drm/tegra: Atomic conversion, phase 3, step 3
Provide a custom ->atomic_commit() implementation which supports async
commits. The generic atomic page-flip helper can use this to implement
page-flipping.
Signed-off-by: Thierry Reding <treding@nvidia.com>
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c
index aa66abb..2f9af13 100644
--- a/drivers/gpu/drm/tegra/dc.c
+++ b/drivers/gpu/drm/tegra/dc.c
@@ -820,99 +820,6 @@
return 0;
}
-static int tegra_dc_set_base(struct tegra_dc *dc, int x, int y,
- struct drm_framebuffer *fb)
-{
- struct tegra_bo *bo = tegra_fb_get_plane(fb, 0);
- unsigned int h_offset = 0, v_offset = 0;
- struct tegra_bo_tiling tiling;
- unsigned long value, flags;
- unsigned int format, swap;
- int err;
-
- err = tegra_fb_get_tiling(fb, &tiling);
- if (err < 0)
- return err;
-
- spin_lock_irqsave(&dc->lock, flags);
-
- tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER);
-
- value = fb->offsets[0] + y * fb->pitches[0] +
- x * fb->bits_per_pixel / 8;
-
- tegra_dc_writel(dc, bo->paddr + value, DC_WINBUF_START_ADDR);
- tegra_dc_writel(dc, fb->pitches[0], DC_WIN_LINE_STRIDE);
-
- format = tegra_dc_format(fb->pixel_format, &swap);
- tegra_dc_writel(dc, format, DC_WIN_COLOR_DEPTH);
- tegra_dc_writel(dc, swap, DC_WIN_BYTE_SWAP);
-
- if (dc->soc->supports_block_linear) {
- unsigned long height = tiling.value;
-
- switch (tiling.mode) {
- case TEGRA_BO_TILING_MODE_PITCH:
- value = DC_WINBUF_SURFACE_KIND_PITCH;
- break;
-
- case TEGRA_BO_TILING_MODE_TILED:
- value = DC_WINBUF_SURFACE_KIND_TILED;
- break;
-
- case TEGRA_BO_TILING_MODE_BLOCK:
- value = DC_WINBUF_SURFACE_KIND_BLOCK_HEIGHT(height) |
- DC_WINBUF_SURFACE_KIND_BLOCK;
- break;
- }
-
- tegra_dc_writel(dc, value, DC_WINBUF_SURFACE_KIND);
- } else {
- switch (tiling.mode) {
- case TEGRA_BO_TILING_MODE_PITCH:
- value = DC_WIN_BUFFER_ADDR_MODE_LINEAR_UV |
- DC_WIN_BUFFER_ADDR_MODE_LINEAR;
- break;
-
- case TEGRA_BO_TILING_MODE_TILED:
- value = DC_WIN_BUFFER_ADDR_MODE_TILE_UV |
- DC_WIN_BUFFER_ADDR_MODE_TILE;
- break;
-
- case TEGRA_BO_TILING_MODE_BLOCK:
- DRM_ERROR("hardware doesn't support block linear mode\n");
- spin_unlock_irqrestore(&dc->lock, flags);
- return -EINVAL;
- }
-
- 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 |= V_DIRECTION;
- 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 &= ~V_DIRECTION;
- 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_ACT_REQ | WIN_A_ACT_REQ;
- tegra_dc_writel(dc, value << 8, DC_CMD_STATE_CONTROL);
- tegra_dc_writel(dc, value, DC_CMD_STATE_CONTROL);
-
- spin_unlock_irqrestore(&dc->lock, flags);
-
- return 0;
-}
-
void tegra_dc_enable_vblank(struct tegra_dc *dc)
{
unsigned long value, flags;
@@ -991,30 +898,6 @@
spin_unlock_irqrestore(&drm->event_lock, flags);
}
-static int tegra_dc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
- struct drm_pending_vblank_event *event, uint32_t page_flip_flags)
-{
- unsigned int pipe = drm_crtc_index(crtc);
- struct tegra_dc *dc = to_tegra_dc(crtc);
-
- if (dc->event)
- return -EBUSY;
-
- if (event) {
- event->pipe = pipe;
- dc->event = event;
- drm_crtc_vblank_get(crtc);
- }
-
- if (crtc->primary->state)
- drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
-
- tegra_dc_set_base(dc, 0, 0, fb);
- crtc->primary->fb = fb;
-
- return 0;
-}
-
static void tegra_dc_destroy(struct drm_crtc *crtc)
{
drm_crtc_cleanup(crtc);
@@ -1056,7 +939,7 @@
}
static const struct drm_crtc_funcs tegra_crtc_funcs = {
- .page_flip = tegra_dc_page_flip,
+ .page_flip = drm_atomic_helper_page_flip,
.set_config = drm_atomic_helper_set_config,
.destroy = tegra_dc_destroy,
.reset = tegra_crtc_reset,
@@ -1326,6 +1209,16 @@
static void tegra_crtc_atomic_begin(struct drm_crtc *crtc)
{
+ struct tegra_dc *dc = to_tegra_dc(crtc);
+
+ if (crtc->state->event) {
+ crtc->state->event->pipe = drm_crtc_index(crtc);
+
+ WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+
+ dc->event = crtc->state->event;
+ crtc->state->event = NULL;
+ }
}
static void tegra_crtc_atomic_flush(struct drm_crtc *crtc)