[PATCH v5 06/27] drm/amdgpu: Handle IOMMU enabled case.
Andrey Grodzovsky
andrey.grodzovsky at amd.com
Wed Apr 28 15:11:46 UTC 2021
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 at 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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