asahi: Move fixed internal shaders to agx_blit.c

A more natural place to put them, as the clear/store shaders use a similar
mechanism as the reload shaders. Now magic.c is exclusively kernel side piping.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11815>

src/gallium/drivers/asahi/agx_blit.c

@@ -28,7 +28,7 @@
 #include "asahi/compiler/agx_compile.h"
 #include "gallium/auxiliary/util/u_blitter.h"
 
-void
+static void
 agx_build_reload_shader(struct agx_device *dev)
 {
    nir_builder b = nir_builder_init_simple_shader(MESA_SHADER_FRAGMENT,
@@ -132,3 +132,51 @@ agx_blit(struct pipe_context *pipe,
    agx_blitter_save(ctx, ctx->blitter, info->render_condition_enable);
    util_blitter_blit(ctx->blitter, info);
 }
+
+/* We need some fixed shaders for common rendering tasks. When colour buffer
+ * reload is not in use, a shader is used to clear a particular colour. At the
+ * end of rendering a tile, a shader is used to write it out. These shaders are
+ * too trivial to go through the compiler at this stage. */
+#define AGX_STOP \
+	0x88, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, \
+	0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00 \
+
+#define AGX_BLEND \
+	0x09, 0x00, 0x00, 0x04, 0xf0, 0xfc, 0x80, 0x03
+
+/* Clears the tilebuffer, where u6-u7 are preloaded with the FP16 clear colour
+
+   0: 7e018c098040         bitop_mov        r0, u6
+   6: 7e058e098000         bitop_mov        r1, u7
+   c: 09000004f0fc8003     TODO.blend
+   */
+
+static uint8_t shader_clear[] = {
+   0x7e, 0x01, 0x8c, 0x09, 0x80, 0x40,
+   0x7e, 0x05, 0x8e, 0x09, 0x80, 0x00,
+   AGX_BLEND,
+   AGX_STOP
+};
+
+static uint8_t shader_store[] = {
+   0x7e, 0x00, 0x04, 0x09, 0x80, 0x00,
+   0xb1, 0x80, 0x00, 0x80, 0x00, 0x4a, 0x00, 0x00, 0x0a, 0x00,
+   AGX_STOP
+};
+
+void
+agx_internal_shaders(struct agx_device *dev)
+{
+   unsigned clear_offset = 0;
+   unsigned store_offset = 1024;
+
+   struct agx_bo *bo = agx_bo_create(dev, 4096, AGX_MEMORY_TYPE_SHADER);
+   memcpy(((uint8_t *) bo->ptr.cpu) + clear_offset, shader_clear, sizeof(shader_clear));
+   memcpy(((uint8_t *) bo->ptr.cpu) + store_offset, shader_store, sizeof(shader_store));
+
+   dev->internal.bo = bo;
+   dev->internal.clear = bo->ptr.gpu + clear_offset;
+   dev->internal.store = bo->ptr.gpu + store_offset;
+
+   agx_build_reload_shader(dev);
+}

src/gallium/drivers/asahi/agx_state.h

@@ -297,9 +297,9 @@ agx_batch_add_bo(struct agx_batch *batch, struct agx_bo *bo)
 }
 
 /* Blit shaders */
-void agx_build_reload_shader(struct agx_device *dev);
-
 void agx_blit(struct pipe_context *pipe,
               const struct pipe_blit_info *info);
 
+void agx_internal_shaders(struct agx_device *dev);
+
 #endif

src/gallium/drivers/asahi/magic.c

@@ -283,47 +283,3 @@ demo_mem_map(void *map, size_t size, unsigned *handles, unsigned count,
       .index = 0
    };
 }
-
-#define AGX_STOP \
-	0x88, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, \
-	0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00 \
-
-#define AGX_BLEND \
-	0x09, 0x00, 0x00, 0x04, 0xf0, 0xfc, 0x80, 0x03
-
-/* Clears the tilebuffer, where u6-u7 are preloaded with the FP16 clear colour
-
-   0: 7e018c098040         bitop_mov        r0, u6
-   6: 7e058e098000         bitop_mov        r1, u7
-   c: 09000004f0fc8003     TODO.blend
-   */
-
-uint8_t shader_clear[] = {
-   0x7e, 0x01, 0x8c, 0x09, 0x80, 0x40,
-   0x7e, 0x05, 0x8e, 0x09, 0x80, 0x00,
-   AGX_BLEND,
-   AGX_STOP
-};
-
-uint8_t shader_store[] = {
-   0x7e, 0x00, 0x04, 0x09, 0x80, 0x00,
-   0xb1, 0x80, 0x00, 0x80, 0x00, 0x4a, 0x00, 0x00, 0x0a, 0x00,
-   AGX_STOP
-};
-
-void
-agx_internal_shaders(struct agx_device *dev)
-{
-   unsigned clear_offset = 0;
-   unsigned store_offset = 1024;
-
-   struct agx_bo *bo = agx_bo_create(dev, 4096, AGX_MEMORY_TYPE_SHADER);
-   memcpy(((uint8_t *) bo->ptr.cpu) + clear_offset, shader_clear, sizeof(shader_clear));
-   memcpy(((uint8_t *) bo->ptr.cpu) + store_offset, shader_store, sizeof(shader_store));
-
-   dev->internal.bo = bo;
-   dev->internal.clear = bo->ptr.gpu + clear_offset;
-   dev->internal.store = bo->ptr.gpu + store_offset;
-
-   agx_build_reload_shader(dev);
-}

src/gallium/drivers/asahi/magic.h

@@ -14,6 +14,3 @@ void
 demo_mem_map(void *map, size_t size, unsigned *handles,
              unsigned count, uint64_t cmdbuf_id, uint64_t
              encoder_id, unsigned cmdbuf_size);
-
-void
-agx_internal_shaders(struct agx_device *dev);