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author | Shane Xiao <shane.xiao@amd.com> | 2023-04-25 22:39:08 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:22:55 -0400 |
commit | 1c312e816c4088d183c41b5d944f89775f3789bd (patch) | |
tree | 117a4a6506ed4f16e31272887a7321f7bd450e37 /drivers/gpu/drm/amd/amdgpu/soc15.c | |
parent | b2edaac4f2fb4866c3f9b7be5c39f518fd497a3b (diff) | |
download | linux-stable-1c312e816c4088d183c41b5d944f89775f3789bd.tar.gz linux-stable-1c312e816c4088d183c41b5d944f89775f3789bd.tar.bz2 linux-stable-1c312e816c4088d183c41b5d944f89775f3789bd.zip |
drm/amdgpu: Enable doorbell selfring after resize FB BAR
[Why]
The selfring doorbell aperture will change when resize FB
BAR successfully during gmc sw init, we should reorder
the sequence of enabling doorbell selfring aperture.
[How]
Move enable_doorbell_selfring_aperture from *_common_hw_init
to *_common_late_init.
This fixes the potential issue that GPU ring its own
doorbell when this device is in translated mode when
iommu is on.
v2: Remove *_enable_doorbell_aperture functions (Christian)
v3: Add comments to note that why we need enable doorbell
selfring late (Christian)
Signed-off-by: Shane Xiao <shane.xiao@amd.com>
Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Tested-by: Xiaomeng Hou <Xiaomeng.Hou@amd.com>
Reviewed-by: Christian K�nig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/soc15.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/soc15.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index 4d1487a9836c..3221522e71e8 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -619,13 +619,6 @@ static void soc15_program_aspm(struct amdgpu_device *adev) adev->nbio.funcs->program_aspm(adev); } -static void soc15_enable_doorbell_aperture(struct amdgpu_device *adev, - bool enable) -{ - adev->nbio.funcs->enable_doorbell_aperture(adev, enable); - adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, enable); -} - const struct amdgpu_ip_block_version vega10_common_ip_block = { .type = AMD_IP_BLOCK_TYPE_COMMON, @@ -1125,6 +1118,11 @@ static int soc15_common_late_init(void *handle) if (amdgpu_sriov_vf(adev)) xgpu_ai_mailbox_get_irq(adev); + /* Enable selfring doorbell aperture late because doorbell BAR + * aperture will change if resize BAR successfully in gmc sw_init. + */ + adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, true); + return 0; } @@ -1182,7 +1180,8 @@ static int soc15_common_hw_init(void *handle) adev->nbio.funcs->remap_hdp_registers(adev); /* enable the doorbell aperture */ - soc15_enable_doorbell_aperture(adev, true); + adev->nbio.funcs->enable_doorbell_aperture(adev, true); + /* HW doorbell routing policy: doorbell writing not * in SDMA/IH/MM/ACV range will be routed to CP. So * we need to init SDMA doorbell range prior @@ -1198,8 +1197,14 @@ static int soc15_common_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; - /* disable the doorbell aperture */ - soc15_enable_doorbell_aperture(adev, false); + /* Disable the doorbell aperture and selfring doorbell aperture + * separately in hw_fini because soc15_enable_doorbell_aperture + * has been removed and there is no need to delay disabling + * selfring doorbell. + */ + adev->nbio.funcs->enable_doorbell_aperture(adev, false); + adev->nbio.funcs->enable_doorbell_selfring_aperture(adev, false); + if (amdgpu_sriov_vf(adev)) xgpu_ai_mailbox_put_irq(adev); |