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drm/radeon/kms: Fix up vertical blank interrupt support.

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Fixes 3D apps timing out in the WAIT_VBLANK ioctl.

AVIVO bits compile-tested only.

Signed-off-by: Michel Dänzer <daenzer@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Michel Dänzer
2009-08-13 11:10:51 +02:00
committed by Dave Airlie
parent 3f8befec95
commit 7ed220d738
9 changed files with 217 additions and 77 deletions
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82
drivers/gpu/drm/radeon/rs600.c
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@@ -239,6 +239,88 @@ void rs600_mc_fini(struct radeon_device *rdev)
}
/*
* Interrupts
*/
int rs600_irq_set(struct radeon_device *rdev)
{
uint32_t tmp = 0;
uint32_t mode_int = 0;
if (rdev->irq.sw_int) {
tmp |= RADEON_SW_INT_ENABLE;
}
if (rdev->irq.crtc_vblank_int[0]) {
tmp |= AVIVO_DISPLAY_INT_STATUS;
mode_int |= AVIVO_D1MODE_INT_MASK;
}
if (rdev->irq.crtc_vblank_int[1]) {
tmp |= AVIVO_DISPLAY_INT_STATUS;
mode_int |= AVIVO_D2MODE_INT_MASK;
}
WREG32(RADEON_GEN_INT_CNTL, tmp);
WREG32(AVIVO_DxMODE_INT_MASK, mode_int);
return 0;
}
static inline uint32_t rs600_irq_ack(struct radeon_device *rdev, u32 *r500_disp_int)
{
uint32_t irqs = RREG32(RADEON_GEN_INT_STATUS);
uint32_t irq_mask = RADEON_SW_INT_TEST;
if (irqs & AVIVO_DISPLAY_INT_STATUS) {
*r500_disp_int = RREG32(AVIVO_DISP_INTERRUPT_STATUS);
if (*r500_disp_int & AVIVO_D1_VBLANK_INTERRUPT) {
WREG32(AVIVO_D1MODE_VBLANK_STATUS, AVIVO_VBLANK_ACK);
}
if (*r500_disp_int & AVIVO_D2_VBLANK_INTERRUPT) {
WREG32(AVIVO_D2MODE_VBLANK_STATUS, AVIVO_VBLANK_ACK);
}
} else {
*r500_disp_int = 0;
}
if (irqs) {
WREG32(RADEON_GEN_INT_STATUS, irqs);
}
return irqs & irq_mask;
}
int rs600_irq_process(struct radeon_device *rdev)
{
uint32_t status;
uint32_t r500_disp_int;
status = rs600_irq_ack(rdev, &r500_disp_int);
if (!status && !r500_disp_int) {
return IRQ_NONE;
}
while (status || r500_disp_int) {
/* SW interrupt */
if (status & RADEON_SW_INT_TEST) {
radeon_fence_process(rdev);
}
/* Vertical blank interrupts */
if (r500_disp_int & AVIVO_D1_VBLANK_INTERRUPT) {
drm_handle_vblank(rdev->ddev, 0);
}
if (r500_disp_int & AVIVO_D2_VBLANK_INTERRUPT) {
drm_handle_vblank(rdev->ddev, 1);
}
status = rs600_irq_ack(rdev, &r500_disp_int);
}
return IRQ_HANDLED;
}
u32 rs600_get_vblank_counter(struct radeon_device *rdev, int crtc)
{
if (crtc == 0)
return RREG32(AVIVO_D1CRTC_FRAME_COUNT);
else
return RREG32(AVIVO_D2CRTC_FRAME_COUNT);
}
/*
* Global GPU functions
*/