From: Thierry Reding treding@nvidia.com
Add direction flags to host1x relocations performed during job pinning. These flags indicate the kinds of accesses that hardware is allowed to perform on the relocated buffers.
Signed-off-by: Thierry Reding treding@nvidia.com --- drivers/gpu/drm/tegra/drm.c | 2 ++ include/linux/host1x.h | 4 ++++ 2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index b74362cb63eb..959086644b52 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -311,6 +311,8 @@ static int host1x_reloc_copy_from_user(struct host1x_reloc *dest, if (err < 0) return err;
+ dest->flags = HOST1X_RELOC_READ | HOST1X_RELOC_WRITE; + dest->cmdbuf.bo = host1x_bo_lookup(file, cmdbuf); if (!dest->cmdbuf.bo) return -ENOENT; diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 1ba23a6a2021..6f8d772591ba 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -173,6 +173,9 @@ int host1x_job_submit(struct host1x_job *job); * host1x job */
+#define HOST1X_RELOC_READ (1 << 0) +#define HOST1X_RELOC_WRITE (1 << 1) + struct host1x_reloc { struct { struct host1x_bo *bo; @@ -183,6 +186,7 @@ struct host1x_reloc { unsigned long offset; } target; unsigned long shift; + unsigned long flags; };
struct host1x_job {