266 lines
7.3 KiB
C
266 lines
7.3 KiB
C
/**************************************************************************
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*
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* Copyright 2006 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "intel_context.h"
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#include "intel_batchbuffer.h"
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#include "intel_buffer_objects.h"
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#include "intel_reg.h"
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#include "intel_bufmgr.h"
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#include "intel_buffers.h"
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static void
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intel_batchbuffer_reset(struct intel_context *intel);
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void
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intel_batchbuffer_init(struct intel_context *intel)
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{
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intel_batchbuffer_reset(intel);
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intel->batch.cpu_map = malloc(intel->maxBatchSize);
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intel->batch.map = intel->batch.cpu_map;
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}
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static void
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intel_batchbuffer_reset(struct intel_context *intel)
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{
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if (intel->batch.last_bo != NULL) {
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drm_intel_bo_unreference(intel->batch.last_bo);
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intel->batch.last_bo = NULL;
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}
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intel->batch.last_bo = intel->batch.bo;
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intel->batch.bo = drm_intel_bo_alloc(intel->bufmgr, "batchbuffer",
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intel->maxBatchSize, 4096);
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intel->batch.reserved_space = BATCH_RESERVED;
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intel->batch.used = 0;
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}
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void
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intel_batchbuffer_free(struct intel_context *intel)
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{
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free(intel->batch.cpu_map);
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drm_intel_bo_unreference(intel->batch.last_bo);
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drm_intel_bo_unreference(intel->batch.bo);
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}
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static void
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do_batch_dump(struct intel_context *intel)
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{
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struct drm_intel_decode *decode;
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struct intel_batchbuffer *batch = &intel->batch;
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int ret;
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decode = drm_intel_decode_context_alloc(intel->intelScreen->deviceID);
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if (!decode)
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return;
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ret = drm_intel_bo_map(batch->bo, false);
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if (ret == 0) {
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drm_intel_decode_set_batch_pointer(decode,
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batch->bo->virtual,
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batch->bo->offset,
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batch->used);
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} else {
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fprintf(stderr,
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"WARNING: failed to map batchbuffer (%s), "
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"dumping uploaded data instead.\n", strerror(ret));
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drm_intel_decode_set_batch_pointer(decode,
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batch->map,
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batch->bo->offset,
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batch->used);
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}
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drm_intel_decode(decode);
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drm_intel_decode_context_free(decode);
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if (ret == 0) {
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drm_intel_bo_unmap(batch->bo);
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if (intel->vtbl.debug_batch != NULL)
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intel->vtbl.debug_batch(intel);
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}
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}
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/* TODO: Push this whole function into bufmgr.
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*/
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static int
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do_flush_locked(struct intel_context *intel)
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{
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struct intel_batchbuffer *batch = &intel->batch;
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int ret = 0;
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ret = drm_intel_bo_subdata(batch->bo, 0, 4*batch->used, batch->map);
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if (!intel->intelScreen->no_hw) {
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if (ret == 0) {
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if (unlikely(INTEL_DEBUG & DEBUG_AUB) && intel->vtbl.annotate_aub)
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intel->vtbl.annotate_aub(intel);
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ret = drm_intel_bo_mrb_exec(batch->bo, 4 * batch->used, NULL, 0, 0,
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I915_EXEC_RENDER);
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}
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}
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if (unlikely(INTEL_DEBUG & DEBUG_BATCH))
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do_batch_dump(intel);
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if (ret != 0) {
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fprintf(stderr, "intel_do_flush_locked failed: %s\n", strerror(-ret));
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exit(1);
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}
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intel->vtbl.new_batch(intel);
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return ret;
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}
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int
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_intel_batchbuffer_flush(struct intel_context *intel,
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const char *file, int line)
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{
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int ret;
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if (intel->batch.used == 0)
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return 0;
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if (intel->first_post_swapbuffers_batch == NULL) {
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intel->first_post_swapbuffers_batch = intel->batch.bo;
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drm_intel_bo_reference(intel->first_post_swapbuffers_batch);
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}
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if (unlikely(INTEL_DEBUG & DEBUG_BATCH))
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fprintf(stderr, "%s:%d: Batchbuffer flush with %db used\n", file, line,
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4*intel->batch.used);
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intel->batch.reserved_space = 0;
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if (intel->vtbl.finish_batch)
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intel->vtbl.finish_batch(intel);
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/* Mark the end of the buffer. */
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intel_batchbuffer_emit_dword(intel, MI_BATCH_BUFFER_END);
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if (intel->batch.used & 1) {
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/* Round batchbuffer usage to 2 DWORDs. */
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intel_batchbuffer_emit_dword(intel, MI_NOOP);
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}
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intel_upload_finish(intel);
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/* Check that we didn't just wrap our batchbuffer at a bad time. */
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assert(!intel->no_batch_wrap);
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ret = do_flush_locked(intel);
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if (unlikely(INTEL_DEBUG & DEBUG_SYNC)) {
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fprintf(stderr, "waiting for idle\n");
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drm_intel_bo_wait_rendering(intel->batch.bo);
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}
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/* Reset the buffer:
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*/
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intel_batchbuffer_reset(intel);
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return ret;
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}
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/* This is the only way buffers get added to the validate list.
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*/
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bool
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intel_batchbuffer_emit_reloc(struct intel_context *intel,
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drm_intel_bo *buffer,
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uint32_t read_domains, uint32_t write_domain,
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uint32_t delta)
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{
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int ret;
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ret = drm_intel_bo_emit_reloc(intel->batch.bo, 4*intel->batch.used,
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buffer, delta,
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read_domains, write_domain);
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assert(ret == 0);
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(void)ret;
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/*
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* Using the old buffer offset, write in what the right data would be, in case
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* the buffer doesn't move and we can short-circuit the relocation processing
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* in the kernel
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*/
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intel_batchbuffer_emit_dword(intel, buffer->offset + delta);
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return true;
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}
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bool
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intel_batchbuffer_emit_reloc_fenced(struct intel_context *intel,
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drm_intel_bo *buffer,
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uint32_t read_domains,
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uint32_t write_domain,
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uint32_t delta)
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{
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int ret;
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ret = drm_intel_bo_emit_reloc_fence(intel->batch.bo, 4*intel->batch.used,
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buffer, delta,
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read_domains, write_domain);
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assert(ret == 0);
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(void)ret;
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/*
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* Using the old buffer offset, write in what the right data would
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* be, in case the buffer doesn't move and we can short-circuit the
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* relocation processing in the kernel
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*/
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intel_batchbuffer_emit_dword(intel, buffer->offset + delta);
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return true;
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}
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void
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intel_batchbuffer_data(struct intel_context *intel,
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const void *data, GLuint bytes)
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{
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assert((bytes & 3) == 0);
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intel_batchbuffer_require_space(intel, bytes);
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memcpy(intel->batch.map + intel->batch.used, data, bytes);
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intel->batch.used += bytes >> 2;
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}
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/* Emit a pipelined flush to either flush render and texture cache for
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* reading from a FBO-drawn texture, or flush so that frontbuffer
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* render appears on the screen in DRI1.
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*
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* This is also used for the always_flush_cache driconf debug option.
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*/
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void
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intel_batchbuffer_emit_mi_flush(struct intel_context *intel)
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{
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BEGIN_BATCH(1);
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OUT_BATCH(MI_FLUSH);
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ADVANCE_BATCH();
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}
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