From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
To: <linux-arm-kernel@lists.infradead.org>,
<linux-acpi@vger.kernel.org>, <iommu@lists.linux-foundation.org>,
<devel@acpica.org>
Cc: <linuxarm@huawei.com>, <lorenzo.pieralisi@arm.com>,
<joro@8bytes.org>, <robin.murphy@arm.com>,
<wanghuiqiang@huawei.com>, <guohanjun@huawei.com>,
<jonathan.cameron@huawei.com>, <steven.price@arm.com>,
<Sami.Mujawar@arm.com>
Subject: [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev
Date: Thu, 19 Nov 2020 12:11:50 +0000 [thread overview]
Message-ID: <20201119121150.3316-9-shameerali.kolothum.thodi@huawei.com> (raw)
In-Reply-To: <20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com>
Get RMR regions associated with a dev reserved so that there is
a unity mapping for them in SMMU.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 38 +++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 97df1df001c9..174a9bcfd627 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2492,6 +2492,43 @@ static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args)
return iommu_fwspec_add_ids(dev, args->args, 1);
}
+static bool arm_smmu_dev_has_rmr(struct arm_smmu_master *master,
+ struct iommu_rmr *e)
+{
+ int i, j;
+
+ for (i = 0; i < master->num_sids; i++) {
+ for (j = 0; j < e->num_ids; j++) {
+ if (e->ids[j] == master->sids[i])
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void arm_smmu_rmr_get_resv_regions(struct device *dev,
+ struct list_head *head)
+{
+ struct arm_smmu_master *master = dev_iommu_priv_get(dev);
+ struct arm_smmu_device *smmu = master->smmu;
+ struct iommu_rmr *rmr;
+
+ list_for_each_entry(rmr, &smmu->rmr_list, list) {
+ struct iommu_resv_region *region;
+ int prot = IOMMU_READ | IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
+
+ if (!arm_smmu_dev_has_rmr(master, rmr))
+ continue;
+ region = iommu_alloc_resv_region(rmr->base_address,
+ rmr->length, prot,
+ IOMMU_RESV_DIRECT);
+ if (!region)
+ return;
+
+ list_add_tail(®ion->list, head);
+ }
+}
static void arm_smmu_get_resv_regions(struct device *dev,
struct list_head *head)
{
@@ -2506,6 +2543,7 @@ static void arm_smmu_get_resv_regions(struct device *dev,
list_add_tail(®ion->list, head);
iommu_dma_get_resv_regions(dev, head);
+ arm_smmu_rmr_get_resv_regions(dev, head);
}
static bool arm_smmu_dev_has_feature(struct device *dev,
--
2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
To: <linux-arm-kernel@lists.infradead.org>,
<linux-acpi@vger.kernel.org>, <iommu@lists.linux-foundation.org>,
<devel@acpica.org>
Cc: linuxarm@huawei.com, steven.price@arm.com, guohanjun@huawei.com,
Sami.Mujawar@arm.com, robin.murphy@arm.com,
wanghuiqiang@huawei.com
Subject: [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev
Date: Thu, 19 Nov 2020 12:11:50 +0000 [thread overview]
Message-ID: <20201119121150.3316-9-shameerali.kolothum.thodi@huawei.com> (raw)
In-Reply-To: <20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com>
Get RMR regions associated with a dev reserved so that there is
a unity mapping for them in SMMU.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 38 +++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 97df1df001c9..174a9bcfd627 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2492,6 +2492,43 @@ static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args)
return iommu_fwspec_add_ids(dev, args->args, 1);
}
+static bool arm_smmu_dev_has_rmr(struct arm_smmu_master *master,
+ struct iommu_rmr *e)
+{
+ int i, j;
+
+ for (i = 0; i < master->num_sids; i++) {
+ for (j = 0; j < e->num_ids; j++) {
+ if (e->ids[j] == master->sids[i])
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void arm_smmu_rmr_get_resv_regions(struct device *dev,
+ struct list_head *head)
+{
+ struct arm_smmu_master *master = dev_iommu_priv_get(dev);
+ struct arm_smmu_device *smmu = master->smmu;
+ struct iommu_rmr *rmr;
+
+ list_for_each_entry(rmr, &smmu->rmr_list, list) {
+ struct iommu_resv_region *region;
+ int prot = IOMMU_READ | IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
+
+ if (!arm_smmu_dev_has_rmr(master, rmr))
+ continue;
+ region = iommu_alloc_resv_region(rmr->base_address,
+ rmr->length, prot,
+ IOMMU_RESV_DIRECT);
+ if (!region)
+ return;
+
+ list_add_tail(®ion->list, head);
+ }
+}
static void arm_smmu_get_resv_regions(struct device *dev,
struct list_head *head)
{
@@ -2506,6 +2543,7 @@ static void arm_smmu_get_resv_regions(struct device *dev,
list_add_tail(®ion->list, head);
iommu_dma_get_resv_regions(dev, head);
+ arm_smmu_rmr_get_resv_regions(dev, head);
}
static bool arm_smmu_dev_has_feature(struct device *dev,
--
2.17.1
_______________________________________________
iommu mailing list
iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu
WARNING: multiple messages have this Message-ID (diff)
From: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
To: <linux-arm-kernel@lists.infradead.org>,
<linux-acpi@vger.kernel.org>, <iommu@lists.linux-foundation.org>,
<devel@acpica.org>
Cc: lorenzo.pieralisi@arm.com, joro@8bytes.org,
jonathan.cameron@huawei.com, linuxarm@huawei.com,
steven.price@arm.com, guohanjun@huawei.com, Sami.Mujawar@arm.com,
robin.murphy@arm.com, wanghuiqiang@huawei.com
Subject: [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev
Date: Thu, 19 Nov 2020 12:11:50 +0000 [thread overview]
Message-ID: <20201119121150.3316-9-shameerali.kolothum.thodi@huawei.com> (raw)
In-Reply-To: <20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com>
Get RMR regions associated with a dev reserved so that there is
a unity mapping for them in SMMU.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 38 +++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 97df1df001c9..174a9bcfd627 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2492,6 +2492,43 @@ static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args)
return iommu_fwspec_add_ids(dev, args->args, 1);
}
+static bool arm_smmu_dev_has_rmr(struct arm_smmu_master *master,
+ struct iommu_rmr *e)
+{
+ int i, j;
+
+ for (i = 0; i < master->num_sids; i++) {
+ for (j = 0; j < e->num_ids; j++) {
+ if (e->ids[j] == master->sids[i])
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void arm_smmu_rmr_get_resv_regions(struct device *dev,
+ struct list_head *head)
+{
+ struct arm_smmu_master *master = dev_iommu_priv_get(dev);
+ struct arm_smmu_device *smmu = master->smmu;
+ struct iommu_rmr *rmr;
+
+ list_for_each_entry(rmr, &smmu->rmr_list, list) {
+ struct iommu_resv_region *region;
+ int prot = IOMMU_READ | IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
+
+ if (!arm_smmu_dev_has_rmr(master, rmr))
+ continue;
+ region = iommu_alloc_resv_region(rmr->base_address,
+ rmr->length, prot,
+ IOMMU_RESV_DIRECT);
+ if (!region)
+ return;
+
+ list_add_tail(®ion->list, head);
+ }
+}
static void arm_smmu_get_resv_regions(struct device *dev,
struct list_head *head)
{
@@ -2506,6 +2543,7 @@ static void arm_smmu_get_resv_regions(struct device *dev,
list_add_tail(®ion->list, head);
iommu_dma_get_resv_regions(dev, head);
+ arm_smmu_rmr_get_resv_regions(dev, head);
}
static bool arm_smmu_dev_has_feature(struct device *dev,
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
WARNING: multiple messages have this Message-ID (diff)
From: Shameer Kolothum <shameerali.kolothum.thodi at huawei.com>
To: devel@acpica.org
Subject: [Devel] [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev
Date: Thu, 19 Nov 2020 12:11:50 +0000 [thread overview]
Message-ID: <20201119121150.3316-9-shameerali.kolothum.thodi@huawei.com> (raw)
In-Reply-To: 20201119121150.3316-1-shameerali.kolothum.thodi@huawei.com
[-- Attachment #1: Type: text/plain, Size: 2041 bytes --]
Get RMR regions associated with a dev reserved so that there is
a unity mapping for them in SMMU.
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi(a)huawei.com>
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 38 +++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 97df1df001c9..174a9bcfd627 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2492,6 +2492,43 @@ static int arm_smmu_of_xlate(struct device *dev, struct of_phandle_args *args)
return iommu_fwspec_add_ids(dev, args->args, 1);
}
+static bool arm_smmu_dev_has_rmr(struct arm_smmu_master *master,
+ struct iommu_rmr *e)
+{
+ int i, j;
+
+ for (i = 0; i < master->num_sids; i++) {
+ for (j = 0; j < e->num_ids; j++) {
+ if (e->ids[j] == master->sids[i])
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void arm_smmu_rmr_get_resv_regions(struct device *dev,
+ struct list_head *head)
+{
+ struct arm_smmu_master *master = dev_iommu_priv_get(dev);
+ struct arm_smmu_device *smmu = master->smmu;
+ struct iommu_rmr *rmr;
+
+ list_for_each_entry(rmr, &smmu->rmr_list, list) {
+ struct iommu_resv_region *region;
+ int prot = IOMMU_READ | IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;
+
+ if (!arm_smmu_dev_has_rmr(master, rmr))
+ continue;
+ region = iommu_alloc_resv_region(rmr->base_address,
+ rmr->length, prot,
+ IOMMU_RESV_DIRECT);
+ if (!region)
+ return;
+
+ list_add_tail(®ion->list, head);
+ }
+}
static void arm_smmu_get_resv_regions(struct device *dev,
struct list_head *head)
{
@@ -2506,6 +2543,7 @@ static void arm_smmu_get_resv_regions(struct device *dev,
list_add_tail(®ion->list, head);
iommu_dma_get_resv_regions(dev, head);
+ arm_smmu_rmr_get_resv_regions(dev, head);
}
static bool arm_smmu_dev_has_feature(struct device *dev,
--
2.17.1
next prev parent reply other threads:[~2020-11-19 12:13 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-19 12:11 [RFC PATCH v2 0/8] ACPI/IORT: Support for IORT RMR node Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 1/8] ACPICA: IORT: Update for revision E Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2021-03-22 10:36 ` Shameerali Kolothum Thodi
2021-03-22 10:36 ` [Devel] " Shameerali Kolothum Thodi
2021-03-22 10:36 ` Shameerali Kolothum Thodi
2021-03-22 10:36 ` Shameerali Kolothum Thodi
2021-03-22 21:57 ` Kaneda, Erik
2021-03-22 21:57 ` Kaneda, Erik
2021-03-22 21:57 ` Kaneda, Erik
2021-03-23 15:53 ` Lorenzo Pieralisi
2021-03-23 15:53 ` [Devel] " Lorenzo Pieralisi
2021-03-23 15:53 ` Lorenzo Pieralisi
2021-03-23 15:53 ` Lorenzo Pieralisi
2021-03-23 18:51 ` Kaneda, Erik
2021-03-23 18:51 ` Kaneda, Erik
2021-03-23 18:51 ` Kaneda, Erik
2021-03-24 9:50 ` Lorenzo Pieralisi
2021-03-24 9:50 ` [Devel] " Lorenzo Pieralisi
2021-03-24 9:50 ` Lorenzo Pieralisi
2021-03-24 9:50 ` Lorenzo Pieralisi
2021-03-25 8:40 ` Jon Nettleton
2021-03-25 8:40 ` Jon Nettleton
2021-03-25 8:40 ` Jon Nettleton
2021-03-25 15:54 ` Shameerali Kolothum Thodi
2021-03-25 15:54 ` [Devel] " Shameerali Kolothum Thodi
2021-03-25 15:54 ` Shameerali Kolothum Thodi
2021-03-25 15:54 ` Shameerali Kolothum Thodi
2021-04-15 7:27 ` Auger Eric
2021-04-15 7:27 ` Auger Eric
2021-04-15 7:27 ` Auger Eric
2020-11-19 12:11 ` [RFC PATCH v2 2/8] ACPI/IORT: Add support for RMR node parsing Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2021-04-15 9:39 ` Auger Eric
2021-04-15 9:39 ` Auger Eric
2021-04-15 9:39 ` Auger Eric
2021-04-15 10:30 ` Shameerali Kolothum Thodi
2021-04-15 10:30 ` [Devel] " Shameerali Kolothum Thodi
2021-04-15 10:30 ` Shameerali Kolothum Thodi
2021-04-15 10:30 ` Shameerali Kolothum Thodi
2020-11-19 12:11 ` [RFC PATCH v2 3/8] iommu/dma: Introduce generic helper to retrieve RMR info Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 4/8] ACPI/IORT: Add RMR memory regions reservation helper Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 5/8] iommu/arm-smmu-v3: Introduce strtab init helper Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 6/8] iommu/arm-smmu-v3: Add bypass flag to arm_smmu_write_strtab_ent() Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` [RFC PATCH v2 7/8] iommu/arm-smmu-v3: Get associated RMR info and install bypass STE Shameer Kolothum
2020-11-19 12:11 ` [Devel] " Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum [this message]
2020-11-19 12:11 ` [Devel] [RFC PATCH v2 8/8] iommu/arm-smmu-v3: Reserve any RMR regions associated with a dev Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-11-19 12:11 ` Shameer Kolothum
2020-12-10 10:25 ` [RFC PATCH v2 0/8] ACPI/IORT: Support for IORT RMR node Steven Price
2020-12-10 10:25 ` Steven Price
2020-12-10 10:25 ` Steven Price
2020-12-14 10:55 ` Shameerali Kolothum Thodi
2020-12-14 10:55 ` [Devel] " Shameerali Kolothum Thodi
2020-12-14 10:55 ` Shameerali Kolothum Thodi
2020-12-14 10:55 ` Shameerali Kolothum Thodi
2020-12-14 12:33 ` Robin Murphy
2020-12-14 12:33 ` [Devel] " Robin Murphy
2020-12-14 12:33 ` Robin Murphy
2020-12-14 12:33 ` Robin Murphy
2020-12-14 13:42 ` Steven Price
2020-12-14 13:42 ` Steven Price
2020-12-14 13:42 ` Steven Price
2020-12-14 14:47 ` Shameerali Kolothum Thodi
2020-12-14 14:47 ` [Devel] " Shameerali Kolothum Thodi
2020-12-14 14:47 ` Shameerali Kolothum Thodi
2020-12-14 14:47 ` Shameerali Kolothum Thodi
2020-12-17 14:47 ` Jon Nettleton
2020-12-17 14:47 ` Jon Nettleton
2020-12-17 14:47 ` Jon Nettleton
2020-12-17 15:42 ` Shameerali Kolothum Thodi
2020-12-17 15:42 ` [Devel] " Shameerali Kolothum Thodi
2020-12-17 15:42 ` Shameerali Kolothum Thodi
2020-12-17 15:42 ` Shameerali Kolothum Thodi
2020-12-17 15:53 ` Jon Nettleton
2020-12-17 15:53 ` Jon Nettleton
2020-12-17 15:53 ` Jon Nettleton
2020-12-18 10:53 ` Jon Nettleton
2020-12-18 10:53 ` Jon Nettleton
2020-12-18 10:53 ` Jon Nettleton
2021-01-04 8:55 ` Shameerali Kolothum Thodi
2021-01-04 8:55 ` [Devel] " Shameerali Kolothum Thodi
2021-01-04 8:55 ` Shameerali Kolothum Thodi
2021-01-04 8:55 ` Shameerali Kolothum Thodi
2021-01-04 10:55 ` Jon Nettleton
2021-01-04 10:55 ` Jon Nettleton
2021-01-04 10:55 ` Jon Nettleton
2021-04-09 9:50 ` Auger Eric
2021-04-09 9:50 ` Auger Eric
2021-04-09 9:50 ` Auger Eric
2021-04-09 10:08 ` Shameerali Kolothum Thodi
2021-04-09 10:08 ` [Devel] " Shameerali Kolothum Thodi
2021-04-09 10:08 ` Shameerali Kolothum Thodi
2021-04-09 10:08 ` Shameerali Kolothum Thodi
2021-04-15 9:48 ` Auger Eric
2021-04-15 9:48 ` Auger Eric
2021-04-15 9:48 ` Auger Eric
2021-04-15 10:37 ` Shameerali Kolothum Thodi
2021-04-15 10:37 ` [Devel] " Shameerali Kolothum Thodi
2021-04-15 10:37 ` Shameerali Kolothum Thodi
2021-04-15 10:37 ` Shameerali Kolothum Thodi
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