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authorLukas Auer <lukas.auer@aisec.fraunhofer.de>2018-11-22 11:26:17 +0100
committerAndes <uboot@andestech.com>2018-11-26 13:57:29 +0800
commitb2c860c6dc5078c710b34a0dec9d6514cf390a85 (patch)
tree40740c92dd528ba7d4ed9633bd1c8c0bc8cee96e /arch/riscv/include
parent776e6335bf425f6b3cad01a25935dd2b7d4f40b7 (diff)
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riscv: fix use of incorrectly sized variables
The RISC-V arch incorrectly uses 32-bit instead of 64-bit variables in several places. Fix this. In addition, BITS_PER_LONG is set to 64 on RV64I systems. Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/riscv/include')
-rw-r--r--arch/riscv/include/asm/io.h6
-rw-r--r--arch/riscv/include/asm/posix_types.h6
-rw-r--r--arch/riscv/include/asm/types.h4
3 files changed, 10 insertions, 6 deletions
diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h
index f4a76d87..472814a 100644
--- a/arch/riscv/include/asm/io.h
+++ b/arch/riscv/include/asm/io.h
@@ -74,12 +74,12 @@ static inline phys_addr_t virt_to_phys(void *vaddr)
#define __arch_getb(a) (*(unsigned char *)(a))
#define __arch_getw(a) (*(unsigned short *)(a))
#define __arch_getl(a) (*(unsigned int *)(a))
-#define __arch_getq(a) (*(unsigned long *)(a))
+#define __arch_getq(a) (*(unsigned long long *)(a))
#define __arch_putb(v, a) (*(unsigned char *)(a) = (v))
#define __arch_putw(v, a) (*(unsigned short *)(a) = (v))
#define __arch_putl(v, a) (*(unsigned int *)(a) = (v))
-#define __arch_putq(v, a) (*(unsigned long *)(a) = (v))
+#define __arch_putq(v, a) (*(unsigned long long *)(a) = (v))
#define __raw_writeb(v, a) __arch_putb(v, a)
#define __raw_writew(v, a) __arch_putw(v, a)
@@ -152,7 +152,7 @@ static inline u32 readl(const volatile void __iomem *addr)
static inline u64 readq(const volatile void __iomem *addr)
{
- u32 val;
+ u64 val;
val = __arch_getq(addr);
__iormb();
diff --git a/arch/riscv/include/asm/posix_types.h b/arch/riscv/include/asm/posix_types.h
index 7438dbe..0fc0520 100644
--- a/arch/riscv/include/asm/posix_types.h
+++ b/arch/riscv/include/asm/posix_types.h
@@ -37,10 +37,10 @@ typedef unsigned short __kernel_gid_t;
#ifdef __GNUC__
typedef __SIZE_TYPE__ __kernel_size_t;
#else
-typedef unsigned int __kernel_size_t;
+typedef unsigned long __kernel_size_t;
#endif
-typedef int __kernel_ssize_t;
-typedef int __kernel_ptrdiff_t;
+typedef long __kernel_ssize_t;
+typedef long __kernel_ptrdiff_t;
typedef long __kernel_time_t;
typedef long __kernel_suseconds_t;
typedef long __kernel_clock_t;
diff --git a/arch/riscv/include/asm/types.h b/arch/riscv/include/asm/types.h
index bd86271..403cf9a 100644
--- a/arch/riscv/include/asm/types.h
+++ b/arch/riscv/include/asm/types.h
@@ -21,7 +21,11 @@ typedef unsigned short umode_t;
*/
#ifdef __KERNEL__
+#ifdef CONFIG_ARCH_RV64I
+#define BITS_PER_LONG 64
+#else
#define BITS_PER_LONG 32
+#endif
#include <stddef.h>