/* * (C) COPYRIGHT 2016 ARM Limited. All rights reserved. * Author: Liviu Dudau * * This program is free software and is provided to you under the terms of the * GNU General Public License version 2 as published by the Free Software * Foundation, and any use by you of this program is subject to the terms * of such GNU licence. * * ARM Mali DP plane manipulation routines. */ #include #include #include #include #include #include #include #include "malidp_hw.h" #include "malidp_drv.h" /* Layer specific register offsets */ #define MALIDP_LAYER_FORMAT 0x000 #define LAYER_FORMAT_MASK 0x3f #define MALIDP_LAYER_CONTROL 0x004 #define LAYER_ENABLE (1 << 0) #define LAYER_FLOWCFG_MASK 7 #define LAYER_FLOWCFG(x) (((x) & LAYER_FLOWCFG_MASK) << 1) #define LAYER_FLOWCFG_SCALE_SE 3 #define LAYER_ROT_OFFSET 8 #define LAYER_H_FLIP (1 << 10) #define LAYER_V_FLIP (1 << 11) #define LAYER_ROT_MASK (0xf << 8) #define LAYER_COMP_MASK (0x3 << 12) #define LAYER_COMP_PIXEL (0x3 << 12) #define LAYER_COMP_PLANE (0x2 << 12) #define LAYER_ALPHA_OFFSET (16) #define LAYER_ALPHA_MASK (0xff) #define LAYER_ALPHA(x) (((x) & LAYER_ALPHA_MASK) << LAYER_ALPHA_OFFSET) #define MALIDP_LAYER_COMPOSE 0x008 #define MALIDP_LAYER_SIZE 0x00c #define LAYER_H_VAL(x) (((x) & 0x1fff) << 0) #define LAYER_V_VAL(x) (((x) & 0x1fff) << 16) #define MALIDP_LAYER_COMP_SIZE 0x010 #define MALIDP_LAYER_OFFSET 0x014 #define MALIDP550_LS_ENABLE 0x01c #define MALIDP550_LS_R1_IN_SIZE 0x020 /* * This 4-entry look-up-table is used to determine the full 8-bit alpha value * for formats with 1- or 2-bit alpha channels. * We set it to give 100%/0% opacity for 1-bit formats and 100%/66%/33%/0% * opacity for 2-bit formats. */ #define MALIDP_ALPHA_LUT 0xffaa5500 static void malidp_de_plane_destroy(struct drm_plane *plane) { struct malidp_plane *mp = to_malidp_plane(plane); drm_plane_cleanup(plane); kfree(mp); } /* * Replicate what the default ->reset hook does: free the state pointer and * allocate a new empty object. We just need enough space to store * a malidp_plane_state instead of a drm_plane_state. */ static void malidp_plane_reset(struct drm_plane *plane) { struct malidp_plane_state *state = to_malidp_plane_state(plane->state); if (state) __drm_atomic_helper_plane_destroy_state(&state->base); kfree(state); plane->state = NULL; state = kzalloc(sizeof(*state), GFP_KERNEL); if (state) __drm_atomic_helper_plane_reset(plane, &state->base); } static struct drm_plane_state *malidp_duplicate_plane_state(struct drm_plane *plane) { struct malidp_plane_state *state, *m_state; if (!plane->state) return NULL; state = kmalloc(sizeof(*state), GFP_KERNEL); if (!state) return NULL; m_state = to_malidp_plane_state(plane->state); __drm_atomic_helper_plane_duplicate_state(plane, &state->base); state->rotmem_size = m_state->rotmem_size; state->format = m_state->format; state->n_planes = m_state->n_planes; return &state->base; } static void malidp_destroy_plane_state(struct drm_plane *plane, struct drm_plane_state *state) { struct malidp_plane_state *m_state = to_malidp_plane_state(state); __drm_atomic_helper_plane_destroy_state(state); kfree(m_state); } static void malidp_plane_atomic_print_state(struct drm_printer *p, const struct drm_plane_state *state) { struct malidp_plane_state *ms = to_malidp_plane_state(state); drm_printf(p, "\trotmem_size=%u\n", ms->rotmem_size); drm_printf(p, "\tformat_id=%u\n", ms->format); drm_printf(p, "\tn_planes=%u\n", ms->n_planes); } static const struct drm_plane_funcs malidp_de_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .destroy = malidp_de_plane_destroy, .reset = malidp_plane_reset, .atomic_duplicate_state = malidp_duplicate_plane_state, .atomic_destroy_state = malidp_destroy_plane_state, .atomic_print_state = malidp_plane_atomic_print_state, }; static int malidp_se_check_scaling(struct malidp_plane *mp, struct drm_plane_state *state) { struct drm_crtc_state *crtc_state = drm_atomic_get_existing_crtc_state(state->state, state->crtc); struct malidp_crtc_state *mc; u32 src_w, src_h; int ret; if (!crtc_state) return -EINVAL; mc = to_malidp_crtc_state(crtc_state); ret = drm_atomic_helper_check_plane_state(state, crtc_state, 0, INT_MAX, true, true); if (ret) return ret; if (state->rotation & MALIDP_ROTATED_MASK) { src_w = state->src_h >> 16; src_h = state->src_w >> 16; } else { src_w = state->src_w >> 16; src_h = state->src_h >> 16; } if ((state->crtc_w == src_w) && (state->crtc_h == src_h)) { /* Scaling not necessary for this plane. */ mc->scaled_planes_mask &= ~(mp->layer->id); return 0; } if (mp->layer->id & (DE_SMART | DE_GRAPHICS2)) return -EINVAL; mc->scaled_planes_mask |= mp->layer->id; /* Defer scaling requirements calculation to the crtc check. */ return 0; } static int malidp_de_plane_check(struct drm_plane *plane, struct drm_plane_state *state) { struct malidp_plane *mp = to_malidp_plane(plane); struct malidp_plane_state *ms = to_malidp_plane_state(state); bool rotated = state->rotation & MALIDP_ROTATED_MASK; struct drm_framebuffer *fb; int i, ret; if (!state->crtc || !state->fb) return 0; fb = state->fb; ms->format = malidp_hw_get_format_id(&mp->hwdev->hw->map, mp->layer->id, fb->format->format); if (ms->format == MALIDP_INVALID_FORMAT_ID) return -EINVAL; ms->n_planes = fb->format->num_planes; for (i = 0; i < ms->n_planes; i++) { u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated); if (fb->pitches[i] & (alignment - 1)) { DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n", fb->pitches[i], i); return -EINVAL; } } if ((state->crtc_w > mp->hwdev->max_line_size) || (state->crtc_h > mp->hwdev->max_line_size) || (state->crtc_w < mp->hwdev->min_line_size) || (state->crtc_h < mp->hwdev->min_line_size)) return -EINVAL; /* * DP550/650 video layers can accept 3 plane formats only if * fb->pitches[1] == fb->pitches[2] since they don't have a * third plane stride register. */ if (ms->n_planes == 3 && !(mp->hwdev->hw->features & MALIDP_DEVICE_LV_HAS_3_STRIDES) && (state->fb->pitches[1] != state->fb->pitches[2])) return -EINVAL; ret = malidp_se_check_scaling(mp, state); if (ret) return ret; /* packed RGB888 / BGR888 can't be rotated or flipped */ if (state->rotation != DRM_MODE_ROTATE_0 && (fb->format->format == DRM_FORMAT_RGB888 || fb->format->format == DRM_FORMAT_BGR888)) return -EINVAL; ms->rotmem_size = 0; if (state->rotation & MALIDP_ROTATED_MASK) { int val; val = mp->hwdev->hw->rotmem_required(mp->hwdev, state->crtc_w, state->crtc_h, fb->format->format); if (val < 0) return val; ms->rotmem_size = val; } return 0; } static void malidp_de_set_plane_pitches(struct malidp_plane *mp, int num_planes, unsigned int pitches[3]) { int i; int num_strides = num_planes; if (!mp->layer->stride_offset) return; if (num_planes == 3) num_strides = (mp->hwdev->hw->features & MALIDP_DEVICE_LV_HAS_3_STRIDES) ? 3 : 2; for (i = 0; i < num_strides; ++i) malidp_hw_write(mp->hwdev, pitches[i], mp->layer->base + mp->layer->stride_offset + i * 4); } static const s16 malidp_yuv2rgb_coeffs[][DRM_COLOR_RANGE_MAX][MALIDP_COLORADJ_NUM_COEFFS] = { [DRM_COLOR_YCBCR_BT601][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 1192, 0, 1634, 1192, -401, -832, 1192, 2066, 0, 64, 512, 512 }, [DRM_COLOR_YCBCR_BT601][DRM_COLOR_YCBCR_FULL_RANGE] = { 1024, 0, 1436, 1024, -352, -731, 1024, 1815, 0, 0, 512, 512 }, [DRM_COLOR_YCBCR_BT709][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 1192, 0, 1836, 1192, -218, -546, 1192, 2163, 0, 64, 512, 512 }, [DRM_COLOR_YCBCR_BT709][DRM_COLOR_YCBCR_FULL_RANGE] = { 1024, 0, 1613, 1024, -192, -479, 1024, 1900, 0, 0, 512, 512 }, [DRM_COLOR_YCBCR_BT2020][DRM_COLOR_YCBCR_LIMITED_RANGE] = { 1024, 0, 1476, 1024, -165, -572, 1024, 1884, 0, 0, 512, 512 }, [DRM_COLOR_YCBCR_BT2020][DRM_COLOR_YCBCR_FULL_RANGE] = { 1024, 0, 1510, 1024, -168, -585, 1024, 1927, 0, 0, 512, 512 } }; static void malidp_de_set_color_encoding(struct malidp_plane *plane, enum drm_color_encoding enc, enum drm_color_range range) { unsigned int i; for (i = 0; i < MALIDP_COLORADJ_NUM_COEFFS; i++) { /* coefficients are signed, two's complement values */ malidp_hw_write(plane->hwdev, malidp_yuv2rgb_coeffs[enc][range][i], plane->layer->base + plane->layer->yuv2rgb_offset + i * 4); } } static void malidp_de_plane_update(struct drm_plane *plane, struct drm_plane_state *old_state) { struct malidp_plane *mp; struct malidp_plane_state *ms = to_malidp_plane_state(plane->state); u32 src_w, src_h, dest_w, dest_h, val; int i; bool format_has_alpha = plane->state->fb->format->has_alpha; mp = to_malidp_plane(plane); /* convert src values from Q16 fixed point to integer */ src_w = plane->state->src_w >> 16; src_h = plane->state->src_h >> 16; dest_w = plane->state->crtc_w; dest_h = plane->state->crtc_h; val = malidp_hw_read(mp->hwdev, mp->layer->base); val = (val & ~LAYER_FORMAT_MASK) | ms->format; malidp_hw_write(mp->hwdev, val, mp->layer->base); for (i = 0; i < ms->n_planes; i++) { /* calculate the offset for the layer's plane registers */ u16 ptr = mp->layer->ptr + (i << 4); dma_addr_t fb_addr = drm_fb_cma_get_gem_addr(plane->state->fb, plane->state, i); malidp_hw_write(mp->hwdev, lower_32_bits(fb_addr), ptr); malidp_hw_write(mp->hwdev, upper_32_bits(fb_addr), ptr + 4); } malidp_de_set_plane_pitches(mp, ms->n_planes, plane->state->fb->pitches); if ((plane->state->color_encoding != old_state->color_encoding) || (plane->state->color_range != old_state->color_range)) malidp_de_set_color_encoding(mp, plane->state->color_encoding, plane->state->color_range); malidp_hw_write(mp->hwdev, LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h), mp->layer->base + MALIDP_LAYER_SIZE); malidp_hw_write(mp->hwdev, LAYER_H_VAL(dest_w) | LAYER_V_VAL(dest_h), mp->layer->base + MALIDP_LAYER_COMP_SIZE); malidp_hw_write(mp->hwdev, LAYER_H_VAL(plane->state->crtc_x) | LAYER_V_VAL(plane->state->crtc_y), mp->layer->base + MALIDP_LAYER_OFFSET); if (mp->layer->id == DE_SMART) malidp_hw_write(mp->hwdev, LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h), mp->layer->base + MALIDP550_LS_R1_IN_SIZE); /* first clear the rotation bits */ val = malidp_hw_read(mp->hwdev, mp->layer->base + MALIDP_LAYER_CONTROL); val &= ~LAYER_ROT_MASK; /* setup the rotation and axis flip bits */ if (plane->state->rotation & DRM_MODE_ROTATE_MASK) val |= ilog2(plane->state->rotation & DRM_MODE_ROTATE_MASK) << LAYER_ROT_OFFSET; if (plane->state->rotation & DRM_MODE_REFLECT_X) val |= LAYER_H_FLIP; if (plane->state->rotation & DRM_MODE_REFLECT_Y) val |= LAYER_V_FLIP; val &= ~LAYER_COMP_MASK; if (format_has_alpha) { /* * always enable pixel alpha blending until we have a way * to change blend modes */ val |= LAYER_COMP_PIXEL; } else { /* * do not enable pixel alpha blending as the color channel * does not have any alpha information */ val |= LAYER_COMP_PLANE; /* Set layer alpha coefficient to 0xff ie fully opaque */ val |= LAYER_ALPHA(0xff); } val &= ~LAYER_FLOWCFG(LAYER_FLOWCFG_MASK); if (plane->state->crtc) { struct malidp_crtc_state *m = to_malidp_crtc_state(plane->state->crtc->state); if (m->scaler_config.scale_enable && m->scaler_config.plane_src_id == mp->layer->id) val |= LAYER_FLOWCFG(LAYER_FLOWCFG_SCALE_SE); } /* set the 'enable layer' bit */ val |= LAYER_ENABLE; malidp_hw_write(mp->hwdev, val, mp->layer->base + MALIDP_LAYER_CONTROL); } static void malidp_de_plane_disable(struct drm_plane *plane, struct drm_plane_state *state) { struct malidp_plane *mp = to_malidp_plane(plane); malidp_hw_clearbits(mp->hwdev, LAYER_ENABLE | LAYER_FLOWCFG(LAYER_FLOWCFG_MASK), mp->layer->base + MALIDP_LAYER_CONTROL); } static const struct drm_plane_helper_funcs malidp_de_plane_helper_funcs = { .atomic_check = malidp_de_plane_check, .atomic_update = malidp_de_plane_update, .atomic_disable = malidp_de_plane_disable, }; int malidp_de_planes_init(struct drm_device *drm) { struct malidp_drm *malidp = drm->dev_private; const struct malidp_hw_regmap *map = &malidp->dev->hw->map; struct malidp_plane *plane = NULL; enum drm_plane_type plane_type; unsigned long crtcs = 1 << drm->mode_config.num_crtc; unsigned long flags = DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 | DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 | DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y; u32 *formats; int ret, i, j, n; formats = kcalloc(map->n_pixel_formats, sizeof(*formats), GFP_KERNEL); if (!formats) { ret = -ENOMEM; goto cleanup; } for (i = 0; i < map->n_layers; i++) { u8 id = map->layers[i].id; plane = kzalloc(sizeof(*plane), GFP_KERNEL); if (!plane) { ret = -ENOMEM; goto cleanup; } /* build the list of DRM supported formats based on the map */ for (n = 0, j = 0; j < map->n_pixel_formats; j++) { if ((map->pixel_formats[j].layer & id) == id) formats[n++] = map->pixel_formats[j].format; } plane_type = (i == 0) ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; ret = drm_universal_plane_init(drm, &plane->base, crtcs, &malidp_de_plane_funcs, formats, n, NULL, plane_type, NULL); if (ret < 0) goto cleanup; drm_plane_helper_add(&plane->base, &malidp_de_plane_helper_funcs); plane->hwdev = malidp->dev; plane->layer = &map->layers[i]; if (id == DE_SMART) { /* * Enable the first rectangle in the SMART layer to be * able to use it as a drm plane. */ malidp_hw_write(malidp->dev, 1, plane->layer->base + MALIDP550_LS_ENABLE); /* Skip the features which the SMART layer doesn't have. */ continue; } drm_plane_create_rotation_property(&plane->base, DRM_MODE_ROTATE_0, flags); malidp_hw_write(malidp->dev, MALIDP_ALPHA_LUT, plane->layer->base + MALIDP_LAYER_COMPOSE); /* Attach the YUV->RGB property only to video layers */ if (id & (DE_VIDEO1 | DE_VIDEO2)) { /* default encoding for YUV->RGB is BT601 NARROW */ enum drm_color_encoding enc = DRM_COLOR_YCBCR_BT601; enum drm_color_range range = DRM_COLOR_YCBCR_LIMITED_RANGE; ret = drm_plane_create_color_properties(&plane->base, BIT(DRM_COLOR_YCBCR_BT601) | \ BIT(DRM_COLOR_YCBCR_BT709) | \ BIT(DRM_COLOR_YCBCR_BT2020), BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) | \ BIT(DRM_COLOR_YCBCR_FULL_RANGE), enc, range); if (!ret) /* program the HW registers */ malidp_de_set_color_encoding(plane, enc, range); else DRM_WARN("Failed to create video layer %d color properties\n", id); } } kfree(formats); return 0; cleanup: kfree(formats); return ret; }