Commit 0c02a20ff7695f9c54cc7c013dda326270ccdac8
1 parent
64de5af000
intel-iommu: Kill DMAR_BROKEN_GFX_WA option.
Just make it depend on BROKEN for now, in case people scream really loud about it (and because we might want to keep some of this logic for an upcoming BIOS workaround, so I don't just want to rip it out entirely just yet). But for graphics devices, it really ought to be unnecessary. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Showing 2 changed files with 2 additions and 6 deletions Side-by-side Diff
Documentation/Intel-IOMMU.txt
| ... | ... | @@ -56,11 +56,7 @@ |
| 56 | 56 | ------------------ |
| 57 | 57 | If you encounter issues with graphics devices, you can try adding |
| 58 | 58 | option intel_iommu=igfx_off to turn off the integrated graphics engine. |
| 59 | - | |
| 60 | -If it happens to be a PCI device included in the INCLUDE_ALL Engine, | |
| 61 | -then try enabling CONFIG_DMAR_GFX_WA to setup a 1-1 map. We hear | |
| 62 | -graphics drivers may be in process of using DMA api's in the near | |
| 63 | -future and at that time this option can be yanked out. | |
| 59 | +If this fixes anything, please ensure you file a bug reporting the problem. | |
| 64 | 60 | |
| 65 | 61 | Some exceptions to IOVA |
| 66 | 62 | ----------------------- |
arch/x86/Kconfig
| ... | ... | @@ -1916,7 +1916,7 @@ |
| 1916 | 1916 | config DMAR_BROKEN_GFX_WA |
| 1917 | 1917 | def_bool n |
| 1918 | 1918 | prompt "Workaround broken graphics drivers (going away soon)" |
| 1919 | - depends on DMAR | |
| 1919 | + depends on DMAR && BROKEN | |
| 1920 | 1920 | ---help--- |
| 1921 | 1921 | Current Graphics drivers tend to use physical address |
| 1922 | 1922 | for DMA and avoid using DMA APIs. Setting this config |