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