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Lines 356-361
static int intel_iommu_strict;
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| 356 |
static int intel_iommu_superpage = 1; |
356 |
static int intel_iommu_superpage = 1; |
| 357 |
static int iommu_identity_mapping; |
357 |
static int iommu_identity_mapping; |
| 358 |
static int intel_no_bounce; |
358 |
static int intel_no_bounce; |
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359 |
static int iommu_skip_te_disable; |
| 359 |
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360 |
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| 360 |
#define IDENTMAP_GFX 2 |
361 |
#define IDENTMAP_GFX 2 |
| 361 |
#define IDENTMAP_AZALIA 4 |
362 |
#define IDENTMAP_AZALIA 4 |
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Lines 1633-1638
static void iommu_disable_translation(struct intel_iommu *iommu)
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| 1633 |
u32 sts; |
1634 |
u32 sts; |
| 1634 |
unsigned long flag; |
1635 |
unsigned long flag; |
| 1635 |
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1636 |
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1637 |
if (iommu_skip_te_disable && iommu->drhd->gfx_dedicated && |
| 1638 |
(cap_read_drain(iommu->cap) || cap_write_drain(iommu->cap))) |
| 1639 |
return; |
| 1640 |
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| 1636 |
raw_spin_lock_irqsave(&iommu->register_lock, flag); |
1641 |
raw_spin_lock_irqsave(&iommu->register_lock, flag); |
| 1637 |
iommu->gcmd &= ~DMA_GCMD_TE; |
1642 |
iommu->gcmd &= ~DMA_GCMD_TE; |
| 1638 |
writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG); |
1643 |
writel(iommu->gcmd, iommu->reg + DMAR_GCMD_REG); |
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Lines 4043-4048
static void __init init_no_remapping_devices(void)
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| 4043 |
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4048 |
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| 4044 |
/* This IOMMU has *only* gfx devices. Either bypass it or |
4049 |
/* This IOMMU has *only* gfx devices. Either bypass it or |
| 4045 |
set the gfx_mapped flag, as appropriate */ |
4050 |
set the gfx_mapped flag, as appropriate */ |
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4051 |
drhd->gfx_dedicated = 1; |
| 4046 |
if (!dmar_map_gfx) { |
4052 |
if (!dmar_map_gfx) { |
| 4047 |
drhd->ignored = 1; |
4053 |
drhd->ignored = 1; |
| 4048 |
for_each_active_dev_scope(drhd->devices, |
4054 |
for_each_active_dev_scope(drhd->devices, |
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Lines 6160-6165
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0044, quirk_calpella_no_shadow_g
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| 6160 |
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0062, quirk_calpella_no_shadow_gtt); |
6166 |
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x0062, quirk_calpella_no_shadow_gtt); |
| 6161 |
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x006a, quirk_calpella_no_shadow_gtt); |
6167 |
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x006a, quirk_calpella_no_shadow_gtt); |
| 6162 |
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6168 |
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6169 |
static void quirk_igfx_skip_te_disable(struct pci_dev *dev) |
| 6170 |
{ |
| 6171 |
unsigned short ver; |
| 6172 |
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| 6173 |
if (!IS_GFX_DEVICE(dev)) |
| 6174 |
return; |
| 6175 |
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| 6176 |
ver = (dev->device >> 8) & 0xff; |
| 6177 |
if (ver != 0x45 && ver != 0x4e && ver != 0x8a && |
| 6178 |
ver != 0x98 && ver != 0x9a && ver != 0x46 && ver != 0x4c) |
| 6179 |
return; |
| 6180 |
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| 6181 |
if (risky_device(dev)) |
| 6182 |
return; |
| 6183 |
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| 6184 |
pci_info(dev, "Skip IOMMU disabling for graphics\n"); |
| 6185 |
iommu_skip_te_disable = 1; |
| 6186 |
} |
| 6187 |
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_igfx_skip_te_disable); |
| 6188 |
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| 6163 |
/* On Tylersburg chipsets, some BIOSes have been known to enable the |
6189 |
/* On Tylersburg chipsets, some BIOSes have been known to enable the |
| 6164 |
ISOCH DMAR unit for the Azalia sound device, but not give it any |
6190 |
ISOCH DMAR unit for the Azalia sound device, but not give it any |
| 6165 |
TLB entries, which causes it to deadlock. Check for that. We do |
6191 |
TLB entries, which causes it to deadlock. Check for that. We do |