On Sat, Aug 20, 2016 at 10:39:01AM +0530, Sagar Arun Kamble wrote:
> From: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
>
> Expose host2guc_action for use by SLPC in intel_slpc.c.
>
> Expose functions to allocate and release objects used
> by GuC to be used for SLPC shared memory object.
>
> v5: Updated function names as they need to be made extern. (ChrisW)
>
> Signed-off-by: Tom O'Rourke <Tom.O'Rourke@xxxxxxxxx>
> Signed-off-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_guc_submission.c | 16 ++++++++--------
> drivers/gpu/drm/i915/intel_guc.h | 2 ++
> 2 files changed, 10 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
> index bb40792..680d9b4 100644
> --- a/drivers/gpu/drm/i915/i915_guc_submission.c
> +++ b/drivers/gpu/drm/i915/i915_guc_submission.c
> @@ -47,7 +47,7 @@
> * Firmware writes a success/fail code back to the action register after
> * processes the request. The kernel driver polls waiting for this update and
> * then proceeds.
> - * See host2guc_action()
> + * See i915_guc_action()
> *
> * Doorbells:
> * Doorbells are interrupts to uKernel. A doorbell is a single cache line (QW)
> @@ -75,7 +75,7 @@ static inline bool host2guc_action_response(struct drm_i915_private *dev_priv,
> return GUC2HOST_IS_RESPONSE(val);
> }
>
> -static int host2guc_action(struct intel_guc *guc, u32 *data, u32 len)
> +int i915_guc_action(struct intel_guc *guc, u32 *data, u32 len)
> {
> struct drm_i915_private *dev_priv = guc_to_i915(guc);
> u32 status;
> @@ -141,7 +141,7 @@ static int host2guc_allocate_doorbell(struct intel_guc *guc,
> data[0] = HOST2GUC_ACTION_ALLOCATE_DOORBELL;
> data[1] = client->ctx_index;
>
> - return host2guc_action(guc, data, 2);
> + return i915_guc_action(guc, data, 2);
> }
>
> static int host2guc_release_doorbell(struct intel_guc *guc,
> @@ -152,7 +152,7 @@ static int host2guc_release_doorbell(struct intel_guc *guc,
> data[0] = HOST2GUC_ACTION_DEALLOCATE_DOORBELL;
> data[1] = client->ctx_index;
>
> - return host2guc_action(guc, data, 2);
> + return i915_guc_action(guc, data, 2);
> }
>
> static int host2guc_sample_forcewake(struct intel_guc *guc,
> @@ -169,7 +169,7 @@ static int host2guc_sample_forcewake(struct intel_guc *guc,
> /* bit 0 and 1 are for Render and Media domain separately */
> data[1] = GUC_FORCEWAKE_RENDER | GUC_FORCEWAKE_MEDIA;
>
> - return host2guc_action(guc, data, ARRAY_SIZE(data));
> + return i915_guc_action(guc, data, ARRAY_SIZE(data));
> }
>
> /*
> @@ -621,7 +621,7 @@ static void i915_guc_submit(struct drm_i915_gem_request *rq)
> *
> * Return: A i915_vma if successful, otherwise an ERR_PTR.
> */
> -static struct i915_vma *guc_allocate_vma(struct intel_guc *guc, u32 size)
> +struct i915_vma *guc_allocate_vma(struct intel_guc *guc, u32 size)
> {
> struct drm_i915_private *dev_priv = guc_to_i915(guc);
> struct drm_i915_gem_object *obj;
> @@ -1066,7 +1066,7 @@ int intel_guc_suspend(struct drm_device *dev)
> /* first page is shared data with GuC */
> data[2] = i915_ggtt_offset(ctx->engine[RCS].state);
>
> - return host2guc_action(guc, data, ARRAY_SIZE(data));
> + return i915_guc_action(guc, data, ARRAY_SIZE(data));
> }
>
>
> @@ -1091,5 +1091,5 @@ int intel_guc_resume(struct drm_device *dev)
> /* first page is shared data with GuC */
> data[2] = i915_ggtt_offset(ctx->engine[RCS].state);
>
> - return host2guc_action(guc, data, ARRAY_SIZE(data));
> + return i915_guc_action(guc, data, ARRAY_SIZE(data));
> }
> diff --git a/drivers/gpu/drm/i915/intel_guc.h b/drivers/gpu/drm/i915/intel_guc.h
> index c973262..9e6b948 100644
> --- a/drivers/gpu/drm/i915/intel_guc.h
> +++ b/drivers/gpu/drm/i915/intel_guc.h
> @@ -155,9 +155,11 @@ extern int intel_guc_suspend(struct drm_device *dev);
> extern int intel_guc_resume(struct drm_device *dev);
>
> /* i915_guc_submission.c */
> +int i915_guc_action(struct intel_guc *guc, u32 *data, u32 len);
> int i915_guc_submission_init(struct drm_i915_private *dev_priv);
> int i915_guc_submission_enable(struct drm_i915_private *dev_priv);
> int i915_guc_wq_check_space(struct drm_i915_gem_request *rq);
> +struct i915_vma *guc_allocate_vma(struct intel_guc *guc, u32 size);
> void i915_guc_submission_disable(struct drm_i915_private *dev_priv);
> void i915_guc_submission_fini(struct drm_i915_private *dev_priv);
Reviewed-by: David Weinehall <david.weinehall@xxxxxxxxxxxxxxx>
--
/) David Weinehall <tao@xxxxxxxxxx> /) Northern lights wander (\
// Maintainer of the v2.0 kernel // Dance across the winter sky //
\) http://www.acc.umu.se/~tao/ (/ Full colour fire (/
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