From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
On HSW the LP1,LP2,LP3 levels are either 1,2,3 or 1,3,4. We make the
conversion from LPn to to the level at one point current. Later we're
going to do it in a few places, so move it to a separate function.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/intel_pm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 7b4f7d9..ee74352 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2686,6 +2686,12 @@ static void ilk_wm_merge(struct drm_device *dev,
}
}
+static int ilk_wm_lp_to_level(int wm_lp, const struct intel_pipe_wm *pipe_wm)
+{
+ /* LP1,LP2,LP3 levels are either 1,2,3 or 1,3,4 */
+ return wm_lp + (wm_lp >= 2 && pipe_wm->wm[4].enable);
+}
+
static void hsw_compute_wm_results(struct drm_device *dev,
const struct intel_pipe_wm *lp_wm,
struct hsw_wm_values *results)
@@ -2699,7 +2705,7 @@ static void hsw_compute_wm_results(struct drm_device *dev,
for (wm_lp = 1; wm_lp <= 3; wm_lp++) {
const struct intel_wm_level *r;
- level = wm_lp + (wm_lp >= 2 && lp_wm->wm[4].enable);
+ level = ilk_wm_lp_to_level(wm_lp, lp_wm);
r = &lp_wm->wm[level];
if (!r->enable)
--
1.8.1.5
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