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virgl: Support VIRGL_BIND_STAGING

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Support a new virgl bind type for staging buffers which don't require
dedicated host-side storage. These will be used to implement copy
transfers.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Chia-I Wu <olvaffe@gmail.com>
This commit is contained in:
Alexandros Frantzis 2019-05-20 13:00:38 +03:00 • committed by Chia-I Wu
parent f38cdaebac
commit 636345f496
3 changed files with 16 additions and 4 deletions
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1
src/gallium/drivers/virgl/virgl_hw.h
View file

@ -262,6 +262,7 @@ enum virgl_formats {
#define VIRGL_BIND_CURSOR (1 << 16)
#define VIRGL_BIND_CUSTOM (1 << 17)
#define VIRGL_BIND_SCANOUT (1 << 18)
#define VIRGL_BIND_STAGING (1 << 19)
struct virgl_caps_bool_set1 {
unsigned indep_blend_enable:1;

2
src/gallium/drivers/virgl/virgl_resource.c
View file

@ -179,7 +179,7 @@ static struct pipe_resource *virgl_resource_create(struct pipe_screen *screen,
res->u.b = *templ;
res->u.b.screen = &vs->base;
pipe_reference_init(&res->u.b.reference, 1);
vbind = pipe_to_virgl_bind(vs, templ->bind);
vbind = pipe_to_virgl_bind(vs, templ->bind, templ->flags);
virgl_resource_layout(&res->u.b, &res->metadata);
res->hw_res = vs->vws->resource_create(vs->vws, templ->target,
templ->format, vbind,

17
src/gallium/drivers/virgl/virgl_resource.h
View file

@ -33,6 +33,12 @@
#include "virgl_screen.h"
#define VR_MAX_TEXTURE_2D_LEVELS 15
/* Indicates that the resource will be used as a staging buffer, not requiring
* dedicated host-side storage. Can only be used with PIPE_BUFFER resources
* that have a PIPE_BIND_CUSTOM bind type.
*/
#define VIRGL_RESOURCE_FLAG_STAGING (PIPE_RESOURCE_FLAG_DRV_PRIV << 0)
struct winsys_handle;
struct virgl_screen;
struct virgl_context;
@ -90,7 +96,8 @@ static inline struct virgl_transfer *virgl_transfer(struct pipe_transfer *trans)
void virgl_buffer_init(struct virgl_resource *res);
static inline unsigned pipe_to_virgl_bind(const struct virgl_screen *vs, unsigned pbind)
static inline unsigned pipe_to_virgl_bind(const struct virgl_screen *vs,
unsigned pbind, unsigned flags)
{
unsigned outbind = 0;
if (pbind & PIPE_BIND_DEPTH_STENCIL)
@ -111,8 +118,12 @@ static inline unsigned pipe_to_virgl_bind(const struct virgl_screen *vs, unsigne
outbind |= VIRGL_BIND_STREAM_OUTPUT;
if (pbind & PIPE_BIND_CURSOR)
outbind |= VIRGL_BIND_CURSOR;
if (pbind & PIPE_BIND_CUSTOM)
outbind |= VIRGL_BIND_CUSTOM;
if (pbind & PIPE_BIND_CUSTOM) {
if (flags & VIRGL_RESOURCE_FLAG_STAGING)
outbind |= VIRGL_BIND_STAGING;
else
outbind |= VIRGL_BIND_CUSTOM;
}
if (pbind & PIPE_BIND_SCANOUT)
outbind |= VIRGL_BIND_SCANOUT;
if (pbind & PIPE_BIND_SHADER_BUFFER)