drm/i915/skl+: Perform wm level calculations in separate function
Instead of iterating over planes & wm levels in a single function use
skl_compute_wm_level function to interate over WM levels.
Change name of function to skl_compute_wm_levels (Matt).
These changes are to clean-up WM code & will help in making only new
ddb algorithm related changes in later patch in series.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170517115831.13830-10-mahesh1.kumar@intel.com
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index c24a4e1..0f1d9f6 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4382,18 +4382,18 @@ static int skl_compute_plane_wm(const struct drm_i915_private *dev_priv,
}
static int
-skl_compute_wm_level(const struct drm_i915_private *dev_priv,
- struct skl_ddb_allocation *ddb,
- struct intel_crtc_state *cstate,
- const struct intel_plane_state *intel_pstate,
- int level,
- struct skl_wm_level *result)
+skl_compute_wm_levels(const struct drm_i915_private *dev_priv,
+ struct skl_ddb_allocation *ddb,
+ struct intel_crtc_state *cstate,
+ const struct intel_plane_state *intel_pstate,
+ struct skl_plane_wm *wm)
{
struct intel_crtc *intel_crtc = to_intel_crtc(cstate->base.crtc);
struct drm_plane *plane = intel_pstate->base.plane;
struct intel_plane *intel_plane = to_intel_plane(plane);
uint16_t ddb_blocks;
enum pipe pipe = intel_crtc->pipe;
+ int level, max_level = ilk_wm_max_level(dev_priv);
int ret;
if (WARN_ON(!intel_pstate->base.fb))
@@ -4401,16 +4401,20 @@ skl_compute_wm_level(const struct drm_i915_private *dev_priv,
ddb_blocks = skl_ddb_entry_size(&ddb->plane[pipe][intel_plane->id]);
- ret = skl_compute_plane_wm(dev_priv,
- cstate,
- intel_pstate,
- ddb_blocks,
- level,
- &result->plane_res_b,
- &result->plane_res_l,
- &result->plane_en);
- if (ret)
- return ret;
+ for (level = 0; level <= max_level; level++) {
+ struct skl_wm_level *result = &wm->wm[level];
+
+ ret = skl_compute_plane_wm(dev_priv,
+ cstate,
+ intel_pstate,
+ ddb_blocks,
+ level,
+ &result->plane_res_b,
+ &result->plane_res_l,
+ &result->plane_en);
+ if (ret)
+ return ret;
+ }
return 0;
}
@@ -4461,7 +4465,6 @@ static int skl_build_pipe_wm(struct intel_crtc_state *cstate,
struct drm_plane *plane;
const struct drm_plane_state *pstate;
struct skl_plane_wm *wm;
- int level, max_level = ilk_wm_max_level(dev_priv);
int ret;
/*
@@ -4477,13 +4480,10 @@ static int skl_build_pipe_wm(struct intel_crtc_state *cstate,
wm = &pipe_wm->planes[plane_id];
- for (level = 0; level <= max_level; level++) {
- ret = skl_compute_wm_level(dev_priv, ddb, cstate,
- intel_pstate, level,
- &wm->wm[level]);
- if (ret)
- return ret;
- }
+ ret = skl_compute_wm_levels(dev_priv, ddb, cstate,
+ intel_pstate, wm);
+ if (ret)
+ return ret;
skl_compute_transition_wm(cstate, &wm->trans_wm);
}
pipe_wm->linetime = skl_compute_linetime_wm(cstate);