[PATCH] drm/amdgpu: adjust fence driver enable sequence
Chen, Guchun
Guchun.Chen at amd.com
Mon Aug 2 03:54:55 UTC 2021
[Public]
Hi Lothian,
Thanks for your report. I have a following fix for this problem, will send it out soon for review.
Regards,
Guchun
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Mike Lothian
Sent: Sunday, August 1, 2021 7:57 PM
To: Gao, Likun <Likun.Gao at amd.com>
Cc: amd-gfx list <amd-gfx at lists.freedesktop.org>; Zhang, Hawking <Hawking.Zhang at amd.com>
Subject: Re: [PATCH] drm/amdgpu: adjust fence driver enable sequence
Hi
This patch is causing me issues on my Skylake/Tonga PRIME laptop, reverting sorts it
More details here: https://gitlab.freedesktop.org/drm/amd/-/issues/1668<https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.freedesktop.org%2Fdrm%2Famd%2F-%2Fissues%2F1668&data=04%7C01%7Cguchun.chen%40amd.com%7C858e6bd7d2da4e442f0308d954e380e8%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637634159140610948%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=aDq%2F%2Fiyqn32JZXJ%2Fet9HGZWIen%2FeRhBBd%2FXJ4Wgv5Ds%3D&reserved=0>
Cheers
Mike
On Wed, 28 Jul 2021 at 05:07, Likun Gao <likun.gao at amd.com<mailto:likun.gao at amd.com>> wrote:
From: Likun Gao <Likun.Gao at amd.com<mailto:Likun.Gao at amd.com>>
Fence driver was enabled per ring when sw init on per IP block before.
Change to enable all the fence driver at the same time after
amdgpu_device_ip_init finished.
Rename some function related to fence to make it reasonable for read.
Signed-off-by: Likun Gao <Likun.Gao at amd.com<mailto:Likun.Gao at amd.com>>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 6 ++++--
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 15 ++++++---------
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 4 ++--
3 files changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index d3a4299b1f30..77195a4e5c59 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3675,6 +3675,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
goto release_ras_con;
}
+ amdgpu_fence_driver_hw_init(adev);
+
dev_info(adev->dev,
"SE %d, SH per SE %d, CU per SH %d, active_cu_number %d\n",
adev->gfx.config.max_shader_engines,
@@ -3939,7 +3941,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
/* evict vram memory */
amdgpu_bo_evict_vram(adev);
- amdgpu_fence_driver_suspend(adev);
+ amdgpu_fence_driver_hw_fini(adev);
amdgpu_device_ip_suspend_phase2(adev);
/* evict remaining vram memory
@@ -3984,7 +3986,7 @@ int amdgpu_device_resume(struct drm_device *dev, bool fbcon)
dev_err(adev->dev, "amdgpu_device_ip_resume failed (%d).\n", r);
return r;
}
- amdgpu_fence_driver_resume(adev);
+ amdgpu_fence_driver_hw_init(adev);
r = amdgpu_device_ip_late_init(adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 72d9b92b1754..e2f606bca779 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -417,9 +417,6 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
}
amdgpu_fence_write(ring, atomic_read(&ring->fence_drv.last_seq));
- if (irq_src)
- amdgpu_irq_get(adev, irq_src, irq_type);
-
ring->fence_drv.irq_src = irq_src;
ring->fence_drv.irq_type = irq_type;
ring->fence_drv.initialized = true;
@@ -572,14 +569,14 @@ void amdgpu_fence_driver_fini_sw(struct amdgpu_device *adev)
}
/**
- * amdgpu_fence_driver_suspend - suspend the fence driver
+ * amdgpu_fence_driver_hw_fini - disable the fence driver
* for all possible rings.
*
* @adev: amdgpu device pointer
*
- * Suspend the fence driver for all possible rings (all asics).
+ * Disable the fence driver for all possible rings (all asics).
*/
-void amdgpu_fence_driver_suspend(struct amdgpu_device *adev)
+void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev)
{
int i, r;
@@ -603,18 +600,18 @@ void amdgpu_fence_driver_suspend(struct amdgpu_device *adev)
}
/**
- * amdgpu_fence_driver_resume - resume the fence driver
+ * amdgpu_fence_driver_hw_init - enable the fence driver
* for all possible rings.
*
* @adev: amdgpu device pointer
*
- * Resume the fence driver for all possible rings (all asics).
+ * Enable the fence driver for all possible rings (all asics).
* Not all asics have all rings, so each asic will only
* start the fence driver on the rings it has using
* amdgpu_fence_driver_start_ring().
* Returns 0 for success.
*/
-void amdgpu_fence_driver_resume(struct amdgpu_device *adev)
+void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev)
{
int i;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index e7d3d0dbdd96..64471018f5e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -117,8 +117,8 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
struct amdgpu_irq_src *irq_src,
unsigned irq_type);
-void amdgpu_fence_driver_suspend(struct amdgpu_device *adev);
-void amdgpu_fence_driver_resume(struct amdgpu_device *adev);
+void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev);
+void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev);
int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence,
unsigned flags);
int amdgpu_fence_emit_polling(struct amdgpu_ring *ring, uint32_t *s,
--
2.25.1
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