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drm/i915: Kill fbc_enable from hsw_lp_wm_results

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We don't need to store the FBC WM enabled status in each watermark
level. We anyway have to reduce it down to a single boolean, so just
delay checking the FBC WM limit until we're computing the final
value.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ville Syrjälä 2013-08-06 22:24:03 +03:00 committed by Daniel Vetter
parent 6f5ddd1704
commit 71fff20ff1
1 changed files with 2 additions and 10 deletions
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12
drivers/gpu/drm/i915/intel_pm.c
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@ -2182,7 +2182,6 @@ struct hsw_wm_maximums {
struct hsw_lp_wm_result {
bool enable;
bool fbc_enable;
uint32_t pri_val;
uint32_t spr_val;
uint32_t cur_val;
@ -2324,13 +2323,6 @@ static bool hsw_compute_lp_wm(struct drm_i915_private *dev_priv,
result->fbc_val = max3(res[0].fbc_val, res[1].fbc_val, res[2].fbc_val);
result->enable = true;
if (result->fbc_val > max->fbc) {
result->fbc_enable = false;
result->fbc_val = 0;
} else {
result->fbc_enable = true;
}
if (!result->enable)
return false;
@ -2575,9 +2567,9 @@ static void hsw_compute_wm_results(struct drm_device *dev,
* a WM level. */
results->enable_fbc_wm = true;
for (level = 1; level <= max_level; level++) {
if (!lp_results[level - 1].fbc_enable) {
if (!lp_results[level - 1].fbc_val > lp_maximums->fbc) {
results->enable_fbc_wm = false;
break;
lp_results[level - 1].fbc_val = 0;
}
}