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drm/amdgpu: implement PSP cmd GFX_CMD_ID_PROG_REG

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Add implementation to program regs by PSP, currently the following
IH registers are supported:
	IH_RB_CNTL
	IH_RB_CNTL_RING1
	IH_RB_CNTL_RING2

Signed-off-by: Trigger Huang <Trigger.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Trigger Huang 2019-05-06 15:27:23 +08:00 committed by Alex Deucher
parent 3880369f6a
commit c5d19419ed
2 changed files with 38 additions and 1 deletions
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28
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
View File

@ -289,6 +289,34 @@ static int psp_asd_load(struct psp_context *psp)
return ret;
}
static void psp_prep_reg_prog_cmd_buf(struct psp_gfx_cmd_resp *cmd,
uint32_t id, uint32_t value)
{
cmd->cmd_id = GFX_CMD_ID_PROG_REG;
cmd->cmd.cmd_setup_reg_prog.reg_value = value;
cmd->cmd.cmd_setup_reg_prog.reg_id = id;
}
int psp_reg_program(struct psp_context *psp, enum psp_reg_prog_id reg,
uint32_t value)
{
struct psp_gfx_cmd_resp *cmd = NULL;
int ret = 0;
if (reg >= PSP_REG_LAST)
return -EINVAL;
cmd = kzalloc(sizeof(struct psp_gfx_cmd_resp), GFP_KERNEL);
if (!cmd)
return -ENOMEM;
psp_prep_reg_prog_cmd_buf(cmd, reg, value);
ret = psp_cmd_submit_buf(psp, NULL, cmd, psp->fence_buf_mc_addr);
kfree(cmd);
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)

11
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h
View File

@ -62,6 +62,14 @@ struct psp_ring
uint32_t ring_size;
};
/* More registers may will be supported */
enum psp_reg_prog_id {
PSP_REG_IH_RB_CNTL = 0, /* register IH_RB_CNTL */
PSP_REG_IH_RB_CNTL_RING1 = 1, /* register IH_RB_CNTL_RING1 */
PSP_REG_IH_RB_CNTL_RING2 = 2, /* register IH_RB_CNTL_RING2 */
PSP_REG_LAST
};
struct psp_funcs
{
int (*init_microcode)(struct psp_context *psp);
@ -252,5 +260,6 @@ int psp_ras_enable_features(struct psp_context *psp,
union ta_ras_cmd_input *info, bool enable);
extern const struct amdgpu_ip_block_version psp_v11_0_ip_block;
int psp_reg_program(struct psp_context *psp, enum psp_reg_prog_id reg,
uint32_t value);
#endif