diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-05-28 21:56:46 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2024-05-31 13:43:56 +0300 |
| commit | d3e80f2dcf8c2aae09eca6b394eb253505e37dda (patch) | |
| tree | 73318de254fe722415bd00aa2c480921cc85c83d /drivers/gpu/drm/i915/display/intel_crtc.c | |
| parent | 5b7f65acf1b083868e0fa9bf0617168794c201ff (diff) | |
drm/i915: Switch intel_usecs_to_scanlines() to 64bit maths
Dotclocks can reach ~1GHz these days, so intel_usecs_to_scanlines(),
with its 32bit maths, is currently limited to a few milliseconds.
I want bigger numbers in DSB selftests, so switch over to 64bit
maths.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240528185647.7765-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_crtc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c index bf6e74e99f5c..54b529bfc935 100644 --- a/drivers/gpu/drm/i915/display/intel_crtc.c +++ b/drivers/gpu/drm/i915/display/intel_crtc.c @@ -454,8 +454,8 @@ int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode, if (!adjusted_mode->crtc_htotal) return 1; - return DIV_ROUND_UP(usecs * adjusted_mode->crtc_clock, - 1000 * adjusted_mode->crtc_htotal); + return DIV_ROUND_UP_ULL(mul_u32_u32(usecs, adjusted_mode->crtc_clock), + 1000 * adjusted_mode->crtc_htotal); } /** |