diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 122 |
1 files changed, 98 insertions, 24 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 80b19c304c43..7dfeb458aa65 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -346,7 +346,10 @@ static enum pipe bigjoiner_master_pipe(const struct intel_crtc_state *crtc_state u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state) { - return crtc_state->bigjoiner_pipes & ~BIT(bigjoiner_master_pipe(crtc_state)); + if (crtc_state->bigjoiner_pipes) + return crtc_state->bigjoiner_pipes & ~BIT(bigjoiner_master_pipe(crtc_state)); + else + return 0; } bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state) @@ -1260,10 +1263,8 @@ static void intel_crtc_enable_flip_done(struct intel_atomic_state *state, int i; for_each_new_intel_plane_in_state(state, plane, plane_state, i) { - if (plane->enable_flip_done && - plane->pipe == crtc->pipe && - update_planes & BIT(plane->id) && - plane_state->do_async_flip) + if (plane->pipe == crtc->pipe && + update_planes & BIT(plane->id)) plane->enable_flip_done(plane); } } @@ -1279,10 +1280,8 @@ static void intel_crtc_disable_flip_done(struct intel_atomic_state *state, int i; for_each_new_intel_plane_in_state(state, plane, plane_state, i) { - if (plane->disable_flip_done && - plane->pipe == crtc->pipe && - update_planes & BIT(plane->id) && - plane_state->do_async_flip) + if (plane->pipe == crtc->pipe && + update_planes & BIT(plane->id)) plane->disable_flip_done(plane); } } @@ -7398,7 +7397,7 @@ static void kill_bigjoiner_slave(struct intel_atomic_state *state, * Correspondingly, support is currently added for primary plane only. * * Async flip can only change the plane surface address, so anything else - * changing is rejected from the intel_atomic_check_async() function. + * changing is rejected from the intel_async_flip_check_hw() function. * Once this check is cleared, flip done interrupt is enabled using * the intel_crtc_enable_flip_done() function. * @@ -7408,7 +7407,65 @@ static void kill_bigjoiner_slave(struct intel_atomic_state *state, * correspond to the last vblank and have no relation to the actual time when * the flip done event was sent. */ -static int intel_atomic_check_async(struct intel_atomic_state *state, struct intel_crtc *crtc) +static int intel_async_flip_check_uapi(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_plane_state *old_plane_state; + struct intel_plane_state *new_plane_state; + struct intel_plane *plane; + int i; + + if (!new_crtc_state->uapi.async_flip) + return 0; + + if (!new_crtc_state->uapi.active) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] not active\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + if (intel_crtc_needs_modeset(new_crtc_state)) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] modeset required\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, + new_plane_state, i) { + if (plane->pipe != crtc->pipe) + continue; + + /* + * TODO: Async flip is only supported through the page flip IOCTL + * as of now. So support currently added for primary plane only. + * Support for other planes on platforms on which supports + * this(vlv/chv and icl+) should be added when async flip is + * enabled in the atomic IOCTL path. + */ + if (!plane->async_flip) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] async flip not supported\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (!old_plane_state->uapi.fb || !new_plane_state->uapi.fb) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] no old or new framebuffer\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + } + + return 0; +} + +static int intel_async_flip_check_hw(struct intel_atomic_state *state, struct intel_crtc *crtc) { struct drm_i915_private *i915 = to_i915(state->base.dev); const struct intel_crtc_state *old_crtc_state, *new_crtc_state; @@ -7419,6 +7476,9 @@ static int intel_atomic_check_async(struct intel_atomic_state *state, struct int old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + if (!new_crtc_state->uapi.async_flip) + return 0; + if (intel_crtc_needs_modeset(new_crtc_state)) { drm_dbg_kms(&i915->drm, "Modeset Required. Async flip not supported\n"); return -EINVAL; @@ -7440,16 +7500,26 @@ static int intel_atomic_check_async(struct intel_atomic_state *state, struct int continue; /* - * TODO: Async flip is only supported through the page flip IOCTL - * as of now. So support currently added for primary plane only. - * Support for other planes on platforms on which supports - * this(vlv/chv and icl+) should be added when async flip is - * enabled in the atomic IOCTL path. + * Only async flip capable planes should be in the state + * if we're really about to ask the hardware to perform + * an async flip. We should never get this far otherwise. */ - if (!plane->async_flip) + if (drm_WARN_ON(&i915->drm, + new_crtc_state->do_async_flip && !plane->async_flip)) return -EINVAL; /* + * Only check async flip capable planes other planes + * may be involved in the initial commit due to + * the wm0/ddb optimization. + * + * TODO maybe should track which planes actually + * were requested to do the async flip... + */ + if (!plane->async_flip) + continue; + + /* * FIXME: This check is kept generic for all platforms. * Need to verify this for all gen9 platforms to enable * this selectively if required. @@ -7613,6 +7683,12 @@ static int intel_atomic_check(struct drm_device *dev, if (ret) goto fail; + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + ret = intel_async_flip_check_uapi(state, crtc); + if (ret) + return ret; + } + ret = intel_bigjoiner_add_affected_crtcs(state); if (ret) goto fail; @@ -7769,11 +7845,9 @@ static int intel_atomic_check(struct drm_device *dev, for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { - if (new_crtc_state->uapi.async_flip) { - ret = intel_atomic_check_async(state, crtc); - if (ret) - goto fail; - } + ret = intel_async_flip_check_hw(state, crtc); + if (ret) + goto fail; if (!intel_crtc_needs_modeset(new_crtc_state) && !new_crtc_state->update_pipe) @@ -8395,7 +8469,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) intel_dbuf_pre_plane_update(state); for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { - if (new_crtc_state->uapi.async_flip) + if (new_crtc_state->do_async_flip) intel_crtc_enable_flip_done(state, crtc); } @@ -8421,7 +8495,7 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state) drm_atomic_helper_wait_for_flip_done(dev, &state->base); for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { - if (new_crtc_state->uapi.async_flip) + if (new_crtc_state->do_async_flip) intel_crtc_disable_flip_done(state, crtc); } |