Prepare a common function for size and scale checks and call it for
source and destination buffers. Then also move there the state-less checks
from exynos_drm_ipp_task_setup_buffer, so the format information is already
available in limits processing. Finally perform the IPP_LIMIT_BUFFER check
on the real width of the buffer (the width calculated from the provided
buffer pitch).
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/gpu/drm/exynos/exynos_drm_ipp.c | 108 +++++++++++++-----------
1 file changed, 57 insertions(+), 51 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_ipp.c b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
index 26374e58c557..8840e6ec8e43 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_ipp.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_ipp.c
@@ -345,27 +345,6 @@ static int exynos_drm_ipp_task_setup_buffer(struct exynos_drm_ipp_buffer *buf,
int ret = 0;
int i;
- /* basic checks */
- if (buf->buf.width == 0 || buf->buf.height == 0)
- return -EINVAL;
- buf->format = drm_format_info(buf->buf.fourcc);
- for (i = 0; i < buf->format->num_planes; i++) {
- unsigned int width = (i == 0) ? buf->buf.width :
- DIV_ROUND_UP(buf->buf.width, buf->format->hsub);
-
- if (buf->buf.pitch[i] == 0)
- buf->buf.pitch[i] = width * buf->format->cpp[i];
- if (buf->buf.pitch[i] < width * buf->format->cpp[i])
- return -EINVAL;
- if (!buf->buf.gem_id[i])
- return -ENOENT;
- }
-
- /* pitch for additional planes must match */
- if (buf->format->num_planes > 2 &&
- buf->buf.pitch[1] != buf->buf.pitch[2])
- return -EINVAL;
-
/* get GEM buffers and check their size */
for (i = 0; i < buf->format->num_planes; i++) {
unsigned int height = (i == 0) ? buf->buf.height :
@@ -495,12 +474,13 @@ static int exynos_drm_ipp_check_size_limits(struct exynos_drm_ipp_buffer *buf,
enum drm_ipp_size_id id = rotate ? IPP_LIMIT_ROTATED : IPP_LIMIT_AREA;
struct drm_ipp_limit l;
struct drm_exynos_ipp_limit_val *lh = &l.h, *lv = &l.v;
+ int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
if (!limits)
return 0;
__get_size_limit(limits, num_limits, IPP_LIMIT_BUFFER, &l);
- if (!__size_limit_check(buf->buf.width, &l.h) ||
+ if (!__size_limit_check(real_width, &l.h) ||
!__size_limit_check(buf->buf.height, &l.v))
return -EINVAL;
@@ -560,10 +540,62 @@ static int exynos_drm_ipp_check_scale_limits(
return 0;
}
+static int exynos_drm_ipp_check_format(struct exynos_drm_ipp_task *task,
+ struct exynos_drm_ipp_buffer *buf,
+ struct exynos_drm_ipp_buffer *src,
+ struct exynos_drm_ipp_buffer *dst,
+ bool rotate, bool swap)
+{
+ const struct exynos_drm_ipp_formats *fmt;
+ int ret, i;
+
+ fmt = __ipp_format_get(task->ipp, buf->buf.fourcc, buf->buf.modifier,
+ buf == src ? DRM_EXYNOS_IPP_FORMAT_SOURCE :
+ DRM_EXYNOS_IPP_FORMAT_DESTINATION);
+ if (!fmt) {
+ DRM_DEBUG_DRIVER("Task %pK: %s format not supported\n", task,
+ buf == src ? "src" : "dst");
+ return -EINVAL;
+ }
+
+ /* basic checks */
+ if (buf->buf.width == 0 || buf->buf.height == 0)
+ return -EINVAL;
+
+ buf->format = drm_format_info(buf->buf.fourcc);
+ for (i = 0; i < buf->format->num_planes; i++) {
+ unsigned int width = (i == 0) ? buf->buf.width :
+ DIV_ROUND_UP(buf->buf.width, buf->format->hsub);
+
+ if (buf->buf.pitch[i] == 0)
+ buf->buf.pitch[i] = width * buf->format->cpp[i];
+ if (buf->buf.pitch[i] < width * buf->format->cpp[i])
+ return -EINVAL;
+ if (!buf->buf.gem_id[i])
+ return -ENOENT;
+ }
+
+ /* pitch for additional planes must match */
+ if (buf->format->num_planes > 2 &&
+ buf->buf.pitch[1] != buf->buf.pitch[2])
+ return -EINVAL;
+
+ /* check driver limits */
+ ret = exynos_drm_ipp_check_size_limits(buf, fmt->limits,
+ fmt->num_limits,
+ rotate,
+ buf == dst ? swap : false);
+ if (ret)
+ return ret;
+ ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
+ fmt->limits,
+ fmt->num_limits, swap);
+ return ret;
+}
+
static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task)
{
struct exynos_drm_ipp *ipp = task->ipp;
- const struct exynos_drm_ipp_formats *src_fmt, *dst_fmt;
struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst;
unsigned int rotation = task->transform.rotation;
int ret = 0;
@@ -607,37 +639,11 @@ static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task)
return -EINVAL;
}
- src_fmt = __ipp_format_get(ipp, src->buf.fourcc, src->buf.modifier,
- DRM_EXYNOS_IPP_FORMAT_SOURCE);
- if (!src_fmt) {
- DRM_DEBUG_DRIVER("Task %pK: src format not supported\n", task);
- return -EINVAL;
- }
- ret = exynos_drm_ipp_check_size_limits(src, src_fmt->limits,
- src_fmt->num_limits,
- rotate, false);
- if (ret)
- return ret;
- ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
- src_fmt->limits,
- src_fmt->num_limits, swap);
+ ret = exynos_drm_ipp_check_format(task, src, src, dst, rotate, swap);
if (ret)
return ret;
- dst_fmt = __ipp_format_get(ipp, dst->buf.fourcc, dst->buf.modifier,
- DRM_EXYNOS_IPP_FORMAT_DESTINATION);
- if (!dst_fmt) {
- DRM_DEBUG_DRIVER("Task %pK: dst format not supported\n", task);
- return -EINVAL;
- }
- ret = exynos_drm_ipp_check_size_limits(dst, dst_fmt->limits,
- dst_fmt->num_limits,
- false, swap);
- if (ret)
- return ret;
- ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
- dst_fmt->limits,
- dst_fmt->num_limits, swap);
+ ret = exynos_drm_ipp_check_format(task, dst, src, dst, false, swap);
if (ret)
return ret;
--
2.17.1
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