diff options
| author | Thierry Reding <thierry.reding@avionic-design.de> | 2013-10-07 09:47:58 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2013-10-31 09:55:46 +0100 |
| commit | db7fbdfd25ee009165b6c3b80a9d1c6d8534ad94 (patch) | |
| tree | 1ba0c25b63b227a7f139b03ae217daf0b7ec1f81 /drivers/gpu/drm/tegra/dc.c | |
| parent | drm/tegra: Add support for tiled buffer objects (diff) | |
| download | linux-db7fbdfd25ee009165b6c3b80a9d1c6d8534ad94.tar.xz linux-db7fbdfd25ee009165b6c3b80a9d1c6d8534ad94.zip | |
drm/tegra: Support bottom-up buffer objects
The gr3d engine renders images bottom-up. Allow buffers that are used
for 3D content to be marked as such and implement support in the display
controller to present them properly.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dc.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index c51aaf7555f5..ae1cb31ead7e 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -47,6 +47,7 @@ static int tegra_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, window.dst.h = crtc_h; window.format = tegra_dc_format(fb->pixel_format); window.bits_per_pixel = fb->bits_per_pixel; + window.bottom_up = tegra_fb_is_bottom_up(fb); window.tiled = tegra_fb_is_tiled(fb); for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) { @@ -147,6 +148,7 @@ static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y, { unsigned int format = tegra_dc_format(fb->pixel_format); struct tegra_bo *bo = tegra_fb_get_plane(fb, 0); + unsigned int h_offset = 0, v_offset = 0; unsigned long value; tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER); @@ -168,6 +170,22 @@ static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y, tegra_dc_writel(dc, value, DC_WIN_BUFFER_ADDR_MODE); + /* make sure bottom-up buffers are properly displayed */ + if (tegra_fb_is_bottom_up(fb)) { + value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); + value |= INVERT_V; + tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); + + v_offset += fb->height - 1; + } else { + value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); + value &= ~INVERT_V; + tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); + } + + tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); + tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); + value = GENERAL_UPDATE | WIN_A_UPDATE; tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL); @@ -517,6 +535,9 @@ int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, tegra_dc_writel(dc, window->stride[0], DC_WIN_LINE_STRIDE); } + if (window->bottom_up) + v_offset += window->src.h - 1; + tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); @@ -548,6 +569,9 @@ int tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, value |= COLOR_EXPAND; } + if (window->bottom_up) + value |= INVERT_V; + tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); /* |