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path: root/drivers/gpu/drm/radeon/radeon_ring.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ring.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_ring.c15
1 files changed, 1 insertions, 14 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index a853261d1881..60d159308b88 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -126,32 +126,19 @@ static void radeon_ib_align(struct radeon_device *rdev, struct radeon_ib *ib)
126 } 126 }
127} 127}
128 128
129static void radeon_ib_cpu_flush(struct radeon_device *rdev,
130 struct radeon_ib *ib)
131{
132 unsigned long tmp;
133 unsigned i;
134
135 /* To force CPU cache flush ugly but seems reliable */
136 for (i = 0; i < ib->length_dw; i += (rdev->cp.align_mask + 1)) {
137 tmp = readl(&ib->ptr[i]);
138 }
139}
140
141int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib) 129int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
142{ 130{
143 int r = 0; 131 int r = 0;
144 132
145 mutex_lock(&rdev->ib_pool.mutex); 133 mutex_lock(&rdev->ib_pool.mutex);
146 radeon_ib_align(rdev, ib); 134 radeon_ib_align(rdev, ib);
147 radeon_ib_cpu_flush(rdev, ib);
148 if (!ib->length_dw || !rdev->cp.ready) { 135 if (!ib->length_dw || !rdev->cp.ready) {
149 /* TODO: Nothings in the ib we should report. */ 136 /* TODO: Nothings in the ib we should report. */
150 mutex_unlock(&rdev->ib_pool.mutex); 137 mutex_unlock(&rdev->ib_pool.mutex);
151 DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx); 138 DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx);
152 return -EINVAL; 139 return -EINVAL;
153 } 140 }
154 /* 64 dwords should be enought for fence too */ 141 /* 64 dwords should be enough for fence too */
155 r = radeon_ring_lock(rdev, 64); 142 r = radeon_ring_lock(rdev, 64);
156 if (r) { 143 if (r) {
157 DRM_ERROR("radeon: scheduling IB failled (%d).\n", r); 144 DRM_ERROR("radeon: scheduling IB failled (%d).\n", r);