* Batched upload via BOs.
*/
-#include "main/imports.h"
-#include "main/mtypes.h"
+#include "util/imports.h"
#include "main/macros.h"
-#include "main/bufferobj.h"
-
+#include "brw_bufmgr.h"
#include "brw_context.h"
-#include "intel_blit.h"
#include "intel_buffer_objects.h"
-#include "intel_batchbuffer.h"
-#include "intel_fbo.h"
-#include "intel_mipmap_tree.h"
-#include "intel_regions.h"
-
-#include "brw_context.h"
-
-#define INTEL_UPLOAD_SIZE (64*1024)
-
-/**
- * Like ALIGN(), but works with a non-power-of-two alignment.
- */
-#define ALIGN_NPOT(value, alignment) \
- (((value) + (alignment) - 1) / (alignment) * (alignment))
void
-intel_upload_finish(struct brw_context *brw)
+brw_upload_finish(struct brw_uploader *upload)
{
- if (!brw->upload.bo)
+ assert((upload->bo == NULL) == (upload->map == NULL));
+ if (!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_unreference(brw->upload.bo);
- brw->upload.bo = NULL;
+ brw_bo_unmap(upload->bo);
+ brw_bo_unreference(upload->bo);
+ upload->bo = NULL;
+ upload->map = NULL;
+ 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)
+/**
+ * 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".
+ *
+ * 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 brw_upload_finish().
+ *
+ * \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 *
+brw_upload_space(struct brw_uploader *upload,
+ uint32_t size,
+ uint32_t alignment,
+ struct brw_bo **out_bo,
+ uint32_t *out_offset)
{
- GLuint base, delta;
+ 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(upload->next_offset, alignment);
+ if (upload->bo && offset + size > upload->bo->size) {
+ brw_upload_finish(upload);
+ offset = 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;
+ assert((upload->bo == NULL) == (upload->map == NULL));
+ if (!upload->bo) {
+ upload->bo = brw_bo_alloc(upload->bufmgr, "streamed data",
+ MAX2(upload->default_size, size),
+ BRW_MEMZONE_OTHER);
+ upload->map = brw_bo_map(NULL, upload->bo,
+ MAP_READ | MAP_WRITE |
+ MAP_PERSISTENT | MAP_ASYNC);
}
- if (size < sizeof(brw->upload.buffer)) {
- if (brw->upload.buffer_len == 0)
- brw->upload.buffer_offset = base;
- else
- brw->upload.buffer_len += delta;
+ upload->next_offset = offset + size;
- 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);
+ *out_offset = offset;
+ if (*out_bo != upload->bo) {
+ brw_bo_unreference(*out_bo);
+ *out_bo = upload->bo;
+ brw_bo_reference(upload->bo);
}
- brw->upload.offset = base + size;
+ return upload->map + offset;
}
-void *
-intel_upload_map(struct brw_context *brw, GLuint size, GLuint align)
+/**
+ * Handy interface to upload some data to temporary GPU memory quickly.
+ *
+ * References to this memory should not be retained across batch flushes.
+ */
+void
+brw_upload_data(struct brw_uploader *upload,
+ const void *data,
+ uint32_t size,
+ uint32_t alignment,
+ struct brw_bo **out_bo,
+ uint32_t *out_offset)
{
- GLuint base, delta;
- char *ptr;
-
- base = ALIGN_NPOT(brw->upload.offset, align);
- if (brw->upload.bo == NULL || base + size > brw->upload.bo->size) {
- wrap_buffers(brw, size);
- base = 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 (size <= sizeof(brw->upload.buffer)) {
- if (brw->upload.buffer_len == 0)
- brw->upload.buffer_offset = base;
- else
- brw->upload.buffer_len += delta;
-
- ptr = brw->upload.buffer + brw->upload.buffer_len;
- brw->upload.buffer_len += size;
- } else {
- ptr = malloc(size);
- }
-
- return ptr;
+ void *dst = brw_upload_space(upload, size, alignment, out_bo, out_offset);
+ memcpy(dst, data, size);
}
void
-intel_upload_unmap(struct brw_context *brw,
- const void *ptr, GLuint size, GLuint align,
- drm_intel_bo **return_bo,
- GLuint *return_offset)
+brw_upload_init(struct brw_uploader *upload,
+ struct brw_bufmgr *bufmgr,
+ unsigned default_size)
{
- 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;
+ upload->bufmgr = bufmgr;
+ upload->bo = NULL;
+ upload->map = NULL;
+ upload->next_offset = 0;
+ upload->default_size = default_size;
}
projects / mesa.git / blobdiff