/* * Copyright 2018-2019 Alyssa Rosenzweig * * 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 "pan_context.h" #include "pan_util.h" #include "pan_format.h" #include "util/u_format.h" static void panfrost_invert_swizzle(const unsigned char *in, unsigned char *out) { /* First, default to all zeroes to prevent uninitialized junk */ for (unsigned c = 0; c < 4; ++c) out[c] = PIPE_SWIZZLE_0; /* Now "do" what the swizzle says */ for (unsigned c = 0; c < 4; ++c) { unsigned char i = in[c]; /* Who cares? */ assert(PIPE_SWIZZLE_X == 0); if (i > PIPE_SWIZZLE_W) continue; /* Invert */ unsigned idx = i - PIPE_SWIZZLE_X; out[idx] = PIPE_SWIZZLE_X + c; } } static struct mali_rt_format panfrost_mfbd_format(struct pipe_surface *surf) { /* Explode details on the format */ const struct util_format_description *desc = util_format_description(surf->format); /* The swizzle for rendering is inverted from texturing */ unsigned char swizzle[4]; panfrost_invert_swizzle(desc->swizzle, swizzle); /* Fill in accordingly, defaulting to 8-bit UNORM */ struct mali_rt_format fmt = { .unk1 = 0x4000000, .unk2 = 0x1, .nr_channels = MALI_POSITIVE(desc->nr_channels), .unk3 = 0x4, .flags = 0x8, .swizzle = panfrost_translate_swizzle_4(swizzle), .no_preload = true }; if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) fmt.flags |= MALI_MFBD_FORMAT_SRGB; /* sRGB handled as a dedicated flag */ enum pipe_format linearized = util_format_linear(surf->format); /* If RGB, we're good to go */ if (util_format_is_unorm8(desc)) return fmt; /* Set flags for alternative formats */ switch (linearized) { case PIPE_FORMAT_B5G6R5_UNORM: fmt.unk1 = 0x14000000; fmt.nr_channels = MALI_POSITIVE(2); fmt.unk3 |= 0x1; break; case PIPE_FORMAT_A4B4G4R4_UNORM: case PIPE_FORMAT_B4G4R4A4_UNORM: fmt.unk1 = 0x10000000; fmt.unk3 = 0x5; fmt.nr_channels = MALI_POSITIVE(1); break; case PIPE_FORMAT_R10G10B10A2_UNORM: case PIPE_FORMAT_B10G10R10A2_UNORM: case PIPE_FORMAT_R10G10B10X2_UNORM: case PIPE_FORMAT_B10G10R10X2_UNORM: fmt.unk1 = 0x08000000; fmt.unk3 = 0x6; fmt.nr_channels = MALI_POSITIVE(1); break; /* Generic 8-bit */ case PIPE_FORMAT_R8_UINT: case PIPE_FORMAT_R8_SINT: fmt.unk1 = 0x80000000; fmt.unk3 = 0x0; fmt.nr_channels = MALI_POSITIVE(1); break; /* Generic 32-bit */ case PIPE_FORMAT_R11G11B10_FLOAT: case PIPE_FORMAT_R8G8B8A8_UINT: case PIPE_FORMAT_R8G8B8A8_SINT: case PIPE_FORMAT_R16G16_FLOAT: case PIPE_FORMAT_R16G16_UINT: case PIPE_FORMAT_R16G16_SINT: case PIPE_FORMAT_R32_FLOAT: case PIPE_FORMAT_R32_UINT: case PIPE_FORMAT_R32_SINT: case PIPE_FORMAT_R10G10B10A2_UINT: fmt.unk1 = 0x88000000; fmt.unk3 = 0x0; fmt.nr_channels = MALI_POSITIVE(4); break; /* Generic 16-bit */ case PIPE_FORMAT_R8G8_UINT: case PIPE_FORMAT_R8G8_SINT: case PIPE_FORMAT_R16_FLOAT: case PIPE_FORMAT_R16_UINT: case PIPE_FORMAT_R16_SINT: case PIPE_FORMAT_B5G5R5A1_UNORM: fmt.unk1 = 0x84000000; fmt.unk3 = 0x0; fmt.nr_channels = MALI_POSITIVE(2); break; /* Generic 64-bit */ case PIPE_FORMAT_R32G32_FLOAT: case PIPE_FORMAT_R32G32_SINT: case PIPE_FORMAT_R32G32_UINT: case PIPE_FORMAT_R16G16B16A16_FLOAT: case PIPE_FORMAT_R16G16B16A16_SINT: case PIPE_FORMAT_R16G16B16A16_UINT: fmt.unk1 = 0x8c000000; fmt.unk3 = 0x1; fmt.nr_channels = MALI_POSITIVE(2); break; /* Generic 128-bit */ case PIPE_FORMAT_R32G32B32A32_FLOAT: case PIPE_FORMAT_R32G32B32A32_SINT: case PIPE_FORMAT_R32G32B32A32_UINT: fmt.unk1 = 0x90000000; fmt.unk3 = 0x1; fmt.nr_channels = MALI_POSITIVE(4); break; default: unreachable("Invalid format rendering"); } return fmt; } static void panfrost_mfbd_clear( struct panfrost_batch *batch, struct bifrost_framebuffer *fb, struct bifrost_fb_extra *fbx, struct bifrost_render_target *rts, unsigned rt_count) { for (unsigned i = 0; i < rt_count; ++i) { if (!(batch->clear & (PIPE_CLEAR_COLOR0 << i))) continue; rts[i].clear_color_1 = batch->clear_color[i][0]; rts[i].clear_color_2 = batch->clear_color[i][1]; rts[i].clear_color_3 = batch->clear_color[i][2]; rts[i].clear_color_4 = batch->clear_color[i][3]; } if (batch->clear & PIPE_CLEAR_DEPTH) { fb->clear_depth = batch->clear_depth; } if (batch->clear & PIPE_CLEAR_STENCIL) { fb->clear_stencil = batch->clear_stencil; } } static void panfrost_mfbd_set_cbuf( struct bifrost_render_target *rt, struct pipe_surface *surf) { struct panfrost_resource *rsrc = pan_resource(surf->texture); unsigned level = surf->u.tex.level; unsigned first_layer = surf->u.tex.first_layer; assert(surf->u.tex.last_layer == first_layer); int stride = rsrc->slices[level].stride; mali_ptr base = panfrost_get_texture_address(rsrc, level, first_layer); rt->format = panfrost_mfbd_format(surf); /* Now, we set the layout specific pieces */ if (rsrc->layout == PAN_LINEAR) { rt->format.block = MALI_MFBD_BLOCK_LINEAR; rt->framebuffer = base; rt->framebuffer_stride = stride / 16; } else if (rsrc->layout == PAN_TILED) { rt->format.block = MALI_MFBD_BLOCK_TILED; rt->framebuffer = base; rt->framebuffer_stride = stride; } else if (rsrc->layout == PAN_AFBC) { rt->format.block = MALI_MFBD_BLOCK_AFBC; unsigned header_size = rsrc->slices[level].header_size; rt->framebuffer = base + header_size; rt->afbc.metadata = base; rt->afbc.stride = 0; rt->afbc.unk = 0x30009; /* TODO: The blob sets this to something nonzero, but it's not * clear what/how to calculate/if it matters */ rt->framebuffer_stride = 0; } else { fprintf(stderr, "Invalid render layout (cbuf)"); assert(0); } } /* Is a format encoded like Z24S8 and therefore compatible for render? */ static bool panfrost_is_z24s8_variant(enum pipe_format fmt) { switch (fmt) { case PIPE_FORMAT_Z24_UNORM_S8_UINT: case PIPE_FORMAT_Z24X8_UNORM: return true; default: return false; } } static void panfrost_mfbd_set_zsbuf( struct bifrost_framebuffer *fb, struct bifrost_fb_extra *fbx, struct pipe_surface *surf) { struct panfrost_resource *rsrc = pan_resource(surf->texture); unsigned level = surf->u.tex.level; assert(surf->u.tex.first_layer == 0); unsigned offset = rsrc->slices[level].offset; if (rsrc->layout == PAN_AFBC) { /* The only Z/S format we can compress is Z24S8 or variants * thereof (handled by the state tracker) */ assert(panfrost_is_z24s8_variant(surf->format)); mali_ptr base = rsrc->bo->gpu + offset; unsigned header_size = rsrc->slices[level].header_size; fb->mfbd_flags |= MALI_MFBD_EXTRA; fbx->flags = MALI_EXTRA_PRESENT | MALI_EXTRA_AFBC | MALI_EXTRA_AFBC_ZS | MALI_EXTRA_ZS | 0x1; /* unknown */ fbx->ds_afbc.depth_stencil = base + header_size; fbx->ds_afbc.depth_stencil_afbc_metadata = base; fbx->ds_afbc.depth_stencil_afbc_stride = 0; fbx->ds_afbc.zero1 = 0x10009; fbx->ds_afbc.padding = 0x1000; } else if (rsrc->layout == PAN_LINEAR) { /* TODO: Z32F(S8) support, which is always linear */ int stride = rsrc->slices[level].stride; fb->mfbd_flags |= MALI_MFBD_EXTRA; fbx->flags |= MALI_EXTRA_PRESENT | MALI_EXTRA_ZS; fbx->ds_linear.depth = rsrc->bo->gpu + offset; fbx->ds_linear.depth_stride = stride; if (panfrost_is_z24s8_variant(surf->format)) { fbx->flags |= 0x1; } else if (surf->format == PIPE_FORMAT_Z32_UNORM) { /* default flags (0 in bottom place) */ } else if (surf->format == PIPE_FORMAT_Z32_FLOAT) { fbx->flags |= 0xA; fb->mfbd_flags ^= 0x100; fb->mfbd_flags |= 0x200; } else if (surf->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT) { fbx->flags |= 0x1000A; fb->mfbd_flags ^= 0x100; fb->mfbd_flags |= 0x201; struct panfrost_resource *stencil = rsrc->separate_stencil; struct panfrost_slice stencil_slice = stencil->slices[level]; fbx->ds_linear.stencil = stencil->bo->gpu + stencil_slice.offset; fbx->ds_linear.stencil_stride = stencil_slice.stride; } } else { assert(0); } } /* Helper for sequential uploads used for MFBD */ #define UPLOAD(dest, offset, src, max) { \ size_t sz = sizeof(*src); \ memcpy(dest.cpu + offset, src, sz); \ assert((offset + sz) <= max); \ offset += sz; \ } static mali_ptr panfrost_mfbd_upload( struct panfrost_context *ctx, struct bifrost_framebuffer *fb, struct bifrost_fb_extra *fbx, struct bifrost_render_target *rts, unsigned rt_count) { off_t offset = 0; /* There may be extra data stuck in the middle */ bool has_extra = fb->mfbd_flags & MALI_MFBD_EXTRA; /* Compute total size for transfer */ size_t total_sz = sizeof(struct bifrost_framebuffer) + (has_extra ? sizeof(struct bifrost_fb_extra) : 0) + sizeof(struct bifrost_render_target) * 4; struct panfrost_transfer m_f_trans = panfrost_allocate_transient(ctx, total_sz); /* Do the transfer */ UPLOAD(m_f_trans, offset, fb, total_sz); if (has_extra) UPLOAD(m_f_trans, offset, fbx, total_sz); for (unsigned c = 0; c < 4; ++c) { UPLOAD(m_f_trans, offset, &rts[c], total_sz); } /* Return pointer suitable for the fragment section */ unsigned tag = MALI_MFBD | (has_extra ? MALI_MFBD_TAG_EXTRA : 0) | (MALI_POSITIVE(rt_count) << 2); return m_f_trans.gpu | tag; } #undef UPLOAD /* Creates an MFBD for the FRAGMENT section of the bound framebuffer */ mali_ptr panfrost_mfbd_fragment(struct panfrost_context *ctx, bool has_draws) { struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx); struct bifrost_framebuffer fb = panfrost_emit_mfbd(ctx, has_draws); struct bifrost_fb_extra fbx = {}; struct bifrost_render_target rts[4] = {}; /* We always upload at least one dummy GL_NONE render target */ unsigned rt_descriptors = MAX2(ctx->pipe_framebuffer.nr_cbufs, 1); fb.rt_count_1 = MALI_POSITIVE(rt_descriptors); fb.rt_count_2 = rt_descriptors; fb.mfbd_flags = 0x100; /* TODO: MRT clear */ panfrost_mfbd_clear(batch, &fb, &fbx, rts, fb.rt_count_2); /* Upload either the render target or a dummy GL_NONE target */ for (int cb = 0; cb < rt_descriptors; ++cb) { struct pipe_surface *surf = ctx->pipe_framebuffer.cbufs[cb]; if (surf) { panfrost_mfbd_set_cbuf(&rts[cb], surf); /* What is this? Looks like some extension of the bpp * field. Maybe it establishes how much internal * tilebuffer space is reserved? */ unsigned bpp = util_format_get_blocksize(surf->format); fb.rt_count_2 = MAX2(fb.rt_count_2, ALIGN_POT(bpp, 4) / 4); } else { struct mali_rt_format null_rt = { .unk1 = 0x4000000, .no_preload = true }; rts[cb].format = null_rt; rts[cb].framebuffer = 0; rts[cb].framebuffer_stride = 0; } /* TODO: Break out the field */ rts[cb].format.unk1 |= (cb * 0x400); } if (ctx->pipe_framebuffer.zsbuf) { panfrost_mfbd_set_zsbuf(&fb, &fbx, ctx->pipe_framebuffer.zsbuf); } /* When scanning out, the depth buffer is immediately invalidated, so * we don't need to waste bandwidth writing it out. This can improve * performance substantially (Z32_UNORM 1080p @ 60fps is 475 MB/s of * memory bandwidth!). * * The exception is ReadPixels, but this is not supported on GLES so we * can safely ignore it. */ if (panfrost_is_scanout(ctx)) { batch->requirements &= ~PAN_REQ_DEPTH_WRITE; } /* Actualize the requirements */ if (batch->requirements & PAN_REQ_MSAA) { rts[0].format.flags |= MALI_MFBD_FORMAT_MSAA; /* XXX */ fb.unk1 |= (1 << 4) | (1 << 1); fb.rt_count_2 = 4; } if (batch->requirements & PAN_REQ_DEPTH_WRITE) fb.mfbd_flags |= MALI_MFBD_DEPTH_WRITE; /* Checksumming only works with a single render target */ if (ctx->pipe_framebuffer.nr_cbufs == 1) { struct pipe_surface *surf = ctx->pipe_framebuffer.cbufs[0]; struct panfrost_resource *rsrc = pan_resource(surf->texture); struct panfrost_bo *bo = rsrc->bo; if (rsrc->checksummed) { unsigned level = surf->u.tex.level; struct panfrost_slice *slice = &rsrc->slices[level]; fb.mfbd_flags |= MALI_MFBD_EXTRA; fbx.flags |= MALI_EXTRA_PRESENT; fbx.checksum_stride = slice->checksum_stride; fbx.checksum = bo->gpu + slice->checksum_offset; } } return panfrost_mfbd_upload(ctx, &fb, &fbx, rts, rt_descriptors); }