drm/amdgpu: fixed raven psp cmd prepare and submit

- fw_size in psp_v10_0_prep_cmd_buf is wrongly set as 0
- fixed the wrong calculation of psp_write_ptr_reg in psp_v10_0_cmd_submit

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
index f7cf994..b77feef 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
@@ -136,15 +136,13 @@ int psp_v10_0_prep_cmd_buf(struct amdgpu_firmware_info *ucode, struct psp_gfx_cm
 {
        int ret;
        uint64_t fw_mem_mc_addr = ucode->mc_addr;
-       struct  common_firmware_header *header;
 
        memset(cmd, 0, sizeof(struct psp_gfx_cmd_resp));
-       header = (struct common_firmware_header *)ucode->fw;
 
        cmd->cmd_id = GFX_CMD_ID_LOAD_IP_FW;
        cmd->cmd.cmd_load_ip_fw.fw_phy_addr_lo = lower_32_bits(fw_mem_mc_addr);
        cmd->cmd.cmd_load_ip_fw.fw_phy_addr_hi = upper_32_bits(fw_mem_mc_addr);
-       cmd->cmd.cmd_load_ip_fw.fw_size = le32_to_cpu(header->ucode_size_bytes);
+       cmd->cmd.cmd_load_ip_fw.fw_size = ucode->ucode_size;
 
        ret = psp_v10_0_get_fw_type(ucode, &cmd->cmd.cmd_load_ip_fw.fw_type);
        if (ret)
@@ -245,15 +243,20 @@ int psp_v10_0_cmd_submit(struct psp_context *psp,
        struct psp_gfx_rb_frame * write_frame = psp->km_ring.ring_mem;
        struct psp_ring *ring = &psp->km_ring;
        struct amdgpu_device *adev = psp->adev;
+       uint32_t ring_size_dw = ring->ring_size / 4;
+       uint32_t rb_frame_size_dw = sizeof(struct psp_gfx_rb_frame) / 4;
 
        /* KM (GPCOM) prepare write pointer */
        psp_write_ptr_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
 
        /* Update KM RB frame pointer to new frame */
-       if ((psp_write_ptr_reg % ring->ring_size) == 0)
+       if ((psp_write_ptr_reg % ring_size_dw) == 0)
                write_frame = ring->ring_mem;
        else
-               write_frame = ring->ring_mem + (psp_write_ptr_reg / (sizeof(struct psp_gfx_rb_frame) / 4));
+               write_frame = ring->ring_mem + (psp_write_ptr_reg / rb_frame_size_dw);
+
+       /* Initialize KM RB frame */
+       memset(write_frame, 0, sizeof(struct psp_gfx_rb_frame));
 
        /* Update KM RB frame */
        write_frame->cmd_buf_addr_hi = upper_32_bits(cmd_buf_mc_addr);
@@ -263,8 +266,7 @@ int psp_v10_0_cmd_submit(struct psp_context *psp,
        write_frame->fence_value = index;
 
        /* Update the write Pointer in DWORDs */
-       psp_write_ptr_reg += sizeof(struct psp_gfx_rb_frame) / 4;
-       psp_write_ptr_reg = (psp_write_ptr_reg >= ring->ring_size) ? 0 : psp_write_ptr_reg;
+       psp_write_ptr_reg = (psp_write_ptr_reg + rb_frame_size_dw) % ring_size_dw;
        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, psp_write_ptr_reg);
 
        return 0;