path: root/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * i.MX IPUv3 DP Overlay Planes
 *
 * Copyright (C) 2013 Philipp Zabel, Pengutronix
 */

#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_blend.h>
#include <drm/drm_fb_dma_helper.h>
#include <drm/drm_fourcc.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem_atomic_helper.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_managed.h>

#include <video/imx-ipu-v3.h>

#include "imx-drm.h"
#include "ipuv3-plane.h"

struct ipu_plane_state {
	struct drm_plane_state base;
	bool use_pre;
};

static inline struct ipu_plane_state *
to_ipu_plane_state(struct drm_plane_state *p)
{
	return container_of(p, struct ipu_plane_state, base);
}

static unsigned int ipu_src_rect_width(const struct drm_plane_state *state)
{
	return ALIGN(drm_rect_width(&state->src) >> 16, 8);
}

static inline struct ipu_plane *to_ipu_plane(struct drm_plane *p)
{
	return container_of(p, struct ipu_plane, base);
}

static const uint32_t ipu_plane_all_formats[] = {
	DRM_FORMAT_ARGB1555,
	DRM_FORMAT_XRGB1555,
	DRM_FORMAT_ABGR1555,
	DRM_FORMAT_XBGR1555,
	DRM_FORMAT_RGBA5551,
	DRM_FORMAT_BGRA5551,
	DRM_FORMAT_ARGB4444,
	DRM_FORMAT_ARGB8888,
	DRM_FORMAT_XRGB8888,
	DRM_FORMAT_ABGR8888,
	DRM_FORMAT_XBGR8888,
	DRM_FORMAT_RGBA8888,
	DRM_FORMAT_RGBX8888,
	DRM_FORMAT_BGRA8888,
	DRM_FORMAT_BGRX8888,
	DRM_FORMAT_UYVY,
	DRM_FORMAT_VYUY,
	DRM_FORMAT_YUYV,
	DRM_FORMAT_YVYU,
	DRM_FORMAT_YUV420,
	DRM_FORMAT_YVU420,
	DRM_FORMAT_YUV422,
	DRM_FORMAT_YVU422,
	DRM_FORMAT_YUV444,
	DRM_FORMAT_YVU444,
	DRM_FORMAT_NV12,
	DRM_FORMAT_NV16,
	DRM_FORMAT_RGB565,
	DRM_FORMAT_RGB565_A8,
	DRM_FORMAT_BGR565_A8,
	DRM_FORMAT_RGB888_A8,
	DRM_FORMAT_BGR888_A8,
	DRM_FORMAT_RGBX8888_A8,
	DRM_FORMAT_BGRX8888_A8,
};

static const uint32_t ipu_plane_rgb_formats[] = {
	DRM_FORMAT_ARGB1555,
	DRM_FORMAT_XRGB1555,
	DRM_FORMAT_ABGR1555,
	DRM_FORMAT_XBGR1555,
	DRM_FORMAT_RGBA5551,
	DRM_FORMAT_BGRA5551,
	DRM_FORMAT_ARGB4444,
	DRM_FORMAT_ARGB8888,
	DRM_FORMAT_XRGB8888,
	DRM_FORMAT_ABGR8888,
	DRM_FORMAT_XBGR8888,
	DRM_FORMAT_RGBA8888,
	DRM_FORMAT_RGBX8888,
	DRM_FORMAT_BGRA8888,
	DRM_FORMAT_BGRX8888,
	DRM_FORMAT_RGB565,
	DRM_FORMAT_RGB565_A8,
	DRM_FORMAT_BGR565_A8,
	DRM_FORMAT_RGB888_A8,
	DRM_FORMAT_BGR888_A8,
	DRM_FORMAT_RGBX8888_A8,
	DRM_FORMAT_BGRX8888_A8,
};

static const uint64_t ipu_format_modifiers[] = {
	DRM_FORMAT_MOD_LINEAR,
	DRM_FORMAT_MOD_INVALID
};

static const uint64_t pre_format_modifiers[] = {
	DRM_FORMAT_MOD_LINEAR,
	DRM_FORMAT_MOD_VIVANTE_TILED,
	DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
	DRM_FORMAT_MOD_INVALID
};

int ipu_plane_irq(struct ipu_plane *ipu_plane)
{
	return ipu_idmac_channel_irq(ipu_plane->ipu, ipu_plane->ipu_ch,
				     IPU_IRQ_EOF);
}

static inline unsigned long
drm_plane_state_to_eba(struct drm_plane_state *state, int plane)
{
	struct drm_framebuffer *fb = state->fb;
	struct drm_gem_dma_object *dma_obj;
	int x = state->src.x1 >> 16;
	int y = state->src.y1 >> 16;

	dma_obj = drm_fb_dma_get_gem_obj(fb, plane);
	BUG_ON(!dma_obj);

	return dma_obj->dma_addr + fb->offsets[plane] + fb->pitches[plane] * y +
	       fb->format->cpp[plane] * x;
}

static inline unsigned long
drm_plane_state_to_ubo(struct drm_plane_state *state)
{
	struct drm_framebuffer *fb = state->fb;
	struct drm_gem_dma_object *dma_obj;
	unsigned long eba = drm_plane_state_to_eba(state, 0);
	int x = state->src.x1 >> 16;
	int y = state->src.y1 >> 16;

	dma_obj = drm_fb_dma_get_gem_obj(fb, 1);
	BUG_ON(!dma_obj);

	x /= fb->format->hsub;
	y /= fb->format->vsub;

	return dma_obj->dma_addr + fb->offsets[1] + fb->pitches[1] * y +
	       fb->format->cpp[1] * x - eba;
}

static inline unsigned long
drm_plane_state_to_vbo(struct drm_plane_state *state)
{
	struct drm_framebuffer *fb = state->fb;
	struct drm_gem_dma_object *dma_obj;
	unsigned long eba = drm_plane_state_to_eba(state, 0);
	int x = state->src.x1 >> 16;
	int y