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gpu: host1x: Add direction flags to relocations

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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>
This commit is contained in:
Thierry Reding 2019-10-28 13:37:11 +01:00
parent 44156eee91
commit ab4f81bfc2
2 changed files with 6 additions and 0 deletions
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2
drivers/gpu/drm/tegra/drm.c
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@ -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;

4
include/linux/host1x.h
View File

@ -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 {