From: Alex Deucher <alexander.deucher@xxxxxxx>
This might be called before we've allocated the radeon_crtcs
v2: fix typo in array size
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/rs600.c | 16 ++++++++++++----
1 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 5301b3d..31b84b6 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -46,19 +46,27 @@
void rs600_gpu_init(struct radeon_device *rdev);
int rs600_mc_wait_for_idle(struct radeon_device *rdev);
+static const u32 crtc_offsets[2] =
+{
+ 0,
+ AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
+};
+
void avivo_wait_for_vblank(struct radeon_device *rdev, int crtc)
{
- struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc];
int i;
- if (RREG32(AVIVO_D1CRTC_CONTROL + radeon_crtc->crtc_offset) & AVIVO_CRTC_EN) {
+ if (crtc >= rdev->num_crtc)
+ return;
+
+ if (RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[crtc]) & AVIVO_CRTC_EN) {
for (i = 0; i < rdev->usec_timeout; i++) {
- if (!(RREG32(AVIVO_D1CRTC_STATUS + radeon_crtc->crtc_offset) & AVIVO_D1CRTC_V_BLANK))
+ if (!(RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK))
break;
udelay(1);
}
for (i = 0; i < rdev->usec_timeout; i++) {
- if (RREG32(AVIVO_D1CRTC_STATUS + radeon_crtc->crtc_offset) & AVIVO_D1CRTC_V_BLANK)
+ if (RREG32(AVIVO_D1CRTC_STATUS + crtc_offsets[crtc]) & AVIVO_D1CRTC_V_BLANK)
break;
udelay(1);
}
--
1.7.7.5
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