drm/radeon: skip async dma init on r6xx
The hw is buggy and it's not currently used, but it's
currently still initialized by the driver. Skip the init.
Skipping init also seems to improve stability with dpm on
some r6xx asics.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=66963
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 3dce370..4d69d17 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2612,6 +2612,11 @@
ring->ready = false;
return r;
}
+
+ /* RV7xx+ uses dma for paging */
+ if (rdev->family < CHIP_RV770)
+ radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
+
return 0;
}
@@ -2895,12 +2900,6 @@
return r;
}
- r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
- if (r) {
- dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
- return r;
- }
-
/* Enable IRQ */
if (!rdev->irq.installed) {
r = radeon_irq_kms_init(rdev);
@@ -2922,12 +2921,6 @@
if (r)
return r;
- ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
- r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
- DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
- if (r)
- return r;
-
r = r600_cp_load_microcode(rdev);
if (r)
return r;
@@ -2935,10 +2928,6 @@
if (r)
return r;
- r = r600_dma_resume(rdev);
- if (r)
- return r;
-
r = radeon_ib_pool_init(rdev);
if (r) {
dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
@@ -2997,7 +2986,6 @@
radeon_pm_suspend(rdev);
r600_audio_fini(rdev);
r600_cp_stop(rdev);
- r600_dma_stop(rdev);
r600_irq_suspend(rdev);
radeon_wb_disable(rdev);
r600_pcie_gart_disable(rdev);
@@ -3077,9 +3065,6 @@
rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
- rdev->ring[R600_RING_TYPE_DMA_INDEX].ring_obj = NULL;
- r600_ring_init(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX], 64 * 1024);
-
rdev->ih.ring_obj = NULL;
r600_ih_ring_init(rdev, 64 * 1024);
@@ -3092,7 +3077,6 @@
if (r) {
dev_err(rdev->dev, "disabling GPU acceleration\n");
r600_cp_fini(rdev);
- r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);
@@ -3109,7 +3093,6 @@
radeon_pm_fini(rdev);
r600_audio_fini(rdev);
r600_cp_fini(rdev);
- r600_dma_fini(rdev);
r600_irq_fini(rdev);
radeon_wb_fini(rdev);
radeon_ib_pool_fini(rdev);