drm/amd/display: Use new DRM API where possible

To conform to DRM's new API, we should not be accessing a DRM object's
internal state directly. Rather, the DRM for_each_old/new_* iterators,
and drm_atomic_get_old/new_* interface should be used.

This is an ongoing process. For now, update the DRM-facing atomic
functions, where the atomic state object is given.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 cc024ab..d4426b3 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3873,28 +3873,31 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
 {
        uint32_t i;
        struct drm_plane *plane;
-       struct drm_plane_state *old_plane_state;
+       struct drm_plane_state *old_plane_state, *new_plane_state;
        struct dc_stream_state *dc_stream_attach;
        struct dc_plane_state *plane_states_constructed[MAX_SURFACES];
        struct amdgpu_crtc *acrtc_attach = to_amdgpu_crtc(pcrtc);
-       struct dm_crtc_state *acrtc_state = to_dm_crtc_state(pcrtc->state);
+       struct drm_crtc_state *new_pcrtc_state =
+                       drm_atomic_get_new_crtc_state(state, pcrtc);
+       struct dm_crtc_state *acrtc_state = to_dm_crtc_state(new_pcrtc_state);
        int planes_count = 0;
        unsigned long flags;
 
        /* update planes when needed */
-       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;
+       for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) {
+               struct drm_crtc *crtc = new_plane_state->crtc;
+               struct drm_crtc_state *new_crtc_state =
+                               drm_atomic_get_new_crtc_state(state, crtc);
+               struct drm_framebuffer *fb = new_plane_state->fb;
                bool pflip_needed;
-               struct dm_plane_state *dm_plane_state = to_dm_plane_state(plane_state);
+               struct dm_plane_state *dm_plane_state = to_dm_plane_state(new_plane_state);
 
                if (plane->type == DRM_PLANE_TYPE_CURSOR) {
                        handle_cursor_update(plane, old_plane_state);
                        continue;
                }
 
-               if (!fb || !crtc || pcrtc != crtc || !crtc->state->active)
+               if (!fb || !crtc || pcrtc != crtc || !new_crtc_state->active)
                        continue;
 
                pflip_needed = !state->allow_modeset;
@@ -3918,13 +3921,13 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
                        dc_stream_attach = acrtc_state->stream;
                        planes_count++;
 
-               } else if (crtc->state->planes_changed) {
+               } else if (new_crtc_state->planes_changed) {
                        /* Assume even ONE crtc with immediate flip means
                         * entire can't wait for VBLANK
                         * TODO Check if it's correct
                         */
                        *wait_for_vblank =
-                                       pcrtc->state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC ?
+                                       new_pcrtc_state->pageflip_flags & DRM_MODE_PAGE_FLIP_ASYNC ?
                                false : true;
 
                        /* TODO: Needs rework for multiplane flip */
@@ -3942,7 +3945,7 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state,
        if (planes_count) {
                unsigned long flags;
 
-               if (pcrtc->state->event) {
+               if (new_pcrtc_state->event) {
 
                        drm_crtc_vblank_get(pcrtc);
 
@@ -3968,7 +3971,7 @@ int amdgpu_dm_atomic_commit(
                bool nonblock)
 {
        struct drm_crtc *crtc;
-       struct drm_crtc_state *new_state;
+       struct drm_crtc_state *old_crtc_state, *new_state;
        struct amdgpu_device *adev = dev->dev_private;
        int i;
 
@@ -3979,8 +3982,8 @@ int amdgpu_dm_atomic_commit(
         * it will update crtc->dm_crtc_state->stream pointer which is used in
         * the ISRs.
         */
-       for_each_new_crtc_in_state(state, crtc, new_state, i) {
-               struct dm_crtc_state *old_acrtc_state = to_dm_crtc_state(crtc->state);
+       for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_state, i) {
+               struct dm_crtc_state *old_acrtc_state = to_dm_crtc_state(old_crtc_state);
                struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
 
                if (drm_atomic_crtc_needs_modeset(new_state) && old_acrtc_state->stream)
@@ -4002,13 +4005,13 @@ void amdgpu_dm_atomic_commit_tail(
        uint32_t i, j;
        uint32_t new_crtcs_count = 0;
        struct drm_crtc *crtc, *pcrtc;
-       struct drm_crtc_state *old_crtc_state;
+       struct drm_crtc_state *old_crtc_state, *new_crtc_state;
        struct amdgpu_crtc *new_crtcs[MAX_STREAMS];
        struct dc_stream_state *new_stream = NULL;
        unsigned long flags;
        bool wait_for_vblank = true;
        struct drm_connector *connector;
-       struct drm_connector_state *old_conn_state;
+       struct drm_connector_state *old_conn_state, *new_con_state;
        struct dm_crtc_state *old_acrtc_state, *new_acrtc_state;
 
        drm_atomic_helper_update_legacy_modeset_state(dev, state);
@@ -4016,11 +4019,10 @@ void amdgpu_dm_atomic_commit_tail(
        dm_state = to_dm_atomic_state(state);
 
        /* update changed items */
-       for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
+       for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
                struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
-               struct drm_crtc_state *new_state = crtc->state;
 
-               new_acrtc_state = to_dm_crtc_state(new_state);
+               new_acrtc_state = to_dm_crtc_state(new_crtc_state);
                old_acrtc_state = to_dm_crtc_state(old_crtc_state);
 
                DRM_DEBUG_DRIVER(
@@ -4028,18 +4030,18 @@ void amdgpu_dm_atomic_commit_tail(
                        "planes_changed:%d, mode_changed:%d,active_changed:%d,"
                        "connectors_changed:%d\n",
                        acrtc->crtc_id,
-                       new_state->enable,
-                       new_state->active,
-                       new_state->planes_changed,
-                       new_state->mode_changed,
-                       new_state->active_changed,
-                       new_state->connectors_changed);
+                       new_crtc_state->enable,
+                       new_crtc_state->active,
+                       new_crtc_state->planes_changed,
+                       new_crtc_state->mode_changed,
+                       new_crtc_state->active_changed,
+                       new_crtc_state->connectors_changed);
 
                /* handles headless hotplug case, updating new_state and
                 * aconnector as needed
                 */
 
-               if (modeset_required(new_state, new_acrtc_state->stream, old_acrtc_state->stream)) {
+               if (modeset_required(new_crtc_state, new_acrtc_state->stream, old_acrtc_state->stream)) {
 
                        DRM_DEBUG_DRIVER("Atomic commit: SET crtc id %d: [%p]\n", acrtc->crtc_id, acrtc);
 
@@ -4082,10 +4084,11 @@ void amdgpu_dm_atomic_commit_tail(
                        new_crtcs[new_crtcs_count] = acrtc;
                        new_crtcs_count++;
 
+                       new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
                        acrtc->enabled = true;
-                       acrtc->hw_mode = crtc->state->mode;
-                       crtc->hwmode = crtc->state->mode;
-               } else if (modereset_required(new_state)) {
+                       acrtc->hw_mode = new_crtc_state->mode;
+                       crtc->hwmode = new_crtc_state->mode;
+               } else if (modereset_required(new_crtc_state)) {
                        DRM_DEBUG_DRIVER("Atomic commit: RESET. crtc id %d:[%p]\n", acrtc->crtc_id, acrtc);
 
                        /* i.e. reset mode */
@@ -4102,7 +4105,9 @@ void amdgpu_dm_atomic_commit_tail(
                for (i = 0; i < new_crtcs_count; i++) {
                        struct amdgpu_dm_connector *aconnector = NULL;
 
-                       new_acrtc_state = to_dm_crtc_state(new_crtcs[i]->base.state);
+                       new_crtc_state = drm_atomic_get_new_crtc_state(state,
+                                       &new_crtcs[i]->base);
+                       new_acrtc_state = to_dm_crtc_state(new_crtc_state);
 
                        new_stream = new_acrtc_state->stream;
                        aconnector = amdgpu_dm_find_first_crct_matching_connector(
@@ -4123,11 +4128,10 @@ void amdgpu_dm_atomic_commit_tail(
        if (dm_state->context)
                WARN_ON(!dc_commit_state(dm->dc, dm_state->context));
 
-
-       list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+       for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
                struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
 
-               new_acrtc_state = to_dm_crtc_state(crtc->state);
+               new_acrtc_state = to_dm_crtc_state(new_crtc_state);
 
                if (new_acrtc_state->stream != NULL) {
                        const struct dc_stream_status *status =
@@ -4141,24 +4145,24 @@ void amdgpu_dm_atomic_commit_tail(
        }
 
        /* Handle scaling and undersacn 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);
-               struct dm_connector_state *con_old_state =
-                               to_dm_connector_state(old_conn_state);
+       for_each_oldnew_connector_in_state(state, connector, old_conn_state, new_con_state, i) {
+               struct dm_connector_state *con_new_state = to_dm_connector_state(new_con_state);
+               struct dm_connector_state *con_old_state = to_dm_connector_state(old_conn_state);
                struct amdgpu_crtc *acrtc = to_amdgpu_crtc(con_new_state->base.crtc);
                struct dc_stream_status *status = NULL;
 
+               if (acrtc)
+                       new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+
                /* Skip any modesets/resets */
-               if (!acrtc || drm_atomic_crtc_needs_modeset(acrtc->base.state))
+               if (!acrtc || drm_atomic_crtc_needs_modeset(new_crtc_state))
                        continue;
 
                /* Skip any thing not scale or underscan changes */
                if (!is_scaling_state_different(con_new_state, con_old_state))
                        continue;
 
-               new_acrtc_state = to_dm_crtc_state(acrtc->base.state);
+               new_acrtc_state = to_dm_crtc_state(new_crtc_state);
 
                update_stream_scaling_settings(&con_new_state->base.crtc->mode,
                                con_new_state, (struct dc_stream_state *)new_acrtc_state->stream);
@@ -4185,7 +4189,8 @@ void amdgpu_dm_atomic_commit_tail(
                 */
                struct amdgpu_crtc *acrtc = new_crtcs[i];
 
-               new_acrtc_state = to_dm_crtc_state(acrtc->base.state);
+               new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+               new_acrtc_state = to_dm_crtc_state(new_crtc_state);
 
                if (adev->dm.freesync_module)
                        mod_freesync_notify_mode_change(
@@ -4195,8 +4200,8 @@ void amdgpu_dm_atomic_commit_tail(
        }
 
        /* update planes when needed per crtc*/
-       for_each_old_crtc_in_state(state, pcrtc, old_crtc_state, j) {
-               new_acrtc_state = to_dm_crtc_state(pcrtc->state);
+       for_each_new_crtc_in_state(state, pcrtc, new_crtc_state, j) {
+               new_acrtc_state = to_dm_crtc_state(new_crtc_state);
 
                if (new_acrtc_state->stream)
                        amdgpu_dm_commit_planes(state, dev, dm, pcrtc, &wait_for_vblank);
@@ -4208,13 +4213,12 @@ 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_old_crtc_in_state(state, crtc, old_crtc_state, i) {
-               struct amdgpu_crtc *acrtc = to_amdgpu_crtc(crtc);
+       for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
 
-               if (acrtc->base.state->event)
-                       drm_send_event_locked(dev, &crtc->state->event->base);
+               if (new_crtc_state->event)
+                       drm_send_event_locked(dev, &new_crtc_state->event->base);
 
-               acrtc->base.state->event = NULL;
+               new_crtc_state->event = NULL;
        }
        spin_unlock_irqrestore(&adev->ddev->event_lock, flags);
 
@@ -4371,7 +4375,7 @@ static int dm_update_crtcs_state(
                bool *lock_and_validation_needed)
 {
        struct drm_crtc *crtc;
-       struct drm_crtc_state *crtc_state;
+       struct drm_crtc_state *old_crtc_state, *crtc_state;
        int i;
        struct dm_crtc_state *old_acrtc_state, *new_acrtc_state;
        struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
@@ -4380,7 +4384,7 @@ static int dm_update_crtcs_state(
 
        /*TODO Move this code into dm_crtc_atomic_check once we get rid of dc_validation_set */
        /* update changed items */
-       for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
+       for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) {
                struct amdgpu_crtc *acrtc = NULL;
                struct amdgpu_dm_connector *aconnector = NULL;
                struct drm_connector_state *conn_state = NULL;
@@ -4388,7 +4392,7 @@ static int dm_update_crtcs_state(
 
                new_stream = NULL;
 
-               old_acrtc_state = to_dm_crtc_state(crtc->state);
+               old_acrtc_state = to_dm_crtc_state(old_crtc_state);
                new_acrtc_state = to_dm_crtc_state(crtc_state);
                acrtc = to_amdgpu_crtc(crtc);
 
@@ -4521,7 +4525,7 @@ static int dm_update_planes_state(
                bool *lock_and_validation_needed)
 {
        struct drm_crtc *new_plane_crtc, *old_plane_crtc;
-       struct drm_crtc_state *new_crtc_state;
+       struct drm_crtc_state *old_crtc_state, *new_crtc_state;
        struct drm_plane *plane;
        struct drm_plane_state *old_plane_state, *new_plane_state;
        struct dm_crtc_state *new_acrtc_state, *old_acrtc_state;
@@ -4552,10 +4556,9 @@ static int dm_update_planes_state(
                        if (!old_plane_crtc)
                                continue;
 
-                       old_acrtc_state = to_dm_crtc_state(
-                                       drm_atomic_get_old_crtc_state(
-                                                       state,
-                                                       old_plane_crtc));
+                       old_crtc_state = drm_atomic_get_old_crtc_state(
+                                       state, old_plane_crtc);
+                       old_acrtc_state = to_dm_crtc_state(old_crtc_state);
 
                        if (!old_acrtc_state->stream)
                                continue;
@@ -4643,7 +4646,7 @@ int amdgpu_dm_atomic_check(struct drm_device *dev,
        struct dc *dc = adev->dm.dc;
        struct dm_atomic_state *dm_state = to_dm_atomic_state(state);
        struct drm_connector *connector;
-       struct drm_connector_state *conn_state;
+       struct drm_connector_state *old_con_state, *conn_state;
        struct drm_crtc *crtc;
        struct drm_crtc_state *crtc_state;
 
@@ -4710,16 +4713,14 @@ int amdgpu_dm_atomic_check(struct drm_device *dev,
         * new stream into context w\o causing full reset. Need to
         * decide how to handle.
         */
-       for_each_new_connector_in_state(state, connector, conn_state, i) {
-               struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
-               struct dm_connector_state *con_old_state =
-                               to_dm_connector_state(aconnector->base.state);
-               struct dm_connector_state *con_new_state =
-                                               to_dm_connector_state(conn_state);
+       for_each_oldnew_connector_in_state(state, connector, old_con_state, conn_state, i) {
+               struct dm_connector_state *con_old_state = to_dm_connector_state(old_con_state);
+               struct dm_connector_state *con_new_state = to_dm_connector_state(conn_state);
                struct amdgpu_crtc *acrtc = to_amdgpu_crtc(con_new_state->base.crtc);
 
                /* Skip any modesets/resets */
-               if (!acrtc || drm_atomic_crtc_needs_modeset(acrtc->base.state))
+               if (!acrtc || drm_atomic_crtc_needs_modeset(
+                               drm_atomic_get_new_crtc_state(state, &acrtc->base)))
                        continue;
 
                /* Skip any thing not scale or underscan changes */