I don't see this is a necessary patch, driver already have the implement to check if VF FLR is completed or not, see "xgpu_ai/vi_mailbox_flr_work()"
Driver won't do gpu reset until this function received the NOTIFICATION_CMPL message Do you have any particular reason to add this wait_reset ? if so please send out the patch that use this interface BR Monk -----Original Message----- From: amd-gfx [mailto:[email protected]] On Behalf Of Pixel Ding Sent: 2017年10月23日 18:04 To: [email protected] Cc: Sun, Gary <[email protected]>; Ding, Pixel <[email protected]>; Li, Bingley <[email protected]> Subject: [PATCH 6/7] drm/amdgpu/virt: add wait_reset virt ops From: pding <[email protected]> Driver can use this interface to check if there's a function level reset done in hypervisor. Signed-off-by: pding <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 16 ++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 2 ++ drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 1 + drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c | 6 ++++++ 4 files changed, 25 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index 33dac7e..6a4a901 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -231,6 +231,22 @@ int amdgpu_virt_reset_gpu(struct amdgpu_device *adev) } /** + * amdgpu_virt_wait_reset() - wait for reset gpu completed + * @amdgpu: amdgpu device. + * Wait for GPU reset completed. + * Return: Zero if reset success, otherwise will return error. + */ +int amdgpu_virt_wait_reset(struct amdgpu_device *adev) { + struct amdgpu_virt *virt = &adev->virt; + + if (!virt->ops || !virt->ops->wait_reset) + return -EINVAL; + + return virt->ops->wait_reset(adev); +} + +/** * amdgpu_virt_alloc_mm_table() - alloc memory for mm table * @amdgpu: amdgpu device. * MM table is used by UVD and VCE for its initialization diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h index 81efb9d..d149aca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h @@ -55,6 +55,7 @@ struct amdgpu_virt_ops { int (*req_full_gpu)(struct amdgpu_device *adev, bool init); int (*rel_full_gpu)(struct amdgpu_device *adev, bool init); int (*reset_gpu)(struct amdgpu_device *adev); + int (*wait_reset)(struct amdgpu_device *adev); void (*trans_msg)(struct amdgpu_device *adev, u32 req, u32 data1, u32 data2, u32 data3); }; @@ -286,6 +287,7 @@ void amdgpu_virt_kiq_wreg(struct amdgpu_device *adev, uint32_t reg, uint32_t v); int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init); int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init); int amdgpu_virt_reset_gpu(struct amdgpu_device *adev); +int amdgpu_virt_wait_reset(struct amdgpu_device *adev); int amdgpu_sriov_gpu_reset(struct amdgpu_device *adev, struct amdgpu_job *job); int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev); void amdgpu_virt_free_mm_table(struct amdgpu_device *adev); diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index b4906d2..f91aab3 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -353,5 +353,6 @@ const struct amdgpu_virt_ops xgpu_ai_virt_ops = { .req_full_gpu = xgpu_ai_request_full_gpu_access, .rel_full_gpu = xgpu_ai_release_full_gpu_access, .reset_gpu = xgpu_ai_request_reset, + .wait_reset = NULL, .trans_msg = xgpu_ai_mailbox_trans_msg, }; diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c index c25a831..27b03c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c @@ -458,6 +458,11 @@ static int xgpu_vi_request_reset(struct amdgpu_device *adev) return xgpu_vi_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS); } +static int xgpu_vi_wait_reset_cmpl(struct amdgpu_device *adev) { + return xgpu_vi_poll_msg(adev, IDH_FLR_NOTIFICATION_CMPL); } + static int xgpu_vi_request_full_gpu_access(struct amdgpu_device *adev, bool init) { @@ -613,5 +618,6 @@ const struct amdgpu_virt_ops xgpu_vi_virt_ops = { .req_full_gpu = xgpu_vi_request_full_gpu_access, .rel_full_gpu = xgpu_vi_release_full_gpu_access, .reset_gpu = xgpu_vi_request_reset, + .wait_reset = xgpu_vi_wait_reset_cmpl, .trans_msg = NULL, /* Does not need to trans VF errors to host. */ }; -- 2.9.5 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
