Add opengl assembly stub for riscv64
Bug: http://b/254901618
Signed-off-by: Xia Lifang <lifang_xia@linux.alibaba.com>
Signed-off-by: Mao Han <han_mao@linux.alibaba.com>
Change-Id: Ifefde47bca3e67b09e6f7b422ea494348169a84f
diff --git a/opengl/libs/EGL/getProcAddress.cpp b/opengl/libs/EGL/getProcAddress.cpp
index b3d6f74..e0ba946 100644
--- a/opengl/libs/EGL/getProcAddress.cpp
+++ b/opengl/libs/EGL/getProcAddress.cpp
@@ -118,70 +118,27 @@
: "rax", "cc" \
);
-#elif defined(__mips64)
+#elif defined(__riscv)
+ #define API_ENTRY(_api) __attribute__((noinline)) _api
- #define API_ENTRY(_api) __attribute__((noinline)) _api
-
- #define CALL_GL_EXTENSION_API(_api, ...) \
- register unsigned int _t0 asm("$12"); \
- register unsigned int _fn asm("$25"); \
- register unsigned int _tls asm("$3"); \
- asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- "rdhwr %[tls], $29\n\t" \
- "ld %[t0], %[OPENGL_API](%[tls])\n\t" \
- "beqz %[t0], 1f\n\t" \
- " move %[fn], $ra\n\t" \
- "ld %[t0], %[API](%[t0])\n\t" \
- "beqz %[t0], 1f\n\t" \
- " nop\n\t" \
- "move %[fn], %[t0]\n\t" \
- "1:\n\t" \
- "jalr $0, %[fn]\n\t" \
- " nop\n\t" \
- ".set pop\n\t" \
- : [fn] "=c"(_fn), \
- [tls] "=&r"(_tls), \
- [t0] "=&r"(_t0) \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
- [API] "I"(__builtin_offsetof(gl_hooks_t, \
- ext.extensions[_api])) \
- : \
- );
-
-#elif defined(__mips__)
-
- #define API_ENTRY(_api) __attribute__((noinline)) _api
-
- #define CALL_GL_EXTENSION_API(_api, ...) \
- register unsigned int _t0 asm("$8"); \
- register unsigned int _fn asm("$25"); \
- register unsigned int _tls asm("$3"); \
- asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- ".set mips32r2\n\t" \
- "rdhwr %[tls], $29\n\t" \
- "lw %[t0], %[OPENGL_API](%[tls])\n\t" \
- "beqz %[t0], 1f\n\t" \
- " move %[fn], $ra\n\t" \
- "lw %[t0], %[API](%[t0])\n\t" \
- "beqz %[t0], 1f\n\t" \
- " nop\n\t" \
- "move %[fn], %[t0]\n\t" \
- "1:\n\t" \
- "jalr $0, %[fn]\n\t" \
- " nop\n\t" \
- ".set pop\n\t" \
- : [fn] "=c"(_fn), \
- [tls] "=&r"(_tls), \
- [t0] "=&r"(_t0) \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
- [API] "I"(__builtin_offsetof(gl_hooks_t, \
- ext.extensions[_api])) \
- : \
- );
+ #define CALL_GL_EXTENSION_API(_api) \
+ asm volatile( \
+ "mv t0, tp\n" \
+ "li t1, %[tls]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "beqz t0, 1f\n" \
+ "li t1, %[api]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "jalr x0, t0\n" \
+ "1: ret\n" \
+ : \
+ : [tls] "i" (TLS_SLOT_OPENGL_API * sizeof(void*)), \
+ [api] "i" (__builtin_offsetof(gl_hooks_t, \
+ ext.extensions[_api])) \
+ : "t0", "t1" \
+ );
#endif
diff --git a/opengl/libs/GLES2/gl2.cpp b/opengl/libs/GLES2/gl2.cpp
index 65f50f5..5bd5c14 100644
--- a/opengl/libs/GLES2/gl2.cpp
+++ b/opengl/libs/GLES2/gl2.cpp
@@ -191,73 +191,44 @@
: \
);
-#elif defined(__mips64)
+#elif defined(__riscv)
#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
- // t0: $12
- // fn: $25
- // tls: $3
- // v0: $2
- #define CALL_GL_API_INTERNAL_CALL(_api, ...) \
- asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- "rdhwr $3, $29\n\t" \
- "ld $12, %[OPENGL_API]($3)\n\t" \
- "beqz $12, 1f\n\t" \
- " move $25, $ra\n\t" \
- "ld $12, %[API]($12)\n\t" \
- "beqz $12, 1f\n\t" \
- " nop\n\t" \
- "move $25, $12\n\t" \
- "1:\n\t" \
- "jalr $0, $25\n\t" \
- " move $2, $0\n\t" \
- ".set pop\n\t" \
- : \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*sizeof(void*)),\
- [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
- : "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", \
- "$10", "$11", "$12", "$25" \
- );
-
- #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
- #define CALL_GL_API_INTERNAL_DO_RETURN
-
-#elif defined(__mips__)
-
- #define API_ENTRY(_api) __attribute__((naked,noinline)) _api
-
- // t0: $8
- // fn: $25
- // tls: $3
- // v0: $2
#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- ".set mips32r2\n\t" \
- "rdhwr $3, $29\n\t" \
- "lw $3, %[OPENGL_API]($3)\n\t" \
- "beqz $3, 1f\n\t" \
- " move $25,$ra\n\t" \
- "lw $3, %[API]($3)\n\t" \
- "beqz $3, 1f\n\t" \
- " nop\n\t" \
- "move $25, $3\n\t" \
- "1:\n\t" \
- "jalr $0, $25\n\t" \
- " move $2, $0\n\t" \
- ".set pop\n\t" \
+ "mv t0, tp\n" \
+ "li t1, %[tls]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "beqz t0, 1f\n" \
+ "li t1, %[api]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "jalr x0, t0\n" \
+ "1:\n" \
: \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
- [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
- : "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$25" \
+ : [tls] "i"(TLS_SLOT_OPENGL_API*sizeof(void *)), \
+ [api] "i"(__builtin_offsetof(gl_hooks_t, gl._api)) \
+ : "t0", "t1", "t2", "a0", "a1", "a2", "a3", "a4", \
+ "a5", "t6", "t3", "t4", "t5", "t6" \
);
- #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
- #define CALL_GL_API_INTERNAL_DO_RETURN
+ #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
+ asm volatile( \
+ "li a0, 0\n" \
+ : \
+ : \
+ : "a0" \
+ );
+
+ #define CALL_GL_API_INTERNAL_DO_RETURN \
+ asm volatile( \
+ "ret\n" \
+ : \
+ : \
+ : \
+ );
#endif
diff --git a/opengl/libs/GLES_CM/gl.cpp b/opengl/libs/GLES_CM/gl.cpp
index bacd4b4..64c0f97 100644
--- a/opengl/libs/GLES_CM/gl.cpp
+++ b/opengl/libs/GLES_CM/gl.cpp
@@ -247,73 +247,44 @@
: \
);
-#elif defined(__mips64)
+#elif defined(__riscv)
#define API_ENTRY(_api) __attribute__((naked,noinline)) _api
- // t0: $12
- // fn: $25
- // tls: $3
- // v0: $2
- #define CALL_GL_API_INTERNAL_CALL(_api, ...) \
- asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- "rdhwr $3, $29\n\t" \
- "ld $12, %[OPENGL_API]($3)\n\t" \
- "beqz $12, 1f\n\t" \
- " move $25, $ra\n\t" \
- "ld $12, %[API]($12)\n\t" \
- "beqz $12, 1f\n\t" \
- " nop\n\t" \
- "move $25, $12\n\t" \
- "1:\n\t" \
- "jalr $0, $25\n\t" \
- " move $2, $0\n\t" \
- ".set pop\n\t" \
- : \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*sizeof(void*)),\
- [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
- : "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$9", \
- "$10", "$11", "$12", "$25" \
- );
-
- #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
- #define CALL_GL_API_INTERNAL_DO_RETURN
-
-#elif defined(__mips__)
-
- #define API_ENTRY(_api) __attribute__((naked,noinline)) _api
-
- // t0: $8
- // fn: $25
- // tls: $3
- // v0: $2
#define CALL_GL_API_INTERNAL_CALL(_api, ...) \
asm volatile( \
- ".set push\n\t" \
- ".set noreorder\n\t" \
- ".set mips32r2\n\t" \
- "rdhwr $3, $29\n\t" \
- "lw $3, %[OPENGL_API]($3)\n\t" \
- "beqz $3, 1f\n\t" \
- " move $25,$ra\n\t" \
- "lw $3, %[API]($3)\n\t" \
- "beqz $3, 1f\n\t" \
- " nop\n\t" \
- "move $25, $3\n\t" \
- "1:\n\t" \
- "jalr $0, $25\n\t" \
- " move $2, $0\n\t" \
- ".set pop\n\t" \
+ "mv t0, tp\n" \
+ "li t1, %[tls]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "beqz t0, 1f\n" \
+ "li t1, %[api]\n" \
+ "add t0, t0, t1\n" \
+ "ld t0, 0(t0)\n" \
+ "jalr x0, t0\n" \
+ "1:\n" \
: \
- : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \
- [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \
- : "$2", "$3", "$4", "$5", "$6", "$7", "$8", "$25" \
+ : [tls] "i"(TLS_SLOT_OPENGL_API*sizeof(void *)), \
+ [api] "i"(__builtin_offsetof(gl_hooks_t, gl._api)) \
+ : "t0", "t1", "t2", "a0", "a1", "a2", "a3", "a4", \
+ "a5", "t6", "t3", "t4", "t5", "t6" \
);
- #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE
- #define CALL_GL_API_INTERNAL_DO_RETURN
+ #define CALL_GL_API_INTERNAL_SET_RETURN_VALUE \
+ asm volatile( \
+ "li a0, 0\n" \
+ : \
+ : \
+ : "a0" \
+ );
+
+ #define CALL_GL_API_INTERNAL_DO_RETURN \
+ asm volatile( \
+ "ret\n" \
+ : \
+ : \
+ : \
+ );
#endif