On 04.04.2023 16:30, Nirmoy Das wrote:
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.a...@intel.com> Cc: Andi Shyti <andi.sh...@linux.intel.com> Cc: Andrzej Hajda <andrzej.ha...@intel.com> Cc: Ville Syrjälä <ville.syrj...@linux.intel.com> Cc: Jani Nikula <jani.nik...@intel.com> Cc: Imre Deak <imre.d...@intel.com> Signed-off-by: Nirmoy Das <nirmoy....@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.ha...@intel.com> Regards Andrzej
--- drivers/gpu/drm/i915/display/intel_fbdev.c | 3 ++- drivers/gpu/drm/i915/display/intel_plane_initial.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 673bcdfb7ff6..f7d48d00ae4b 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -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 diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c index bb6ea7de5c61..736072a8b2b0 100644 --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c @@ -110,7 +110,9 @@ initial_plane_vma(struct drm_i915_private *i915, size * 2 > i915->dsm.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;
