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drm/amdgpu/psp: add helper function to load/unload xgmi ta 

Add helper functions for the psp xgmi ta.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
hifive-unleashed-5.1
Hawking Zhang 2018-10-12 09:43:23 +08:00 committed by Alex Deucher
parent 51e7177f36
commit 97c8d17110
1 changed files with 98 additions and 0 deletions
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98
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
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@ -271,6 +271,104 @@ static int psp_asd_load(struct psp_context *psp)
return ret;
}
static void psp_prep_xgmi_ta_load_cmd_buf(struct psp_gfx_cmd_resp *cmd,
uint64_t xgmi_ta_mc, uint64_t xgmi_mc_shared,
uint32_t xgmi_ta_size, uint32_t shared_size)
{
cmd->cmd_id = GFX_CMD_ID_LOAD_TA;
cmd->cmd.cmd_load_ta.app_phy_addr_lo = lower_32_bits(xgmi_ta_mc);
cmd->cmd.cmd_load_ta.app_phy_addr_hi = upper_32_bits(xgmi_ta_mc);
cmd->cmd.cmd_load_ta.app_len = xgmi_ta_size;
cmd->cmd.cmd_load_ta.cmd_buf_phy_addr_lo = lower_32_bits(xgmi_mc_shared);
cmd->cmd.cmd_load_ta.cmd_buf_phy_addr_hi = upper_32_bits(xgmi_mc_shared);
cmd->cmd.cmd_load_ta.cmd_buf_len = shared_size;
}
static int psp_xgmi_init_shared_buf(struct psp_context *psp)
{
int ret;
/*
* Allocate 16k memory aligned to 4k from Frame Buffer (local
* physical) for xgmi ta <-> Driver
*/
ret = amdgpu_bo_create_kernel(psp->adev, PSP_XGMI_SHARED_MEM_SIZE,
PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
&psp->xgmi_context.xgmi_shared_bo,
&psp->xgmi_context.xgmi_shared_mc_addr,
&psp->xgmi_context.xgmi_shared_buf);
return ret;
}
static int psp_xgmi_load(struct psp_context *psp)
{
int ret;
struct psp_gfx_cmd_resp *cmd;
/*
* TODO: bypass the loading in sriov for now
*/
if (amdgpu_sriov_vf(psp->adev))
return 0;
cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
memset(psp->fw_pri_buf, 0, PSP_1_MEG);
memcpy(psp->fw_pri_buf, psp->ta_xgmi_start_addr, psp->ta_xgmi_ucode_size);
psp_prep_xgmi_ta_load_cmd_buf(cmd, psp->fw_pri_mc_addr,
psp->xgmi_context.xgmi_shared_mc_addr,
psp->ta_xgmi_ucode_size, PSP_XGMI_SHARED_MEM_SIZE);
ret = psp_cmd_submit_buf(psp, NULL, cmd,
psp->fence_buf_mc_addr);
if (!ret) {
psp->xgmi_context.initialized = 1;
psp->xgmi_context.session_id = cmd->resp.session_id;
}
kfree(cmd);
return ret;
}
static void psp_prep_xgmi_ta_unload_cmd_buf(struct psp_gfx_cmd_resp *cmd,
uint32_t xgmi_session_id)
{
cmd->cmd_id = GFX_CMD_ID_UNLOAD_TA;
cmd->cmd.cmd_unload_ta.session_id = xgmi_session_id;
}
static int psp_xgmi_unload(struct psp_context *psp)
{
int ret;
struct psp_gfx_cmd_resp *cmd;
/*
* TODO: bypass the unloading in sriov for now
*/
if (amdgpu_sriov_vf(psp->adev))
return 0;
cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
psp_prep_xgmi_ta_unload_cmd_buf(cmd, psp->xgmi_context.session_id);
ret = psp_cmd_submit_buf(psp, NULL, cmd,
psp->fence_buf_mc_addr);
kfree(cmd);
return ret;
}
static int psp_hw_start(struct psp_context *psp)
{
struct amdgpu_device *adev = psp->adev;