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| author | Gavin Wan <Gavin.Wan@amd.com> | 2017-06-23 13:55:15 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-14 11:05:52 -0400 |
| commit | 890419409a3aba2ca7185a824e47d8ded8df11a2 (patch) | |
| tree | 0b9575763284a062e87738446a7c77c44095fb98 /drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | |
| parent | 8e1b90cc44181405418071a13ead5892c3879239 (diff) | |
| download | lwn-890419409a3aba2ca7185a824e47d8ded8df11a2.tar.gz lwn-890419409a3aba2ca7185a824e47d8ded8df11a2.zip | |
drm/amdgpu: Support passing amdgpu critical error to host via GPU Mailbox.
This feature works for SRIOV enviroment. For non-SRIOV enviroment, the
trans_error function does nothing.
The error information includes error_code (16bit), error_flags(16bit)
and error_data(64bit). Since there are not many errors, we keep the
errors in an array and transfer all errors to Host before amdgpu
initialization function (amdgpu_device_init) exit.
Signed-off-by: Gavin Wan <Gavin.Wan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index bde3ca3c21c1..2812d88a8bdd 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -72,21 +72,6 @@ static void xgpu_ai_mailbox_set_valid(struct amdgpu_device *adev, bool val) reg); } -static void xgpu_ai_mailbox_trans_msg(struct amdgpu_device *adev, - enum idh_request req) -{ - u32 reg; - - reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, - mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0)); - reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0, - MSGBUF_DATA, req); - WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0), - reg); - - xgpu_ai_mailbox_set_valid(adev, true); -} - static int xgpu_ai_mailbox_rcv_msg(struct amdgpu_device *adev, enum idh_event event) { @@ -154,13 +139,25 @@ static int xgpu_ai_poll_msg(struct amdgpu_device *adev, enum idh_event event) return r; } - -static int xgpu_ai_send_access_requests(struct amdgpu_device *adev, - enum idh_request req) -{ +static void xgpu_ai_mailbox_trans_msg (struct amdgpu_device *adev, + enum idh_request req, u32 data1, u32 data2, u32 data3) { + u32 reg; int r; - xgpu_ai_mailbox_trans_msg(adev, req); + reg = RREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, + mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0)); + reg = REG_SET_FIELD(reg, BIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0, + MSGBUF_DATA, req); + WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW0), + reg); + WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW1), + data1); + WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW2), + data2); + WREG32_NO_KIQ(SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF0_MAILBOX_MSGBUF_TRN_DW3), + data3); + + xgpu_ai_mailbox_set_valid(adev, true); /* start to poll ack */ r = xgpu_ai_poll_ack(adev); @@ -168,6 +165,14 @@ static int xgpu_ai_send_access_requests(struct amdgpu_device *adev, pr_err("Doesn't get ack from pf, continue\n"); xgpu_ai_mailbox_set_valid(adev, false); +} + +static int xgpu_ai_send_access_requests(struct amdgpu_device *adev, + enum idh_request req) +{ + int r; + + xgpu_ai_mailbox_trans_msg(adev, req, 0, 0, 0); /* start to check msg if request is idh_req_gpu_init_access */ if (req == IDH_REQ_GPU_INIT_ACCESS || @@ -342,4 +347,5 @@ 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, + .trans_msg = xgpu_ai_mailbox_trans_msg, }; |