Re: [PATCH] drm: amd: dc: don't use FP math when Kcov is enabled

[Arnd Bergmann]

On Tue, Dec 5, 2017 at 6:01 PM, Harry Wentland  wrote:
>>
>
> Thanks, Arnd. This is what I was missing. I'll take another look.
>
> It would still work without KCOV, although I agree that's not ideal by any 
> means.

Any update on this? I see building DCN1.0 with KCOV using gcc-8 is still broken.

   Arnd
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Re: [PATCH] drm: amd: dc: don't use FP math when Kcov is enabled

[Harry Wentland]

On 2017-12-05 07:05 AM, Arnd Bergmann wrote:
> On Mon, Dec 4, 2017 at 9:34 PM, Harry Wentland  wrote:
>> On 2017-12-04 08:08 AM, Arnd Bergmann wrote:
>>> Building the DCN 1.0 Raven display driver with CONFIG_KCOV_INSTRUMENT_ALL=y
>>> and CONFIG_KCOV_ENABLE_COMPARISONS=y results in warnings about many 
>>> functions
>>> that do a comparison of floating-point variables:
>>>
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>>> `dcn_bw_calc_rq_dlg_ttu':
>>> dcn_calcs.c:(.text+0x263): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>>> `hack_force_pipe_split':
>>> dcn_calcs.c:(.text+0x155b): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>>> `dcn_find_dcfclk_suits_all':
>>> dcn_calcs.c:(.text+0x190e): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>>> `dcn_validate_bandwidth':
>>> dcn_calcs.c:(.text+0xe121): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_mod':
>>> dcn_calc_math.c:(.text+0x22): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_min2':
>>> dcn_calc_math.c:(.text+0xb2): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_ceil2':
>>> dcn_calc_math.c:(.text+0x2a0): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_max3':
>>> dcn_calc_math.c:(.text+0x325): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_max5':
>>> dcn_calc_math.c:(.text+0x3c3): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>>> `dcn_bw_log':
>>> dcn_calc_math.c:(.text+0x54e): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> dcn_calc_math.c:(.text+0x57c): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `scaler_settings_calculation':
>>> dcn_calc_auto.c:(.text+0x5c5): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `mode_support_and_system_configuration':
>>> dcn_calc_auto.c:(.text+0x137c): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `mode_support_and_system_configuration':
>>> dcn_calc_auto.c:(.text+0x9233): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `mode_support_and_system_configuration':
>>> dcn_calc_auto.c:(.text+0xb70f): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `mode_support_and_system_configuration':
>>> dcn_calc_auto.c:(.text+0x121fd): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `display_pipe_configuration':
>>> dcn_calc_auto.c:(.text+0x15a2f): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>>> dcn_calc_auto.c:(.text+0x17c2d): undefined reference to 
>>> `__sanitizer_cov_trace_cmpf'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>>> dcn_calc_auto.c:(.text+0x19362): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>>> dcn_calc_auto.c:(.text+0x25575): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>>> dcn_calc_auto.c:(.text+0x27f33): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
>>> `get_refcyc_per_delivery':
>>> display_rq_dlg_calc.c:(.text+0xb5): undefined reference to 
>>> `__sanitizer_cov_trace_cmpd'
>>> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
>>> `calculate_ttu_cursor.isra.1':
>>> display_rq_dlg_calc.c:(.text+0x9f6): undefined reference to 
>>> 

Re: [PATCH] drm: amd: dc: don't use FP math when Kcov is enabled

[Arnd Bergmann]

On Mon, Dec 4, 2017 at 9:34 PM, Harry Wentland  wrote:
> On 2017-12-04 08:08 AM, Arnd Bergmann wrote:
>> Building the DCN 1.0 Raven display driver with CONFIG_KCOV_INSTRUMENT_ALL=y
>> and CONFIG_KCOV_ENABLE_COMPARISONS=y results in warnings about many functions
>> that do a comparison of floating-point variables:
>>
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>> `dcn_bw_calc_rq_dlg_ttu':
>> dcn_calcs.c:(.text+0x263): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>> `hack_force_pipe_split':
>> dcn_calcs.c:(.text+0x155b): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>> `dcn_find_dcfclk_suits_all':
>> dcn_calcs.c:(.text+0x190e): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
>> `dcn_validate_bandwidth':
>> dcn_calcs.c:(.text+0xe121): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_mod':
>> dcn_calc_math.c:(.text+0x22): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_min2':
>> dcn_calc_math.c:(.text+0xb2): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_ceil2':
>> dcn_calc_math.c:(.text+0x2a0): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_max3':
>> dcn_calc_math.c:(.text+0x325): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_max5':
>> dcn_calc_math.c:(.text+0x3c3): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
>> `dcn_bw_log':
>> dcn_calc_math.c:(.text+0x54e): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> dcn_calc_math.c:(.text+0x57c): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `scaler_settings_calculation':
>> dcn_calc_auto.c:(.text+0x5c5): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `mode_support_and_system_configuration':
>> dcn_calc_auto.c:(.text+0x137c): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `mode_support_and_system_configuration':
>> dcn_calc_auto.c:(.text+0x9233): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `mode_support_and_system_configuration':
>> dcn_calc_auto.c:(.text+0xb70f): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `mode_support_and_system_configuration':
>> dcn_calc_auto.c:(.text+0x121fd): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `display_pipe_configuration':
>> dcn_calc_auto.c:(.text+0x15a2f): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>> dcn_calc_auto.c:(.text+0x17c2d): undefined reference to 
>> `__sanitizer_cov_trace_cmpf'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>> dcn_calc_auto.c:(.text+0x19362): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>> dcn_calc_auto.c:(.text+0x25575): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
>> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
>> dcn_calc_auto.c:(.text+0x27f33): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
>> `get_refcyc_per_delivery':
>> display_rq_dlg_calc.c:(.text+0xb5): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
>> `calculate_ttu_cursor.isra.1':
>> display_rq_dlg_calc.c:(.text+0x9f6): undefined reference to 
>> `__sanitizer_cov_trace_cmpd'
>> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
>> `dml_rq_dlg_get_dlg_params':
>> 

Re: [PATCH] drm: amd: dc: don't use FP math when Kcov is enabled

[Harry Wentland]

On 2017-12-04 08:08 AM, Arnd Bergmann wrote:
> Building the DCN 1.0 Raven display driver with CONFIG_KCOV_INSTRUMENT_ALL=y
> and CONFIG_KCOV_ENABLE_COMPARISONS=y results in warnings about many functions
> that do a comparison of floating-point variables:
> 
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
> `dcn_bw_calc_rq_dlg_ttu':
> dcn_calcs.c:(.text+0x263): undefined reference to `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
> `hack_force_pipe_split':
> dcn_calcs.c:(.text+0x155b): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
> `dcn_find_dcfclk_suits_all':
> dcn_calcs.c:(.text+0x190e): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
> `dcn_validate_bandwidth':
> dcn_calcs.c:(.text+0xe121): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_mod':
> dcn_calc_math.c:(.text+0x22): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_min2':
> dcn_calc_math.c:(.text+0xb2): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_ceil2':
> dcn_calc_math.c:(.text+0x2a0): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_max3':
> dcn_calc_math.c:(.text+0x325): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_max5':
> dcn_calc_math.c:(.text+0x3c3): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
> `dcn_bw_log':
> dcn_calc_math.c:(.text+0x54e): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> dcn_calc_math.c:(.text+0x57c): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `scaler_settings_calculation':
> dcn_calc_auto.c:(.text+0x5c5): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `mode_support_and_system_configuration':
> dcn_calc_auto.c:(.text+0x137c): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `mode_support_and_system_configuration':
> dcn_calc_auto.c:(.text+0x9233): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `mode_support_and_system_configuration':
> dcn_calc_auto.c:(.text+0xb70f): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `mode_support_and_system_configuration':
> dcn_calc_auto.c:(.text+0x121fd): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `display_pipe_configuration':
> dcn_calc_auto.c:(.text+0x15a2f): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
> dcn_calc_auto.c:(.text+0x17c2d): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
> dcn_calc_auto.c:(.text+0x19362): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
> dcn_calc_auto.c:(.text+0x25575): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
> `dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
> dcn_calc_auto.c:(.text+0x27f33): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
> `get_refcyc_per_delivery':
> display_rq_dlg_calc.c:(.text+0xb5): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
> `calculate_ttu_cursor.isra.1':
> display_rq_dlg_calc.c:(.text+0x9f6): undefined reference to 
> `__sanitizer_cov_trace_cmpd'
> drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
> `dml_rq_dlg_get_dlg_params':
> display_rq_dlg_calc.c:(.text+0x82cc): undefined reference to 
> `__sanitizer_cov_trace_cmpf'
> drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.o: In function 
> 

[PATCH] drm: amd: dc: don't use FP math when Kcov is enabled

[Arnd Bergmann]

Building the DCN 1.0 Raven display driver with CONFIG_KCOV_INSTRUMENT_ALL=y
and CONFIG_KCOV_ENABLE_COMPARISONS=y results in warnings about many functions
that do a comparison of floating-point variables:

drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
`dcn_bw_calc_rq_dlg_ttu':
dcn_calcs.c:(.text+0x263): undefined reference to `__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
`hack_force_pipe_split':
dcn_calcs.c:(.text+0x155b): undefined reference to `__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
`dcn_find_dcfclk_suits_all':
dcn_calcs.c:(.text+0x190e): undefined reference to `__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calcs.o: In function 
`dcn_validate_bandwidth':
dcn_calcs.c:(.text+0xe121): undefined reference to `__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function `dcn_bw_mod':
dcn_calc_math.c:(.text+0x22): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function `dcn_bw_min2':
dcn_calc_math.c:(.text+0xb2): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function 
`dcn_bw_ceil2':
dcn_calc_math.c:(.text+0x2a0): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function `dcn_bw_max3':
dcn_calc_math.c:(.text+0x325): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function `dcn_bw_max5':
dcn_calc_math.c:(.text+0x3c3): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_math.o: In function `dcn_bw_log':
dcn_calc_math.c:(.text+0x54e): undefined reference to 
`__sanitizer_cov_trace_cmpd'
dcn_calc_math.c:(.text+0x57c): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`scaler_settings_calculation':
dcn_calc_auto.c:(.text+0x5c5): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`mode_support_and_system_configuration':
dcn_calc_auto.c:(.text+0x137c): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`mode_support_and_system_configuration':
dcn_calc_auto.c:(.text+0x9233): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`mode_support_and_system_configuration':
dcn_calc_auto.c:(.text+0xb70f): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`mode_support_and_system_configuration':
dcn_calc_auto.c:(.text+0x121fd): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`display_pipe_configuration':
dcn_calc_auto.c:(.text+0x15a2f): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
dcn_calc_auto.c:(.text+0x17c2d): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
dcn_calc_auto.c:(.text+0x19362): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
dcn_calc_auto.c:(.text+0x25575): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/calcs/dcn_calc_auto.o: In function 
`dispclkdppclkdcfclk_deep_sleep_prefetch_parameters_watermarks_and_performance_calculation':
dcn_calc_auto.c:(.text+0x27f33): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
`get_refcyc_per_delivery':
display_rq_dlg_calc.c:(.text+0xb5): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
`calculate_ttu_cursor.isra.1':
display_rq_dlg_calc.c:(.text+0x9f6): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/dml/display_rq_dlg_calc.o: In function 
`dml_rq_dlg_get_dlg_params':
display_rq_dlg_calc.c:(.text+0x82cc): undefined reference to 
`__sanitizer_cov_trace_cmpf'
drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.o: In function 
`get_refcyc_per_delivery.isra.0':
dml1_display_rq_dlg_calc.c:(.text+0x6c4): undefined reference to 
`__sanitizer_cov_trace_cmpd'
drivers/gpu/drm/amd/display/dc/dml/dml1_display_rq_dlg_calc.o: In function 
`get_vratio_pre.isra.2':
dml1_display_rq_dlg_calc.c:(.text+0x957):