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From: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
To: Jean-Philippe Brucker
	<jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
Cc: bharatku-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org,
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	will.deacon-5wv7dgnIgG8@public.gmane.org,
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	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH v2 07/40] iommu: Add a page fault handler
Date: Tue, 22 May 2018 16:35:21 -0700
Message-ID: <20180522163521.413e60c6@jacob-builder> (raw)
In-Reply-To: <8a640794-a6f3-fa01-82a9-06479a6f779a-5wv7dgnIgG8@public.gmane.org>

On Mon, 21 May 2018 15:49:40 +0100
Jean-Philippe Brucker <jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org> wrote:

> On 18/05/18 19:04, Jacob Pan wrote:
> >> +struct iopf_context {
> >> +	struct device			*dev;
> >> +	struct iommu_fault_event	evt;
> >> +	struct list_head		head;
> >> +};
> >> +
> >> +struct iopf_group {
> >> +	struct iopf_context		last_fault;
> >> +	struct list_head		faults;
> >> +	struct work_struct		work;
> >> +};
> >> +  
> > All the page requests in the group should belong to the same device,
> > perhaps struct device tracking should be in iopf_group instead of
> > iopf_context?  
> 
> Right, this is a leftover from when we kept a global list of partial
> faults. Since the list is now per-device, I can move the dev pointer
> (I think I should also rename iopf_context to iopf_fault, if that's
> all right)
> 
> >> +static int iopf_complete(struct device *dev, struct
> >> iommu_fault_event *evt,
> >> +			 enum page_response_code status)
> >> +{
> >> +	struct page_response_msg resp = {
> >> +		.addr			= evt->addr,
> >> +		.pasid			= evt->pasid,
> >> +		.pasid_present		= evt->pasid_valid,
> >> +		.page_req_group_id	=
> >> evt->page_req_group_id,
> >> +		.private_data		= evt->iommu_private,
> >> +		.resp_code		= status,
> >> +	};
> >> +
> >> +	return iommu_page_response(dev, &resp);
> >> +}
> >> +
> >> +static enum page_response_code
> >> +iopf_handle_single(struct iopf_context *fault)
> >> +{
> >> +	/* TODO */
> >> +	return -ENODEV;
> >> +}
> >> +
> >> +static void iopf_handle_group(struct work_struct *work)
> >> +{
> >> +	struct iopf_group *group;
> >> +	struct iopf_context *fault, *next;
> >> +	enum page_response_code status = IOMMU_PAGE_RESP_SUCCESS;
> >> +
> >> +	group = container_of(work, struct iopf_group, work);
> >> +
> >> +	list_for_each_entry_safe(fault, next, &group->faults,
> >> head) {
> >> +		struct iommu_fault_event *evt = &fault->evt;
> >> +		/*
> >> +		 * Errors are sticky: don't handle subsequent
> >> faults in the
> >> +		 * group if there is an error.
> >> +		 */  
> > There might be performance benefit for certain device to continue in
> > spite of error in that the ATS retry may have less fault. Perhaps a
> > policy decision for later enhancement.  
> 
> Yes I think we should leave it to future work. My current reasoning is
> that subsequent requests are more likely to fail as well and reporting
> the error is more urgent, but we need real workloads to confirm this.
> 
> >> +		if (status == IOMMU_PAGE_RESP_SUCCESS)
> >> +			status = iopf_handle_single(fault);
> >> +
> >> +		if (!evt->last_req)
> >> +			kfree(fault);
> >> +	}
> >> +
> >> +	iopf_complete(group->last_fault.dev,
> >> &group->last_fault.evt, status);
> >> +	kfree(group);
> >> +}
> >> +
> >> +/**
> >> + * iommu_queue_iopf - IO Page Fault handler
> >> + * @evt: fault event
> >> + * @cookie: struct device, passed to
> >> iommu_register_device_fault_handler.
> >> + *
> >> + * Add a fault to the device workqueue, to be handled by mm.
> >> + */
> >> +int iommu_queue_iopf(struct iommu_fault_event *evt, void *cookie)
> >> +{
> >> +	struct iopf_group *group;
> >> +	struct iopf_context *fault, *next;
> >> +	struct iopf_device_param *iopf_param;
> >> +
> >> +	struct device *dev = cookie;
> >> +	struct iommu_param *param = dev->iommu_param;
> >> +
> >> +	if (WARN_ON(!mutex_is_locked(&param->lock)))
> >> +		return -EINVAL;
> >> +
> >> +	if (evt->type != IOMMU_FAULT_PAGE_REQ)
> >> +		/* Not a recoverable page fault */
> >> +		return IOMMU_PAGE_RESP_CONTINUE;
> >> +
> >> +	/*
> >> +	 * As long as we're holding param->lock, the queue can't
> >> be unlinked
> >> +	 * from the device and therefore cannot disappear.
> >> +	 */
> >> +	iopf_param = param->iopf_param;
> >> +	if (!iopf_param)
> >> +		return -ENODEV;
> >> +
> >> +	if (!evt->last_req) {
> >> +		fault = kzalloc(sizeof(*fault), GFP_KERNEL);
> >> +		if (!fault)
> >> +			return -ENOMEM;
> >> +
> >> +		fault->evt = *evt;
> >> +		fault->dev = dev;
> >> +
> >> +		/* Non-last request of a group. Postpone until the
> >> last one */
> >> +		list_add(&fault->head, &iopf_param->partial);
> >> +
> >> +		return IOMMU_PAGE_RESP_HANDLED;
> >> +	}
> >> +
> >> +	group = kzalloc(sizeof(*group), GFP_KERNEL);
> >> +	if (!group)
> >> +		return -ENOMEM;
> >> +
> >> +	group->last_fault.evt = *evt;
> >> +	group->last_fault.dev = dev;
> >> +	INIT_LIST_HEAD(&group->faults);
> >> +	list_add(&group->last_fault.head, &group->faults);
> >> +	INIT_WORK(&group->work, iopf_handle_group);
> >> +
> >> +	/* See if we have partial faults for this group */
> >> +	list_for_each_entry_safe(fault, next,
> >> &iopf_param->partial, head) {
> >> +		if (fault->evt.page_req_group_id ==
> >> evt->page_req_group_id)  
> > If all 9 bit group index are used, there can be lots of PRGs. For
> > future enhancement, maybe we can have per group partial list ready
> > to go when LPIG comes in? I will be less searching.  
> 
> Yes, allocating the PRG from the start could be more efficient. I
> think it's slightly more complicated code so I'd rather see
> performance numbers before implementing it
> 
> >> +			/* Insert *before* the last fault */
> >> +			list_move(&fault->head, &group->faults);
> >> +	}
> >> +  
> > If you already sorted the group list with last fault at the end,
> > why do you need a separate entry to track the last fault?  
> 
> Not sure I understand your question, sorry. Do you mean why the
> iopf_group.last_fault? Just to avoid one more kzalloc.
> 
kind of :) what i thought was that why can't the last_fault naturally
be the last entry in your group fault list? then there is no need for
special treatment in terms of allocation of the last fault. just my
preference.
> >> +
> >> +	queue->flush(queue->flush_arg, dev);
> >> +
> >> +	/*
> >> +	 * No need to clear the partial list. All PRGs containing
> >> the PASID that
> >> +	 * needs to be decommissioned are whole (the device driver
> >> made sure of
> >> +	 * it before this function was called). They have been
> >> submitted to the
> >> +	 * queue by the above flush().
> >> +	 */  
> > So you are saying device driver need to make sure LPIG PRQ is
> > submitted in the flush call above such that partial list is
> > cleared?  
> 
> Not exactly, it's the IOMMU driver that makes sure all LPIG in its
> queues are submitted by the above flush call. In more details the
> flow is:
> 
> * Either device driver calls unbind()/sva_device_shutdown(), or the
> process exits.
> * If the device driver called, then it already told the device to stop
> using the PASID. Otherwise we use the mm_exit() callback to tell the
> device driver to stop using the PASID.
> * In either case, when receiving a stop request from the driver, the
> device sends the LPIGs to the IOMMU queue.
> * Then, the flush call above ensures that the IOMMU reports the LPIG
> with iommu_report_device_fault.
> * While submitting all LPIGs for this PASID to the work queue,
> ipof_queue_fault also picked up all partial faults, so the partial
> list is clean.
> 
> Maybe I should improve this comment?
> 
thanks for explaining. LPIG submission is done by device asynchronously
w.r.t. driver stopping/decommission PASID. so if we were to use this
flow on vt-d, which does not stall page request queue, then we should
use the iommu model specific flush() callback to ensure LPIG is
received? There could be queue full condition and retry. I am just
trying to understand how and where we can make sure LPIG is
received and all groups are whole.

> > what if
> > there are device failures where device needs to reset (either whole
> > function level or PASID level), should there still be a need to
> > clear the partial list for all associated PASID/group?  
> 
> I guess the simplest way out, when resetting the device, is for the
> device driver to call iommu_sva_device_shutdown(). Both the IOMMU
> driver's sva_device_shutdown() and remove_device() ops should call
> iopf_queue_remove_device(), which clears the partial list.
> 
yes. I think that should work for functional reset.
> Thanks,
> Jean

[Jacob Pan]

  parent reply index

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-11 19:06 [PATCH v2 00/40] Shared Virtual Addressing for the IOMMU Jean-Philippe Brucker
     [not found] ` <20180511190641.23008-1-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-11 19:06   ` [PATCH v2 01/40] iommu: Introduce Shared Virtual Addressing API Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-2-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-16 20:41       ` Jacob Pan
2018-05-17 10:02         ` Jean-Philippe Brucker
2018-05-17 17:00           ` Jacob Pan
2018-09-05 11:29       ` Auger Eric
     [not found]         ` <bf42affd-e9d0-e4fc-6d28-f3c3f7795348-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-09-06 11:09           ` Jean-Philippe Brucker
     [not found]             ` <03d31ba5-1eda-ea86-8c0c-91d14c86fe83-5wv7dgnIgG8@public.gmane.org>
2018-09-06 11:12               ` Christian König
     [not found]                 ` <ed39159c-087e-7e56-7d29-d1de9fa1677f-5C7GfCeVMHo@public.gmane.org>
2018-09-06 12:45                   ` Jean-Philippe Brucker
     [not found]                     ` <f0b317d5-e2e9-5478-952c-05e8b97bd68b-5wv7dgnIgG8@public.gmane.org>
2018-09-07  8:55                       ` Christian König
     [not found]                         ` <2fd4a0a1-1a35-bf82-df84-b995cce011d9-5C7GfCeVMHo@public.gmane.org>
2018-09-07 15:45                           ` Jean-Philippe Brucker
     [not found]                             ` <65e7accd-4446-19f5-c667-c6407e89cfa6-5wv7dgnIgG8@public.gmane.org>
2018-09-07 18:02                               ` Christian König
     [not found]                                 ` <5bbc0332-b94b-75cc-ca42-a9b196811daf-5C7GfCeVMHo@public.gmane.org>
2018-09-07 21:25                                   ` Jacob Pan
2018-09-08  7:29                                     ` Christian König
     [not found]                                       ` <3e3a6797-a233-911b-3a7d-d9b549160960-5C7GfCeVMHo@public.gmane.org>
2018-09-12 12:40                                         ` Jean-Philippe Brucker
     [not found]                                           ` <9445a0be-fb5b-d195-4fdf-7ad6cb36ef4f-5wv7dgnIgG8@public.gmane.org>
2018-09-12 12:56                                             ` Christian König
2018-09-13  7:15                                     ` Tian, Kevin
2018-09-13  7:26                           ` Tian, Kevin
2018-05-11 19:06   ` [PATCH v2 02/40] iommu/sva: Bind process address spaces to devices Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-3-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-17 13:10       ` Jonathan Cameron
     [not found]         ` <20180517141058.00001c76-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:43           ` Jean-Philippe Brucker
2018-09-05 11:29       ` Auger Eric
     [not found]         ` <471873d4-a1a6-1a3a-cf17-1e686b4ade96-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-09-06 11:09           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 03/40] iommu/sva: Manage process address spaces Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-4-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-16 23:31       ` Jacob Pan
2018-05-17 10:02         ` Jean-Philippe Brucker
     [not found]           ` <de478769-9f7a-d40b-a55e-e2c63ad883e8-5wv7dgnIgG8@public.gmane.org>
2018-05-22 16:43             ` Jacob Pan
2018-05-24 11:44               ` Jean-Philippe Brucker
2018-05-24 11:50                 ` Ilias Apalodimas
2018-05-24 15:04                   ` Jean-Philippe Brucker
     [not found]                     ` <19e82a74-429a-3f86-119e-32b12082d0ff-5wv7dgnIgG8@public.gmane.org>
2018-05-25  6:33                       ` Ilias Apalodimas
2018-05-25  8:39                         ` Jonathan Cameron
     [not found]                           ` <20180525093959.000040a7-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-26  2:24                             ` Kenneth Lee
2018-05-26  2:24                           ` Kenneth Lee
     [not found]                           ` <20180526022445.GA6069@kllp05>
2018-06-11 16:10                             ` Kenneth Lee
2018-06-11 16:10                             ` Kenneth Lee
2018-06-11 16:32                           ` Kenneth Lee
2018-05-17 14:25       ` Jonathan Cameron
     [not found]         ` <20180517150516.000067ca-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:44           ` Jean-Philippe Brucker
2018-09-05 12:14       ` Auger Eric
     [not found]         ` <d785ec89-6743-d0f1-1a7f-85599a033e5b-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-09-05 18:18           ` Jacob Pan
2018-09-06 17:40             ` Jean-Philippe Brucker
2018-09-06 11:10           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 04/40] iommu/sva: Add a mm_exit callback for device drivers Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-5-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-09-05 13:23       ` Auger Eric
     [not found]         ` <d1dc28c4-7742-9c41-3f91-3fbcb8b13c1c-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2018-09-06 11:10           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 05/40] iommu/sva: Track mm changes with an MMU notifier Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-6-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-17 14:25       ` Jonathan Cameron
     [not found]         ` <20180517152514.00004247-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:44           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 06/40] iommu/sva: Search mm by PASID Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 07/40] iommu: Add a page fault handler Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-8-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-17 15:25       ` Jonathan Cameron
     [not found]         ` <20180517162555.00002bd3-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:48           ` Jean-Philippe Brucker
2018-05-18 18:04       ` Jacob Pan
2018-05-21 14:49         ` Jean-Philippe Brucker
     [not found]           ` <8a640794-a6f3-fa01-82a9-06479a6f779a-5wv7dgnIgG8@public.gmane.org>
2018-05-22 23:35             ` Jacob Pan [this message]
2018-05-24 11:44               ` Jean-Philippe Brucker
     [not found]                 ` <bdf9f221-ab97-2168-d072-b7f6a0dba840-5wv7dgnIgG8@public.gmane.org>
2018-05-26  0:35                   ` Jacob Pan
2018-05-29 10:00                     ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 08/40] iommu/iopf: Handle mm faults Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 09/40] iommu/sva: Register page fault handler Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 10/40] mm: export symbol mm_access Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 11/40] mm: export symbol find_get_task_by_vpid Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 12/40] mm: export symbol mmput_async Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 13/40] vfio: Add support for Shared Virtual Addressing Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-14-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-17 15:58       ` Jonathan Cameron
     [not found]         ` <20180517165845.00000cc9-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:51           ` Jean-Philippe Brucker
2018-05-23  9:38       ` Xu Zaibo
     [not found]         ` <5B0536A3.1000304-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-24 11:44           ` Jean-Philippe Brucker
     [not found]             ` <cd13f60d-b282-3804-4ca7-2d34476c597f-5wv7dgnIgG8@public.gmane.org>
2018-05-24 12:35               ` Xu Zaibo
     [not found]                 ` <5B06B17C.1090809-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-24 15:04                   ` Jean-Philippe Brucker
     [not found]                     ` <205c1729-8026-3efe-c363-d37d7150d622-5wv7dgnIgG8@public.gmane.org>
2018-05-25  2:39                       ` Xu Zaibo
2018-05-25  9:47                         ` Jean-Philippe Brucker
     [not found]                           ` <fea420ff-e738-e2ed-ab1e-a3f4dde4b6ef-5wv7dgnIgG8@public.gmane.org>
2018-05-26  3:53                             ` Xu Zaibo
     [not found]                               ` <5B08DA21.3070507-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-29 11:55                                 ` Jean-Philippe Brucker
     [not found]                                   ` <99ff4f89-86ef-a251-894c-8aa8a47d2a69-5wv7dgnIgG8@public.gmane.org>
2018-05-29 12:24                                     ` Xu Zaibo
2018-08-27  8:06       ` Xu Zaibo
     [not found]         ` <5B83B11E.7010807-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-08-31 13:34           ` Jean-Philippe Brucker
     [not found]             ` <1d5b6529-4e5a-723c-3f1b-dd5a9adb490c-5wv7dgnIgG8@public.gmane.org>
2018-09-01  2:23               ` Xu Zaibo
     [not found]                 ` <5B89F818.7060300-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-09-03 10:34                   ` Jean-Philippe Brucker
     [not found]                     ` <3a961aff-e830-64bb-b6a9-14e08de1abf5-5wv7dgnIgG8@public.gmane.org>
2018-09-04  2:12                       ` Xu Zaibo
     [not found]                         ` <5B8DEA15.7020404-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-09-04 10:57                           ` Jean-Philippe Brucker
     [not found]                             ` <bc27f902-4d12-21b7-b9e9-18bcae170503-5wv7dgnIgG8@public.gmane.org>
2018-09-05  3:15                               ` Xu Zaibo
     [not found]                                 ` <5B8F4A59.20004-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-09-05 11:02                                   ` Jean-Philippe Brucker
     [not found]                                     ` <b51107b8-a525-13ce-f4c3-d423b8502c27-5wv7dgnIgG8@public.gmane.org>
2018-09-06  7:26                                       ` Xu Zaibo
2018-05-11 19:06   ` [PATCH v2 14/40] dt-bindings: document stall and PASID properties for IOMMU masters Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 15/40] iommu/of: Add stall and pasid properties to iommu_fwspec Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 16/40] arm64: mm: Pin down ASIDs for sharing mm with devices Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-17-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-15 14:16       ` Catalin Marinas
     [not found]         ` <20180515141658.vivrgcyww2pxumye-+1aNUgJU5qkijLcmloz0ER/iLCjYCKR+VpNB7YpNyf8@public.gmane.org>
2018-05-17 10:01           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 17/40] iommu/arm-smmu-v3: Link domains and devices Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-18-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-17 16:07       ` Jonathan Cameron
     [not found]         ` <20180517170748.00004927-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>
2018-05-21 14:49           ` Jean-Philippe Brucker
2018-09-10 15:16       ` Auger Eric
2018-05-11 19:06   ` [PATCH v2 18/40] iommu/io-pgtable-arm: Factor out ARM LPAE register defines Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 19/40] iommu: Add generic PASID table library Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 20/40] iommu/arm-smmu-v3: Move context descriptor code Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 21/40] iommu/arm-smmu-v3: Add support for Substream IDs Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-22-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-31 11:01       ` Bharat Kumar Gogada
     [not found]         ` <BLUPR0201MB1505AA55707BE2E13392FFAFA5630-hRBPhS1iNj/g9tdZWAsUFxrHTHEw16jenBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2018-06-01 10:46           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 22/40] iommu/arm-smmu-v3: Add second level of context descriptor table Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 23/40] iommu/arm-smmu-v3: Share process page tables Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 24/40] iommu/arm-smmu-v3: Seize private ASID Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 25/40] iommu/arm-smmu-v3: Add support for VHE Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 26/40] iommu/arm-smmu-v3: Enable broadcast TLB maintenance Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 27/40] iommu/arm-smmu-v3: Add SVA feature checking Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 28/40] iommu/arm-smmu-v3: Implement mm operations Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 29/40] iommu/arm-smmu-v3: Add support for Hardware Translation Table Update Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 30/40] iommu/arm-smmu-v3: Register I/O Page Fault queue Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 31/40] iommu/arm-smmu-v3: Improve add_device error handling Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 32/40] iommu/arm-smmu-v3: Maintain a SID->device structure Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 33/40] iommu/arm-smmu-v3: Add stall support for platform devices Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 34/40] ACPI/IORT: Check ATS capability in root complex nodes Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 35/40] iommu/arm-smmu-v3: Add support for PCI ATS Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-36-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-19 17:25       ` Sinan Kaya
     [not found]         ` <922474e8-0aa5-e022-0502-f1e51b0d4859-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-05-21 14:52           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 36/40] iommu/arm-smmu-v3: Hook up ATC invalidation to mm ops Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 37/40] iommu/arm-smmu-v3: Disable tagged pointers Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 38/40] PCI: Make "PRG Response PASID Required" handling common Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 39/40] iommu/arm-smmu-v3: Add support for PRI Jean-Philippe Brucker
     [not found]     ` <20180511190641.23008-40-jean-philippe.brucker-5wv7dgnIgG8@public.gmane.org>
2018-05-25 14:08       ` Bharat Kumar Gogada
     [not found]         ` <BLUPR0201MB150513BBAA161355DE9B3A48A5690-hRBPhS1iNj/g9tdZWAsUFxrHTHEw16jenBOFsp37pqbUKgpGm//BTAC/G2K4zDHf@public.gmane.org>
2018-05-29 10:27           ` Jean-Philippe Brucker
2018-05-11 19:06   ` [PATCH v2 40/40] iommu/arm-smmu-v3: Add support for PCI PASID Jean-Philippe Brucker

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