diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-03-15 15:59:56 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2022-04-13 17:15:31 +0300 |
| commit | 529b43dfcd267f2773116611f2ce9cc755be986b (patch) | |
| tree | 44be00ce89323219883b09091f6e28621f912f04 /drivers | |
| parent | 20bea20a550a4343cdf473148372bd6a91369614 (diff) | |
| download | linux-stable-529b43dfcd267f2773116611f2ce9cc755be986b.tar.gz linux-stable-529b43dfcd267f2773116611f2ce9cc755be986b.tar.bz2 linux-stable-529b43dfcd267f2773116611f2ce9cc755be986b.zip | |
drm/i915/fbc: Streamline frontbuffer busy bits handling
If the frontbuffer bits say this fbc instance isn't affected just
skip the whole thing.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315140001.1172-3-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbc.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index 948f6bfe2233..f22d72794968 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -1273,6 +1273,7 @@ static void __intel_fbc_disable(struct intel_fbc *fbc) __intel_fbc_cleanup_cfb(fbc); fbc->state.plane = NULL; + fbc->busy_bits = 0; } static void __intel_fbc_post_update(struct intel_fbc *fbc) @@ -1328,11 +1329,14 @@ static void __intel_fbc_invalidate(struct intel_fbc *fbc, mutex_lock(&fbc->lock); - fbc->busy_bits |= intel_fbc_get_frontbuffer_bit(fbc) & frontbuffer_bits; + frontbuffer_bits &= intel_fbc_get_frontbuffer_bit(fbc); + if (!frontbuffer_bits) + goto out; - if (fbc->state.plane && fbc->busy_bits) - intel_fbc_deactivate(fbc, "frontbuffer write"); + fbc->busy_bits |= frontbuffer_bits; + intel_fbc_deactivate(fbc, "frontbuffer write"); +out: mutex_unlock(&fbc->lock); } @@ -1354,18 +1358,22 @@ static void __intel_fbc_flush(struct intel_fbc *fbc, { mutex_lock(&fbc->lock); + frontbuffer_bits &= intel_fbc_get_frontbuffer_bit(fbc); + if (!frontbuffer_bits) + goto out; + fbc->busy_bits &= ~frontbuffer_bits; if (origin == ORIGIN_FLIP || origin == ORIGIN_CURSOR_UPDATE) goto out; - if (!fbc->busy_bits && fbc->state.plane && - (frontbuffer_bits & intel_fbc_get_frontbuffer_bit(fbc))) { - if (fbc->active) - intel_fbc_nuke(fbc); - else if (!fbc->flip_pending) - __intel_fbc_post_update(fbc); - } + if (fbc->busy_bits) + goto out; + + if (fbc->active) + intel_fbc_nuke(fbc); + else if (!fbc->flip_pending) + __intel_fbc_post_update(fbc); out: mutex_unlock(&fbc->lock); |