diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2020-12-04 16:11:36 +0100 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2020-12-15 11:36:11 +0100 |
| commit | 03b03efebeed3a928e168505d32939f35055264a (patch) | |
| tree | 3078aefc840ec0d81ac743c82babd9b5ce56d570 /drivers/gpu/drm/vc4/vc4_kms.c | |
| parent | 9ec03d7f1ed394897891319a4dda75f52c5d292d (diff) | |
drm/vc4: kms: Remove unassigned_channels from the HVS state
The HVS state now has both unassigned_channels that reflects the
channels that are not used in the associated state, and the in_use
boolean for each channel that says whether or not a particular channel
is in use.
Both express pretty much the same thing, and we need the in_use variable
to properly track the commits, so let's get rid of unassigned_channels.
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20201204151138.1739736-6-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_kms.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_kms.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c index fdd698df5fbe..5d81b90383a0 100644 --- a/drivers/gpu/drm/vc4/vc4_kms.c +++ b/drivers/gpu/drm/vc4/vc4_kms.c @@ -39,7 +39,6 @@ static struct vc4_ctm_state *to_vc4_ctm_state(struct drm_private_state *priv) struct vc4_hvs_state { struct drm_private_state base; - unsigned int unassigned_channels; struct { unsigned in_use: 1; @@ -798,7 +797,6 @@ vc4_hvs_channels_duplicate_state(struct drm_private_obj *obj) __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base); - state->unassigned_channels = old_state->unassigned_channels; for (i = 0; i < HVS_NUM_CHANNELS; i++) { state->fifo_state[i].in_use = old_state->fifo_state[i].in_use; @@ -849,7 +847,6 @@ static int vc4_hvs_channels_obj_init(struct vc4_dev *vc4) if (!state) return -ENOMEM; - state->unassigned_channels = GENMASK(HVS_NUM_CHANNELS - 1, 0); drm_atomic_private_obj_init(&vc4->base, &vc4->hvs_channels, &state->base, &vc4_hvs_state_funcs); @@ -893,12 +890,17 @@ static int vc4_pv_muxing_atomic_check(struct drm_device *dev, struct vc4_hvs_state *hvs_new_state; struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct drm_crtc *crtc; + unsigned int unassigned_channels = 0; unsigned int i; hvs_new_state = vc4_hvs_get_global_state(state); if (!hvs_new_state) return -EINVAL; + for (i = 0; i < ARRAY_SIZE(hvs_new_state->fifo_state); i++) + if (!hvs_new_state->fifo_state[i].in_use) + unassigned_channels |= BIT(i); + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { struct vc4_crtc_state *old_vc4_crtc_state = to_vc4_crtc_state(old_crtc_state); @@ -918,8 +920,6 @@ static int vc4_pv_muxing_atomic_check(struct drm_device *dev, /* If we're disabling our CRTC, we put back our channel */ if (!new_crtc_state->enable) { channel = old_vc4_crtc_state->assigned_channel; - - hvs_new_state->unassigned_channels |= BIT(channel); hvs_new_state->fifo_state[channel].in_use = false; new_vc4_crtc_state->assigned_channel = VC4_HVS_CHANNEL_DISABLED; continue; @@ -949,13 +949,13 @@ static int vc4_pv_muxing_atomic_check(struct drm_device *dev, * the future, we will need to have something smarter, * but it works so far. */ - matching_channels = hvs_new_state->unassigned_channels & vc4_crtc->data->hvs_available_channels; + matching_channels = unassigned_channels & vc4_crtc->data->hvs_available_channels; if (!matching_channels) return -EINVAL; channel = ffs(matching_channels) - 1; new_vc4_crtc_state->assigned_channel = channel; - hvs_new_state->unassigned_channels &= ~BIT(channel); + unassigned_channels &= ~BIT(channel); hvs_new_state->fifo_state[channel].in_use = true; } |