[PATCH v7 09/24] iommu/amd: Expose [set|get]_dev_entry_bit()
From: Ricardo Neri <hidden>
Date: 2023-03-01 23:38:33
Also in:
lkml
Subsystem:
amd iommu (amd-vi), iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
If an interrupt is allocated with NMI as delivery mode, the Device Table Entry needs to be modified accordingly in irq_remapping_alloc(). No functional changes. Cc: Andi Kleen <redacted> Cc: "Ravi V. Shankar" <redacted> Cc: Joerg Roedel <joro@8bytes.org> Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Cc: Stephane Eranian <redacted> Cc: iommu@lists.linux-foundation.org Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Ricardo Neri <redacted> --- Changes since v6: * None Changes since v5: * Introduced this patch Changes since v4: * N/A Changes since v3: * N/A Changes since v2: * N/A Changes since v1: * N/A --- drivers/iommu/amd/amd_iommu.h | 3 +++ drivers/iommu/amd/init.c | 4 ++-- 2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/amd/amd_iommu.h b/drivers/iommu/amd/amd_iommu.h
index c160a332ce33..b9b87a8cd48e 100644
--- a/drivers/iommu/amd/amd_iommu.h
+++ b/drivers/iommu/amd/amd_iommu.h@@ -141,4 +141,7 @@ extern u64 amd_iommu_efr; extern u64 amd_iommu_efr2; extern bool amd_iommu_snp_en; + +extern void set_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit); +extern int get_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit); #endif
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 19a46b9f7357..559a9ecb785f 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c@@ -999,7 +999,7 @@ static void __set_dev_entry_bit(struct dev_table_entry *dev_table, dev_table[devid].data[i] |= (1UL << _bit); } -static void set_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) +void set_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) { struct dev_table_entry *dev_table = get_dev_table(iommu);
@@ -1015,7 +1015,7 @@ static int __get_dev_entry_bit(struct dev_table_entry *dev_table, return (dev_table[devid].data[i] & (1UL << _bit)) >> _bit; } -static int get_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) +int get_dev_entry_bit(struct amd_iommu *iommu, u16 devid, u8 bit) { struct dev_table_entry *dev_table = get_dev_table(iommu);
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2.25.1