Mesa (main): crocus: align staging resource pitch on gen4/5 to allow BLT usage.
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Wed Aug 11 19:33:08 UTC 2021
Module: Mesa
Branch: main
Commit: 593ad9294bee4a735b5ad5bccd4537c23b9eb738
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=593ad9294bee4a735b5ad5bccd4537c23b9eb738
Author: Dave Airlie <airlied at gmail.com>
Date: Wed Aug 11 13:34:26 2021 -0400
crocus: align staging resource pitch on gen4/5 to allow BLT usage.
Aligning the pitch to 4 bytes allows the BLT engine to be used for
transfers to/from these surfaces.
Fixes: f3630548f1da ("crocus: initial gallium driver for Intel gfx 4-7")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12329>
---
src/gallium/drivers/crocus/crocus_resource.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/gallium/drivers/crocus/crocus_resource.c b/src/gallium/drivers/crocus/crocus_resource.c
index a01703e9946..2c8ea3a6529 100644
--- a/src/gallium/drivers/crocus/crocus_resource.c
+++ b/src/gallium/drivers/crocus/crocus_resource.c
@@ -228,6 +228,14 @@ crocus_resource_configure_main(const struct crocus_screen *screen,
const enum isl_format format =
crocus_format_for_usage(&screen->devinfo, templ->format, usage).fmt;
+ if (row_pitch_B == 0 && templ->usage == PIPE_USAGE_STAGING &&
+ templ->target == PIPE_TEXTURE_2D &&
+ devinfo->ver < 6) {
+ /* align row pitch to 4 so we can keep using BLT engine */
+ row_pitch_B = util_format_get_stride(templ->format, templ->width0);
+ row_pitch_B = ALIGN(row_pitch_B, 4);
+ }
+
const struct isl_surf_init_info init_info = {
.dim = crocus_target_to_isl_surf_dim(templ->target),
.format = format,
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