On these platforms we're supposed to unconditonally pick the method 2
result instead of the minimum.
Signed-off-by: Paulo Zanoni <paulo.r.zan...@intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 23 ++++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index cab86690a0ba..40ce99c455f3 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4672,15 +4672,24 @@ static int skl_compute_plane_wm(const struct
drm_i915_private *dev_priv,
} else {
if ((wp->cpp * cstate->base.adjusted_mode.crtc_htotal /
wp->dbuf_block_size < 1) &&
- (wp->plane_bytes_per_line / wp->dbuf_block_size < 1))
+ (wp->plane_bytes_per_line / wp->dbuf_block_size < 1)) {
selected_result = method2;
- else if (ddb_allocation >=
- fixed16_to_u32_round_up(wp->plane_blocks_per_line))
- selected_result = min_fixed16(method1, method2);
- else if (latency >= wp->linetime_us)
- selected_result = min_fixed16(method1, method2);
- else
+ } else if (ddb_allocation >=
+ fixed16_to_u32_round_up(wp->plane_blocks_per_line)) {
+ if (INTEL_GEN(dev_priv) == 9 &&
+ !IS_GEMINILAKE(dev_priv))
+ selected_result = min_fixed16(method1, method2);
+ else
+ selected_result = method2;
+ } else if (latency >= wp->linetime_us) {
+ if (INTEL_GEN(dev_priv) == 9 &&
+ !IS_GEMINILAKE(dev_priv))
+ selected_result = min_fixed16(method1, method2);
+ else
+ selected_result = method2;
+ } else {
selected_result = method1;
+ }
}
res_blocks = fixed16_to_u32_round_up(selected_result) + 1;
--
2.14.4
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