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drm/i915: Extract skl_allocate_plane_ddb()

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Replace some copy-pasta with a function.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220118092354.11631-6-ville.syrjala@linux.intel.com
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
This commit is contained in:
Ville Syrjälä 2022-01-18 11:23:44 +02:00
parent 63b81e6063
commit 04d4e16752
1 changed files with 24 additions and 17 deletions
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41
drivers/gpu/drm/i915/intel_pm.c
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@ -5109,9 +5109,24 @@ struct skl_plane_ddb_iter {
u16 start, size;
};
static u16
skl_allocate_plane_ddb(struct skl_plane_ddb_iter *iter,
const struct skl_wm_level *wm,
u64 data_rate)
{
u16 extra;
extra = min_t(u16, iter->size,
DIV64_U64_ROUND_UP(iter->size * data_rate, iter->data_rate));
iter->size -= extra;
iter->data_rate -= data_rate;
return wm->min_ddb_alloc + extra;
}
static int
skl_allocate_plane_ddb(struct intel_atomic_state *state,
struct intel_crtc *crtc)
skl_crtc_allocate_plane_ddb(struct intel_atomic_state *state,
struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
struct intel_crtc_state *crtc_state =
@ -5196,8 +5211,6 @@ skl_allocate_plane_ddb(struct intel_atomic_state *state,
for_each_plane_id_on_crtc(crtc, plane_id) {
const struct skl_plane_wm *wm =
&crtc_state->wm.skl.optimal.planes[plane_id];
u64 data_rate;
u16 extra;
if (plane_id == PLANE_CURSOR)
continue;
@ -5209,22 +5222,16 @@ skl_allocate_plane_ddb(struct intel_atomic_state *state,
if (iter.data_rate == 0)
break;
data_rate = crtc_state->plane_data_rate[plane_id];
extra = min_t(u16, iter.size,
DIV64_U64_ROUND_UP(iter.size * data_rate, iter.data_rate));
iter.total[plane_id] = wm->wm[level].min_ddb_alloc + extra;
iter.size -= extra;
iter.data_rate -= data_rate;
iter.total[plane_id] =
skl_allocate_plane_ddb(&iter, &wm->wm[level],
crtc_state->plane_data_rate[plane_id]);
if (iter.data_rate == 0)
break;
data_rate = crtc_state->uv_plane_data_rate[plane_id];
extra = min_t(u16, iter.size,
DIV64_U64_ROUND_UP(iter.size * data_rate, iter.data_rate));
iter.uv_total[plane_id] = wm->uv_wm[level].min_ddb_alloc + extra;
iter.size -= extra;
iter.data_rate -= data_rate;
iter.uv_total[plane_id] =
skl_allocate_plane_ddb(&iter, &wm->uv_wm[level],
crtc_state->uv_plane_data_rate[plane_id]);
}
drm_WARN_ON(&dev_priv->drm, iter.size != 0 || iter.data_rate != 0);
@ -6177,7 +6184,7 @@ skl_compute_ddb(struct intel_atomic_state *state)
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state,
new_crtc_state, i) {
ret = skl_allocate_plane_ddb(state, crtc);
ret = skl_crtc_allocate_plane_ddb(state, crtc);
if (ret)
return ret;