[linux-block.git] / drivers / gpu / drm / mediatek / mtk_drm_plane.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2015 MediaTek Inc.
 * Author: CK Hu <ck.hu@mediatek.com>
 */

#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_plane_helper.h>

#include "mtk_drm_crtc.h"
#include "mtk_drm_ddp_comp.h"
#include "mtk_drm_drv.h"
#include "mtk_drm_gem.h"
#include "mtk_drm_plane.h"

static const u32 formats[] = {
	DRM_FORMAT_XRGB8888,
	DRM_FORMAT_ARGB8888,
	DRM_FORMAT_BGRX8888,
	DRM_FORMAT_BGRA8888,
	DRM_FORMAT_ABGR8888,
	DRM_FORMAT_XBGR8888,
	DRM_FORMAT_RGB888,
	DRM_FORMAT_BGR888,
	DRM_FORMAT_RGB565,
	DRM_FORMAT_UYVY,
	DRM_FORMAT_YUYV,
};

static void mtk_plane_reset(struct drm_plane *plane)
{
	struct mtk_plane_state *state;

	if (plane->state) {
		__drm_atomic_helper_plane_destroy_state(plane->state);

		state = to_mtk_plane_state(plane->state);
		memset(state, 0, sizeof(*state));
	} else {
		state = kzalloc(sizeof(*state), GFP_KERNEL);
		if (!state)
			return;
	}

	__drm_atomic_helper_plane_reset(plane, &state->base);

	state->base.plane = plane;
	state->pending.format = DRM_FORMAT_RGB565;
}

static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
{
	struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
	struct mtk_plane_state *state;

	state = kmalloc(sizeof(*state), GFP_KERNEL);
	if (!state)
		return NULL;

	__drm_atomic_helper_plane_duplicate_state(plane, &state->base);

	WARN_ON(state->base.plane != plane);

	state->pending = old_state->pending;

	return &state->base;
}

static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
					struct drm_plane_state *state)
{
	__drm_atomic_helper_plane_destroy_state(state);
	kfree(to_mtk_plane_state(state));
}

static int mtk_plane_atomic_async_check(struct drm_plane *plane,
					struct drm_atomic_state *state)
{
	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
										 plane);
	struct drm_crtc_state *crtc_state;
	int ret;

	if (plane != new_plane_state->crtc->cursor)
		return -EINVAL;

	if (!plane->state)
		return -EINVAL;

	if (!plane->state->fb)
		return -EINVAL;

	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
				       to_mtk_plane_state(new_plane_state));
	if (ret)
		return ret;

	if (state)
		crtc_state = drm_atomic_get_existing_crtc_state(state,
								new_plane_state->crtc);
	else /* Special case for asynchronous cursor updates. */
		crtc_state = new_plane_state->crtc->state;

	return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
						   DRM_PLANE_HELPER_NO_SCALING,
						   DRM_PLANE_HELPER_NO_SCALING,
						   true, true);
}

static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
				       struct mtk_plane_state *mtk_plane_state)
{
	struct drm_framebuffer *fb = new_state->fb;
	struct drm_gem_object *gem;
	struct mtk_drm_gem_obj *mtk_gem;
	unsigned int pitch, format;
	dma_addr_t addr;

	gem = fb->obj[0];
	mtk_gem = to_mtk_gem_obj(gem);
	addr = mtk_gem->dma_addr;
	pitch = fb->pitches[0];
	format = fb->format->format;

	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
	addr += (new_state->src.y1 >> 16) * pitch;

	mtk_plane_state->pending.enable = true;
	mtk_plane_state->pending.pitch = pitch;
	mtk_plane_state->pending.format = format;
	mtk_plane_state->pending.addr = addr;
	mtk_plane_state->pending.x = new_state->dst.x1;
	mtk_plane_state->pending.y = new_state->dst.y1;
	mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
	mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
	mtk_plane_state->pending.rotation = new_state->rotation;
}

static void mtk_plane_atomic_async_update(struct drm_plane *plane,
					  struct drm_atomic_state *state)
{
	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
									   plane);
	struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);

	plane->state->crtc_x = new_state->crtc_x;
	plane->state->crtc_y = new_state->crtc_y;
	plane->state->crtc_h = new_state->crtc_h;
	plane->state->crtc_w = new_state->crtc_w;
	plane->state->src_x = new_state->src_x;
	plane->state->src_y = new_state->src_y;
	plane->state->src_h = new_state->src_h;
	plane->state->src_w = new_state->src_w;
	swap(plane->state->fb, new_state->fb);

	mtk_plane_update_new_state(new_state, new_plane_state);
	wmb(); /* Make sure the above parameters are set before update */
	new_plane_state->pending.async_dirty = true;
	mtk_drm_crtc_async_update(new_state->crtc, plane, state);
}

static const struct drm_plane_funcs mtk_plane_funcs = {
	.update_plane = drm_atomic_helper_update_plane,
	.disable_plane = drm_atomic_helper_disable_plane,
	.destroy = drm_plane_cleanup,
	.reset = mtk_plane_reset,
	.atomic_duplicate_state = mtk_plane_duplicate_state,
	.atomic_destroy_state = mtk_drm_plane_destroy_state,
};

static int mtk_plane_atomic_check(struct drm_plane *plane,
				  struct drm_atomic_state *state)
{
	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
										 plane);
	struct drm_framebuffer *fb = new_plane_state->fb;
	struct drm_crtc_state *crtc_state;
	int ret;

	if (!fb)
		return 0;

	if (WARN_ON(!new_plane_state->crtc))
		return 0;

	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
				       to_mtk_plane_state(new_plane_state));
	if (ret)
		return ret;

	crtc_state = drm_atomic_get_crtc_state(state,
					       new_plane_state->crtc);
	if (IS_ERR(crtc_state))
		return PTR_ERR(crtc_state);

	return drm_atomic_helper_check_plane_state(new_plane_state,
						   crtc_state,
						   DRM_PLANE_HELPER_NO_SCALING,
						   DRM_PLANE_HELPER_NO_SCALING,
						   true, true);
}

static void mtk_plane_atomic_disable(struct drm_plane *plane,
				     struct drm_atomic_state *state)
{
	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
									   plane);
	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
	mtk_plane_state->pending.enable = false;
	wmb(); /* Make sure the above parameter is set before update */
	mtk_plane_state->pending.dirty = true;
}

static void mtk_plane_atomic_update(struct drm_plane *plane,
				    struct drm_atomic_state *state)
{
	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
									   plane);
	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);

	if (!new_state->crtc || WARN_ON(!new_state->fb))
		return;

	if (!new_state->visible) {
		mtk_plane_atomic_disable(plane, state);
		return;
	}

	mtk_plane_update_new_state(new_state, mtk_plane_state);
	wmb(); /* Make sure the above parameters are set before update */
	mtk_plane_state->pending.dirty = true;
}

static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
	.atomic_check = mtk_plane_atomic_check,
	.atomic_update = mtk_plane_atomic_update,
	.atomic_disable = mtk_plane_atomic_disable,
	.atomic_async_update = mtk_plane_atomic_async_update,
	.atomic_async_check = mtk_plane_atomic_async_check,
};

int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
		   unsigned long possible_crtcs, enum drm_plane_type type,
		   unsigned int supported_rotations)
{
	int err;

	err = drm_universal_plane_init(dev, plane, possible_crtcs,
				       &mtk_plane_funcs, formats,
				       ARRAY_SIZE(formats), NULL, type, NULL);
	if (err) {
		DRM_ERROR("failed to initialize plane\n");
		return err;
	}

	if (supported_rotations & ~DRM_MODE_ROTATE_0) {
		err = drm_plane_create_rotation_property(plane,
							 DRM_MODE_ROTATE_0,
							 supported_rotations);
		if (err)
			DRM_INFO("Create rotation property failed\n");
	}

	drm_plane_helper_add(plane, &mtk_plane_helper_funcs);

	return 0;
}
Commit	Line	Data
1802d0be	1	// SPDX-License-Identifier: GPL-2.0-only
119f5173 CH	2	/*
	3	* Copyright (c) 2015 MediaTek Inc.
	4	* Author: CK Hu <ck.hu@mediatek.com>
119f5173 CH	5	*/
119f5173 CH	6
119f5173 CH	7	#include <drm/drm_atomic.h>
119f5173 CH	8	#include <drm/drm_atomic_helper.h>
920fffcc	9	#include <drm/drm_atomic_uapi.h>
820c1707 TZ	10	#include <drm/drm_fourcc.h>
820c1707 TZ	11	#include <drm/drm_gem_atomic_helper.h>
119f5173 CH	12	#include <drm/drm_plane_helper.h>
	13
	14	#include "mtk_drm_crtc.h"
	15	#include "mtk_drm_ddp_comp.h"
	16	#include "mtk_drm_drv.h"
119f5173 CH	17	#include "mtk_drm_gem.h"
	18	#include "mtk_drm_plane.h"
	19
	20	static const u32 formats[] = {
	21	DRM_FORMAT_XRGB8888,
	22	DRM_FORMAT_ARGB8888,
ed24d5d0 SP	23	DRM_FORMAT_BGRX8888,
	24	DRM_FORMAT_BGRA8888,
	25	DRM_FORMAT_ABGR8888,
	26	DRM_FORMAT_XBGR8888,
	27	DRM_FORMAT_RGB888,
	28	DRM_FORMAT_BGR888,
119f5173	29	DRM_FORMAT_RGB565,
170748db BH	30	DRM_FORMAT_UYVY,
170748db BH	31	DRM_FORMAT_YUYV,
119f5173 CH	32	};
119f5173 CH	33
119f5173 CH	34	static void mtk_plane_reset(struct drm_plane *plane)
	35	{
	36	struct mtk_plane_state *state;
	37
	38	if (plane->state) {
903daff6	39	__drm_atomic_helper_plane_destroy_state(plane->state);
119f5173 CH	40
	41	state = to_mtk_plane_state(plane->state);
	42	memset(state, 0, sizeof(*state));
	43	} else {
	44	state = kzalloc(sizeof(*state), GFP_KERNEL);
	45	if (!state)
	46	return;
119f5173 CH	47	}
119f5173 CH	48
d95b00f1 MY	49	__drm_atomic_helper_plane_reset(plane, &state->base);
d95b00f1 MY	50
119f5173 CH	51	state->base.plane = plane;
	52	state->pending.format = DRM_FORMAT_RGB565;
	53	}
	54
	55	static struct drm_plane_state mtk_plane_duplicate_state(struct drm_plane plane)
	56	{
	57	struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
	58	struct mtk_plane_state *state;
	59
d327bc37	60	state = kmalloc(sizeof(*state), GFP_KERNEL);
119f5173 CH	61	if (!state)
	62	return NULL;
	63
	64	__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
	65
	66	WARN_ON(state->base.plane != plane);
	67
	68	state->pending = old_state->pending;
	69
	70	return &state->base;
	71	}
	72
	73	static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
	74	struct drm_plane_state *state)
	75	{
2f701695	76	__drm_atomic_helper_plane_destroy_state(state);
119f5173 CH	77	kfree(to_mtk_plane_state(state));
	78	}
	79
920fffcc	80	static int mtk_plane_atomic_async_check(struct drm_plane *plane,
5ddb0bd4	81	struct drm_atomic_state *state)
920fffcc	82	{
5ddb0bd4 MR	83	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
5ddb0bd4 MR	84	plane);
920fffcc	85	struct drm_crtc_state *crtc_state;
551c5f55	86	int ret;
920fffcc	87
5ddb0bd4	88	if (plane != new_plane_state->crtc->cursor)
920fffcc BH	89	return -EINVAL;
	90
	91	if (!plane->state)
	92	return -EINVAL;
	93
	94	if (!plane->state->fb)
	95	return -EINVAL;
	96
5ddb0bd4 MR	97	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
5ddb0bd4 MR	98	to_mtk_plane_state(new_plane_state));
551c5f55 BH	99	if (ret)
	100	return ret;
	101
5ddb0bd4 MR	102	if (state)
	103	crtc_state = drm_atomic_get_existing_crtc_state(state,
	104	new_plane_state->crtc);
920fffcc	105	else /* Special case for asynchronous cursor updates. */
5ddb0bd4	106	crtc_state = new_plane_state->crtc->state;
920fffcc BH	107
	108	return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
	109	DRM_PLANE_HELPER_NO_SCALING,
	110	DRM_PLANE_HELPER_NO_SCALING,
	111	true, true);
	112	}
	113
1a64a7af	114	static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
	115	struct mtk_plane_state *mtk_plane_state)
	116	{
	117	struct drm_framebuffer *fb = new_state->fb;
	118	struct drm_gem_object *gem;
	119	struct mtk_drm_gem_obj *mtk_gem;
	120	unsigned int pitch, format;
	121	dma_addr_t addr;
	122
	123	gem = fb->obj[0];
	124	mtk_gem = to_mtk_gem_obj(gem);
	125	addr = mtk_gem->dma_addr;
	126	pitch = fb->pitches[0];
	127	format = fb->format->format;
	128
	129	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
	130	addr += (new_state->src.y1 >> 16) * pitch;
	131
	132	mtk_plane_state->pending.enable = true;
	133	mtk_plane_state->pending.pitch = pitch;
	134	mtk_plane_state->pending.format = format;
	135	mtk_plane_state->pending.addr = addr;
	136	mtk_plane_state->pending.x = new_state->dst.x1;
	137	mtk_plane_state->pending.y = new_state->dst.y1;
	138	mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
	139	mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
	140	mtk_plane_state->pending.rotation = new_state->rotation;
	141	}
	142
920fffcc	143	static void mtk_plane_atomic_async_update(struct drm_plane *plane,
5ddb0bd4	144	struct drm_atomic_state *state)
920fffcc	145	{
5ddb0bd4 MR	146	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
	147	plane);
	148	struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
920fffcc BH	149
	150	plane->state->crtc_x = new_state->crtc_x;
	151	plane->state->crtc_y = new_state->crtc_y;
	152	plane->state->crtc_h = new_state->crtc_h;
	153	plane->state->crtc_w = new_state->crtc_w;
	154	plane->state->src_x = new_state->src_x;
	155	plane->state->src_y = new_state->src_y;
	156	plane->state->src_h = new_state->src_h;
	157	plane->state->src_w = new_state->src_w;
c12b59ad	158	swap(plane->state->fb, new_state->fb);
920fffcc	159
1a64a7af	160	mtk_plane_update_new_state(new_state, new_plane_state);
	161	wmb(); /* Make sure the above parameters are set before update */
	162	new_plane_state->pending.async_dirty = true;
977697e2	163	mtk_drm_crtc_async_update(new_state->crtc, plane, state);
920fffcc BH	164	}
920fffcc BH	165
119f5173 CH	166	static const struct drm_plane_funcs mtk_plane_funcs = {
	167	.update_plane = drm_atomic_helper_update_plane,
	168	.disable_plane = drm_atomic_helper_disable_plane,
	169	.destroy = drm_plane_cleanup,
	170	.reset = mtk_plane_reset,
	171	.atomic_duplicate_state = mtk_plane_duplicate_state,
	172	.atomic_destroy_state = mtk_drm_plane_destroy_state,
	173	};
	174
	175	static int mtk_plane_atomic_check(struct drm_plane *plane,
7c11b99a	176	struct drm_atomic_state *state)
119f5173	177	{
7c11b99a MR	178	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
7c11b99a MR	179	plane);
ba5c1649	180	struct drm_framebuffer *fb = new_plane_state->fb;
119f5173	181	struct drm_crtc_state *crtc_state;
f7c710d1	182	int ret;
119f5173 CH	183
	184	if (!fb)
	185	return 0;
	186
ba5c1649	187	if (WARN_ON(!new_plane_state->crtc))
119f5173 CH	188	return 0;
119f5173 CH	189
ba5c1649 MR	190	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
ba5c1649 MR	191	to_mtk_plane_state(new_plane_state));
f7c710d1 SP	192	if (ret)
	193	return ret;
	194
dec92020	195	crtc_state = drm_atomic_get_crtc_state(state,
ba5c1649	196	new_plane_state->crtc);
119f5173 CH	197	if (IS_ERR(crtc_state))
	198	return PTR_ERR(crtc_state);
	199
ba5c1649 MR	200	return drm_atomic_helper_check_plane_state(new_plane_state,
ba5c1649 MR	201	crtc_state,
a01cb8ba VS	202	DRM_PLANE_HELPER_NO_SCALING,
	203	DRM_PLANE_HELPER_NO_SCALING,
	204	true, true);
119f5173 CH	205	}
119f5173 CH	206
c0b8892e	207	static void mtk_plane_atomic_disable(struct drm_plane *plane,
977697e2	208	struct drm_atomic_state *state)
c0b8892e	209	{
37418bf1 MR	210	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
37418bf1 MR	211	plane);
41016fe1 MR	212	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
41016fe1 MR	213	mtk_plane_state->pending.enable = false;
c0b8892e	214	wmb(); /* Make sure the above parameter is set before update */
41016fe1	215	mtk_plane_state->pending.dirty = true;
c0b8892e HYW	216	}
c0b8892e HYW	217
119f5173	218	static void mtk_plane_atomic_update(struct drm_plane *plane,
977697e2	219	struct drm_atomic_state *state)
119f5173	220	{
37418bf1 MR	221	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
37418bf1 MR	222	plane);
41016fe1	223	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
119f5173	224
1a64a7af	225	if (!new_state->crtc \|\| WARN_ON(!new_state->fb))
119f5173 CH	226	return;
119f5173 CH	227
e05162c0	228	if (!new_state->visible) {
977697e2	229	mtk_plane_atomic_disable(plane, state);
c0b8892e HYW	230	return;
	231	}
	232
1a64a7af	233	mtk_plane_update_new_state(new_state, mtk_plane_state);
f176cbf6	234	wmb(); /* Make sure the above parameters are set before update */
41016fe1	235	mtk_plane_state->pending.dirty = true;
119f5173 CH	236	}
119f5173 CH	237
119f5173 CH	238	static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
	239	.atomic_check = mtk_plane_atomic_check,
	240	.atomic_update = mtk_plane_atomic_update,
	241	.atomic_disable = mtk_plane_atomic_disable,
920fffcc BH	242	.atomic_async_update = mtk_plane_atomic_async_update,
920fffcc BH	243	.atomic_async_check = mtk_plane_atomic_async_check,
119f5173 CH	244	};
119f5173 CH	245
5bfafad8	246	int mtk_plane_init(struct drm_device dev, struct drm_plane plane,
ef87d3e2 SP	247	unsigned long possible_crtcs, enum drm_plane_type type,
ef87d3e2 SP	248	unsigned int supported_rotations)
119f5173 CH	249	{
	250	int err;
	251
5bfafad8	252	err = drm_universal_plane_init(dev, plane, possible_crtcs,
119f5173	253	&mtk_plane_funcs, formats,
e6fc3b68	254	ARRAY_SIZE(formats), NULL, type, NULL);
119f5173 CH	255	if (err) {
	256	DRM_ERROR("failed to initialize plane\n");
	257	return err;
	258	}
	259
ef87d3e2 SP	260	if (supported_rotations & ~DRM_MODE_ROTATE_0) {
	261	err = drm_plane_create_rotation_property(plane,
	262	DRM_MODE_ROTATE_0,
	263	supported_rotations);
	264	if (err)
	265	DRM_INFO("Create rotation property failed\n");
	266	}
	267
5bfafad8	268	drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
119f5173 CH	269
	270	return 0;
	271	}