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modesetting: map gbm bo's if possible

Browse source 
Signed-off-by: stefan11111 <stefan11111@shitposting.expert>
This commit is contained in:
stefan11111 2025-11-19 12:25:37 +02:00 • committed by Enrico Weigelt
commit 7293fc12fe
2 changed files with 23 additions and 9 deletions
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31
hw/xfree86/drivers/video/modesetting/drmmode_display.c
View file

@ -1064,21 +1064,34 @@ drmmode_bo_get_handle(drmmode_bo *bo)
static void *
drmmode_bo_map(drmmode_ptr drmmode, drmmode_bo *bo)
{
int ret;
if (bo->map) {
return bo->map;
}
#ifdef GLAMOR_HAS_GBM
if (bo->gbm)
return NULL;
if (bo->gbm) {
/* We shouldn't read from gpu memory */
uint32_t stride;
void* unused;
void* map = gbm_bo_map(bo->gbm, 0, 0, bo->width, bo->height, GBM_BO_TRANSFER_WRITE, &stride, &unused);
if (map) {
bo->map = map;
return bo->map;
}
}
#endif
if (bo->dumb->ptr)
return bo->dumb->ptr;
if (bo->dumb) {
int ret = dumb_bo_map(drmmode->fd, bo->dumb);
if (ret) {
return NULL;
}
ret = dumb_bo_map(drmmode->fd, bo->dumb);
if (ret)
return NULL;
bo->map = bo->dumb->ptr;
return bo->map;
}
return bo->dumb->ptr;
return NULL;
}
int

1
hw/xfree86/drivers/video/modesetting/drmmode_display.h
View file

@ -85,6 +85,7 @@ typedef struct {
Bool used_modifiers;
struct gbm_bo *gbm;
#endif
void* map;
} drmmode_bo;
typedef struct {