342 lines
9.8 KiB
C
342 lines
9.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2015 MediaTek Inc.
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* Author: CK Hu <ck.hu@mediatek.com>
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*/
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#include <drm/drm_atomic.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_atomic_uapi.h>
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#include <drm/drm_blend.h>
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#include <drm/drm_fourcc.h>
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#include <drm/drm_framebuffer.h>
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#include <drm/drm_gem_atomic_helper.h>
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#include <linux/align.h>
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#include "mtk_drm_crtc.h"
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#include "mtk_drm_ddp_comp.h"
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#include "mtk_drm_drv.h"
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#include "mtk_drm_gem.h"
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#include "mtk_drm_plane.h"
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static const u32 formats[] = {
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DRM_FORMAT_XRGB8888,
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DRM_FORMAT_ARGB8888,
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DRM_FORMAT_BGRX8888,
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DRM_FORMAT_BGRA8888,
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DRM_FORMAT_ABGR8888,
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DRM_FORMAT_XBGR8888,
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DRM_FORMAT_RGB888,
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DRM_FORMAT_BGR888,
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DRM_FORMAT_RGB565,
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DRM_FORMAT_UYVY,
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DRM_FORMAT_YUYV,
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};
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static const u64 modifiers[] = {
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DRM_FORMAT_MOD_LINEAR,
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DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
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AFBC_FORMAT_MOD_SPLIT |
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AFBC_FORMAT_MOD_SPARSE),
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DRM_FORMAT_MOD_INVALID,
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};
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static void mtk_plane_reset(struct drm_plane *plane)
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{
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struct mtk_plane_state *state;
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if (plane->state) {
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__drm_atomic_helper_plane_destroy_state(plane->state);
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state = to_mtk_plane_state(plane->state);
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memset(state, 0, sizeof(*state));
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} else {
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state = kzalloc(sizeof(*state), GFP_KERNEL);
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if (!state)
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return;
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}
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__drm_atomic_helper_plane_reset(plane, &state->base);
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state->base.plane = plane;
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state->pending.format = DRM_FORMAT_RGB565;
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state->pending.modifier = DRM_FORMAT_MOD_LINEAR;
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}
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static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
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{
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struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
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struct mtk_plane_state *state;
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state = kmalloc(sizeof(*state), GFP_KERNEL);
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if (!state)
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return NULL;
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__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
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WARN_ON(state->base.plane != plane);
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state->pending = old_state->pending;
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return &state->base;
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}
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static bool mtk_plane_format_mod_supported(struct drm_plane *plane,
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uint32_t format,
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uint64_t modifier)
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{
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if (modifier == DRM_FORMAT_MOD_LINEAR)
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return true;
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if (modifier != DRM_FORMAT_MOD_ARM_AFBC(
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AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
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AFBC_FORMAT_MOD_SPLIT |
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AFBC_FORMAT_MOD_SPARSE))
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return false;
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if (format != DRM_FORMAT_XRGB8888 &&
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format != DRM_FORMAT_ARGB8888 &&
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format != DRM_FORMAT_BGRX8888 &&
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format != DRM_FORMAT_BGRA8888 &&
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format != DRM_FORMAT_ABGR8888 &&
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format != DRM_FORMAT_XBGR8888 &&
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format != DRM_FORMAT_RGB888 &&
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format != DRM_FORMAT_BGR888)
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return false;
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return true;
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}
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static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
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struct drm_plane_state *state)
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{
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__drm_atomic_helper_plane_destroy_state(state);
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kfree(to_mtk_plane_state(state));
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}
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static int mtk_plane_atomic_async_check(struct drm_plane *plane,
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struct drm_atomic_state *state)
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{
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struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
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plane);
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struct drm_crtc_state *crtc_state;
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int ret;
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if (plane != new_plane_state->crtc->cursor)
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return -EINVAL;
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if (!plane->state)
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return -EINVAL;
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if (!plane->state->fb)
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return -EINVAL;
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ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
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to_mtk_plane_state(new_plane_state));
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if (ret)
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return ret;
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if (state)
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crtc_state = drm_atomic_get_existing_crtc_state(state,
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new_plane_state->crtc);
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else /* Special case for asynchronous cursor updates. */
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crtc_state = new_plane_state->crtc->state;
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return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
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DRM_PLANE_NO_SCALING,
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DRM_PLANE_NO_SCALING,
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true, true);
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}
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static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
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struct mtk_plane_state *mtk_plane_state)
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{
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struct drm_framebuffer *fb = new_state->fb;
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struct drm_gem_object *gem;
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struct mtk_drm_gem_obj *mtk_gem;
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unsigned int pitch, format;
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u64 modifier;
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dma_addr_t addr;
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dma_addr_t hdr_addr = 0;
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unsigned int hdr_pitch = 0;
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gem = fb->obj[0];
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mtk_gem = to_mtk_gem_obj(gem);
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addr = mtk_gem->dma_addr;
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pitch = fb->pitches[0];
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format = fb->format->format;
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modifier = fb->modifier;
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if (modifier == DRM_FORMAT_MOD_LINEAR) {
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addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
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addr += (new_state->src.y1 >> 16) * pitch;
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} else {
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int width_in_blocks = ALIGN(fb->width, AFBC_DATA_BLOCK_WIDTH)
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/ AFBC_DATA_BLOCK_WIDTH;
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int height_in_blocks = ALIGN(fb->height, AFBC_DATA_BLOCK_HEIGHT)
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/ AFBC_DATA_BLOCK_HEIGHT;
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int x_offset_in_blocks = (new_state->src.x1 >> 16) / AFBC_DATA_BLOCK_WIDTH;
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int y_offset_in_blocks = (new_state->src.y1 >> 16) / AFBC_DATA_BLOCK_HEIGHT;
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int hdr_size;
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hdr_pitch = width_in_blocks * AFBC_HEADER_BLOCK_SIZE;
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pitch = width_in_blocks * AFBC_DATA_BLOCK_WIDTH *
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AFBC_DATA_BLOCK_HEIGHT * fb->format->cpp[0];
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hdr_size = ALIGN(hdr_pitch * height_in_blocks, AFBC_HEADER_ALIGNMENT);
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hdr_addr = addr + hdr_pitch * y_offset_in_blocks +
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AFBC_HEADER_BLOCK_SIZE * x_offset_in_blocks;
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/* The data plane is offset by 1 additional block. */
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addr = addr + hdr_size +
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pitch * y_offset_in_blocks +
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AFBC_DATA_BLOCK_WIDTH * AFBC_DATA_BLOCK_HEIGHT *
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fb->format->cpp[0] * (x_offset_in_blocks + 1);
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}
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mtk_plane_state->pending.enable = true;
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mtk_plane_state->pending.pitch = pitch;
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mtk_plane_state->pending.hdr_pitch = hdr_pitch;
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mtk_plane_state->pending.format = format;
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mtk_plane_state->pending.modifier = modifier;
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mtk_plane_state->pending.addr = addr;
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mtk_plane_state->pending.hdr_addr = hdr_addr;
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mtk_plane_state->pending.x = new_state->dst.x1;
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mtk_plane_state->pending.y = new_state->dst.y1;
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mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
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mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
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mtk_plane_state->pending.rotation = new_state->rotation;
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mtk_plane_state->pending.color_encoding = new_state->color_encoding;
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}
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static void mtk_plane_atomic_async_update(struct drm_plane *plane,
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struct drm_atomic_state *state)
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{
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struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
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plane);
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struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
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plane->state->crtc_x = new_state->crtc_x;
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plane->state->crtc_y = new_state->crtc_y;
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plane->state->crtc_h = new_state->crtc_h;
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plane->state->crtc_w = new_state->crtc_w;
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plane->state->src_x = new_state->src_x;
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plane->state->src_y = new_state->src_y;
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plane->state->src_h = new_state->src_h;
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plane->state->src_w = new_state->src_w;
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swap(plane->state->fb, new_state->fb);
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mtk_plane_update_new_state(new_state, new_plane_state);
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wmb(); /* Make sure the above parameters are set before update */
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new_plane_state->pending.async_dirty = true;
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mtk_drm_crtc_async_update(new_state->crtc, plane, state);
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}
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static const struct drm_plane_funcs mtk_plane_funcs = {
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.update_plane = drm_atomic_helper_update_plane,
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.disable_plane = drm_atomic_helper_disable_plane,
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.destroy = drm_plane_cleanup,
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.reset = mtk_plane_reset,
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.atomic_duplicate_state = mtk_plane_duplicate_state,
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.atomic_destroy_state = mtk_drm_plane_destroy_state,
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.format_mod_supported = mtk_plane_format_mod_supported,
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};
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static int mtk_plane_atomic_check(struct drm_plane *plane,
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struct drm_atomic_state *state)
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{
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struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
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plane);
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struct drm_framebuffer *fb = new_plane_state->fb;
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struct drm_crtc_state *crtc_state;
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int ret;
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if (!fb)
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return 0;
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if (WARN_ON(!new_plane_state->crtc))
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return 0;
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ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
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to_mtk_plane_state(new_plane_state));
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if (ret)
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return ret;
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crtc_state = drm_atomic_get_crtc_state(state,
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new_plane_state->crtc);
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if (IS_ERR(crtc_state))
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return PTR_ERR(crtc_state);
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return drm_atomic_helper_check_plane_state(new_plane_state,
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crtc_state,
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DRM_PLANE_NO_SCALING,
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DRM_PLANE_NO_SCALING,
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true, true);
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}
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static void mtk_plane_atomic_disable(struct drm_plane *plane,
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struct drm_atomic_state *state)
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{
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struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
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plane);
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struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
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mtk_plane_state->pending.enable = false;
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wmb(); /* Make sure the above parameter is set before update */
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mtk_plane_state->pending.dirty = true;
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}
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static void mtk_plane_atomic_update(struct drm_plane *plane,
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struct drm_atomic_state *state)
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{
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struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
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plane);
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struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
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if (!new_state->crtc || WARN_ON(!new_state->fb))
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return;
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if (!new_state->visible) {
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mtk_plane_atomic_disable(plane, state);
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return;
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}
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mtk_plane_update_new_state(new_state, mtk_plane_state);
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wmb(); /* Make sure the above parameters are set before update */
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mtk_plane_state->pending.dirty = true;
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}
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static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
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.atomic_check = mtk_plane_atomic_check,
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.atomic_update = mtk_plane_atomic_update,
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.atomic_disable = mtk_plane_atomic_disable,
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.atomic_async_update = mtk_plane_atomic_async_update,
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.atomic_async_check = mtk_plane_atomic_async_check,
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};
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int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
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unsigned long possible_crtcs, enum drm_plane_type type,
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unsigned int supported_rotations)
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{
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int err;
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err = drm_universal_plane_init(dev, plane, possible_crtcs,
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&mtk_plane_funcs, formats,
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ARRAY_SIZE(formats), modifiers, type, NULL);
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if (err) {
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DRM_ERROR("failed to initialize plane\n");
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return err;
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}
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if (supported_rotations & ~DRM_MODE_ROTATE_0) {
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err = drm_plane_create_rotation_property(plane,
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DRM_MODE_ROTATE_0,
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supported_rotations);
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if (err)
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DRM_INFO("Create rotation property failed\n");
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}
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drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
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return 0;
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}
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