| Message ID | 20240208082307.15759-8-yi.l.liu@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add missing cache flush and dirty tracking set for nested parent domain | expand |
> From: Liu, Yi L <yi.l.liu@intel.com> > Sent: Thursday, February 8, 2024 4:23 PM > > Add device_set_dirty_tracking() to loop all the devices and set the dirty > tracking per the @enable parameter. > > Signed-off-by: Yi Liu <yi.l.liu@intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
On 08/02/2024 08:23, Yi Liu wrote: > Add device_set_dirty_tracking() to loop all the devices and set the dirty > tracking per the @enable parameter. > > Signed-off-by: Yi Liu <yi.l.liu@intel.com> Nice cleanup, Reviewed-by: Joao Martins <joao.m.martins@oracle.com> > --- > drivers/iommu/intel/iommu.c | 32 +++++++++++++++++++++----------- > 1 file changed, 21 insertions(+), 11 deletions(-) > > diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c > index dae20991e036..7636d3f03905 100644 > --- a/drivers/iommu/intel/iommu.c > +++ b/drivers/iommu/intel/iommu.c > @@ -4730,23 +4730,35 @@ static void *intel_iommu_hw_info(struct device *dev, u32 *length, u32 *type) > return vtd; > } > > +static int > +device_set_dirty_tracking(struct list_head *devices, bool enable) > +{ > + struct device_domain_info *info; > + int ret = 0; > + > + list_for_each_entry(info, devices, link) { > + ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev, > + IOMMU_NO_PASID, enable); > + if (ret) > + break; > + } > + > + return ret; > +} > + > static int intel_iommu_set_dirty_tracking(struct iommu_domain *domain, > bool enable) > { > struct dmar_domain *dmar_domain = to_dmar_domain(domain); > - struct device_domain_info *info; > int ret; > > spin_lock(&dmar_domain->lock); > if (dmar_domain->dirty_tracking == enable) > goto out_unlock; > > - list_for_each_entry(info, &dmar_domain->devices, link) { > - ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev, > - IOMMU_NO_PASID, enable); > - if (ret) > - goto err_unwind; > - } > + ret = device_set_dirty_tracking(&dmar_domain->devices, enable); > + if (ret) > + goto err_unwind; > > dmar_domain->dirty_tracking = enable; > out_unlock: > @@ -4755,10 +4767,8 @@ static int intel_iommu_set_dirty_tracking(struct iommu_domain *domain, > return 0; > > err_unwind: > - list_for_each_entry(info, &dmar_domain->devices, link) > - intel_pasid_setup_dirty_tracking(info->iommu, info->dev, > - IOMMU_NO_PASID, > - dmar_domain->dirty_tracking); > + device_set_dirty_tracking(&dmar_domain->devices, > + dmar_domain->dirty_tracking); > spin_unlock(&dmar_domain->lock); > return ret; > }
On 2024/2/8 16:23, Yi Liu wrote: > --- a/drivers/iommu/intel/iommu.c > +++ b/drivers/iommu/intel/iommu.c > @@ -4730,23 +4730,35 @@ static void *intel_iommu_hw_info(struct device *dev, u32 *length, u32 *type) > return vtd; > } > > +static int > +device_set_dirty_tracking(struct list_head *devices, bool enable) > +{ > + struct device_domain_info *info; > + int ret = 0; > + > + list_for_each_entry(info, devices, link) { > + ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev, > + IOMMU_NO_PASID, enable); > + if (ret) > + break; > + } > + > + return ret; > +} Let's make this helper specific. Something like below. /* * Set dirty tracking for the device list of a domain. The caller must * hold the domain->lock when calling it. */ static int device_list_set_dirty_tracking(...) Best regards, baolu
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index dae20991e036..7636d3f03905 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -4730,23 +4730,35 @@ static void *intel_iommu_hw_info(struct device *dev, u32 *length, u32 *type) return vtd; } +static int +device_set_dirty_tracking(struct list_head *devices, bool enable) +{ + struct device_domain_info *info; + int ret = 0; + + list_for_each_entry(info, devices, link) { + ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev, + IOMMU_NO_PASID, enable); + if (ret) + break; + } + + return ret; +} + static int intel_iommu_set_dirty_tracking(struct iommu_domain *domain, bool enable) { struct dmar_domain *dmar_domain = to_dmar_domain(domain); - struct device_domain_info *info; int ret; spin_lock(&dmar_domain->lock); if (dmar_domain->dirty_tracking == enable) goto out_unlock; - list_for_each_entry(info, &dmar_domain->devices, link) { - ret = intel_pasid_setup_dirty_tracking(info->iommu, info->dev, - IOMMU_NO_PASID, enable); - if (ret) - goto err_unwind; - } + ret = device_set_dirty_tracking(&dmar_domain->devices, enable); + if (ret) + goto err_unwind; dmar_domain->dirty_tracking = enable; out_unlock: @@ -4755,10 +4767,8 @@ static int intel_iommu_set_dirty_tracking(struct iommu_domain *domain, return 0; err_unwind: - list_for_each_entry(info, &dmar_domain->devices, link) - intel_pasid_setup_dirty_tracking(info->iommu, info->dev, - IOMMU_NO_PASID, - dmar_domain->dirty_tracking); + device_set_dirty_tracking(&dmar_domain->devices, + dmar_domain->dirty_tracking); spin_unlock(&dmar_domain->lock); return ret; }
Add device_set_dirty_tracking() to loop all the devices and set the dirty tracking per the @enable parameter. Signed-off-by: Yi Liu <yi.l.liu@intel.com> --- drivers/iommu/intel/iommu.c | 32 +++++++++++++++++++++----------- 1 file changed, 21 insertions(+), 11 deletions(-)