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);
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. */
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 */