diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/Makefile.sources | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_compute.c | 121 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.c | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_context.h | 4 |
4 files changed, 127 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/Makefile.sources b/src/mesa/drivers/dri/i965/Makefile.sources index cf5dba4c305..1ae93e1d5f3 100644 --- a/src/mesa/drivers/dri/i965/Makefile.sources +++ b/src/mesa/drivers/dri/i965/Makefile.sources @@ -17,6 +17,7 @@ i965_FILES = \ brw_clip_tri.c \ brw_clip_unfilled.c \ brw_clip_util.c \ + brw_compute.c \ brw_context.c \ brw_context.h \ brw_cs.cpp \ diff --git a/src/mesa/drivers/dri/i965/brw_compute.c b/src/mesa/drivers/dri/i965/brw_compute.c new file mode 100644 index 00000000000..baed7010a3d --- /dev/null +++ b/src/mesa/drivers/dri/i965/brw_compute.c @@ -0,0 +1,121 @@ +/* + * Copyright © 2014 Intel Corporation + * + * 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, sublicense, + * 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 NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS 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 <sys/errno.h> + +#include "main/condrender.h" +#include "main/glheader.h" +#include "main/mtypes.h" +#include "main/state.h" +#include "brw_context.h" +#include "brw_draw.h" +#include "brw_state.h" +#include "intel_batchbuffer.h" + + +static void +brw_emit_gpgpu_walker(struct brw_context *brw, const GLuint *num_groups) +{ + _mesa_problem(&brw->ctx, "TODO: implement brw_emit_gpgpu_walker"); +} + + +static void +brw_dispatch_compute(struct gl_context *ctx, const GLuint *num_groups) +{ + struct brw_context *brw = brw_context(ctx); + int estimated_buffer_space_needed; + bool fail_next = false; + + if (!_mesa_check_conditional_render(ctx)) + return; + + if (ctx->NewState) + _mesa_update_state(ctx); + + brw_validate_textures(brw); + + const int sampler_state_size = 16; /* 16 bytes */ + estimated_buffer_space_needed = 512; /* batchbuffer commands */ + estimated_buffer_space_needed += (BRW_MAX_TEX_UNIT * + (sampler_state_size + + sizeof(struct gen5_sampler_default_color))); + estimated_buffer_space_needed += 1024; /* push constants */ + estimated_buffer_space_needed += 512; /* misc. pad */ + + /* Flush the batch if it's approaching full, so that we don't wrap while + * we've got validated state that needs to be in the same batch as the + * primitives. + */ + intel_batchbuffer_require_space(brw, estimated_buffer_space_needed, + RENDER_RING); + intel_batchbuffer_save_state(brw); + + retry: + brw->no_batch_wrap = true; + brw_upload_compute_state(brw); + + brw_emit_gpgpu_walker(brw, num_groups); + + brw->no_batch_wrap = false; + + if (dri_bufmgr_check_aperture_space(&brw->batch.bo, 1)) { + if (!fail_next) { + intel_batchbuffer_reset_to_saved(brw); + intel_batchbuffer_flush(brw); + fail_next = true; + goto retry; + } else { + if (intel_batchbuffer_flush(brw) == -ENOSPC) { + static bool warned = false; + + if (!warned) { + fprintf(stderr, "i965: Single compute shader dispatch " + "exceeded available aperture space\n"); + warned = true; + } + } + } + } + + /* Now that we know we haven't run out of aperture space, we can safely + * reset the dirty bits. + */ + brw_compute_state_finished(brw); + + if (brw->always_flush_batch) + intel_batchbuffer_flush(brw); + + brw_state_cache_check_size(brw); + + /* Note: since compute shaders can't write to framebuffers, there's no need + * to call brw_postdraw_set_buffers_need_resolve(). + */ +} + + +void +brw_init_compute_functions(struct dd_function_table *functions) +{ + functions->DispatchCompute = brw_dispatch_compute; +} diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c index 1f0da35a2c6..30263d03c33 100644 --- a/src/mesa/drivers/dri/i965/brw_context.c +++ b/src/mesa/drivers/dri/i965/brw_context.c @@ -288,6 +288,7 @@ brw_init_driver_functions(struct brw_context *brw, gen6_init_queryobj_functions(functions); else gen4_init_queryobj_functions(functions); + brw_init_compute_functions(functions); functions->QuerySamplesForFormat = brw_query_samples_for_format; diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index daa8102dedc..1d5ef82abe3 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -1829,6 +1829,10 @@ gen7_emit_urb_state(struct brw_context *brw, extern GLenum brw_get_graphics_reset_status(struct gl_context *ctx); +/* brw_compute.c */ +extern void +brw_init_compute_functions(struct dd_function_table *functions); + /*====================================================================== * Inline conversion functions. These are better-typed than the * macros used previously: |