[PATCH v3 08/12] drm/amdgpu: Split amdgpu_device_fini into early and late
Andrey Grodzovsky
andrey.grodzovsky at amd.com
Sat Nov 21 05:21:18 UTC 2020
Some of the stuff in amdgpu_device_fini such as HW interrupts
disable and pending fences finilization must be done right away on
pci_remove while most of the stuff which relates to finilizing and
releasing driver data structures can be kept until
drm_driver.release hook is called, i.e. when the last device
reference is dropped.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu.h | 6 +++++-
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 16 ++++++++++++----
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 ++-----
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 15 ++++++++++++++-
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 24 +++++++++++++++---------
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 1 +
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 12 +++++++++++-
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 3 +++
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 3 ++-
9 files changed, 65 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 83ac06a..6243f6d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1063,7 +1063,9 @@ static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev)
int amdgpu_device_init(struct amdgpu_device *adev,
uint32_t flags);
-void amdgpu_device_fini(struct amdgpu_device *adev);
+void amdgpu_device_fini_early(struct amdgpu_device *adev);
+void amdgpu_device_fini_late(struct amdgpu_device *adev);
+
int amdgpu_gpu_wait_for_idle(struct amdgpu_device *adev);
void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos,
@@ -1275,6 +1277,8 @@ void amdgpu_driver_lastclose_kms(struct drm_device *dev);
int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv);
void amdgpu_driver_postclose_kms(struct drm_device *dev,
struct drm_file *file_priv);
+void amdgpu_driver_release_kms(struct drm_device *dev);
+
int amdgpu_device_ip_suspend(struct amdgpu_device *adev);
int amdgpu_device_suspend(struct drm_device *dev, bool fbcon);
int amdgpu_device_resume(struct drm_device *dev, bool fbcon);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 2f60b70..797d94d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3557,14 +3557,12 @@ int amdgpu_device_init(struct amdgpu_device *adev,
* Tear down the driver info (all asics).
* Called at driver shutdown.
*/
-void amdgpu_device_fini(struct amdgpu_device *adev)
+void amdgpu_device_fini_early(struct amdgpu_device *adev)
{
dev_info(adev->dev, "amdgpu: finishing device.\n");
flush_delayed_work(&adev->delayed_init_work);
adev->shutdown = true;
- kfree(adev->pci_state);
-
/* make sure IB test finished before entering exclusive mode
* to avoid preemption on IB test
* */
@@ -3581,11 +3579,18 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
else
drm_atomic_helper_shutdown(adev_to_drm(adev));
}
- amdgpu_fence_driver_fini(adev);
+ amdgpu_fence_driver_fini_early(adev);
if (adev->pm_sysfs_en)
amdgpu_pm_sysfs_fini(adev);
amdgpu_fbdev_fini(adev);
+
+ amdgpu_irq_fini_early(adev);
+}
+
+void amdgpu_device_fini_late(struct amdgpu_device *adev)
+{
amdgpu_device_ip_fini(adev);
+ amdgpu_fence_driver_fini_late(adev);
release_firmware(adev->firmware.gpu_info_fw);
adev->firmware.gpu_info_fw = NULL;
adev->accel_working = false;
@@ -3621,6 +3626,9 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
amdgpu_pmu_fini(adev);
if (adev->mman.discovery_bin)
amdgpu_discovery_fini(adev);
+
+ kfree(adev->pci_state);
+
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 7f98cf1..3d130fc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1244,14 +1244,10 @@ amdgpu_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
-#ifdef MODULE
- if (THIS_MODULE->state != MODULE_STATE_GOING)
-#endif
- DRM_ERROR("Hotplug removal is not supported\n");
drm_dev_unplug(dev);
amdgpu_driver_unload_kms(dev);
+
pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
drm_dev_put(dev);
}
@@ -1557,6 +1553,7 @@ static struct drm_driver kms_driver = {
.dumb_create = amdgpu_mode_dumb_create,
.dumb_map_offset = amdgpu_mode_dumb_mmap,
.fops = &amdgpu_driver_kms_fops,
+ .release = &amdgpu_driver_release_kms,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index d0b0021..c123aa6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -523,7 +523,7 @@ int amdgpu_fence_driver_init(struct amdgpu_device *adev)
*
* Tear down the fence driver for all possible rings (all asics).
*/
-void amdgpu_fence_driver_fini(struct amdgpu_device *adev)
+void amdgpu_fence_driver_fini_early(struct amdgpu_device *adev)
{
unsigned i, j;
int r;
@@ -544,6 +544,19 @@ void amdgpu_fence_driver_fini(struct amdgpu_device *adev)
if (!ring->no_scheduler)
drm_sched_fini(&ring->sched);
del_timer_sync(&ring->fence_drv.fallback_timer);
+ }
+}
+
+void amdgpu_fence_driver_fini_late(struct amdgpu_device *adev)
+{
+ unsigned int i, j;
+
+ for (i = 0; i < AMDGPU_MAX_RINGS; i++) {
+ struct amdgpu_ring *ring = adev->rings[i];
+
+ if (!ring || !ring->fence_drv.initialized)
+ continue;
+
for (j = 0; j <= ring->fence_drv.num_fences_mask; ++j)
dma_fence_put(ring->fence_drv.fences[j]);
kfree(ring->fence_drv.fences);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 300ac73..a833197 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -49,6 +49,7 @@
#include <drm/drm_irq.h>
#include <drm/drm_vblank.h>
#include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "amdgpu_ih.h"
#include "atom.h"
@@ -297,6 +298,20 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
return 0;
}
+
+void amdgpu_irq_fini_early(struct amdgpu_device *adev)
+{
+ if (adev->irq.installed) {
+ drm_irq_uninstall(&adev->ddev);
+ adev->irq.installed = false;
+ if (adev->irq.msi_enabled)
+ pci_free_irq_vectors(adev->pdev);
+
+ if (!amdgpu_device_has_dc_support(adev))
+ flush_work(&adev->hotplug_work);
+ }
+}
+
/**
* amdgpu_irq_fini - shut down interrupt handling
*
@@ -310,15 +325,6 @@ void amdgpu_irq_fini(struct amdgpu_device *adev)
{
unsigned i, j;
- if (adev->irq.installed) {
- drm_irq_uninstall(adev_to_drm(adev));
- adev->irq.installed = false;
- if (adev->irq.msi_enabled)
- pci_free_irq_vectors(adev->pdev);
- if (!amdgpu_device_has_dc_support(adev))
- flush_work(&adev->hotplug_work);
- }
-
for (i = 0; i < AMDGPU_IRQ_CLIENTID_MAX; ++i) {
if (!adev->irq.client[i].sources)
continue;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
index c718e94..718c70f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
@@ -104,6 +104,7 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg);
int amdgpu_irq_init(struct amdgpu_device *adev);
void amdgpu_irq_fini(struct amdgpu_device *adev);
+void amdgpu_irq_fini_early(struct amdgpu_device *adev);
int amdgpu_irq_add_id(struct amdgpu_device *adev,
unsigned client_id, unsigned src_id,
struct amdgpu_irq_src *source);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index a0af8a7..9e30c5c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -29,6 +29,7 @@
#include "amdgpu.h"
#include <drm/drm_debugfs.h>
#include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
#include "amdgpu_sched.h"
#include "amdgpu_uvd.h"
#include "amdgpu_vce.h"
@@ -94,7 +95,7 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
}
amdgpu_acpi_fini(adev);
- amdgpu_device_fini(adev);
+ amdgpu_device_fini_early(adev);
}
void amdgpu_register_gpu_instance(struct amdgpu_device *adev)
@@ -1147,6 +1148,15 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev,
pm_runtime_put_autosuspend(dev->dev);
}
+
+void amdgpu_driver_release_kms(struct drm_device *dev)
+{
+ struct amdgpu_device *adev = drm_to_adev(dev);
+
+ amdgpu_device_fini_late(adev);
+ pci_set_drvdata(adev->pdev, NULL);
+}
+
/*
* VBlank related functions.
*/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 9d11b84..caf828a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2142,9 +2142,12 @@ int amdgpu_ras_pre_fini(struct amdgpu_device *adev)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
+ //DRM_ERROR("adev 0x%llx", (long long unsigned int)adev);
+
if (!con)
return 0;
+
/* Need disable ras on all IPs here before ip [hw/sw]fini */
amdgpu_ras_disable_all_features(adev, 0);
amdgpu_ras_recovery_fini(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 7112137..074f36b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -107,7 +107,8 @@ struct amdgpu_fence_driver {
};
int amdgpu_fence_driver_init(struct amdgpu_device *adev);
-void amdgpu_fence_driver_fini(struct amdgpu_device *adev);
+void amdgpu_fence_driver_fini_early(struct amdgpu_device *adev);
+void amdgpu_fence_driver_fini_late(struct amdgpu_device *adev);
void amdgpu_fence_driver_force_completion(struct amdgpu_ring *ring);
int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
--
2.7.4
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