[Intel-gfx] [PATCH 2/2] drm/amdgpu: Use per-device driver_features to disable atomic

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Disable atomic on a per-device basis instead of for all devices.
Made possible by the new device.driver_features thing.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou at amd.com>
Cc: Harry Wentland <harry.wentland at amd.com>
Cc: Michel Dänzer <michel at daenzer.net>
Suggested-by: Michel Dänzer <michel at daenzer.net>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 6870909da926..8c1db96be070 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -816,17 +816,13 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		return ret;
 
-	/* warn the user if they mix atomic and non-atomic capable GPUs */
-	if ((kms_driver.driver_features & DRIVER_ATOMIC) && !supports_atomic)
-		DRM_ERROR("Mixing atomic and non-atomic capable GPUs!\n");
-	/* support atomic early so the atomic debugfs stuff gets created */
-	if (supports_atomic)
-		kms_driver.driver_features |= DRIVER_ATOMIC;
-
 	dev = drm_dev_alloc(&kms_driver, &pdev->dev);
 	if (IS_ERR(dev))
 		return PTR_ERR(dev);
 
+	if (!supports_atomic)
+		dev->driver_features &= ~DRIVER_ATOMIC;
+
 	ret = pci_enable_device(pdev);
 	if (ret)
 		goto err_free;
@@ -1078,7 +1074,7 @@ amdgpu_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe,
 
 static struct drm_driver kms_driver = {
 	.driver_features =
-	    DRIVER_USE_AGP |
+	    DRIVER_USE_AGP | DRIVER_ATOMIC |
 	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM |
 	    DRIVER_PRIME | DRIVER_RENDER | DRIVER_MODESET | DRIVER_SYNCOBJ,
 	.load = amdgpu_driver_load_kms,
-- 
2.16.4