diff options
Diffstat (limited to 'drivers/gpu/drm/imx/ipuv3-plane.c')
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3-plane.c | 732 |
1 files changed, 0 insertions, 732 deletions
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3-plane.c deleted file mode 100644 index 6276bb834b4f..000000000000 --- a/drivers/gpu/drm/imx/ipuv3-plane.c +++ /dev/null @@ -1,732 +0,0 @@ -/* - * i.MX IPUv3 DP Overlay Planes - * - * Copyright (C) 2013 Philipp Zabel, Pengutronix - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <drm/drmP.h> -#include <drm/drm_atomic.h> -#include <drm/drm_atomic_helper.h> -#include <drm/drm_fb_cma_helper.h> -#include <drm/drm_gem_cma_helper.h> -#include <drm/drm_plane_helper.h> - -#include "video/imx-ipu-v3.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 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_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, -}; - -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_cma_object *cma_obj; - int x = state->src.x1 >> 16; - int y = state->src.y1 >> 16; - - cma_obj = drm_fb_cma_get_gem_obj(fb, plane); - BUG_ON(!cma_obj); - - return cma_obj->paddr + 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_cma_object *cma_obj; - unsigned long eba = drm_plane_state_to_eba(state, 0); - int x = state->src.x1 >> 16; - int y = state->src.y1 >> 16; - - cma_obj = drm_fb_cma_get_gem_obj(fb, 1); - BUG_ON(!cma_obj); - - x /= drm_format_horz_chroma_subsampling(fb->format->format); - y /= drm_format_vert_chroma_subsampling(fb->format->format); - - return cma_obj->paddr + 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_cma_object *cma_obj; - unsigned long eba = drm_plane_state_to_eba(state, 0); - int x = state->src.x1 >> 16; - int y = state->src.y1 >> 16; - - cma_obj = drm_fb_cma_get_gem_obj(fb, 2); - BUG_ON(!cma_obj); - - x /= drm_format_horz_chroma_subsampling(fb->format->format); - y /= drm_format_vert_chroma_subsampling(fb->format->format); - - return cma_obj->paddr + fb->offsets[2] + fb->pitches[2] * y + - fb->format->cpp[2] * x - eba; -} - -void ipu_plane_put_resources(struct ipu_plane *ipu_plane) -{ - if (!IS_ERR_OR_NULL(ipu_plane->dp)) - ipu_dp_put(ipu_plane->dp); - if (!IS_ERR_OR_NULL(ipu_plane->dmfc)) - ipu_dmfc_put(ipu_plane->dmfc); - if (!IS_ERR_OR_NULL(ipu_plane->ipu_ch)) - ipu_idmac_put(ipu_plane->ipu_ch); - if (!IS_ERR_OR_NULL(ipu_plane->alpha_ch)) - ipu_idmac_put(ipu_plane->alpha_ch); -} - -int ipu_plane_get_resources(struct ipu_plane *ipu_plane) -{ - int ret; - int alpha_ch; - - ipu_plane->ipu_ch = ipu_idmac_get(ipu_plane->ipu, ipu_plane->dma); - if (IS_ERR(ipu_plane->ipu_ch)) { - ret = PTR_ERR(ipu_plane->ipu_ch); - DRM_ERROR("failed to get idmac channel: %d\n", ret); - return ret; - } - - alpha_ch = ipu_channel_alpha_channel(ipu_plane->dma); - if (alpha_ch >= 0) { - ipu_plane->alpha_ch = ipu_idmac_get(ipu_plane->ipu, alpha_ch); - if (IS_ERR(ipu_plane->alpha_ch)) { - ret = PTR_ERR(ipu_plane->alpha_ch); - DRM_ERROR("failed to get alpha idmac channel %d: %d\n", - alpha_ch, ret); - return ret; - } - } - - ipu_plane->dmfc = ipu_dmfc_get(ipu_plane->ipu, ipu_plane->dma); - if (IS_ERR(ipu_plane->dmfc)) { - ret = PTR_ERR(ipu_plane->dmfc); - DRM_ERROR("failed to get dmfc: ret %d\n", ret); - goto err_out; - } - - if (ipu_plane->dp_flow >= 0) { - ipu_plane->dp = ipu_dp_get(ipu_plane->ipu, ipu_plane->dp_flow); - if (IS_ERR(ipu_plane->dp)) { - ret = PTR_ERR(ipu_plane->dp); - DRM_ERROR("failed to get dp flow: %d\n", ret); - goto err_out; - } - } - - return 0; -err_out: - ipu_plane_put_resources(ipu_plane); - - return ret; -} - -static bool ipu_plane_separate_alpha(struct ipu_plane *ipu_plane) -{ - switch (ipu_plane->base.state->fb->format->format) { - case DRM_FORMAT_RGB565_A8: - case DRM_FORMAT_BGR565_A8: - case DRM_FORMAT_RGB888_A8: - case DRM_FORMAT_BGR888_A8: - case DRM_FORMAT_RGBX8888_A8: - case DRM_FORMAT_BGRX8888_A8: - return true; - default: - return false; - } -} - -static void ipu_plane_enable(struct ipu_plane *ipu_plane) -{ - if (ipu_plane->dp) - ipu_dp_enable(ipu_plane->ipu); - ipu_dmfc_enable_channel(ipu_plane->dmfc); - ipu_idmac_enable_channel(ipu_plane->ipu_ch); - if (ipu_plane_separate_alpha(ipu_plane)) - ipu_idmac_enable_channel(ipu_plane->alpha_ch); - if (ipu_plane->dp) - ipu_dp_enable_channel(ipu_plane->dp); -} - -void ipu_plane_disable(struct ipu_plane *ipu_plane, bool disable_dp_channel) -{ - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50); - - if (ipu_plane->dp && disable_dp_channel) - ipu_dp_disable_channel(ipu_plane->dp, false); - ipu_idmac_disable_channel(ipu_plane->ipu_ch); - if (ipu_plane->alpha_ch) - ipu_idmac_disable_channel(ipu_plane->alpha_ch); - ipu_dmfc_disable_channel(ipu_plane->dmfc); - if (ipu_plane->dp) - ipu_dp_disable(ipu_plane->ipu); - if (ipu_prg_present(ipu_plane->ipu)) - ipu_prg_channel_disable(ipu_plane->ipu_ch); -} - -void ipu_plane_disable_deferred(struct drm_plane *plane) -{ - struct ipu_plane *ipu_plane = to_ipu_plane(plane); - - if (ipu_plane->disabling) { - ipu_plane->disabling = false; - ipu_plane_disable(ipu_plane, false); - } -} -EXPORT_SYMBOL_GPL(ipu_plane_disable_deferred); - -static void ipu_plane_destroy(struct drm_plane *plane) -{ - struct ipu_plane *ipu_plane = to_ipu_plane(plane); - - DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); - - drm_plane_cleanup(plane); - kfree(ipu_plane); -} - -void ipu_plane_state_reset(struct drm_plane *plane) -{ - struct ipu_plane_state *ipu_state; - - if (plane->state) { - ipu_state = to_ipu_plane_state(plane->state); - __drm_atomic_helper_plane_destroy_state(plane->state); - kfree(ipu_state); - } - - ipu_state = kzalloc(sizeof(*ipu_state), GFP_KERNEL); - - if (ipu_state) { - ipu_state->base.plane = plane; - ipu_state->base.rotation = DRM_MODE_ROTATE_0; - } - - plane->state = &ipu_state->base; -} - -struct drm_plane_state *ipu_plane_duplicate_state(struct drm_plane *plane) -{ - struct ipu_plane_state *state; - - if (WARN_ON(!plane->state)) - return NULL; - - state = kmalloc(sizeof(*state), GFP_KERNEL); - if (state) - __drm_atomic_helper_plane_duplicate_state(plane, &state->base); - - return &state->base; -} - -void ipu_plane_destroy_state(struct drm_plane *plane, - struct drm_plane_state *state) -{ - struct ipu_plane_state *ipu_state = to_ipu_plane_state(state); - - __drm_atomic_helper_plane_destroy_state(state); - kfree(ipu_state); -} - -static const struct drm_plane_funcs ipu_plane_funcs = { - .update_plane = drm_atomic_helper_update_plane, - .disable_plane = drm_atomic_helper_disable_plane, - .destroy = ipu_plane_destroy, - .reset = ipu_plane_state_reset, - .atomic_duplicate_state = ipu_plane_duplicate_state, - .atomic_destroy_state = ipu_plane_destroy_state, -}; - -static int ipu_plane_atomic_check(struct drm_plane *plane, - struct drm_plane_state *state) -{ - struct drm_plane_state *old_state = plane->state; - struct drm_crtc_state *crtc_state; - struct device *dev = plane->dev->dev; - struct drm_framebuffer *fb = state->fb; - struct drm_framebuffer *old_fb = old_state->fb; - unsigned long eba, ubo, vbo, old_ubo, old_vbo, alpha_eba; - bool can_position = (plane->type == DRM_PLANE_TYPE_OVERLAY); - struct drm_rect clip; - int hsub, vsub; - int ret; - - /* Ok to disable */ - if (!fb) - return 0; - - if (!state->crtc) - return -EINVAL; - - crtc_state = - drm_atomic_get_existing_crtc_state(state->state, state->crtc); - if (WARN_ON(!crtc_state)) - return -EINVAL; - - clip.x1 = 0; - clip.y1 = 0; - clip.x2 = crtc_state->adjusted_mode.hdisplay; - clip.y2 = crtc_state->adjusted_mode.vdisplay; - ret = drm_plane_helper_check_state(state, &clip, - DRM_PLANE_HELPER_NO_SCALING, - DRM_PLANE_HELPER_NO_SCALING, - can_position, true); - if (ret) - return ret; - - /* CRTC should be enabled */ - if (!crtc_state->enable) - return -EINVAL; - - switch (plane->type) { - case DRM_PLANE_TYPE_PRIMARY: - /* full plane minimum width is 13 pixels */ - if (drm_rect_width(&state->dst) < 13) - return -EINVAL; - break; - case DRM_PLANE_TYPE_OVERLAY: - break; - default: - dev_warn(dev, "Unsupported plane type %d\n", plane->type); - return -EINVAL; - } - - if (drm_rect_height(&state->dst) < 2) - return -EINVAL; - - /* - * We support resizing active plane or changing its format by - * forcing CRTC mode change in plane's ->atomic_check callback - * and disabling all affected active planes in CRTC's ->atomic_disable - * callback. The planes will be reenabled in plane's ->atomic_update - * callback. - */ - if (old_fb && - (drm_rect_width(&state->dst) != drm_rect_width(&old_state->dst) || - drm_rect_height(&state->dst) != drm_rect_height(&old_state->dst) || - fb->format != old_fb->format)) - crtc_state->mode_changed = true; - - eba = drm_plane_state_to_eba(state, 0); - - if (eba & 0x7) - return -EINVAL; - - if (fb->pitches[0] < 1 || fb->pitches[0] > 16384) - return -EINVAL; - - if (old_fb && fb->pitches[0] != old_fb->pitches[0]) - crtc_state->mode_changed = true; - - switch (fb->format->format) { - case DRM_FORMAT_YUV420: - case DRM_FORMAT_YVU420: - case DRM_FORMAT_YUV422: - case DRM_FORMAT_YVU422: - case DRM_FORMAT_YUV444: - case DRM_FORMAT_YVU444: - /* - * Multiplanar formats have to meet the following restrictions: - * - The (up to) three plane addresses are EBA, EBA+UBO, EBA+VBO - * - EBA, UBO and VBO are a multiple of 8 - * - UBO and VBO are unsigned and not larger than 0xfffff8 - * - Only EBA may be changed while scanout is active - * - The strides of U and V planes must be identical. - */ - vbo = drm_plane_state_to_vbo(state); - - if (vbo & 0x7 || vbo > 0xfffff8) - return -EINVAL; - - if (old_fb && (fb->format == old_fb->format)) { - old_vbo = drm_plane_state_to_vbo(old_state); - if (vbo != old_vbo) - crtc_state->mode_changed = true; - } - - if (fb->pitches[1] != fb->pitches[2]) - return -EINVAL; - - /* fall-through */ - case DRM_FORMAT_NV12: - case DRM_FORMAT_NV16: - ubo = drm_plane_state_to_ubo(state); - - if (ubo & 0x7 || ubo > 0xfffff8) - return -EINVAL; - - if (old_fb && (fb->format == old_fb->format)) { - old_ubo = drm_plane_state_to_ubo(old_state); - if (ubo != old_ubo) - crtc_state->mode_changed = true; - } - - if (fb->pitches[1] < 1 || fb->pitches[1] > 16384) - return -EINVAL; - - if (old_fb && old_fb->pitches[1] != fb->pitches[1]) - crtc_state->mode_changed = true; - - /* - * The x/y offsets must be even in case of horizontal/vertical - * chroma subsampling. - */ - hsub = drm_format_horz_chroma_subsampling(fb->format->format); - vsub = drm_format_vert_chroma_subsampling(fb->format->format); - if (((state->src.x1 >> 16) & (hsub - 1)) || - ((state->src.y1 >> 16) & (vsub - 1))) - return -EINVAL; - break; - case DRM_FORMAT_RGB565_A8: - case DRM_FORMAT_BGR565_A8: - case DRM_FORMAT_RGB888_A8: - case DRM_FORMAT_BGR888_A8: - case DRM_FORMAT_RGBX8888_A8: - case DRM_FORMAT_BGRX8888_A8: - alpha_eba = drm_plane_state_to_eba(state, 1); - if (alpha_eba & 0x7) - return -EINVAL; - - if (fb->pitches[1] < 1 || fb->pitches[1] > 16384) - return -EINVAL; - - if (old_fb && old_fb->pitches[1] != fb->pitches[1]) - crtc_state->mode_changed = true; - break; - } - - return 0; -} - -static void ipu_plane_atomic_disable(struct drm_plane *plane, - struct drm_plane_state *old_state) -{ - struct ipu_plane *ipu_plane = to_ipu_plane(plane); - - if (ipu_plane->dp) - ipu_dp_disable_channel(ipu_plane->dp, true); - ipu_plane->disabling = true; -} - -static int ipu_chan_assign_axi_id(int ipu_chan) -{ - switch (ipu_chan) { - case IPUV3_CHANNEL_MEM_BG_SYNC: - return 1; - case IPUV3_CHANNEL_MEM_FG_SYNC: - return 2; - case IPUV3_CHANNEL_MEM_DC_SYNC: - return 3; - default: - return 0; - } -} - -static void ipu_plane_atomic_update(struct drm_plane *plane, - struct drm_plane_state *old_state) -{ - struct ipu_plane *ipu_plane = to_ipu_plane(plane); - struct drm_plane_state *state = plane->state; - struct ipu_plane_state *ipu_state = to_ipu_plane_state(state); - struct drm_crtc_state *crtc_state = state->crtc->state; - struct drm_framebuffer *fb = state->fb; - struct drm_rect *dst = &state->dst; - unsigned long eba, ubo, vbo; - unsigned long alpha_eba = 0; - enum ipu_color_space ics; - unsigned int axi_id = 0; - int active; - - if (ipu_plane->dp_flow == IPU_DP_FLOW_SYNC_FG) - ipu_dp_set_window_pos(ipu_plane->dp, dst->x1, dst->y1); - - eba = drm_plane_state_to_eba(state, 0); - - /* - * Configure PRG channel and attached PRE, this changes the EBA to an - * internal SRAM location. - */ - if (ipu_state->use_pre) { - axi_id = ipu_chan_assign_axi_id(ipu_plane->dma); - ipu_prg_channel_configure(ipu_plane->ipu_ch, axi_id, - drm_rect_width(&state->src) >> 16, - drm_rect_height(&state->src) >> 16, - state->fb->pitches[0], - state->fb->format->format, &eba); - } - - if (old_state->fb && !drm_atomic_crtc_needs_modeset(crtc_state)) { - /* nothing to do if PRE is used */ - if (ipu_state->use_pre) - return; - active = ipu_idmac_get_current_buffer(ipu_plane->ipu_ch); - ipu_cpmem_set_buffer(ipu_plane->ipu_ch, !active, eba); - ipu_idmac_select_buffer(ipu_plane->ipu_ch, !active); - if (ipu_plane_separate_alpha(ipu_plane)) { - active = ipu_idmac_get_current_buffer(ipu_plane->alpha_ch); - ipu_cpmem_set_buffer(ipu_plane->alpha_ch, !active, - alpha_eba); - ipu_idmac_select_buffer(ipu_plane->alpha_ch, !active); - } - return; - } - - switch (ipu_plane->dp_flow) { - case IPU_DP_FLOW_SYNC_BG: - ipu_dp_setup_channel(ipu_plane->dp, - IPUV3_COLORSPACE_RGB, - IPUV3_COLORSPACE_RGB); - ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true); - break; - case IPU_DP_FLOW_SYNC_FG: - ics = ipu_drm_fourcc_to_colorspace(state->fb->format->format); - ipu_dp_setup_channel(ipu_plane->dp, ics, - IPUV3_COLORSPACE_UNKNOWN); - /* Enable local alpha on partial plane */ - switch (state->fb->format->format) { - case DRM_FORMAT_ARGB1555: - case DRM_FORMAT_ABGR1555: - case DRM_FORMAT_RGBA5551: - case DRM_FORMAT_BGRA5551: - case DRM_FORMAT_ARGB4444: - case DRM_FORMAT_ARGB8888: - case DRM_FORMAT_ABGR8888: - case DRM_FORMAT_RGBA8888: - case DRM_FORMAT_BGRA8888: - case DRM_FORMAT_RGB565_A8: - case DRM_FORMAT_BGR565_A8: - case DRM_FORMAT_RGB888_A8: - case DRM_FORMAT_BGR888_A8: - case DRM_FORMAT_RGBX8888_A8: - case DRM_FORMAT_BGRX8888_A8: - ipu_dp_set_global_alpha(ipu_plane->dp, false, 0, false); - break; - default: - ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true); - break; - } - } - - ipu_dmfc_config_wait4eot(ipu_plane->dmfc, drm_rect_width(dst)); - - ipu_cpmem_zero(ipu_plane->ipu_ch); - ipu_cpmem_set_resolution(ipu_plane->ipu_ch, - drm_rect_width(&state->src) >> 16, - drm_rect_height(&state->src) >> 16); - ipu_cpmem_set_fmt(ipu_plane->ipu_ch, state->fb->format->format); - ipu_cpmem_set_high_priority(ipu_plane->ipu_ch); - ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1); - ipu_cpmem_set_stride(ipu_plane->ipu_ch, state->fb->pitches[0]); - ipu_cpmem_set_axi_id(ipu_plane->ipu_ch, axi_id); - switch (fb->format->format) { - case DRM_FORMAT_YUV420: - case DRM_FORMAT_YVU420: - case DRM_FORMAT_YUV422: - case DRM_FORMAT_YVU422: - case DRM_FORMAT_YUV444: - case DRM_FORMAT_YVU444: - ubo = drm_plane_state_to_ubo(state); - vbo = drm_plane_state_to_vbo(state); - if (fb->format->format == DRM_FORMAT_YVU420 || - fb->format->format == DRM_FORMAT_YVU422 || - fb->format->format == DRM_FORMAT_YVU444) - swap(ubo, vbo); - - ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch, - fb->pitches[1], ubo, vbo); - - dev_dbg(ipu_plane->base.dev->dev, - "phy = %lu %lu %lu, x = %d, y = %d", eba, ubo, vbo, - state->src.x1 >> 16, state->src.y1 >> 16); - break; - case DRM_FORMAT_NV12: - case DRM_FORMAT_NV16: - ubo = drm_plane_state_to_ubo(state); - - ipu_cpmem_set_yuv_planar_full(ipu_plane->ipu_ch, - fb->pitches[1], ubo, ubo); - - dev_dbg(ipu_plane->base.dev->dev, - "phy = %lu %lu, x = %d, y = %d", eba, ubo, - state->src.x1 >> 16, state->src.y1 >> 16); - break; - case DRM_FORMAT_RGB565_A8: - case DRM_FORMAT_BGR565_A8: - case DRM_FORMAT_RGB888_A8: - case DRM_FORMAT_BGR888_A8: - case DRM_FORMAT_RGBX8888_A8: - case DRM_FORMAT_BGRX8888_A8: - alpha_eba = drm_plane_state_to_eba(state, 1); - - dev_dbg(ipu_plane->base.dev->dev, "phys = %lu %lu, x = %d, y = %d", - eba, alpha_eba, state->src.x1 >> 16, state->src.y1 >> 16); - - ipu_cpmem_set_burstsize(ipu_plane->ipu_ch, 16); - - ipu_cpmem_zero(ipu_plane->alpha_ch); - ipu_cpmem_set_resolution(ipu_plane->alpha_ch, - drm_rect_width(&state->src) >> 16, - drm_rect_height(&state->src) >> 16); - ipu_cpmem_set_format_passthrough(ipu_plane->alpha_ch, 8); - ipu_cpmem_set_high_priority(ipu_plane->alpha_ch); - ipu_idmac_set_double_buffer(ipu_plane->alpha_ch, 1); - ipu_cpmem_set_stride(ipu_plane->alpha_ch, - state->fb->pitches[1]); - ipu_cpmem_set_burstsize(ipu_plane->alpha_ch, 16); - ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 0, alpha_eba); - ipu_cpmem_set_buffer(ipu_plane->alpha_ch, 1, alpha_eba); - break; - default: - dev_dbg(ipu_plane->base.dev->dev, "phys = %lu, x = %d, y = %d", - eba, state->src.x1 >> 16, state->src.y1 >> 16); - break; - } - ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 0, eba); - ipu_cpmem_set_buffer(ipu_plane->ipu_ch, 1, eba); - ipu_plane_enable(ipu_plane); -} - -static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { - .prepare_fb = drm_fb_cma_prepare_fb, - .atomic_check = ipu_plane_atomic_check, - .atomic_disable = ipu_plane_atomic_disable, - .atomic_update = ipu_plane_atomic_update, -}; - -int ipu_planes_assign_pre(struct drm_device *dev, - struct drm_atomic_state *state) -{ - struct drm_plane_state *plane_state; - struct drm_plane *plane; - int available_pres = ipu_prg_max_active_channels(); - int i; - - for_each_plane_in_state(state, plane, plane_state, i) { - struct ipu_plane_state *ipu_state = - to_ipu_plane_state(plane_state); - struct ipu_plane *ipu_plane = to_ipu_plane(plane); - - if (ipu_prg_present(ipu_plane->ipu) && available_pres && - plane_state->fb && - ipu_prg_format_supported(ipu_plane->ipu, - plane_state->fb->format->format, - plane_state->fb->modifier)) { - ipu_state->use_pre = true; - available_pres--; - } else { - ipu_state->use_pre = false; - } - } - - return 0; -} -EXPORT_SYMBOL_GPL(ipu_planes_assign_pre); - -struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu, - int dma, int dp, unsigned int possible_crtcs, - enum drm_plane_type type) -{ - struct ipu_plane *ipu_plane; - int ret; - - DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n", - dma, dp, possible_crtcs); - - ipu_plane = kzalloc(sizeof(*ipu_plane), GFP_KERNEL); - if (!ipu_plane) { - DRM_ERROR("failed to allocate plane\n"); - return ERR_PTR(-ENOMEM); - } - - ipu_plane->ipu = ipu; - ipu_plane->dma = dma; - ipu_plane->dp_flow = dp; - - ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs, - &ipu_plane_funcs, ipu_plane_formats, - ARRAY_SIZE(ipu_plane_formats), type, - NULL); - if (ret) { - DRM_ERROR("failed to initialize plane\n"); - kfree(ipu_plane); - return ERR_PTR(ret); - } - - drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); - - return ipu_plane; -} |