[agd5f:drm-next-5.18 65/86] drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_smu.c:114:5: warning: no previous prototype for 'dcn316_smu_send_msg_with_param'

From: kernel test robot
Date: Sun Feb 20 2022 - 21:13:12 EST


tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next-5.18
head: b63c54d978236dd6014cf2ffba96d626e97c915c
commit: c477eaa6a79da6af7e59f74e69af7d6b3af52a23 [65/86] drm/amd/display: Add DCN316 resource and SMU clock manager
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20220221/202202211018.P5xaC86f-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f drm-next-5.18
git checkout c477eaa6a79da6af7e59f74e69af7d6b3af52a23
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_smu.c:114:5: warning: no previous prototype for 'dcn316_smu_send_msg_with_param' [-Wmissing-prototypes]
114 | int dcn316_smu_send_msg_with_param(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_smu.c:171:5: warning: no previous prototype for 'dcn316_smu_set_voltage_via_phyclk' [-Wmissing-prototypes]
171 | int dcn316_smu_set_voltage_via_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phyclk_khz)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32,
from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_smu.c:26:
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:127:22: warning: 'SYNAPTICS_DEVICE_ID' defined but not used [-Wunused-const-variable=]
127 | static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
| ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:124:22: warning: 'DP_SINK_DEVICE_STR_ID_2' defined but not used [-Wunused-const-variable=]
124 | static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5, 0};
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:123:22: warning: 'DP_SINK_DEVICE_STR_ID_1' defined but not used [-Wunused-const-variable=]
123 | static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3, 0};
| ^~~~~~~~~~~~~~~~~~~~~~~
--
In file included from drivers/gpu/drm/amd/amdgpu/../display/dmub/dmub_srv.h:67,
from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_dmub_srv.h:30,
from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c:41:
drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h: In function 'dmub_rb_flush_pending':
drivers/gpu/drm/amd/amdgpu/../display/dmub/inc/dmub_cmd.h:2921:12: warning: variable 'temp' set but not used [-Wunused-but-set-variable]
2921 | uint64_t temp;
| ^~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c: At top level:
>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c:488:6: warning: no previous prototype for 'dcn316_clk_mgr_helper_populate_bw_params' [-Wmissing-prototypes]
488 | void dcn316_clk_mgr_helper_populate_bw_params(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/core_types.h:32,
from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/resource.h:28,
from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/clk_mgr_internal.h:36,
from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c:29:
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:127:22: warning: 'SYNAPTICS_DEVICE_ID' defined but not used [-Wunused-const-variable=]
127 | static const uint8_t SYNAPTICS_DEVICE_ID[] = "SYNA";
| ^~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:124:22: warning: 'DP_SINK_DEVICE_STR_ID_2' defined but not used [-Wunused-const-variable=]
124 | static const uint8_t DP_SINK_DEVICE_STR_ID_2[] = {7, 1, 8, 7, 5, 0};
| ^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:123:22: warning: 'DP_SINK_DEVICE_STR_ID_1' defined but not used [-Wunused-const-variable=]
123 | static const uint8_t DP_SINK_DEVICE_STR_ID_1[] = {7, 1, 8, 7, 3, 0};
| ^~~~~~~~~~~~~~~~~~~~~~~


vim +/dcn316_smu_send_msg_with_param +114 drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_smu.c

113
> 114 int dcn316_smu_send_msg_with_param(
115 struct clk_mgr_internal *clk_mgr,
116 unsigned int msg_id, unsigned int param)
117 {
118 uint32_t result;
119
120 result = dcn316_smu_wait_for_response(clk_mgr, 10, 200000);
121 ASSERT(result == VBIOSSMC_Result_OK);
122
123 if (result == VBIOSSMC_Status_BUSY) {
124 return -1;
125 }
126
127 /* First clear response register */
128 REG_WRITE(MP1_SMN_C2PMSG_91, VBIOSSMC_Status_BUSY);
129
130 /* Set the parameter register for the SMU message, unit is Mhz */
131 REG_WRITE(MP1_SMN_C2PMSG_83, param);
132
133 /* Trigger the message transaction by writing the message ID */
134 REG_WRITE(MP1_SMN_C2PMSG_67, msg_id);
135
136 result = dcn316_smu_wait_for_response(clk_mgr, 10, 200000);
137
138 if (result == VBIOSSMC_Status_BUSY) {
139 ASSERT(0);
140 dm_helpers_smu_timeout(CTX, msg_id, param, 10 * 200000);
141 }
142
143 return REG_READ(MP1_SMN_C2PMSG_83);
144 }
145
146 int dcn316_smu_get_smu_version(struct clk_mgr_internal *clk_mgr)
147 {
148 return dcn316_smu_send_msg_with_param(
149 clk_mgr,
150 VBIOSSMC_MSG_GetPmfwVersion,
151 0);
152 }
153
154
155 int dcn316_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz)
156 {
157 int actual_dispclk_set_mhz = -1;
158
159 if (!clk_mgr->smu_present)
160 return requested_dispclk_khz;
161
162 /* Unit of SMU msg parameter is Mhz */
163 actual_dispclk_set_mhz = dcn316_smu_send_msg_with_param(
164 clk_mgr,
165 VBIOSSMC_MSG_SetDispclkFreq,
166 khz_to_mhz_ceil(requested_dispclk_khz));
167
168 return actual_dispclk_set_mhz * 1000;
169 }
170
> 171 int dcn316_smu_set_voltage_via_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phyclk_khz)
172 {
173 int actual_phypclk_set_mhz = -1;
174
175 if (!clk_mgr->smu_present && requested_phyclk_khz)
176 return requested_phyclk_khz;
177
178 /* Unit of SMU msg parameter is Mhz */
179 actual_phypclk_set_mhz = dcn316_smu_send_msg_with_param(
180 clk_mgr,
181 VBIOSSMC_MSG_SetPhyclkVoltageByFreq,
182 khz_to_mhz_ceil(requested_phyclk_khz));
183
184 return actual_phypclk_set_mhz * 1000;
185 }
186

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