From 71e5f0cb936526d4f84a1353e8174a45eeab747b Mon Sep 17 00:00:00 2001 From: Hawking Zhang Date: Mon, 2 Dec 2019 13:37:42 +0800 Subject: [PATCH] drm/amdgpu: unload asd in psp hw de-init phase issue unload_ta_cmd to tOS to unload asd driver Signed-off-by: Hawking Zhang Reviewed-by: Alex Deucher Acked-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 36 +++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 96a88d2e6c6c..6ff5e78bf80b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -365,6 +365,40 @@ static int psp_asd_load(struct psp_context *psp) return ret; } +static void psp_prep_asd_unload_cmd_buf(struct psp_gfx_cmd_resp *cmd, + uint32_t asd_session_id) +{ + cmd->cmd_id = GFX_CMD_ID_UNLOAD_TA; + cmd->cmd.cmd_unload_ta.session_id = asd_session_id; +} + +static int psp_asd_unload(struct psp_context *psp) +{ + int ret; + struct psp_gfx_cmd_resp *cmd; + + if (amdgpu_sriov_vf(psp->adev)) + return 0; + + if (!psp->asd_context.asd_initialized) + return 0; + + cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL); + if (!cmd) + return -ENOMEM; + + psp_prep_asd_unload_cmd_buf(cmd, psp->asd_context.session_id); + + ret = psp_cmd_submit_buf(psp, NULL, cmd, + psp->fence_buf_mc_addr); + if (!ret) + psp->asd_context.asd_initialized = false; + + kfree(cmd); + + return ret; +} + static void psp_prep_reg_prog_cmd_buf(struct psp_gfx_cmd_resp *cmd, uint32_t id, uint32_t value) { @@ -1602,6 +1636,8 @@ static int psp_hw_fini(void *handle) psp_hdcp_terminate(psp); } + psp_asd_unload(psp); + psp_ring_destroy(psp, PSP_RING_TYPE__KM); pptr = amdgpu_sriov_vf(psp->adev) ? &tmr_buf : NULL; -- 2.45.2