Commit ddb78a51 authored Apr 04, 2023 by Nirmoy Das

drm/i915/display: Set I915_BO_ALLOC_USER for fb



Framebuffer is exposed to userspace so make sure we set
proper flags for it. Set I915_BO_PREALLOC for prealloced
fb so that ttm won't clear existing data.

Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Andi Shyti <andi.shyti@linux.intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230404143100.10452-2-nirmoy.das@intel.com

parent ddb24fc5

drivers/gpu/drm/i915/display/intel_fbdev.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -163,7 +163,8 @@ static int intelfb_alloc(struct drm_fb_helper *helper,
		obj = ERR_PTR(-ENODEV);
		if (HAS_LMEM(dev_priv)) {
		obj = i915_gem_object_create_lmem(dev_priv, size,
		I915_BO_ALLOC_CONTIGUOUS);
		I915_BO_ALLOC_CONTIGUOUS \|
		I915_BO_ALLOC_USER);
		} else {
		/*
		* If the FB is too big, just don't use it since fbdev is not very

drivers/gpu/drm/i915/display/intel_plane_initial.c

+3 −1

Original line number	Diff line number	Diff line
		@@ -110,7 +110,9 @@ initial_plane_vma(struct drm_i915_private *i915,
		size * 2 > i915->stolen_usable_size)
		return NULL;

		obj = i915_gem_object_create_region_at(mem, phys_base, size, 0);
		obj = i915_gem_object_create_region_at(mem, phys_base, size,
		I915_BO_ALLOC_USER \|
		I915_BO_PREALLOC);
		if (IS_ERR(obj))
		return NULL;