Thanks. On 27 August 2013 08:14, Inki Dae <inki.dae@xxxxxxxxxxx> wrote: > 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 > -- Thanks and Regards Vikas Sajjan -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
 |