[AMD Public Use]
BTW, Please also make the change for backdoor loading code path as we need that for further ASIC bring up. Thanks.
Regards,
Hawking
-----Original Message-----
From: Zhang, Hawking
Sent: 2019年11月29日 17:08
To: Liu, Monk <Monk.Liu@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: RE: [PATCH 1/2] drm/amdgpu: fix GFX10 missing CSIB set
[AMD Official Use Only - Internal Distribution Only]
The gfx10 PG and gfxoff are fully controlled by RLC and SMU fw and don't need driver to be involved anymore. So the legacy programing for gfx_idle_threshold.etc will not be applied to gfx10.
More aggressively, let's drop gfx_v10_0_init_pg and just init csb.
Regards,
Hawking
-----Original Message-----
From: Liu, Monk <Monk.Liu@xxxxxxx>
Sent: 2019年11月29日 16:47
To: Zhang, Hawking <Hawking.Zhang@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Subject: RE: [PATCH 1/2] drm/amdgpu: fix GFX10 missing CSIB set
For now init_pg() is good enough for bare-metal and SR-IOV, but checkout GFX9, there are more jobs in init_pg(), so in the future I'd expect there will be More lines come into init_pg() on gfx10 and by that time I need to modify init_pg() ,
So IMHO the best way is use init_csb() from the beginning
Thanks
_____________________________________
Monk Liu|GPU Virtualization Team |AMD
-----Original Message-----
From: Zhang, Hawking <Hawking.Zhang@xxxxxxx>
Sent: Friday, November 29, 2019 4:43 PM
To: Liu, Monk <Monk.Liu@xxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Monk <Monk.Liu@xxxxxxx>
Subject: RE: [PATCH 1/2] drm/amdgpu: fix GFX10 missing CSIB set
[AMD Official Use Only - Internal Distribution Only]
I don't think you need to introduce SRIOV specific path here. The gfx_v10_0_init_pg should be good enough to cover both bare-metal and virtualization case.
You can drop the tlb flush in that function if that's your major concern.
Regards,
Hawking
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Monk Liu
Sent: 2019年11月29日 16:24
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Liu, Monk <Monk.Liu@xxxxxxx>
Subject: [PATCH 1/2] drm/amdgpu: fix GFX10 missing CSIB set
still need to init csb even for SRIOV
Signed-off-by: Monk Liu <Monk.Liu@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 74edfd9..230e8af 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -1874,14 +1874,16 @@ static int gfx_v10_0_rlc_resume(struct amdgpu_device *adev) {
int r;
- if (amdgpu_sriov_vf(adev))
- return 0;
-
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
r = gfx_v10_0_wait_for_rlc_autoload_complete(adev);
if (r)
return r;
+ if (amdgpu_sriov_vf(adev)) {
+ gfx_v10_0_init_csb(adev);
+ return 0;
+ }
+
r = gfx_v10_0_init_pg(adev);
if (r)
return r;
--
2.7.4
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