On Fri, Feb 26, 2021 at 05:32:03PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrj...@linux.intel.com>
>
> We know which WM0 (normal vs. SAGV) we supposedly programmed
> into the hardware, so just check against that instead of accepting
> either watermark as valid.
>
> Cc: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
> Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovs...@intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_display.c | 88 +++++++++-----------
> drivers/gpu/drm/i915/intel_pm.c | 4 +-
> drivers/gpu/drm/i915/intel_pm.h | 5 ++
> 3 files changed, 47 insertions(+), 50 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c
> b/drivers/gpu/drm/i915/display/intel_display.c
> index e34e5a9da5c1..e2ef31a93407 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -9377,41 +9377,40 @@ static void verify_wm_state(struct intel_crtc *crtc,
>
> /* planes */
> for_each_universal_plane(dev_priv, pipe, plane) {
> - struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> -
> - hw_plane_wm = &hw->wm.planes[plane];
> - sw_plane_wm = &sw_wm->planes[plane];
> + const struct skl_wm_level *hw_wm_level, *sw_wm_level;
>
> /* Watermarks */
> for (level = 0; level <= max_level; level++) {
> - if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> - &sw_plane_wm->wm[level]) ||
> - (level == 0 &&
> skl_wm_level_equals(&hw_plane_wm->wm[level],
> -
> &sw_plane_wm->sagv.wm0)))
> + hw_wm_level = &hw->wm.planes[plane].wm[level];
> + sw_wm_level = skl_plane_wm_level(sw_wm, plane, level);
> +
> + if (skl_wm_level_equals(hw_wm_level, sw_wm_level))
> continue;
>
> drm_err(&dev_priv->drm,
> "mismatch in WM pipe %c plane %d level %d
> (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> pipe_name(pipe), plane + 1, level,
> - sw_plane_wm->wm[level].plane_en,
> - sw_plane_wm->wm[level].plane_res_b,
> - sw_plane_wm->wm[level].plane_res_l,
> - hw_plane_wm->wm[level].plane_en,
> - hw_plane_wm->wm[level].plane_res_b,
> - hw_plane_wm->wm[level].plane_res_l);
> + sw_wm_level->plane_en,
> + sw_wm_level->plane_res_b,
> + sw_wm_level->plane_res_l,
> + hw_wm_level->plane_en,
> + hw_wm_level->plane_res_b,
> + hw_wm_level->plane_res_l);
> }
>
> - if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> - &sw_plane_wm->trans_wm)) {
> + hw_wm_level = &hw->wm.planes[plane].trans_wm;
> + sw_wm_level = skl_plane_trans_wm(sw_wm, plane);
> +
> + if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
> drm_err(&dev_priv->drm,
> "mismatch in trans WM pipe %c plane %d
> (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> pipe_name(pipe), plane + 1,
> - sw_plane_wm->trans_wm.plane_en,
> - sw_plane_wm->trans_wm.plane_res_b,
> - sw_plane_wm->trans_wm.plane_res_l,
> - hw_plane_wm->trans_wm.plane_en,
> - hw_plane_wm->trans_wm.plane_res_b,
> - hw_plane_wm->trans_wm.plane_res_l);
> + sw_wm_level->plane_en,
> + sw_wm_level->plane_res_b,
> + sw_wm_level->plane_res_l,
> + hw_wm_level->plane_en,
> + hw_wm_level->plane_res_b,
> + hw_wm_level->plane_res_l);
> }
>
> /* DDB */
> @@ -9434,43 +9433,36 @@ static void verify_wm_state(struct intel_crtc *crtc,
> * once the plane becomes visible, we can skip this check
> */
> if (1) {
> - struct skl_plane_wm *hw_plane_wm, *sw_plane_wm;
> -
> - hw_plane_wm = &hw->wm.planes[PLANE_CURSOR];
> - sw_plane_wm = &sw_wm->planes[PLANE_CURSOR];
> + const struct skl_wm_level *hw_wm_level, *sw_wm_level;
>
> /* Watermarks */
> for (level = 0; level <= max_level; level++) {
> - if (skl_wm_level_equals(&hw_plane_wm->wm[level],
> - &sw_plane_wm->wm[level]) ||
> - (level == 0 &&
> skl_wm_level_equals(&hw_plane_wm->wm[level],
> -
> &sw_plane_wm->sagv.wm0)))
> - continue;
> -
> + hw_wm_level = &hw->wm.planes[PLANE_CURSOR].wm[level];
> + sw_wm_level = skl_plane_wm_level(sw_wm, PLANE_CURSOR,
> level);
> drm_err(&dev_priv->drm,
> "mismatch in WM pipe %c cursor level %d
> (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> pipe_name(pipe), level,
> - sw_plane_wm->wm[level].plane_en,
> - sw_plane_wm->wm[level].plane_res_b,
> - sw_plane_wm->wm[level].plane_res_l,
> - hw_plane_wm->wm[level].plane_en,
> - hw_plane_wm->wm[level].plane_res_b,
> - hw_plane_wm->wm[level].plane_res_l);
> + sw_wm_level->plane_en,
> + sw_wm_level->plane_res_b,
> + sw_wm_level->plane_res_l,
> + hw_wm_level->plane_en,
> + hw_wm_level->plane_res_b,
> + hw_wm_level->plane_res_l);
> }
>
> - if (!skl_wm_level_equals(&hw_plane_wm->trans_wm,
> - &sw_plane_wm->trans_wm) &&
> - !skl_wm_level_equals(&hw_plane_wm->trans_wm,
> - &sw_plane_wm->sagv.trans_wm)) {
> + hw_wm_level = &hw->wm.planes[PLANE_CURSOR].trans_wm;
> + sw_wm_level = skl_plane_trans_wm(sw_wm, PLANE_CURSOR);
> +
> + if (!skl_wm_level_equals(hw_wm_level, sw_wm_level)) {
> drm_err(&dev_priv->drm,
> "mismatch in trans WM pipe %c cursor (expected
> e=%d b=%u l=%u, got e=%d b=%u l=%u)\n",
> pipe_name(pipe),
> - sw_plane_wm->trans_wm.plane_en,
> - sw_plane_wm->trans_wm.plane_res_b,
> - sw_plane_wm->trans_wm.plane_res_l,
> - hw_plane_wm->trans_wm.plane_en,
> - hw_plane_wm->trans_wm.plane_res_b,
> - hw_plane_wm->trans_wm.plane_res_l);
> + sw_wm_level->plane_en,
> + sw_wm_level->plane_res_b,
> + sw_wm_level->plane_res_l,
> + hw_wm_level->plane_en,
> + hw_wm_level->plane_res_b,
> + hw_wm_level->plane_res_l);
> }
>
> /* DDB */
> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
> index 9d9ba63fc395..854ffecd98d9 100644
> --- a/drivers/gpu/drm/i915/intel_pm.c
> +++ b/drivers/gpu/drm/i915/intel_pm.c
> @@ -4745,7 +4745,7 @@ icl_get_total_relative_data_rate(struct
> intel_atomic_state *state,
> return total_data_rate;
> }
>
> -static const struct skl_wm_level *
> +const struct skl_wm_level *
> skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
> enum plane_id plane_id,
> int level)
> @@ -4758,7 +4758,7 @@ skl_plane_wm_level(const struct skl_pipe_wm *pipe_wm,
> return &wm->wm[level];
> }
>
> -static const struct skl_wm_level *
> +const struct skl_wm_level *
> skl_plane_trans_wm(const struct skl_pipe_wm *pipe_wm,
> enum plane_id plane_id)
> {
> diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
> index 97550cf0b6df..669c8d505677 100644
> --- a/drivers/gpu/drm/i915/intel_pm.h
> +++ b/drivers/gpu/drm/i915/intel_pm.h
> @@ -52,6 +52,11 @@ bool intel_can_enable_sagv(struct drm_i915_private
> *dev_priv,
> const struct intel_bw_state *bw_state);
> void intel_sagv_pre_plane_update(struct intel_atomic_state *state);
> void intel_sagv_post_plane_update(struct intel_atomic_state *state);
> +const struct skl_wm_level *skl_plane_wm_level(const struct skl_pipe_wm
> *pipe_wm,
> + enum plane_id plane_id,
> + int level);
> +const struct skl_wm_level *skl_plane_trans_wm(const struct skl_pipe_wm
> *pipe_wm,
> + enum plane_id plane_id);
> bool skl_wm_level_equals(const struct skl_wm_level *l1,
> const struct skl_wm_level *l2);
> bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
> --
> 2.26.2
>
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