diff options
| author | Michael J. Ruhl <michael.j.ruhl@intel.com> | 2020-04-17 15:51:07 -0400 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2020-04-18 07:49:11 +0100 |
| commit | 31a02eb70b8d9e68c848f2543fa8e745073363e2 (patch) | |
| tree | 2c8790e6f8858f7ebf79d2dfafa3df84c905935c /drivers/char/agp | |
| parent | 7479f3c90a6d6f0a8c9b8a53b3856ac1002a8587 (diff) | |
| download | linux-31a02eb70b8d9e68c848f2543fa8e745073363e2.tar.gz | |
drm/i915: Refactor setting dma info to a common helper
DMA_MASK bit values are different for different generations.
This will become more difficult to manage over time with the open
coded usage of different versions of the device.
Fix by:
disallow setting of dma mask in AGP path (< GEN(5) for i915,
add dma_mask_size to the device info configuration,
updating open code call sequence to the latest interface,
refactoring into a common function for setting the dma segment
and mask info
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
cc: Brian Welty <brian.welty@intel.com>
cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200417195107.68732-1-michael.j.ruhl@intel.com
Diffstat (limited to 'drivers/char/agp')
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 3d42fc4290bc..4b34a5195c65 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1407,13 +1407,16 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name); - mask = intel_private.driver->dma_mask_size; - if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) - dev_err(&intel_private.pcidev->dev, - "set gfx device dma mask %d-bit failed!\n", mask); - else - pci_set_consistent_dma_mask(intel_private.pcidev, - DMA_BIT_MASK(mask)); + if (bridge) { + mask = intel_private.driver->dma_mask_size; + if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) + dev_err(&intel_private.pcidev->dev, + "set gfx device dma mask %d-bit failed!\n", + mask); + else + pci_set_consistent_dma_mask(intel_private.pcidev, + DMA_BIT_MASK(mask)); + } if (intel_gtt_init() != 0) { intel_gmch_remove(); |