Commit ab4f81bf authored by Thierry Reding's avatar Thierry Reding
Browse files

gpu: host1x: Add direction flags to relocations 



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: default avatarThierry Reding <treding@nvidia.com>
parent 44156eee

drivers/gpu/drm/tegra/drm.c

+2 −0
Original line number Diff line number Diff line
@@ -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;

include/linux/host1x.h

+4 −0
Original line number Diff line number Diff line
@@ -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 {

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