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| author | Inki Dae <inki.dae@samsung.com> | 2012-04-03 12:27:58 (GMT) |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2012-04-03 12:27:58 (GMT) |
| commit | dcf9af822803bcc2cd9e8009648547e6060b59a0 (patch) | |
| tree | f9c9d0d96d6685d04f46ee8190f8e3c24d95d125 /drivers/gpu/drm/exynos/exynos_drm_buf.c | |
| parent | 62fb376e214d3c1bfdf6fbb77dac162f6da04d7e (diff) | |
| download | linux-fsl-qoriq-dcf9af822803bcc2cd9e8009648547e6060b59a0.tar.xz | |
drm/exynos: fixed page align and code clean.
1M section, 64k page count also should be rounded up so this patch
rounds up them and caculates page count of them properly and also
checks memory flags from user.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_buf.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_buf.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c index 4a3a5f7..52d42cd 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_buf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c @@ -41,7 +41,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, DRM_DEBUG_KMS("%s\n", __FILE__); - if (flags & EXYNOS_BO_NONCONTIG) { + if (IS_NONCONTIG_BUFFER(flags)) { DRM_DEBUG_KMS("not support allocation type.\n"); return -EINVAL; } @@ -52,13 +52,13 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, } if (buf->size >= SZ_1M) { - npages = (buf->size >> SECTION_SHIFT) + 1; + npages = buf->size >> SECTION_SHIFT; page_size = SECTION_SIZE; } else if (buf->size >= SZ_64K) { - npages = (buf->size >> 16) + 1; + npages = buf->size >> 16; page_size = SZ_64K; } else { - npages = (buf->size >> PAGE_SHIFT) + 1; + npages = buf->size >> PAGE_SHIFT; page_size = PAGE_SIZE; } @@ -119,9 +119,6 @@ static int lowlevel_buffer_allocate(struct drm_device *dev, buf->pages[i] = phys_to_page(start_addr); - sgl = sg_next(sgl); - sg_set_page(sgl, buf->pages[i+1], end_addr - start_addr, 0); - DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n", (unsigned long)buf->kvaddr, (unsigned long)buf->dma_addr, @@ -150,7 +147,7 @@ static void lowlevel_buffer_deallocate(struct drm_device *dev, * non-continuous memory would be released by exynos * gem framework. */ - if (flags & EXYNOS_BO_NONCONTIG) { + if (IS_NONCONTIG_BUFFER(flags)) { DRM_DEBUG_KMS("not support allocation type.\n"); return; } |