diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/kernel/kernel/cpu.h | 82 |
1 files changed, 1 insertions, 81 deletions
diff --git a/include/kernel/kernel/cpu.h b/include/kernel/kernel/cpu.h index 0634ac6..066bf78 100644 --- a/include/kernel/kernel/cpu.h +++ b/include/kernel/kernel/cpu.h @@ -7,36 +7,11 @@ #include_next <kernel/cpu.h> -#include <string.h> -#include <scetypes.h> - #ifdef __cplusplus extern "C" { #endif /** - * @brief Call this when entering a syscall - * - * @param state The state - */ -#define ENTER_SYSCALL(state) \ - do { \ - asm volatile ("mrc p15, 0, %0, c13, c0, 3" : "=r" (state)); \ - asm volatile ("mcr p15, 0, %0, c13, c0, 3" :: "r" (state << 16) : "memory"); \ - } while(0) - -/** - * @brief Call this when exiting a syscall - * - * @param state The state - */ -#define EXIT_SYSCALL(state) \ - do { \ - asm volatile ("mcr p15, 0, %0, c13, c0, 3" :: "r" (state) : "memory"); \ - } while (0) - - -/** * @brief Writeback a range of L1 dcache (without L2) * * @param ptr The pointer @@ -44,43 +19,6 @@ extern "C" { */ void sceKernelCpuDcacheWritebackRange(const void *ptr, SceSize len); - -/** - * @brief Save process context - * - * @param context The context - */ -static inline void sceKernelCpuSaveContext(int context[3]) -{ - asm ("mrc p15, 0, %0, c2, c0, 1" : "=r" (context[0])); - asm ("mrc p15, 0, %0, c3, c0, 0" : "=r" (context[1])); - asm ("mrc p15, 0, %0, c13, c0, 1" : "=r" (context[2])); -} - -/** - * @brief Restore process context - * - * @param context The context, can be from ::sceKernelGetPidContext - */ -static inline void sceKernelCpuRestoreContext(int context[3]) -{ - int cpsr, tmp; - - asm volatile ("mrs %0, cpsr" : "=r" (cpsr)); - if (!(cpsr & 0x80)) - asm volatile ("cpsid i" ::: "memory"); - asm volatile ("mrc p15, 0, %0, c13, c0, 1" : "=r" (tmp)); - tmp = (tmp & 0xFFFFFF00) | context[2]; - asm volatile ("mcr p15, 0, %0, c13, c0, 1" :: "r" (0)); - asm volatile ("isb" ::: "memory"); - asm volatile ("mcr p15, 0, %0, c2, c0, 1" :: "r" (context[0] | 0x4A)); - asm volatile ("isb" ::: "memory"); - asm volatile ("mcr p15, 0, %0, c13, c0, 1" :: "r" (tmp)); - asm volatile ("mcr p15, 0, %0, c3, c0, 0" :: "r" (context[1] & 0x55555555)); - if (!(cpsr & 0x80)) - asm volatile ("cpsie i" ::: "memory"); -} - /** * @brief MMU permission bypassing memcpy * @@ -92,25 +30,7 @@ static inline void sceKernelCpuRestoreContext(int context[3]) * * @return Zero on success. */ -static inline int sceKernelCpuUnrestrictedMemcpy(void *dst, const void *src, SceSize len) -{ - int prev_dacr; - - asm volatile("mrc p15, 0, %0, c3, c0, 0" : "=r" (prev_dacr)); - asm volatile("mcr p15, 0, %0, c3, c0, 0" :: "r" (0xFFFF0000)); - - memcpy(dst, src, len); - - len += (SceSize)(((uintptr_t)dst) & 0x1F); - - dst = (void *)(((uintptr_t)dst) & ~0x1F); - len = (len + 0x1F) & ~0x1F; - - sceKernelCpuDcacheWritebackRange(dst, len); - - asm volatile("mcr p15, 0, %0, c3, c0, 0" :: "r" (prev_dacr)); - return 0; -} +int sceKernelCpuUnrestrictedMemcpy(void *dst, const void *src, SceSize len); /** * @brief Returns the CPU ID of the calling processor |