There are afbc helpers available.
Signed-off-by: Andrzej Pietrasiewicz <andrze...@collabora.com>
---
drivers/gpu/drm/arm/malidp_drv.c | 121 +++++--------------------------
1 file changed, 20 insertions(+), 101 deletions(-)
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 37d92a06318e..ff8364680676 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -15,6 +15,7 @@
#include <linux/pm_runtime.h>
#include <linux/debugfs.h>
+#include <drm/drm_afbc.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
@@ -35,8 +36,6 @@
#include "malidp_hw.h"
#define MALIDP_CONF_VALID_TIMEOUT 250
-#define AFBC_HEADER_SIZE 16
-#define AFBC_SUPERBLK_ALIGNMENT 128
static void malidp_write_gamma_table(struct malidp_hw_device *hwdev,
u32 data[MALIDP_COEFFTAB_NUM_COEFFS])
@@ -269,112 +268,32 @@ static const struct drm_mode_config_helper_funcs
malidp_mode_config_helpers = {
.atomic_commit_tail = malidp_atomic_commit_tail,
};
-static bool
-malidp_verify_afbc_framebuffer_caps(struct drm_device *dev,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- if (malidp_format_mod_supported(dev, mode_cmd->pixel_format,
- mode_cmd->modifier[0]) == false)
- return false;
-
- if (mode_cmd->offsets[0] != 0) {
- DRM_DEBUG_KMS("AFBC buffers' plane offset should be 0\n");
- return false;
- }
-
- switch (mode_cmd->modifier[0] & AFBC_SIZE_MASK) {
- case AFBC_SIZE_16X16:
- if ((mode_cmd->width % 16) || (mode_cmd->height % 16)) {
- DRM_DEBUG_KMS("AFBC buffers must be aligned to 16
pixels\n");
- return false;
- }
- break;
- default:
- DRM_DEBUG_KMS("Unsupported AFBC block size\n");
- return false;
- }
-
- return true;
-}
-
-static bool
-malidp_verify_afbc_framebuffer_size(struct drm_device *dev,
- struct drm_file *file,
- const struct drm_mode_fb_cmd2 *mode_cmd)
+static struct drm_framebuffer *
+malidp_fb_create(struct drm_device *dev, struct drm_file *file,
+ const struct drm_mode_fb_cmd2 *mode_cmd)
{
- int n_superblocks = 0;
- const struct drm_format_info *info;
- struct drm_gem_object *objs = NULL;
- u32 afbc_superblock_size = 0, afbc_superblock_height = 0;
- u32 afbc_superblock_width = 0, afbc_size = 0;
- int bpp = 0;
-
- switch (mode_cmd->modifier[0] & AFBC_SIZE_MASK) {
- case AFBC_SIZE_16X16:
- afbc_superblock_height = 16;
- afbc_superblock_width = 16;
- break;
- default:
- DRM_DEBUG_KMS("AFBC superblock size is not supported\n");
- return false;
- }
-
- info = drm_get_format_info(dev, mode_cmd);
-
- n_superblocks = (mode_cmd->width / afbc_superblock_width) *
- (mode_cmd->height / afbc_superblock_height);
-
- bpp = malidp_format_get_bpp(info->format);
-
- afbc_superblock_size = (bpp * afbc_superblock_width *
afbc_superblock_height)
- / BITS_PER_BYTE;
-
- afbc_size = ALIGN(n_superblocks * AFBC_HEADER_SIZE,
AFBC_SUPERBLK_ALIGNMENT);
- afbc_size += n_superblocks * ALIGN(afbc_superblock_size,
AFBC_SUPERBLK_ALIGNMENT);
-
- if ((mode_cmd->width * bpp) != (mode_cmd->pitches[0] * BITS_PER_BYTE)) {
- DRM_DEBUG_KMS("Invalid value of (pitch * BITS_PER_BYTE) (=%u) "
- "should be same as width (=%u) * bpp (=%u)\n",
- (mode_cmd->pitches[0] * BITS_PER_BYTE),
- mode_cmd->width, bpp);
- return false;
- }
-
- objs = drm_gem_object_lookup(file, mode_cmd->handles[0]);
- if (!objs) {
- DRM_DEBUG_KMS("Failed to lookup GEM object\n");
- return false;
- }
+ if (mode_cmd->modifier[0]) {
+ struct drm_afbc afbc;
- if (objs->size < afbc_size) {
- DRM_DEBUG_KMS("buffer size (%zu) too small for AFBC buffer size
= %u\n",
- objs->size, afbc_size);
- drm_gem_object_put_unlocked(objs);
- return false;
- }
+ if (malidp_format_mod_supported(dev, mode_cmd->pixel_format,
+ mode_cmd->modifier[0]) == false)
+ return ERR_PTR(-EINVAL);
- drm_gem_object_put_unlocked(objs);
+ drm_afbc_get_parameters(mode_cmd, &afbc);
- return true;
-}
+ if (afbc.tile_w != 16 || afbc.tile_h != 16) {
+ DRM_DEV_DEBUG(dev->dev,
+ "Unsupported AFBC block size %dx%d\n",
+ afbc.tile_w, afbc.tile_h);
-static bool
-malidp_verify_afbc_framebuffer(struct drm_device *dev, struct drm_file *file,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- if (malidp_verify_afbc_framebuffer_caps(dev, mode_cmd))
- return malidp_verify_afbc_framebuffer_size(dev, file, mode_cmd);
-
- return false;
-}
+ return ERR_PTR(-EINVAL);
+ }
-static struct drm_framebuffer *
-malidp_fb_create(struct drm_device *dev, struct drm_file *file,
- const struct drm_mode_fb_cmd2 *mode_cmd)
-{
- if (mode_cmd->modifier[0]) {
- if (!malidp_verify_afbc_framebuffer(dev, file, mode_cmd))
+ if (afbc.offset) {
+ DRM_DEV_ERROR(dev->dev,
+ "AFBC plane offset must be zero!\n");
return ERR_PTR(-EINVAL);
+ }
}
return drm_gem_fb_create(dev, file, mode_cmd);
--
2.17.1
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