Displaying 20 results from an estimated 26 matches for "flush_iotlb_all".
2023 Sep 04
1
[PATCH 2/2] iommu/virtio: Add ops->flush_iotlb_all and enable deferred flush
On Fri, Aug 25, 2023 at 05:21:26PM +0200, Niklas Schnelle wrote:
> Add ops->flush_iotlb_all operation to enable virtio-iommu for the
> dma-iommu deferred flush scheme. This results inn a significant increase
in
> in performance in exchange for a window in which devices can still
> access previously IOMMU mapped memory. To get back to the prior behavior
> iommu.strict=1 may b...
2023 Sep 06
1
[PATCH 2/2] iommu/virtio: Add ops->flush_iotlb_all and enable deferred flush
On Wed, Sep 06, 2023 at 09:55:49AM +0200, Niklas Schnelle wrote:
> On Mon, 2023-09-04 at 17:33 +0100, Robin Murphy wrote:
> > On 2023-09-04 16:34, Jean-Philippe Brucker wrote:
> > > On Fri, Aug 25, 2023 at 05:21:26PM +0200, Niklas Schnelle wrote:
> > > > Add ops->flush_iotlb_all operation to enable virtio-iommu for the
> > > > dma-iommu deferred flush scheme. This results inn a significant increase
> > >
> > > in
> > >
> > > > in performance in exchange for a window in which devices can still
> > > > access p...
2023 Sep 06
1
[PATCH 2/2] iommu/virtio: Add ops->flush_iotlb_all and enable deferred flush
On Wed, Sep 06, 2023 at 09:55:49AM +0200, Niklas Schnelle wrote:
> On Mon, 2023-09-04 at 17:33 +0100, Robin Murphy wrote:
> > On 2023-09-04 16:34, Jean-Philippe Brucker wrote:
> > > On Fri, Aug 25, 2023 at 05:21:26PM +0200, Niklas Schnelle wrote:
> > > > Add ops->flush_iotlb_all operation to enable virtio-iommu for the
> > > > dma-iommu deferred flush scheme. This results inn a significant increase
> > >
> > > in
> > >
> > > > in performance in exchange for a window in which devices can still
> > > > access p...
2019 Dec 21
0
[PATCH 4/8] iommu: Handle freelists when using deferred flushing in iommu drivers
...ruct iommu_domain *dom, unsigned long iova,
size_t page_size,
- struct iommu_iotlb_gather *gather)
+ struct iommu_iotlb_gather *gather,
+ struct page **freelist)
{
struct protection_domain *domain = to_pdomain(dom);
@@ -2668,6 +2669,16 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain)
spin_unlock_irqrestore(&dom->lock, flags);
}
+static void amd_iommu_flush_iotlb_range(struct iommu_domain *domain,
+ unsigned long iova, size_t size,
+ struct page *freelist)
+{
+ struct protection_domain *dom = to_pdomain(domain);
+
+ domain_flush_p...
2020 Aug 18
3
[PATCH V2 1/2] Add new flush_iotlb_range and handle freelists when using iommu_unmap_fast
...d long iova,
size_t page_size,
- struct iommu_iotlb_gather *gather)
+ struct iommu_iotlb_gather *gather,
+ struct page **freelist)
{
struct protection_domain *domain = to_pdomain(dom);
struct domain_pgtable pgtable;
@@ -2636,6 +2637,16 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain)
spin_unlock_irqrestore(&dom->lock, flags);
}
+static void amd_iommu_flush_iotlb_range(struct iommu_domain *domain,
+ unsigned long iova, size_t size,
+ struct page *freelist)
+{
+ struct protection_domain *dom = to_pdomain(domain);
+
+ domain_flush_p...
2020 Aug 18
3
[PATCH V2 1/2] Add new flush_iotlb_range and handle freelists when using iommu_unmap_fast
...d long iova,
size_t page_size,
- struct iommu_iotlb_gather *gather)
+ struct iommu_iotlb_gather *gather,
+ struct page **freelist)
{
struct protection_domain *domain = to_pdomain(dom);
struct domain_pgtable pgtable;
@@ -2636,6 +2637,16 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain)
spin_unlock_irqrestore(&dom->lock, flags);
}
+static void amd_iommu_flush_iotlb_range(struct iommu_domain *domain,
+ unsigned long iova, size_t size,
+ struct page *freelist)
+{
+ struct protection_domain *dom = to_pdomain(domain);
+
+ domain_flush_p...
2020 Apr 14
0
[PATCH v2 17/33] iommu/arm-smmu: Convert to probe/release_device() call-backs
...u_priv_get(dev);
smmu = master->smmu;
arm_smmu_detach_dev(master);
- iommu_group_remove_device(dev);
- iommu_device_unlink(&smmu->iommu, dev);
arm_smmu_disable_pasid(master);
kfree(master);
iommu_fwspec_free(dev);
@@ -3138,8 +3120,8 @@ static struct iommu_ops arm_smmu_ops = {
.flush_iotlb_all = arm_smmu_flush_iotlb_all,
.iotlb_sync = arm_smmu_iotlb_sync,
.iova_to_phys = arm_smmu_iova_to_phys,
- .add_device = arm_smmu_add_device,
- .remove_device = arm_smmu_remove_device,
+ .probe_device = arm_smmu_probe_device,
+ .release_device = arm_smmu_release_device,
.device_group = ar...
2020 Aug 17
1
[PATCH 1/2] Add new flush_iotlb_range and handle freelists when using iommu_unmap_fast
...d long iova,
size_t page_size,
- struct iommu_iotlb_gather *gather)
+ struct iommu_iotlb_gather *gather,
+ struct page **freelist)
{
struct protection_domain *domain = to_pdomain(dom);
struct domain_pgtable pgtable;
@@ -2636,6 +2637,16 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain)
spin_unlock_irqrestore(&dom->lock, flags);
}
+static void amd_iommu_flush_iotlb_range(struct iommu_domain *domain,
+ unsigned long iova, size_t size,
+ struct page *freelist)
+{
+ struct protection_domain *dom = to_pdomain(domain);
+
+ domain_flush_p...
2020 Aug 18
0
[PATCH V2 1/2] Add new flush_iotlb_range and handle freelists when using iommu_unmap_fast
...e,
> - struct iommu_iotlb_gather *gather)
> + struct iommu_iotlb_gather *gather,
> + struct page **freelist)
> {
> struct protection_domain *domain = to_pdomain(dom);
> struct domain_pgtable pgtable;
> @@ -2636,6 +2637,16 @@ static void amd_iommu_flush_iotlb_all(struct iommu_domain *domain)
> spin_unlock_irqrestore(&dom->lock, flags);
> }
>
> +static void amd_iommu_flush_iotlb_range(struct iommu_domain *domain,
> + unsigned long iova, size_t size,
> + struct page *freelist)
> +{
> + struct protection_domain *d...
2020 Apr 08
1
[RFC PATCH 17/34] iommu/arm-smmu: Store device instead of group in arm_smmu_s2cr
On 2020-04-08 3:37 pm, Joerg Roedel wrote:
> Hi Robin,
>
> thanks for looking into this.
>
> On Wed, Apr 08, 2020 at 01:09:40PM +0100, Robin Murphy wrote:
>> For a hot-pluggable bus where logical devices may share Stream IDs (like
>> fsl-mc), this could happen:
>>
>> create device A
>> iommu_probe_device(A)
>> iommu_device_group(A)
2020 Apr 14
0
[PATCH v2 22/33] iommu/mediatek: Convert to probe/release_device() call-backs
...a *data;
if (!fwspec || fwspec->ops != &mtk_iommu_ops)
return;
- data = dev_iommu_priv_get(dev);
- iommu_device_unlink(&data->iommu, dev);
-
- iommu_group_remove_device(dev);
iommu_fwspec_free(dev);
}
@@ -526,8 +514,8 @@ static const struct iommu_ops mtk_iommu_ops = {
.flush_iotlb_all = mtk_iommu_flush_iotlb_all,
.iotlb_sync = mtk_iommu_iotlb_sync,
.iova_to_phys = mtk_iommu_iova_to_phys,
- .add_device = mtk_iommu_add_device,
- .remove_device = mtk_iommu_remove_device,
+ .probe_device = mtk_iommu_probe_device,
+ .release_device = mtk_iommu_release_device,
.device_group = mt...
2020 Apr 14
0
[PATCH v2 24/33] iommu/qcom: Convert to probe/release_device() call-backs
...ruct device *dev)
{
struct qcom_iommu_dev *qcom_iommu = to_iommu(dev);
if (!qcom_iommu)
return;
- iommu_device_unlink(&qcom_iommu->iommu, dev);
- iommu_group_remove_device(dev);
iommu_fwspec_free(dev);
}
@@ -619,8 +609,8 @@ static const struct iommu_ops qcom_iommu_ops = {
.flush_iotlb_all = qcom_iommu_flush_iotlb_all,
.iotlb_sync = qcom_iommu_iotlb_sync,
.iova_to_phys = qcom_iommu_iova_to_phys,
- .add_device = qcom_iommu_add_device,
- .remove_device = qcom_iommu_remove_device,
+ .probe_device = qcom_iommu_probe_device,
+ .release_device = qcom_iommu_release_device,
.device_gro...
2020 Apr 14
0
[PATCH v2 03/33] iommu/amd: Implement iommu_ops->def_domain_type call-back
...file changed, 15 insertions(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 20cce366e951..73b4f84cf449 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2661,6 +2661,20 @@ static void amd_iommu_iotlb_sync(struct iommu_domain *domain,
amd_iommu_flush_iotlb_all(domain);
}
+static int amd_iommu_def_domain_type(struct device *dev)
+{
+ struct iommu_dev_data *dev_data;
+
+ dev_data = get_dev_data(dev);
+ if (!dev_data)
+ return 0;
+
+ if (dev_data->iommu_v2)
+ return IOMMU_DOMAIN_IDENTITY;
+
+ return 0;
+}
+
const struct iommu_ops amd_iommu_ops = {...
2019 Dec 21
13
[PATCH 0/8] Convert the intel iommu driver to the dma-iommu api
This patchset converts the intel iommu driver to the dma-iommu api.
While converting the driver I exposed a bug in the intel i915 driver which causes a huge amount of artifacts on the screen of my laptop. You can see a picture of it here:
https://github.com/pippy360/kernelPatches/blob/master/IMG_20191219_225922.jpg
This issue is most likely in the i915 driver and is most likely caused by the
2019 Dec 21
13
[PATCH 0/8] Convert the intel iommu driver to the dma-iommu api
This patchset converts the intel iommu driver to the dma-iommu api.
While converting the driver I exposed a bug in the intel i915 driver which causes a huge amount of artifacts on the screen of my laptop. You can see a picture of it here:
https://github.com/pippy360/kernelPatches/blob/master/IMG_20191219_225922.jpg
This issue is most likely in the i915 driver and is most likely caused by the
2019 Dec 21
0
[PATCH 6/8] iommu: allow the dma-iommu api to use bounce buffers
...bounce_buffer(struct device *dev);
extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
extern int iommu_request_dm_for_dev(struct device *dev);
@@ -530,7 +532,7 @@ static inline void iommu_flush_iotlb_all(struct iommu_domain *domain)
domain->ops->flush_iotlb_all(domain);
}
-static inline void flush_iotlb_range(struct iommu_domain *domain,
+static inline void iommu_flush_iotlb_range(struct iommu_domain *domain,
unsigned long iova, size_t size,
struct page *freelist)
{
@@ -764,6 +...
2020 Apr 14
35
[PATCH v2 00/33] iommu: Move iommu_group setup to IOMMU core code
Hi,
here is the second version of this patch-set. The first version with
some more introductory text can be found here:
https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/
Changes v1->v2:
* Rebased to v5.7-rc1
* Re-wrote the arm-smmu changes as suggested by Robin Murphy
* Re-worked the Exynos patches to hopefully not break the
driver anymore
* Fixed a missing
2020 Apr 14
35
[PATCH v2 00/33] iommu: Move iommu_group setup to IOMMU core code
Hi,
here is the second version of this patch-set. The first version with
some more introductory text can be found here:
https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/
Changes v1->v2:
* Rebased to v5.7-rc1
* Re-wrote the arm-smmu changes as suggested by Robin Murphy
* Re-worked the Exynos patches to hopefully not break the
driver anymore
* Fixed a missing
2020 Apr 29
35
[PATCH v3 00/34] iommu: Move iommu_group setup to IOMMU core code
Hi,
here is the third version of this patch-set. Older versions can be found
here:
v1: https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/
(Has some more introductory text)
v2: https://lore.kernel.org/lkml/20200414131542.25608-1-joro at 8bytes.org/
Changes v2 -> v3:
* Rebased v5.7-rc3
* Added a missing iommu_group_put() as reported by Lu Baolu.
* Added a
2019 Dec 09
8
[PATCH v2 0/5] iommu: Implement iommu_put_resv_regions_simple()
From: Thierry Reding <treding at nvidia.com>
Most IOMMU drivers only need to free the memory allocated for each
reserved region. Instead of open-coding the loop to do this in each
driver, extract the code into a common function that can be used by
all these drivers.
Changes in v2:
- change subject prefix to "iommu: virtio: " for virtio-iommu.c driver
Thierry
Thierry Reding (5):