[PATCHv2 15/45] drm: omapdrm: Implement planes atomic operations
Tomi Valkeinen
tomi.valkeinen at ti.com
Thu Jun 4 02:02:32 PDT 2015
From: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
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 at ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen at ti.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 5f4f5ad93345..277cad1dacf7 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 533dcc15f03c..7587bac1b222 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
--
2.1.4
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