diff options
author | Vikas Sajjan <vikas.sajjan@linaro.org> | 2013-08-06 07:52:04 -0400 |
---|---|---|
committer | Inki Dae <inki.dae@samsung.com> | 2013-09-05 00:43:42 -0400 |
commit | a1bfacf4006a3bb410b0fa85e203f9249d2d35e9 (patch) | |
tree | f2ed42c25ddaa50d61dd4675c23f9e7577e49231 | |
parent | 3b28802e37bb1ca1cab584f679c42e72a7e384f8 (diff) |
drm/exynos: Add fallback option to get non physically contiguous memory for fb
While trying to get boot-logo up on exynos5420 SMDK which has eDP panel
connected with resolution 2560x1600, following error occured even with
IOMMU enabled:
[0.880000] [drm:lowlevel_buffer_allocate] *ERROR* failed to allocate buffer.
[0.890000] [drm] Initialized exynos 1.0.0 20110530 on minor 0
To address the cases where physically contiguous memory MAY NOT be a
mandatory requirement for fb, the patch adds a feature to get non physically
contiguous memory for fb if physically contiguous memory allocation fails
and if IOMMU is supported.
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Arun Kumar <arun.kk@samsung.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 8e60bd61137f..f82a1d4a0fcb 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c | |||
@@ -16,6 +16,7 @@ | |||
16 | #include <drm/drm_crtc.h> | 16 | #include <drm/drm_crtc.h> |
17 | #include <drm/drm_fb_helper.h> | 17 | #include <drm/drm_fb_helper.h> |
18 | #include <drm/drm_crtc_helper.h> | 18 | #include <drm/drm_crtc_helper.h> |
19 | #include <drm/exynos_drm.h> | ||
19 | 20 | ||
20 | #include "exynos_drm_drv.h" | 21 | #include "exynos_drm_drv.h" |
21 | #include "exynos_drm_fb.h" | 22 | #include "exynos_drm_fb.h" |
@@ -165,8 +166,18 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper, | |||
165 | 166 | ||
166 | size = mode_cmd.pitches[0] * mode_cmd.height; | 167 | size = mode_cmd.pitches[0] * mode_cmd.height; |
167 | 168 | ||
168 | /* 0 means to allocate physically continuous memory */ | 169 | exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG, size); |
169 | exynos_gem_obj = exynos_drm_gem_create(dev, 0, size); | 170 | /* |
171 | * If physically contiguous memory allocation fails and if IOMMU is | ||
172 | * supported then try to get buffer from non physically contiguous | ||
173 | * memory area. | ||
174 | */ | ||
175 | if (IS_ERR(exynos_gem_obj) && is_drm_iommu_supported(dev)) { | ||
176 | dev_warn(&pdev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n"); | ||
177 | exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG, | ||
178 | size); | ||
179 | } | ||
180 | |||
170 | if (IS_ERR(exynos_gem_obj)) { | 181 | if (IS_ERR(exynos_gem_obj)) { |
171 | ret = PTR_ERR(exynos_gem_obj); | 182 | ret = PTR_ERR(exynos_gem_obj); |
172 | goto err_release_framebuffer; | 183 | goto err_release_framebuffer; |