[PATCH 6.6.y] drm/amd/display: Wrap dcn32_override_min_req_memclk() in DC_FP_{START, END}

[Sasha Levin <sashal@kernel.org>]

From: Xi Ruoyao <xry111@xry111.site>

[ Upstream commit ebe82c6e75cfc547154d0fd843b0dd6cca3d548f ]

[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
[ dropped missing `dcn32_override_min_req_dcfclk()` call since ]
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
index f98f35ac68c01..ddc0a444a0545 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource.c
@@ -1872,7 +1872,9 @@ bool dcn32_validate_bandwidth(struct dc *dc,
 
 	dc->res_pool->funcs->calculate_wm_and_dlg(dc, context, pipes, pipe_cnt, vlevel);
 
+	DC_FP_START();
 	dcn32_override_min_req_memclk(dc, context);
+	DC_FP_END();
 
 	BW_VAL_TRACE_END_WATERMARKS();
 
-- 
2.51.0