[Mesa-dev] [PATCH 08/19] etnaviv: GC7000: Split off RS blit functions
Christian Gmeiner
christian.gmeiner at gmail.com
Sun Nov 5 12:09:58 UTC 2017
2017-10-30 17:16 GMT+01:00 Wladimir J. van der Laan <laanwj at gmail.com>:
> Prepare for BLT-based blitting path by moving RS-based
> blitting to its own implementation file.
>
> Signed-off-by: Wladimir J. van der Laan <laanwj at gmail.com>
> ---
> src/gallium/drivers/etnaviv/Makefile.sources | 1 +
src/gallium/drivers/etnaviv/meson.build needs changed too.
> src/gallium/drivers/etnaviv/etnaviv_clear_blit.c | 553 +------------------
> src/gallium/drivers/etnaviv/etnaviv_clear_blit.h | 9 +
> .../drivers/etnaviv/etnaviv_clear_blit_rs.c | 595 +++++++++++++++++++++
Maybe we could move the rs specific stuff directly into
etnaviv_rs.[ch]? So we end with
etnaviv_blt.[ch] and etnaviv_rs.[ch]. (Just an idea I had during review).
> 4 files changed, 610 insertions(+), 548 deletions(-)
> create mode 100644 src/gallium/drivers/etnaviv/etnaviv_clear_blit_rs.c
>
> diff --git a/src/gallium/drivers/etnaviv/Makefile.sources b/src/gallium/drivers/etnaviv/Makefile.sources
> index 3fab212..f4acaa2 100644
> --- a/src/gallium/drivers/etnaviv/Makefile.sources
> +++ b/src/gallium/drivers/etnaviv/Makefile.sources
> @@ -13,6 +13,7 @@ C_SOURCES := \
> etnaviv_blt.h \
> etnaviv_clear_blit.c \
> etnaviv_clear_blit.h \
> + etnaviv_clear_blit_rs.c \
> etnaviv_compiler.c \
> etnaviv_compiler.h \
> etnaviv_context.c \
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> index 878e3fd..faf8f39 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> @@ -30,7 +30,6 @@
>
> #include "etnaviv_context.h"
> #include "etnaviv_emit.h"
> -#include "etnaviv_emit.h"
> #include "etnaviv_format.h"
> #include "etnaviv_resource.h"
> #include "etnaviv_surface.h"
> @@ -44,7 +43,7 @@
> #include "util/u_surface.h"
>
> /* Save current state for blitter operation */
> -static void
> +void
> etna_blit_save_state(struct etna_context *ctx)
> {
> util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vertex_buffer.vb);
> @@ -65,43 +64,8 @@ etna_blit_save_state(struct etna_context *ctx)
> ctx->num_fragment_sampler_views, ctx->sampler_view);
> }
>
> -/* Generate clear command for a surface (non-fast clear case) */
> -void
> -etna_rs_gen_clear_surface(struct etna_context *ctx, struct etna_surface *surf,
> - uint32_t clear_value)
> -{
> - struct etna_resource *dst = etna_resource(surf->base.texture);
> - uint32_t format = translate_rs_format(surf->base.format);
> -
> - if (format == ETNA_NO_MATCH) {
> - BUG("etna_rs_gen_clear_surface: Unhandled clear fmt %s", util_format_name(surf->base.format));
> - format = RS_FORMAT_A8R8G8B8;
> - assert(0);
> - }
> -
> - /* use tiled clear if width is multiple of 16 */
> - bool tiled_clear = (surf->surf.padded_width & ETNA_RS_WIDTH_MASK) == 0 &&
> - (surf->surf.padded_height & ETNA_RS_HEIGHT_MASK) == 0;
> -
> - etna_compile_rs_state( ctx, &surf->clear_command, &(struct rs_state) {
> - .source_format = format,
> - .dest_format = format,
> - .dest = dst->bo,
> - .dest_offset = surf->surf.offset,
> - .dest_stride = surf->surf.stride,
> - .dest_padded_height = surf->surf.padded_height,
> - .dest_tiling = tiled_clear ? dst->layout : ETNA_LAYOUT_LINEAR,
> - .dither = {0xffffffff, 0xffffffff},
> - .width = surf->surf.padded_width, /* These must be padded to 16x4 if !LINEAR, otherwise RS will hang */
> - .height = surf->surf.padded_height,
> - .clear_value = {clear_value},
> - .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_ENABLED1,
> - .clear_bits = 0xffff
> - });
> -}
> -
> -static inline uint32_t
> -pack_rgba(enum pipe_format format, const float *rgba)
> +uint32_t
> +etna_clear_blit_pack_rgba(enum pipe_format format, const float *rgba)
> {
> union util_color uc;
> util_pack_color(rgba, format, &uc);
> @@ -112,152 +76,6 @@ pack_rgba(enum pipe_format format, const float *rgba)
> }
>
> static void
> -etna_blit_clear_color(struct pipe_context *pctx, struct pipe_surface *dst,
> - const union pipe_color_union *color)
> -{
> - struct etna_context *ctx = etna_context(pctx);
> - struct etna_surface *surf = etna_surface(dst);
> - uint32_t new_clear_value = pack_rgba(surf->base.format, color->f);
> -
> - if (surf->surf.ts_size) { /* TS: use precompiled clear command */
> - ctx->framebuffer.TS_COLOR_CLEAR_VALUE = new_clear_value;
> -
> - if (VIV_FEATURE(ctx->screen, chipMinorFeatures1, AUTO_DISABLE)) {
> - /* Set number of color tiles to be filled */
> - etna_set_state(ctx->stream, VIVS_TS_COLOR_AUTO_DISABLE_COUNT,
> - surf->surf.padded_width * surf->surf.padded_height / 16);
> - ctx->framebuffer.TS_MEM_CONFIG |= VIVS_TS_MEM_CONFIG_COLOR_AUTO_DISABLE;
> - }
> -
> - surf->level->ts_valid = true;
> - ctx->dirty |= ETNA_DIRTY_TS | ETNA_DIRTY_DERIVE_TS;
> - } else if (unlikely(new_clear_value != surf->level->clear_value)) { /* Queue normal RS clear for non-TS surfaces */
> - /* If clear color changed, re-generate stored command */
> - etna_rs_gen_clear_surface(ctx, surf, new_clear_value);
> - }
> -
> - etna_submit_rs_state(ctx, &surf->clear_command);
> - surf->level->clear_value = new_clear_value;
> - resource_written(ctx, surf->base.texture);
> - etna_resource(surf->base.texture)->seqno++;
> -}
> -
> -static void
> -etna_blit_clear_zs(struct pipe_context *pctx, struct pipe_surface *dst,
> - unsigned buffers, double depth, unsigned stencil)
> -{
> - struct etna_context *ctx = etna_context(pctx);
> - struct etna_surface *surf = etna_surface(dst);
> - uint32_t new_clear_value = translate_clear_depth_stencil(surf->base.format, depth, stencil);
> - uint32_t new_clear_bits = 0, clear_bits_depth, clear_bits_stencil;
> -
> - /* Get the channels to clear */
> - switch (surf->base.format) {
> - case PIPE_FORMAT_Z16_UNORM:
> - clear_bits_depth = 0xffff;
> - clear_bits_stencil = 0;
> - break;
> - case PIPE_FORMAT_X8Z24_UNORM:
> - case PIPE_FORMAT_S8_UINT_Z24_UNORM:
> - clear_bits_depth = 0xeeee;
> - clear_bits_stencil = 0x1111;
> - break;
> - default:
> - clear_bits_depth = clear_bits_stencil = 0xffff;
> - break;
> - }
> -
> - if (buffers & PIPE_CLEAR_DEPTH)
> - new_clear_bits |= clear_bits_depth;
> - if (buffers & PIPE_CLEAR_STENCIL)
> - new_clear_bits |= clear_bits_stencil;
> -
> - /* FIXME: when tile status is enabled, this becomes more complex as
> - * we may separately clear the depth from the stencil. In this case,
> - * we want to resolve the surface, and avoid using the tile status.
> - * We may be better off recording the pending clear operation,
> - * delaying the actual clear to the first use. This way, we can merge
> - * consecutive clears together. */
> - if (surf->surf.ts_size) { /* TS: use precompiled clear command */
> - /* Set new clear depth value */
> - ctx->framebuffer.TS_DEPTH_CLEAR_VALUE = new_clear_value;
> - if (VIV_FEATURE(ctx->screen, chipMinorFeatures1, AUTO_DISABLE)) {
> - /* Set number of depth tiles to be filled */
> - etna_set_state(ctx->stream, VIVS_TS_DEPTH_AUTO_DISABLE_COUNT,
> - surf->surf.padded_width * surf->surf.padded_height / 16);
> - ctx->framebuffer.TS_MEM_CONFIG |= VIVS_TS_MEM_CONFIG_DEPTH_AUTO_DISABLE;
> - }
> -
> - surf->level->ts_valid = true;
> - ctx->dirty |= ETNA_DIRTY_TS | ETNA_DIRTY_DERIVE_TS;
> - } else {
> - if (unlikely(new_clear_value != surf->level->clear_value)) { /* Queue normal RS clear for non-TS surfaces */
> - /* If clear depth value changed, re-generate stored command */
> - etna_rs_gen_clear_surface(ctx, surf, new_clear_value);
> - }
> - /* Update the channels to be cleared */
> - etna_modify_rs_clearbits(&surf->clear_command, new_clear_bits);
> - }
> -
> - etna_submit_rs_state(ctx, &surf->clear_command);
> - surf->level->clear_value = new_clear_value;
> - resource_written(ctx, surf->base.texture);
> - etna_resource(surf->base.texture)->seqno++;
> -}
> -
> -static void
> -etna_clear(struct pipe_context *pctx, unsigned buffers,
> - const union pipe_color_union *color, double depth, unsigned stencil)
> -{
> - struct etna_context *ctx = etna_context(pctx);
> -
> - /* Flush color and depth cache before clearing anything.
> - * This is especially important when coming from another surface, as
> - * otherwise it may clear part of the old surface instead. */
> - etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> - etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> -
> - /* Preparation: Flush the TS if needed. This must be done after flushing
> - * color and depth, otherwise it can result in crashes */
> - bool need_ts_flush = false;
> - if ((buffers & PIPE_CLEAR_COLOR) && ctx->framebuffer_s.nr_cbufs) {
> - struct etna_surface *surf = etna_surface(ctx->framebuffer_s.cbufs[0]);
> - if (surf->surf.ts_size)
> - need_ts_flush = true;
> - }
> - if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL) {
> - struct etna_surface *surf = etna_surface(ctx->framebuffer_s.zsbuf);
> -
> - if (surf->surf.ts_size)
> - need_ts_flush = true;
> - }
> -
> - if (need_ts_flush)
> - etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
> -
> - /* No need to set up the TS here as RS clear operations (in contrast to
> - * resolve and copy) do not require the TS state.
> - */
> - if (buffers & PIPE_CLEAR_COLOR) {
> - for (int idx = 0; idx < ctx->framebuffer_s.nr_cbufs; ++idx) {
> - etna_blit_clear_color(pctx, ctx->framebuffer_s.cbufs[idx],
> - &color[idx]);
> - }
> - }
> -
> - /* Flush the color and depth caches before each RS clear operation
> - * This fixes a hang on GC600. */
> - if (buffers & PIPE_CLEAR_DEPTHSTENCIL && buffers & PIPE_CLEAR_COLOR)
> - etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE,
> - VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> -
> - if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL)
> - etna_blit_clear_zs(pctx, ctx->framebuffer_s.zsbuf, buffers, depth, stencil);
> -
> - etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> -}
> -
> -static void
> etna_clear_render_target(struct pipe_context *pctx, struct pipe_surface *dst,
> const union pipe_color_union *color, unsigned dstx,
> unsigned dsty, unsigned width, unsigned height,
> @@ -316,367 +134,6 @@ etna_resource_copy_region(struct pipe_context *pctx, struct pipe_resource *dst,
> }
> }
>
> -static bool
> -etna_manual_blit(struct etna_resource *dst, struct etna_resource_level *dst_lev,
> - unsigned int dst_offset, struct etna_resource *src,
> - struct etna_resource_level *src_lev, unsigned int src_offset,
> - const struct pipe_blit_info *blit_info)
> -{
> - void *smap, *srow, *dmap, *drow;
> - size_t tile_size;
> -
> - assert(src->layout == ETNA_LAYOUT_TILED);
> - assert(dst->layout == ETNA_LAYOUT_TILED);
> - assert(src->base.nr_samples == 0);
> - assert(dst->base.nr_samples == 0);
> -
> - tile_size = util_format_get_blocksize(blit_info->src.format) * 4 * 4;
> -
> - smap = etna_bo_map(src->bo);
> - if (!smap)
> - return false;
> -
> - dmap = etna_bo_map(dst->bo);
> - if (!dmap)
> - return false;
> -
> - srow = smap + src_offset;
> - drow = dmap + dst_offset;
> -
> - etna_bo_cpu_prep(src->bo, DRM_ETNA_PREP_READ);
> - etna_bo_cpu_prep(dst->bo, DRM_ETNA_PREP_WRITE);
> -
> - for (int y = 0; y < blit_info->src.box.height; y += 4) {
> - memcpy(drow, srow, tile_size * blit_info->src.box.width);
> - srow += src_lev->stride * 4;
> - drow += dst_lev->stride * 4;
> - }
> -
> - etna_bo_cpu_fini(dst->bo);
> - etna_bo_cpu_fini(src->bo);
> -
> - return true;
> -}
> -
> -static inline size_t
> -etna_compute_tileoffset(const struct pipe_box *box, enum pipe_format format,
> - size_t stride, enum etna_surface_layout layout)
> -{
> - size_t offset;
> - unsigned int x = box->x, y = box->y;
> - unsigned int blocksize = util_format_get_blocksize(format);
> -
> - switch (layout) {
> - case ETNA_LAYOUT_LINEAR:
> - offset = y * stride + x * blocksize;
> - break;
> - case ETNA_LAYOUT_MULTI_TILED:
> - y >>= 1;
> - /* fall-through */
> - case ETNA_LAYOUT_TILED:
> - assert(!(x & 0x03) && !(y & 0x03));
> - offset = (y & ~0x03) * stride + blocksize * ((x & ~0x03) << 2);
> - break;
> - case ETNA_LAYOUT_MULTI_SUPERTILED:
> - y >>= 1;
> - /* fall-through */
> - case ETNA_LAYOUT_SUPER_TILED:
> - assert(!(x & 0x3f) && !(y & 0x3f));
> - offset = (y & ~0x3f) * stride + blocksize * ((x & ~0x3f) << 6);
> - break;
> - default:
> - unreachable("invalid resource layout");
> - }
> -
> - return offset;
> -}
> -
> -static inline void
> -etna_get_rs_alignment_mask(const struct etna_context *ctx,
> - const enum etna_surface_layout layout,
> - unsigned int *width_mask, unsigned int *height_mask)
> -{
> - unsigned int h_align, w_align;
> -
> - if (layout & ETNA_LAYOUT_BIT_SUPER) {
> - w_align = h_align = 64;
> - } else {
> - w_align = ETNA_RS_WIDTH_MASK + 1;
> - h_align = ETNA_RS_HEIGHT_MASK + 1;
> - }
> -
> - h_align *= ctx->screen->specs.pixel_pipes;
> -
> - *width_mask = w_align - 1;
> - *height_mask = h_align -1;
> -}
> -
> -static bool
> -etna_try_rs_blit(struct pipe_context *pctx,
> - const struct pipe_blit_info *blit_info)
> -{
> - struct etna_context *ctx = etna_context(pctx);
> - struct etna_resource *src = etna_resource(blit_info->src.resource);
> - struct etna_resource *dst = etna_resource(blit_info->dst.resource);
> - struct compiled_rs_state copy_to_screen;
> - uint32_t ts_mem_config = 0;
> - int msaa_xscale = 1, msaa_yscale = 1;
> -
> - /* Ensure that the level is valid */
> - assert(blit_info->src.level <= src->base.last_level);
> - assert(blit_info->dst.level <= dst->base.last_level);
> -
> - if (!translate_samples_to_xyscale(src->base.nr_samples, &msaa_xscale, &msaa_yscale, NULL))
> - return FALSE;
> -
> - /* The width/height are in pixels; they do not change as a result of
> - * multi-sampling. So, when blitting from a 4x multisampled surface
> - * to a non-multisampled surface, the width and height will be
> - * identical. As we do not support scaling, reject different sizes. */
> - if (blit_info->dst.box.width != blit_info->src.box.width ||
> - blit_info->dst.box.height != blit_info->src.box.height) {
> - DBG("scaling requested: source %dx%d destination %dx%d",
> - blit_info->src.box.width, blit_info->src.box.height,
> - blit_info->dst.box.width, blit_info->dst.box.height);
> - return FALSE;
> - }
> -
> - /* No masks - RS can't copy specific channels */
> - unsigned mask = util_format_get_mask(blit_info->dst.format);
> - if ((blit_info->mask & mask) != mask) {
> - DBG("sub-mask requested: 0x%02x vs format mask 0x%02x", blit_info->mask, mask);
> - return FALSE;
> - }
> -
> - unsigned src_format = etna_compatible_rs_format(blit_info->src.format);
> - unsigned dst_format = etna_compatible_rs_format(blit_info->dst.format);
> - if (translate_rs_format(src_format) == ETNA_NO_MATCH ||
> - translate_rs_format(dst_format) == ETNA_NO_MATCH ||
> - blit_info->scissor_enable ||
> - blit_info->dst.box.depth != blit_info->src.box.depth ||
> - blit_info->dst.box.depth != 1) {
> - return FALSE;
> - }
> -
> - unsigned w_mask, h_mask;
> -
> - etna_get_rs_alignment_mask(ctx, src->layout, &w_mask, &h_mask);
> - if ((blit_info->src.box.x & w_mask) || (blit_info->src.box.y & h_mask))
> - return FALSE;
> -
> - etna_get_rs_alignment_mask(ctx, dst->layout, &w_mask, &h_mask);
> - if ((blit_info->dst.box.x & w_mask) || (blit_info->dst.box.y & h_mask))
> - return FALSE;
> -
> - /* Ensure that the Z coordinate is sane */
> - if (dst->base.target != PIPE_TEXTURE_CUBE)
> - assert(blit_info->dst.box.z == 0);
> - if (src->base.target != PIPE_TEXTURE_CUBE)
> - assert(blit_info->src.box.z == 0);
> -
> - assert(blit_info->src.box.z < src->base.array_size);
> - assert(blit_info->dst.box.z < dst->base.array_size);
> -
> - struct etna_resource_level *src_lev = &src->levels[blit_info->src.level];
> - struct etna_resource_level *dst_lev = &dst->levels[blit_info->dst.level];
> -
> - /* we may be given coordinates up to the padded width to avoid
> - * any alignment issues with different tiling formats */
> - assert((blit_info->src.box.x + blit_info->src.box.width) * msaa_xscale <= src_lev->padded_width);
> - assert((blit_info->src.box.y + blit_info->src.box.height) * msaa_yscale <= src_lev->padded_height);
> - assert(blit_info->dst.box.x + blit_info->dst.box.width <= dst_lev->padded_width);
> - assert(blit_info->dst.box.y + blit_info->dst.box.height <= dst_lev->padded_height);
> -
> - unsigned src_offset = src_lev->offset +
> - blit_info->src.box.z * src_lev->layer_stride +
> - etna_compute_tileoffset(&blit_info->src.box,
> - blit_info->src.format,
> - src_lev->stride,
> - src->layout);
> - unsigned dst_offset = dst_lev->offset +
> - blit_info->dst.box.z * dst_lev->layer_stride +
> - etna_compute_tileoffset(&blit_info->dst.box,
> - blit_info->dst.format,
> - dst_lev->stride,
> - dst->layout);
> -
> - if (src_lev->padded_width <= ETNA_RS_WIDTH_MASK ||
> - dst_lev->padded_width <= ETNA_RS_WIDTH_MASK ||
> - src_lev->padded_height <= ETNA_RS_HEIGHT_MASK ||
> - dst_lev->padded_height <= ETNA_RS_HEIGHT_MASK)
> - goto manual;
> -
> - /* If the width is not aligned to the RS width, but is within our
> - * padding, adjust the width to suite the RS width restriction.
> - * Note: the RS width/height are converted to source samples here. */
> - unsigned int width = blit_info->src.box.width * msaa_xscale;
> - unsigned int height = blit_info->src.box.height * msaa_yscale;
> - unsigned int w_align = ETNA_RS_WIDTH_MASK + 1;
> - unsigned int h_align = (ETNA_RS_HEIGHT_MASK + 1) * ctx->specs.pixel_pipes;
> -
> - if (width & (w_align - 1) && width >= src_lev->width * msaa_xscale && width >= dst_lev->width)
> - width = align(width, w_align);
> -
> - if (height & (h_align - 1) && height >= src_lev->height * msaa_yscale && height >= dst_lev->height)
> - height = align(height, h_align);
> -
> - /* The padded dimensions are in samples */
> - if (width > src_lev->padded_width ||
> - width > dst_lev->padded_width * msaa_xscale ||
> - height > src_lev->padded_height ||
> - height > dst_lev->padded_height * msaa_yscale ||
> - width & (w_align - 1) || height & (h_align - 1))
> - goto manual;
> -
> - if (src->base.nr_samples > 1) {
> - uint32_t msaa_format = translate_msaa_format(src_format);
> - assert(msaa_format != ETNA_NO_MATCH);
> - ts_mem_config |= VIVS_TS_MEM_CONFIG_COLOR_COMPRESSION | msaa_format;
> - }
> -
> - /* Always flush color and depth cache together before resolving. This works
> - * around artifacts that appear in some cases when scanning out a texture
> - * directly after it has been rendered to, such as rendering an animated web
> - * page in a QtWebEngine based WebView on GC2000. The artifacts look like
> - * the texture sampler samples zeroes instead of texture data in a small,
> - * irregular triangle in the lower right of each browser tile quad. Other
> - * attempts to avoid these artifacts, including a pipeline stall before the
> - * color flush or a TS cache flush afterwards, or flushing multiple times,
> - * with stalls before and after each flush, have shown no effect. */
> - if (src->base.bind & PIPE_BIND_RENDER_TARGET ||
> - src->base.bind & PIPE_BIND_DEPTH_STENCIL) {
> - etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE,
> - VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> - etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> -
> - if (src->levels[blit_info->src.level].ts_size &&
> - src->levels[blit_info->src.level].ts_valid)
> - etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
> - }
> -
> - /* Set up color TS to source surface before blit, if needed */
> - if (src->levels[blit_info->src.level].ts_size &&
> - src->levels[blit_info->src.level].ts_valid) {
> - struct etna_reloc reloc;
> - unsigned ts_offset =
> - src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
> -
> - etna_set_state(ctx->stream, VIVS_TS_MEM_CONFIG,
> - VIVS_TS_MEM_CONFIG_COLOR_FAST_CLEAR | ts_mem_config);
> -
> - memset(&reloc, 0, sizeof(struct etna_reloc));
> - reloc.bo = src->ts_bo;
> - reloc.offset = ts_offset;
> - reloc.flags = ETNA_RELOC_READ;
> - etna_set_state_reloc(ctx->stream, VIVS_TS_COLOR_STATUS_BASE, &reloc);
> -
> - memset(&reloc, 0, sizeof(struct etna_reloc));
> - reloc.bo = src->bo;
> - reloc.offset = src_lev->offset +
> - blit_info->src.box.z * src_lev->layer_stride;
> - reloc.flags = ETNA_RELOC_READ;
> - etna_set_state_reloc(ctx->stream, VIVS_TS_COLOR_SURFACE_BASE, &reloc);
> -
> - etna_set_state(ctx->stream, VIVS_TS_COLOR_CLEAR_VALUE,
> - src->levels[blit_info->src.level].clear_value);
> - } else {
> - etna_set_state(ctx->stream, VIVS_TS_MEM_CONFIG, ts_mem_config);
> - }
> - ctx->dirty |= ETNA_DIRTY_TS;
> -
> - /* Kick off RS here */
> - etna_compile_rs_state(ctx, ©_to_screen, &(struct rs_state) {
> - .source_format = translate_rs_format(src_format),
> - .source_tiling = src->layout,
> - .source = src->bo,
> - .source_offset = src_offset,
> - .source_stride = src_lev->stride,
> - .source_padded_width = src_lev->padded_width,
> - .source_padded_height = src_lev->padded_height,
> - .dest_format = translate_rs_format(dst_format),
> - .dest_tiling = dst->layout,
> - .dest = dst->bo,
> - .dest_offset = dst_offset,
> - .dest_stride = dst_lev->stride,
> - .dest_padded_height = dst_lev->padded_height,
> - .downsample_x = msaa_xscale > 1,
> - .downsample_y = msaa_yscale > 1,
> - .swap_rb = translate_rb_src_dst_swap(src->base.format, dst->base.format),
> - .dither = {0xffffffff, 0xffffffff}, // XXX dither when going from 24 to 16 bit?
> - .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_DISABLED,
> - .width = width,
> - .height = height
> - });
> -
> - etna_submit_rs_state(ctx, ©_to_screen);
> - resource_written(ctx, &dst->base);
> - dst->seqno++;
> - dst->levels[blit_info->dst.level].ts_valid = false;
> - ctx->dirty |= ETNA_DIRTY_DERIVE_TS;
> -
> - return TRUE;
> -
> -manual:
> - if (src->layout == ETNA_LAYOUT_TILED && dst->layout == ETNA_LAYOUT_TILED) {
> - if ((src->status & ETNA_PENDING_WRITE) ||
> - (dst->status & ETNA_PENDING_WRITE))
> - pctx->flush(pctx, NULL, 0);
> - return etna_manual_blit(dst, dst_lev, dst_offset, src, src_lev, src_offset, blit_info);
> - }
> -
> - return FALSE;
> -}
> -
> -static void
> -etna_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
> -{
> - /* This is a more extended version of resource_copy_region */
> - /* TODO Some cases can be handled by RS; if not, fall back to rendering or
> - * even CPU copy block of pixels from info->src to info->dst
> - * (resource, level, box, format);
> - * function is used for scaling, flipping in x and y direction (negative
> - * width/height), format conversion, mask and filter and even a scissor rectangle
> - *
> - * What can the RS do for us:
> - * convert between tiling formats (layouts)
> - * downsample 2x in x and y
> - * convert between a limited number of pixel formats
> - *
> - * For the rest, fall back to util_blitter
> - * XXX this goes wrong when source surface is supertiled. */
> - struct etna_context *ctx = etna_context(pctx);
> - struct pipe_blit_info info = *blit_info;
> -
> - if (info.src.resource->nr_samples > 1 &&
> - info.dst.resource->nr_samples <= 1 &&
> - !util_format_is_depth_or_stencil(info.src.resource->format) &&
> - !util_format_is_pure_integer(info.src.resource->format)) {
> - DBG("color resolve unimplemented");
> - return;
> - }
> -
> - if (etna_try_rs_blit(pctx, blit_info))
> - return;
> -
> - if (util_try_blit_via_copy_region(pctx, blit_info))
> - return;
> -
> - if (info.mask & PIPE_MASK_S) {
> - DBG("cannot blit stencil, skipping");
> - info.mask &= ~PIPE_MASK_S;
> - }
> -
> - if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
> - DBG("blit unsupported %s -> %s",
> - util_format_short_name(info.src.resource->format),
> - util_format_short_name(info.dst.resource->format));
> - return;
> - }
> -
> - etna_blit_save_state(ctx);
> - util_blitter_blit(ctx->blitter, &info);
> -}
> -
> static void
> etna_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
> {
> @@ -758,10 +215,10 @@ etna_copy_resource_box(struct pipe_context *pctx, struct pipe_resource *dst,
> void
> etna_clear_blit_init(struct pipe_context *pctx)
> {
> - pctx->clear = etna_clear;
> pctx->clear_render_target = etna_clear_render_target;
> pctx->clear_depth_stencil = etna_clear_depth_stencil;
> pctx->resource_copy_region = etna_resource_copy_region;
> - pctx->blit = etna_blit;
> pctx->flush_resource = etna_flush_resource;
> +
> + etna_clear_blit_rs_init(pctx);
> }
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h
> index 9bba623..7f84d2e 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h
> @@ -48,6 +48,15 @@ etna_copy_resource_box(struct pipe_context *pctx, struct pipe_resource *dst,
> struct pipe_box *box);
>
> void
> +etna_blit_save_state(struct etna_context *ctx);
> +
> +uint32_t
> +etna_clear_blit_pack_rgba(enum pipe_format format, const float *rgba);
> +
> +void
> etna_clear_blit_init(struct pipe_context *pctx);
>
> +void
> +etna_clear_blit_rs_init(struct pipe_context *pctx);
> +
> #endif
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit_rs.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit_rs.c
> new file mode 100644
> index 0000000..c3cc394
> --- /dev/null
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit_rs.c
> @@ -0,0 +1,595 @@
> +/*
> + * Copyright (c) 2012-2015 Etnaviv Project
> + *
> + * 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, 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 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:
> + * Wladimir J. van der Laan <laanwj at gmail.com>
> + */
> +
> +#include "etnaviv_clear_blit.h"
> +
> +#include "hw/common.xml.h"
> +
> +#include "etnaviv_context.h"
> +#include "etnaviv_emit.h"
> +#include "etnaviv_format.h"
> +#include "etnaviv_resource.h"
> +#include "etnaviv_surface.h"
> +#include "etnaviv_translate.h"
> +
> +#include "pipe/p_defines.h"
> +#include "pipe/p_state.h"
> +#include "util/u_blitter.h"
> +#include "util/u_inlines.h"
> +#include "util/u_memory.h"
> +#include "util/u_surface.h"
> +
> +/* Generate clear command for a surface (non-fast clear case) */
> +void
> +etna_rs_gen_clear_surface(struct etna_context *ctx, struct etna_surface *surf,
> + uint32_t clear_value)
> +{
> + struct etna_resource *dst = etna_resource(surf->base.texture);
> + uint32_t format = translate_rs_format(surf->base.format);
> +
> + if (format == ETNA_NO_MATCH) {
> + BUG("etna_rs_gen_clear_surface: Unhandled clear fmt %s", util_format_name(surf->base.format));
> + format = RS_FORMAT_A8R8G8B8;
> + assert(0);
> + }
> +
> + /* use tiled clear if width is multiple of 16 */
> + bool tiled_clear = (surf->surf.padded_width & ETNA_RS_WIDTH_MASK) == 0 &&
> + (surf->surf.padded_height & ETNA_RS_HEIGHT_MASK) == 0;
> +
> + etna_compile_rs_state( ctx, &surf->clear_command, &(struct rs_state) {
> + .source_format = format,
> + .dest_format = format,
> + .dest = dst->bo,
> + .dest_offset = surf->surf.offset,
> + .dest_stride = surf->surf.stride,
> + .dest_padded_height = surf->surf.padded_height,
> + .dest_tiling = tiled_clear ? dst->layout : ETNA_LAYOUT_LINEAR,
> + .dither = {0xffffffff, 0xffffffff},
> + .width = surf->surf.padded_width, /* These must be padded to 16x4 if !LINEAR, otherwise RS will hang */
> + .height = surf->surf.padded_height,
> + .clear_value = {clear_value},
> + .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_ENABLED1,
> + .clear_bits = 0xffff
> + });
> +}
> +
> +static void
> +etna_blit_clear_color_rs(struct pipe_context *pctx, struct pipe_surface *dst,
> + const union pipe_color_union *color)
> +{
> + struct etna_context *ctx = etna_context(pctx);
> + struct etna_surface *surf = etna_surface(dst);
> + uint32_t new_clear_value = etna_clear_blit_pack_rgba(surf->base.format, color->f);
> +
> + if (surf->surf.ts_size) { /* TS: use precompiled clear command */
> + ctx->framebuffer.TS_COLOR_CLEAR_VALUE = new_clear_value;
> +
> + if (VIV_FEATURE(ctx->screen, chipMinorFeatures1, AUTO_DISABLE)) {
> + /* Set number of color tiles to be filled */
> + etna_set_state(ctx->stream, VIVS_TS_COLOR_AUTO_DISABLE_COUNT,
> + surf->surf.padded_width * surf->surf.padded_height / 16);
> + ctx->framebuffer.TS_MEM_CONFIG |= VIVS_TS_MEM_CONFIG_COLOR_AUTO_DISABLE;
> + }
> +
> + surf->level->ts_valid = true;
> + ctx->dirty |= ETNA_DIRTY_TS | ETNA_DIRTY_DERIVE_TS;
> + } else if (unlikely(new_clear_value != surf->level->clear_value)) { /* Queue normal RS clear for non-TS surfaces */
> + /* If clear color changed, re-generate stored command */
> + etna_rs_gen_clear_surface(ctx, surf, new_clear_value);
> + }
> +
> + etna_submit_rs_state(ctx, &surf->clear_command);
> +
> + surf->level->clear_value = new_clear_value;
> + resource_written(ctx, surf->base.texture);
> + etna_resource(surf->base.texture)->seqno++;
> +}
> +
> +static void
> +etna_blit_clear_zs_rs(struct pipe_context *pctx, struct pipe_surface *dst,
> + unsigned buffers, double depth, unsigned stencil)
> +{
> + struct etna_context *ctx = etna_context(pctx);
> + struct etna_surface *surf = etna_surface(dst);
> + uint32_t new_clear_value = translate_clear_depth_stencil(surf->base.format, depth, stencil);
> + uint32_t new_clear_bits = 0, clear_bits_depth, clear_bits_stencil;
> +
> + /* Get the channels to clear */
> + switch (surf->base.format) {
> + case PIPE_FORMAT_Z16_UNORM:
> + clear_bits_depth = 0xffff;
> + clear_bits_stencil = 0;
> + break;
> + case PIPE_FORMAT_X8Z24_UNORM:
> + case PIPE_FORMAT_S8_UINT_Z24_UNORM:
> + clear_bits_depth = 0xeeee;
> + clear_bits_stencil = 0x1111;
> + break;
> + default:
> + clear_bits_depth = clear_bits_stencil = 0xffff;
> + break;
> + }
> +
> + if (buffers & PIPE_CLEAR_DEPTH)
> + new_clear_bits |= clear_bits_depth;
> + if (buffers & PIPE_CLEAR_STENCIL)
> + new_clear_bits |= clear_bits_stencil;
> + /* FIXME: when tile status is enabled, this becomes more complex as
> + * we may separately clear the depth from the stencil. In this case,
> + * we want to resolve the surface, and avoid using the tile status.
> + * We may be better off recording the pending clear operation,
> + * delaying the actual clear to the first use. This way, we can merge
> + * consecutive clears together. */
> + if (surf->surf.ts_size) { /* TS: use precompiled clear command */
> + /* Set new clear depth value */
> + ctx->framebuffer.TS_DEPTH_CLEAR_VALUE = new_clear_value;
> + if (VIV_FEATURE(ctx->screen, chipMinorFeatures1, AUTO_DISABLE)) {
> + /* Set number of depth tiles to be filled */
> + etna_set_state(ctx->stream, VIVS_TS_DEPTH_AUTO_DISABLE_COUNT,
> + surf->surf.padded_width * surf->surf.padded_height / 16);
> + ctx->framebuffer.TS_MEM_CONFIG |= VIVS_TS_MEM_CONFIG_DEPTH_AUTO_DISABLE;
> + }
> +
> + surf->level->ts_valid = true;
> + ctx->dirty |= ETNA_DIRTY_TS | ETNA_DIRTY_DERIVE_TS;
> + } else {
> + if (unlikely(new_clear_value != surf->level->clear_value)) { /* Queue normal RS clear for non-TS surfaces */
> + /* If clear depth value changed, re-generate stored command */
> + etna_rs_gen_clear_surface(ctx, surf, new_clear_value);
> + }
> + /* Update the channels to be cleared */
> + etna_modify_rs_clearbits(&surf->clear_command, new_clear_bits);
> + }
> +
> + etna_submit_rs_state(ctx, &surf->clear_command);
> +
> + surf->level->clear_value = new_clear_value;
> + resource_written(ctx, surf->base.texture);
> + etna_resource(surf->base.texture)->seqno++;
> +}
> +
> +static void
> +etna_clear_rs(struct pipe_context *pctx, unsigned buffers,
> + const union pipe_color_union *color, double depth, unsigned stencil)
> +{
> + struct etna_context *ctx = etna_context(pctx);
> +
> + /* Flush color and depth cache before clearing anything.
> + * This is especially important when coming from another surface, as
> + * otherwise it may clear part of the old surface instead. */
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> + etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> +
> + /* Preparation: Flush the TS if needed. This must be done after flushing
> + * color and depth, otherwise it can result in crashes */
> + bool need_ts_flush = false;
> + if ((buffers & PIPE_CLEAR_COLOR) && ctx->framebuffer_s.nr_cbufs) {
> + struct etna_surface *surf = etna_surface(ctx->framebuffer_s.cbufs[0]);
> + if (surf->surf.ts_size)
> + need_ts_flush = true;
> + }
> + if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL) {
> + struct etna_surface *surf = etna_surface(ctx->framebuffer_s.zsbuf);
> +
> + if (surf->surf.ts_size)
> + need_ts_flush = true;
> + }
> +
> + if (need_ts_flush)
> + etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
> +
> + /* No need to set up the TS here as RS clear operations (in contrast to
> + * resolve and copy) do not require the TS state.
> + */
> + if (buffers & PIPE_CLEAR_COLOR) {
> + for (int idx = 0; idx < ctx->framebuffer_s.nr_cbufs; ++idx) {
> + etna_blit_clear_color_rs(pctx, ctx->framebuffer_s.cbufs[idx],
> + &color[idx]);
> + }
> + }
> +
> + /* Flush the color and depth caches before each RS clear operation
> + * This fixes a hang on GC600. */
> + if (buffers & PIPE_CLEAR_DEPTHSTENCIL && buffers & PIPE_CLEAR_COLOR)
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE,
> + VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> +
> + if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL)
> + etna_blit_clear_zs_rs(pctx, ctx->framebuffer_s.zsbuf, buffers, depth, stencil);
> +
> + etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> +}
> +
> +static bool
> +etna_manual_blit(struct etna_resource *dst, struct etna_resource_level *dst_lev,
> + unsigned int dst_offset, struct etna_resource *src,
> + struct etna_resource_level *src_lev, unsigned int src_offset,
> + const struct pipe_blit_info *blit_info)
> +{
> + void *smap, *srow, *dmap, *drow;
> + size_t tile_size;
> +
> + assert(src->layout == ETNA_LAYOUT_TILED);
> + assert(dst->layout == ETNA_LAYOUT_TILED);
> + assert(src->base.nr_samples == 0);
> + assert(dst->base.nr_samples == 0);
> +
> + tile_size = util_format_get_blocksize(blit_info->src.format) * 4 * 4;
> +
> + smap = etna_bo_map(src->bo);
> + if (!smap)
> + return false;
> +
> + dmap = etna_bo_map(dst->bo);
> + if (!dmap)
> + return false;
> +
> + srow = smap + src_offset;
> + drow = dmap + dst_offset;
> +
> + etna_bo_cpu_prep(src->bo, DRM_ETNA_PREP_READ);
> + etna_bo_cpu_prep(dst->bo, DRM_ETNA_PREP_WRITE);
> +
> + for (int y = 0; y < blit_info->src.box.height; y += 4) {
> + memcpy(drow, srow, tile_size * blit_info->src.box.width);
> + srow += src_lev->stride * 4;
> + drow += dst_lev->stride * 4;
> + }
> +
> + etna_bo_cpu_fini(dst->bo);
> + etna_bo_cpu_fini(src->bo);
> +
> + return true;
> +}
> +
> +static inline size_t
> +etna_compute_tileoffset(const struct pipe_box *box, enum pipe_format format,
> + size_t stride, enum etna_surface_layout layout)
> +{
> + size_t offset;
> + unsigned int x = box->x, y = box->y;
> + unsigned int blocksize = util_format_get_blocksize(format);
> +
> + switch (layout) {
> + case ETNA_LAYOUT_LINEAR:
> + offset = y * stride + x * blocksize;
> + break;
> + case ETNA_LAYOUT_MULTI_TILED:
> + y >>= 1;
> + /* fall-through */
> + case ETNA_LAYOUT_TILED:
> + assert(!(x & 0x03) && !(y & 0x03));
> + offset = (y & ~0x03) * stride + blocksize * ((x & ~0x03) << 2);
> + break;
> + case ETNA_LAYOUT_MULTI_SUPERTILED:
> + y >>= 1;
> + /* fall-through */
> + case ETNA_LAYOUT_SUPER_TILED:
> + assert(!(x & 0x3f) && !(y & 0x3f));
> + offset = (y & ~0x3f) * stride + blocksize * ((x & ~0x3f) << 6);
> + break;
> + default:
> + unreachable("invalid resource layout");
> + }
> +
> + return offset;
> +}
> +
> +static inline void
> +etna_get_rs_alignment_mask(const struct etna_context *ctx,
> + const enum etna_surface_layout layout,
> + unsigned int *width_mask, unsigned int *height_mask)
> +{
> + unsigned int h_align, w_align;
> +
> + if (layout & ETNA_LAYOUT_BIT_SUPER) {
> + w_align = h_align = 64;
> + } else {
> + w_align = ETNA_RS_WIDTH_MASK + 1;
> + h_align = ETNA_RS_HEIGHT_MASK + 1;
> + }
> +
> + h_align *= ctx->screen->specs.pixel_pipes;
> +
> + *width_mask = w_align - 1;
> + *height_mask = h_align -1;
> +}
> +
> +static bool
> +etna_try_rs_blit(struct pipe_context *pctx,
> + const struct pipe_blit_info *blit_info)
> +{
> + struct etna_context *ctx = etna_context(pctx);
> + struct etna_resource *src = etna_resource(blit_info->src.resource);
> + struct etna_resource *dst = etna_resource(blit_info->dst.resource);
> + struct compiled_rs_state copy_to_screen;
> + uint32_t ts_mem_config = 0;
> + int msaa_xscale = 1, msaa_yscale = 1;
> +
> + /* Ensure that the level is valid */
> + assert(blit_info->src.level <= src->base.last_level);
> + assert(blit_info->dst.level <= dst->base.last_level);
> +
> + if (!translate_samples_to_xyscale(src->base.nr_samples, &msaa_xscale, &msaa_yscale, NULL))
> + return FALSE;
> +
> + /* The width/height are in pixels; they do not change as a result of
> + * multi-sampling. So, when blitting from a 4x multisampled surface
> + * to a non-multisampled surface, the width and height will be
> + * identical. As we do not support scaling, reject different sizes. */
> + if (blit_info->dst.box.width != blit_info->src.box.width ||
> + blit_info->dst.box.height != blit_info->src.box.height) {
> + DBG("scaling requested: source %dx%d destination %dx%d",
> + blit_info->src.box.width, blit_info->src.box.height,
> + blit_info->dst.box.width, blit_info->dst.box.height);
> + return FALSE;
> + }
> +
> + /* No masks - RS can't copy specific channels */
> + unsigned mask = util_format_get_mask(blit_info->dst.format);
> + if ((blit_info->mask & mask) != mask) {
> + DBG("sub-mask requested: 0x%02x vs format mask 0x%02x", blit_info->mask, mask);
> + return FALSE;
> + }
> +
> + unsigned src_format = etna_compatible_rs_format(blit_info->src.format);
> + unsigned dst_format = etna_compatible_rs_format(blit_info->dst.format);
> + if (translate_rs_format(src_format) == ETNA_NO_MATCH ||
> + translate_rs_format(dst_format) == ETNA_NO_MATCH ||
> + blit_info->scissor_enable ||
> + blit_info->dst.box.depth != blit_info->src.box.depth ||
> + blit_info->dst.box.depth != 1) {
> + return FALSE;
> + }
> +
> + unsigned w_mask, h_mask;
> +
> + etna_get_rs_alignment_mask(ctx, src->layout, &w_mask, &h_mask);
> + if ((blit_info->src.box.x & w_mask) || (blit_info->src.box.y & h_mask))
> + return FALSE;
> +
> + etna_get_rs_alignment_mask(ctx, dst->layout, &w_mask, &h_mask);
> + if ((blit_info->dst.box.x & w_mask) || (blit_info->dst.box.y & h_mask))
> + return FALSE;
> +
> + /* Ensure that the Z coordinate is sane */
> + if (dst->base.target != PIPE_TEXTURE_CUBE)
> + assert(blit_info->dst.box.z == 0);
> + if (src->base.target != PIPE_TEXTURE_CUBE)
> + assert(blit_info->src.box.z == 0);
> +
> + assert(blit_info->src.box.z < src->base.array_size);
> + assert(blit_info->dst.box.z < dst->base.array_size);
> +
> + struct etna_resource_level *src_lev = &src->levels[blit_info->src.level];
> + struct etna_resource_level *dst_lev = &dst->levels[blit_info->dst.level];
> +
> + /* we may be given coordinates up to the padded width to avoid
> + * any alignment issues with different tiling formats */
> + assert((blit_info->src.box.x + blit_info->src.box.width) * msaa_xscale <= src_lev->padded_width);
> + assert((blit_info->src.box.y + blit_info->src.box.height) * msaa_yscale <= src_lev->padded_height);
> + assert(blit_info->dst.box.x + blit_info->dst.box.width <= dst_lev->padded_width);
> + assert(blit_info->dst.box.y + blit_info->dst.box.height <= dst_lev->padded_height);
> +
> + unsigned src_offset = src_lev->offset +
> + blit_info->src.box.z * src_lev->layer_stride +
> + etna_compute_tileoffset(&blit_info->src.box,
> + blit_info->src.format,
> + src_lev->stride,
> + src->layout);
> + unsigned dst_offset = dst_lev->offset +
> + blit_info->dst.box.z * dst_lev->layer_stride +
> + etna_compute_tileoffset(&blit_info->dst.box,
> + blit_info->dst.format,
> + dst_lev->stride,
> + dst->layout);
> +
> + if (src_lev->padded_width <= ETNA_RS_WIDTH_MASK ||
> + dst_lev->padded_width <= ETNA_RS_WIDTH_MASK ||
> + src_lev->padded_height <= ETNA_RS_HEIGHT_MASK ||
> + dst_lev->padded_height <= ETNA_RS_HEIGHT_MASK)
> + goto manual;
> +
> + /* If the width is not aligned to the RS width, but is within our
> + * padding, adjust the width to suite the RS width restriction.
> + * Note: the RS width/height are converted to source samples here. */
> + unsigned int width = blit_info->src.box.width * msaa_xscale;
> + unsigned int height = blit_info->src.box.height * msaa_yscale;
> + unsigned int w_align = ETNA_RS_WIDTH_MASK + 1;
> + unsigned int h_align = (ETNA_RS_HEIGHT_MASK + 1) * ctx->specs.pixel_pipes;
> +
> + if (width & (w_align - 1) && width >= src_lev->width * msaa_xscale && width >= dst_lev->width)
> + width = align(width, w_align);
> +
> + if (height & (h_align - 1) && height >= src_lev->height * msaa_yscale && height >= dst_lev->height)
> + height = align(height, h_align);
> +
> + /* The padded dimensions are in samples */
> + if (width > src_lev->padded_width ||
> + width > dst_lev->padded_width * msaa_xscale ||
> + height > src_lev->padded_height ||
> + height > dst_lev->padded_height * msaa_yscale ||
> + width & (w_align - 1) || height & (h_align - 1))
> + goto manual;
> +
> + if (src->base.nr_samples > 1) {
> + uint32_t msaa_format = translate_msaa_format(src_format);
> + assert(msaa_format != ETNA_NO_MATCH);
> + ts_mem_config |= VIVS_TS_MEM_CONFIG_COLOR_COMPRESSION | msaa_format;
> + }
> +
> + /* Always flush color and depth cache together before resolving. This works
> + * around artifacts that appear in some cases when scanning out a texture
> + * directly after it has been rendered to, such as rendering an animated web
> + * page in a QtWebEngine based WebView on GC2000. The artifacts look like
> + * the texture sampler samples zeroes instead of texture data in a small,
> + * irregular triangle in the lower right of each browser tile quad. Other
> + * attempts to avoid these artifacts, including a pipeline stall before the
> + * color flush or a TS cache flush afterwards, or flushing multiple times,
> + * with stalls before and after each flush, have shown no effect. */
> + if (src->base.bind & PIPE_BIND_RENDER_TARGET ||
> + src->base.bind & PIPE_BIND_DEPTH_STENCIL) {
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE,
> + VIVS_GL_FLUSH_CACHE_COLOR | VIVS_GL_FLUSH_CACHE_DEPTH);
> + etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_PE);
> +
> + if (src->levels[blit_info->src.level].ts_size &&
> + src->levels[blit_info->src.level].ts_valid)
> + etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
> + }
> +
> + /* Set up color TS to source surface before blit, if needed */
> + if (src->levels[blit_info->src.level].ts_size &&
> + src->levels[blit_info->src.level].ts_valid) {
> + struct etna_reloc reloc;
> + unsigned ts_offset =
> + src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
> +
> + etna_set_state(ctx->stream, VIVS_TS_MEM_CONFIG,
> + VIVS_TS_MEM_CONFIG_COLOR_FAST_CLEAR | ts_mem_config);
> +
> + memset(&reloc, 0, sizeof(struct etna_reloc));
> + reloc.bo = src->ts_bo;
> + reloc.offset = ts_offset;
> + reloc.flags = ETNA_RELOC_READ;
> + etna_set_state_reloc(ctx->stream, VIVS_TS_COLOR_STATUS_BASE, &reloc);
> +
> + memset(&reloc, 0, sizeof(struct etna_reloc));
> + reloc.bo = src->bo;
> + reloc.offset = src_lev->offset +
> + blit_info->src.box.z * src_lev->layer_stride;
> + reloc.flags = ETNA_RELOC_READ;
> + etna_set_state_reloc(ctx->stream, VIVS_TS_COLOR_SURFACE_BASE, &reloc);
> +
> + etna_set_state(ctx->stream, VIVS_TS_COLOR_CLEAR_VALUE,
> + src->levels[blit_info->src.level].clear_value);
> + } else {
> + etna_set_state(ctx->stream, VIVS_TS_MEM_CONFIG, ts_mem_config);
> + }
> + ctx->dirty |= ETNA_DIRTY_TS;
> +
> + /* Kick off RS here */
> + etna_compile_rs_state(ctx, ©_to_screen, &(struct rs_state) {
> + .source_format = translate_rs_format(src_format),
> + .source_tiling = src->layout,
> + .source = src->bo,
> + .source_offset = src_offset,
> + .source_stride = src_lev->stride,
> + .source_padded_width = src_lev->padded_width,
> + .source_padded_height = src_lev->padded_height,
> + .dest_format = translate_rs_format(dst_format),
> + .dest_tiling = dst->layout,
> + .dest = dst->bo,
> + .dest_offset = dst_offset,
> + .dest_stride = dst_lev->stride,
> + .dest_padded_height = dst_lev->padded_height,
> + .downsample_x = msaa_xscale > 1,
> + .downsample_y = msaa_yscale > 1,
> + .swap_rb = translate_rb_src_dst_swap(src->base.format, dst->base.format),
> + .dither = {0xffffffff, 0xffffffff}, // XXX dither when going from 24 to 16 bit?
> + .clear_mode = VIVS_RS_CLEAR_CONTROL_MODE_DISABLED,
> + .width = width,
> + .height = height
> + });
> +
> + etna_submit_rs_state(ctx, ©_to_screen);
> + resource_written(ctx, &dst->base);
> + dst->seqno++;
> + dst->levels[blit_info->dst.level].ts_valid = false;
> + ctx->dirty |= ETNA_DIRTY_DERIVE_TS;
> +
> + return TRUE;
> +
> +manual:
> + if (src->layout == ETNA_LAYOUT_TILED && dst->layout == ETNA_LAYOUT_TILED) {
> + if ((src->status & ETNA_PENDING_WRITE) ||
> + (dst->status & ETNA_PENDING_WRITE))
> + pctx->flush(pctx, NULL, 0);
> + return etna_manual_blit(dst, dst_lev, dst_offset, src, src_lev, src_offset, blit_info);
> + }
> +
> + return FALSE;
> +}
> +
> +static void
> +etna_blit_rs(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
> +{
> + /* This is a more extended version of resource_copy_region */
> + /* TODO Some cases can be handled by RS; if not, fall back to rendering or
> + * even CPU copy block of pixels from info->src to info->dst
> + * (resource, level, box, format);
> + * function is used for scaling, flipping in x and y direction (negative
> + * width/height), format conversion, mask and filter and even a scissor rectangle
> + *
> + * What can the RS do for us:
> + * convert between tiling formats (layouts)
> + * downsample 2x in x and y
> + * convert between a limited number of pixel formats
> + *
> + * For the rest, fall back to util_blitter
> + * XXX this goes wrong when source surface is supertiled. */
> + struct etna_context *ctx = etna_context(pctx);
> + struct pipe_blit_info info = *blit_info;
> +
> + if (info.src.resource->nr_samples > 1 &&
> + info.dst.resource->nr_samples <= 1 &&
> + !util_format_is_depth_or_stencil(info.src.resource->format) &&
> + !util_format_is_pure_integer(info.src.resource->format)) {
> + DBG("color resolve unimplemented");
> + return;
> + }
> +
> + if (etna_try_rs_blit(pctx, blit_info))
> + return;
> +
> + if (util_try_blit_via_copy_region(pctx, blit_info))
> + return;
> +
> + if (info.mask & PIPE_MASK_S) {
> + DBG("cannot blit stencil, skipping");
> + info.mask &= ~PIPE_MASK_S;
> + }
> +
> + if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
> + DBG("blit unsupported %s -> %s",
> + util_format_short_name(info.src.resource->format),
> + util_format_short_name(info.dst.resource->format));
> + return;
> + }
> +
> + etna_blit_save_state(ctx);
> + util_blitter_blit(ctx->blitter, &info);
> +}
> +
> +void
> +etna_clear_blit_rs_init(struct pipe_context *pctx)
> +{
> + DBG("etnaviv: Using RS blit engine\n");
> + pctx->clear = etna_clear_rs;
> + pctx->blit = etna_blit_rs;
> +}
> +
> --
> 2.7.4
>
--
greets
--
Christian Gmeiner, MSc
https://christian-gmeiner.info
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