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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-11-21 10:59:01 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-11-22 11:51:08 +1000 |
| commit | 6f34be50bd1bdd2ff3c955940e033a80d05f248a (patch) | |
| tree | 7e9635a2e589cd3a49490a4656611c112e485059 /drivers/gpu/drm/radeon/radeon_irq_kms.c | |
| parent | f5a8020903932624cf020dc72455a10a3e005087 (diff) | |
| download | kernel_samsung_smdk4412-6f34be50bd1bdd2ff3c955940e033a80d05f248a.zip kernel_samsung_smdk4412-6f34be50bd1bdd2ff3c955940e033a80d05f248a.tar.gz kernel_samsung_smdk4412-6f34be50bd1bdd2ff3c955940e033a80d05f248a.tar.bz2 | |
drm/radeon/kms: add pageflip ioctl support (v3)
This adds support for dri2 pageflipping.
v2: precision updates from Mario Kleiner.
v3: Multihead fixes from Mario Kleiner; missing crtc offset
add note about update pending bit on pre-avivo chips
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_irq_kms.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_irq_kms.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index a108c7e..e0d1c6d 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -71,8 +71,10 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev) rdev->irq.gui_idle = false; for (i = 0; i < rdev->num_crtc; i++) rdev->irq.crtc_vblank_int[i] = false; - for (i = 0; i < 6; i++) + for (i = 0; i < 6; i++) { rdev->irq.hpd[i] = false; + rdev->irq.pflip[i] = false; + } radeon_irq_set(rdev); /* Clear bits */ radeon_irq_process(rdev); @@ -101,8 +103,10 @@ void radeon_driver_irq_uninstall_kms(struct drm_device *dev) rdev->irq.gui_idle = false; for (i = 0; i < rdev->num_crtc; i++) rdev->irq.crtc_vblank_int[i] = false; - for (i = 0; i < 6; i++) + for (i = 0; i < 6; i++) { rdev->irq.hpd[i] = false; + rdev->irq.pflip[i] = false; + } radeon_irq_set(rdev); } @@ -175,3 +179,34 @@ void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev) spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags); } +void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc) +{ + unsigned long irqflags; + + if (crtc < 0 || crtc >= rdev->num_crtc) + return; + + spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags); + if (rdev->ddev->irq_enabled && (++rdev->irq.pflip_refcount[crtc] == 1)) { + rdev->irq.pflip[crtc] = true; + radeon_irq_set(rdev); + } + spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags); +} + +void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc) +{ + unsigned long irqflags; + + if (crtc < 0 || crtc >= rdev->num_crtc) + return; + + spin_lock_irqsave(&rdev->irq.pflip_lock[crtc], irqflags); + BUG_ON(rdev->ddev->irq_enabled && rdev->irq.pflip_refcount[crtc] <= 0); + if (rdev->ddev->irq_enabled && (--rdev->irq.pflip_refcount[crtc] == 0)) { + rdev->irq.pflip[crtc] = false; + radeon_irq_set(rdev); + } + spin_unlock_irqrestore(&rdev->irq.pflip_lock[crtc], irqflags); +} + |