Commit 0d8928a9 authored by Rodrigo Siqueira's avatar Rodrigo Siqueira Committed by Alex Deucher
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drm/amd/display: Fix __umoddi3 undefined for 32 bit compilation 



While we tried to build amdgpu on i386, we got this error:

ERROR: modpost: "__umoddi3" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!

This commit fixes this issue by replacing the standard module operator
with div_u64_rem.

Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Fixes: d3dfceb5 ("drm/amd/display: Add dependant changes for DCN32/321")
Reported-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Acked-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3db7f894

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

+3 −1
Original line number Diff line number Diff line
@@ -208,12 +208,14 @@ static uint32_t dcn32_cache_lines_for_surface(struct dc *dc, uint32_t surface_si 
	uint32_t num_cached_bytes = 0;

	uint32_t remaining_size = 0;

	uint32_t cache_line_size = dc->caps.cache_line_size;

	uint32_t remainder = 0;



	/* 1. Calculate surface size minus the number of bytes stored

	 * in the first cache line (all bytes in first cache line might

	 * not be fully used).

	 */

	num_cached_bytes = cache_line_size - (start_address % cache_line_size);

	div_u64_rem(start_address, cache_line_size, &remainder);

	num_cached_bytes = cache_line_size - remainder;

	remaining_size = surface_size - num_cached_bytes;



	/* 2. Calculate number of cache lines that will be fully used with