diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_fbdev.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index e12ea90c6237..84f8dfe1c5ec 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -79,9 +79,9 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, struct drm_framebuffer *fb) { struct fb_info *fbi = helper->fbdev; - struct drm_device *dev = helper->dev; struct exynos_drm_gem_buf *buffer; unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3); + unsigned int nr_pages; unsigned long offset; drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth); @@ -94,25 +94,14 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper, return -EFAULT; } - /* map pages with kernel virtual space. */ + nr_pages = buffer->size >> PAGE_SHIFT; + + buffer->kvaddr = (void __iomem *) vmap(buffer->pages, + nr_pages, VM_MAP, + pgprot_writecombine(PAGE_KERNEL)); if (!buffer->kvaddr) { - if (is_drm_iommu_supported(dev)) { - unsigned int nr_pages = buffer->size >> PAGE_SHIFT; - - buffer->kvaddr = (void __iomem *) vmap(buffer->pages, - nr_pages, VM_MAP, - pgprot_writecombine(PAGE_KERNEL)); - } else { - phys_addr_t dma_addr = buffer->dma_addr; - if (dma_addr) - buffer->kvaddr = (void __iomem *)phys_to_virt(dma_addr); - else - buffer->kvaddr = (void __iomem *)NULL; - } - if (!buffer->kvaddr) { - DRM_ERROR("failed to map pages to kernel space.\n"); - return -EIO; - } + DRM_ERROR("failed to map pages to kernel space.\n"); + return -EIO; } /* buffer count to framebuffer always is 1 at booting time. */ @@ -313,7 +302,7 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev, struct exynos_drm_gem_obj *exynos_gem_obj = exynos_fbd->exynos_gem_obj; struct drm_framebuffer *fb; - if (is_drm_iommu_supported(dev) && exynos_gem_obj->buffer->kvaddr) + if (exynos_gem_obj->buffer->kvaddr) vunmap(exynos_gem_obj->buffer->kvaddr); /* release drm framebuffer and real buffer */ |