From: Benoit Parrot bparrot@ti.com
Split out the hardware overlay specifics from omap_plane. To start, the hw overlays are statically assigned to planes.
The goal is to eventually assign hw overlays dynamically to planes during plane->atomic_check() based on requested caps (scaling, YUV, etc). And then perform hw overlay re-assignment if required.
Signed-off-by: Benoit Parrot bparrot@ti.com Signed-off-by: Neil Armstrong narmstrong@baylibre.com --- drivers/gpu/drm/omapdrm/Makefile | 1 + drivers/gpu/drm/omapdrm/omap_drv.c | 9 ++- drivers/gpu/drm/omapdrm/omap_drv.h | 4 ++ drivers/gpu/drm/omapdrm/omap_overlay.c | 84 ++++++++++++++++++++++++++ drivers/gpu/drm/omapdrm/omap_overlay.h | 30 +++++++++ drivers/gpu/drm/omapdrm/omap_plane.c | 54 +++++++---------- 6 files changed, 148 insertions(+), 34 deletions(-) create mode 100644 drivers/gpu/drm/omapdrm/omap_overlay.c create mode 100644 drivers/gpu/drm/omapdrm/omap_overlay.h
diff --git a/drivers/gpu/drm/omapdrm/Makefile b/drivers/gpu/drm/omapdrm/Makefile index 21e8277ff88f..710b4e0abcf0 100644 --- a/drivers/gpu/drm/omapdrm/Makefile +++ b/drivers/gpu/drm/omapdrm/Makefile @@ -9,6 +9,7 @@ omapdrm-y := omap_drv.o \ omap_debugfs.o \ omap_crtc.o \ omap_plane.o \ + omap_overlay.o \ omap_encoder.o \ omap_fb.o \ omap_gem.o \ diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index f86e20578143..b994014b22e8 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -583,10 +583,14 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
omap_gem_init(ddev);
+ ret = omap_hwoverlays_init(priv); + if (ret) + goto err_gem_deinit; + ret = omap_modeset_init(ddev); if (ret) { dev_err(priv->dev, "omap_modeset_init failed: ret=%d\n", ret); - goto err_gem_deinit; + goto err_free_overlays; }
/* Initialize vblank handling, start with all CRTCs disabled. */ @@ -618,6 +622,8 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev) omap_fbdev_fini(ddev); err_cleanup_modeset: omap_modeset_fini(ddev); +err_free_overlays: + omap_hwoverlays_destroy(priv); err_gem_deinit: omap_gem_deinit(ddev); destroy_workqueue(priv->wq); @@ -642,6 +648,7 @@ static void omapdrm_cleanup(struct omap_drm_private *priv) drm_atomic_helper_shutdown(ddev);
omap_modeset_fini(ddev); + omap_hwoverlays_destroy(priv); omap_gem_deinit(ddev);
destroy_workqueue(priv->wq); diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h index 591d4c273f02..b4d9c2062723 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.h +++ b/drivers/gpu/drm/omapdrm/omap_drv.h @@ -24,6 +24,7 @@ #include "omap_gem.h" #include "omap_irq.h" #include "omap_plane.h" +#include "omap_overlay.h"
#define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__) #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__) /* verbose debug */ @@ -57,6 +58,9 @@ struct omap_drm_private { unsigned int num_planes; struct drm_plane *planes[8];
+ unsigned int num_ovls; + struct omap_hw_overlay *overlays[8]; + struct drm_fb_helper *fbdev;
struct workqueue_struct *wq; diff --git a/drivers/gpu/drm/omapdrm/omap_overlay.c b/drivers/gpu/drm/omapdrm/omap_overlay.c new file mode 100644 index 000000000000..de67b39529bd --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_overlay.c @@ -0,0 +1,84 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/ + * Author: Benoit Parrot bparrot@ti.com + */ + +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_plane_helper.h> + +#include "omap_dmm_tiler.h" +#include "omap_drv.h" + +/* + * overlay funcs + */ +static const char * const overlay_id_to_name[] = { + [OMAP_DSS_GFX] = "gfx", + [OMAP_DSS_VIDEO1] = "vid1", + [OMAP_DSS_VIDEO2] = "vid2", + [OMAP_DSS_VIDEO3] = "vid3", +}; + +static void omap_overlay_destroy(struct omap_hw_overlay *overlay) +{ + kfree(overlay); +} + +static struct omap_hw_overlay *omap_overlay_init(enum omap_plane_id overlay_id, + enum omap_overlay_caps caps) +{ + struct omap_hw_overlay *overlay; + + overlay = kzalloc(sizeof(*overlay), GFP_KERNEL); + if (!overlay) + return ERR_PTR(-ENOMEM); + + overlay->name = overlay_id_to_name[overlay_id]; + overlay->id = overlay_id; + overlay->caps = caps; + + return overlay; +} + +int omap_hwoverlays_init(struct omap_drm_private *priv) +{ + static const enum omap_plane_id hw_plane_ids[] = { + OMAP_DSS_GFX, OMAP_DSS_VIDEO1, + OMAP_DSS_VIDEO2, OMAP_DSS_VIDEO3, + }; + u32 num_overlays = dispc_get_num_ovls(priv->dispc); + enum omap_overlay_caps caps; + int i, ret; + + for (i = 0; i < num_overlays; i++) { + struct omap_hw_overlay *overlay; + + caps = dispc_ovl_get_caps(priv->dispc, hw_plane_ids[i]); + overlay = omap_overlay_init(hw_plane_ids[i], caps); + if (IS_ERR(overlay)) { + ret = PTR_ERR(overlay); + dev_err(priv->dev, "failed to construct overlay for %s (%d)\n", + overlay_id_to_name[i], ret); + omap_hwoverlays_destroy(priv); + return ret; + } + overlay->idx = priv->num_ovls; + priv->overlays[priv->num_ovls++] = overlay; + } + + return 0; +} + +void omap_hwoverlays_destroy(struct omap_drm_private *priv) +{ + int i; + + for (i = 0; i < priv->num_ovls; i++) { + omap_overlay_destroy(priv->overlays[i]); + priv->overlays[i] = NULL; + } + + priv->num_ovls = 0; +} diff --git a/drivers/gpu/drm/omapdrm/omap_overlay.h b/drivers/gpu/drm/omapdrm/omap_overlay.h new file mode 100644 index 000000000000..51d26aebf77d --- /dev/null +++ b/drivers/gpu/drm/omapdrm/omap_overlay.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/ + * Author: Benoit Parrot bparrot@ti.com + */ + +#ifndef __OMAPDRM_OVERLAY_H__ +#define __OMAPDRM_OVERLAY_H__ + +#include <linux/types.h> + +enum drm_plane_type; + +struct drm_device; +struct drm_mode_object; +struct drm_plane; + +/* Used to associate a HW overlay/plane to a plane */ +struct omap_hw_overlay { + unsigned int idx; + + const char *name; + enum omap_plane_id id; + + enum omap_overlay_caps caps; +}; + +int omap_hwoverlays_init(struct omap_drm_private *priv); +void omap_hwoverlays_destroy(struct omap_drm_private *priv); +#endif /* __OMAPDRM_OVERLAY_H__ */ diff --git a/drivers/gpu/drm/omapdrm/omap_plane.c b/drivers/gpu/drm/omapdrm/omap_plane.c index 846698c21a4a..8cc2b899f20c 100644 --- a/drivers/gpu/drm/omapdrm/omap_plane.c +++ b/drivers/gpu/drm/omapdrm/omap_plane.c @@ -21,7 +21,8 @@ struct omap_plane { struct drm_plane base; enum omap_plane_id id; - const char *name; + + struct omap_hw_overlay *overlay; };
static int omap_plane_prepare_fb(struct drm_plane *plane, @@ -49,10 +50,11 @@ static void omap_plane_atomic_update(struct drm_plane *plane, struct omap_plane *omap_plane = to_omap_plane(plane); struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane); + enum omap_plane_id ovl_id = omap_plane->overlay->id; struct omap_overlay_info info; int ret;
- DBG("%s, crtc=%p fb=%p", omap_plane->name, new_state->crtc, + DBG("%s, crtc=%p fb=%p", plane->name, new_state->crtc, new_state->fb);
memset(&info, 0, sizeof(info)); @@ -77,17 +79,17 @@ static void omap_plane_atomic_update(struct drm_plane *plane, &info.paddr, &info.p_uv_addr);
/* and finally, update omapdss: */ - ret = dispc_ovl_setup(priv->dispc, omap_plane->id, &info, + ret = dispc_ovl_setup(priv->dispc, ovl_id, &info, omap_crtc_timings(new_state->crtc), false, omap_crtc_channel(new_state->crtc)); if (ret) { dev_err(plane->dev->dev, "Failed to setup plane %s\n", - omap_plane->name); - dispc_ovl_enable(priv->dispc, omap_plane->id, false); + plane->name); + dispc_ovl_enable(priv->dispc, ovl_id, false); return; }
- dispc_ovl_enable(priv->dispc, omap_plane->id, true); + dispc_ovl_enable(priv->dispc, ovl_id, true); }
static void omap_plane_atomic_disable(struct drm_plane *plane, @@ -97,11 +99,12 @@ static void omap_plane_atomic_disable(struct drm_plane *plane, plane); struct omap_drm_private *priv = plane->dev->dev_private; struct omap_plane *omap_plane = to_omap_plane(plane); + enum omap_plane_id ovl_id = omap_plane->overlay->id;
new_state->rotation = DRM_MODE_ROTATE_0; new_state->zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : omap_plane->id;
- dispc_ovl_enable(priv->dispc, omap_plane->id, false); + dispc_ovl_enable(priv->dispc, ovl_id, false); }
#define FRAC_16_16(mult, div) (((mult) << 16) / (div)) @@ -184,7 +187,7 @@ static void omap_plane_destroy(struct drm_plane *plane) { struct omap_plane *omap_plane = to_omap_plane(plane);
- DBG("%s", omap_plane->name); + DBG("%s", plane->name);
drm_plane_cleanup(plane);
@@ -290,20 +293,6 @@ static bool omap_plane_supports_yuv(struct drm_plane *plane) return false; }
-static const char *plane_id_to_name[] = { - [OMAP_DSS_GFX] = "gfx", - [OMAP_DSS_VIDEO1] = "vid1", - [OMAP_DSS_VIDEO2] = "vid2", - [OMAP_DSS_VIDEO3] = "vid3", -}; - -static const enum omap_plane_id plane_idx_to_id[] = { - OMAP_DSS_GFX, - OMAP_DSS_VIDEO1, - OMAP_DSS_VIDEO2, - OMAP_DSS_VIDEO3, -}; - /* initialize plane */ struct drm_plane *omap_plane_init(struct drm_device *dev, int idx, enum drm_plane_type type, @@ -313,27 +302,26 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, unsigned int num_planes = dispc_get_num_ovls(priv->dispc); struct drm_plane *plane; struct omap_plane *omap_plane; - enum omap_plane_id id; int ret; u32 nformats; const u32 *formats;
- if (WARN_ON(idx >= ARRAY_SIZE(plane_idx_to_id))) + if (WARN_ON(idx >= num_planes)) return ERR_PTR(-EINVAL);
- id = plane_idx_to_id[idx]; - - DBG("%s: type=%d", plane_id_to_name[id], type); - omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL); if (!omap_plane) return ERR_PTR(-ENOMEM);
- formats = dispc_ovl_get_color_modes(priv->dispc, id); + omap_plane->id = idx; + omap_plane->overlay = priv->overlays[idx]; + + DBG("%d: type=%d", omap_plane->id, type); + DBG(" crtc_mask: 0x%04x", possible_crtcs); + + formats = dispc_ovl_get_color_modes(priv->dispc, omap_plane->overlay->id); for (nformats = 0; formats[nformats]; ++nformats) ; - omap_plane->id = id; - omap_plane->name = plane_id_to_name[id];
plane = &omap_plane->base;
@@ -363,8 +351,8 @@ struct drm_plane *omap_plane_init(struct drm_device *dev, return plane;
error: - dev_err(dev->dev, "%s(): could not create plane: %s\n", - __func__, plane_id_to_name[id]); + dev_err(dev->dev, "%s(): could not create plane: %d\n", + __func__, omap_plane->id);
kfree(omap_plane); return NULL;