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drm/exynos: ipp: Rework checking for the correct buffer formats

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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@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Marek Szyprowski 2018-06-07 13:06:06 +02:00 committed by Inki Dae
parent 2d8aa4ef6a
commit 69705ad210
1 changed files with 57 additions and 51 deletions
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108
drivers/gpu/drm/exynos/exynos_drm_ipp.c
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@ -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;