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drm/rockchip: debugfs: Count header size when dump a afbc buffer

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Change-Id: Id021680fac5b9010797e970fbd005ba2082a2b1b
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
This commit is contained in:
Andy Yan
2020-12-17 14:40:36 +08:00
committed by Tao Huang
parent a612c861dd
commit d1790746aa
1 changed files with 57 additions and 23 deletions
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80
drivers/gpu/drm/drm_debugfs.c
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@@ -103,49 +103,80 @@ static char *get_format_str(uint32_t format)
}
}
int vop_plane_dump(struct vop_dump_info *dump_info, int frame_count)
static int get_bpp(uint32_t format)
{
int flags;
int bits = 32;
int fd;
const char *ptr;
char file_name[100];
int width;
void *kvaddr;
mm_segment_t old_fs;
u32 format = dump_info->pixel_format;
uint32_t bpp;
switch (format) {
case DRM_FORMAT_XRGB8888:
case DRM_FORMAT_ARGB8888:
case DRM_FORMAT_XBGR8888:
case DRM_FORMAT_ABGR8888:
bits = 32;
bpp = 32;
break;
case DRM_FORMAT_RGB888:
case DRM_FORMAT_BGR888:
case DRM_FORMAT_NV24:
case DRM_FORMAT_NV24_10:
bits = 24;
bpp = 24;
break;
case DRM_FORMAT_RGB565:
case DRM_FORMAT_BGR565:
case DRM_FORMAT_NV16:
case DRM_FORMAT_NV16_10:
bits = 16;
bpp = 16;
break;
case DRM_FORMAT_NV12:
case DRM_FORMAT_NV12_10:
bits = 12;
bpp = 12;
break;
case DRM_FORMAT_YUYV:
bits = 16;
bpp = 16;
break;
default:
DRM_ERROR("unsupported format[%08x]\n", format);
return -1;
bpp = 0;
}
return bpp;
}
#define AFBC_HEADER_SIZE 16
#define AFBC_HDR_ALIGN 64
#define AFBC_SUPERBLK_PIXELS 256
#define AFBC_SUPERBLK_ALIGNMENT 128
static int get_afbc_size(uint32_t width, uint32_t height, uint32_t bpp)
{
uint32_t h_alignment = 16;
uint32_t n_blocks;
uint32_t hdr_size;
uint32_t size;
height = ALIGN(height, h_alignment);
n_blocks = width * height / AFBC_SUPERBLK_PIXELS;
hdr_size = ALIGN(n_blocks * AFBC_HEADER_SIZE, AFBC_HDR_ALIGN);
size = hdr_size + n_blocks * ALIGN(bpp * AFBC_SUPERBLK_PIXELS / 8, AFBC_SUPERBLK_ALIGNMENT);
return size;
}
int vop_plane_dump(struct vop_dump_info *dump_info, int frame_count)
{
int flags;
int bpp;
int fd;
const char *ptr;
char file_name[100];
int width;
size_t size;
void *kvaddr;
mm_segment_t old_fs;
u32 format = dump_info->pixel_format;
bpp = get_bpp(format);
if (dump_info->yuv_format) {
width = dump_info->pitches;
flags = O_RDWR | O_CREAT | O_APPEND;
@@ -163,17 +194,22 @@ int vop_plane_dump(struct vop_dump_info *dump_info, int frame_count)
}
kvaddr = vmap(dump_info->pages, dump_info->num_pages, VM_MAP,
pgprot_writecombine(PAGE_KERNEL));
if (!kvaddr)
DRM_ERROR("failed to vmap() buffer\n");
else
kvaddr += dump_info->offset;
if (!kvaddr) {
DRM_ERROR("failed to vmap() buffer for %s\n", file_name);
return -ENOMEM;
}
kvaddr += dump_info->offset;
old_fs = get_fs();
set_fs(KERNEL_DS);
ksys_mkdir(DUMP_BUF_PATH, 0700);
ptr = file_name;
if (dump_info->AFBC_flag)
size = get_afbc_size(width, dump_info->height, bpp);
else
size = width * dump_info->height * bpp >> 3;
fd = ksys_open(ptr, flags, 0644);
if (fd >= 0) {
ksys_write(fd, kvaddr, width * dump_info->height * bits >> 3);
ksys_write(fd, kvaddr, size);
DRM_INFO("dump file name is:%s\n", file_name);
ksys_close(fd);
} else {
@@ -249,14 +285,12 @@ static ssize_t vop_dump_write(struct file *file, const char __user *ubuf,
}
crtc->vop_dump_times = dump_times;
} else {
drm_modeset_lock_all(crtc->dev);
list_for_each_entry_safe(pos, n,
&crtc->vop_dump_list_head,
entry) {
vop_plane_dump(&pos->dump_info,
crtc->frame_count);
}
drm_modeset_unlock_all(crtc->dev);
crtc->frame_count++;
}
} else {