[PATCH libdrm 04/25] tegra: Fix mmap() of GEM buffer objects
Thierry Reding
thierry.reding at gmail.com
Fri Aug 27 13:22:44 UTC 2021
From: Thierry Reding <treding at nvidia.com>
Store 64-bit offset values and use libdrm's built-in drm_mmap() function
instead of mmap() to ensure the full 64-bit offset is used.
Signed-off-by: Thierry Reding <treding at nvidia.com>
---
tegra/private.h | 2 +-
tegra/tegra.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/tegra/private.h b/tegra/private.h
index 215dd3309bce..d0f2944bfb3a 100644
--- a/tegra/private.h
+++ b/tegra/private.h
@@ -41,7 +41,7 @@ struct drm_tegra {
struct drm_tegra_bo {
struct drm_tegra *drm;
uint32_t handle;
- uint32_t offset;
+ uint64_t offset;
uint32_t flags;
uint32_t size;
atomic_t ref;
diff --git a/tegra/tegra.c b/tegra/tegra.c
index bf8e5c9213ca..5225ad052fb3 100644
--- a/tegra/tegra.c
+++ b/tegra/tegra.c
@@ -215,8 +215,8 @@ drm_public int drm_tegra_bo_map(struct drm_tegra_bo *bo, void **ptr)
bo->offset = args.offset;
- bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
- drm->fd, bo->offset);
+ bo->map = drm_mmap(NULL, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED,
+ drm->fd, bo->offset);
if (bo->map == MAP_FAILED) {
bo->map = NULL;
return -errno;
--
2.32.0
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