diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c | 176 |
1 files changed, 0 insertions, 176 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c deleted file mode 100644 index ff52c49..0000000 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_pipe.c +++ /dev/null @@ -1,176 +0,0 @@ -/* - * Copyright (C) 2016 Red Hat - * Author: Rob Clark <robdclark@gmail.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "mdp5_kms.h" - -int mdp5_pipe_assign(struct drm_atomic_state *s, struct drm_plane *plane, - uint32_t caps, uint32_t blkcfg, - struct mdp5_hw_pipe **hwpipe, - struct mdp5_hw_pipe **r_hwpipe) -{ - struct msm_drm_private *priv = s->dev->dev_private; - struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state; - struct mdp5_hw_pipe_state *old_state, *new_state; - int i, j; - - state = mdp5_get_state(s); - if (IS_ERR(state)) - return PTR_ERR(state); - - /* grab old_state after mdp5_get_state(), since now we hold lock: */ - old_state = &mdp5_kms->state->hwpipe; - new_state = &state->hwpipe; - - for (i = 0; i < mdp5_kms->num_hwpipes; i++) { - struct mdp5_hw_pipe *cur = mdp5_kms->hwpipes[i]; - - /* skip if already in-use.. check both new and old state, - * since we cannot immediately re-use a pipe that is - * released in the current update in some cases: - * (1) mdp5 can have SMP (non-double-buffered) - * (2) hw pipe previously assigned to different CRTC - * (vblanks might not be aligned) - */ - if (new_state->hwpipe_to_plane[cur->idx] || - old_state->hwpipe_to_plane[cur->idx]) - continue; - - /* skip if doesn't support some required caps: */ - if (caps & ~cur->caps) - continue; - - /* - * don't assign a cursor pipe to a plane that isn't going to - * be used as a cursor - */ - if (cur->caps & MDP_PIPE_CAP_CURSOR && - plane->type != DRM_PLANE_TYPE_CURSOR) - continue; - - /* possible candidate, take the one with the - * fewest unneeded caps bits set: - */ - if (!(*hwpipe) || (hweight_long(cur->caps & ~caps) < - hweight_long((*hwpipe)->caps & ~caps))) { - bool r_found = false; - - if (r_hwpipe) { - for (j = i + 1; j < mdp5_kms->num_hwpipes; - j++) { - struct mdp5_hw_pipe *r_cur = - mdp5_kms->hwpipes[j]; - - /* reject different types of hwpipes */ - if (r_cur->caps != cur->caps) - continue; - - /* respect priority, eg. VIG0 > VIG1 */ - if (cur->pipe > r_cur->pipe) - continue; - - *r_hwpipe = r_cur; - r_found = true; - break; - } - } - - if (!r_hwpipe || r_found) - *hwpipe = cur; - } - } - - if (!(*hwpipe)) - return -ENOMEM; - - if (r_hwpipe && !(*r_hwpipe)) - return -ENOMEM; - - if (mdp5_kms->smp) { - int ret; - - /* We don't support SMP and 2 hwpipes/plane together */ - WARN_ON(r_hwpipe); - - DBG("%s: alloc SMP blocks", (*hwpipe)->name); - ret = mdp5_smp_assign(mdp5_kms->smp, &state->smp, - (*hwpipe)->pipe, blkcfg); - if (ret) - return -ENOMEM; - - (*hwpipe)->blkcfg = blkcfg; - } - - DBG("%s: assign to plane %s for caps %x", - (*hwpipe)->name, plane->name, caps); - new_state->hwpipe_to_plane[(*hwpipe)->idx] = plane; - - if (r_hwpipe) { - DBG("%s: assign to right of plane %s for caps %x", - (*r_hwpipe)->name, plane->name, caps); - new_state->hwpipe_to_plane[(*r_hwpipe)->idx] = plane; - } - - return 0; -} - -void mdp5_pipe_release(struct drm_atomic_state *s, struct mdp5_hw_pipe *hwpipe) -{ - struct msm_drm_private *priv = s->dev->dev_private; - struct mdp5_kms *mdp5_kms = to_mdp5_kms(to_mdp_kms(priv->kms)); - struct mdp5_state *state = mdp5_get_state(s); - struct mdp5_hw_pipe_state *new_state = &state->hwpipe; - - if (!hwpipe) - return; - - if (WARN_ON(!new_state->hwpipe_to_plane[hwpipe->idx])) - return; - - DBG("%s: release from plane %s", hwpipe->name, - new_state->hwpipe_to_plane[hwpipe->idx]->name); - - if (mdp5_kms->smp) { - DBG("%s: free SMP blocks", hwpipe->name); - mdp5_smp_release(mdp5_kms->smp, &state->smp, hwpipe->pipe); - } - - new_state->hwpipe_to_plane[hwpipe->idx] = NULL; -} - -void mdp5_pipe_destroy(struct mdp5_hw_pipe *hwpipe) -{ - kfree(hwpipe); -} - -struct mdp5_hw_pipe *mdp5_pipe_init(enum mdp5_pipe pipe, - uint32_t reg_offset, uint32_t caps) -{ - struct mdp5_hw_pipe *hwpipe; - - hwpipe = kzalloc(sizeof(*hwpipe), GFP_KERNEL); - if (!hwpipe) - return ERR_PTR(-ENOMEM); - - hwpipe->name = pipe2name(pipe); - hwpipe->pipe = pipe; - hwpipe->reg_offset = reg_offset; - hwpipe->caps = caps; - hwpipe->flush_mask = mdp_ctl_flush_mask_pipe(pipe); - - return hwpipe; -} |
