
+definitions of bool, false, and true conflicting with the C23 reserved
+keywords.
+
+ include/linux/stddef.h:11:9: error: cannot use keyword 'false' as enumeration constant
+ 11 | false = 0,
+ | ^~~~~
+ include/linux/stddef.h:11:9: note: 'false' is a keyword with '-std=c23' onwards
+ include/linux/types.h:35:33: error: 'bool' cannot be defined via 'typedef'
+ 35 | typedef _Bool bool;
+ | ^~~~
+ include/linux/types.h:35:33: note: 'bool' is a keyword with '-std=c23' onwards
+
+Add '-std=gnu11' to the decompressor and purgatory CFLAGS to eliminate
+these errors and make the C standard version of these areas match the
+rest of the kernel.
+
+Cc: stable@vger.kernel.org
+Signed-off-by: Nathan Chancellor <nathan@kernel.org>
+Tested-by: Heiko Carstens <hca@linux.ibm.com>
+Link: https://lore.kernel.org/r/20250122-s390-fix-std-for-gcc-15-v1-1-8b00cadee083@kernel.org
+Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/s390/Makefile | 2 +-
+ arch/s390/purgatory/Makefile | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/s390/Makefile
++++ b/arch/s390/Makefile
+@@ -21,7 +21,7 @@ KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FL
+ ifndef CONFIG_AS_IS_LLVM
+ KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf))
+ endif
+-KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack
++KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack -std=gnu11
+ KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
+ KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float -mbackchain
+ KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables
+--- a/arch/s390/purgatory/Makefile
++++ b/arch/s390/purgatory/Makefile
+@@ -21,7 +21,7 @@ UBSAN_SANITIZE := n
+ KASAN_SANITIZE := n
+ KCSAN_SANITIZE := n
+
+-KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
++KBUILD_CFLAGS := -std=gnu11 -fno-strict-aliasing -Wall -Wstrict-prototypes
+ KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
+ KBUILD_CFLAGS += -fno-zero-initialized-in-bss -fno-builtin -ffreestanding
+ KBUILD_CFLAGS += -Os -m64 -msoft-float -fno-common
projects / thirdparty / kernel / stable-queue.git / commitdiff
