Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-27 14:41:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

iommu/amd: Introduce struct amd_ir_data.iommu

Browse Source 
Add a pointer to struct amd_iommu to amd_ir_data structure, which
can be used to correlate interrupt remapping data to a per-PCI-segment
interrupt remapping table.

Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-18-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Suravee Suthikulpanit 2022-07-06 17:08:07 +05:30 committed by Joerg Roedel
parent 9873ae6e94
commit 9457d75c05
2 changed files with 16 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/iommu/amd/amd_iommu_types.h
View File

@ -989,6 +989,7 @@ struct irq_2_irte {
struct amd_ir_data {
u32 cached_ga_tag;
struct amd_iommu *iommu;
struct irq_2_irte irq_2_irte;
struct msi_msg msi_entry;
void *entry; /* Pointer to union irte or struct irte_ga */

34
drivers/iommu/amd/iommu.c
View File

@ -3002,16 +3002,11 @@ static int modify_irte(u16 devid, int index, union irte *irte)
return 0;
}
static void free_irte(u16 devid, int index)
static void free_irte(struct amd_iommu *iommu, u16 devid, int index)
{
struct irq_remap_table *table;
struct amd_iommu *iommu;
unsigned long flags;
iommu = amd_iommu_rlookup_table[devid];
if (iommu == NULL)
return;
table = get_irq_table(iommu, devid);
if (!table)
return;
@ -3195,7 +3190,7 @@ static void irq_remapping_prepare_irte(struct amd_ir_data *data,
int devid, int index, int sub_handle)
{
struct irq_2_irte *irte_info = &data->irq_2_irte;
struct amd_iommu *iommu = amd_iommu_rlookup_table[devid];
struct amd_iommu *iommu = data->iommu;
if (!iommu)
return;
@ -3336,6 +3331,7 @@ static int irq_remapping_alloc(struct irq_domain *domain, unsigned int virq,
goto out_free_data;
}
data->iommu = iommu;
irq_data->hwirq = (devid << 16) + i;
irq_data->chip_data = data;
irq_data->chip = &amd_ir_chip;
@ -3352,7 +3348,7 @@ out_free_data:
kfree(irq_data->chip_data);
}
for (i = 0; i < nr_irqs; i++)
free_irte(devid, index + i);
free_irte(iommu, devid, index + i);
out_free_parent:
irq_domain_free_irqs_common(domain, virq, nr_irqs);
return ret;
@ -3371,7 +3367,7 @@ static void irq_remapping_free(struct irq_domain *domain, unsigned int virq,
if (irq_data && irq_data->chip_data) {
data = irq_data->chip_data;
irte_info = &data->irq_2_irte;
free_irte(irte_info->devid, irte_info->index);
free_irte(data->iommu, irte_info->devid, irte_info->index);
kfree(data->entry);
kfree(data);
}
@ -3389,7 +3385,7 @@ static int irq_remapping_activate(struct irq_domain *domain,
{
struct amd_ir_data *data = irq_data->chip_data;
struct irq_2_irte *irte_info = &data->irq_2_irte;
struct amd_iommu *iommu = amd_iommu_rlookup_table[irte_info->devid];
struct amd_iommu *iommu = data->iommu;
struct irq_cfg *cfg = irqd_cfg(irq_data);
if (!iommu)
@ -3406,7 +3402,7 @@ static void irq_remapping_deactivate(struct irq_domain *domain,
{
struct amd_ir_data *data = irq_data->chip_data;
struct irq_2_irte *irte_info = &data->irq_2_irte;
struct amd_iommu *iommu = amd_iommu_rlookup_table[irte_info->devid];
struct amd_iommu *iommu = data->iommu;
if (iommu)
iommu->irte_ops->deactivate(data->entry, irte_info->devid,
@ -3502,12 +3498,16 @@ EXPORT_SYMBOL(amd_iommu_deactivate_guest_mode);
static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info)
{
int ret;
struct amd_iommu *iommu;
struct amd_iommu_pi_data *pi_data = vcpu_info;
struct vcpu_data *vcpu_pi_info = pi_data->vcpu_data;
struct amd_ir_data *ir_data = data->chip_data;
struct irq_2_irte *irte_info = &ir_data->irq_2_irte;
struct iommu_dev_data *dev_data = search_dev_data(NULL, irte_info->devid);
struct iommu_dev_data *dev_data;
if (ir_data->iommu == NULL)
return -EINVAL;
dev_data = search_dev_data(ir_data->iommu, irte_info->devid);
/* Note:
* This device has never been set up for guest mode.
@ -3529,10 +3529,6 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info)
pi_data->is_guest_mode = false;
}
iommu = amd_iommu_rlookup_table[irte_info->devid];
if (iommu == NULL)
return -EINVAL;
pi_data->prev_ga_tag = ir_data->cached_ga_tag;
if (pi_data->is_guest_mode) {
ir_data->ga_root_ptr = (pi_data->base >> 12);
@ -3578,7 +3574,7 @@ static int amd_ir_set_affinity(struct irq_data *data,
struct irq_2_irte *irte_info = &ir_data->irq_2_irte;
struct irq_cfg *cfg = irqd_cfg(data);
struct irq_data *parent = data->parent_data;
struct amd_iommu *iommu = amd_iommu_rlookup_table[irte_info->devid];
struct amd_iommu *iommu = ir_data->iommu;
int ret;
if (!iommu)
@ -3648,7 +3644,7 @@ int amd_iommu_update_ga(int cpu, bool is_run, void *data)
!ref || !entry || !entry->lo.fields_vapic.guest_mode)
return 0;
iommu = amd_iommu_rlookup_table[devid];
iommu = ir_data->iommu;
if (!iommu)
return -ENODEV;