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drm/amd/display: Wrap dcn32_override_min_req_memclk() in DC_FP_{START, END}

[Why]
The dcn32_override_min_req_memclk function is in dcn32_fpu.c, which is
compiled with CC_FLAGS_FPU into FP instructions. So when we call it we
must use DC_FP_{START,END} to save and restore the FP context, and
prepare the FP unit on architectures like LoongArch where the FP unit
isn't always on.

Reported-by: LiarOnce <liaronce@hotmail.com>
Fixes: ee7be8f3de1c ("drm/amd/display: Limit DCN32 8 channel or less parts to DPM1 for FPO")
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 25bb1d54ba3983c064361033a8ec15474fece37e)
Cc: stable@vger.kernel.org

authored by

Xi Ruoyao and committed by
Alex Deucher ebe82c6e 10718159

+3
+3
drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c
··· 1785 1785 1786 1786 dc->res_pool->funcs->calculate_wm_and_dlg(dc, context, pipes, pipe_cnt, vlevel); 1787 1787 1788 + DC_FP_START(); 1788 1789 dcn32_override_min_req_memclk(dc, context); 1790 + DC_FP_END(); 1791 + 1789 1792 dcn32_override_min_req_dcfclk(dc, context); 1790 1793 1791 1794 BW_VAL_TRACE_END_WATERMARKS();