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drm/i915/wm: add more accessors to dbuf state

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Add intel_dbuf_num_enabled_slices() and intel_dbuf_num_active_pipes()
helpers to avoid looking at struct intel_dbuf_state internals outside of
skl_watermark.c.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/7d555e7b4e93632b732b8b5a3cd4076baf781bee.1750847509.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Jani Nikula 2025-06-25 13:32:20 +03:00
parent 70349f275f
commit 3a34fd6de4
3 changed files with 16 additions and 3 deletions
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6
drivers/gpu/drm/i915/display/intel_pmdemand.c
View File

@ -358,12 +358,12 @@ int intel_pmdemand_atomic_check(struct intel_atomic_state *state)
if (DISPLAY_VER(display) < 30) {
new_pmdemand_state->params.active_dbufs =
min_t(u8, hweight8(new_dbuf_state->enabled_slices), 3);
min_t(u8, intel_dbuf_num_enabled_slices(new_dbuf_state), 3);
new_pmdemand_state->params.active_pipes =
min_t(u8, hweight8(new_dbuf_state->active_pipes), 3);
min_t(u8, intel_dbuf_num_active_pipes(new_dbuf_state), 3);
} else {
new_pmdemand_state->params.active_pipes =
min_t(u8, hweight8(new_dbuf_state->active_pipes), INTEL_NUM_PIPES(display));
min_t(u8, intel_dbuf_num_active_pipes(new_dbuf_state), INTEL_NUM_PIPES(display));
}
new_cdclk_state = intel_atomic_get_cdclk_state(state);

10
drivers/gpu/drm/i915/display/skl_watermark.c
View File

@ -3704,6 +3704,16 @@ void intel_dbuf_post_plane_update(struct intel_atomic_state *state)
gen9_dbuf_slices_update(display, new_slices);
}
int intel_dbuf_num_enabled_slices(const struct intel_dbuf_state *dbuf_state)
{
return hweight8(dbuf_state->enabled_slices);
}
int intel_dbuf_num_active_pipes(const struct intel_dbuf_state *dbuf_state)
{
return hweight8(dbuf_state->active_pipes);
}
bool intel_dbuf_pmdemand_needs_update(struct intel_atomic_state *state)
{
struct intel_display *display = to_intel_display(state);

3
drivers/gpu/drm/i915/display/skl_watermark.h
View File

@ -78,6 +78,9 @@ struct intel_dbuf_state {
struct intel_dbuf_state *
intel_atomic_get_dbuf_state(struct intel_atomic_state *state);
int intel_dbuf_num_enabled_slices(const struct intel_dbuf_state *dbuf_state);
int intel_dbuf_num_active_pipes(const struct intel_dbuf_state *dbuf_state);
int intel_dbuf_init(struct intel_display *display);
int intel_dbuf_state_set_mdclk_cdclk_ratio(struct intel_atomic_state *state,
int ratio);