void si_context_gfx_flush(void *context, unsigned flags,
struct pipe_fence_handle **fence)
{
struct si_context *ctx = context;
struct radeon_winsys_cs *cs = ctx->b.rings.gfx.cs;
struct radeon_winsys *ws = ctx->b.ws;
if (cs->cdw == ctx->b.initial_gfx_cs_size &&
(!fence || ctx->last_gfx_fence)) {
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
if (!(flags & RADEON_FLUSH_ASYNC))
ws->cs_sync_flush(cs);
return;
}
ctx->b.rings.gfx.flushing = true;
r600_preflush_suspend_features(&ctx->b);
ctx->b.flags |= SI_CONTEXT_FLUSH_AND_INV_FRAMEBUFFER |
SI_CONTEXT_INV_TC_L1 |
SI_CONTEXT_INV_TC_L2 |
/* this is probably not needed anymore */
SI_CONTEXT_PS_PARTIAL_FLUSH;
si_emit_cache_flush(ctx, NULL);
/* force to keep tiling flags */
flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
if (ctx->trace_buf)
si_trace_emit(ctx);
/* Save the IB for debug contexts. */
if (ctx->is_debug) {
free(ctx->last_ib);
ctx->last_ib_dw_size = cs->cdw;
ctx->last_ib = malloc(cs->cdw * 4);
memcpy(ctx->last_ib, cs->buf, cs->cdw * 4);
r600_resource_reference(&ctx->last_trace_buf, ctx->trace_buf);
r600_resource_reference(&ctx->trace_buf, NULL);
}
/* Flush the CS. */
ws->cs_flush(cs, flags, &ctx->last_gfx_fence,
ctx->screen->b.cs_count++);
ctx->b.rings.gfx.flushing = false;
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
si_begin_new_cs(ctx);
}
void si_context_gfx_flush(void *context, unsigned flags,
struct pipe_fence_handle **fence)
{
struct si_context *ctx = context;
struct radeon_winsys_cs *cs = ctx->b.rings.gfx.cs;
if (cs->cdw == ctx->b.initial_gfx_cs_size && !fence)
return;
ctx->b.rings.gfx.flushing = true;
r600_preflush_suspend_features(&ctx->b);
ctx->b.flags |= R600_CONTEXT_FLUSH_AND_INV_CB |
R600_CONTEXT_FLUSH_AND_INV_CB_META |
R600_CONTEXT_FLUSH_AND_INV_DB |
R600_CONTEXT_FLUSH_AND_INV_DB_META |
R600_CONTEXT_INV_TEX_CACHE |
/* this is probably not needed anymore */
R600_CONTEXT_PS_PARTIAL_FLUSH;
si_emit_cache_flush(&ctx->b, NULL);
/* force to keep tiling flags */
flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
/* Flush the CS. */
ctx->b.ws->cs_flush(cs, flags, fence, ctx->screen->b.cs_count++);
ctx->b.rings.gfx.flushing = false;
#if SI_TRACE_CS
if (ctx->screen->b.trace_bo) {
struct si_screen *sscreen = ctx->screen;
unsigned i;
for (i = 0; i < 10; i++) {
usleep(5);
if (!ctx->b.ws->buffer_is_busy(sscreen->b.trace_bo->buf, RADEON_USAGE_READWRITE)) {
break;
}
}
if (i == 10) {
fprintf(stderr, "timeout on cs lockup likely happen at cs %d dw %d\n",
sscreen->b.trace_ptr[1], sscreen->b.trace_ptr[0]);
} else {
fprintf(stderr, "cs %d executed in %dms\n", sscreen->b.trace_ptr[1], i * 5);
}
}
#endif
si_begin_new_cs(ctx);
}
void si_context_gfx_flush(void *context, unsigned flags,
struct pipe_fence_handle **fence)
{
struct si_context *ctx = context;
struct radeon_winsys_cs *cs = ctx->b.gfx.cs;
struct radeon_winsys *ws = ctx->b.ws;
if (ctx->gfx_flush_in_progress)
return;
ctx->gfx_flush_in_progress = true;
if (cs->cdw == ctx->b.initial_gfx_cs_size &&
(!fence || ctx->last_gfx_fence)) {
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
if (!(flags & RADEON_FLUSH_ASYNC))
ws->cs_sync_flush(cs);
ctx->gfx_flush_in_progress = false;
return;
}
r600_preflush_suspend_features(&ctx->b);
ctx->b.flags |= SI_CONTEXT_FLUSH_AND_INV_FRAMEBUFFER |
SI_CONTEXT_INV_VMEM_L1 |
SI_CONTEXT_INV_GLOBAL_L2 |
/* this is probably not needed anymore */
SI_CONTEXT_PS_PARTIAL_FLUSH;
si_emit_cache_flush(ctx, NULL);
/* force to keep tiling flags */
flags |= RADEON_FLUSH_KEEP_TILING_FLAGS;
if (ctx->trace_buf)
si_trace_emit(ctx);
if (ctx->is_debug) {
unsigned i;
/* Save the IB for debug contexts. */
free(ctx->last_ib);
ctx->last_ib_dw_size = cs->cdw;
ctx->last_ib = malloc(cs->cdw * 4);
memcpy(ctx->last_ib, cs->buf, cs->cdw * 4);
r600_resource_reference(&ctx->last_trace_buf, ctx->trace_buf);
r600_resource_reference(&ctx->trace_buf, NULL);
/* Save the buffer list. */
if (ctx->last_bo_list) {
for (i = 0; i < ctx->last_bo_count; i++)
pb_reference(&ctx->last_bo_list[i].buf, NULL);
free(ctx->last_bo_list);
}
ctx->last_bo_count = ws->cs_get_buffer_list(cs, NULL);
ctx->last_bo_list = calloc(ctx->last_bo_count,
sizeof(ctx->last_bo_list[0]));
ws->cs_get_buffer_list(cs, ctx->last_bo_list);
}
/* Flush the CS. */
ws->cs_flush(cs, flags, &ctx->last_gfx_fence,
ctx->screen->b.cs_count++);
if (fence)
ws->fence_reference(fence, ctx->last_gfx_fence);
/* Check VM faults if needed. */
if (ctx->screen->b.debug_flags & DBG_CHECK_VM)
si_check_vm_faults(ctx);
si_begin_new_cs(ctx);
ctx->gfx_flush_in_progress = false;
}
static struct pipe_context *si_create_context(struct pipe_screen *screen, void *priv)
{
struct si_context *sctx = CALLOC_STRUCT(si_context);
struct si_screen* sscreen = (struct si_screen *)screen;
struct radeon_winsys *ws = sscreen->b.ws;
int shader, i;
if (sctx == NULL)
return NULL;
sctx->b.b.screen = screen; /* this must be set first */
sctx->b.b.priv = priv;
sctx->b.b.destroy = si_destroy_context;
sctx->screen = sscreen; /* Easy accessing of screen/winsys. */
if (!r600_common_context_init(&sctx->b, &sscreen->b))
goto fail;
si_init_blit_functions(sctx);
si_init_compute_functions(sctx);
if (sscreen->b.info.has_uvd) {
sctx->b.b.create_video_codec = si_uvd_create_decoder;
sctx->b.b.create_video_buffer = si_video_buffer_create;
} else {
sctx->b.b.create_video_codec = vl_create_decoder;
sctx->b.b.create_video_buffer = vl_video_buffer_create;
}
sctx->b.rings.gfx.cs = ws->cs_create(ws, RING_GFX, si_context_gfx_flush,
sctx, NULL);
sctx->b.rings.gfx.flush = si_context_gfx_flush;
si_init_all_descriptors(sctx);
/* Initialize cache_flush. */
sctx->cache_flush = si_atom_cache_flush;
sctx->atoms.s.cache_flush = &sctx->cache_flush;
sctx->msaa_config = si_atom_msaa_config;
sctx->atoms.s.msaa_config = &sctx->msaa_config;
sctx->atoms.s.streamout_begin = &sctx->b.streamout.begin_atom;
sctx->atoms.s.streamout_enable = &sctx->b.streamout.enable_atom;
switch (sctx->b.chip_class) {
case SI:
case CIK:
si_init_state_functions(sctx);
si_init_config(sctx);
break;
default:
R600_ERR("Unsupported chip class %d.\n", sctx->b.chip_class);
goto fail;
}
sctx->blitter = util_blitter_create(&sctx->b.b);
if (sctx->blitter == NULL)
goto fail;
sctx->blitter->draw_rectangle = r600_draw_rectangle;
sctx->dummy_pixel_shader =
util_make_fragment_cloneinput_shader(&sctx->b.b, 0,
TGSI_SEMANTIC_GENERIC,
TGSI_INTERPOLATE_CONSTANT);
sctx->b.b.bind_fs_state(&sctx->b.b, sctx->dummy_pixel_shader);
/* these must be last */
si_begin_new_cs(sctx);
r600_query_init_backend_mask(&sctx->b); /* this emits commands and must be last */
/* CIK cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
* with a NULL buffer). We need to use a dummy buffer instead. */
if (sctx->b.chip_class == CIK) {
sctx->null_const_buf.buffer = pipe_buffer_create(screen, PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_DEFAULT, 16);
sctx->null_const_buf.buffer_size = sctx->null_const_buf.buffer->width0;
for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
for (i = 0; i < SI_NUM_CONST_BUFFERS; i++) {
sctx->b.b.set_constant_buffer(&sctx->b.b, shader, i,
&sctx->null_const_buf);
}
}
/* Clear the NULL constant buffer, because loads should return zeros. */
sctx->b.clear_buffer(&sctx->b.b, sctx->null_const_buf.buffer, 0,
sctx->null_const_buf.buffer->width0, 0);
}
return &sctx->b.b;
fail:
si_destroy_context(&sctx->b.b);
return NULL;
}
static struct pipe_context *si_create_context(struct pipe_screen *screen,
void *priv, unsigned flags)
{
struct si_context *sctx = CALLOC_STRUCT(si_context);
struct si_screen* sscreen = (struct si_screen *)screen;
struct radeon_winsys *ws = sscreen->b.ws;
LLVMTargetRef r600_target;
const char *triple = "amdgcn--";
int shader, i;
if (!sctx)
return NULL;
if (sscreen->b.debug_flags & DBG_CHECK_VM)
flags |= PIPE_CONTEXT_DEBUG;
sctx->b.b.screen = screen; /* this must be set first */
sctx->b.b.priv = priv;
sctx->b.b.destroy = si_destroy_context;
sctx->b.set_atom_dirty = (void *)si_set_atom_dirty;
sctx->screen = sscreen; /* Easy accessing of screen/winsys. */
sctx->is_debug = (flags & PIPE_CONTEXT_DEBUG) != 0;
if (!r600_common_context_init(&sctx->b, &sscreen->b))
goto fail;
if (sscreen->b.info.drm_major == 3)
sctx->b.b.get_device_reset_status = si_amdgpu_get_reset_status;
si_init_blit_functions(sctx);
si_init_compute_functions(sctx);
si_init_cp_dma_functions(sctx);
si_init_debug_functions(sctx);
if (sscreen->b.info.has_uvd) {
sctx->b.b.create_video_codec = si_uvd_create_decoder;
sctx->b.b.create_video_buffer = si_video_buffer_create;
} else {
sctx->b.b.create_video_codec = vl_create_decoder;
sctx->b.b.create_video_buffer = vl_video_buffer_create;
}
sctx->b.gfx.cs = ws->cs_create(sctx->b.ctx, RING_GFX,
si_context_gfx_flush, sctx);
if (!(sscreen->b.debug_flags & DBG_NO_CE) && ws->cs_add_const_ib) {
sctx->ce_ib = ws->cs_add_const_ib(sctx->b.gfx.cs);
if (!sctx->ce_ib)
goto fail;
if (ws->cs_add_const_preamble_ib) {
sctx->ce_preamble_ib =
ws->cs_add_const_preamble_ib(sctx->b.gfx.cs);
if (!sctx->ce_preamble_ib)
goto fail;
}
sctx->ce_suballocator =
u_suballocator_create(&sctx->b.b, 1024 * 1024,
64, PIPE_BIND_CUSTOM,
PIPE_USAGE_DEFAULT, FALSE);
if (!sctx->ce_suballocator)
goto fail;
}
sctx->b.gfx.flush = si_context_gfx_flush;
/* Border colors. */
sctx->border_color_table = malloc(SI_MAX_BORDER_COLORS *
sizeof(*sctx->border_color_table));
if (!sctx->border_color_table)
goto fail;
sctx->border_color_buffer = (struct r600_resource*)
pipe_buffer_create(screen, PIPE_BIND_CUSTOM, PIPE_USAGE_DEFAULT,
SI_MAX_BORDER_COLORS *
sizeof(*sctx->border_color_table));
if (!sctx->border_color_buffer)
goto fail;
sctx->border_color_map =
ws->buffer_map(sctx->border_color_buffer->buf,
NULL, PIPE_TRANSFER_WRITE);
if (!sctx->border_color_map)
goto fail;
si_init_all_descriptors(sctx);
si_init_state_functions(sctx);
si_init_shader_functions(sctx);
if (sctx->b.chip_class >= CIK)
cik_init_sdma_functions(sctx);
else
si_init_dma_functions(sctx);
if (sscreen->b.debug_flags & DBG_FORCE_DMA)
sctx->b.b.resource_copy_region = sctx->b.dma_copy;
sctx->blitter = util_blitter_create(&sctx->b.b);
if (sctx->blitter == NULL)
goto fail;
sctx->blitter->draw_rectangle = r600_draw_rectangle;
sctx->sample_mask.sample_mask = 0xffff;
/* these must be last */
si_begin_new_cs(sctx);
r600_query_init_backend_mask(&sctx->b); /* this emits commands and must be last */
/* CIK cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
* with a NULL buffer). We need to use a dummy buffer instead. */
if (sctx->b.chip_class == CIK) {
sctx->null_const_buf.buffer = pipe_buffer_create(screen, PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_DEFAULT, 16);
if (!sctx->null_const_buf.buffer)
goto fail;
sctx->null_const_buf.buffer_size = sctx->null_const_buf.buffer->width0;
for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
for (i = 0; i < SI_NUM_CONST_BUFFERS; i++) {
sctx->b.b.set_constant_buffer(&sctx->b.b, shader, i,
&sctx->null_const_buf);
}
}
/* Clear the NULL constant buffer, because loads should return zeros. */
sctx->b.clear_buffer(&sctx->b.b, sctx->null_const_buf.buffer, 0,
sctx->null_const_buf.buffer->width0, 0,
R600_COHERENCY_SHADER);
}
/* XXX: This is the maximum value allowed. I'm not sure how to compute
* this for non-cs shaders. Using the wrong value here can result in
* GPU lockups, but the maximum value seems to always work.
*/
sctx->scratch_waves = 32 * sscreen->b.info.num_good_compute_units;
/* Initialize LLVM TargetMachine */
r600_target = radeon_llvm_get_r600_target(triple);
sctx->tm = LLVMCreateTargetMachine(r600_target, triple,
r600_get_llvm_processor_name(sscreen->b.family),
#if HAVE_LLVM >= 0x0308
sscreen->b.debug_flags & DBG_SI_SCHED ?
"+DumpCode,+vgpr-spilling,+si-scheduler" :
#endif
"+DumpCode,+vgpr-spilling",
LLVMCodeGenLevelDefault,
LLVMRelocDefault,
LLVMCodeModelDefault);
return &sctx->b.b;
fail:
fprintf(stderr, "radeonsi: Failed to create a context.\n");
si_destroy_context(&sctx->b.b);
return NULL;
}
static struct pipe_context *si_create_context(struct pipe_screen *screen,
void *priv, unsigned flags)
{
struct si_context *sctx = CALLOC_STRUCT(si_context);
struct si_screen* sscreen = (struct si_screen *)screen;
struct radeon_winsys *ws = sscreen->b.ws;
int shader, i;
if (!sctx)
return NULL;
if (sscreen->b.debug_flags & DBG_CHECK_VM)
flags |= PIPE_CONTEXT_DEBUG;
if (flags & PIPE_CONTEXT_DEBUG)
sscreen->record_llvm_ir = true; /* racy but not critical */
sctx->b.b.screen = screen; /* this must be set first */
sctx->b.b.priv = priv;
sctx->b.b.destroy = si_destroy_context;
sctx->b.b.emit_string_marker = si_emit_string_marker;
sctx->b.set_atom_dirty = (void *)si_set_atom_dirty;
sctx->screen = sscreen; /* Easy accessing of screen/winsys. */
sctx->is_debug = (flags & PIPE_CONTEXT_DEBUG) != 0;
if (!r600_common_context_init(&sctx->b, &sscreen->b))
goto fail;
if (sscreen->b.info.drm_major == 3)
sctx->b.b.get_device_reset_status = si_amdgpu_get_reset_status;
si_init_blit_functions(sctx);
si_init_compute_functions(sctx);
si_init_cp_dma_functions(sctx);
si_init_debug_functions(sctx);
if (sscreen->b.info.has_uvd) {
sctx->b.b.create_video_codec = si_uvd_create_decoder;
sctx->b.b.create_video_buffer = si_video_buffer_create;
} else {
sctx->b.b.create_video_codec = vl_create_decoder;
sctx->b.b.create_video_buffer = vl_video_buffer_create;
}
sctx->b.gfx.cs = ws->cs_create(sctx->b.ctx, RING_GFX,
si_context_gfx_flush, sctx);
if (!(sscreen->b.debug_flags & DBG_NO_CE) && ws->cs_add_const_ib) {
sctx->ce_ib = ws->cs_add_const_ib(sctx->b.gfx.cs);
if (!sctx->ce_ib)
goto fail;
if (ws->cs_add_const_preamble_ib) {
sctx->ce_preamble_ib =
ws->cs_add_const_preamble_ib(sctx->b.gfx.cs);
if (!sctx->ce_preamble_ib)
goto fail;
}
sctx->ce_suballocator =
u_suballocator_create(&sctx->b.b, 1024 * 1024,
PIPE_BIND_CUSTOM,
PIPE_USAGE_DEFAULT, false);
if (!sctx->ce_suballocator)
goto fail;
}
sctx->b.gfx.flush = si_context_gfx_flush;
/* Border colors. */
sctx->border_color_table = malloc(SI_MAX_BORDER_COLORS *
sizeof(*sctx->border_color_table));
if (!sctx->border_color_table)
goto fail;
sctx->border_color_buffer = (struct r600_resource*)
pipe_buffer_create(screen, PIPE_BIND_CUSTOM, PIPE_USAGE_DEFAULT,
SI_MAX_BORDER_COLORS *
sizeof(*sctx->border_color_table));
if (!sctx->border_color_buffer)
goto fail;
sctx->border_color_map =
ws->buffer_map(sctx->border_color_buffer->buf,
NULL, PIPE_TRANSFER_WRITE);
if (!sctx->border_color_map)
goto fail;
si_init_all_descriptors(sctx);
si_init_state_functions(sctx);
si_init_shader_functions(sctx);
if (sctx->b.chip_class >= CIK)
cik_init_sdma_functions(sctx);
else
si_init_dma_functions(sctx);
if (sscreen->b.debug_flags & DBG_FORCE_DMA)
sctx->b.b.resource_copy_region = sctx->b.dma_copy;
sctx->blitter = util_blitter_create(&sctx->b.b);
if (sctx->blitter == NULL)
goto fail;
sctx->blitter->draw_rectangle = r600_draw_rectangle;
sctx->sample_mask.sample_mask = 0xffff;
/* these must be last */
si_begin_new_cs(sctx);
r600_query_init_backend_mask(&sctx->b); /* this emits commands and must be last */
/* CIK cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
* with a NULL buffer). We need to use a dummy buffer instead. */
if (sctx->b.chip_class == CIK) {
sctx->null_const_buf.buffer = pipe_buffer_create(screen, PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_DEFAULT, 16);
if (!sctx->null_const_buf.buffer)
goto fail;
sctx->null_const_buf.buffer_size = sctx->null_const_buf.buffer->width0;
for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
for (i = 0; i < SI_NUM_CONST_BUFFERS; i++) {
sctx->b.b.set_constant_buffer(&sctx->b.b, shader, i,
&sctx->null_const_buf);
}
}
/* Clear the NULL constant buffer, because loads should return zeros. */
sctx->b.clear_buffer(&sctx->b.b, sctx->null_const_buf.buffer, 0,
sctx->null_const_buf.buffer->width0, 0,
R600_COHERENCY_SHADER);
}
uint64_t max_threads_per_block;
screen->get_compute_param(screen, PIPE_SHADER_IR_TGSI,
PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK,
&max_threads_per_block);
/* The maximum number of scratch waves. Scratch space isn't divided
* evenly between CUs. The number is only a function of the number of CUs.
* We can decrease the constant to decrease the scratch buffer size.
*
* sctx->scratch_waves must be >= the maximum posible size of
* 1 threadgroup, so that the hw doesn't hang from being unable
* to start any.
*
* The recommended value is 4 per CU at most. Higher numbers don't
* bring much benefit, but they still occupy chip resources (think
* async compute). I've seen ~2% performance difference between 4 and 32.
*/
sctx->scratch_waves = MAX2(32 * sscreen->b.info.num_good_compute_units,
max_threads_per_block / 64);
sctx->tm = si_create_llvm_target_machine(sscreen);
return &sctx->b.b;
fail:
fprintf(stderr, "radeonsi: Failed to create a context.\n");
si_destroy_context(&sctx->b.b);
return NULL;
}
static struct pipe_context *r600_create_context(struct pipe_screen *screen, void *priv)
{
struct r600_context *rctx = CALLOC_STRUCT(r600_context);
struct r600_screen* rscreen = (struct r600_screen *)screen;
int shader, i;
if (rctx == NULL)
return NULL;
if (!r600_common_context_init(&rctx->b, &rscreen->b))
goto fail;
rctx->b.b.screen = screen;
rctx->b.b.priv = priv;
rctx->b.b.destroy = r600_destroy_context;
rctx->b.b.flush = r600_flush_from_st;
/* Easy accessing of screen/winsys. */
rctx->screen = rscreen;
si_init_blit_functions(rctx);
r600_init_query_functions(rctx);
r600_init_context_resource_functions(rctx);
si_init_compute_functions(rctx);
if (rscreen->b.info.has_uvd) {
rctx->b.b.create_video_codec = radeonsi_uvd_create_decoder;
rctx->b.b.create_video_buffer = radeonsi_video_buffer_create;
} else {
rctx->b.b.create_video_codec = vl_create_decoder;
rctx->b.b.create_video_buffer = vl_video_buffer_create;
}
rctx->b.rings.gfx.cs = rctx->b.ws->cs_create(rctx->b.ws, RING_GFX, NULL);
rctx->b.rings.gfx.flush = r600_flush_from_winsys;
si_init_all_descriptors(rctx);
/* Initialize cache_flush. */
rctx->cache_flush = si_atom_cache_flush;
rctx->atoms.cache_flush = &rctx->cache_flush;
rctx->atoms.streamout_begin = &rctx->b.streamout.begin_atom;
switch (rctx->b.chip_class) {
case SI:
case CIK:
si_init_state_functions(rctx);
LIST_INITHEAD(&rctx->active_nontimer_query_list);
rctx->max_db = 8;
si_init_config(rctx);
break;
default:
R600_ERR("Unsupported chip class %d.\n", rctx->b.chip_class);
goto fail;
}
rctx->b.ws->cs_set_flush_callback(rctx->b.rings.gfx.cs, r600_flush_from_winsys, rctx);
util_slab_create(&rctx->pool_transfers,
sizeof(struct pipe_transfer), 64,
UTIL_SLAB_SINGLETHREADED);
rctx->uploader = u_upload_create(&rctx->b.b, 1024 * 1024, 256,
PIPE_BIND_INDEX_BUFFER |
PIPE_BIND_CONSTANT_BUFFER);
if (!rctx->uploader)
goto fail;
rctx->blitter = util_blitter_create(&rctx->b.b);
if (rctx->blitter == NULL)
goto fail;
rctx->dummy_pixel_shader =
util_make_fragment_cloneinput_shader(&rctx->b.b, 0,
TGSI_SEMANTIC_GENERIC,
TGSI_INTERPOLATE_CONSTANT);
rctx->b.b.bind_fs_state(&rctx->b.b, rctx->dummy_pixel_shader);
/* these must be last */
si_begin_new_cs(rctx);
si_get_backend_mask(rctx);
/* CIK cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
* with a NULL buffer). We need to use a dummy buffer instead. */
if (rctx->b.chip_class == CIK) {
rctx->null_const_buf.buffer = pipe_buffer_create(screen, PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_STATIC, 16);
rctx->null_const_buf.buffer_size = rctx->null_const_buf.buffer->width0;
for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
for (i = 0; i < NUM_CONST_BUFFERS; i++) {
rctx->b.b.set_constant_buffer(&rctx->b.b, shader, i,
&rctx->null_const_buf);
}
}
/* Clear the NULL constant buffer, because loads should return zeros. */
rctx->b.clear_buffer(&rctx->b.b, rctx->null_const_buf.buffer, 0,
rctx->null_const_buf.buffer->width0, 0);
}
return &rctx->b.b;
fail:
r600_destroy_context(&rctx->b.b);
return NULL;
}
static struct pipe_context *si_create_context(struct pipe_screen *screen, void *priv)
{
struct si_context *sctx = CALLOC_STRUCT(si_context);
struct si_screen* sscreen = (struct si_screen *)screen;
struct radeon_winsys *ws = sscreen->b.ws;
LLVMTargetRef r600_target;
#if HAVE_LLVM >= 0x0306
const char *triple = "amdgcn--";
#endif
int shader, i;
if (sctx == NULL)
return NULL;
sctx->b.b.screen = screen; /* this must be set first */
sctx->b.b.priv = priv;
sctx->b.b.destroy = si_destroy_context;
sctx->b.set_atom_dirty = (void *)si_set_atom_dirty;
sctx->screen = sscreen; /* Easy accessing of screen/winsys. */
if (!r600_common_context_init(&sctx->b, &sscreen->b))
goto fail;
if (sscreen->b.info.drm_major == 3)
sctx->b.b.get_device_reset_status = si_amdgpu_get_reset_status;
si_init_blit_functions(sctx);
si_init_compute_functions(sctx);
si_init_cp_dma_functions(sctx);
if (sscreen->b.info.has_uvd) {
sctx->b.b.create_video_codec = si_uvd_create_decoder;
sctx->b.b.create_video_buffer = si_video_buffer_create;
} else {
sctx->b.b.create_video_codec = vl_create_decoder;
sctx->b.b.create_video_buffer = vl_video_buffer_create;
}
sctx->b.rings.gfx.cs = ws->cs_create(sctx->b.ctx, RING_GFX, si_context_gfx_flush,
sctx, sscreen->b.trace_bo ?
sscreen->b.trace_bo->cs_buf : NULL);
sctx->b.rings.gfx.flush = si_context_gfx_flush;
si_init_all_descriptors(sctx);
/* Initialize cache_flush. */
sctx->cache_flush = si_atom_cache_flush;
sctx->atoms.s.cache_flush = &sctx->cache_flush;
sctx->msaa_sample_locs = si_atom_msaa_sample_locs;
sctx->atoms.s.msaa_sample_locs = &sctx->msaa_sample_locs;
sctx->msaa_config = si_atom_msaa_config;
sctx->atoms.s.msaa_config = &sctx->msaa_config;
sctx->atoms.s.streamout_begin = &sctx->b.streamout.begin_atom;
sctx->atoms.s.streamout_enable = &sctx->b.streamout.enable_atom;
si_init_state_functions(sctx);
si_init_shader_functions(sctx);
if (sscreen->b.debug_flags & DBG_FORCE_DMA)
sctx->b.b.resource_copy_region = sctx->b.dma_copy;
sctx->blitter = util_blitter_create(&sctx->b.b);
if (sctx->blitter == NULL)
goto fail;
sctx->blitter->draw_rectangle = r600_draw_rectangle;
/* these must be last */
si_begin_new_cs(sctx);
r600_query_init_backend_mask(&sctx->b); /* this emits commands and must be last */
/* CIK cannot unbind a constant buffer (S_BUFFER_LOAD is buggy
* with a NULL buffer). We need to use a dummy buffer instead. */
if (sctx->b.chip_class == CIK) {
sctx->null_const_buf.buffer = pipe_buffer_create(screen, PIPE_BIND_CONSTANT_BUFFER,
PIPE_USAGE_DEFAULT, 16);
if (!sctx->null_const_buf.buffer)
goto fail;
sctx->null_const_buf.buffer_size = sctx->null_const_buf.buffer->width0;
for (shader = 0; shader < SI_NUM_SHADERS; shader++) {
for (i = 0; i < SI_NUM_CONST_BUFFERS; i++) {
sctx->b.b.set_constant_buffer(&sctx->b.b, shader, i,
&sctx->null_const_buf);
}
}
/* Clear the NULL constant buffer, because loads should return zeros. */
sctx->b.clear_buffer(&sctx->b.b, sctx->null_const_buf.buffer, 0,
sctx->null_const_buf.buffer->width0, 0, false);
}
/* XXX: This is the maximum value allowed. I'm not sure how to compute
* this for non-cs shaders. Using the wrong value here can result in
* GPU lockups, but the maximum value seems to always work.
*/
sctx->scratch_waves = 32 * sscreen->b.info.max_compute_units;
#if HAVE_LLVM >= 0x0306
/* Initialize LLVM TargetMachine */
r600_target = radeon_llvm_get_r600_target(triple);
sctx->tm = LLVMCreateTargetMachine(r600_target, triple,
r600_get_llvm_processor_name(sscreen->b.family),
"+DumpCode,+vgpr-spilling",
LLVMCodeGenLevelDefault,
LLVMRelocDefault,
LLVMCodeModelDefault);
#endif
return &sctx->b.b;
fail:
si_destroy_context(&sctx->b.b);
return NULL;
}
