Applied. Thanks, Inki Dae > -----Original Message----- > From: Vikas Sajjan [mailto:vikas.sajjan@xxxxxxxxxx] > Sent: Friday, August 23, 2013 3:35 PM > To: dri-devel@xxxxxxxxxxxxxxxxxxxxx; inki.dae@xxxxxxxxxxx > Cc: kgene.kim@xxxxxxxxxxx; s.nawrocki@xxxxxxxxxxx; robdclark@xxxxxxxxx; > tomasz.figa@xxxxxxxxx; laurent.pinchart@xxxxxxxxxxxxxxxx; > patches@xxxxxxxxxx; linaro-dev@xxxxxxxxxxxxxxxx > Subject: [PATCH] drm/exynos: Add fallback option to get non physically > contiguous memory for gem_dumb_create > > To address the case where physically contiguous memory MAY NOT be a > mandatory > requirement for framebuffer for the application calling > exynos_drm_gem_dumb_create, > the patch adds a feature to get non physically contiguous memory for > framebuffer, > if physically contiguous memory allocation fails and if IOMMU is supported. > > Signed-off-by: Vikas Sajjan <vikas.sajjan@xxxxxxxxxx> > Signed-off-by: Arun Kumar <arun.kk@xxxxxxxxxxx> > --- > drivers/gpu/drm/exynos/exynos_drm_gem.c | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c > b/drivers/gpu/drm/exynos/exynos_drm_gem.c > index 2eabe1a..66d1b40 100644 > --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c > +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c > @@ -17,6 +17,7 @@ > #include "exynos_drm_drv.h" > #include "exynos_drm_gem.h" > #include "exynos_drm_buf.h" > +#include "exynos_drm_iommu.h" > > static unsigned int convert_to_vm_err_msg(int msg) > { > @@ -666,6 +667,18 @@ int exynos_drm_gem_dumb_create(struct drm_file > *file_priv, > > exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG | > EXYNOS_BO_WC, args->size); > + /* > + * If physically contiguous memory allocation fails and if IOMMU is > + * supported then try to get buffer from non physically contiguous > + * memory area. > + */ > + if (IS_ERR(exynos_gem_obj) && is_drm_iommu_supported(dev)) { > + dev_warn(dev->dev, "contiguous FB allocation failed, falling > back to non-contiguous\n"); > + exynos_gem_obj = exynos_drm_gem_create(dev, > + EXYNOS_BO_NONCONTIG | EXYNOS_BO_WC, > + args->size); > + } > + > if (IS_ERR(exynos_gem_obj)) > return PTR_ERR(exynos_gem_obj); > > -- > 1.7.9.5 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
