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/*
* Copyright (C) 2017 Rob Clark <robclark@freedesktop.org>
* Copyright © 2018 Google, Inc.
*
* 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.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#include "pipe/p_state.h"
#include "freedreno_resource.h"
#include "fd6_image.h"
#include "fd6_format.h"
#include "fd6_texture.h"
static enum a6xx_state_block texsb[] = {
[PIPE_SHADER_COMPUTE] = SB6_CS_TEX,
[PIPE_SHADER_FRAGMENT] = SB6_FS_TEX,
};
static enum a6xx_state_block imgsb[] = {
[PIPE_SHADER_COMPUTE] = SB6_CS_SSBO,
[PIPE_SHADER_FRAGMENT] = SB6_SSBO,
};
struct fd6_image {
struct pipe_resource *prsc;
enum pipe_format pfmt;
enum a6xx_tex_fmt fmt;
enum a6xx_tex_fetchsize fetchsize;
enum a6xx_tex_type type;
bool srgb;
uint32_t cpp;
uint32_t width;
uint32_t height;
uint32_t depth;
uint32_t pitch;
uint32_t array_pitch;
struct fd_bo *bo;
uint32_t offset;
};
static void translate_image(struct fd6_image *img, struct pipe_image_view *pimg)
{
enum pipe_format format = pimg->format;
struct pipe_resource *prsc = pimg->resource;
struct fd_resource *rsc = fd_resource(prsc);
unsigned lvl;
if (!pimg->resource) {
memset(img, 0, sizeof(*img));
return;
}
img->prsc = prsc;
img->pfmt = format;
img->fmt = fd6_pipe2tex(format);
img->fetchsize = fd6_pipe2fetchsize(format);
img->type = fd6_tex_type(prsc->target);
img->srgb = util_format_is_srgb(format);
img->cpp = rsc->cpp;
img->bo = rsc->bo;
if (prsc->target == PIPE_BUFFER) {
lvl = 0;
img->offset = pimg->u.buf.offset;
img->pitch = pimg->u.buf.size;
img->array_pitch = 0;
} else {
lvl = pimg->u.tex.level;
img->offset = rsc->slices[lvl].offset;
img->pitch = rsc->slices[lvl].pitch * rsc->cpp;
img->array_pitch = rsc->layer_size;
}
img->width = u_minify(prsc->width0, lvl);
img->height = u_minify(prsc->height0, lvl);
img->depth = u_minify(prsc->depth0, lvl);
}
static void emit_image_tex(struct fd_ringbuffer *ring, unsigned slot,
struct fd6_image *img, enum pipe_shader_type shader)
{
unsigned opcode = CP_LOAD_STATE6_FRAG;
assert(shader == PIPE_SHADER_COMPUTE || shader == PIPE_SHADER_FRAGMENT);
OUT_PKT7(ring, opcode, 3 + 12);
OUT_RING(ring, CP_LOAD_STATE6_0_DST_OFF(slot) |
CP_LOAD_STATE6_0_STATE_TYPE(ST6_CONSTANTS) |
CP_LOAD_STATE6_0_STATE_SRC(SS6_DIRECT) |
CP_LOAD_STATE6_0_STATE_BLOCK(texsb[shader]) |
CP_LOAD_STATE6_0_NUM_UNIT(1));
OUT_RING(ring, CP_LOAD_STATE6_1_EXT_SRC_ADDR(0));
OUT_RING(ring, CP_LOAD_STATE6_2_EXT_SRC_ADDR_HI(0));
OUT_RING(ring, A6XX_TEX_CONST_0_FMT(img->fmt) |
fd6_tex_swiz(img->prsc, PIPE_SWIZZLE_X, PIPE_SWIZZLE_Y,
PIPE_SWIZZLE_Z, PIPE_SWIZZLE_W) |
COND(img->srgb, A6XX_TEX_CONST_0_SRGB));
OUT_RING(ring, A6XX_TEX_CONST_1_WIDTH(img->width) |
A6XX_TEX_CONST_1_HEIGHT(img->height));
OUT_RING(ring, A6XX_TEX_CONST_2_FETCHSIZE(img->fetchsize) |
A6XX_TEX_CONST_2_TYPE(img->type) |
A6XX_TEX_CONST_2_PITCH(img->pitch));
OUT_RING(ring, A6XX_TEX_CONST_3_ARRAY_PITCH(img->array_pitch));
if (img->bo) {
OUT_RELOC(ring, img->bo, img->offset,
(uint64_t)A6XX_TEX_CONST_5_DEPTH(img->depth) << 32, 0);
} else {
OUT_RING(ring, 0x00000000);
OUT_RING(ring, A6XX_TEX_CONST_5_DEPTH(img->depth));
}
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
}
static void emit_image_ssbo(struct fd_ringbuffer *ring, unsigned slot,
struct fd6_image *img, enum pipe_shader_type shader)
{
unsigned opcode = CP_LOAD_STATE6_FRAG;
assert(shader == PIPE_SHADER_COMPUTE || shader == PIPE_SHADER_FRAGMENT);
#if 0
OUT_PKT7(ring, opcode, 3 + 4);
OUT_RING(ring, CP_LOAD_STATE6_0_DST_OFF(slot) |
CP_LOAD_STATE6_0_STATE_TYPE(0) |
CP_LOAD_STATE6_0_STATE_SRC(SS6_DIRECT) |
CP_LOAD_STATE6_0_STATE_BLOCK(imgsb[shader]) |
CP_LOAD_STATE6_0_NUM_UNIT(1));
OUT_RING(ring, CP_LOAD_STATE6_1_EXT_SRC_ADDR(0));
OUT_RING(ring, CP_LOAD_STATE6_2_EXT_SRC_ADDR_HI(0));
OUT_RING(ring, A6XX_SSBO_0_0_BASE_LO(0));
OUT_RING(ring, A6XX_SSBO_0_1_PITCH(img->pitch));
OUT_RING(ring, A6XX_SSBO_0_2_ARRAY_PITCH(img->array_pitch));
OUT_RING(ring, A6XX_SSBO_0_3_CPP(img->cpp));
#endif
#if 0
OUT_PKT7(ring, opcode, 3 + 2);
OUT_RING(ring, CP_LOAD_STATE6_0_DST_OFF(slot) |
CP_LOAD_STATE6_0_STATE_TYPE(1) |
CP_LOAD_STATE6_0_STATE_SRC(SS6_DIRECT) |
CP_LOAD_STATE6_0_STATE_BLOCK(imgsb[shader]) |
CP_LOAD_STATE6_0_NUM_UNIT(1));
OUT_RING(ring, CP_LOAD_STATE6_1_EXT_SRC_ADDR(0));
OUT_RING(ring, CP_LOAD_STATE6_2_EXT_SRC_ADDR_HI(0));
OUT_RING(ring, A6XX_SSBO_1_0_FMT(img->fmt) |
A6XX_SSBO_1_0_WIDTH(img->width));
OUT_RING(ring, A6XX_SSBO_1_1_HEIGHT(img->height) |
A6XX_SSBO_1_1_DEPTH(img->depth));
#endif
OUT_PKT7(ring, opcode, 3 + 2);
OUT_RING(ring, CP_LOAD_STATE6_0_DST_OFF(slot) |
CP_LOAD_STATE6_0_STATE_TYPE(2) |
CP_LOAD_STATE6_0_STATE_SRC(SS6_DIRECT) |
CP_LOAD_STATE6_0_STATE_BLOCK(imgsb[shader]) |
CP_LOAD_STATE6_0_NUM_UNIT(1));
OUT_RING(ring, CP_LOAD_STATE6_1_EXT_SRC_ADDR(0));
OUT_RING(ring, CP_LOAD_STATE6_2_EXT_SRC_ADDR_HI(0));
if (img->bo) {
OUT_RELOCW(ring, img->bo, img->offset, 0, 0);
} else {
OUT_RING(ring, 0x00000000);
OUT_RING(ring, 0x00000000);
}
}
/* Note that to avoid conflicts with textures and non-image "SSBO"s, images
* are placedd, in reverse order, at the end of the state block, so for
* example the sampler state:
*
* 0: first texture
* 1: second texture
* ....
* N-1: second image
* N: first image
*/
static unsigned
get_image_slot(unsigned index)
{
/* TODO figure out real limit per generation, and don't hardcode.
* This needs to match get_image_slot() in ir3_compiler_nir.
* Possibly should be factored out into shared helper?
*/
const unsigned max_samplers = 16;
return max_samplers - index - 1;
}
/* Emit required "SSBO" and sampler state. The sampler state is used by the
* hw for imageLoad(), and "SSBO" state for imageStore(). Returns max sampler
* used.
*/
void
fd6_emit_images(struct fd_context *ctx, struct fd_ringbuffer *ring,
enum pipe_shader_type shader)
{
struct fd_shaderimg_stateobj *so = &ctx->shaderimg[shader];
unsigned enabled_mask = so->enabled_mask;
while (enabled_mask) {
unsigned index = u_bit_scan(&enabled_mask);
unsigned slot = get_image_slot(index);
struct fd6_image img;
translate_image(&img, &so->si[index]);
emit_image_tex(ring, slot, &img, shader);
emit_image_ssbo(ring, slot, &img, shader);
}
}
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