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drm/radeon: replace pflip and sw_int counters with atomics

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So we can skip the locking. Also renames sw_int to
ring_int, cause that better matches its purpose.

Signed-off-by: Christian Koenig <christian.koenig@amd.com>
This commit is contained in:
Christian Koenig
2012-05-17 19:52:00 +02:00
committed by Christian König
parent fb98257a9d
commit 736fc37fd7
7 changed files with 76 additions and 81 deletions
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10
drivers/gpu/drm/radeon/r100.c
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@@ -689,18 +689,18 @@ int r100_irq_set(struct radeon_device *rdev)
WREG32(R_000040_GEN_INT_CNTL, 0);
return -EINVAL;
}
if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
tmp |= RADEON_SW_INT_ENABLE;
}
if (rdev->irq.gui_idle) {
tmp |= RADEON_GUI_IDLE_MASK;
}
if (rdev->irq.crtc_vblank_int[0] ||
rdev->irq.pflip[0]) {
atomic_read(&rdev->irq.pflip[0])) {
tmp |= RADEON_CRTC_VBLANK_MASK;
}
if (rdev->irq.crtc_vblank_int[1] ||
rdev->irq.pflip[1]) {
atomic_read(&rdev->irq.pflip[1])) {
tmp |= RADEON_CRTC2_VBLANK_MASK;
}
if (rdev->irq.hpd[0]) {
@@ -775,7 +775,7 @@ int r100_irq_process(struct radeon_device *rdev)
rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (rdev->irq.pflip[0])
if (atomic_read(&rdev->irq.pflip[0]))
radeon_crtc_handle_flip(rdev, 0);
}
if (status & RADEON_CRTC2_VBLANK_STAT) {
@@ -784,7 +784,7 @@ int r100_irq_process(struct radeon_device *rdev)
rdev->pm.vblank_sync = true;
wake_up(&rdev->irq.vblank_queue);
}
if (rdev->irq.pflip[1])
if (atomic_read(&rdev->irq.pflip[1]))
radeon_crtc_handle_flip(rdev, 1);
}
if (status & RADEON_FP_DETECT_STAT) {