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drm/i915: Introduce intel_dumb_fb_max_stride()

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Wrap intel_plane_fb_max_stride() in intel_dumb_fb_max_stride()
for the purposes of dumb fb creation. I want to change
intel_plane_fb_max_stride() to take a 'struct drm_format_info'
instead of the 'u32 pixel_format' so we need an excplicit format
info lookup in the dumb fb path and I don't really want to have
that in i915_gem_dumb_create() directly.

This makes intel_plane_fb_max_stride() internal to the display
code again, and thus we can pass in struct intel_display instead
of struct drm_device.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251107181126.5743-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2025-11-07 20:11:18 +02:00
parent 1e396bbf13
commit 854efdc7ef
4 changed files with 19 additions and 10 deletions
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17
drivers/gpu/drm/i915/display/intel_display.c
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@@ -547,16 +547,12 @@ void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state)
intel_wait_for_pipe_off(old_crtc_state);
}
u32 intel_plane_fb_max_stride(struct drm_device *drm,
u32 intel_plane_fb_max_stride(struct intel_display *display,
u32 pixel_format, u64 modifier)
{
struct intel_display *display = to_intel_display(drm);
struct intel_crtc *crtc;
struct intel_plane *plane;
if (!HAS_DISPLAY(display))
return 0;
/*
* We assume the primary plane for pipe A has
* the highest stride limits of them all,
@@ -572,6 +568,17 @@ u32 intel_plane_fb_max_stride(struct drm_device *drm,
DRM_MODE_ROTATE_0);
}
u32 intel_dumb_fb_max_stride(struct drm_device *drm,
u32 pixel_format, u64 modifier)
{
struct intel_display *display = to_intel_display(drm);
if (!HAS_DISPLAY(display))
return 0;
return intel_plane_fb_max_stride(display, pixel_format, modifier);
}
void intel_set_plane_visible(struct intel_crtc_state *crtc_state,
struct intel_plane_state *plane_state,
bool visible)