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mesa/src/gallium/drivers/panfrost/pan_context.c

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/*
* Copyright (C) 2019-2020 Collabora, Ltd.
* © Copyright 2018 Alyssa Rosenzweig
* Copyright © 2014-2017 Broadcom
* Copyright (C) 2017 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/poll.h>
#include <errno.h>
#include "pan_bo.h"
#include "pan_context.h"
#include "pan_minmax_cache.h"
#include "util/macros.h"
#include "util/format/u_format.h"
#include "util/u_inlines.h"
#include "util/u_upload_mgr.h"
#include "util/u_memory.h"
#include "util/u_vbuf.h"
#include "util/half_float.h"
#include "util/u_helpers.h"
#include "util/format/u_format.h"
#include "util/u_prim.h"
#include "util/u_prim_restart.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_from_mesa.h"
#include "nir/tgsi_to_nir.h"
#include "util/u_math.h"
#include "pan_screen.h"
#include "pan_util.h"
#include "decode.h"
#include "util/pan_lower_framebuffer.h"
static void
panfrost_clear(
struct pipe_context *pipe,
unsigned buffers,
const struct pipe_scissor_state *scissor_state,
const union pipe_color_union *color,
double depth, unsigned stencil)
{
struct panfrost_context *ctx = pan_context(pipe);
if (!panfrost_render_condition_check(ctx))
return;
/* TODO: panfrost_get_fresh_batch_for_fbo() instantiates a new batch if
* the existing batch targeting this FBO has draws. We could probably
* avoid that by replacing plain clears by quad-draws with a specific
* color/depth/stencil value, thus avoiding the generation of extra
* fragment jobs.
*/
struct panfrost_batch *batch = panfrost_get_fresh_batch_for_fbo(ctx, "Slow clear");
panfrost_batch_clear(batch, buffers, color, depth, stencil);
}
bool
panfrost_writes_point_size(struct panfrost_context *ctx)
{
assert(ctx->shader[PIPE_SHADER_VERTEX]);
struct panfrost_shader_state *vs = panfrost_get_shader_state(ctx, PIPE_SHADER_VERTEX);
return vs->info.vs.writes_point_size && ctx->active_prim == PIPE_PRIM_POINTS;
}
/* The entire frame is in memory -- send it off to the kernel! */
void
panfrost_flush(
struct pipe_context *pipe,
struct pipe_fence_handle **fence,
unsigned flags)
{
struct panfrost_context *ctx = pan_context(pipe);
struct panfrost_device *dev = pan_device(pipe->screen);
/* Submit all pending jobs */
panfrost_flush_all_batches(ctx, NULL);
if (fence) {
struct pipe_fence_handle *f = panfrost_fence_create(ctx);
pipe->screen->fence_reference(pipe->screen, fence, NULL);
*fence = f;
}
if (dev->debug & PAN_DBG_TRACE)
pandecode_next_frame();
}
static void
panfrost_texture_barrier(struct pipe_context *pipe, unsigned flags)
{
struct panfrost_context *ctx = pan_context(pipe);
panfrost_flush_all_batches(ctx, "Texture barrier");
}
static void
panfrost_set_frontend_noop(struct pipe_context *pipe, bool enable)
{
struct panfrost_context *ctx = pan_context(pipe);
panfrost_flush_all_batches(ctx, "Frontend no-op change");
ctx->is_noop = enable;
}
static void
panfrost_generic_cso_delete(struct pipe_context *pctx, void *hwcso)
{
free(hwcso);
}
static void
panfrost_bind_blend_state(struct pipe_context *pipe, void *cso)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->blend = cso;
ctx->dirty |= PAN_DIRTY_BLEND;
}
static void
panfrost_set_blend_color(struct pipe_context *pipe,
const struct pipe_blend_color *blend_color)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->dirty |= PAN_DIRTY_BLEND;
if (blend_color)
ctx->blend_color = *blend_color;
}
/* Create a final blend given the context */
mali_ptr
panfrost_get_blend(struct panfrost_batch *batch, unsigned rti, struct panfrost_bo **bo, unsigned *shader_offset)
{
struct panfrost_context *ctx = batch->ctx;
struct panfrost_device *dev = pan_device(ctx->base.screen);
struct panfrost_blend_state *blend = ctx->blend;
struct pan_blend_info info = blend->info[rti];
struct pipe_surface *surf = batch->key.cbufs[rti];
enum pipe_format fmt = surf->format;
/* Use fixed-function if the equation permits, the format is blendable,
* and no more than one unique constant is accessed */
if (info.fixed_function && panfrost_blendable_formats_v7[fmt].internal &&
pan_blend_is_homogenous_constant(info.constant_mask,
ctx->blend_color.color)) {
return 0;
}
/* Otherwise, we need to grab a shader */
struct pan_blend_state pan_blend = blend->pan;
unsigned nr_samples = surf->nr_samples ? : surf->texture->nr_samples;
pan_blend.rts[rti].format = fmt;
pan_blend.rts[rti].nr_samples = nr_samples;
memcpy(pan_blend.constants, ctx->blend_color.color,
sizeof(pan_blend.constants));
/* Upload the shader, sharing a BO */
if (!(*bo)) {
*bo = panfrost_batch_create_bo(batch, 4096, PAN_BO_EXECUTE,
PIPE_SHADER_FRAGMENT, "Blend shader");
}
struct panfrost_shader_state *ss = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT);
/* Default for Midgard */
nir_alu_type col0_type = nir_type_float32;
nir_alu_type col1_type = nir_type_float32;
/* Bifrost has per-output types, respect them */
if (dev->arch >= 6) {
col0_type = ss->info.bifrost.blend[rti].type;
col1_type = ss->info.bifrost.blend_src1_type;
}
pthread_mutex_lock(&dev->blend_shaders.lock);
struct pan_blend_shader_variant *shader =
pan_screen(ctx->base.screen)->vtbl.get_blend_shader(dev,
&pan_blend,
col0_type,
col1_type,
rti);
/* Size check and upload */
unsigned offset = *shader_offset;
assert((offset + shader->binary.size) < 4096);
memcpy((*bo)->ptr.cpu + offset, shader->binary.data, shader->binary.size);
*shader_offset += shader->binary.size;
pthread_mutex_unlock(&dev->blend_shaders.lock);
return ((*bo)->ptr.gpu + offset) | shader->first_tag;
}
static void
panfrost_bind_rasterizer_state(
struct pipe_context *pctx,
void *hwcso)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->rasterizer = hwcso;
/* We can assume rasterizer is always dirty, the dependencies are
* too intricate to bother tracking in detail. However we could
* probably diff the renderers for viewport dirty tracking, that
* just cares about the scissor enable and the depth clips. */
ctx->dirty |= PAN_DIRTY_SCISSOR | PAN_DIRTY_RASTERIZER;
}
static void
panfrost_set_shader_images(
struct pipe_context *pctx,
enum pipe_shader_type shader,
unsigned start_slot, unsigned count, unsigned unbind_num_trailing_slots,
const struct pipe_image_view *iviews)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->dirty_shader[PIPE_SHADER_FRAGMENT] |= PAN_DIRTY_STAGE_IMAGE;
/* Unbind start_slot...start_slot+count */
if (!iviews) {
for (int i = start_slot; i < start_slot + count + unbind_num_trailing_slots; i++) {
pipe_resource_reference(&ctx->images[shader][i].resource, NULL);
}
ctx->image_mask[shader] &= ~(((1ull << count) - 1) << start_slot);
return;
}
/* Bind start_slot...start_slot+count */
for (int i = 0; i < count; i++) {
const struct pipe_image_view *image = &iviews[i];
SET_BIT(ctx->image_mask[shader], 1 << (start_slot + i), image->resource);
if (!image->resource) {
util_copy_image_view(&ctx->images[shader][start_slot+i], NULL);
continue;
}
struct panfrost_resource *rsrc = pan_resource(image->resource);
/* Images don't work with AFBC, since they require pixel-level granularity */
if (drm_is_afbc(rsrc->image.layout.modifier)) {
pan_resource_modifier_convert(ctx, rsrc,
DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED,
"Shader image");
}
util_copy_image_view(&ctx->images[shader][start_slot+i], image);
}
/* Unbind start_slot+count...start_slot+count+unbind_num_trailing_slots */
for (int i = 0; i < unbind_num_trailing_slots; i++) {
SET_BIT(ctx->image_mask[shader], 1 << (start_slot + count + i), NULL);
util_copy_image_view(&ctx->images[shader][start_slot+count+i], NULL);
}
}
static void
panfrost_bind_vertex_elements_state(
struct pipe_context *pctx,
void *hwcso)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->vertex = hwcso;
ctx->dirty |= PAN_DIRTY_VERTEX;
}
static void *
panfrost_create_shader_state(
struct pipe_context *pctx,
const struct pipe_shader_state *cso)
{
struct panfrost_shader_variants *so = CALLOC_STRUCT(panfrost_shader_variants);
struct panfrost_device *dev = pan_device(pctx->screen);
simple_mtx_init(&so->lock, mtx_plain);
so->stream_output = cso->stream_output;
if (cso->type == PIPE_SHADER_IR_TGSI)
so->nir = tgsi_to_nir(cso->tokens, pctx->screen, false);
else
so->nir = cso->ir.nir;
/* Fix linkage early */
if (so->nir->info.stage == MESA_SHADER_VERTEX) {
so->fixed_varying_mask =
(so->nir->info.outputs_written & BITFIELD_MASK(VARYING_SLOT_VAR0)) &
~VARYING_BIT_POS & ~VARYING_BIT_PSIZ;
}
/* Precompile for shader-db if we need to */
if (unlikely(dev->debug & PAN_DBG_PRECOMPILE)) {
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_shader_state state = { 0 };
panfrost_shader_compile(pctx->screen,
&ctx->shaders, &ctx->descs,
so->nir, &state);
}
return so;
}
static void
panfrost_delete_shader_state(
struct pipe_context *pctx,
void *so)
{
struct panfrost_shader_variants *cso = (struct panfrost_shader_variants *) so;
ralloc_free(cso->nir);
for (unsigned i = 0; i < cso->variant_count; ++i) {
struct panfrost_shader_state *shader_state = &cso->variants[i];
panfrost_bo_unreference(shader_state->bin.bo);
panfrost_bo_unreference(shader_state->state.bo);
panfrost_bo_unreference(shader_state->linkage.bo);
if (shader_state->xfb) {
panfrost_bo_unreference(shader_state->xfb->bin.bo);
panfrost_bo_unreference(shader_state->xfb->state.bo);
panfrost_bo_unreference(shader_state->xfb->linkage.bo);
free(shader_state->xfb);
}
}
simple_mtx_destroy(&cso->lock);
free(cso->variants);
free(so);
}
static void
panfrost_bind_sampler_states(
struct pipe_context *pctx,
enum pipe_shader_type shader,
unsigned start_slot, unsigned num_sampler,
void **sampler)
{
assert(start_slot == 0);
struct panfrost_context *ctx = pan_context(pctx);
ctx->dirty_shader[shader] |= PAN_DIRTY_STAGE_SAMPLER;
ctx->sampler_count[shader] = sampler ? num_sampler : 0;
if (sampler)
memcpy(ctx->samplers[shader], sampler, num_sampler * sizeof (void *));
}
static void
panfrost_build_key(struct panfrost_context *ctx,
struct panfrost_shader_key *key,
nir_shader *nir)
{
/* We don't currently have vertex shader variants */
if (nir->info.stage != MESA_SHADER_FRAGMENT)
return;
struct panfrost_device *dev = pan_device(ctx->base.screen);
struct pipe_framebuffer_state *fb = &ctx->pipe_framebuffer;
struct pipe_rasterizer_state *rast = (void *) ctx->rasterizer;
struct panfrost_shader_variants *vs = ctx->shader[MESA_SHADER_VERTEX];
key->fs.nr_cbufs = fb->nr_cbufs;
/* Point sprite lowering needed on Bifrost and newer */
if (dev->arch >= 6 && rast && ctx->active_prim == PIPE_PRIM_POINTS) {
key->fs.sprite_coord_enable = rast->sprite_coord_enable;
}
/* User clip plane lowering needed everywhere */
if (rast) {
key->fs.clip_plane_enable = rast->clip_plane_enable;
}
if (dev->arch <= 5) {
u_foreach_bit(i, (nir->info.outputs_read >> FRAG_RESULT_DATA0)) {
enum pipe_format fmt = PIPE_FORMAT_R8G8B8A8_UNORM;
if ((fb->nr_cbufs > i) && fb->cbufs[i])
fmt = fb->cbufs[i]->format;
if (panfrost_blendable_formats_v6[fmt].internal)
fmt = PIPE_FORMAT_NONE;
key->fs.rt_formats[i] = fmt;
}
}
/* Funny desktop GL varying lowering on Valhall */
if (dev->arch >= 9) {
assert(vs != NULL && "too early");
key->fixed_varying_mask = vs->fixed_varying_mask;
}
}
/**
* Fix an uncompiled shader's stream output info, and produce a bitmask
* of which VARYING_SLOT_* are captured for stream output.
*
* Core Gallium stores output->register_index as a "slot" number, where
* slots are assigned consecutively to all outputs in info->outputs_written.
* This naive packing of outputs doesn't work for us - we too have slots,
* but the layout is defined by the VUE map, which we won't have until we
* compile a specific shader variant. So, we remap these and simply store
* VARYING_SLOT_* in our copy's output->register_index fields.
*
* We then produce a bitmask of outputs which are used for SO.
*
* Implementation from iris.
*/
static uint64_t
update_so_info(struct pipe_stream_output_info *so_info,
uint64_t outputs_written)
{
uint64_t so_outputs = 0;
uint8_t reverse_map[64] = {0};
unsigned slot = 0;
while (outputs_written)
reverse_map[slot++] = u_bit_scan64(&outputs_written);
for (unsigned i = 0; i < so_info->num_outputs; i++) {
struct pipe_stream_output *output = &so_info->output[i];
/* Map Gallium's condensed "slots" back to real VARYING_SLOT_* enums */
output->register_index = reverse_map[output->register_index];
so_outputs |= 1ull << output->register_index;
}
return so_outputs;
}
static unsigned
panfrost_new_variant_locked(
struct panfrost_context *ctx,
struct panfrost_shader_variants *variants,
struct panfrost_shader_key *key)
{
unsigned variant = variants->variant_count++;
if (variants->variant_count > variants->variant_space) {
unsigned old_space = variants->variant_space;
variants->variant_space *= 2;
if (variants->variant_space == 0)
variants->variant_space = 1;
/* Arbitrary limit to stop runaway programs from
* creating an unbounded number of shader variants. */
assert(variants->variant_space < 1024);
unsigned msize = sizeof(struct panfrost_shader_state);
variants->variants = realloc(variants->variants,
variants->variant_space * msize);
memset(&variants->variants[old_space], 0,
(variants->variant_space - old_space) * msize);
}
variants->variants[variant].key = *key;
struct panfrost_shader_state *shader_state = &variants->variants[variant];
/* We finally have a variant, so compile it */
panfrost_shader_compile(ctx->base.screen,
&ctx->shaders, &ctx->descs,
variants->nir, shader_state);
/* Fixup the stream out information */
shader_state->stream_output = variants->stream_output;
shader_state->so_mask =
update_so_info(&shader_state->stream_output,
shader_state->info.outputs_written);
return variant;
}
static void
panfrost_bind_shader_state(
struct pipe_context *pctx,
void *hwcso,
enum pipe_shader_type type)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->shader[type] = hwcso;
ctx->dirty |= PAN_DIRTY_TLS_SIZE;
ctx->dirty_shader[type] |= PAN_DIRTY_STAGE_SHADER;
if (hwcso)
panfrost_update_shader_variant(ctx, type);
}
void
panfrost_update_shader_variant(struct panfrost_context *ctx,
enum pipe_shader_type type)
{
/* No shader variants for compute */
if (type == PIPE_SHADER_COMPUTE)
return;
/* We need linking information, defer this */
if (type == PIPE_SHADER_FRAGMENT && !ctx->shader[PIPE_SHADER_VERTEX])
return;
/* Also defer, happens with GALLIUM_HUD */
if (!ctx->shader[type])
return;
/* Match the appropriate variant */
signed variant = -1;
struct panfrost_shader_variants *variants = ctx->shader[type];
simple_mtx_lock(&variants->lock);
struct panfrost_shader_key key = {
.fixed_varying_mask = variants->fixed_varying_mask
};
panfrost_build_key(ctx, &key, variants->nir);
for (unsigned i = 0; i < variants->variant_count; ++i) {
if (memcmp(&key, &variants->variants[i].key, sizeof(key)) == 0) {
variant = i;
break;
}
}
if (variant == -1)
variant = panfrost_new_variant_locked(ctx, variants, &key);
variants->active_variant = variant;
/* TODO: it would be more efficient to release the lock before
* compiling instead of after, but that can race if thread A compiles a
* variant while thread B searches for that same variant */
simple_mtx_unlock(&variants->lock);
}
static void
panfrost_bind_vs_state(struct pipe_context *pctx, void *hwcso)
{
panfrost_bind_shader_state(pctx, hwcso, PIPE_SHADER_VERTEX);
/* Fragment shaders are linked with vertex shaders */
struct panfrost_context *ctx = pan_context(pctx);
panfrost_update_shader_variant(ctx, PIPE_SHADER_FRAGMENT);
}
static void
panfrost_bind_fs_state(struct pipe_context *pctx, void *hwcso)
{
panfrost_bind_shader_state(pctx, hwcso, PIPE_SHADER_FRAGMENT);
}
static void
panfrost_set_vertex_buffers(
struct pipe_context *pctx,
unsigned start_slot,
unsigned num_buffers,
unsigned unbind_num_trailing_slots,
bool take_ownership,
const struct pipe_vertex_buffer *buffers)
{
struct panfrost_context *ctx = pan_context(pctx);
util_set_vertex_buffers_mask(ctx->vertex_buffers, &ctx->vb_mask, buffers,
start_slot, num_buffers, unbind_num_trailing_slots,
take_ownership);
ctx->dirty |= PAN_DIRTY_VERTEX;
}
static void
panfrost_set_constant_buffer(
struct pipe_context *pctx,
enum pipe_shader_type shader, uint index, bool take_ownership,
const struct pipe_constant_buffer *buf)
{
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_constant_buffer *pbuf = &ctx->constant_buffer[shader];
util_copy_constant_buffer(&pbuf->cb[index], buf, take_ownership);
unsigned mask = (1 << index);
if (unlikely(!buf)) {
pbuf->enabled_mask &= ~mask;
return;
}
pbuf->enabled_mask |= mask;
ctx->dirty_shader[shader] |= PAN_DIRTY_STAGE_CONST;
}
static void
panfrost_set_stencil_ref(
struct pipe_context *pctx,
const struct pipe_stencil_ref ref)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->stencil_ref = ref;
ctx->dirty |= PAN_DIRTY_ZS;
}
static void
panfrost_set_sampler_views(
struct pipe_context *pctx,
enum pipe_shader_type shader,
unsigned start_slot, unsigned num_views,
unsigned unbind_num_trailing_slots,
bool take_ownership,
struct pipe_sampler_view **views)
{
struct panfrost_context *ctx = pan_context(pctx);
ctx->dirty_shader[shader] |= PAN_DIRTY_STAGE_TEXTURE;
unsigned new_nr = 0;
unsigned i;
for (i = 0; i < num_views; ++i) {
struct pipe_sampler_view *view = views ? views[i] : NULL;
unsigned p = i + start_slot;
if (view)
new_nr = p + 1;
if (take_ownership) {
pipe_sampler_view_reference((struct pipe_sampler_view **)&ctx->sampler_views[shader][p],
NULL);
ctx->sampler_views[shader][i] = (struct panfrost_sampler_view *)view;
} else {
pipe_sampler_view_reference((struct pipe_sampler_view **)&ctx->sampler_views[shader][p],
view);
}
}
for (; i < num_views + unbind_num_trailing_slots; i++) {
unsigned p = i + start_slot;
pipe_sampler_view_reference((struct pipe_sampler_view **)&ctx->sampler_views[shader][p],
NULL);
}
/* If the sampler view count is higher than the greatest sampler view
* we touch, it can't change */
if (ctx->sampler_view_count[shader] > start_slot + num_views + unbind_num_trailing_slots)
return;
/* If we haven't set any sampler views here, search lower numbers for
* set sampler views */
if (new_nr == 0) {
for (i = 0; i < start_slot; ++i) {
if (ctx->sampler_views[shader][i])
new_nr = i + 1;
}
}
ctx->sampler_view_count[shader] = new_nr;
}
static void
panfrost_set_shader_buffers(
struct pipe_context *pctx,
enum pipe_shader_type shader,
unsigned start, unsigned count,
const struct pipe_shader_buffer *buffers,
unsigned writable_bitmask)
{
struct panfrost_context *ctx = pan_context(pctx);
util_set_shader_buffers_mask(ctx->ssbo[shader], &ctx->ssbo_mask[shader],
buffers, start, count);
ctx->dirty_shader[shader] |= PAN_DIRTY_STAGE_SSBO;
}
static void
panfrost_set_framebuffer_state(struct pipe_context *pctx,
const struct pipe_framebuffer_state *fb)
{
struct panfrost_context *ctx = pan_context(pctx);
util_copy_framebuffer_state(&ctx->pipe_framebuffer, fb);
ctx->batch = NULL;
/* Hot draw call path needs the mask of active render targets */
ctx->fb_rt_mask = 0;
for (unsigned i = 0; i < ctx->pipe_framebuffer.nr_cbufs; ++i) {
if (ctx->pipe_framebuffer.cbufs[i])
ctx->fb_rt_mask |= BITFIELD_BIT(i);
}
}
static void
panfrost_bind_depth_stencil_state(struct pipe_context *pipe,
void *cso)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->depth_stencil = cso;
ctx->dirty |= PAN_DIRTY_ZS;
}
static void
panfrost_set_sample_mask(struct pipe_context *pipe,
unsigned sample_mask)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->sample_mask = sample_mask;
ctx->dirty |= PAN_DIRTY_MSAA;
}
static void
panfrost_set_min_samples(struct pipe_context *pipe,
unsigned min_samples)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->min_samples = min_samples;
ctx->dirty |= PAN_DIRTY_MSAA;
}
static void
panfrost_set_clip_state(struct pipe_context *pipe,
const struct pipe_clip_state *clip)
{
//struct panfrost_context *panfrost = pan_context(pipe);
}
static void
panfrost_set_viewport_states(struct pipe_context *pipe,
unsigned start_slot,
unsigned num_viewports,
const struct pipe_viewport_state *viewports)
{
struct panfrost_context *ctx = pan_context(pipe);
assert(start_slot == 0);
assert(num_viewports == 1);
ctx->pipe_viewport = *viewports;
ctx->dirty |= PAN_DIRTY_VIEWPORT;
}
static void
panfrost_set_scissor_states(struct pipe_context *pipe,
unsigned start_slot,
unsigned num_scissors,
const struct pipe_scissor_state *scissors)
{
struct panfrost_context *ctx = pan_context(pipe);
assert(start_slot == 0);
assert(num_scissors == 1);
ctx->scissor = *scissors;
ctx->dirty |= PAN_DIRTY_SCISSOR;
}
static void
panfrost_set_polygon_stipple(struct pipe_context *pipe,
const struct pipe_poly_stipple *stipple)
{
//struct panfrost_context *panfrost = pan_context(pipe);
}
static void
panfrost_set_active_query_state(struct pipe_context *pipe,
bool enable)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->active_queries = enable;
ctx->dirty |= PAN_DIRTY_OQ;
}
static void
panfrost_render_condition(struct pipe_context *pipe,
struct pipe_query *query,
bool condition,
enum pipe_render_cond_flag mode)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->cond_query = (struct panfrost_query *)query;
ctx->cond_cond = condition;
ctx->cond_mode = mode;
}
static void
panfrost_destroy(struct pipe_context *pipe)
{
struct panfrost_context *panfrost = pan_context(pipe);
_mesa_hash_table_destroy(panfrost->writers, NULL);
if (panfrost->blitter)
util_blitter_destroy(panfrost->blitter);
util_unreference_framebuffer_state(&panfrost->pipe_framebuffer);
u_upload_destroy(pipe->stream_uploader);
panfrost_pool_cleanup(&panfrost->descs);
panfrost_pool_cleanup(&panfrost->shaders);
ralloc_free(pipe);
}
static struct pipe_query *
panfrost_create_query(struct pipe_context *pipe,
unsigned type,
unsigned index)
{
struct panfrost_query *q = rzalloc(pipe, struct panfrost_query);
q->type = type;
q->index = index;
return (struct pipe_query *) q;
}
static void
panfrost_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
{
struct panfrost_query *query = (struct panfrost_query *) q;
if (query->rsrc)
pipe_resource_reference(&query->rsrc, NULL);
ralloc_free(q);
}
static bool
panfrost_begin_query(struct pipe_context *pipe, struct pipe_query *q)
{
struct panfrost_context *ctx = pan_context(pipe);
struct panfrost_device *dev = pan_device(ctx->base.screen);
struct panfrost_query *query = (struct panfrost_query *) q;
switch (query->type) {
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE: {
unsigned size = sizeof(uint64_t) * dev->core_id_range;
/* Allocate a resource for the query results to be stored */
if (!query->rsrc) {
query->rsrc = pipe_buffer_create(ctx->base.screen,
PIPE_BIND_QUERY_BUFFER, 0, size);
}
/* Default to 0 if nothing at all drawn. */
uint8_t *zeroes = alloca(size);
memset(zeroes, 0, size);
pipe_buffer_write(pipe, query->rsrc, 0, size, zeroes);
query->msaa = (ctx->pipe_framebuffer.samples > 1);
ctx->occlusion_query = query;
ctx->dirty |= PAN_DIRTY_OQ;
break;
}
/* Geometry statistics are computed in the driver. XXX: geom/tess
* shaders.. */
case PIPE_QUERY_PRIMITIVES_GENERATED:
query->start = ctx->prims_generated;
break;
case PIPE_QUERY_PRIMITIVES_EMITTED:
query->start = ctx->tf_prims_generated;
break;
default:
/* TODO: timestamp queries, etc? */
break;
}
return true;
}
static bool
panfrost_end_query(struct pipe_context *pipe, struct pipe_query *q)
{
struct panfrost_context *ctx = pan_context(pipe);
struct panfrost_query *query = (struct panfrost_query *) q;
switch (query->type) {
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
ctx->occlusion_query = NULL;
ctx->dirty |= PAN_DIRTY_OQ;
break;
case PIPE_QUERY_PRIMITIVES_GENERATED:
query->end = ctx->prims_generated;
break;
case PIPE_QUERY_PRIMITIVES_EMITTED:
query->end = ctx->tf_prims_generated;
break;
}
return true;
}
static bool
panfrost_get_query_result(struct pipe_context *pipe,
struct pipe_query *q,
bool wait,
union pipe_query_result *vresult)
{
struct panfrost_query *query = (struct panfrost_query *) q;
struct panfrost_context *ctx = pan_context(pipe);
struct panfrost_device *dev = pan_device(ctx->base.screen);
struct panfrost_resource *rsrc = pan_resource(query->rsrc);
switch (query->type) {
case PIPE_QUERY_OCCLUSION_COUNTER:
case PIPE_QUERY_OCCLUSION_PREDICATE:
case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
panfrost_flush_writer(ctx, rsrc, "Occlusion query");
panfrost_bo_wait(rsrc->image.data.bo, INT64_MAX, false);
/* Read back the query results */
uint64_t *result = (uint64_t *) rsrc->image.data.bo->ptr.cpu;
if (query->type == PIPE_QUERY_OCCLUSION_COUNTER) {
uint64_t passed = 0;
for (int i = 0; i < dev->core_id_range; ++i)
passed += result[i];
if (dev->arch <= 5 && !query->msaa)
passed /= 4;
vresult->u64 = passed;
} else {
vresult->b = !!result[0];
}
break;
case PIPE_QUERY_PRIMITIVES_GENERATED:
case PIPE_QUERY_PRIMITIVES_EMITTED:
panfrost_flush_all_batches(ctx, "Primitive count query");
vresult->u64 = query->end - query->start;
break;
default:
/* TODO: more queries */
break;
}
return true;
}
bool
panfrost_render_condition_check(struct panfrost_context *ctx)
{
if (!ctx->cond_query)
return true;
perf_debug_ctx(ctx, "Implementing conditional rendering on the CPU");
union pipe_query_result res = { 0 };
bool wait =
ctx->cond_mode != PIPE_RENDER_COND_NO_WAIT &&
ctx->cond_mode != PIPE_RENDER_COND_BY_REGION_NO_WAIT;
struct pipe_query *pq = (struct pipe_query *)ctx->cond_query;
if (panfrost_get_query_result(&ctx->base, pq, wait, &res))
return res.u64 != ctx->cond_cond;
return true;
}
static struct pipe_stream_output_target *
panfrost_create_stream_output_target(struct pipe_context *pctx,
struct pipe_resource *prsc,
unsigned buffer_offset,
unsigned buffer_size)
{
struct pipe_stream_output_target *target;
target = &rzalloc(pctx, struct panfrost_streamout_target)->base;
if (!target)
return NULL;
pipe_reference_init(&target->reference, 1);
pipe_resource_reference(&target->buffer, prsc);
target->context = pctx;
target->buffer_offset = buffer_offset;
target->buffer_size = buffer_size;
return target;
}
static void
panfrost_stream_output_target_destroy(struct pipe_context *pctx,
struct pipe_stream_output_target *target)
{
pipe_resource_reference(&target->buffer, NULL);
ralloc_free(target);
}
static void
panfrost_set_stream_output_targets(struct pipe_context *pctx,
unsigned num_targets,
struct pipe_stream_output_target **targets,
const unsigned *offsets)
{
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_streamout *so = &ctx->streamout;
assert(num_targets <= ARRAY_SIZE(so->targets));
for (unsigned i = 0; i < num_targets; i++) {
if (offsets[i] != -1)
pan_so_target(targets[i])->offset = offsets[i];
pipe_so_target_reference(&so->targets[i], targets[i]);
}
for (unsigned i = 0; i < so->num_targets; i++)
pipe_so_target_reference(&so->targets[i], NULL);
so->num_targets = num_targets;
ctx->dirty |= PAN_DIRTY_SO;
}
struct pipe_context *
panfrost_create_context(struct pipe_screen *screen, void *priv, unsigned flags)
{
struct panfrost_context *ctx = rzalloc(NULL, struct panfrost_context);
struct pipe_context *gallium = (struct pipe_context *) ctx;
struct panfrost_device *dev = pan_device(screen);
gallium->screen = screen;
gallium->destroy = panfrost_destroy;
gallium->set_framebuffer_state = panfrost_set_framebuffer_state;
gallium->flush = panfrost_flush;
gallium->clear = panfrost_clear;
gallium->texture_barrier = panfrost_texture_barrier;
gallium->set_frontend_noop = panfrost_set_frontend_noop;
gallium->set_vertex_buffers = panfrost_set_vertex_buffers;
gallium->set_constant_buffer = panfrost_set_constant_buffer;
gallium->set_shader_buffers = panfrost_set_shader_buffers;
gallium->set_shader_images = panfrost_set_shader_images;
gallium->set_stencil_ref = panfrost_set_stencil_ref;
gallium->set_sampler_views = panfrost_set_sampler_views;
gallium->bind_rasterizer_state = panfrost_bind_rasterizer_state;
gallium->delete_rasterizer_state = panfrost_generic_cso_delete;
gallium->bind_vertex_elements_state = panfrost_bind_vertex_elements_state;
gallium->delete_vertex_elements_state = panfrost_generic_cso_delete;
gallium->create_fs_state = panfrost_create_shader_state;
gallium->delete_fs_state = panfrost_delete_shader_state;
gallium->bind_fs_state = panfrost_bind_fs_state;
gallium->create_vs_state = panfrost_create_shader_state;
gallium->delete_vs_state = panfrost_delete_shader_state;
gallium->bind_vs_state = panfrost_bind_vs_state;
gallium->delete_sampler_state = panfrost_generic_cso_delete;
gallium->bind_sampler_states = panfrost_bind_sampler_states;
gallium->bind_depth_stencil_alpha_state = panfrost_bind_depth_stencil_state;
gallium->delete_depth_stencil_alpha_state = panfrost_generic_cso_delete;
gallium->set_sample_mask = panfrost_set_sample_mask;
gallium->set_min_samples = panfrost_set_min_samples;
gallium->set_clip_state = panfrost_set_clip_state;
gallium->set_viewport_states = panfrost_set_viewport_states;
gallium->set_scissor_states = panfrost_set_scissor_states;
gallium->set_polygon_stipple = panfrost_set_polygon_stipple;
gallium->set_active_query_state = panfrost_set_active_query_state;
gallium->render_condition = panfrost_render_condition;
gallium->create_query = panfrost_create_query;
gallium->destroy_query = panfrost_destroy_query;
gallium->begin_query = panfrost_begin_query;
gallium->end_query = panfrost_end_query;
gallium->get_query_result = panfrost_get_query_result;
gallium->create_stream_output_target = panfrost_create_stream_output_target;
gallium->stream_output_target_destroy = panfrost_stream_output_target_destroy;
gallium->set_stream_output_targets = panfrost_set_stream_output_targets;
gallium->bind_blend_state = panfrost_bind_blend_state;
gallium->delete_blend_state = panfrost_generic_cso_delete;
gallium->set_blend_color = panfrost_set_blend_color;
pan_screen(screen)->vtbl.context_init(gallium);
panfrost_resource_context_init(gallium);
panfrost_compute_context_init(gallium);
gallium->stream_uploader = u_upload_create_default(gallium);
gallium->const_uploader = gallium->stream_uploader;
panfrost_pool_init(&ctx->descs, ctx, dev,
0, 4096, "Descriptors", true, false);
panfrost_pool_init(&ctx->shaders, ctx, dev,
PAN_BO_EXECUTE, 4096, "Shaders", true, false);
ctx->blitter = util_blitter_create(gallium);
ctx->writers = _mesa_hash_table_create(gallium, _mesa_hash_pointer,
_mesa_key_pointer_equal);
assert(ctx->blitter);
/* Prepare for render! */
/* By default mask everything on */
ctx->sample_mask = ~0;
ctx->active_queries = true;
int ASSERTED ret;
/* Create a syncobj in a signaled state. Will be updated to point to the
* last queued job out_sync every time we submit a new job.
*/
ret = drmSyncobjCreate(dev->fd, DRM_SYNCOBJ_CREATE_SIGNALED, &ctx->syncobj);
assert(!ret && ctx->syncobj);
return gallium;
}
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