diff options
Diffstat (limited to 'src/gallium/drivers/panfrost/pan_mfbd.c')
| -rw-r--r-- | src/gallium/drivers/panfrost/pan_mfbd.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/gallium/drivers/panfrost/pan_mfbd.c b/src/gallium/drivers/panfrost/pan_mfbd.c new file mode 100644 index 00000000000..dffe13e6713 --- /dev/null +++ b/src/gallium/drivers/panfrost/pan_mfbd.c @@ -0,0 +1,273 @@ +/* + * 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 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->texture->format); + + /* Fill in accordingly */ + + struct mali_rt_format fmt = { + .unk1 = 0x4000000, + .unk2 = 0x1, + .nr_channels = MALI_POSITIVE(desc->nr_channels), + .flags = 0x444, + .swizzle = panfrost_translate_swizzle_4(desc->swizzle), + .unk4 = 0x8 + }; + + return fmt; +} + +static void +panfrost_mfbd_enable_msaa(struct panfrost_context *ctx) +{ + ctx->fragment_rts[0].format.flags |= MALI_MFBD_FORMAT_MSAA; + + /* XXX */ + ctx->fragment_mfbd.unk1 |= (1 << 4) | (1 << 1); + ctx->fragment_mfbd.rt_count_2 = 4; +} + +static void +panfrost_mfbd_clear(struct panfrost_job *job) +{ + struct panfrost_context *ctx = job->ctx; + struct bifrost_render_target *buffer_color = &ctx->fragment_rts[0]; + struct bifrost_framebuffer *buffer_ds = &ctx->fragment_mfbd; + + if (job->clear & PIPE_CLEAR_COLOR) { + buffer_color->clear_color_1 = job->clear_color; + buffer_color->clear_color_2 = job->clear_color; + buffer_color->clear_color_3 = job->clear_color; + buffer_color->clear_color_4 = job->clear_color; + } + + if (job->clear & PIPE_CLEAR_DEPTH) { + buffer_ds->clear_depth = job->clear_depth; + } + + if (job->clear & PIPE_CLEAR_STENCIL) { + buffer_ds->clear_stencil = job->clear_stencil; + } + + if (job->clear & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) { + /* Setup combined 24/8 depth/stencil */ + ctx->fragment_mfbd.unk3 |= MALI_MFBD_EXTRA; + ctx->fragment_extra.flags = 0x405; + ctx->fragment_extra.ds_linear.depth = ctx->depth_stencil_buffer.gpu; + ctx->fragment_extra.ds_linear.depth_stride = ctx->pipe_framebuffer.width * 4; + } +} + +static void +panfrost_mfbd_set_cbuf( + struct panfrost_context *ctx, + struct pipe_surface *surf, + unsigned cb) +{ + struct panfrost_resource *rsrc = pan_resource(surf->texture); + + signed stride = + util_format_get_stride(surf->format, surf->texture->width0); + + ctx->fragment_rts[cb].format = panfrost_mfbd_format(surf); + + /* Now, we set the layout specific pieces */ + + if (rsrc->bo->layout == PAN_LINEAR) { + mali_ptr framebuffer = rsrc->bo->gpu[0]; + + /* The default is upside down from OpenGL's perspective. */ + if (panfrost_is_scanout(ctx)) { + framebuffer += stride * (surf->texture->height0 - 1); + stride = -stride; + } + + /* MFBD specifies stride in tiles */ + ctx->fragment_rts[cb].framebuffer = framebuffer; + ctx->fragment_rts[cb].framebuffer_stride = stride / 16; + } else if (rsrc->bo->layout == PAN_AFBC) { + ctx->fragment_rts[cb].afbc.metadata = rsrc->bo->afbc_slab.gpu; + ctx->fragment_rts[cb].afbc.stride = 0; + ctx->fragment_rts[cb].afbc.unk = 0x30009; + + ctx->fragment_rts[cb].format.flags |= MALI_MFBD_FORMAT_AFBC; + + mali_ptr afbc_main = rsrc->bo->afbc_slab.gpu + rsrc->bo->afbc_metadata_size; + ctx->fragment_rts[cb].framebuffer = afbc_main; + + /* TODO: Investigate shift */ + ctx->fragment_rts[cb].framebuffer_stride = stride << 1; + } else { + fprintf(stderr, "Invalid render layout (cbuf %d)", cb); + assert(0); + } +} + +static void +panfrost_mfbd_set_targets(struct panfrost_context *ctx) +{ + for (int cb = 0; cb < ctx->pipe_framebuffer.nr_cbufs; ++cb) { + struct pipe_surface *surf = ctx->pipe_framebuffer.cbufs[cb]; + panfrost_mfbd_set_cbuf(ctx, surf, cb); + } + + /* Enable depth/stencil AFBC for the framebuffer (not the render target) */ + if (ctx->pipe_framebuffer.zsbuf) { + struct panfrost_resource *rsrc = (struct panfrost_resource *) ctx->pipe_framebuffer.zsbuf->texture; + + if (rsrc->bo->layout == PAN_AFBC) { + ctx->fragment_mfbd.unk3 |= MALI_MFBD_EXTRA; + + ctx->fragment_extra.flags = + MALI_EXTRA_PRESENT | + MALI_EXTRA_AFBC | + MALI_EXTRA_AFBC_ZS | + MALI_EXTRA_ZS | + 0x1; /* unknown */ + + ctx->fragment_extra.ds_afbc.depth_stencil_afbc_metadata = rsrc->bo->afbc_slab.gpu; + ctx->fragment_extra.ds_afbc.depth_stencil_afbc_stride = 0; + + ctx->fragment_extra.ds_afbc.depth_stencil = rsrc->bo->afbc_slab.gpu + rsrc->bo->afbc_metadata_size; + + ctx->fragment_extra.ds_afbc.zero1 = 0x10009; + ctx->fragment_extra.ds_afbc.padding = 0x1000; + + ctx->fragment_mfbd.unk3 |= MALI_MFBD_DEPTH_WRITE; + } + } + + /* For the special case of a depth-only FBO, we need to attach a dummy render target */ + + if (ctx->pipe_framebuffer.nr_cbufs == 0) { + struct mali_rt_format null_rt = { + .unk1 = 0x4000000, + .unk4 = 0x8 + }; + + ctx->fragment_rts[0].format = null_rt; + ctx->fragment_rts[0].framebuffer = 0; + ctx->fragment_rts[0].framebuffer_stride = 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) +{ + off_t offset = 0; + + /* We always upload at least one (dummy) cbuf */ + unsigned cbufs = MAX2(ctx->pipe_framebuffer.nr_cbufs, 1); + + /* There may be extra data stuck in the middle */ + bool has_extra = ctx->fragment_mfbd.unk3 & 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) * cbufs; + + struct panfrost_transfer m_f_trans = + panfrost_allocate_transient(ctx, total_sz); + + /* Do the transfer */ + + UPLOAD(m_f_trans, offset, ctx->fragment_mfbd, total_sz); + + if (has_extra) + UPLOAD(m_f_trans, offset, ctx->fragment_extra, total_sz); + + for (unsigned c = 0; c < cbufs; ++c) { + UPLOAD(m_f_trans, offset, ctx->fragment_rts[c], total_sz); + } + + /* Return pointer suitable for the fragment seciton */ + return m_f_trans.gpu | MALI_MFBD | (has_extra ? 2 : 0); +} + +#undef UPLOAD + +/* Creates an MFBD for the FRAGMENT section of the bound framebuffer */ + +mali_ptr +panfrost_mfbd_fragment(struct panfrost_context *ctx) +{ + struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); + + struct bifrost_framebuffer fb = panfrost_emit_mfbd(ctx); + + /* XXX: MRT case */ + fb.rt_count_2 = 1; + fb.unk3 = 0x100; + + struct bifrost_render_target rt = {}; + + memcpy(&ctx->fragment_rts[0], &rt, sizeof(rt)); + memset(&ctx->fragment_extra, 0, sizeof(ctx->fragment_extra)); + memcpy(&ctx->fragment_mfbd, &fb, sizeof(fb)); + + panfrost_mfbd_clear(job); + panfrost_mfbd_set_targets(ctx); + + if (job->msaa) + panfrost_mfbd_enable_msaa(ctx); + + if (ctx->pipe_framebuffer.nr_cbufs == 1) { + struct panfrost_resource *rsrc = (struct panfrost_resource *) ctx->pipe_framebuffer.cbufs[0]->texture; + + if (rsrc->bo->has_checksum) { + int stride = util_format_get_stride(rsrc->base.format, rsrc->base.width0); + + ctx->fragment_mfbd.unk3 |= MALI_MFBD_EXTRA; + ctx->fragment_extra.flags |= MALI_EXTRA_PRESENT; + ctx->fragment_extra.checksum_stride = rsrc->bo->checksum_stride; + ctx->fragment_extra.checksum = rsrc->bo->gpu[0] + stride * rsrc->base.height0; + } + } + + return panfrost_mfbd_upload(ctx); +} |