diff options
| author | Christoph Hellwig <hch@lst.de> | 2022-02-14 14:11:44 +0100 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2022-04-18 07:21:10 +0200 |
| commit | 78013eaadf696d2105982abb4018fbae394ca08f (patch) | |
| tree | 018da6dc9f81f26fc4d5ce8df7e1a9e9903593ed /drivers | |
| parent | f39f8d0eb081407e470396fd4cc376c526d13066 (diff) | |
x86: remove the IOMMU table infrastructure
The IOMMU table tries to separate the different IOMMUs into different
backends, but actually requires various cross calls.
Rewrite the code to do the generic swiotlb/swiotlb-xen setup directly
in pci-dma.c and then just call into the IOMMU drivers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/amd/init.c | 6 | ||||
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 5 | ||||
| -rw-r--r-- | drivers/iommu/intel/dmar.c | 6 |
3 files changed, 5 insertions, 12 deletions
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index b4a798c7b347..1a3ad58ba846 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -27,7 +27,6 @@ #include <asm/apic.h> #include <asm/gart.h> #include <asm/x86_init.h> -#include <asm/iommu_table.h> #include <asm/io_apic.h> #include <asm/irq_remapping.h> #include <asm/set_memory.h> @@ -3257,11 +3256,6 @@ __setup("ivrs_ioapic", parse_ivrs_ioapic); __setup("ivrs_hpet", parse_ivrs_hpet); __setup("ivrs_acpihid", parse_ivrs_acpihid); -IOMMU_INIT_FINISH(amd_iommu_detect, - gart_iommu_hole_init, - NULL, - NULL); - bool amd_iommu_v2_supported(void) { return amd_iommu_v2_present; diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index a1ada7bff44e..b47220ac09ea 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -1840,7 +1840,10 @@ void amd_iommu_domain_update(struct protection_domain *domain) static void __init amd_iommu_init_dma_ops(void) { - swiotlb = (iommu_default_passthrough() || sme_me_mask) ? 1 : 0; + if (iommu_default_passthrough() || sme_me_mask) + x86_swiotlb_enable = true; + else + x86_swiotlb_enable = false; } int __init amd_iommu_init_api(void) diff --git a/drivers/iommu/intel/dmar.c b/drivers/iommu/intel/dmar.c index 4de960834a1b..592c1e1a5d4b 100644 --- a/drivers/iommu/intel/dmar.c +++ b/drivers/iommu/intel/dmar.c @@ -30,7 +30,6 @@ #include <linux/numa.h> #include <linux/limits.h> #include <asm/irq_remapping.h> -#include <asm/iommu_table.h> #include <trace/events/intel_iommu.h> #include "../irq_remapping.h" @@ -912,7 +911,7 @@ dmar_validate_one_drhd(struct acpi_dmar_header *entry, void *arg) return 0; } -int __init detect_intel_iommu(void) +void __init detect_intel_iommu(void) { int ret; struct dmar_res_callback validate_drhd_cb = { @@ -945,8 +944,6 @@ int __init detect_intel_iommu(void) dmar_tbl = NULL; } up_write(&dmar_global_lock); - - return ret ? ret : 1; } static void unmap_iommu(struct intel_iommu *iommu) @@ -2164,7 +2161,6 @@ static int __init dmar_free_unused_resources(void) } late_initcall(dmar_free_unused_resources); -IOMMU_INIT_POST(detect_intel_iommu); /* * DMAR Hotplug Support |