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authorMichael J. Ruhl <michael.j.ruhl@intel.com>2020-04-17 22:51:07 +0300
committerChris Wilson <chris@chris-wilson.co.uk>2020-04-18 09:49:11 +0300
commit31a02eb70b8d9e68c848f2543fa8e745073363e2 (patch)
tree2c8790e6f8858f7ebf79d2dfafa3df84c905935c /drivers/char/agp
parent7479f3c90a6d6f0a8c9b8a53b3856ac1002a8587 (diff)
downloadlinux-31a02eb70b8d9e68c848f2543fa8e745073363e2.tar.xz
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.c17
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();