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Subject[PATCH v2 2/3] drm/rockchip: Add rockchip_vop_get_offset to get offset
Date
Add rockchip_vop_get_offset to get offset, this can compatible legacy
and block_h/w format describe.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
---
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 61 ++++++++++++++++++++++++-----
1 file changed, 52 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 2f821c5..ce74218 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -249,6 +249,56 @@ static bool has_rb_swapped(uint32_t format)
}
}

+static u32 rockchip_vop_get_offset(struct drm_plane_state *state, u8 plane)
+{
+ const struct drm_format_info *info;
+ struct drm_rect *src = &state->src;
+ struct drm_framebuffer *fb = state->fb;
+ u32 format = fb->format->format;
+ u8 h_div = 1, v_div = 1;
+ u32 block_w, block_h, block_size, block_start_y, num_hblocks;
+ u32 sample_x, sample_y;
+ u32 offset;
+
+ info = drm_format_info(format);
+ if (!info || plane >= info->num_planes)
+ return 0;
+
+ if (plane > 0) {
+ h_div = fb->format->hsub;
+ v_div = fb->format->vsub;
+ }
+
+ switch (format) {
+ case DRM_FORMAT_NV12_10:
+ case DRM_FORMAT_NV21_10:
+ case DRM_FORMAT_NV16_10:
+ case DRM_FORMAT_NV61_10:
+ case DRM_FORMAT_NV24_10:
+ case DRM_FORMAT_NV42_10:
+ block_w = drm_format_info_block_width(fb->format, plane);
+ block_h = drm_format_info_block_height(fb->format, plane);
+ block_size = fb->format->char_per_block[plane];
+
+ sample_x = (src->x1 >> 16) / h_div;
+ sample_y = (src->y1 >> 16) / v_div;
+ block_start_y = (sample_y / block_h) * block_h;
+ num_hblocks = sample_x / block_w;
+
+ offset = fb->pitches[plane] * block_start_y;
+ offset += block_size * num_hblocks;
+
+ break;
+ default:
+ offset = (src->x1 >> 16) * fb->format->cpp[plane] / h_div;
+ offset += (src->y1 >> 16) * fb->pitches[plane] / v_div;
+
+ break;
+ }
+
+ return offset;
+}
+
static enum vop_data_format vop_convert_format(uint32_t format)
{
switch (format) {
@@ -832,8 +882,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start;
dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff);

- offset = (src->x1 >> 16) * fb->format->cpp[0];
- offset += (src->y1 >> 16) * fb->pitches[0];
+ offset = rockchip_vop_get_offset(state, 0);
dma_addr = rk_obj->dma_addr + offset + fb->offsets[0];

/*
@@ -857,16 +906,10 @@ static void vop_plane_atomic_update(struct drm_plane *plane,
(state->rotation & DRM_MODE_REFLECT_X) ? 1 : 0);

if (is_yuv) {
- int hsub = fb->format->hsub;
- int vsub = fb->format->vsub;
- int bpp = fb->format->cpp[1];
-
uv_obj = fb->obj[1];
rk_uv_obj = to_rockchip_obj(uv_obj);

- offset = (src->x1 >> 16) * bpp / hsub;
- offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
-
+ offset = rockchip_vop_get_offset(state, 1);
dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1];
VOP_WIN_SET(vop, win, uv_vir, DIV_ROUND_UP(fb->pitches[1], 4));
VOP_WIN_SET(vop, win, uv_mst, dma_addr);
--
2.7.4


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