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From: Thierry Reding <thierry.reding@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org
Subject: [PATCH libdrm 04/25] tegra: Fix mmap() of GEM buffer objects
Date: Fri, 27 Aug 2021 15:22:44 +0200	[thread overview]
Message-ID: <20210827132305.3572077-5-thierry.reding@gmail.com> (raw)
In-Reply-To: <20210827132305.3572077-1-thierry.reding@gmail.com>

From: Thierry Reding <treding@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@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


  parent reply	other threads:[~2021-08-27 13:23 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-27 13:22 [PATCH libdrm 00/25] Update Tegra support Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 01/25] tegra: Indent according to .editorconfig Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 02/25] tegra: Remove unused IOCTL implementations Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 03/25] tegra: Extract common buffer object allocation code Thierry Reding
2021-08-27 13:22 ` Thierry Reding [this message]
2021-08-27 13:22 ` [PATCH libdrm 05/25] tegra: Add flink helpers Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 06/25] tegra: Add PRIME support helpers Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 07/25] tegra: Make API more consistent Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 08/25] tegra: Install tegra-openclose test Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 09/25] tegra: Update for new UABI Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 10/25] tegra: Include private.h in list of source files Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 11/25] tegra: Add channel APIs Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 12/25] tegra: Add job and push buffer APIs Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 13/25] tegra: Add syncpoint APIs Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 14/25] tests: tegra: Add helper library for tests Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 15/25] tests: tegra: Add gr2d-fill test Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 16/25] tests: tegra: Add syncpt-wait test Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 17/25] tests: tegra: Add syncpoint timeout test Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 18/25] tests: tegra: Add VIC support Thierry Reding
2021-08-27 13:22 ` [PATCH libdrm 19/25] tests: tegra: Add VIC 3.0 support Thierry Reding
2021-08-27 14:06   ` Michał Mirosław
2021-08-27 13:23 ` [PATCH libdrm 20/25] tests: tegra: Add VIC 4.0 support Thierry Reding
2021-08-27 13:23 ` [PATCH libdrm 21/25] tests: tegra: Add VIC 4.1 support Thierry Reding
2021-08-27 13:23 ` [PATCH libdrm 22/25] tests: tegra: Add VIC 4.2 support Thierry Reding
2021-08-27 13:23 ` [PATCH libdrm 23/25] tests: tegra: Add VIC clear test Thierry Reding
2021-08-27 13:23 ` [PATCH libdrm 24/25] tests: tegra: Add VIC blit test Thierry Reding
2021-08-27 13:23 ` [PATCH libdrm 25/25] tests: tegra: Add VIC flip test Thierry Reding
2021-09-20 16:43 ` [PATCH libdrm 00/25] Update Tegra support Dmitry Osipenko

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