[PATCH v3 08/13] drm/msm/dpu: move hw resource tracking to crtc state
Sean Paul
sean at poorly.run
Tue Aug 14 19:57:19 UTC 2018
On Tue, Aug 07, 2018 at 08:12:35PM -0700, Jeykumar Sankaran wrote:
> Prep changes for state based resource management.
>
> Moves all the hw block tracking for the crtc to the state
> object.
>
> changes in v2:
> - none
> changes in v3:
> - none
>
> Change-Id: I2816e9e28b27f1126b477d62eb3858a30a652747
> Signed-off-by: Jeykumar Sankaran <jsanka at codeaurora.org>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 77 +++++++++++++++++---------------
> drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h | 25 +++++------
> 2 files changed, 54 insertions(+), 48 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> index 1f2d223..515b0e6 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
> @@ -136,9 +136,9 @@ static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc)
> crtc_state = to_dpu_crtc_state(crtc->state);
>
> lm_horiz_position = 0;
> - for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
> + for (lm_idx = 0; lm_idx < crtc_state->num_mixers; lm_idx++) {
> const struct drm_rect *lm_roi = &crtc_state->lm_bounds[lm_idx];
> - struct dpu_hw_mixer *hw_lm = dpu_crtc->mixers[lm_idx].hw_lm;
> + struct dpu_hw_mixer *hw_lm = crtc_state->mixers[lm_idx].hw_lm;
> struct dpu_hw_mixer_cfg cfg;
>
> if (!lm_roi || !drm_rect_visible(lm_roi))
> @@ -219,7 +219,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
> fb ? fb->modifier : 0);
>
> /* blend config update */
> - for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) {
> + for (lm_idx = 0; lm_idx < cstate->num_mixers; lm_idx++) {
> _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate);
>
> mixer[lm_idx].flush_mask |= flush_mask;
> @@ -242,7 +242,7 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc,
> static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
> {
> struct dpu_crtc *dpu_crtc;
> - struct dpu_crtc_state *dpu_crtc_state;
> + struct dpu_crtc_state *cstate;
Unrelated var renames are kind of noisy, but I suppose it's just one, so that's
ok.
> struct dpu_crtc_mixer *mixer;
> struct dpu_hw_ctl *ctl;
> struct dpu_hw_mixer *lm;
> @@ -253,17 +253,17 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
> return;
>
> dpu_crtc = to_dpu_crtc(crtc);
> - dpu_crtc_state = to_dpu_crtc_state(crtc->state);
> - mixer = dpu_crtc->mixers;
> + cstate = to_dpu_crtc_state(crtc->state);
> + mixer = cstate->mixers;
>
> DPU_DEBUG("%s\n", dpu_crtc->name);
>
> - if (dpu_crtc->num_mixers > CRTC_DUAL_MIXERS) {
> - DPU_ERROR("invalid number mixers: %d\n", dpu_crtc->num_mixers);
> + if (cstate->num_mixers > CRTC_DUAL_MIXERS) {
> + DPU_ERROR("invalid number mixers: %d\n", cstate->num_mixers);
> return;
> }
>
> - for (i = 0; i < dpu_crtc->num_mixers; i++) {
> + for (i = 0; i < cstate->num_mixers; i++) {
> if (!mixer[i].hw_lm || !mixer[i].hw_ctl) {
> DPU_ERROR("invalid lm or ctl assigned to mixer\n");
> return;
> @@ -280,7 +280,7 @@ static void _dpu_crtc_blend_setup(struct drm_crtc *crtc)
>
> _dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer);
>
> - for (i = 0; i < dpu_crtc->num_mixers; i++) {
> + for (i = 0; i < cstate->num_mixers; i++) {
> ctl = mixer[i].hw_ctl;
> lm = mixer[i].hw_lm;
>
> @@ -502,7 +502,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
> struct drm_crtc *crtc,
> struct drm_encoder *enc)
> {
> - struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
> + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
> struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc);
> struct dpu_rm *rm = &dpu_kms->rm;
> struct dpu_crtc_mixer *mixer;
> @@ -514,8 +514,8 @@ static void _dpu_crtc_setup_mixer_for_encoder(
> dpu_rm_init_hw_iter(&ctl_iter, enc->base.id, DPU_HW_BLK_CTL);
>
> /* Set up all the mixers and ctls reserved by this encoder */
> - for (i = dpu_crtc->num_mixers; i < ARRAY_SIZE(dpu_crtc->mixers); i++) {
> - mixer = &dpu_crtc->mixers[i];
> + for (i = cstate->num_mixers; i < ARRAY_SIZE(cstate->mixers); i++) {
> + mixer = &cstate->mixers[i];
>
> if (!dpu_rm_get_hw(rm, &lm_iter))
> break;
> @@ -540,7 +540,7 @@ static void _dpu_crtc_setup_mixer_for_encoder(
>
> mixer->encoder = enc;
>
> - dpu_crtc->num_mixers++;
> + cstate->num_mixers++;
> DPU_DEBUG("setup mixer %d: lm %d\n",
> i, mixer->hw_lm->idx - LM_0);
> DPU_DEBUG("setup mixer %d: ctl %d\n",
> @@ -551,11 +551,11 @@ static void _dpu_crtc_setup_mixer_for_encoder(
> static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc)
> {
> struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
> + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state);
> struct drm_encoder *enc;
>
> - dpu_crtc->num_mixers = 0;
> - dpu_crtc->mixers_swapped = false;
> - memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
> + cstate->num_mixers = 0;
> + memset(cstate->mixers, 0, sizeof(cstate->mixers));
>
> mutex_lock(&dpu_crtc->crtc_lock);
> /* Check for mixers on all encoders attached to this crtc */
> @@ -589,7 +589,7 @@ static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
> adj_mode = &state->adjusted_mode;
> crtc_split_width = dpu_crtc_get_mixer_width(dpu_crtc, cstate, adj_mode);
>
> - for (i = 0; i < dpu_crtc->num_mixers; i++) {
> + for (i = 0; i < cstate->num_mixers; i++) {
> struct drm_rect *r = &cstate->lm_bounds[i];
> r->x1 = crtc_split_width * i;
> r->y1 = 0;
> @@ -606,6 +606,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
> struct drm_crtc_state *old_state)
> {
> struct dpu_crtc *dpu_crtc;
> + struct dpu_crtc_state *cstate;
> struct drm_encoder *encoder;
> struct drm_device *dev;
> unsigned long flags;
> @@ -625,10 +626,11 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
> DPU_DEBUG("crtc%d\n", crtc->base.id);
>
> dpu_crtc = to_dpu_crtc(crtc);
> + cstate = to_dpu_crtc_state(crtc->state);
> dev = crtc->dev;
> smmu_state = &dpu_crtc->smmu_state;
>
> - if (!dpu_crtc->num_mixers) {
> + if (!cstate->num_mixers) {
> _dpu_crtc_setup_mixers(crtc);
> _dpu_crtc_setup_lm_bounds(crtc, crtc->state);
> }
> @@ -655,7 +657,7 @@ static void dpu_crtc_atomic_begin(struct drm_crtc *crtc,
> * it means we are trying to flush a CRTC whose state is disabled:
> * nothing else needs to be done.
> */
> - if (unlikely(!dpu_crtc->num_mixers))
> + if (unlikely(!cstate->num_mixers))
> return;
>
> _dpu_crtc_blend_setup(crtc);
> @@ -719,7 +721,7 @@ static void dpu_crtc_atomic_flush(struct drm_crtc *crtc,
> * it means we are trying to flush a CRTC whose state is disabled:
> * nothing else needs to be done.
> */
> - if (unlikely(!dpu_crtc->num_mixers))
> + if (unlikely(!cstate->num_mixers))
> return;
>
> /*
> @@ -834,7 +836,7 @@ void dpu_crtc_commit_kickoff(struct drm_crtc *crtc)
> * it means we are trying to start a CRTC whose state is disabled:
> * nothing else needs to be done.
> */
> - if (unlikely(!dpu_crtc->num_mixers))
> + if (unlikely(!cstate->num_mixers))
> return;
>
> DPU_ATRACE_BEGIN("crtc_commit");
> @@ -1069,6 +1071,7 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
> struct dpu_crtc *dpu_crtc;
> struct drm_encoder *encoder;
> struct dpu_crtc_mixer *m;
> + struct dpu_crtc_state *cstate;
> u32 i, misr_status;
>
> if (!crtc) {
> @@ -1076,6 +1079,7 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
> return;
> }
> dpu_crtc = to_dpu_crtc(crtc);
> + cstate = to_dpu_crtc_state(dpu_crtc->base.state);
>
> mutex_lock(&dpu_crtc->crtc_lock);
>
> @@ -1091,8 +1095,8 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
> dpu_encoder_virt_restore(encoder);
> }
>
> - for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> - m = &dpu_crtc->mixers[i];
> + for (i = 0; i < cstate->num_mixers; ++i) {
> + m = &cstate->mixers[i];
> if (!m->hw_lm || !m->hw_lm->ops.setup_misr ||
> !dpu_crtc->misr_enable)
> continue;
> @@ -1102,8 +1106,8 @@ static void dpu_crtc_handle_power_event(u32 event_type, void *arg)
> }
> break;
> case DPU_POWER_EVENT_PRE_DISABLE:
> - for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> - m = &dpu_crtc->mixers[i];
> + for (i = 0; i < cstate->num_mixers; ++i) {
> + m = &cstate->mixers[i];
> if (!m->hw_lm || !m->hw_lm->ops.collect_misr ||
> !dpu_crtc->misr_enable)
> continue;
> @@ -1191,9 +1195,8 @@ static void dpu_crtc_disable(struct drm_crtc *crtc)
> dpu_power_handle_unregister_event(dpu_crtc->phandle,
> dpu_crtc->power_event);
>
> - memset(dpu_crtc->mixers, 0, sizeof(dpu_crtc->mixers));
> - dpu_crtc->num_mixers = 0;
> - dpu_crtc->mixers_swapped = false;
> + memset(cstate->mixers, 0, sizeof(cstate->mixers));
> + cstate->num_mixers = 0;
>
> /* disable clk & bw control until clk & bw properties are set */
> cstate->bw_control = false;
> @@ -1552,8 +1555,8 @@ static int _dpu_debugfs_status_show(struct seq_file *s, void *data)
>
> seq_puts(s, "\n");
>
> - for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> - m = &dpu_crtc->mixers[i];
> + for (i = 0; i < cstate->num_mixers; ++i) {
> + m = &cstate->mixers[i];
Hmmm, the state accesses in this function aren't properly serialized. Could you
please whip up a patch to acquire the modeset locks?
> if (!m->hw_lm)
> seq_printf(s, "\tmixer[%d] has no lm\n", i);
> else if (!m->hw_ctl)
> @@ -1646,6 +1649,7 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
> const char __user *user_buf, size_t count, loff_t *ppos)
> {
> struct dpu_crtc *dpu_crtc;
> + struct dpu_crtc_state *cstate;
> struct dpu_crtc_mixer *m;
> int i = 0, rc;
> char buf[MISR_BUFF_SIZE + 1];
> @@ -1656,6 +1660,7 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
> return -EINVAL;
>
> dpu_crtc = file->private_data;
> + cstate = to_dpu_crtc_state(dpu_crtc->base.state);
Same here
> buff_copy = min_t(size_t, count, MISR_BUFF_SIZE);
> if (copy_from_user(buf, user_buf, buff_copy)) {
> DPU_ERROR("buffer copy failed\n");
> @@ -1674,9 +1679,9 @@ static ssize_t _dpu_crtc_misr_setup(struct file *file,
> mutex_lock(&dpu_crtc->crtc_lock);
> dpu_crtc->misr_enable = enable;
> dpu_crtc->misr_frame_count = frame_count;
> - for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> + for (i = 0; i < cstate->num_mixers; ++i) {
> dpu_crtc->misr_data[i] = 0;
> - m = &dpu_crtc->mixers[i];
> + m = &cstate->mixers[i];
> if (!m->hw_lm || !m->hw_lm->ops.setup_misr)
> continue;
>
> @@ -1692,6 +1697,7 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
> char __user *user_buff, size_t count, loff_t *ppos)
> {
> struct dpu_crtc *dpu_crtc;
> + struct dpu_crtc_state *cstate;
> struct dpu_crtc_mixer *m;
> int i = 0, rc;
> u32 misr_status;
> @@ -1705,6 +1711,7 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
> return -EINVAL;
>
> dpu_crtc = file->private_data;
> + cstate = to_dpu_crtc_state(dpu_crtc->base.state);
And here
> rc = _dpu_crtc_power_enable(dpu_crtc, true);
> if (rc)
> return rc;
> @@ -1716,8 +1723,8 @@ static ssize_t _dpu_crtc_misr_read(struct file *file,
> goto buff_check;
> }
>
> - for (i = 0; i < dpu_crtc->num_mixers; ++i) {
> - m = &dpu_crtc->mixers[i];
> + for (i = 0; i < cstate->num_mixers; ++i) {
> + m = &cstate->mixers[i];
> if (!m->hw_lm || !m->hw_lm->ops.collect_misr)
> continue;
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> index e632651..9177ee6 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h
> @@ -121,11 +121,6 @@ struct dpu_crtc_frame_event {
> * struct dpu_crtc - virtualized CRTC data structure
> * @base : Base drm crtc structure
> * @name : ASCII description of this crtc
> - * @num_ctls : Number of ctl paths in use
> - * @num_mixers : Number of mixers in use
> - * @mixers_swapped: Whether the mixers have been swapped for left/right update
> - * especially in the case of DSC Merge.
> - * @mixers : List of active mixers
> * @event : Pointer to last received drm vblank event. If there is a
> * pending vblank event, this will be non-null.
> * @vsync_count : Running count of received vsync events
> @@ -167,12 +162,6 @@ struct dpu_crtc {
> struct drm_crtc base;
> char name[DPU_CRTC_NAME_SIZE];
>
> - /* HW Resources reserved for the crtc */
> - u32 num_ctls;
> - u32 num_mixers;
> - bool mixers_swapped;
> - struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
> -
> struct drm_pending_vblank_event *event;
> u32 vsync_count;
>
> @@ -227,6 +216,10 @@ struct dpu_crtc {
> * @property_values: Current crtc property values
> * @input_fence_timeout_ns : Cached input fence timeout, in ns
> * @new_perf: new performance state being requested
> + * @num_mixers : Number of mixers in use
> + * @mixers : List of active mixers
> + * @num_ctls : Number of ctl paths in use
> + * @hw_ctls : List of activel ctl paths
activel
> */
> struct dpu_crtc_state {
> struct drm_crtc_state base;
> @@ -236,8 +229,14 @@ struct dpu_crtc_state {
> struct drm_rect lm_bounds[CRTC_DUAL_MIXERS];
>
> uint64_t input_fence_timeout_ns;
> -
unrelated whitespace
> struct dpu_core_perf_params new_perf;
> +
> + /* HW Resources reserved for the crtc */
> + u32 num_mixers;
> + struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
> +
> + u32 num_ctls;
> + struct dpu_hw_ctl *hw_ctls[CRTC_DUAL_MIXERS];
> };
>
> #define to_dpu_crtc_state(x) \
> @@ -255,7 +254,7 @@ static inline int dpu_crtc_get_mixer_width(struct dpu_crtc *dpu_crtc,
> if (!dpu_crtc || !cstate || !mode)
> return 0;
>
> - mixer_width = (dpu_crtc->num_mixers == CRTC_DUAL_MIXERS ?
> + mixer_width = (cstate->num_mixers == CRTC_DUAL_MIXERS ?
> mode->hdisplay / CRTC_DUAL_MIXERS : mode->hdisplay);
Can you please add a new patch that precedes this to move this function into
dpu_crtc as a static function?
Sean
>
> return mixer_width;
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
--
Sean Paul, Software Engineer, Google / Chromium OS
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