/* * Copyright 2017 Advanced Micro Devices, 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 * on 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 * THE AUTHOR(S) AND/OR THEIR 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 "si_pipe.h" #include "sid.h" #include "util/u_format.h" #include "util/u_pack_color.h" #include "util/u_surface.h" enum { SI_CLEAR = SI_SAVE_FRAGMENT_STATE, SI_CLEAR_SURFACE = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE, }; static void si_alloc_separate_cmask(struct si_screen *sscreen, struct r600_texture *rtex) { if (rtex->cmask_buffer) return; assert(rtex->cmask.size == 0); si_texture_get_cmask_info(sscreen, rtex, &rtex->cmask); if (!rtex->cmask.size) return; rtex->cmask_buffer = (struct r600_resource *) si_aligned_buffer_create(&sscreen->b, R600_RESOURCE_FLAG_UNMAPPABLE, PIPE_USAGE_DEFAULT, rtex->cmask.size, rtex->cmask.alignment); if (rtex->cmask_buffer == NULL) { rtex->cmask.size = 0; return; } /* update colorbuffer state bits */ rtex->cmask.base_address_reg = rtex->cmask_buffer->gpu_address >> 8; rtex->cb_color_info |= S_028C70_FAST_CLEAR(1); p_atomic_inc(&sscreen->compressed_colortex_counter); } static void si_set_clear_color(struct r600_texture *rtex, enum pipe_format surface_format, const union pipe_color_union *color) { union util_color uc; memset(&uc, 0, sizeof(uc)); if (rtex->surface.bpe == 16) { /* DCC fast clear only: * CLEAR_WORD0 = R = G = B * CLEAR_WORD1 = A */ assert(color->ui[0] == color->ui[1] && color->ui[0] == color->ui[2]); uc.ui[0] = color->ui[0]; uc.ui[1] = color->ui[3]; } else if (util_format_is_pure_uint(surface_format)) { util_format_write_4ui(surface_format, color->ui, 0, &uc, 0, 0, 0, 1, 1); } else if (util_format_is_pure_sint(surface_format)) { util_format_write_4i(surface_format, color->i, 0, &uc, 0, 0, 0, 1, 1); } else { util_pack_color(color->f, surface_format, &uc); } memcpy(rtex->color_clear_value, &uc, 2 * sizeof(uint32_t)); } static bool vi_get_fast_clear_parameters(enum pipe_format surface_format, const union pipe_color_union *color, uint32_t* reset_value, bool* clear_words_needed) { bool values[4] = {}; int i; bool main_value = false; bool extra_value = false; int extra_channel; /* This is needed to get the correct DCC clear value for luminance formats. * 1) Get the linear format (because the next step can't handle L8_SRGB). * 2) Convert luminance to red. (the real hw format for luminance) */ surface_format = util_format_linear(surface_format); surface_format = util_format_luminance_to_red(surface_format); const struct util_format_description *desc = util_format_description(surface_format); if (desc->block.bits == 128 && (color->ui[0] != color->ui[1] || color->ui[0] != color->ui[2])) return false; *clear_words_needed = true; *reset_value = 0x20202020U; /* If we want to clear without needing a fast clear eliminate step, we * can set each channel to 0 or 1 (or 0/max for integer formats). We * have two sets of flags, one for the last or first channel(extra) and * one for the other channels(main). */ if (surface_format == PIPE_FORMAT_R11G11B10_FLOAT || surface_format == PIPE_FORMAT_B5G6R5_UNORM || surface_format == PIPE_FORMAT_B5G6R5_SRGB || util_format_is_alpha(surface_format)) { extra_channel = -1; } else if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) { if (si_translate_colorswap(surface_format, false) <= 1) extra_channel = desc->nr_channels - 1; else extra_channel = 0; } else return true; for (i = 0; i < 4; ++i) { int index = desc->swizzle[i] - PIPE_SWIZZLE_X; if (desc->swizzle[i] < PIPE_SWIZZLE_X || desc->swizzle[i] > PIPE_SWIZZLE_W) continue; if (desc->channel[i].pure_integer && desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) { /* Use the maximum value for clamping the clear color. */ int max = u_bit_consecutive(0, desc->channel[i].size - 1); values[i] = color->i[i] != 0; if (color->i[i] != 0 && MIN2(color->i[i], max) != max) return true; } else if (desc->channel[i].pure_integer && desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED) { /* Use the maximum value for clamping the clear color. */ unsigned max = u_bit_consecutive(0, desc->channel[i].size); values[i] = color->ui[i] != 0U; if (color->ui[i] != 0U && MIN2(color->ui[i], max) != max) return true; } else { values[i] = color->f[i] != 0.0F; if (color->f[i] != 0.0F && color->f[i] != 1.0F) return true; } if (index == extra_channel) extra_value = values[i]; else main_value = values[i]; } for (int i = 0; i < 4; ++i) if (values[i] != main_value && desc->swizzle[i] - PIPE_SWIZZLE_X != extra_channel && desc->swizzle[i] >= PIPE_SWIZZLE_X && desc->swizzle[i] <= PIPE_SWIZZLE_W) return true; *clear_words_needed = false; if (main_value) *reset_value |= 0x80808080U; if (extra_value) *reset_value |= 0x40404040U; return true; } void vi_dcc_clear_level(struct si_context *sctx, struct r600_texture *rtex, unsigned level, unsigned clear_value) { struct pipe_resource *dcc_buffer; uint64_t dcc_offset, clear_size; assert(vi_dcc_enabled(rtex, level)); if (rtex->dcc_separate_buffer) { dcc_buffer = &rtex->dcc_separate_buffer->b.b; dcc_offset = 0; } else { dcc_buffer = &rtex->resource.b.b; dcc_offset = rtex->dcc_offset; } if (sctx->b.chip_class >= GFX9) { /* Mipmap level clears aren't implemented. */ assert(rtex->resource.b.b.last_level == 0); /* MSAA needs a different clear size. */ assert(rtex->resource.b.b.nr_samples <= 1); clear_size = rtex->surface.dcc_size; } else { unsigned num_layers = util_num_layers(&rtex->resource.b.b, level); /* If this is 0, fast clear isn't possible. (can occur with MSAA) */ assert(rtex->surface.u.legacy.level[level].dcc_fast_clear_size); /* Layered MSAA DCC fast clears need to clear dcc_fast_clear_size * bytes for each layer. This is not currently implemented, and * therefore MSAA DCC isn't even enabled with multiple layers. */ assert(rtex->resource.b.b.nr_samples <= 1 || num_layers == 1); dcc_offset += rtex->surface.u.legacy.level[level].dcc_offset; clear_size = rtex->surface.u.legacy.level[level].dcc_fast_clear_size * num_layers; } si_clear_buffer(&sctx->b.b, dcc_buffer, dcc_offset, clear_size, clear_value, R600_COHERENCY_CB_META); } /* Set the same micro tile mode as the destination of the last MSAA resolve. * This allows hitting the MSAA resolve fast path, which requires that both * src and dst micro tile modes match. */ static void si_set_optimal_micro_tile_mode(struct si_screen *sscreen, struct r600_texture *rtex) { if (rtex->resource.b.is_shared || rtex->resource.b.b.nr_samples <= 1 || rtex->surface.micro_tile_mode == rtex->last_msaa_resolve_target_micro_mode) return; assert(sscreen->info.chip_class >= GFX9 || rtex->surface.u.legacy.level[0].mode == RADEON_SURF_MODE_2D); assert(rtex->resource.b.b.last_level == 0); if (sscreen->info.chip_class >= GFX9) { /* 4K or larger tiles only. 0 is linear. 1-3 are 256B tiles. */ assert(rtex->surface.u.gfx9.surf.swizzle_mode >= 4); /* If you do swizzle_mode % 4, you'll get: * 0 = Depth * 1 = Standard, * 2 = Displayable * 3 = Rotated * * Depth-sample order isn't allowed: */ assert(rtex->surface.u.gfx9.surf.swizzle_mode % 4 != 0); switch (rtex->last_msaa_resolve_target_micro_mode) { case RADEON_MICRO_MODE_DISPLAY: rtex->surface.u.gfx9.surf.swizzle_mode &= ~0x3; rtex->surface.u.gfx9.surf.swizzle_mode += 2; /* D */ break; case RADEON_MICRO_MODE_THIN: rtex->surface.u.gfx9.surf.swizzle_mode &= ~0x3; rtex->surface.u.gfx9.surf.swizzle_mode += 1; /* S */ break; case RADEON_MICRO_MODE_ROTATED: rtex->surface.u.gfx9.surf.swizzle_mode &= ~0x3; rtex->surface.u.gfx9.surf.swizzle_mode += 3; /* R */ break; default: /* depth */ assert(!"unexpected micro mode"); return; } } else if (sscreen->info.chip_class >= CIK) { /* These magic numbers were copied from addrlib. It doesn't use * any definitions for them either. They are all 2D_TILED_THIN1 * modes with different bpp and micro tile mode. */ switch (rtex->last_msaa_resolve_target_micro_mode) { case RADEON_MICRO_MODE_DISPLAY: rtex->surface.u.legacy.tiling_index[0] = 10; break; case RADEON_MICRO_MODE_THIN: rtex->surface.u.legacy.tiling_index[0] = 14; break; case RADEON_MICRO_MODE_ROTATED: rtex->surface.u.legacy.tiling_index[0] = 28; break; default: /* depth, thick */ assert(!"unexpected micro mode"); return; } } else { /* SI */ switch (rtex->last_msaa_resolve_target_micro_mode) { case RADEON_MICRO_MODE_DISPLAY: switch (rtex->surface.bpe) { case 1: rtex->surface.u.legacy.tiling_index[0] = 10; break; case 2: rtex->surface.u.legacy.tiling_index[0] = 11; break; default: /* 4, 8 */ rtex->surface.u.legacy.tiling_index[0] = 12; break; } break; case RADEON_MICRO_MODE_THIN: switch (rtex->surface.bpe) { case 1: rtex->surface.u.legacy.tiling_index[0] = 14; break; case 2: rtex->surface.u.legacy.tiling_index[0] = 15; break; case 4: rtex->surface.u.legacy.tiling_index[0] = 16; break; default: /* 8, 16 */ rtex->surface.u.legacy.tiling_index[0] = 17; break; } break; default: /* depth, thick */ assert(!"unexpected micro mode"); return; } } rtex->surface.micro_tile_mode = rtex->last_msaa_resolve_target_micro_mode; p_atomic_inc(&sscreen->dirty_tex_counter); } static void si_do_fast_color_clear(struct si_context *sctx, unsigned *buffers, const union pipe_color_union *color) { struct pipe_framebuffer_state *fb = &sctx->framebuffer.state; int i; /* This function is broken in BE, so just disable this path for now */ #ifdef PIPE_ARCH_BIG_ENDIAN return; #endif if (sctx->b.render_cond) return; for (i = 0; i < fb->nr_cbufs; i++) { struct r600_texture *tex; unsigned clear_bit = PIPE_CLEAR_COLOR0 << i; if (!fb->cbufs[i]) continue; /* if this colorbuffer is not being cleared */ if (!(*buffers & clear_bit)) continue; unsigned level = fb->cbufs[i]->u.tex.level; tex = (struct r600_texture *)fb->cbufs[i]->texture; /* the clear is allowed if all layers are bound */ if (fb->cbufs[i]->u.tex.first_layer != 0 || fb->cbufs[i]->u.tex.last_layer != util_max_layer(&tex->resource.b.b, 0)) { continue; } /* cannot clear mipmapped textures */ if (fb->cbufs[i]->texture->last_level != 0) { continue; } /* only supported on tiled surfaces */ if (tex->surface.is_linear) { continue; } /* shared textures can't use fast clear without an explicit flush, * because there is no way to communicate the clear color among * all clients */ if (tex->resource.b.is_shared && !(tex->resource.external_usage & PIPE_HANDLE_USAGE_EXPLICIT_FLUSH)) continue; /* fast color clear with 1D tiling doesn't work on old kernels and CIK */ if (sctx->b.chip_class == CIK && tex->surface.u.legacy.level[0].mode == RADEON_SURF_MODE_1D && sctx->screen->info.drm_major == 2 && sctx->screen->info.drm_minor < 38) { continue; } /* Fast clear is the most appropriate place to enable DCC for * displayable surfaces. */ if (sctx->b.chip_class >= VI && !(sctx->screen->debug_flags & DBG(NO_DCC_FB))) { vi_separate_dcc_try_enable(&sctx->b, tex); /* RB+ isn't supported with a CMASK clear only on Stoney, * so all clears are considered to be hypothetically slow * clears, which is weighed when determining whether to * enable separate DCC. */ if (tex->dcc_gather_statistics && sctx->b.family == CHIP_STONEY) tex->num_slow_clears++; } bool need_decompress_pass = false; /* Use a slow clear for small surfaces where the cost of * the eliminate pass can be higher than the benefit of fast * clear. The closed driver does this, but the numbers may differ. * * This helps on both dGPUs and APUs, even small APUs like Mullins. */ bool too_small = tex->resource.b.b.nr_samples <= 1 && tex->resource.b.b.width0 * tex->resource.b.b.height0 <= 512 * 512; /* Try to clear DCC first, otherwise try CMASK. */ if (vi_dcc_enabled(tex, 0)) { uint32_t reset_value; bool clear_words_needed; if (sctx->screen->debug_flags & DBG(NO_DCC_CLEAR)) continue; /* This can only occur with MSAA. */ if (sctx->b.chip_class == VI && !tex->surface.u.legacy.level[level].dcc_fast_clear_size) continue; if (!vi_get_fast_clear_parameters(fb->cbufs[i]->format, color, &reset_value, &clear_words_needed)) continue; if (clear_words_needed && too_small) continue; /* DCC fast clear with MSAA should clear CMASK to 0xC. */ if (tex->resource.b.b.nr_samples >= 2 && tex->cmask.size) { /* TODO: This doesn't work with MSAA. */ if (clear_words_needed) continue; si_clear_buffer(&sctx->b.b, &tex->cmask_buffer->b.b, tex->cmask.offset, tex->cmask.size, 0xCCCCCCCC, R600_COHERENCY_CB_META); need_decompress_pass = true; } vi_dcc_clear_level(sctx, tex, 0, reset_value); if (clear_words_needed) need_decompress_pass = true; tex->separate_dcc_dirty = true; } else { if (too_small) continue; /* 128-bit formats are unusupported */ if (tex->surface.bpe > 8) { continue; } /* RB+ doesn't work with CMASK fast clear on Stoney. */ if (sctx->b.family == CHIP_STONEY) continue; /* ensure CMASK is enabled */ si_alloc_separate_cmask(sctx->screen, tex); if (tex->cmask.size == 0) { continue; } /* Do the fast clear. */ si_clear_buffer(&sctx->b.b, &tex->cmask_buffer->b.b, tex->cmask.offset, tex->cmask.size, 0, R600_COHERENCY_CB_META); need_decompress_pass = true; } if (need_decompress_pass && !(tex->dirty_level_mask & (1 << level))) { tex->dirty_level_mask |= 1 << level; p_atomic_inc(&sctx->screen->compressed_colortex_counter); } /* We can change the micro tile mode before a full clear. */ si_set_optimal_micro_tile_mode(sctx->screen, tex); si_set_clear_color(tex, fb->cbufs[i]->format, color); sctx->framebuffer.dirty_cbufs |= 1 << i; si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); *buffers &= ~clear_bit; } } static void si_clear(struct pipe_context *ctx, unsigned buffers, const union pipe_color_union *color, double depth, unsigned stencil) { struct si_context *sctx = (struct si_context *)ctx; struct pipe_framebuffer_state *fb = &sctx->framebuffer.state; struct pipe_surface *zsbuf = fb->zsbuf; struct r600_texture *zstex = zsbuf ? (struct r600_texture*)zsbuf->texture : NULL; if (buffers & PIPE_CLEAR_COLOR) { si_do_fast_color_clear(sctx, &buffers, color); if (!buffers) return; /* all buffers have been fast cleared */ } if (buffers & PIPE_CLEAR_COLOR) { int i; /* These buffers cannot use fast clear, make sure to disable expansion. */ for (i = 0; i < fb->nr_cbufs; i++) { struct r600_texture *tex; /* If not clearing this buffer, skip. */ if (!(buffers & (PIPE_CLEAR_COLOR0 << i))) continue; if (!fb->cbufs[i]) continue; tex = (struct r600_texture *)fb->cbufs[i]->texture; if (tex->fmask.size == 0) tex->dirty_level_mask &= ~(1 << fb->cbufs[i]->u.tex.level); } } if (zstex && si_htile_enabled(zstex, zsbuf->u.tex.level) && zsbuf->u.tex.first_layer == 0 && zsbuf->u.tex.last_layer == util_max_layer(&zstex->resource.b.b, 0)) { /* TC-compatible HTILE only supports depth clears to 0 or 1. */ if (buffers & PIPE_CLEAR_DEPTH && (!zstex->tc_compatible_htile || depth == 0 || depth == 1)) { /* Need to disable EXPCLEAR temporarily if clearing * to a new value. */ if (!zstex->depth_cleared || zstex->depth_clear_value != depth) { sctx->db_depth_disable_expclear = true; } zstex->depth_clear_value = depth; sctx->framebuffer.dirty_zsbuf = true; si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_DEPTH_CLEAR */ sctx->db_depth_clear = true; si_mark_atom_dirty(sctx, &sctx->db_render_state); } /* TC-compatible HTILE only supports stencil clears to 0. */ if (buffers & PIPE_CLEAR_STENCIL && (!zstex->tc_compatible_htile || stencil == 0)) { stencil &= 0xff; /* Need to disable EXPCLEAR temporarily if clearing * to a new value. */ if (!zstex->stencil_cleared || zstex->stencil_clear_value != stencil) { sctx->db_stencil_disable_expclear = true; } zstex->stencil_clear_value = stencil; sctx->framebuffer.dirty_zsbuf = true; si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_STENCIL_CLEAR */ sctx->db_stencil_clear = true; si_mark_atom_dirty(sctx, &sctx->db_render_state); } /* TODO: Find out what's wrong here. Fast depth clear leads to * corruption in ARK: Survival Evolved, but that may just be * a coincidence and the root cause is elsewhere. * * The corruption can be fixed by putting the DB flush before * or after the depth clear. (surprisingly) * * https://bugs.freedesktop.org/show_bug.cgi?id=102955 (apitrace) * * This hack decreases back-to-back ClearDepth performance. */ if (sctx->screen->clear_db_cache_before_clear) { sctx->b.flags |= SI_CONTEXT_FLUSH_AND_INV_DB; } } si_blitter_begin(ctx, SI_CLEAR); util_blitter_clear(sctx->blitter, fb->width, fb->height, util_framebuffer_get_num_layers(fb), buffers, color, depth, stencil); si_blitter_end(ctx); if (sctx->db_depth_clear) { sctx->db_depth_clear = false; sctx->db_depth_disable_expclear = false; zstex->depth_cleared = true; si_mark_atom_dirty(sctx, &sctx->db_render_state); } if (sctx->db_stencil_clear) { sctx->db_stencil_clear = false; sctx->db_stencil_disable_expclear = false; zstex->stencil_cleared = true; si_mark_atom_dirty(sctx, &sctx->db_render_state); } } static void si_clear_render_target(struct pipe_context *ctx, struct pipe_surface *dst, const union pipe_color_union *color, unsigned dstx, unsigned dsty, unsigned width, unsigned height, bool render_condition_enabled) { struct si_context *sctx = (struct si_context *)ctx; si_blitter_begin(ctx, SI_CLEAR_SURFACE | (render_condition_enabled ? 0 : SI_DISABLE_RENDER_COND)); util_blitter_clear_render_target(sctx->blitter, dst, color, dstx, dsty, width, height); si_blitter_end(ctx); } static void si_clear_depth_stencil(struct pipe_context *ctx, struct pipe_surface *dst, unsigned clear_flags, double depth, unsigned stencil, unsigned dstx, unsigned dsty, unsigned width, unsigned height, bool render_condition_enabled) { struct si_context *sctx = (struct si_context *)ctx; si_blitter_begin(ctx, SI_CLEAR_SURFACE | (render_condition_enabled ? 0 : SI_DISABLE_RENDER_COND)); util_blitter_clear_depth_stencil(sctx->blitter, dst, clear_flags, depth, stencil, dstx, dsty, width, height); si_blitter_end(ctx); } static void si_clear_texture(struct pipe_context *pipe, struct pipe_resource *tex, unsigned level, const struct pipe_box *box, const void *data) { struct pipe_screen *screen = pipe->screen; struct r600_texture *rtex = (struct r600_texture*)tex; struct pipe_surface tmpl = {{0}}; struct pipe_surface *sf; const struct util_format_description *desc = util_format_description(tex->format); tmpl.format = tex->format; tmpl.u.tex.first_layer = box->z; tmpl.u.tex.last_layer = box->z + box->depth - 1; tmpl.u.tex.level = level; sf = pipe->create_surface(pipe, tex, &tmpl); if (!sf) return; if (rtex->is_depth) { unsigned clear; float depth; uint8_t stencil = 0; /* Depth is always present. */ clear = PIPE_CLEAR_DEPTH; desc->unpack_z_float(&depth, 0, data, 0, 1, 1); if (rtex->surface.has_stencil) { clear |= PIPE_CLEAR_STENCIL; desc->unpack_s_8uint(&stencil, 0, data, 0, 1, 1); } si_clear_depth_stencil(pipe, sf, clear, depth, stencil, box->x, box->y, box->width, box->height, false); } else { union pipe_color_union color; /* pipe_color_union requires the full vec4 representation. */ if (util_format_is_pure_uint(tex->format)) desc->unpack_rgba_uint(color.ui, 0, data, 0, 1, 1); else if (util_format_is_pure_sint(tex->format)) desc->unpack_rgba_sint(color.i, 0, data, 0, 1, 1); else desc->unpack_rgba_float(color.f, 0, data, 0, 1, 1); if (screen->is_format_supported(screen, tex->format, tex->target, 0, PIPE_BIND_RENDER_TARGET)) { si_clear_render_target(pipe, sf, &color, box->x, box->y, box->width, box->height, false); } else { /* Software fallback - just for R9G9B9E5_FLOAT */ util_clear_render_target(pipe, sf, &color, box->x, box->y, box->width, box->height); } } pipe_surface_reference(&sf, NULL); } void si_init_clear_functions(struct si_context *sctx) { sctx->b.b.clear = si_clear; sctx->b.b.clear_render_target = si_clear_render_target; sctx->b.b.clear_depth_stencil = si_clear_depth_stencil; sctx->b.b.clear_texture = si_clear_texture; }