[PATCH v3 1/6] drm/amd/display: Use DRM new-style object iterators.

[Harry Wentland]

On 2017-10-13 03:29 PM, sunpeng.li at amd.com wrote:
> From: "Leo (Sunpeng) Li" <sunpeng.li at amd.com>
> 
> Use the correct for_each_new/old_* iterators instead of for_each_*
> 
> The following functions were considered:
> 
> 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
> 
> v2: Split out typo fixes to a new patch.
> 
> v3: Say "functions considered" instead of "affected functions". The
>     latter implies that changes are made to each.
> 
> Signed-off-by: Leo (Sunpeng) Li <sunpeng.li at amd.com>

Patches 1-2 (v3) are also
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

> ---
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 32 ++++++++---------------
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |  3 +--
>  2 files changed, 12 insertions(+), 23 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..cc024ab 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
> @@ -570,23 +570,15 @@ static int dm_suspend(void *handle)
>  
>  struct amdgpu_dm_connector *amdgpu_dm_find_first_crct_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;
>  
>  		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;
> @@ -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;
>  
> @@ -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_crct_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",
> @@ -4151,7 +4141,7 @@ void amdgpu_dm_atomic_commit_tail(
>  	}
>  
>  	/* Handle scaling and undersacn changes*/
> -	for_each_new_connector_in_state(state, connector, old_conn_state, i) {
> +	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);
> @@ -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);
>  
>  		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)
> @@ -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_crct_matching_connector(state, crtc);
>  
>  		/* TODO This hack should go away */
>  		if (aconnector) {
> 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..1c55a0b 100644
> --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
> @@ -228,8 +228,7 @@ void amdgpu_dm_update_connector_after_detect(
>  
>  struct amdgpu_dm_connector *amdgpu_dm_find_first_crct_matching_connector(
>  	struct drm_atomic_state *state,
> -	struct drm_crtc *crtc,
> -	bool from_state_var);
> +	struct drm_crtc *crtc);
>  
>  
>  struct amdgpu_framebuffer;
>