lineage-rockchip/android_external_minigbm
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minigbm: pass in map flags to (*bo_map) callback

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Some eagle-eyed observers have commented that we lose some
potentially useful information for the (*bo_map) callback when
we convert our map flags to page protection flags. Let's not
lose this information, so pass in the map flags. We can convert
to page protection flags using a helper function.

BUG=chromium:764871
TEST=Boot Android and play games on Eve

Change-Id: Ie2cf395109eb5a8de663dfb97a343d20ff0df30c
Reviewed-on: https://chromium-review.googlesource.com/691425
Commit-Ready: Gurchetan Singh <gurchetansingh@chromium.org>
Tested-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
This commit is contained in:
Gurchetan Singh 2017-09-28 17:14:50 -07:00 • committed by chrome-bot
parent f7f633aca5
commit cfb8876755
10 changed files with 35 additions and 23 deletions
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5
rockchip.c
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@ -239,7 +239,7 @@ static int rockchip_bo_create(struct bo *bo, uint32_t width, uint32_t height, ui
ARRAY_SIZE(modifiers));
}
static void *rockchip_bo_map(struct bo *bo, struct map_info *data, size_t plane, int prot)
static void *rockchip_bo_map(struct bo *bo, struct map_info *data, size_t plane, uint32_t map_flags)
{
int ret;
struct drm_rockchip_gem_map_off gem_map;
@ -259,7 +259,8 @@ static void *rockchip_bo_map(struct bo *bo, struct map_info *data, size_t plane,
return MAP_FAILED;
}
void *addr = mmap(0, bo->total_size, prot, MAP_SHARED, bo->drv->fd, gem_map.offset);
void *addr = mmap(0, bo->total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
gem_map.offset);
data->length = bo->total_size;