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authorBaolin Wang <baolin.wang@linux.alibaba.com>2020-06-12 11:39:55 +0800
committerJoerg Roedel <jroedel@suse.de>2020-07-24 14:29:47 +0200
commitf34ce7a7018c2f71d78fc7f512f6daf01e487114 (patch)
treec6fbf5b1870c665346ee0af9a96e99fd80f4394e /drivers/iommu
parent9930264fd997dad4c2cd8914cec7acab7c0ed984 (diff)
iommu: Add gfp parameter to io_pgtable_ops->map()
Now the ARM page tables are always allocated by GFP_ATOMIC parameter, but the iommu_ops->map() function has been added a gfp_t parameter by commit 781ca2de89ba ("iommu: Add gfp parameter to iommu_ops::map"), thus io_pgtable_ops->map() should use the gfp parameter passed from iommu_ops->map() to allocate page pages, which can avoid wasting the memory allocators atomic pools for some non-atomic contexts. Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/3093df4cb95497aaf713fca623ce4ecebb197c2e.1591930156.git.baolin.wang@linux.alibaba.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/arm-smmu-v3.c2
-rw-r--r--drivers/iommu/arm-smmu.c2
-rw-r--r--drivers/iommu/io-pgtable-arm-v7s.c18
-rw-r--r--drivers/iommu/io-pgtable-arm.c18
-rw-r--r--drivers/iommu/ipmmu-vmsa.c2
-rw-r--r--drivers/iommu/msm_iommu.c2
-rw-r--r--drivers/iommu/mtk_iommu.c2
-rw-r--r--drivers/iommu/qcom_iommu.c2
8 files changed, 24 insertions, 24 deletions
diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c
index f578677a5c41..7b59f06b3913 100644
--- a/drivers/iommu/arm-smmu-v3.c
+++ b/drivers/iommu/arm-smmu-v3.c
@@ -2850,7 +2850,7 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
if (!ops)
return -ENODEV;
- return ops->map(ops, iova, paddr, size, prot);
+ return ops->map(ops, iova, paddr, size, prot, gfp);
}
static size_t arm_smmu_unmap(struct iommu_domain *domain, unsigned long iova,
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 243bc4cb2705..dc1d2535798a 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1227,7 +1227,7 @@ static int arm_smmu_map(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
arm_smmu_rpm_get(smmu);
- ret = ops->map(ops, iova, paddr, size, prot);
+ ret = ops->map(ops, iova, paddr, size, prot, gfp);
arm_smmu_rpm_put(smmu);
return ret;
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 4272fe4e17f4..a688f22cbe3b 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -470,7 +470,7 @@ static arm_v7s_iopte arm_v7s_install_table(arm_v7s_iopte *table,
static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
phys_addr_t paddr, size_t size, int prot,
- int lvl, arm_v7s_iopte *ptep)
+ int lvl, arm_v7s_iopte *ptep, gfp_t gfp)
{
struct io_pgtable_cfg *cfg = &data->iop.cfg;
arm_v7s_iopte pte, *cptep;
@@ -491,7 +491,7 @@ static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
/* Grab a pointer to the next level */
pte = READ_ONCE(*ptep);
if (!pte) {
- cptep = __arm_v7s_alloc_table(lvl + 1, GFP_ATOMIC, data);
+ cptep = __arm_v7s_alloc_table(lvl + 1, gfp, data);
if (!cptep)
return -ENOMEM;
@@ -512,11 +512,11 @@ static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
}
/* Rinse, repeat */
- return __arm_v7s_map(data, iova, paddr, size, prot, lvl + 1, cptep);
+ return __arm_v7s_map(data, iova, paddr, size, prot, lvl + 1, cptep, gfp);
}
static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot)
+ phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
struct io_pgtable *iop = &data->iop;
@@ -530,7 +530,7 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
paddr >= (1ULL << data->iop.cfg.oas)))
return -ERANGE;
- ret = __arm_v7s_map(data, iova, paddr, size, prot, 1, data->pgd);
+ ret = __arm_v7s_map(data, iova, paddr, size, prot, 1, data->pgd, gfp);
/*
* Synchronise all PTE updates for the new mapping before there's
* a chance for anything to kick off a table walk for the new iova.
@@ -922,12 +922,12 @@ static int __init arm_v7s_do_selftests(void)
if (ops->map(ops, iova, iova, size, IOMMU_READ |
IOMMU_WRITE |
IOMMU_NOEXEC |
- IOMMU_CACHE))
+ IOMMU_CACHE, GFP_KERNEL))
return __FAIL(ops);
/* Overlapping mappings */
if (!ops->map(ops, iova, iova + size, size,
- IOMMU_READ | IOMMU_NOEXEC))
+ IOMMU_READ | IOMMU_NOEXEC, GFP_KERNEL))
return __FAIL(ops);
if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
@@ -946,7 +946,7 @@ static int __init arm_v7s_do_selftests(void)
return __FAIL(ops);
/* Remap of partial unmap */
- if (ops->map(ops, iova_start + size, size, size, IOMMU_READ))
+ if (ops->map(ops, iova_start + size, size, size, IOMMU_READ, GFP_KERNEL))
return __FAIL(ops);
if (ops->iova_to_phys(ops, iova_start + size + 42)
@@ -967,7 +967,7 @@ static int __init arm_v7s_do_selftests(void)
return __FAIL(ops);
/* Remap full block */
- if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
+ if (ops->map(ops, iova, iova, size, IOMMU_WRITE, GFP_KERNEL))
return __FAIL(ops);
if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index 04fbd4bf0ff9..4a5a7b083a9b 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -355,7 +355,7 @@ static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
phys_addr_t paddr, size_t size, arm_lpae_iopte prot,
- int lvl, arm_lpae_iopte *ptep)
+ int lvl, arm_lpae_iopte *ptep, gfp_t gfp)
{
arm_lpae_iopte *cptep, pte;
size_t block_size = ARM_LPAE_BLOCK_SIZE(lvl, data);
@@ -376,7 +376,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
/* Grab a pointer to the next level */
pte = READ_ONCE(*ptep);
if (!pte) {
- cptep = __arm_lpae_alloc_pages(tblsz, GFP_ATOMIC, cfg);
+ cptep = __arm_lpae_alloc_pages(tblsz, gfp, cfg);
if (!cptep)
return -ENOMEM;
@@ -396,7 +396,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
}
/* Rinse, repeat */
- return __arm_lpae_map(data, iova, paddr, size, prot, lvl + 1, cptep);
+ return __arm_lpae_map(data, iova, paddr, size, prot, lvl + 1, cptep, gfp);
}
static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
@@ -461,7 +461,7 @@ static arm_lpae_iopte arm_lpae_prot_to_pte(struct arm_lpae_io_pgtable *data,
}
static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
- phys_addr_t paddr, size_t size, int iommu_prot)
+ phys_addr_t paddr, size_t size, int iommu_prot, gfp_t gfp)
{
struct arm_lpae_io_pgtable *data = io_pgtable_ops_to_data(ops);
struct io_pgtable_cfg *cfg = &data->iop.cfg;
@@ -483,7 +483,7 @@ static int arm_lpae_map(struct io_pgtable_ops *ops, unsigned long iova,
return -ERANGE;
prot = arm_lpae_prot_to_pte(data, iommu_prot);
- ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep);
+ ret = __arm_lpae_map(data, iova, paddr, size, prot, lvl, ptep, gfp);
/*
* Synchronise all PTE updates for the new mapping before there's
* a chance for anything to kick off a table walk for the new iova.
@@ -1178,12 +1178,12 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
if (ops->map(ops, iova, iova, size, IOMMU_READ |
IOMMU_WRITE |
IOMMU_NOEXEC |
- IOMMU_CACHE))
+ IOMMU_CACHE, GFP_KERNEL))
return __FAIL(ops, i);
/* Overlapping mappings */
if (!ops->map(ops, iova, iova + size, size,
- IOMMU_READ | IOMMU_NOEXEC))
+ IOMMU_READ | IOMMU_NOEXEC, GFP_KERNEL))
return __FAIL(ops, i);
if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
@@ -1198,7 +1198,7 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
return __FAIL(ops, i);
/* Remap of partial unmap */
- if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ))
+ if (ops->map(ops, SZ_1G + size, size, size, IOMMU_READ, GFP_KERNEL))
return __FAIL(ops, i);
if (ops->iova_to_phys(ops, SZ_1G + size + 42) != (size + 42))
@@ -1216,7 +1216,7 @@ static int __init arm_lpae_run_tests(struct io_pgtable_cfg *cfg)
return __FAIL(ops, i);
/* Remap full block */
- if (ops->map(ops, iova, iova, size, IOMMU_WRITE))
+ if (ops->map(ops, iova, iova, size, IOMMU_WRITE, GFP_KERNEL))
return __FAIL(ops, i);
if (ops->iova_to_phys(ops, iova + 42) != (iova + 42))
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index 4c2972f3153b..87475b2f7ef1 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -687,7 +687,7 @@ static int ipmmu_map(struct iommu_domain *io_domain, unsigned long iova,
if (!domain)
return -ENODEV;
- return domain->iop->map(domain->iop, iova, paddr, size, prot);
+ return domain->iop->map(domain->iop, iova, paddr, size, prot, gfp);
}
static size_t ipmmu_unmap(struct iommu_domain *io_domain, unsigned long iova,
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index f773cc85f311..3615cd6241c4 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -491,7 +491,7 @@ static int msm_iommu_map(struct iommu_domain *domain, unsigned long iova,
int ret;
spin_lock_irqsave(&priv->pgtlock, flags);
- ret = priv->iop->map(priv->iop, iova, pa, len, prot);
+ ret = priv->iop->map(priv->iop, iova, pa, len, prot, GFP_ATOMIC);
spin_unlock_irqrestore(&priv->pgtlock, flags);
return ret;
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 2be96f1cdbd2..b7b16414a217 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -397,7 +397,7 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
paddr |= BIT_ULL(32);
/* Synchronize with the tlb_lock */
- return dom->iop->map(dom->iop, iova, paddr, size, prot);
+ return dom->iop->map(dom->iop, iova, paddr, size, prot, gfp);
}
static size_t mtk_iommu_unmap(struct iommu_domain *domain,
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index c3e1fbd1988c..cfcfd7553b30 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -441,7 +441,7 @@ static int qcom_iommu_map(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
spin_lock_irqsave(&qcom_domain->pgtbl_lock, flags);
- ret = ops->map(ops, iova, paddr, size, prot);
+ ret = ops->map(ops, iova, paddr, size, prot, GFP_ATOMIC);
spin_unlock_irqrestore(&qcom_domain->pgtbl_lock, flags);
return ret;
}