[Mesa-dev] [PATCH 09/19] etnaviv: GC7000: BLT engine blitting support
Wladimir J. van der Laan
laanwj at gmail.com
Mon Oct 30 16:16:55 UTC 2017
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/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
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