From: Thierry Reding <treding@xxxxxxxxxx>
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@xxxxxxxxxx>
---
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 9a1c1694604a..efc8a27b9e6a 100644
--- a/drivers/gpu/drm/tegra/drm.c
+++ b/drivers/gpu/drm/tegra/drm.c
@@ -149,6 +149,8 @@ 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 {
--
2.23.0
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