From 29508eb66bfacdef324d2199eeaea31e0cdfaa29 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 22 Jul 2010 09:57:13 +1000 Subject: drm/radeon/kms: drop taking lock around crtc lookup. We only add/remove crtcs at driver load, you cannot remove when the GPU is running a CS packet since the fd is open, when GPU hotplugging on radeons actually is needed all this locking needs a review and I've started re-working kms core locking to deal with this better. But for now avoid long delays in CS processing when hotplug detect is happening in a different thread. this fixes a regression introduced with hotplug detection. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_cs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers/gpu/drm/radeon/r600_cs.c') diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index c39c1bc13016..144c32d37136 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -585,7 +585,7 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p) header = radeon_get_ib_value(p, h_idx); crtc_id = radeon_get_ib_value(p, h_idx + 2 + 7 + 1); reg = CP_PACKET0_GET_REG(header); - mutex_lock(&p->rdev->ddev->mode_config.mutex); + obj = drm_mode_object_find(p->rdev->ddev, crtc_id, DRM_MODE_OBJECT_CRTC); if (!obj) { DRM_ERROR("cannot find crtc %d\n", crtc_id); @@ -620,7 +620,6 @@ static int r600_cs_packet_parse_vline(struct radeon_cs_parser *p) ib[h_idx + 4] = AVIVO_D2MODE_VLINE_STATUS >> 2; } out: - mutex_unlock(&p->rdev->ddev->mode_config.mutex); return r; } -- cgit v1.2.1