diff options
Diffstat (limited to 'arch/microblaze/include/asm')
| -rw-r--r-- | arch/microblaze/include/asm/asm-compat.h | 17 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/io.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/ipc.h | 1 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/page.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/setup.h | 2 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/syscall.h | 99 |
6 files changed, 123 insertions, 2 deletions
diff --git a/arch/microblaze/include/asm/asm-compat.h b/arch/microblaze/include/asm/asm-compat.h new file mode 100644 index 000000000000..e7bc9dc11b57 --- /dev/null +++ b/arch/microblaze/include/asm/asm-compat.h @@ -0,0 +1,17 @@ +#ifndef _ASM_MICROBLAZE_ASM_COMPAT_H +#define _ASM_MICROBLAZE_ASM_COMPAT_H + +#include <asm/types.h> + +#ifdef __ASSEMBLY__ +# define stringify_in_c(...) __VA_ARGS__ +# define ASM_CONST(x) x +#else +/* This version of stringify will deal with commas... */ +# define __stringify_in_c(...) #__VA_ARGS__ +# define stringify_in_c(...) __stringify_in_c(__VA_ARGS__) " " +# define __ASM_CONST(x) x##UL +# define ASM_CONST(x) __ASM_CONST(x) +#endif + +#endif /* _ASM_MICROBLAZE_ASM_COMPAT_H */ diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h index 7c3ec13b44d8..fc9997b73c09 100644 --- a/arch/microblaze/include/asm/io.h +++ b/arch/microblaze/include/asm/io.h @@ -210,6 +210,9 @@ static inline void __iomem *__ioremap(phys_addr_t address, unsigned long size, #define in_be32(a) __raw_readl((const void __iomem __force *)(a)) #define in_be16(a) __raw_readw(a) +#define writel_be(v, a) out_be32((__force unsigned *)a, v) +#define readl_be(a) in_be32((__force unsigned *)a) + /* * Little endian */ diff --git a/arch/microblaze/include/asm/ipc.h b/arch/microblaze/include/asm/ipc.h deleted file mode 100644 index a46e3d9c2a3f..000000000000 --- a/arch/microblaze/include/asm/ipc.h +++ /dev/null @@ -1 +0,0 @@ -#include <asm-generic/ipc.h> diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index 72aceae88680..880c988c2237 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -17,6 +17,7 @@ #include <linux/pfn.h> #include <asm/setup.h> +#include <asm/asm-compat.h> #include <linux/const.h> #ifdef __KERNEL__ @@ -26,6 +27,8 @@ #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) +#define LOAD_OFFSET ASM_CONST((CONFIG_KERNEL_START-CONFIG_KERNEL_BASE_ADDR)) + #ifndef __ASSEMBLY__ #define PAGE_UP(addr) (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1))) diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h index 27f8dafd8c34..ed67c9ed15b8 100644 --- a/arch/microblaze/include/asm/setup.h +++ b/arch/microblaze/include/asm/setup.h @@ -38,7 +38,7 @@ extern void early_console_reg_tlb_alloc(unsigned int addr); void time_init(void); void init_IRQ(void); void machine_early_init(const char *cmdline, unsigned int ram, - unsigned int fdt); + unsigned int fdt, unsigned int msr); void machine_restart(char *cmd); void machine_shutdown(void); diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h new file mode 100644 index 000000000000..048dfcd8d89d --- /dev/null +++ b/arch/microblaze/include/asm/syscall.h @@ -0,0 +1,99 @@ +#ifndef __ASM_MICROBLAZE_SYSCALL_H +#define __ASM_MICROBLAZE_SYSCALL_H + +#include <linux/kernel.h> +#include <linux/sched.h> +#include <asm/ptrace.h> + +/* The system call number is given by the user in R12 */ +static inline long syscall_get_nr(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r12; +} + +static inline void syscall_rollback(struct task_struct *task, + struct pt_regs *regs) +{ + /* TODO. */ +} + +static inline long syscall_get_error(struct task_struct *task, + struct pt_regs *regs) +{ + return IS_ERR_VALUE(regs->r3) ? regs->r3 : 0; +} + +static inline long syscall_get_return_value(struct task_struct *task, + struct pt_regs *regs) +{ + return regs->r3; +} + +static inline void syscall_set_return_value(struct task_struct *task, + struct pt_regs *regs, + int error, long val) +{ + if (error) + regs->r3 = -error; + else + regs->r3 = val; +} + +static inline microblaze_reg_t microblaze_get_syscall_arg(struct pt_regs *regs, + unsigned int n) +{ + switch (n) { + case 5: return regs->r10; + case 4: return regs->r9; + case 3: return regs->r8; + case 2: return regs->r7; + case 1: return regs->r6; + case 0: return regs->r5; + default: + BUG(); + } + return ~0; +} + +static inline void microblaze_set_syscall_arg(struct pt_regs *regs, + unsigned int n, + unsigned long val) +{ + switch (n) { + case 5: + regs->r10 = val; + case 4: + regs->r9 = val; + case 3: + regs->r8 = val; + case 2: + regs->r7 = val; + case 1: + regs->r6 = val; + case 0: + regs->r5 = val; + default: + BUG(); + } +} + +static inline void syscall_get_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + unsigned long *args) +{ + while (n--) + *args++ = microblaze_get_syscall_arg(regs, i++); +} + +static inline void syscall_set_arguments(struct task_struct *task, + struct pt_regs *regs, + unsigned int i, unsigned int n, + const unsigned long *args) +{ + while (n--) + microblaze_set_syscall_arg(regs, i++, *args++); +} + +#endif /* __ASM_MICROBLAZE_SYSCALL_H */ |