diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_atomic.c | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c deleted file mode 100644 index 8cb02f28d30c..000000000000 --- a/drivers/gpu/drm/i915/intel_atomic.c +++ /dev/null @@ -1,408 +0,0 @@ -/* - * Copyright © 2015 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -/** - * DOC: atomic modeset support - * - * The functions here implement the state management and hardware programming - * dispatch required by the atomic modeset infrastructure. - * See intel_atomic_plane.c for the plane-specific atomic functionality. - */ - -#include <drm/drmP.h> -#include <drm/drm_atomic.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_plane_helper.h> -#include "intel_drv.h" - -/** - * intel_digital_connector_atomic_get_property - hook for connector->atomic_get_property. - * @connector: Connector to get the property for. - * @state: Connector state to retrieve the property from. - * @property: Property to retrieve. - * @val: Return value for the property. - * - * Returns the atomic property value for a digital connector. - */ -int intel_digital_connector_atomic_get_property(struct drm_connector *connector, - const struct drm_connector_state *state, - struct drm_property *property, - uint64_t *val) -{ - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_digital_connector_state *intel_conn_state = - to_intel_digital_connector_state(state); - - if (property == dev_priv->force_audio_property) - *val = intel_conn_state->force_audio; - else if (property == dev_priv->broadcast_rgb_property) - *val = intel_conn_state->broadcast_rgb; - else { - DRM_DEBUG_ATOMIC("Unknown property [PROP:%d:%s]\n", - property->base.id, property->name); - return -EINVAL; - } - - return 0; -} - -/** - * intel_digital_connector_atomic_set_property - hook for connector->atomic_set_property. - * @connector: Connector to set the property for. - * @state: Connector state to set the property on. - * @property: Property to set. - * @val: New value for the property. - * - * Sets the atomic property value for a digital connector. - */ -int intel_digital_connector_atomic_set_property(struct drm_connector *connector, - struct drm_connector_state *state, - struct drm_property *property, - uint64_t val) -{ - struct drm_device *dev = connector->dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct intel_digital_connector_state *intel_conn_state = - to_intel_digital_connector_state(state); - - if (property == dev_priv->force_audio_property) { - intel_conn_state->force_audio = val; - return 0; - } - - if (property == dev_priv->broadcast_rgb_property) { - intel_conn_state->broadcast_rgb = val; - return 0; - } - - DRM_DEBUG_ATOMIC("Unknown property [PROP:%d:%s]\n", - property->base.id, property->name); - return -EINVAL; -} - -int intel_digital_connector_atomic_check(struct drm_connector *conn, - struct drm_connector_state *new_state) -{ - struct intel_digital_connector_state *new_conn_state = - to_intel_digital_connector_state(new_state); - struct drm_connector_state *old_state = - drm_atomic_get_old_connector_state(new_state->state, conn); - struct intel_digital_connector_state *old_conn_state = - to_intel_digital_connector_state(old_state); - struct drm_crtc_state *crtc_state; - - intel_hdcp_atomic_check(conn, old_state, new_state); - - if (!new_state->crtc) - return 0; - - crtc_state = drm_atomic_get_new_crtc_state(new_state->state, new_state->crtc); - - /* - * These properties are handled by fastset, and might not end - * up in a modeset. - */ - if (new_conn_state->force_audio != old_conn_state->force_audio || - new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb || - new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || - new_conn_state->base.content_type != old_conn_state->base.content_type || - new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode) - crtc_state->mode_changed = true; - - return 0; -} - -/** - * intel_digital_connector_duplicate_state - duplicate connector state - * @connector: digital connector - * - * Allocates and returns a copy of the connector state (both common and - * digital connector specific) for the specified connector. - * - * Returns: The newly allocated connector state, or NULL on failure. - */ -struct drm_connector_state * -intel_digital_connector_duplicate_state(struct drm_connector *connector) -{ - struct intel_digital_connector_state *state; - - state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL); - if (!state) - return NULL; - - __drm_atomic_helper_connector_duplicate_state(connector, &state->base); - return &state->base; -} - -/** - * intel_crtc_duplicate_state - duplicate crtc state - * @crtc: drm crtc - * - * Allocates and returns a copy of the crtc state (both common and - * Intel-specific) for the specified crtc. - * - * Returns: The newly allocated crtc state, or NULL on failure. - */ -struct drm_crtc_state * -intel_crtc_duplicate_state(struct drm_crtc *crtc) -{ - struct intel_crtc_state *crtc_state; - - crtc_state = kmemdup(crtc->state, sizeof(*crtc_state), GFP_KERNEL); - if (!crtc_state) - return NULL; - - __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->base); - - crtc_state->update_pipe = false; - crtc_state->disable_lp_wm = false; - crtc_state->disable_cxsr = false; - crtc_state->update_wm_pre = false; - crtc_state->update_wm_post = false; - crtc_state->fb_changed = false; - crtc_state->fifo_changed = false; - crtc_state->wm.need_postvbl_update = false; - crtc_state->fb_bits = 0; - crtc_state->update_planes = 0; - - return &crtc_state->base; -} - -/** - * intel_crtc_destroy_state - destroy crtc state - * @crtc: drm crtc - * @state: the state to destroy - * - * Destroys the crtc state (both common and Intel-specific) for the - * specified crtc. - */ -void -intel_crtc_destroy_state(struct drm_crtc *crtc, - struct drm_crtc_state *state) -{ - drm_atomic_helper_crtc_destroy_state(crtc, state); -} - -static void intel_atomic_setup_scaler(struct intel_crtc_scaler_state *scaler_state, - int num_scalers_need, struct intel_crtc *intel_crtc, - const char *name, int idx, - struct intel_plane_state *plane_state, - int *scaler_id) -{ - struct drm_i915_private *dev_priv = to_i915(intel_crtc->base.dev); - int j; - u32 mode; - - if (*scaler_id < 0) { - /* find a free scaler */ - for (j = 0; j < intel_crtc->num_scalers; j++) { - if (scaler_state->scalers[j].in_use) - continue; - - *scaler_id = j; - scaler_state->scalers[*scaler_id].in_use = 1; - break; - } - } - - if (WARN(*scaler_id < 0, "Cannot find scaler for %s:%d\n", name, idx)) - return; - - /* set scaler mode */ - if (plane_state && plane_state->base.fb && - plane_state->base.fb->format->is_yuv && - plane_state->base.fb->format->num_planes > 1) { - if (IS_GEN9(dev_priv) && - !IS_GEMINILAKE(dev_priv)) { - mode = SKL_PS_SCALER_MODE_NV12; - } else if (icl_is_hdr_plane(to_intel_plane(plane_state->base.plane))) { - /* - * On gen11+'s HDR planes we only use the scaler for - * scaling. They have a dedicated chroma upsampler, so - * we don't need the scaler to upsample the UV plane. - */ - mode = PS_SCALER_MODE_NORMAL; - } else { - mode = PS_SCALER_MODE_PLANAR; - - if (plane_state->linked_plane) - mode |= PS_PLANE_Y_SEL(plane_state->linked_plane->id); - } - } else if (INTEL_GEN(dev_priv) > 9 || IS_GEMINILAKE(dev_priv)) { - mode = PS_SCALER_MODE_NORMAL; - } else if (num_scalers_need == 1 && intel_crtc->num_scalers > 1) { - /* - * when only 1 scaler is in use on a pipe with 2 scalers - * scaler 0 operates in high quality (HQ) mode. - * In this case use scaler 0 to take advantage of HQ mode - */ - scaler_state->scalers[*scaler_id].in_use = 0; - *scaler_id = 0; - scaler_state->scalers[0].in_use = 1; - mode = SKL_PS_SCALER_MODE_HQ; - } else { - mode = SKL_PS_SCALER_MODE_DYN; - } - - DRM_DEBUG_KMS("Attached scaler id %u.%u to %s:%d\n", - intel_crtc->pipe, *scaler_id, name, idx); - scaler_state->scalers[*scaler_id].mode = mode; -} - -/** - * intel_atomic_setup_scalers() - setup scalers for crtc per staged requests - * @dev_priv: i915 device - * @intel_crtc: intel crtc - * @crtc_state: incoming crtc_state to validate and setup scalers - * - * This function sets up scalers based on staged scaling requests for - * a @crtc and its planes. It is called from crtc level check path. If request - * is a supportable request, it attaches scalers to requested planes and crtc. - * - * This function takes into account the current scaler(s) in use by any planes - * not being part of this atomic state - * - * Returns: - * 0 - scalers were setup succesfully - * error code - otherwise - */ -int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv, - struct intel_crtc *intel_crtc, - struct intel_crtc_state *crtc_state) -{ - struct drm_plane *plane = NULL; - struct intel_plane *intel_plane; - struct intel_plane_state *plane_state = NULL; - struct intel_crtc_scaler_state *scaler_state = - &crtc_state->scaler_state; - struct drm_atomic_state *drm_state = crtc_state->base.state; - struct intel_atomic_state *intel_state = to_intel_atomic_state(drm_state); - int num_scalers_need; - int i; - - num_scalers_need = hweight32(scaler_state->scaler_users); - - /* - * High level flow: - * - staged scaler requests are already in scaler_state->scaler_users - * - check whether staged scaling requests can be supported - * - add planes using scalers that aren't in current transaction - * - assign scalers to requested users - * - as part of plane commit, scalers will be committed - * (i.e., either attached or detached) to respective planes in hw - * - as part of crtc_commit, scaler will be either attached or detached - * to crtc in hw - */ - - /* fail if required scalers > available scalers */ - if (num_scalers_need > intel_crtc->num_scalers){ - DRM_DEBUG_KMS("Too many scaling requests %d > %d\n", - num_scalers_need, intel_crtc->num_scalers); - return -EINVAL; - } - - /* walkthrough scaler_users bits and start assigning scalers */ - for (i = 0; i < sizeof(scaler_state->scaler_users) * 8; i++) { - int *scaler_id; - const char *name; - int idx; - - /* skip if scaler not required */ - if (!(scaler_state->scaler_users & (1 << i))) - continue; - - if (i == SKL_CRTC_INDEX) { - name = "CRTC"; - idx = intel_crtc->base.base.id; - - /* panel fitter case: assign as a crtc scaler */ - scaler_id = &scaler_state->scaler_id; - } else { - name = "PLANE"; - - /* plane scaler case: assign as a plane scaler */ - /* find the plane that set the bit as scaler_user */ - plane = drm_state->planes[i].ptr; - - /* - * to enable/disable hq mode, add planes that are using scaler - * into this transaction - */ - if (!plane) { - struct drm_plane_state *state; - plane = drm_plane_from_index(&dev_priv->drm, i); - state = drm_atomic_get_plane_state(drm_state, plane); - if (IS_ERR(state)) { - DRM_DEBUG_KMS("Failed to add [PLANE:%d] to drm_state\n", - plane->base.id); - return PTR_ERR(state); - } - - /* - * the plane is added after plane checks are run, - * but since this plane is unchanged just do the - * minimum required validation. - */ - crtc_state->base.planes_changed = true; - } - - intel_plane = to_intel_plane(plane); - idx = plane->base.id; - - /* plane on different crtc cannot be a scaler user of this crtc */ - if (WARN_ON(intel_plane->pipe != intel_crtc->pipe)) - continue; - - plane_state = intel_atomic_get_new_plane_state(intel_state, - intel_plane); - scaler_id = &plane_state->scaler_id; - } - - intel_atomic_setup_scaler(scaler_state, num_scalers_need, - intel_crtc, name, idx, - plane_state, scaler_id); - } - - return 0; -} - -struct drm_atomic_state * -intel_atomic_state_alloc(struct drm_device *dev) -{ - struct intel_atomic_state *state = kzalloc(sizeof(*state), GFP_KERNEL); - - if (!state || drm_atomic_state_init(dev, &state->base) < 0) { - kfree(state); - return NULL; - } - - return &state->base; -} - -void intel_atomic_state_clear(struct drm_atomic_state *s) -{ - struct intel_atomic_state *state = to_intel_atomic_state(s); - drm_atomic_state_default_clear(&state->base); - state->dpll_set = state->modeset = false; -} |