[PATCH v4 1/4] arm-smmu: move MSI_IOVA macro definitions
From: Shyam Saini <hidden>
Date: 2025-09-09 15:46:15
Also in:
linux-devicetree, linux-iommu, virtualization
Subsystem:
arm smmu drivers, iommu subsystem, the rest, virtio iommu driver · Maintainers:
Will Deacon, Joerg Roedel, Linus Torvalds, Jean-Philippe Brucker
MSI_IOVA* are common among different iommu/smu drivers, so move them to common iommu.h header file. Suggested-by: Jacob Pan <redacted> Signed-off-by: Shyam Saini <redacted> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 3 --- drivers/iommu/arm/arm-smmu/arm-smmu.c | 3 --- drivers/iommu/virtio-iommu.c | 2 -- include/linux/iommu.h | 3 +++ 4 files changed, 3 insertions(+), 8 deletions(-)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
index ae23aacc38402..16f5856b4c0e2 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h@@ -505,9 +505,6 @@ static inline unsigned int arm_smmu_cdtab_l2_idx(unsigned int ssid) #define ARM_SMMU_POLL_TIMEOUT_US 1000000 /* 1s! */ #define ARM_SMMU_POLL_SPIN_COUNT 10 -#define MSI_IOVA_BASE 0x8000000 -#define MSI_IOVA_LENGTH 0x100000 - enum pri_resp { PRI_RESP_DENY = 0, PRI_RESP_FAIL = 1,
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 4ced4b5bee4df..4a07650911991 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c@@ -50,9 +50,6 @@ */ #define QCOM_DUMMY_VAL -1 -#define MSI_IOVA_BASE 0x8000000 -#define MSI_IOVA_LENGTH 0x100000 - static int force_stage; module_param(force_stage, int, S_IRUGO); MODULE_PARM_DESC(force_stage,
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index b39d6f134ab28..f3d830656cf29 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c@@ -24,8 +24,6 @@ #include "dma-iommu.h" -#define MSI_IOVA_BASE 0x8000000 -#define MSI_IOVA_LENGTH 0x100000 #define VIOMMU_REQUEST_VQ 0 #define VIOMMU_EVENT_VQ 1
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index c30d12e16473d..09a35af5a545d 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h@@ -1554,6 +1554,9 @@ static inline void iommu_debugfs_setup(void) {} #endif #ifdef CONFIG_IOMMU_DMA +#define MSI_IOVA_BASE 0x8000000 +#define MSI_IOVA_LENGTH 0x100000 + int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base); #else /* CONFIG_IOMMU_DMA */ static inline int iommu_get_msi_cookie(struct iommu_domain *domain, dma_addr_t base)
--
2.34.1