diff options
Diffstat (limited to 'src/intel_batchbuffer.c')
| -rw-r--r-- | src/intel_batchbuffer.c | 285 |
1 files changed, 285 insertions, 0 deletions
diff --git a/src/intel_batchbuffer.c b/src/intel_batchbuffer.c new file mode 100644 index 0000000..f310793 --- /dev/null +++ b/src/intel_batchbuffer.c @@ -0,0 +1,285 @@ +/************************************************************************** + * + * 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 <stdlib.h> +#include <string.h> +#include <assert.h> + +#include <va/va_backend.h> + +#include "intel_batchbuffer.h" + +static void +intel_batchbuffer_reset(struct intel_batchbuffer *batch) +{ + struct intel_driver_data *intel = batch->intel; + int batch_size = BATCH_SIZE; + + assert(batch->flag == I915_EXEC_RENDER || + batch->flag == I915_EXEC_BLT || + batch->flag == I915_EXEC_BSD); + + dri_bo_unreference(batch->buffer); + batch->buffer = dri_bo_alloc(intel->bufmgr, + "batch buffer", + batch_size, + 0x1000); + assert(batch->buffer); + dri_bo_map(batch->buffer, 1); + assert(batch->buffer->virtual); + batch->map = batch->buffer->virtual; + batch->size = batch_size; + batch->ptr = batch->map; + batch->atomic = 0; +} + +static unsigned int +intel_batchbuffer_space(struct intel_batchbuffer *batch) +{ + return (batch->size - BATCH_RESERVED) - (batch->ptr - batch->map); +} + + +struct intel_batchbuffer * +intel_batchbuffer_new(struct intel_driver_data *intel, int flag) +{ + struct intel_batchbuffer *batch = calloc(1, sizeof(*batch)); + assert(flag == I915_EXEC_RENDER || + flag == I915_EXEC_BSD || + flag == I915_EXEC_BLT); + + batch->intel = intel; + batch->flag = flag; + batch->run = drm_intel_bo_mrb_exec; + intel_batchbuffer_reset(batch); + + return batch; +} + +void intel_batchbuffer_free(struct intel_batchbuffer *batch) +{ + if (batch->map) { + dri_bo_unmap(batch->buffer); + batch->map = NULL; + } + + dri_bo_unreference(batch->buffer); + free(batch); +} + +void +intel_batchbuffer_flush(struct intel_batchbuffer *batch) +{ + unsigned int used = batch->ptr - batch->map; + + if (used == 0) { + return; + } + + if ((used & 4) == 0) { + *(unsigned int*)batch->ptr = 0; + batch->ptr += 4; + } + + *(unsigned int*)batch->ptr = MI_BATCH_BUFFER_END; + batch->ptr += 4; + dri_bo_unmap(batch->buffer); + used = batch->ptr - batch->map; + batch->run(batch->buffer, used, 0, 0, 0, batch->flag); + intel_batchbuffer_reset(batch); +} + +void +intel_batchbuffer_emit_dword(struct intel_batchbuffer *batch, unsigned int x) +{ + assert(intel_batchbuffer_space(batch) >= 4); + *(unsigned int *)batch->ptr = x; + batch->ptr += 4; +} + +void +intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch, dri_bo *bo, + uint32_t read_domains, uint32_t write_domains, + uint32_t delta) +{ + assert(batch->ptr - batch->map < batch->size); + dri_bo_emit_reloc(batch->buffer, read_domains, write_domains, + delta, batch->ptr - batch->map, bo); + intel_batchbuffer_emit_dword(batch, bo->offset + delta); +} + +void +intel_batchbuffer_require_space(struct intel_batchbuffer *batch, + unsigned int size) +{ + assert(size < batch->size - 8); + + if (intel_batchbuffer_space(batch) < size) { + intel_batchbuffer_flush(batch); + } +} + +void +intel_batchbuffer_data(struct intel_batchbuffer *batch, + void *data, + unsigned int size) +{ + assert((size & 3) == 0); + intel_batchbuffer_require_space(batch, size); + + assert(batch->ptr); + memcpy(batch->ptr, data, size); + batch->ptr += size; +} + +void +intel_batchbuffer_emit_mi_flush(struct intel_batchbuffer *batch) +{ + struct intel_driver_data *intel = batch->intel; + + if (IS_GEN6(intel->device_id) || + IS_GEN7(intel->device_id)) { + if (batch->flag == I915_EXEC_RENDER) { + BEGIN_BATCH(batch, 4); + OUT_BATCH(batch, CMD_PIPE_CONTROL | 0x2); + + if (IS_GEN6(intel->device_id)) + OUT_BATCH(batch, + CMD_PIPE_CONTROL_WC_FLUSH | + CMD_PIPE_CONTROL_TC_FLUSH | + CMD_PIPE_CONTROL_NOWRITE); + else + OUT_BATCH(batch, + CMD_PIPE_CONTROL_WC_FLUSH | + CMD_PIPE_CONTROL_TC_FLUSH | + CMD_PIPE_CONTROL_DC_FLUSH | + CMD_PIPE_CONTROL_NOWRITE); + + OUT_BATCH(batch, 0); + OUT_BATCH(batch, 0); + ADVANCE_BATCH(batch); + } else { + if (batch->flag == I915_EXEC_BLT) { + BEGIN_BLT_BATCH(batch, 4); + OUT_BLT_BATCH(batch, MI_FLUSH_DW); + OUT_BLT_BATCH(batch, 0); + OUT_BLT_BATCH(batch, 0); + OUT_BLT_BATCH(batch, 0); + ADVANCE_BLT_BATCH(batch); + } else { + assert(batch->flag == I915_EXEC_BSD); + BEGIN_BCS_BATCH(batch, 4); + OUT_BCS_BATCH(batch, MI_FLUSH_DW | MI_FLUSH_DW_VIDEO_PIPELINE_CACHE_INVALIDATE); + OUT_BCS_BATCH(batch, 0); + OUT_BCS_BATCH(batch, 0); + OUT_BCS_BATCH(batch, 0); + ADVANCE_BCS_BATCH(batch); + } + } + } else { + if (batch->flag == I915_EXEC_RENDER) { + BEGIN_BATCH(batch, 1); + OUT_BATCH(batch, MI_FLUSH | MI_FLUSH_STATE_INSTRUCTION_CACHE_INVALIDATE); + ADVANCE_BATCH(batch); + } else { + assert(batch->flag == I915_EXEC_BSD); + BEGIN_BCS_BATCH(batch, 1); + OUT_BCS_BATCH(batch, MI_FLUSH | MI_FLUSH_STATE_INSTRUCTION_CACHE_INVALIDATE); + ADVANCE_BCS_BATCH(batch); + } + } +} + +void +intel_batchbuffer_begin_batch(struct intel_batchbuffer *batch, int total) +{ + batch->emit_total = total * 4; + batch->emit_start = batch->ptr; +} + +void +intel_batchbuffer_advance_batch(struct intel_batchbuffer *batch) +{ + assert(batch->emit_total == (batch->ptr - batch->emit_start)); +} + +void +intel_batchbuffer_check_batchbuffer_flag(struct intel_batchbuffer *batch, int flag) +{ + if (flag != I915_EXEC_RENDER && + flag != I915_EXEC_BLT && + flag != I915_EXEC_BSD) + return; + + if (batch->flag == flag) + return; + + intel_batchbuffer_flush(batch); + batch->flag = flag; +} + +int +intel_batchbuffer_check_free_space(struct intel_batchbuffer *batch, int size) +{ + return intel_batchbuffer_space(batch) >= size; +} + +static void +intel_batchbuffer_start_atomic_helper(struct intel_batchbuffer *batch, + int flag, + unsigned int size) +{ + assert(!batch->atomic); + intel_batchbuffer_check_batchbuffer_flag(batch, flag); + intel_batchbuffer_require_space(batch, size); + batch->atomic = 1; +} + +void +intel_batchbuffer_start_atomic(struct intel_batchbuffer *batch, unsigned int size) +{ + intel_batchbuffer_start_atomic_helper(batch, I915_EXEC_RENDER, size); +} + +void +intel_batchbuffer_start_atomic_blt(struct intel_batchbuffer *batch, unsigned int size) +{ + intel_batchbuffer_start_atomic_helper(batch, I915_EXEC_BLT, size); +} + +void +intel_batchbuffer_start_atomic_bcs(struct intel_batchbuffer *batch, unsigned int size) +{ + intel_batchbuffer_start_atomic_helper(batch, I915_EXEC_BSD, size); +} + +void +intel_batchbuffer_end_atomic(struct intel_batchbuffer *batch) +{ + assert(batch->atomic); + batch->atomic = 0; +} |