Implement the CRTC .atomic_begin() and .atomic_flush() operations, the plane .atomic_check(), .atomic_update() and operations, and use the transitional atomic helpers to implement the plane update and disable operations on top of the new atomic operations.
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/omapdrm/omap_crtc.c | 14 ++++ drivers/gpu/drm/omapdrm/omap_plane.c | 127 ++++++++++++++++++++++------------- 2 files changed, 93 insertions(+), 48 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c index 5f4f5ad..277cad1 100644 --- a/drivers/gpu/drm/omapdrm/omap_crtc.c +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c @@ -652,6 +652,18 @@ static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, return omap_crtc_flush(crtc); }
+static void omap_crtc_atomic_begin(struct drm_crtc *crtc) +{ + dispc_runtime_get(); +} + +static void omap_crtc_atomic_flush(struct drm_crtc *crtc) +{ + omap_crtc_flush(crtc); + + dispc_runtime_put(); +} + static void page_flip_worker(struct work_struct *work) { struct omap_crtc *omap_crtc = @@ -792,6 +804,8 @@ static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = { .mode_set_base = omap_crtc_mode_set_base, .disable = omap_crtc_disable, .enable = omap_crtc_enable, + .atomic_begin = omap_crtc_atomic_begin, + .atomic_flush = omap_crtc_atomic_flush, };
/* ----------------------------------------------------------------------------- diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c index 533dcc1..7587bac 100644 --- a/drivers/gpu/drm/omapdrm/omap_plane.c +++ b/drivers/gpu/drm/omapdrm/omap_plane.c @@ -18,6 +18,7 @@ */
#include <drm/drm_atomic_helper.h> +#include <drm/drm_plane_helper.h>
#include "omap_dmm_tiler.h" #include "omap_drv.h" @@ -87,30 +88,23 @@ static int omap_plane_update_pin(struct drm_plane *plane) return 0; }
-static int omap_plane_setup(struct omap_plane *omap_plane) +static int __omap_plane_setup(struct omap_plane *omap_plane, + struct drm_crtc *crtc, + struct drm_framebuffer *fb) { struct omap_overlay_info *info = &omap_plane->info; - struct drm_plane *plane = &omap_plane->base; - struct drm_device *dev = plane->dev; - struct drm_crtc *crtc = plane->crtc; + struct drm_device *dev = omap_plane->base.dev; int ret;
DBG("%s, enabled=%d", omap_plane->name, omap_plane->enabled);
- /* if fb has changed, pin new fb: */ - ret = omap_plane_update_pin(plane); - if (ret) - return ret; - - dispc_runtime_get(); - if (!omap_plane->enabled) { dispc_ovl_enable(omap_plane->id, false); - goto done; + return 0; }
/* update scanout: */ - omap_framebuffer_update_scanout(plane->fb, &omap_plane->win, info); + omap_framebuffer_update_scanout(fb, &omap_plane->win, info);
DBG("%dx%d -> %dx%d (%d)", info->width, info->height, info->out_width, info->out_height, @@ -126,13 +120,27 @@ static int omap_plane_setup(struct omap_plane *omap_plane) omap_crtc_timings(crtc), false); if (ret) { dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret); - goto done; + return ret; }
dispc_ovl_enable(omap_plane->id, true);
-done: + return 0; +} + +static int omap_plane_setup(struct omap_plane *omap_plane) +{ + struct drm_plane *plane = &omap_plane->base; + int ret; + + ret = omap_plane_update_pin(plane); + if (ret < 0) + return ret; + + dispc_runtime_get(); + ret = __omap_plane_setup(omap_plane, plane->crtc, plane->fb); dispc_runtime_put(); + return ret; }
@@ -170,45 +178,62 @@ int omap_plane_set_enable(struct drm_plane *plane, bool enable) return omap_plane_setup(omap_plane); }
-static int omap_plane_update(struct drm_plane *plane, - struct drm_crtc *crtc, struct drm_framebuffer *fb, - int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h) +static int omap_plane_prepare_fb(struct drm_plane *plane, + struct drm_framebuffer *fb, + const struct drm_plane_state *new_state) +{ + return omap_framebuffer_pin(fb); +} + +static void omap_plane_cleanup_fb(struct drm_plane *plane, + struct drm_framebuffer *fb, + const struct drm_plane_state *old_state) +{ + omap_framebuffer_unpin(fb); +} + +static void omap_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) { struct omap_plane *omap_plane = to_omap_plane(plane); - int ret; + struct omap_drm_window *win = &omap_plane->win; + struct drm_plane_state *state = plane->state; + uint32_t src_w; + uint32_t src_h;
- omap_plane->enabled = true; + if (!state->fb || !state->crtc) + return;
- /* omap_plane_mode_set() takes adjusted src */ + /* omap_framebuffer_update_scanout() takes adjusted src */ switch (omap_plane->win.rotation & 0xf) { case BIT(DRM_ROTATE_90): case BIT(DRM_ROTATE_270): - swap(src_w, src_h); + src_w = state->src_h; + src_h = state->src_w; + break; + default: + src_w = state->src_w; + src_h = state->src_h; break; }
- /* - * We don't need to take a reference to the framebuffer as the DRM core - * has already done so for the purpose of setting plane->fb. - */ - plane->fb = fb; - plane->crtc = crtc; - - /* src values are in Q16 fixed point, convert to integer: */ - ret = omap_plane_mode_set(plane, crtc, fb, - crtc_x, crtc_y, crtc_w, crtc_h, - src_x >> 16, src_y >> 16, - src_w >> 16, src_h >> 16); - if (ret < 0) - return ret; + /* src values are in Q16 fixed point, convert to integer. */ + win->crtc_x = state->crtc_x; + win->crtc_y = state->crtc_y; + win->crtc_w = state->crtc_w; + win->crtc_h = state->crtc_h;
- return omap_crtc_flush(plane->crtc); + win->src_x = state->src_x >> 16; + win->src_y = state->src_y >> 16; + win->src_w = src_w >> 16; + win->src_h = src_h >> 16; + + omap_plane->enabled = true; + __omap_plane_setup(omap_plane, state->crtc, state->fb); }
-static int omap_plane_disable(struct drm_plane *plane) +static void omap_plane_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) { struct omap_plane *omap_plane = to_omap_plane(plane);
@@ -217,15 +242,19 @@ static int omap_plane_disable(struct drm_plane *plane) ? 0 : omap_plane->id;
if (!omap_plane->enabled) - return 0; + return;
- /* Disabling a plane never fails. */ omap_plane->enabled = false; - omap_plane_setup(omap_plane); - - return omap_crtc_flush(plane->crtc); + __omap_plane_setup(omap_plane, NULL, NULL); }
+static const struct drm_plane_helper_funcs omap_plane_helper_funcs = { + .prepare_fb = omap_plane_prepare_fb, + .cleanup_fb = omap_plane_cleanup_fb, + .atomic_update = omap_plane_atomic_update, + .atomic_disable = omap_plane_atomic_disable, +}; + static void omap_plane_destroy(struct drm_plane *plane) { struct omap_plane *omap_plane = to_omap_plane(plane); @@ -287,8 +316,8 @@ int omap_plane_set_property(struct drm_plane *plane, }
static const struct drm_plane_funcs omap_plane_funcs = { - .update_plane = omap_plane_update, - .disable_plane = omap_plane_disable, + .update_plane = drm_plane_helper_update, + .disable_plane = drm_plane_helper_disable, .reset = drm_atomic_helper_plane_reset, .destroy = omap_plane_destroy, .set_property = omap_plane_set_property, @@ -352,6 +381,8 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, if (ret < 0) goto error;
+ drm_plane_helper_add(plane, &omap_plane_helper_funcs); + omap_plane_install_properties(plane, &plane->base);
/* get our starting configuration, set defaults for parameters