Re: [PATCH] amdgpu/dc: Use DRM new-style object iterators.

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Op 11-10-17 om 16:24 schreef sunpeng.li@xxxxxxx:
> From: "Leo (Sunpeng) Li" <sunpeng.li@xxxxxxx>
>
> Use the correct for_each_new/old_* iterators instead of for_each_*
>
> List of affected functions:
>
> amdgpu_dm_find_first_crtc_matching_connector: use for_each_new
>     - Old from_state_var flag was always choosing the new state
>
> amdgpu_dm_display_resume: use for_each_new
>     - drm_atomic_helper_duplicate_state is called during suspend to
>       cache the state
>     - It sets 'state' within the state triplet to 'new_state'
>
> amdgpu_dm_commit_planes: use for_each_old
>     - Called after the state was swapped (via atomic commit tail)
>
> amdgpu_dm_atomic_commit: use for_each_new
>     - Called before the state is swapped
>
> amdgpu_dm_atomic_commit_tail: use for_each_old
>     - Called after the state was swapped
>
> dm_update_crtcs_state: use for_each_new
>     - Called before the state is swapped (via atomic check)
>
> amdgpu_dm_atomic_check: use for_each_new
>     - Called before the state is swapped
>
> Also fix some typos.
>
> crct -> crtc
> undersacn -> underscan
>
> Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@xxxxxxx>
> ---
>
> Hi Dave,
>
> This patch goes on top of your fixup for new api's patch. Please feel
> free to squash them.
>
> Thanks,
> Leo
>
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 38 +++++++++--------------
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |  5 ++-
>  2 files changed, 16 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> index 9bfe1f9..9394558 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -568,25 +568,17 @@ static int dm_suspend(void *handle)
>  	return ret;
>  }
>  
> -struct amdgpu_dm_connector *amdgpu_dm_find_first_crct_matching_connector(
> +struct amdgpu_dm_connector *amdgpu_dm_find_first_crtc_matching_connector(
>  	struct drm_atomic_state *state,
> -	struct drm_crtc *crtc,
> -	bool from_state_var)
> +	struct drm_crtc *crtc)
>  {
>  	uint32_t i;
>  	struct drm_connector_state *conn_state;
>  	struct drm_connector *connector;
>  	struct drm_crtc *crtc_from_state;
>  
> -	for_each_new_connector_in_state(
> -		state,
> -		connector,
> -		conn_state,
> -		i) {
> -		crtc_from_state =
> -			from_state_var ?
> -				conn_state->crtc :
> -				connector->state->crtc;
> +	for_each_new_connector_in_state(state, connector, conn_state, i) {
> +		crtc_from_state = conn_state->crtc;
Please assign crtc_from_state here with drm_atomic_get_(new/old)_crtc_state.


>  		if (crtc_from_state == crtc)
>  			return to_amdgpu_dm_connector(connector);
> @@ -3890,7 +3882,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
>  	unsigned long flags;
>  
>  	/* update planes when needed */
> -	for_each_new_plane_in_state(state, plane, old_plane_state, i) {
> +	for_each_old_plane_in_state(state, plane, old_plane_state, i) {
>  		struct drm_plane_state *plane_state = plane->state;
>  		struct drm_crtc *crtc = plane_state->crtc;
>  		struct drm_framebuffer *fb = plane_state->fb;
Use for_each_oldnew_*_in_state
> @@ -4024,7 +4016,7 @@ void amdgpu_dm_atomic_commit_tail(
>  	dm_state = to_dm_atomic_state(state);
>  
>  	/* update changed items */
> -	for_each_new_crtc_in_state(state, crtc, old_crtc_state, i) {
> +	for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
>  		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
>  		struct drm_crtc_state *new_state = crtc->state;
Same.
>  
> @@ -4113,11 +4105,9 @@ void amdgpu_dm_atomic_commit_tail(
>  			new_acrtc_state = to_dm_crtc_state(new_crtcs[i]->base.state);
>  
>  			new_stream = new_acrtc_state->stream;
> -			aconnector =
> -				amdgpu_dm_find_first_crct_matching_connector(
> +			aconnector = amdgpu_dm_find_first_crtc_matching_connector(
>  					state,
> -					&new_crtcs[i]->base,
> -					false);
> +					&new_crtcs[i]->base);
>  			if (!aconnector) {
>  				DRM_DEBUG_DRIVER("Atomic commit: Failed to find connector for acrtc id:%d "
>  					 "skipping freesync init\n",
> @@ -4150,8 +4140,8 @@ void amdgpu_dm_atomic_commit_tail(
>  		}
>  	}
>  
> -	/* Handle scaling and undersacn changes*/
> -	for_each_new_connector_in_state(state, connector, old_conn_state, i) {
> +	/* Handle scaling and underscan changes*/
> +	for_each_old_connector_in_state(state, connector, old_conn_state, i) {
>  		struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
>  		struct dm_connector_state *con_new_state =
>  				to_dm_connector_state(aconnector->base.state);
Same here..
> @@ -4205,7 +4195,7 @@ void amdgpu_dm_atomic_commit_tail(
>  	}
>  
>  	/* update planes when needed per crtc*/
> -	for_each_new_crtc_in_state(state, pcrtc, old_crtc_state, j) {
> +	for_each_old_crtc_in_state(state, pcrtc, old_crtc_state, j) {
>  		new_acrtc_state = to_dm_crtc_state(pcrtc->state);
Same.
>  		if (new_acrtc_state->stream)
> @@ -4218,7 +4208,7 @@ void amdgpu_dm_atomic_commit_tail(
>  	 * mark consumed event for drm_atomic_helper_commit_hw_done
>  	 */
>  	spin_lock_irqsave(&adev->ddev->event_lock, flags);
> -	for_each_new_crtc_in_state(state, crtc, old_crtc_state, i) {
> +	for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
>  		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
>  
>  		if (acrtc->base.state->event)
Same. You're dereferencing crtc->state
> @@ -4402,7 +4392,7 @@ static int dm_update_crtcs_state(
>  		new_acrtc_state = to_dm_crtc_state(crtc_state);
>  		acrtc = to_amdgpu_crtc(crtc);
>  
> -		aconnector = amdgpu_dm_find_first_crct_matching_connector(state, crtc, true);
> +		aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc);
>  
>  		/* TODO This hack should go away */
>  		if (aconnector) {
> @@ -4715,7 +4705,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev,
>  	 if (ret)
>  		 goto fail;
>  
> -	/* Check scaling and undersacn changes*/
> +	/* Check scaling and underscan changes*/
>  	/*TODO Removed scaling changes validation due to inability to commit
>  	 * new stream into context w\o causing full reset. Need to
>  	 * decide how to handle.
> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> index 630e6cd..c1b77bd 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> @@ -226,10 +226,9 @@ extern const struct amdgpu_ip_block_version dm_ip_block;
>  void amdgpu_dm_update_connector_after_detect(
>  	struct amdgpu_dm_connector *aconnector);
>  
> -struct amdgpu_dm_connector *amdgpu_dm_find_first_crct_matching_connector(
> +struct amdgpu_dm_connector *amdgpu_dm_find_first_crtc_matching_connector(
>  	struct drm_atomic_state *state,
> -	struct drm_crtc *crtc,
> -	bool from_state_var);
> +	struct drm_crtc *crtc);
>  
>  
>  struct amdgpu_framebuffer;


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