Mesa (staging/18.3): virgl: don't mark buffers as unclean after a write
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Wed Dec 5 16:24:07 UTC 2018
Module: Mesa
Branch: staging/18.3
Commit: c694d84f10cd5ef8392f95fe31d8804742c5c8bd
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=c694d84f10cd5ef8392f95fe31d8804742c5c8bd
Author: Gurchetan Singh <gurchetansingh at chromium.org>
Date: Mon Nov 26 09:54:05 2018 -0800
virgl: don't mark buffers as unclean after a write
We can mark the buffer unclean if it's ever bound as a TBO,
SSBO, ABO, or image.
This improves
dEQP-GLES3.performance.buffer.data_upload.function_call.map_buffer_range.new_specified_buffer.flag_write_full.stream_draw
from 9.58 MB/s to 451.17 MB/s.
v2: Track buffer cleanliness as a function of bindings (Ilia).
v3: virgl_modify_clean --> virgl_dirty_res (Erik)
Tested-By: Gert Wollny <gert.wollny at collabora.com>
Reviewed-by: Erik Faye-Lund <erik.faye-lund at collabora.com>
(cherry picked from commit 89b4798c0619a2ba99046d5ad36f0e6851625f7a)
With this and previous two patches, the performance of virgl on top of
a r600 (AMD 6870 HD) host improves as follows:
| FPS avg | Score
--------------------------------
before | 8.2 | 343
after | 21.9 | 916
| FPS avg | Score
--------------------------------
before | 13.2 | 333
after | 32.3 | 790
---
src/gallium/drivers/virgl/virgl_buffer.c | 1 -
src/gallium/drivers/virgl/virgl_encode.c | 10 ++++++++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/gallium/drivers/virgl/virgl_buffer.c b/src/gallium/drivers/virgl/virgl_buffer.c
index 88a22b56f9..f72c93f499 100644
--- a/src/gallium/drivers/virgl/virgl_buffer.c
+++ b/src/gallium/drivers/virgl/virgl_buffer.c
@@ -106,7 +106,6 @@ static void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
if (trans->base.usage & PIPE_TRANSFER_WRITE) {
if (!(transfer->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
struct virgl_screen *vs = virgl_screen(ctx->screen);
- vbuf->base.clean = FALSE;
vctx->num_transfers++;
vs->vws->transfer_put(vs->vws, vbuf->base.hw_res,
&transfer->box, trans->base.stride, trans->base.layer_stride, trans->offset, transfer->level);
diff --git a/src/gallium/drivers/virgl/virgl_encode.c b/src/gallium/drivers/virgl/virgl_encode.c
index e86d0711a5..ee2764d74e 100644
--- a/src/gallium/drivers/virgl/virgl_encode.c
+++ b/src/gallium/drivers/virgl/virgl_encode.c
@@ -61,6 +61,12 @@ static void virgl_encoder_write_res(struct virgl_context *ctx,
}
}
+static void virgl_dirty_res(struct virgl_resource *res)
+{
+ if (res)
+ res->clean = FALSE;
+}
+
int virgl_encode_bind_object(struct virgl_context *ctx,
uint32_t handle, uint32_t object)
{
@@ -615,6 +621,7 @@ int virgl_encode_sampler_view(struct virgl_context *ctx,
if (res->u.b.target == PIPE_BUFFER) {
virgl_encoder_write_dword(ctx->cbuf, state->u.buf.offset / elem_size);
virgl_encoder_write_dword(ctx->cbuf, (state->u.buf.offset + state->u.buf.size) / elem_size - 1);
+ virgl_dirty_res(res);
} else {
virgl_encoder_write_dword(ctx->cbuf, state->u.tex.first_layer | state->u.tex.last_layer << 16);
virgl_encoder_write_dword(ctx->cbuf, state->u.tex.first_level | state->u.tex.last_level << 8);
@@ -949,6 +956,7 @@ int virgl_encode_set_shader_buffers(struct virgl_context *ctx,
virgl_encoder_write_dword(ctx->cbuf, buffers[i].buffer_offset);
virgl_encoder_write_dword(ctx->cbuf, buffers[i].buffer_size);
virgl_encoder_write_res(ctx, res);
+ virgl_dirty_res(res);
} else {
virgl_encoder_write_dword(ctx->cbuf, 0);
virgl_encoder_write_dword(ctx->cbuf, 0);
@@ -972,6 +980,7 @@ int virgl_encode_set_hw_atomic_buffers(struct virgl_context *ctx,
virgl_encoder_write_dword(ctx->cbuf, buffers[i].buffer_offset);
virgl_encoder_write_dword(ctx->cbuf, buffers[i].buffer_size);
virgl_encoder_write_res(ctx, res);
+ virgl_dirty_res(res);
} else {
virgl_encoder_write_dword(ctx->cbuf, 0);
virgl_encoder_write_dword(ctx->cbuf, 0);
@@ -999,6 +1008,7 @@ int virgl_encode_set_shader_images(struct virgl_context *ctx,
virgl_encoder_write_dword(ctx->cbuf, images[i].u.buf.offset);
virgl_encoder_write_dword(ctx->cbuf, images[i].u.buf.size);
virgl_encoder_write_res(ctx, res);
+ virgl_dirty_res(res);
} else {
virgl_encoder_write_dword(ctx->cbuf, 0);
virgl_encoder_write_dword(ctx->cbuf, 0);
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