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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>
This commit is contained in:
Lukas Auer 2018-11-22 11:26:17 +01:00 committed by Andes
parent 776e6335bf
commit b2c860c6dc
4 changed files with 15 additions and 11 deletions
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6
arch/riscv/include/asm/io.h
View File

@ -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();

6
arch/riscv/include/asm/posix_types.h
View File

@ -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;

4
arch/riscv/include/asm/types.h
View File

@ -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>

10
arch/riscv/lib/interrupts.c
View File

@ -12,7 +12,7 @@
#include <asm/system.h>
#include <asm/encoding.h>
static void _exit_trap(int code, uint epc, struct pt_regs *regs);
static void _exit_trap(ulong code, ulong epc, struct pt_regs *regs);
int interrupt_init(void)
{
@ -34,9 +34,9 @@ int disable_interrupts(void)
return 0;
}
uint handle_trap(uint mcause, uint epc, struct pt_regs *regs)
ulong handle_trap(ulong mcause, ulong epc, struct pt_regs *regs)
{
uint is_int;
ulong is_int;
is_int = (mcause & MCAUSE_INT);
if ((is_int) && ((mcause & MCAUSE_CAUSE) == IRQ_M_EXT))
@ -60,7 +60,7 @@ __attribute__((weak)) void timer_interrupt(struct pt_regs *regs)
{
}
static void _exit_trap(int code, uint epc, struct pt_regs *regs)
static void _exit_trap(ulong code, ulong epc, struct pt_regs *regs)
{
static const char * const exception_code[] = {
"Instruction address misaligned",
@ -70,6 +70,6 @@ static void _exit_trap(int code, uint epc, struct pt_regs *regs)
"Load address misaligned"
};
printf("exception code: %d , %s , epc %08x , ra %08lx\n",
printf("exception code: %ld , %s , epc %lx , ra %lx\n",
code, exception_code[code], epc, regs->ra);
}