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ubuntu-linux-kernel/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c

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/*
* Copyright (c) 2014-2015 The Linux Foundation. All rights reserved.
* Copyright (C) 2013 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 <linux/sort.h>
#include <drm/drm_mode.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_flip_work.h>
#include "mdp5_kms.h"
#define CURSOR_WIDTH 64
#define CURSOR_HEIGHT 64
struct mdp5_crtc {
struct drm_crtc base;
int id;
bool enabled;
spinlock_t lm_lock; /* protect REG_MDP5_LM_* registers */
/* if there is a pending flip, these will be non-null: */
struct drm_pending_vblank_event *event;
/* Bits have been flushed at the last commit,
* used to decide if a vsync has happened since last commit.
*/
u32 flushed_mask;
#define PENDING_CURSOR 0x1
#define PENDING_FLIP 0x2
atomic_t pending;
/* for unref'ing cursor bo's after scanout completes: */
struct drm_flip_work unref_cursor_work;
struct mdp_irq vblank;
struct mdp_irq err;
struct mdp_irq pp_done;
struct completion pp_completion;
bool lm_cursor_enabled;
struct {
/* protect REG_MDP5_LM_CURSOR* registers and cursor scanout_bo*/
spinlock_t lock;
/* current cursor being scanned out: */
struct drm_gem_object *scanout_bo;
uint64_t iova;
uint32_t width, height;
uint32_t x, y;
} cursor;
};
#define to_mdp5_crtc(x) container_of(x, struct mdp5_crtc, base)
static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc);
static struct mdp5_kms *get_kms(struct drm_crtc *crtc)
{
struct msm_drm_private *priv = crtc->dev->dev_private;
return to_mdp5_kms(to_mdp_kms(priv->kms));
}
static void request_pending(struct drm_crtc *crtc, uint32_t pending)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
atomic_or(pending, &mdp5_crtc->pending);
mdp_irq_register(&get_kms(crtc)->base, &mdp5_crtc->vblank);
}
static void request_pp_done_pending(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
reinit_completion(&mdp5_crtc->pp_completion);
}
static u32 crtc_flush(struct drm_crtc *crtc, u32 flush_mask)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_ctl *ctl = mdp5_cstate->ctl;
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
DBG("%s: flush=%08x", crtc->name, flush_mask);
return mdp5_ctl_commit(ctl, pipeline, flush_mask);
}
/*
* flush updates, to make sure hw is updated to new scanout fb,
* so that we can safely queue unref to current fb (ie. next
* vblank we know hw is done w/ previous scanout_fb).
*/
static u32 crtc_flush_all(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_hw_mixer *mixer, *r_mixer;
struct drm_plane *plane;
uint32_t flush_mask = 0;
/* this should not happen: */
if (WARN_ON(!mdp5_cstate->ctl))
return 0;
drm_atomic_crtc_for_each_plane(plane, crtc) {
if (!plane->state->visible)
continue;
flush_mask |= mdp5_plane_get_flush(plane);
}
mixer = mdp5_cstate->pipeline.mixer;
flush_mask |= mdp_ctl_flush_mask_lm(mixer->lm);
r_mixer = mdp5_cstate->pipeline.r_mixer;
if (r_mixer)
flush_mask |= mdp_ctl_flush_mask_lm(r_mixer->lm);
return crtc_flush(crtc, flush_mask);
}
/* if file!=NULL, this is preclose potential cancel-flip path */
static void complete_flip(struct drm_crtc *crtc, struct drm_file *file)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_ctl *ctl = mdp5_cstate->ctl;
struct drm_device *dev = crtc->dev;
struct drm_pending_vblank_event *event;
unsigned long flags;
spin_lock_irqsave(&dev->event_lock, flags);
event = mdp5_crtc->event;
if (event) {
mdp5_crtc->event = NULL;
DBG("%s: send event: %p", crtc->name, event);
drm_crtc_send_vblank_event(crtc, event);
}
spin_unlock_irqrestore(&dev->event_lock, flags);
if (ctl && !crtc->state->enable) {
/* set STAGE_UNUSED for all layers */
mdp5_ctl_blend(ctl, pipeline, NULL, NULL, 0, 0);
/* XXX: What to do here? */
/* mdp5_crtc->ctl = NULL; */
}
}
static void unref_cursor_worker(struct drm_flip_work *work, void *val)
{
struct mdp5_crtc *mdp5_crtc =
container_of(work, struct mdp5_crtc, unref_cursor_work);
struct mdp5_kms *mdp5_kms = get_kms(&mdp5_crtc->base);
struct msm_kms *kms = &mdp5_kms->base.base;
msm_gem_put_iova(val, kms->aspace);
drm_gem_object_unreference_unlocked(val);
}
static void mdp5_crtc_destroy(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
drm_crtc_cleanup(crtc);
drm_flip_work_cleanup(&mdp5_crtc->unref_cursor_work);
kfree(mdp5_crtc);
}
static inline u32 mdp5_lm_use_fg_alpha_mask(enum mdp_mixer_stage_id stage)
{
switch (stage) {
case STAGE0: return MDP5_LM_BLEND_COLOR_OUT_STAGE0_FG_ALPHA;
case STAGE1: return MDP5_LM_BLEND_COLOR_OUT_STAGE1_FG_ALPHA;
case STAGE2: return MDP5_LM_BLEND_COLOR_OUT_STAGE2_FG_ALPHA;
case STAGE3: return MDP5_LM_BLEND_COLOR_OUT_STAGE3_FG_ALPHA;
case STAGE4: return MDP5_LM_BLEND_COLOR_OUT_STAGE4_FG_ALPHA;
case STAGE5: return MDP5_LM_BLEND_COLOR_OUT_STAGE5_FG_ALPHA;
case STAGE6: return MDP5_LM_BLEND_COLOR_OUT_STAGE6_FG_ALPHA;
default:
return 0;
}
}
/*
* left/right pipe offsets for the stage array used in blend_setup()
*/
#define PIPE_LEFT 0
#define PIPE_RIGHT 1
/*
* blend_setup() - blend all the planes of a CRTC
*
* If no base layer is available, border will be enabled as the base layer.
* Otherwise all layers will be blended based on their stage calculated
* in mdp5_crtc_atomic_check.
*/
static void blend_setup(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct drm_plane *plane;
const struct mdp5_cfg_hw *hw_cfg;
struct mdp5_plane_state *pstate, *pstates[STAGE_MAX + 1] = {NULL};
const struct mdp_format *format;
struct mdp5_hw_mixer *mixer = pipeline->mixer;
uint32_t lm = mixer->lm;
struct mdp5_hw_mixer *r_mixer = pipeline->r_mixer;
uint32_t r_lm = r_mixer ? r_mixer->lm : 0;
struct mdp5_ctl *ctl = mdp5_cstate->ctl;
uint32_t blend_op, fg_alpha, bg_alpha, ctl_blend_flags = 0;
unsigned long flags;
enum mdp5_pipe stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
enum mdp5_pipe r_stage[STAGE_MAX + 1][MAX_PIPE_STAGE] = { { SSPP_NONE } };
int i, plane_cnt = 0;
bool bg_alpha_enabled = false;
u32 mixer_op_mode = 0;
u32 val;
#define blender(stage) ((stage) - STAGE0)
hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
/* ctl could be released already when we are shutting down: */
/* XXX: Can this happen now? */
if (!ctl)
goto out;
/* Collect all plane information */
drm_atomic_crtc_for_each_plane(plane, crtc) {
enum mdp5_pipe right_pipe;
if (!plane->state->visible)
continue;
pstate = to_mdp5_plane_state(plane->state);
pstates[pstate->stage] = pstate;
stage[pstate->stage][PIPE_LEFT] = mdp5_plane_pipe(plane);
/*
* if we have a right mixer, stage the same pipe as we
* have on the left mixer
*/
if (r_mixer)
r_stage[pstate->stage][PIPE_LEFT] =
mdp5_plane_pipe(plane);
/*
* if we have a right pipe (i.e, the plane comprises of 2
* hwpipes, then stage the right pipe on the right side of both
* the layer mixers
*/
right_pipe = mdp5_plane_right_pipe(plane);
if (right_pipe) {
stage[pstate->stage][PIPE_RIGHT] = right_pipe;
r_stage[pstate->stage][PIPE_RIGHT] = right_pipe;
}
plane_cnt++;
}
if (!pstates[STAGE_BASE]) {
ctl_blend_flags |= MDP5_CTL_BLEND_OP_FLAG_BORDER_OUT;
DBG("Border Color is enabled");
} else if (plane_cnt) {
format = to_mdp_format(msm_framebuffer_format(pstates[STAGE_BASE]->base.fb));
if (format->alpha_enable)
bg_alpha_enabled = true;
}
/* The reset for blending */
for (i = STAGE0; i <= STAGE_MAX; i++) {
if (!pstates[i])
continue;
format = to_mdp_format(
msm_framebuffer_format(pstates[i]->base.fb));
plane = pstates[i]->base.plane;
blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
MDP5_LM_BLEND_OP_MODE_BG_ALPHA(BG_CONST);
fg_alpha = pstates[i]->alpha;
bg_alpha = 0xFF - pstates[i]->alpha;
if (!format->alpha_enable && bg_alpha_enabled)
mixer_op_mode = 0;
else
mixer_op_mode |= mdp5_lm_use_fg_alpha_mask(i);
DBG("Stage %d fg_alpha %x bg_alpha %x", i, fg_alpha, bg_alpha);
if (format->alpha_enable && pstates[i]->premultiplied) {
blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_CONST) |
MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL);
if (fg_alpha != 0xff) {
bg_alpha = fg_alpha;
blend_op |=
MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA |
MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA;
} else {
blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA;
}
} else if (format->alpha_enable) {
blend_op = MDP5_LM_BLEND_OP_MODE_FG_ALPHA(FG_PIXEL) |
MDP5_LM_BLEND_OP_MODE_BG_ALPHA(FG_PIXEL);
if (fg_alpha != 0xff) {
bg_alpha = fg_alpha;
blend_op |=
MDP5_LM_BLEND_OP_MODE_FG_MOD_ALPHA |
MDP5_LM_BLEND_OP_MODE_FG_INV_MOD_ALPHA |
MDP5_LM_BLEND_OP_MODE_BG_MOD_ALPHA |
MDP5_LM_BLEND_OP_MODE_BG_INV_MOD_ALPHA;
} else {
blend_op |= MDP5_LM_BLEND_OP_MODE_BG_INV_ALPHA;
}
}
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(lm,
blender(i)), blend_op);
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(lm,
blender(i)), fg_alpha);
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(lm,
blender(i)), bg_alpha);
if (r_mixer) {
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_OP_MODE(r_lm,
blender(i)), blend_op);
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_FG_ALPHA(r_lm,
blender(i)), fg_alpha);
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_BG_ALPHA(r_lm,
blender(i)), bg_alpha);
}
}
val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm));
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm),
val | mixer_op_mode);
if (r_mixer) {
val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm));
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm),
val | mixer_op_mode);
}
mdp5_ctl_blend(ctl, pipeline, stage, r_stage, plane_cnt,
ctl_blend_flags);
out:
spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
}
static void mdp5_crtc_mode_set_nofb(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct mdp5_hw_mixer *mixer = mdp5_cstate->pipeline.mixer;
struct mdp5_hw_mixer *r_mixer = mdp5_cstate->pipeline.r_mixer;
uint32_t lm = mixer->lm;
u32 mixer_width, val;
unsigned long flags;
struct drm_display_mode *mode;
if (WARN_ON(!crtc->state))
return;
mode = &crtc->state->adjusted_mode;
DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
crtc->name, mode->base.id, mode->name,
mode->vrefresh, mode->clock,
mode->hdisplay, mode->hsync_start,
mode->hsync_end, mode->htotal,
mode->vdisplay, mode->vsync_start,
mode->vsync_end, mode->vtotal,
mode->type, mode->flags);
mixer_width = mode->hdisplay;
if (r_mixer)
mixer_width /= 2;
spin_lock_irqsave(&mdp5_crtc->lm_lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(lm),
MDP5_LM_OUT_SIZE_WIDTH(mixer_width) |
MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
/* Assign mixer to LEFT side in source split mode */
val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm));
val &= ~MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT;
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(lm), val);
if (r_mixer) {
u32 r_lm = r_mixer->lm;
mdp5_write(mdp5_kms, REG_MDP5_LM_OUT_SIZE(r_lm),
MDP5_LM_OUT_SIZE_WIDTH(mixer_width) |
MDP5_LM_OUT_SIZE_HEIGHT(mode->vdisplay));
/* Assign mixer to RIGHT side in source split mode */
val = mdp5_read(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm));
val |= MDP5_LM_BLEND_COLOR_OUT_SPLIT_LEFT_RIGHT;
mdp5_write(mdp5_kms, REG_MDP5_LM_BLEND_COLOR_OUT(r_lm), val);
}
spin_unlock_irqrestore(&mdp5_crtc->lm_lock, flags);
}
static void mdp5_crtc_atomic_disable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct device *dev = &mdp5_kms->pdev->dev;
DBG("%s", crtc->name);
if (WARN_ON(!mdp5_crtc->enabled))
return;
/* Disable/save vblank irq handling before power is disabled */
drm_crtc_vblank_off(crtc);
if (mdp5_cstate->cmd_mode)
mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->pp_done);
mdp_irq_unregister(&mdp5_kms->base, &mdp5_crtc->err);
pm_runtime_put_sync(dev);
mdp5_crtc->enabled = false;
}
static void mdp5_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct device *dev = &mdp5_kms->pdev->dev;
DBG("%s", crtc->name);
if (WARN_ON(mdp5_crtc->enabled))
return;
pm_runtime_get_sync(dev);
if (mdp5_crtc->lm_cursor_enabled) {
/*
* Restore LM cursor state, as it might have been lost
* with suspend:
*/
if (mdp5_crtc->cursor.iova) {
unsigned long flags;
spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
mdp5_crtc_restore_cursor(crtc);
spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
mdp5_ctl_set_cursor(mdp5_cstate->ctl,
&mdp5_cstate->pipeline, 0, true);
} else {
mdp5_ctl_set_cursor(mdp5_cstate->ctl,
&mdp5_cstate->pipeline, 0, false);
}
}
/* Restore vblank irq handling after power is enabled */
drm_crtc_vblank_on(crtc);
mdp5_crtc_mode_set_nofb(crtc);
mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->err);
if (mdp5_cstate->cmd_mode)
mdp_irq_register(&mdp5_kms->base, &mdp5_crtc->pp_done);
mdp5_crtc->enabled = true;
}
int mdp5_crtc_setup_pipeline(struct drm_crtc *crtc,
struct drm_crtc_state *new_crtc_state,
bool need_right_mixer)
{
struct mdp5_crtc_state *mdp5_cstate =
to_mdp5_crtc_state(new_crtc_state);
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct mdp5_interface *intf;
bool new_mixer = false;
new_mixer = !pipeline->mixer;
if ((need_right_mixer && !pipeline->r_mixer) ||
(!need_right_mixer && pipeline->r_mixer))
new_mixer = true;
if (new_mixer) {
struct mdp5_hw_mixer *old_mixer = pipeline->mixer;
struct mdp5_hw_mixer *old_r_mixer = pipeline->r_mixer;
u32 caps;
int ret;
caps = MDP_LM_CAP_DISPLAY;
if (need_right_mixer)
caps |= MDP_LM_CAP_PAIR;
ret = mdp5_mixer_assign(new_crtc_state->state, crtc, caps,
&pipeline->mixer, need_right_mixer ?
&pipeline->r_mixer : NULL);
if (ret)
return ret;
mdp5_mixer_release(new_crtc_state->state, old_mixer);
if (old_r_mixer) {
mdp5_mixer_release(new_crtc_state->state, old_r_mixer);
if (!need_right_mixer)
pipeline->r_mixer = NULL;
}
}
/*
* these should have been already set up in the encoder's atomic
* check (called by drm_atomic_helper_check_modeset)
*/
intf = pipeline->intf;
mdp5_cstate->err_irqmask = intf2err(intf->num);
mdp5_cstate->vblank_irqmask = intf2vblank(pipeline->mixer, intf);
if ((intf->type == INTF_DSI) &&
(intf->mode == MDP5_INTF_DSI_MODE_COMMAND)) {
mdp5_cstate->pp_done_irqmask = lm2ppdone(pipeline->mixer);
mdp5_cstate->cmd_mode = true;
} else {
mdp5_cstate->pp_done_irqmask = 0;
mdp5_cstate->cmd_mode = false;
}
return 0;
}
struct plane_state {
struct drm_plane *plane;
struct mdp5_plane_state *state;
};
static int pstate_cmp(const void *a, const void *b)
{
struct plane_state *pa = (struct plane_state *)a;
struct plane_state *pb = (struct plane_state *)b;
return pa->state->zpos - pb->state->zpos;
}
/* is there a helper for this? */
static bool is_fullscreen(struct drm_crtc_state *cstate,
struct drm_plane_state *pstate)
{
return (pstate->crtc_x <= 0) && (pstate->crtc_y <= 0) &&
((pstate->crtc_x + pstate->crtc_w) >= cstate->mode.hdisplay) &&
((pstate->crtc_y + pstate->crtc_h) >= cstate->mode.vdisplay);
}
static enum mdp_mixer_stage_id get_start_stage(struct drm_crtc *crtc,
struct drm_crtc_state *new_crtc_state,
struct drm_plane_state *bpstate)
{
struct mdp5_crtc_state *mdp5_cstate =
to_mdp5_crtc_state(new_crtc_state);
/*
* if we're in source split mode, it's mandatory to have
* border out on the base stage
*/
if (mdp5_cstate->pipeline.r_mixer)
return STAGE0;
/* if the bottom-most layer is not fullscreen, we need to use
* it for solid-color:
*/
if (!is_fullscreen(new_crtc_state, bpstate))
return STAGE0;
return STAGE_BASE;
}
static int mdp5_crtc_atomic_check(struct drm_crtc *crtc,
struct drm_crtc_state *state)
{
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct drm_plane *plane;
struct drm_device *dev = crtc->dev;
struct plane_state pstates[STAGE_MAX + 1];
const struct mdp5_cfg_hw *hw_cfg;
const struct drm_plane_state *pstate;
const struct drm_display_mode *mode = &state->adjusted_mode;
bool cursor_plane = false;
bool need_right_mixer = false;
int cnt = 0, i;
int ret;
enum mdp_mixer_stage_id start;
DBG("%s: check", crtc->name);
drm_atomic_crtc_state_for_each_plane_state(plane, pstate, state) {
if (!pstate->visible)
continue;
pstates[cnt].plane = plane;
pstates[cnt].state = to_mdp5_plane_state(pstate);
/*
* if any plane on this crtc uses 2 hwpipes, then we need
* the crtc to have a right hwmixer.
*/
if (pstates[cnt].state->r_hwpipe)
need_right_mixer = true;
cnt++;
if (plane->type == DRM_PLANE_TYPE_CURSOR)
cursor_plane = true;
}
/* bail out early if there aren't any planes */
if (!cnt)
return 0;
hw_cfg = mdp5_cfg_get_hw_config(mdp5_kms->cfg);
/*
* we need a right hwmixer if the mode's width is greater than a single
* LM's max width
*/
if (mode->hdisplay > hw_cfg->lm.max_width)
need_right_mixer = true;
ret = mdp5_crtc_setup_pipeline(crtc, state, need_right_mixer);
if (ret) {
dev_err(dev->dev, "couldn't assign mixers %d\n", ret);
return ret;
}
/* assign a stage based on sorted zpos property */
sort(pstates, cnt, sizeof(pstates[0]), pstate_cmp, NULL);
/* trigger a warning if cursor isn't the highest zorder */
WARN_ON(cursor_plane &&
(pstates[cnt - 1].plane->type != DRM_PLANE_TYPE_CURSOR));
start = get_start_stage(crtc, state, &pstates[0].state->base);
/* verify that there are not too many planes attached to crtc
* and that we don't have conflicting mixer stages:
*/
if ((cnt + start - 1) >= hw_cfg->lm.nb_stages) {
dev_err(dev->dev, "too many planes! cnt=%d, start stage=%d\n",
cnt, start);
return -EINVAL;
}
for (i = 0; i < cnt; i++) {
if (cursor_plane && (i == (cnt - 1)))
pstates[i].state->stage = hw_cfg->lm.nb_stages;
else
pstates[i].state->stage = start + i;
DBG("%s: assign pipe %s on stage=%d", crtc->name,
pstates[i].plane->name,
pstates[i].state->stage);
}
return 0;
}
static void mdp5_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
DBG("%s: begin", crtc->name);
}
static void mdp5_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct drm_device *dev = crtc->dev;
unsigned long flags;
DBG("%s: event: %p", crtc->name, crtc->state->event);
WARN_ON(mdp5_crtc->event);
spin_lock_irqsave(&dev->event_lock, flags);
mdp5_crtc->event = crtc->state->event;
spin_unlock_irqrestore(&dev->event_lock, flags);
/*
* If no CTL has been allocated in mdp5_crtc_atomic_check(),
* it means we are trying to flush a CRTC whose state is disabled:
* nothing else needs to be done.
*/
/* XXX: Can this happen now ? */
if (unlikely(!mdp5_cstate->ctl))
return;
blend_setup(crtc);
/* PP_DONE irq is only used by command mode for now.
* It is better to request pending before FLUSH and START trigger
* to make sure no pp_done irq missed.
* This is safe because no pp_done will happen before SW trigger
* in command mode.
*/
if (mdp5_cstate->cmd_mode)
request_pp_done_pending(crtc);
mdp5_crtc->flushed_mask = crtc_flush_all(crtc);
/* XXX are we leaking out state here? */
mdp5_crtc->vblank.irqmask = mdp5_cstate->vblank_irqmask;
mdp5_crtc->err.irqmask = mdp5_cstate->err_irqmask;
mdp5_crtc->pp_done.irqmask = mdp5_cstate->pp_done_irqmask;
request_pending(crtc, PENDING_FLIP);
}
static void get_roi(struct drm_crtc *crtc, uint32_t *roi_w, uint32_t *roi_h)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
uint32_t xres = crtc->mode.hdisplay;
uint32_t yres = crtc->mode.vdisplay;
/*
* Cursor Region Of Interest (ROI) is a plane read from cursor
* buffer to render. The ROI region is determined by the visibility of
* the cursor point. In the default Cursor image the cursor point will
* be at the top left of the cursor image, unless it is specified
* otherwise using hotspot feature.
*
* If the cursor point reaches the right (xres - x < cursor.width) or
* bottom (yres - y < cursor.height) boundary of the screen, then ROI
* width and ROI height need to be evaluated to crop the cursor image
* accordingly.
* (xres-x) will be new cursor width when x > (xres - cursor.width)
* (yres-y) will be new cursor height when y > (yres - cursor.height)
*/
*roi_w = min(mdp5_crtc->cursor.width, xres -
mdp5_crtc->cursor.x);
*roi_h = min(mdp5_crtc->cursor.height, yres -
mdp5_crtc->cursor.y);
}
static void mdp5_crtc_restore_cursor(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_kms *mdp5_kms = get_kms(crtc);
const enum mdp5_cursor_alpha cur_alpha = CURSOR_ALPHA_PER_PIXEL;
uint32_t blendcfg, stride;
uint32_t x, y, width, height;
uint32_t roi_w, roi_h;
int lm;
assert_spin_locked(&mdp5_crtc->cursor.lock);
lm = mdp5_cstate->pipeline.mixer->lm;
x = mdp5_crtc->cursor.x;
y = mdp5_crtc->cursor.y;
width = mdp5_crtc->cursor.width;
height = mdp5_crtc->cursor.height;
stride = width * drm_format_plane_cpp(DRM_FORMAT_ARGB8888, 0);
get_roi(crtc, &roi_w, &roi_h);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_STRIDE(lm), stride);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_FORMAT(lm),
MDP5_LM_CURSOR_FORMAT_FORMAT(CURSOR_FMT_ARGB8888));
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_IMG_SIZE(lm),
MDP5_LM_CURSOR_IMG_SIZE_SRC_H(height) |
MDP5_LM_CURSOR_IMG_SIZE_SRC_W(width));
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_SIZE(lm),
MDP5_LM_CURSOR_SIZE_ROI_H(roi_h) |
MDP5_LM_CURSOR_SIZE_ROI_W(roi_w));
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_START_XY(lm),
MDP5_LM_CURSOR_START_XY_Y_START(y) |
MDP5_LM_CURSOR_START_XY_X_START(x));
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BASE_ADDR(lm),
mdp5_crtc->cursor.iova);
blendcfg = MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_EN;
blendcfg |= MDP5_LM_CURSOR_BLEND_CONFIG_BLEND_ALPHA_SEL(cur_alpha);
mdp5_write(mdp5_kms, REG_MDP5_LM_CURSOR_BLEND_CONFIG(lm), blendcfg);
}
static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
struct drm_file *file, uint32_t handle,
uint32_t width, uint32_t height)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct drm_device *dev = crtc->dev;
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct platform_device *pdev = mdp5_kms->pdev;
struct msm_kms *kms = &mdp5_kms->base.base;
struct drm_gem_object *cursor_bo, *old_bo = NULL;
struct mdp5_ctl *ctl;
int ret;
uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
bool cursor_enable = true;
unsigned long flags;
if (!mdp5_crtc->lm_cursor_enabled) {
dev_warn(dev->dev,
"cursor_set is deprecated with cursor planes\n");
return -EINVAL;
}
if ((width > CURSOR_WIDTH) || (height > CURSOR_HEIGHT)) {
dev_err(dev->dev, "bad cursor size: %dx%d\n", width, height);
return -EINVAL;
}
ctl = mdp5_cstate->ctl;
if (!ctl)
return -EINVAL;
/* don't support LM cursors when we we have source split enabled */
if (mdp5_cstate->pipeline.r_mixer)
return -EINVAL;
if (!handle) {
DBG("Cursor off");
cursor_enable = false;
mdp5_crtc->cursor.iova = 0;
pm_runtime_get_sync(&pdev->dev);
goto set_cursor;
}
cursor_bo = drm_gem_object_lookup(file, handle);
if (!cursor_bo)
return -ENOENT;
ret = msm_gem_get_iova(cursor_bo, kms->aspace,
&mdp5_crtc->cursor.iova);
if (ret)
return -EINVAL;
pm_runtime_get_sync(&pdev->dev);
spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
old_bo = mdp5_crtc->cursor.scanout_bo;
mdp5_crtc->cursor.scanout_bo = cursor_bo;
mdp5_crtc->cursor.width = width;
mdp5_crtc->cursor.height = height;
mdp5_crtc_restore_cursor(crtc);
spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
set_cursor:
ret = mdp5_ctl_set_cursor(ctl, pipeline, 0, cursor_enable);
if (ret) {
dev_err(dev->dev, "failed to %sable cursor: %d\n",
cursor_enable ? "en" : "dis", ret);
goto end;
}
crtc_flush(crtc, flush_mask);
end:
pm_runtime_put_sync(&pdev->dev);
if (old_bo) {
drm_flip_work_queue(&mdp5_crtc->unref_cursor_work, old_bo);
/* enable vblank to complete cursor work: */
request_pending(crtc, PENDING_CURSOR);
}
return ret;
}
static int mdp5_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
{
struct mdp5_kms *mdp5_kms = get_kms(crtc);
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
uint32_t flush_mask = mdp_ctl_flush_mask_cursor(0);
struct drm_device *dev = crtc->dev;
uint32_t roi_w;
uint32_t roi_h;
unsigned long flags;
if (!mdp5_crtc->lm_cursor_enabled) {
dev_warn(dev->dev,
"cursor_move is deprecated with cursor planes\n");
return -EINVAL;
}
/* don't support LM cursors when we we have source split enabled */
if (mdp5_cstate->pipeline.r_mixer)
return -EINVAL;
/* In case the CRTC is disabled, just drop the cursor update */
if (unlikely(!crtc->state->enable))
return 0;
mdp5_crtc->cursor.x = x = max(x, 0);
mdp5_crtc->cursor.y = y = max(y, 0);
get_roi(crtc, &roi_w, &roi_h);
pm_runtime_get_sync(&mdp5_kms->pdev->dev);
spin_lock_irqsave(&mdp5_crtc->cursor.lock, flags);
mdp5_crtc_restore_cursor(crtc);
spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
crtc_flush(crtc, flush_mask);
pm_runtime_put_sync(&mdp5_kms->pdev->dev);
return 0;
}
static void
mdp5_crtc_atomic_print_state(struct drm_printer *p,
const struct drm_crtc_state *state)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
struct mdp5_pipeline *pipeline = &mdp5_cstate->pipeline;
struct mdp5_kms *mdp5_kms = get_kms(state->crtc);
if (WARN_ON(!pipeline))
return;
drm_printf(p, "\thwmixer=%s\n", pipeline->mixer ?
pipeline->mixer->name : "(null)");
if (mdp5_kms->caps & MDP_CAP_SRC_SPLIT)
drm_printf(p, "\tright hwmixer=%s\n", pipeline->r_mixer ?
pipeline->r_mixer->name : "(null)");
}
static void mdp5_crtc_reset(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate;
if (crtc->state) {
__drm_atomic_helper_crtc_destroy_state(crtc->state);
kfree(to_mdp5_crtc_state(crtc->state));
}
mdp5_cstate = kzalloc(sizeof(*mdp5_cstate), GFP_KERNEL);
if (mdp5_cstate) {
mdp5_cstate->base.crtc = crtc;
crtc->state = &mdp5_cstate->base;
}
}
static struct drm_crtc_state *
mdp5_crtc_duplicate_state(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate;
if (WARN_ON(!crtc->state))
return NULL;
mdp5_cstate = kmemdup(to_mdp5_crtc_state(crtc->state),
sizeof(*mdp5_cstate), GFP_KERNEL);
if (!mdp5_cstate)
return NULL;
__drm_atomic_helper_crtc_duplicate_state(crtc, &mdp5_cstate->base);
return &mdp5_cstate->base;
}
static void mdp5_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(state);
__drm_atomic_helper_crtc_destroy_state(state);
kfree(mdp5_cstate);
}
static const struct drm_crtc_funcs mdp5_crtc_funcs = {
.set_config = drm_atomic_helper_set_config,
.destroy = mdp5_crtc_destroy,
.page_flip = drm_atomic_helper_page_flip,
.reset = mdp5_crtc_reset,
.atomic_duplicate_state = mdp5_crtc_duplicate_state,
.atomic_destroy_state = mdp5_crtc_destroy_state,
.cursor_set = mdp5_crtc_cursor_set,
.cursor_move = mdp5_crtc_cursor_move,
.atomic_print_state = mdp5_crtc_atomic_print_state,
};
static const struct drm_crtc_helper_funcs mdp5_crtc_helper_funcs = {
.mode_set_nofb = mdp5_crtc_mode_set_nofb,
.atomic_check = mdp5_crtc_atomic_check,
.atomic_begin = mdp5_crtc_atomic_begin,
.atomic_flush = mdp5_crtc_atomic_flush,
.atomic_enable = mdp5_crtc_atomic_enable,
.atomic_disable = mdp5_crtc_atomic_disable,
};
static void mdp5_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus)
{
struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, vblank);
struct drm_crtc *crtc = &mdp5_crtc->base;
struct msm_drm_private *priv = crtc->dev->dev_private;
unsigned pending;
mdp_irq_unregister(&get_kms(crtc)->base, &mdp5_crtc->vblank);
pending = atomic_xchg(&mdp5_crtc->pending, 0);
if (pending & PENDING_FLIP) {
complete_flip(crtc, NULL);
}
if (pending & PENDING_CURSOR)
drm_flip_work_commit(&mdp5_crtc->unref_cursor_work, priv->wq);
}
static void mdp5_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus)
{
struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc, err);
DBG("%s: error: %08x", mdp5_crtc->base.name, irqstatus);
}
static void mdp5_crtc_pp_done_irq(struct mdp_irq *irq, uint32_t irqstatus)
{
struct mdp5_crtc *mdp5_crtc = container_of(irq, struct mdp5_crtc,
pp_done);
complete(&mdp5_crtc->pp_completion);
}
static void mdp5_crtc_wait_for_pp_done(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
int ret;
ret = wait_for_completion_timeout(&mdp5_crtc->pp_completion,
msecs_to_jiffies(50));
if (ret == 0)
dev_warn(dev->dev, "pp done time out, lm=%d\n",
mdp5_cstate->pipeline.mixer->lm);
}
static void mdp5_crtc_wait_for_flush_done(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_ctl *ctl = mdp5_cstate->ctl;
int ret;
/* Should not call this function if crtc is disabled. */
if (!ctl)
return;
ret = drm_crtc_vblank_get(crtc);
if (ret)
return;
ret = wait_event_timeout(dev->vblank[drm_crtc_index(crtc)].queue,
((mdp5_ctl_get_commit_status(ctl) &
mdp5_crtc->flushed_mask) == 0),
msecs_to_jiffies(50));
if (ret <= 0)
dev_warn(dev->dev, "vblank time out, crtc=%d\n", mdp5_crtc->id);
mdp5_crtc->flushed_mask = 0;
drm_crtc_vblank_put(crtc);
}
uint32_t mdp5_crtc_vblank(struct drm_crtc *crtc)
{
struct mdp5_crtc *mdp5_crtc = to_mdp5_crtc(crtc);
return mdp5_crtc->vblank.irqmask;
}
void mdp5_crtc_set_pipeline(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
struct mdp5_kms *mdp5_kms = get_kms(crtc);
/* should this be done elsewhere ? */
mdp_irq_update(&mdp5_kms->base);
mdp5_ctl_set_pipeline(mdp5_cstate->ctl, &mdp5_cstate->pipeline);
}
struct mdp5_ctl *mdp5_crtc_get_ctl(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
return mdp5_cstate->ctl;
}
struct mdp5_hw_mixer *mdp5_crtc_get_mixer(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate;
if (WARN_ON(!crtc))
return ERR_PTR(-EINVAL);
mdp5_cstate = to_mdp5_crtc_state(crtc->state);
return WARN_ON(!mdp5_cstate->pipeline.mixer) ?
ERR_PTR(-EINVAL) : mdp5_cstate->pipeline.mixer;
}
struct mdp5_pipeline *mdp5_crtc_get_pipeline(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate;
if (WARN_ON(!crtc))
return ERR_PTR(-EINVAL);
mdp5_cstate = to_mdp5_crtc_state(crtc->state);
return &mdp5_cstate->pipeline;
}
void mdp5_crtc_wait_for_commit_done(struct drm_crtc *crtc)
{
struct mdp5_crtc_state *mdp5_cstate = to_mdp5_crtc_state(crtc->state);
if (mdp5_cstate->cmd_mode)
mdp5_crtc_wait_for_pp_done(crtc);
else
mdp5_crtc_wait_for_flush_done(crtc);
}
/* initialize crtc */
struct drm_crtc *mdp5_crtc_init(struct drm_device *dev,
struct drm_plane *plane,
struct drm_plane *cursor_plane, int id)
{
struct drm_crtc *crtc = NULL;
struct mdp5_crtc *mdp5_crtc;
mdp5_crtc = kzalloc(sizeof(*mdp5_crtc), GFP_KERNEL);
if (!mdp5_crtc)
return ERR_PTR(-ENOMEM);
crtc = &mdp5_crtc->base;
mdp5_crtc->id = id;
spin_lock_init(&mdp5_crtc->lm_lock);
spin_lock_init(&mdp5_crtc->cursor.lock);
init_completion(&mdp5_crtc->pp_completion);
mdp5_crtc->vblank.irq = mdp5_crtc_vblank_irq;
mdp5_crtc->err.irq = mdp5_crtc_err_irq;
mdp5_crtc->pp_done.irq = mdp5_crtc_pp_done_irq;
mdp5_crtc->lm_cursor_enabled = cursor_plane ? false : true;
drm_crtc_init_with_planes(dev, crtc, plane, cursor_plane,
&mdp5_crtc_funcs, NULL);
drm_flip_work_init(&mdp5_crtc->unref_cursor_work,
"unref cursor", unref_cursor_worker);
drm_crtc_helper_add(crtc, &mdp5_crtc_helper_funcs);
plane->crtc = crtc;
return crtc;
}
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