[Mesa-dev] [PATCH 09/19] etnaviv: GC7000: BLT engine blitting support
Christian Gmeiner
christian.gmeiner at gmail.com
Sun Nov 5 12:22:43 UTC 2017
2017-10-30 17:16 GMT+01:00 Wladimir J. van der Laan <laanwj at gmail.com>:
> Add an implemenation of key clear_blit functions using the BLT engine
> that replaced the RS on GC7000.
>
> 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 | 7 +-
> src/gallium/drivers/etnaviv/etnaviv_clear_blit.h | 3 +
> .../drivers/etnaviv/etnaviv_clear_blit_blt.c | 412 +++++++++++++++++++++
> src/gallium/drivers/etnaviv/etnaviv_context.c | 6 +-
> src/gallium/drivers/etnaviv/etnaviv_internal.h | 2 +
> src/gallium/drivers/etnaviv/etnaviv_screen.c | 2 +
> 7 files changed, 430 insertions(+), 3 deletions(-)
> create mode 100644 src/gallium/drivers/etnaviv/etnaviv_clear_blit_blt.c
>
> diff --git a/src/gallium/drivers/etnaviv/Makefile.sources b/src/gallium/drivers/etnaviv/Makefile.sources
> index f4acaa2..56cc3b2 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_blt.c \
> etnaviv_clear_blit_rs.c \
> etnaviv_compiler.c \
> etnaviv_compiler.h \
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> index faf8f39..3b3ab00 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.c
> @@ -215,10 +215,15 @@ etna_copy_resource_box(struct pipe_context *pctx, struct pipe_resource *dst,
> void
> etna_clear_blit_init(struct pipe_context *pctx)
> {
> + struct etna_context *ctx = etna_context(pctx);
> +
> 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->flush_resource = etna_flush_resource;
>
> - etna_clear_blit_rs_init(pctx);
> + if (ctx->specs.use_blt)
> + etna_clear_blit_blt_init(pctx);
> + else
> + 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 7f84d2e..57b75e8 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit.h
> @@ -57,6 +57,9 @@ void
> etna_clear_blit_init(struct pipe_context *pctx);
>
> void
> +etna_clear_blit_blt_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_blt.c b/src/gallium/drivers/etnaviv/etnaviv_clear_blit_blt.c
> new file mode 100644
> index 0000000..e0c26cc
> --- /dev/null
> +++ b/src/gallium/drivers/etnaviv/etnaviv_clear_blit_blt.c
> @@ -0,0 +1,412 @@
> +/*
> + * Copyright (c) 2017 Etnaviv Project
> + * Copyright (C) 2017 Zodiac Inflight Innovations
> + *
> + * 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_blt.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"
> +
> +#define translate_blt_format translate_rs_format
> +
> +static void
> +etna_blit_clear_color_blt(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);
> +
> + struct etna_resource *res = etna_resource(surf->base.texture);
> + struct blt_clear_op clr = {};
> + clr.dest.addr.bo = res->bo;
> + clr.dest.addr.offset = surf->surf.offset;
> + clr.dest.addr.flags = ETNA_RELOC_WRITE;
> + clr.dest.bpp = util_format_get_blocksize(surf->base.format);
> + clr.dest.stride = surf->surf.stride;
> + /* TODO: color compression
> + clr.dest.compressed = 1;
> + clr.dest.compress_fmt = 3;
> + */
> + clr.dest.tiling = res->layout;
> + clr.dest.cache_mode = TS_CACHE_MODE_128; /* TODO: cache modes */
> +
> + if (surf->surf.ts_size) {
> + clr.dest.use_ts = 1;
> + clr.dest.ts_addr.bo = res->ts_bo;
> + clr.dest.ts_addr.offset = 0;
> + clr.dest.ts_addr.flags = ETNA_RELOC_WRITE;
> + clr.dest.ts_clear_value[0] = new_clear_value;
> + clr.dest.ts_clear_value[1] = new_clear_value;
> + }
> +
> + clr.clear_value[0] = new_clear_value;
> + clr.clear_value[1] = new_clear_value;
> + clr.clear_bits[0] = 0xffffffff; /* TODO: Might want to clear only specific channels? */
> + clr.clear_bits[1] = 0xffffffff;
> + clr.rect_x = 0; /* What about scissors? */
> + clr.rect_y = 0;
> + clr.rect_w = surf->surf.width;
> + clr.rect_h = surf->surf.height;
> +
> + emit_blt_clearimage(ctx->stream, &clr);
> +
> + /* This made the TS valid */
> + if (surf->surf.ts_size) {
> + ctx->framebuffer.TS_COLOR_CLEAR_VALUE = new_clear_value;
> + surf->level->ts_valid = true;
> + }
> +
> + 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_blt(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 = 0xffffffff;
> + clear_bits_stencil = 0x00000000;
> + break;
> + case PIPE_FORMAT_X8Z24_UNORM:
> + case PIPE_FORMAT_S8_UINT_Z24_UNORM:
> + clear_bits_depth = 0xffffff00;
> + clear_bits_stencil = 0x000000ff;
> + break;
> + default:
> + clear_bits_depth = clear_bits_stencil = 0xffffffff;
> + break;
> + }
> +
> + if (buffers & PIPE_CLEAR_DEPTH)
> + new_clear_bits |= clear_bits_depth;
> + if (buffers & PIPE_CLEAR_STENCIL)
> + new_clear_bits |= clear_bits_stencil;
> +
> + /* TODO unduplicate this */
> + struct etna_resource *res = etna_resource(surf->base.texture);
> + struct blt_clear_op clr = {};
> + clr.dest.addr.bo = res->bo;
> + clr.dest.addr.offset = surf->surf.offset;
> + clr.dest.addr.flags = ETNA_RELOC_WRITE;
> + clr.dest.bpp = util_format_get_blocksize(surf->base.format);
> + clr.dest.stride = surf->surf.stride;
> +#if 0 /* TODO depth compression */
> + clr.dest.compressed = 1;
> + clr.dest.compress_fmt = COLOR_COMPRESSION_FORMAT_D24S8;
> +#endif
> + clr.dest.tiling = res->layout;
> + clr.dest.cache_mode = TS_CACHE_MODE_128; /* TODO: cache modes */
> +
> + if (surf->surf.ts_size) {
> + clr.dest.use_ts = 1;
> + clr.dest.ts_addr.bo = res->ts_bo;
> + clr.dest.ts_addr.offset = 0;
> + clr.dest.ts_addr.flags = ETNA_RELOC_WRITE;
> + clr.dest.ts_clear_value[0] = new_clear_value;
> + clr.dest.ts_clear_value[1] = new_clear_value;
> + }
> +
> + clr.clear_value[0] = new_clear_value;
> + clr.clear_value[1] = new_clear_value;
> + clr.clear_bits[0] = new_clear_bits;
> + clr.clear_bits[1] = new_clear_bits;
> + clr.rect_x = 0; /* What about scissors? */
> + clr.rect_y = 0;
> + clr.rect_w = surf->surf.width;
> + clr.rect_h = surf->surf.height;
> +
> + emit_blt_clearimage(ctx->stream, &clr);
> +
> + /* This made the TS valid */
> + if (surf->surf.ts_size) {
> + ctx->framebuffer.TS_DEPTH_CLEAR_VALUE = new_clear_value;
> + surf->level->ts_valid = true;
> + }
> +
> + surf->level->clear_value = new_clear_value;
> + resource_written(ctx, surf->base.texture);
> + etna_resource(surf->base.texture)->seqno++;
> +}
> +
> +static void
> +etna_clear_blt(struct pipe_context *pctx, unsigned buffers,
> + const union pipe_color_union *color, double depth, unsigned stencil)
> +{
> + struct etna_context *ctx = etna_context(pctx);
> +
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
> + etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
> +
> + if (buffers & PIPE_CLEAR_COLOR) {
> + for (int idx = 0; idx < ctx->framebuffer_s.nr_cbufs; ++idx) {
> + etna_blit_clear_color_blt(pctx, ctx->framebuffer_s.cbufs[idx],
> + &color[idx]);
> + }
> + }
> +
> + if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL)
> + etna_blit_clear_zs_blt(pctx, ctx->framebuffer_s.zsbuf, buffers, depth, stencil);
> +
> + etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_BLT);
> +
> + if ((buffers & PIPE_CLEAR_COLOR) && (buffers & PIPE_CLEAR_DEPTH))
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
> + else
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000002);
> +}
> +
> +
> +static bool
> +etna_try_blt_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);
> + 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.
> + * TODO: could handle 2x downsample here with emit_blt_genmipmaps */
> + if (blit_info->dst.box.width != blit_info->src.box.width ||
> + blit_info->dst.box.height != abs(blit_info->src.box.height)) { /* allow y flip for glTexImage2D */
> + 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 - not sure if BLT can copy individual 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;
> + }
> +
> + /* TODO: 1 byte per pixel formats aren't handled by etna_compatible_rs_format nor
> + * translate_rs_format.
> + * Also this should be smarter about format conversions; etna_compatible_rs_format
> + * assumes all 2-byte pixel format are laid out as 4444, all 4-byte pixel formats
> + * are 8888.
> + */
> + unsigned src_format = etna_compatible_rs_format(blit_info->src.format);
> + unsigned dst_format = etna_compatible_rs_format(blit_info->dst.format);
> + if (translate_blt_format(src_format) == ETNA_NO_MATCH ||
> + translate_blt_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;
> + }
> +
> + /* Ensure that the Z coordinate is sane */
> + assert(dst->base.target == PIPE_TEXTURE_CUBE || blit_info->dst.box.z == 0);
> + assert(src->base.target == PIPE_TEXTURE_CUBE || 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];
> +
> + /* Kick off BLT here */
> + if (src == dst) {
> + /* Resolve-in-place */
> + assert(!memcmp(&blit_info->src, &blit_info->dst, sizeof(blit_info->src)));
> + if (!src_lev->ts_size || !src_lev->ts_valid) /* No TS, no worries */
> + return TRUE;
> + struct blt_inplace_op op = {};
> +
> + op.addr.bo = src->bo;
> + op.addr.offset = src_lev->offset + blit_info->src.box.z * src_lev->layer_stride;
> + op.addr.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE;
> + op.ts_addr.bo = src->ts_bo;
> + op.ts_addr.offset = src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
> + op.ts_addr.flags = ETNA_RELOC_READ;
> + op.ts_clear_value[0] = src_lev->clear_value;
> + op.ts_clear_value[1] = src_lev->clear_value;
> + op.cache_mode = TS_CACHE_MODE_128; /* TODO: cache modes */
> + op.num_tiles = src_lev->size / 128; /* TODO: cache modes */
> + op.bpp = util_format_get_blocksize(src->base.format);
> +
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
> + etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, 0x00000001);
> + emit_blt_inplace(ctx->stream, &op);
> + } else {
> + /* Copy op */
> + struct blt_imgcopy_op op = {};
> +
> + op.src.addr.bo = src->bo;
> + op.src.addr.offset = src_lev->offset + blit_info->src.box.z * src_lev->layer_stride;
> + op.src.addr.flags = ETNA_RELOC_READ;
> + op.src.format = translate_blt_format(src_format);
> + op.src.stride = src_lev->stride;
> + op.src.tiling = src->layout;
> + op.src.cache_mode = TS_CACHE_MODE_128; /* TODO: cache modes */
> + const struct util_format_description *src_format_desc =
> + util_format_description(blit_info->src.format);
> + for (unsigned x=0; x<4; ++x)
> + op.src.swizzle[x] = src_format_desc->swizzle[x];
> +
> + if (src_lev->ts_size && src_lev->ts_valid) {
> + op.src.use_ts = 1;
> + op.src.ts_addr.bo = src->ts_bo;
> + op.src.ts_addr.offset = src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
> + op.src.ts_addr.flags = ETNA_RELOC_READ;
> + op.src.ts_clear_value[0] = src_lev->clear_value;
> + op.src.ts_clear_value[1] = src_lev->clear_value;
> + }
> +
> + op.dest.addr.bo = dst->bo;
> + op.dest.addr.offset = dst_lev->offset + blit_info->dst.box.z * dst_lev->layer_stride;
> + op.dest.addr.flags = ETNA_RELOC_WRITE;
> + op.dest.format = translate_blt_format(dst_format);
> + op.dest.stride = dst_lev->stride;
> + /* TODO color compression
> + op.dest.compressed = 1;
> + op.dest.compress_fmt = 3;
> + */
> + op.dest.tiling = dst->layout;
> + op.dest.cache_mode = TS_CACHE_MODE_128; /* TODO cache modes */
> + const struct util_format_description *dst_format_desc =
> + util_format_description(blit_info->dst.format);
> + for (unsigned x=0; x<4; ++x)
> + op.dest.swizzle[x] = dst_format_desc->swizzle[x];
> +
> + op.dest_x = blit_info->dst.box.x;
> + op.dest_y = blit_info->dst.box.y;
> + op.src_x = blit_info->src.box.x;
> + op.src_y = blit_info->src.box.y;
> + op.rect_w = blit_info->dst.box.width;
> + op.rect_h = blit_info->dst.box.height;
> +
> + if (blit_info->src.box.height < 0) { /* flipped? fix up base y */
> + op.flip_y = 1;
> + op.src_y += blit_info->src.box.height;
> + }
> +
> + assert(op.src_x < src_lev->padded_width);
> + assert(op.src_y < src_lev->padded_height);
> + assert((op.src_x + op.rect_w) <= src_lev->padded_width);
> + assert((op.src_y + op.rect_h) <= src_lev->padded_height);
> + assert(op.dest_x < dst_lev->padded_width);
> + assert(op.dest_y < dst_lev->padded_height);
> + assert((op.dest_x + op.rect_w) <= dst_lev->padded_width);
> + assert((op.dest_y + op.rect_h) <= dst_lev->padded_height);
> +
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
> + etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, 0x00000001);
> + emit_blt_copyimage(ctx->stream, &op);
> + }
> +
> + /* Make FE wait for BLT, in case we want to do something with the image next.
> + * This probably shouldn't be here, and depend on what is done with the resource.
> + */
> + etna_stall(ctx->stream, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_BLT);
> + etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
> +
> + resource_written(ctx, &dst->base);
> + dst->seqno++;
> + dst_lev->ts_valid = false;
> +
> + return TRUE;
> +}
> +
> +static void
> +etna_blit_blt(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
> +{
> + 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_blt_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_blt_init(struct pipe_context *pctx)
> +{
> + DBG("etnaviv: Using BLT blit engine\n");
> + pctx->clear = etna_clear_blt;
> + pctx->blit = etna_blit_blt;
> +}
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_context.c b/src/gallium/drivers/etnaviv/etnaviv_context.c
> index 5aa9c66..56ab395 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_context.c
> +++ b/src/gallium/drivers/etnaviv/etnaviv_context.c
> @@ -349,8 +349,10 @@ etna_cmd_stream_reset_notify(struct etna_cmd_stream *stream, void *priv)
> etna_set_state(stream, VIVS_GL_UNK03854, 0x00000000);
> etna_set_state(stream, VIVS_PS_CONTROL_EXT, 0x00000000);
>
> - /* Enable SINGLE_BUFFER for resolve, if supported */
> - etna_set_state(stream, VIVS_RS_SINGLE_BUFFER, COND(ctx->specs.single_buffer, VIVS_RS_SINGLE_BUFFER_ENABLE));
> + if (!ctx->specs.use_blt) {
> + /* Enable SINGLE_BUFFER for resolve, if supported */
> + etna_set_state(stream, VIVS_RS_SINGLE_BUFFER, COND(ctx->specs.single_buffer, VIVS_RS_SINGLE_BUFFER_ENABLE));
> + }
>
> ctx->dirty = ~0L;
>
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_internal.h b/src/gallium/drivers/etnaviv/etnaviv_internal.h
> index 92ae1bf..e3d9e12 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_internal.h
> +++ b/src/gallium/drivers/etnaviv/etnaviv_internal.h
> @@ -82,6 +82,8 @@ struct etna_specs {
> unsigned has_unified_uniforms : 1;
> /* can load shader instructions from memory */
> unsigned has_icache : 1;
> + /* has BLT engine instead of RS */
> + unsigned use_blt : 1;
> /* can use any kind of wrapping mode on npot textures */
> unsigned npot_tex_any_wrap;
> /* number of bits per TS tile */
> diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
> index 9e9c590..e48b395 100644
> --- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
> +++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
> @@ -808,6 +808,8 @@ etna_get_specs(struct etna_screen *screen)
> if (screen->specs.single_buffer)
> DBG("etnaviv: Single buffer mode enabled with %d pixel pipes\n", screen->specs.pixel_pipes);
>
> + screen->specs.use_blt = VIV_FEATURE(screen, chipMinorFeatures5, BLT_ENGINE);
> +
> return true;
>
> fail:
> --
> 2.7.4
>
--
greets
--
Christian Gmeiner, MSc
https://christian-gmeiner.info
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