diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu.h | 2 | ||||
| -rw-r--r-- | drivers/iommu/amd/init.c | 59 | ||||
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 2 |
3 files changed, 41 insertions, 22 deletions
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h index 2947239700ce..64c954e168d7 100644 --- a/drivers/iommu/amd/amd_iommu.h +++ b/drivers/iommu/amd/amd_iommu.h @@ -13,7 +13,7 @@ extern irqreturn_t amd_iommu_int_thread(int irq, void *data); extern irqreturn_t amd_iommu_int_handler(int irq, void *data); -extern void amd_iommu_apply_erratum_63(u16 devid); +extern void amd_iommu_apply_erratum_63(struct amd_iommu *iommu, u16 devid); extern void amd_iommu_restart_event_logging(struct amd_iommu *iommu); extern int amd_iommu_init_devices(void); extern void amd_iommu_uninit_devices(void); diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index d6a24032a948..bb8589750fb6 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -989,22 +989,37 @@ static void iommu_enable_gt(struct amd_iommu *iommu) } /* sets a specific bit in the device table entry. */ -static void set_dev_entry_bit(u16 devid, u8 bit) +static void __set_dev_entry_bit(struct dev_table_entry *dev_table, + u16 devid, u8 bit) { int i = (bit >> 6) & 0x03; int _bit = bit & 0x3f; - amd_iommu_dev_table[devid].data[i] |= (1UL << _bit); + dev_table[devid].data[i] |= (1UL << _bit); } -static int get_dev_entry_bit(u16 devid, u8 bit) +static void set_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) +{ + struct dev_table_entry *dev_table = get_dev_table(iommu); + + return __set_dev_entry_bit(dev_table, devid, bit); +} + +static int __get_dev_entry_bit(struct dev_table_entry *dev_table, + u16 devid, u8 bit) { int i = (bit >> 6) & 0x03; int _bit = bit & 0x3f; - return (amd_iommu_dev_table[devid].data[i] & (1UL << _bit)) >> _bit; + return (dev_table[devid].data[i] & (1UL << _bit)) >> _bit; } +static int get_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) +{ + struct dev_table_entry *dev_table = get_dev_table(iommu); + + return __get_dev_entry_bit(dev_table, devid, bit); +} static bool __copy_device_table(struct amd_iommu *iommu) { @@ -1123,15 +1138,15 @@ static bool copy_device_table(void) return true; } -void amd_iommu_apply_erratum_63(u16 devid) +void amd_iommu_apply_erratum_63(struct amd_iommu *iommu, u16 devid) { int sysmgt; - sysmgt = get_dev_entry_bit(devid, DEV_ENTRY_SYSMGT1) | - (get_dev_entry_bit(devid, DEV_ENTRY_SYSMGT2) << 1); + sysmgt = get_dev_entry_bit(iommu, devid, DEV_ENTRY_SYSMGT1) | + (get_dev_entry_bit(iommu, devid, DEV_ENTRY_SYSMGT2) << 1); if (sysmgt == 0x01) - set_dev_entry_bit(devid, DEV_ENTRY_IW); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_IW); } /* Writes the specific IOMMU for a device into the rlookup table */ @@ -1148,21 +1163,21 @@ static void __init set_dev_entry_from_acpi(struct amd_iommu *iommu, u16 devid, u32 flags, u32 ext_flags) { if (flags & ACPI_DEVFLAG_INITPASS) - set_dev_entry_bit(devid, DEV_ENTRY_INIT_PASS); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_INIT_PASS); if (flags & ACPI_DEVFLAG_EXTINT) - set_dev_entry_bit(devid, DEV_ENTRY_EINT_PASS); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_EINT_PASS); if (flags & ACPI_DEVFLAG_NMI) - set_dev_entry_bit(devid, DEV_ENTRY_NMI_PASS); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_NMI_PASS); if (flags & ACPI_DEVFLAG_SYSMGT1) - set_dev_entry_bit(devid, DEV_ENTRY_SYSMGT1); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_SYSMGT1); if (flags & ACPI_DEVFLAG_SYSMGT2) - set_dev_entry_bit(devid, DEV_ENTRY_SYSMGT2); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_SYSMGT2); if (flags & ACPI_DEVFLAG_LINT0) - set_dev_entry_bit(devid, DEV_ENTRY_LINT0_PASS); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_LINT0_PASS); if (flags & ACPI_DEVFLAG_LINT1) - set_dev_entry_bit(devid, DEV_ENTRY_LINT1_PASS); + set_dev_entry_bit(iommu, devid, DEV_ENTRY_LINT1_PASS); - amd_iommu_apply_erratum_63(devid); + amd_iommu_apply_erratum_63(iommu, devid); set_iommu_for_device(iommu, devid); } @@ -2522,8 +2537,8 @@ static void init_device_table_dma(struct amd_iommu_pci_seg *pci_seg) return; for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) { - set_dev_entry_bit(devid, DEV_ENTRY_VALID); - set_dev_entry_bit(devid, DEV_ENTRY_TRANSLATION); + __set_dev_entry_bit(dev_table, devid, DEV_ENTRY_VALID); + __set_dev_entry_bit(dev_table, devid, DEV_ENTRY_TRANSLATION); } } @@ -2543,13 +2558,17 @@ static void __init uninit_device_table_dma(struct amd_iommu_pci_seg *pci_seg) static void init_device_table(void) { + struct amd_iommu_pci_seg *pci_seg; u32 devid; if (!amd_iommu_irq_remap) return; - for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) - set_dev_entry_bit(devid, DEV_ENTRY_IRQ_TBL_EN); + for_each_pci_segment(pci_seg) { + for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) + __set_dev_entry_bit(pci_seg->dev_table, + devid, DEV_ENTRY_IRQ_TBL_EN); + } } static void iommu_init_flags(struct amd_iommu *iommu) diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index f1fab4168101..7d431a0b80e5 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1607,7 +1607,7 @@ static void clear_dte_entry(struct amd_iommu *iommu, u16 devid) dev_table[devid].data[0] = DTE_FLAG_V | DTE_FLAG_TV; dev_table[devid].data[1] &= DTE_FLAG_MASK; - amd_iommu_apply_erratum_63(devid); + amd_iommu_apply_erratum_63(iommu, devid); } static void do_attach(struct iommu_dev_data *dev_data, |