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-rw-r--r--src/mesa/drivers/dri/i965/brw_context.h5
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw_upload.c10
-rw-r--r--src/mesa/drivers/dri/i965/intel_buffer_objects.h21
-rw-r--r--src/mesa/drivers/dri/i965/intel_upload.c167
4 files changed, 77 insertions, 126 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 04af5d04d3a..e1196824571 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1041,10 +1041,7 @@ struct brw_context
struct {
drm_intel_bo *bo;
- GLuint offset;
- uint32_t buffer_len;
- uint32_t buffer_offset;
- char buffer[4096];
+ uint32_t next_offset;
} upload;
/**
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index e261163e765..a579025508c 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -381,21 +381,17 @@ copy_array_to_vbo_array(struct brw_context *brw,
const unsigned char *src = element->glarray->Ptr + min * src_stride;
int count = max - min + 1;
GLuint size = count * dst_stride;
+ uint8_t *dst = intel_upload_space(brw, size, dst_stride,
+ &buffer->bo, &buffer->offset);
if (dst_stride == src_stride) {
- intel_upload_data(brw, src, size, dst_stride,
- &buffer->bo, &buffer->offset);
+ memcpy(dst, src, size);
} else {
- char * const map = intel_upload_map(brw, size, dst_stride);
- char *dst = map;
-
while (count--) {
memcpy(dst, src, dst_stride);
src += src_stride;
dst += dst_stride;
}
- intel_upload_unmap(brw, map, size, dst_stride,
- &buffer->bo, &buffer->offset);
}
buffer->stride = dst_stride;
}
diff --git a/src/mesa/drivers/dri/i965/intel_buffer_objects.h b/src/mesa/drivers/dri/i965/intel_buffer_objects.h
index b27d25fbebf..5eaf9dce29f 100644
--- a/src/mesa/drivers/dri/i965/intel_buffer_objects.h
+++ b/src/mesa/drivers/dri/i965/intel_buffer_objects.h
@@ -90,16 +90,17 @@ drm_intel_bo *intel_bufferobj_buffer(struct brw_context *brw,
uint32_t size);
void intel_upload_data(struct brw_context *brw,
- const void *ptr, GLuint size, GLuint align,
- drm_intel_bo **return_bo,
- GLuint *return_offset);
-
-void *intel_upload_map(struct brw_context *brw,
- GLuint size, GLuint align);
-void intel_upload_unmap(struct brw_context *brw,
- const void *ptr, GLuint size, GLuint align,
- drm_intel_bo **return_bo,
- GLuint *return_offset);
+ const void *data,
+ uint32_t size,
+ uint32_t alignment,
+ drm_intel_bo **out_bo,
+ uint32_t *out_offset);
+
+void *intel_upload_space(struct brw_context *brw,
+ uint32_t size,
+ uint32_t alignment,
+ drm_intel_bo **out_bo,
+ uint32_t *out_offset);
void intel_upload_finish(struct brw_context *brw);
diff --git a/src/mesa/drivers/dri/i965/intel_upload.c b/src/mesa/drivers/dri/i965/intel_upload.c
index ec3109bd441..bb3f615d987 100644
--- a/src/mesa/drivers/dri/i965/intel_upload.c
+++ b/src/mesa/drivers/dri/i965/intel_upload.c
@@ -57,127 +57,84 @@ intel_upload_finish(struct brw_context *brw)
if (!brw->upload.bo)
return;
- if (brw->upload.buffer_len) {
- drm_intel_bo_subdata(brw->upload.bo,
- brw->upload.buffer_offset,
- brw->upload.buffer_len,
- brw->upload.buffer);
- brw->upload.buffer_len = 0;
- }
-
+ drm_intel_bo_unmap(brw->upload.bo);
drm_intel_bo_unreference(brw->upload.bo);
brw->upload.bo = NULL;
+ brw->upload.next_offset = 0;
}
-static void
-wrap_buffers(struct brw_context *brw, GLuint size)
-{
- intel_upload_finish(brw);
-
- if (size < INTEL_UPLOAD_SIZE)
- size = INTEL_UPLOAD_SIZE;
-
- brw->upload.bo = drm_intel_bo_alloc(brw->bufmgr, "upload", size, 0);
- brw->upload.offset = 0;
-}
-
-void
-intel_upload_data(struct brw_context *brw,
- const void *ptr, GLuint size, GLuint align,
- drm_intel_bo **return_bo,
- GLuint *return_offset)
-{
- GLuint base, delta;
-
- base = ALIGN_NPOT(brw->upload.offset, align);
- if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
- wrap_buffers(brw, size);
- base = 0;
- }
-
- drm_intel_bo_reference(brw->upload.bo);
- *return_bo = brw->upload.bo;
- *return_offset = base;
-
- delta = base - brw->upload.offset;
- if (brw->upload.buffer_len &&
- brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer)) {
- drm_intel_bo_subdata(brw->upload.bo,
- brw->upload.buffer_offset,
- brw->upload.buffer_len,
- brw->upload.buffer);
- brw->upload.buffer_len = 0;
- }
-
- if (size < sizeof(brw->upload.buffer)) {
- if (brw->upload.buffer_len == 0)
- brw->upload.buffer_offset = base;
- else
- brw->upload.buffer_len += delta;
-
- memcpy(brw->upload.buffer + brw->upload.buffer_len, ptr, size);
- brw->upload.buffer_len += size;
- } else {
- drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
- }
-
- brw->upload.offset = base + size;
-}
-
+/**
+ * Interface for getting memory for uploading streamed data to the GPU
+ *
+ * In most cases, streamed data (for GPU state structures, for example) is
+ * uploaded through brw_state_batch(), since that interface allows relocations
+ * from the streamed space returned to other BOs. However, that interface has
+ * the restriction that the amount of space allocated has to be "small" (see
+ * estimated_max_prim_size in brw_draw.c).
+ *
+ * This interface, on the other hand, is able to handle arbitrary sized
+ * allocation requests, though it will batch small allocations into the same
+ * BO for efficiency and reduced memory footprint.
+ *
+ * \note The returned pointer is valid only until intel_upload_finish(), which
+ * will happen at batch flush or the next
+ * intel_upload_space()/intel_upload_data().
+ *
+ * \param out_bo Pointer to a BO, which must point to a valid BO or NULL on
+ * entry, and will have a reference to the new BO containing the state on
+ * return.
+ *
+ * \param out_offset Offset within the buffer object that the data will land.
+ */
void *
-intel_upload_map(struct brw_context *brw, GLuint size, GLuint align)
+intel_upload_space(struct brw_context *brw,
+ uint32_t size,
+ uint32_t alignment,
+ drm_intel_bo **out_bo,
+ uint32_t *out_offset)
{
- GLuint base, delta;
- char *ptr;
+ uint32_t offset;
- base = ALIGN_NPOT(brw->upload.offset, align);
- if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
- wrap_buffers(brw, size);
- base = 0;
+ offset = ALIGN_NPOT(brw->upload.next_offset, alignment);
+ if (brw->upload.bo && offset + size > brw->upload.bo->size) {
+ intel_upload_finish(brw);
+ offset = 0;
}
- delta = base - brw->upload.offset;
- if (brw->upload.buffer_len &&
- brw->upload.buffer_len + delta + size > sizeof(brw->upload.buffer)) {
- drm_intel_bo_subdata(brw->upload.bo,
- brw->upload.buffer_offset,
- brw->upload.buffer_len,
- brw->upload.buffer);
- brw->upload.buffer_len = 0;
+ if (!brw->upload.bo) {
+ brw->upload.bo = drm_intel_bo_alloc(brw->bufmgr, "streamed data",
+ MAX2(INTEL_UPLOAD_SIZE, size), 4096);
+ if (brw->has_llc)
+ drm_intel_bo_map(brw->upload.bo, true);
+ else
+ drm_intel_gem_bo_map_gtt(brw->upload.bo);
}
- if (size <= sizeof(brw->upload.buffer)) {
- if (brw->upload.buffer_len == 0)
- brw->upload.buffer_offset = base;
- else
- brw->upload.buffer_len += delta;
+ brw->upload.next_offset = offset + size;
- ptr = brw->upload.buffer + brw->upload.buffer_len;
- brw->upload.buffer_len += size;
- } else {
- ptr = malloc(size);
+ *out_offset = offset;
+ if (*out_bo != brw->upload.bo) {
+ drm_intel_bo_unreference(*out_bo);
+ *out_bo = brw->upload.bo;
+ drm_intel_bo_reference(brw->upload.bo);
}
- return ptr;
+ return brw->upload.bo->virtual + offset;
}
+/**
+ * Handy interface to upload some data to temporary GPU memory quickly.
+ *
+ * References to this memory should not be retained across batch flushes.
+ */
void
-intel_upload_unmap(struct brw_context *brw,
- const void *ptr, GLuint size, GLuint align,
- drm_intel_bo **return_bo,
- GLuint *return_offset)
+intel_upload_data(struct brw_context *brw,
+ const void *data,
+ uint32_t size,
+ uint32_t alignment,
+ drm_intel_bo **out_bo,
+ uint32_t *out_offset)
{
- GLuint base;
-
- base = ALIGN_NPOT(brw->upload.offset, align);
- if (size > sizeof(brw->upload.buffer)) {
- drm_intel_bo_subdata(brw->upload.bo, base, size, ptr);
- free((void*)ptr);
- }
-
- drm_intel_bo_reference(brw->upload.bo);
- *return_bo = brw->upload.bo;
- *return_offset = base;
-
- brw->upload.offset = base + size;
+ void *dst = intel_upload_space(brw, size, alignment, out_bo, out_offset);
+ memcpy(dst, data, size);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 15:47:03 +0000