[PATCH 2/6] drm/amd/display: Use new DRM API where possible
Harry Wentland
harry.wentland at amd.com
Fri Oct 13 18:31:25 UTC 2017
On 2017-10-13 01:26 PM, Andrey Grodzovsky wrote:
>
>
> On 10/13/2017 12:18 PM, Harry Wentland wrote:
>> On 2017-10-12 05:15 PM, sunpeng.li at amd.com wrote:
>>> From: "Leo (Sunpeng) Li" <sunpeng.li at amd.com>
>>>
>>> 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.
>>>
>>> Signed-off-by: Leo (Sunpeng) Li <sunpeng.li at amd.com>
>>> ---
>>> drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 131 +++++++++++-----------
>>> 1 file changed, 66 insertions(+), 65 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 cc024ab..d4426b3 100644
>>> --- 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) {
>> Andrey might be able to comment on this better, but weren't we intentionally
>> trying to iterate the old crtc here to make sure we send any even on it?
>>
>> Harry
>
> The states we are interested in are still the new states because that where the event we want
> to send resides (drm_send_event_locked(dev, &crtc->state->event->base), with the introduction of for_each_new*
> iterators we should use them to iterate the new states.
>
I think this just looked odd because of the patches were structured but
the logic is sound.
Series is
Reviewed-by: Harry Wentland <harry.wentland at amd.com>
Harry
> Thanks,
> Andrey
>
>>
>>> - 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 */
>>>
>
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