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From: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
To: dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	linux-pci@vger.kernel.org, ckoenig.leichtzumerken@gmail.com,
	daniel.vetter@ffwll.ch, Harry.Wentland@amd.com
Cc: gregkh@linuxfoundation.org, Felix.Kuehling@amd.com,
	helgaas@kernel.org, Alexander.Deucher@amd.com
Subject: [PATCH v5 06/27] drm/amdgpu: Handle IOMMU enabled case.
Date: Wed, 28 Apr 2021 11:11:46 -0400	[thread overview]
Message-ID: <20210428151207.1212258-7-andrey.grodzovsky@amd.com> (raw)
In-Reply-To: <20210428151207.1212258-1-andrey.grodzovsky@amd.com>

Handle all DMA IOMMU gropup related dependencies before the
group is removed.

v5: Drop IOMMU notifier and switch to lockless call to ttm_tt_unpopulate

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h        |  2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 31 ++++++++++++++++++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c   |  3 +--
 drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h   |  1 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c    |  9 +++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 13 ++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_object.h |  2 ++
 drivers/gpu/drm/amd/amdgpu/cik_ih.c        |  1 -
 drivers/gpu/drm/amd/amdgpu/cz_ih.c         |  1 -
 drivers/gpu/drm/amd/amdgpu/iceland_ih.c    |  1 -
 drivers/gpu/drm/amd/amdgpu/navi10_ih.c     |  3 ---
 drivers/gpu/drm/amd/amdgpu/si_ih.c         |  1 -
 drivers/gpu/drm/amd/amdgpu/tonga_ih.c      |  1 -
 drivers/gpu/drm/amd/amdgpu/vega10_ih.c     |  3 ---
 14 files changed, 56 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index fddb82897e5d..30a24db5f4d1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1054,6 +1054,8 @@ struct amdgpu_device {
 
 	bool                            in_pci_err_recovery;
 	struct pci_saved_state          *pci_state;
+
+	struct list_head                device_bo_list;
 };
 
 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 46d646c40338..91594ddc2459 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -70,6 +70,7 @@
 #include <drm/task_barrier.h>
 #include <linux/pm_runtime.h>
 
+
 MODULE_FIRMWARE("amdgpu/vega10_gpu_info.bin");
 MODULE_FIRMWARE("amdgpu/vega12_gpu_info.bin");
 MODULE_FIRMWARE("amdgpu/raven_gpu_info.bin");
@@ -3211,7 +3212,6 @@ static const struct attribute *amdgpu_dev_attributes[] = {
 	NULL
 };
 
-
 /**
  * amdgpu_device_init - initialize the driver
  *
@@ -3316,6 +3316,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 
 	INIT_WORK(&adev->xgmi_reset_work, amdgpu_device_xgmi_reset_func);
 
+	INIT_LIST_HEAD(&adev->device_bo_list);
+
 	adev->gfx.gfx_off_req_count = 1;
 	adev->pm.ac_power = power_supply_is_system_supplied() > 0;
 
@@ -3601,6 +3603,28 @@ int amdgpu_device_init(struct amdgpu_device *adev,
 	return r;
 }
 
+static void amdgpu_clear_dma_mappings(struct amdgpu_device *adev)
+{
+	struct amdgpu_bo *bo = NULL;
+
+	/*
+	 * Unmaps all DMA mappings before device will be removed from it's
+	 * IOMMU group otherwise in case of IOMMU enabled system a crash
+	 * will happen.
+	 */
+
+	spin_lock(&adev->mman.bdev.lru_lock);
+	while (!list_empty(&adev->device_bo_list)) {
+		bo = list_first_entry(&adev->device_bo_list, struct amdgpu_bo, bo);
+		list_del_init(&bo->bo);
+		spin_unlock(&adev->mman.bdev.lru_lock);
+		if (bo->tbo.ttm)
+			ttm_tt_unpopulate(bo->tbo.bdev, bo->tbo.ttm);
+		spin_lock(&adev->mman.bdev.lru_lock);
+	}
+	spin_unlock(&adev->mman.bdev.lru_lock);
+}
+
 /**
  * amdgpu_device_fini - tear down the driver
  *
@@ -3639,12 +3663,15 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev)
 		amdgpu_ucode_sysfs_fini(adev);
 	sysfs_remove_files(&adev->dev->kobj, amdgpu_dev_attributes);
 
-
 	amdgpu_fbdev_fini(adev);
 
 	amdgpu_irq_fini_hw(adev);
 
 	amdgpu_device_ip_fini_early(adev);
+
+	amdgpu_clear_dma_mappings(adev);
+
+	amdgpu_gart_dummy_page_fini(adev);
 }
 
 void amdgpu_device_fini_sw(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index fde2d899b2c4..49cdcaf8512d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -92,7 +92,7 @@ static int amdgpu_gart_dummy_page_init(struct amdgpu_device *adev)
  *
  * Frees the dummy page used by the driver (all asics).
  */
-static void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev)
+void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev)
 {
 	if (!adev->dummy_page_addr)
 		return;
@@ -397,5 +397,4 @@ void amdgpu_gart_fini(struct amdgpu_device *adev)
 	vfree(adev->gart.pages);
 	adev->gart.pages = NULL;
 #endif
-	amdgpu_gart_dummy_page_fini(adev);
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
index afa2e2877d87..5678d9c105ab 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
@@ -61,6 +61,7 @@ int amdgpu_gart_table_vram_pin(struct amdgpu_device *adev);
 void amdgpu_gart_table_vram_unpin(struct amdgpu_device *adev);
 int amdgpu_gart_init(struct amdgpu_device *adev);
 void amdgpu_gart_fini(struct amdgpu_device *adev);
+void amdgpu_gart_dummy_page_fini(struct amdgpu_device *adev);
 int amdgpu_gart_unbind(struct amdgpu_device *adev, uint64_t offset,
 		       int pages);
 int amdgpu_gart_map(struct amdgpu_device *adev, uint64_t offset,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 63e815c27585..a922154953a7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -326,6 +326,15 @@ void amdgpu_irq_fini_hw(struct amdgpu_device *adev)
 		if (!amdgpu_device_has_dc_support(adev))
 			flush_work(&adev->hotplug_work);
 	}
+
+	if (adev->irq.ih_soft.ring)
+		amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
+	if (adev->irq.ih.ring)
+		amdgpu_ih_ring_fini(adev, &adev->irq.ih);
+	if (adev->irq.ih1.ring)
+		amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
+	if (adev->irq.ih2.ring)
+		amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
 }
 
 /**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 485f249d063a..62d829f5e62c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -68,8 +68,13 @@ static void amdgpu_bo_destroy(struct ttm_buffer_object *tbo)
 		list_del_init(&bo->shadow_list);
 		mutex_unlock(&adev->shadow_list_lock);
 	}
-	amdgpu_bo_unref(&bo->parent);
 
+
+	spin_lock(&adev->mman.bdev.lru_lock);
+	list_del(&bo->bo);
+	spin_unlock(&adev->mman.bdev.lru_lock);
+
+	amdgpu_bo_unref(&bo->parent);
 	kfree(bo->metadata);
 	kfree(bo);
 }
@@ -585,6 +590,12 @@ static int amdgpu_bo_do_create(struct amdgpu_device *adev,
 	if (bp->type == ttm_bo_type_device)
 		bo->flags &= ~AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED;
 
+	INIT_LIST_HEAD(&bo->bo);
+
+	spin_lock(&adev->mman.bdev.lru_lock);
+	list_add_tail(&bo->bo, &adev->device_bo_list);
+	spin_unlock(&adev->mman.bdev.lru_lock);
+
 	return 0;
 
 fail_unreserve:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index 9ac37569823f..5ae8555ef275 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -110,6 +110,8 @@ struct amdgpu_bo {
 	struct list_head		shadow_list;
 
 	struct kgd_mem                  *kfd_bo;
+
+	struct list_head		bo;
 };
 
 static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_ih.c b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
index 183d44a6583c..df385ffc9768 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
@@ -310,7 +310,6 @@ static int cik_ih_sw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_irq_fini_sw(adev);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 	amdgpu_irq_remove_domain(adev);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_ih.c b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
index d32743949003..b8c47e0cf37a 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
@@ -302,7 +302,6 @@ static int cz_ih_sw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_irq_fini_sw(adev);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 	amdgpu_irq_remove_domain(adev);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
index da96c6013477..ddfe4eaeea05 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
@@ -301,7 +301,6 @@ static int iceland_ih_sw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_irq_fini_sw(adev);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 	amdgpu_irq_remove_domain(adev);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
index 5eea4550b856..e171a9e78544 100644
--- a/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/navi10_ih.c
@@ -571,9 +571,6 @@ static int navi10_ih_sw_fini(void *handle)
 
 	amdgpu_irq_fini_sw(adev);
 	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/si_ih.c b/drivers/gpu/drm/amd/amdgpu/si_ih.c
index 751307f3252c..9a24f17a5750 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_ih.c
@@ -176,7 +176,6 @@ static int si_ih_sw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_irq_fini_sw(adev);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
index 973d80ec7f6c..b08905d1c00f 100644
--- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
@@ -313,7 +313,6 @@ static int tonga_ih_sw_fini(void *handle)
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
 	amdgpu_irq_fini_sw(adev);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 	amdgpu_irq_remove_domain(adev);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index 2d0094c276ca..8c8abc00f710 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -525,9 +525,6 @@ static int vega10_ih_sw_fini(void *handle)
 
 	amdgpu_irq_fini_sw(adev);
 	amdgpu_ih_ring_fini(adev, &adev->irq.ih_soft);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih2);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih1);
-	amdgpu_ih_ring_fini(adev, &adev->irq.ih);
 
 	return 0;
 }
-- 
2.25.1

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  parent reply	other threads:[~2021-04-28 15:13 UTC|newest]

Thread overview: 82+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-28 15:11 [PATCH v5 00/27] RFC Support hot device unplug in amdgpu Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 01/27] drm/ttm: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 02/27] drm/ttm: Expose ttm_tt_unpopulate for driver use Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 03/27] drm/amdgpu: Split amdgpu_device_fini into early and late Andrey Grodzovsky
2021-04-29  7:04   ` Christian König
2021-04-30  3:10     ` Alex Deucher
2021-04-30  5:19   ` Lazar, Lijo
2021-04-30  5:39     ` Andrey Grodzovsky
2021-04-30  5:49       ` Lazar, Lijo
2021-04-28 15:11 ` [PATCH v5 04/27] drm/amdkfd: Split kfd suspend from devie exit Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 05/27] drm/amdgpu: Add early fini callback Andrey Grodzovsky
2021-04-28 15:11 ` Andrey Grodzovsky [this message]
2021-04-29  7:08   ` [PATCH v5 06/27] drm/amdgpu: Handle IOMMU enabled case Christian König
2021-05-03 20:43     ` Andrey Grodzovsky
2021-05-04  7:03       ` Christian König
2021-05-04 15:43         ` Andrey Grodzovsky
2021-05-05 14:51           ` Andrey Grodzovsky
2021-04-30  3:13   ` Alex Deucher
2021-05-03 18:00     ` Andrey Grodzovsky
2021-05-04 17:05   ` Felix Kuehling
2021-05-05 14:05     ` Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 07/27] drm/amdgpu: Remap all page faults to per process dummy page Andrey Grodzovsky
2021-04-29  7:09   ` Christian König
2021-04-28 15:11 ` [PATCH v5 08/27] PCI: add support for dev_groups to struct pci_device_driver Andrey Grodzovsky
2021-04-28 16:53   ` Bjorn Helgaas
2021-04-29 16:53     ` Andrey Grodzovsky
2021-04-29 19:23       ` Bjorn Helgaas
2021-04-29 20:36         ` Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 09/27] dmr/amdgpu: Move some sysfs attrs creation to default_attr Andrey Grodzovsky
2021-04-28 17:23   ` Bjorn Helgaas
2021-04-29  7:11   ` Christian König
2021-04-28 15:11 ` [PATCH v5 10/27] drm/amdgpu: Guard against write accesses after device removal Andrey Grodzovsky
2021-04-29  7:14   ` Christian König
2021-04-28 15:11 ` [PATCH v5 11/27] drm/sched: Make timeout timer rearm conditional Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 12/27] drm/amdgpu: Prevent any job recoveries after device is unplugged Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 13/27] drm/amdgpu: When filizing the fence driver. stop scheduler first Andrey Grodzovsky
2021-04-29  7:15   ` Christian König
2021-04-29 17:12     ` Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 14/27] drm/amdgpu: Fix hang on device removal Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 15/27] drm/scheduler: Fix hang when sched_entity released Andrey Grodzovsky
2021-04-29  7:18   ` Christian König
2021-04-29 17:06     ` Andrey Grodzovsky
2021-04-30  6:47       ` Christian König
2021-04-30 16:10         ` Andrey Grodzovsky
2021-05-05 13:57           ` Andrey Grodzovsky
2021-05-07 16:29           ` Daniel Vetter
2021-05-07 16:32             ` Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 16/27] drm/amdgpu: Unmap all MMIO mappings Andrey Grodzovsky
2021-04-29  7:19   ` Christian König
2021-04-29 16:55     ` Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 17/27] drm/amdgpu: Add rw_sem to pushing job into sched queue Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 18/27] drm/sched: Expose drm_sched_entity_kill_jobs Andrey Grodzovsky
2021-04-28 15:11 ` [PATCH v5 19/27] drm/amdgpu: Finilise device fences on device remove Andrey Grodzovsky
2021-04-28 15:20   ` Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 20/27] drm: Scope all DRM IOCTLs with drm_dev_enter/exit Andrey Grodzovsky
2021-04-29 11:23   ` Daniel Vetter
2021-04-29 11:32     ` Daniel Vetter
2021-04-29 16:04       ` Andrey Grodzovsky
2021-04-29 16:15         ` Felix Kuehling
2021-04-29 16:21           ` Andrey Grodzovsky
2021-04-29 16:29             ` Felix Kuehling
2021-04-29 16:33               ` Andrey Grodzovsky
2021-04-29 19:05         ` Daniel Vetter
2021-04-29 20:34           ` Andrey Grodzovsky
2021-04-30 10:25             ` Daniel Vetter
2021-04-30 17:27               ` Andrey Grodzovsky
2021-05-05 13:57                 ` Andrey Grodzovsky
2021-05-06  9:40                 ` Daniel Vetter
2021-05-06 16:25                   ` Andrey Grodzovsky
2021-05-07  9:11                     ` Daniel Vetter
2021-05-07 15:39                       ` Andrey Grodzovsky
2021-05-07 16:24                         ` Daniel Vetter
2021-05-07 18:00                           ` Andrey Grodzovsky
2021-05-10 15:46                             ` Daniel Vetter
2021-04-28 15:12 ` [PATCH v5 21/27] drm/amdgpu: Add support for hot-unplug feature at DRM level Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 22/27] drm/amd/display: Scope all DM queued work with drm_dev_enter/exit Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 23/27] drm/amd/powerplay: Scope all PM " Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 24/27] drm/amdkfd: Scope all KFD " Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 25/27] drm/amdgpu: Scope all amdgpu " Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 26/27] drm/amd/display: Remove superflous drm_mode_config_cleanup Andrey Grodzovsky
2021-04-28 15:12 ` [PATCH v5 27/27] drm/amdgpu: Verify DMA opearations from device are done Andrey Grodzovsky
2021-04-28 17:07 ` [PATCH v5 00/27] RFC Support hot device unplug in amdgpu Bjorn Helgaas

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