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drm/amd/display: Add check for granularity in dml ceil/floor helpers

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[Why]
Wrapper functions for dcn_bw_ceil2() and dcn_bw_floor2()
should check for granularity is non zero to avoid assert and
divide-by-zero error in dcn_bw_ functions.

[How]
Add check for granularity 0.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Roman Li <Roman.Li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f6e09701c3)
Cc: stable@vger.kernel.org
This commit is contained in:
Roman Li 2024-12-13 13:51:07 -05:00 committed by Alex Deucher
parent 9738609449
commit 0881fbc4fd
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h
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@ -66,11 +66,15 @@ static inline double dml_max5(double a, double b, double c, double d, double e)
static inline double dml_ceil(double a, double granularity)
{
if (granularity == 0)
return 0;
return (double) dcn_bw_ceil2(a, granularity);
}
static inline double dml_floor(double a, double granularity)
{
if (granularity == 0)
return 0;
return (double) dcn_bw_floor2(a, granularity);
}
@ -114,11 +118,15 @@ static inline double dml_ceil_2(double f)
static inline double dml_ceil_ex(double x, double granularity)
{
if (granularity == 0)
return 0;
return (double) dcn_bw_ceil2(x, granularity);
}
static inline double dml_floor_ex(double x, double granularity)
{
if (granularity == 0)
return 0;
return (double) dcn_bw_floor2(x, granularity);
}