diff options
Diffstat (limited to 'drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c')
| -rw-r--r-- | drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c | 948 |
1 files changed, 948 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c new file mode 100644 index 000000000000..80142d9a4a55 --- /dev/null +++ b/drivers/gpu/drm/imx/ipuv3/ipuv3-plane.c @@ -0,0 +1,948 @@ +// 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 = state->src.y1 >> 16; + + dma_obj = drm_fb_dma_get_gem_obj(fb, 2); + BUG_ON(!dma_obj); + + x /= fb->format->hsub; + y /= fb->format->vsub; + + return dma_obj->dma_addr + fb->offsets[2] + fb->pitches[2] * y + + fb->format->cpp[2] * x - eba; +} + +static void ipu_plane_put_resources(struct drm_device *dev, void *ptr) +{ + struct ipu_plane *ipu_plane = ptr; + + 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); +} + +static int ipu_plane_get_resources(struct drm_device *dev, + 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; + } + + ret = drmm_add_action_or_reset(dev, ipu_plane_put_resources, ipu_plane); + if (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); + return ret; + } + + 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); + return ret; + } + } + + return 0; +} + +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) +{ + int ret; + + DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__); + + ret = ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50); + if (ret == -ETIMEDOUT) { + DRM_ERROR("[PLANE:%d] IDMAC timeout\n", + ipu_plane->base.base.id); + } + + 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); + } +} + +static 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); + plane->state = NULL; + } + + ipu_state = kzalloc(sizeof(*ipu_state), GFP_KERNEL); + + if (ipu_state) + __drm_atomic_helper_plane_reset(plane, &ipu_state->base); +} + +static 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; +} + +static 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 bool ipu_plane_format_mod_supported(struct drm_plane *plane, + uint32_t format, uint64_t modifier) +{ + struct ipu_soc *ipu = to_ipu_plane(plane)->ipu; + + /* linear is supported for all planes and formats */ + if (modifier == DRM_FORMAT_MOD_LINEAR) + return true; + + /* + * Without a PRG the possible modifiers list only includes the linear + * modifier, so we always take the early return from this function and + * only end up here if the PRG is present. + */ + return ipu_prg_format_supported(ipu, format, modifier); +} + +static const struct drm_plane_funcs ipu_plane_funcs = { + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, + .reset = ipu_plane_state_reset, + .atomic_duplicate_state = ipu_plane_duplicate_state, + .atomic_destroy_state = ipu_plane_destroy_state, + .format_mod_supported = ipu_plane_format_mod_supported, +}; + +static int ipu_plane_atomic_check(struct drm_plane *plane, + struct drm_atomic_state *state) +{ + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, + plane); + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); + struct drm_crtc_state *crtc_state; + struct device *dev = plane->dev->dev; + struct drm_framebuffer *fb = new_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); + int ret; + + /* Ok to disable */ + if (!fb) + return 0; + + if (WARN_ON(!new_state->crtc)) + return -EINVAL; + + crtc_state = + drm_atomic_get_existing_crtc_state(state, + new_state->crtc); + if (WARN_ON(!crtc_state)) + return -EINVAL; + + ret = drm_atomic_helper_check_plane_state(new_state, crtc_state, + DRM_PLANE_NO_SCALING, + DRM_PLANE_NO_SCALING, + can_position, true); + if (ret) + return ret; + + /* nothing to check when disabling or disabled */ + if (!crtc_state->enable) + return 0; + + switch (plane->type) { + case DRM_PLANE_TYPE_PRIMARY: + /* full plane minimum width is 13 pixels */ + if (drm_rect_width(&new_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(&new_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(&new_state->dst) != drm_rect_width(&old_state->dst) || + drm_rect_height(&new_state->dst) != drm_rect_height(&old_state->dst) || + fb->format != old_fb->format)) + crtc_state->mode_changed = true; + + eba = drm_plane_state_to_eba(new_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; + + if (ALIGN(fb->width, 8) * fb->format->cpp[0] > + fb->pitches[0] + fb->offsets[0]) { + dev_warn(dev, "pitch is not big enough for 8 pixels alignment"); + return -EINVAL; + } + + 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(new_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; + + fallthrough; + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV16: + ubo = drm_plane_state_to_ubo(new_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. + */ + if (((new_state->src.x1 >> 16) & (fb->format->hsub - 1)) || + ((new_state->src.y1 >> 16) & (fb->format->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(new_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_atomic_state *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_calculate_bursts(u32 width, u32 cpp, u32 stride, + u8 *burstsize, u8 *num_bursts) +{ + const unsigned int width_bytes = width * cpp; + unsigned int npb, bursts; + + /* Maximum number of pixels per burst without overshooting stride */ + for (npb = 64 / cpp; npb > 0; --npb) { + if (round_up(width_bytes, npb * cpp) <= stride) + break; + } + *burstsize = npb; + + /* Maximum number of consecutive bursts without overshooting stride */ + for (bursts = 8; bursts > 1; bursts /= 2) { + if (round_up(width_bytes, npb * cpp * bursts) <= stride) + break; + } + *num_bursts = bursts; +} + +static void ipu_plane_atomic_update(struct drm_plane *plane, + struct drm_atomic_state *state) +{ + struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, + plane); + struct ipu_plane *ipu_plane = to_ipu_plane(plane); + struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, + plane); + struct ipu_plane_state *ipu_state = to_ipu_plane_state(new_state); + struct drm_crtc_state *crtc_state = new_state->crtc->state; + struct drm_framebuffer *fb = new_state->fb; + struct drm_rect *dst = &new_state->dst; + unsigned long eba, ubo, vbo; + unsigned long alpha_eba = 0; + enum ipu_color_space ics; + unsigned int axi_id = 0; + const struct drm_format_info *info; + u8 burstsize, num_bursts; + u32 width, height; + int active; + + if (ipu_plane->dp_flow == IPU_DP_FLOW_SYNC_FG) + ipu_dp_set_window_pos(ipu_plane->dp, dst->x1, dst->y1); + + switch (ipu_plane->dp_flow) { + case IPU_DP_FLOW_SYNC_BG: + if (new_state->normalized_zpos == 1) { + ipu_dp_set_global_alpha(ipu_plane->dp, + !fb->format->has_alpha, 0xff, + true); + } else { + ipu_dp_set_global_alpha(ipu_plane->dp, true, 0, true); + } + break; + case IPU_DP_FLOW_SYNC_FG: + if (new_state->normalized_zpos == 1) { + ipu_dp_set_global_alpha(ipu_plane->dp, + !fb->format->has_alpha, 0xff, + false); + } + break; + } + + if (ipu_plane->dp_flow == IPU_DP_FLOW_SYNC_BG) + width = ipu_src_rect_width(new_state); + else + width = drm_rect_width(&new_state->src) >> 16; + + eba = drm_plane_state_to_eba(new_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, width, + drm_rect_height(&new_state->src) >> 16, + fb->pitches[0], fb->format->format, + fb->modifier, &eba); + } + + if (!old_state->fb || + old_state->fb->format->format != fb->format->format || + old_state->color_encoding != new_state->color_encoding || + old_state->color_range != new_state->color_range) { + ics = ipu_drm_fourcc_to_colorspace(fb->format->format); + switch (ipu_plane->dp_flow) { + case IPU_DP_FLOW_SYNC_BG: + ipu_dp_setup_channel(ipu_plane->dp, new_state->color_encoding, + new_state->color_range, ics, + IPUV3_COLORSPACE_RGB); + break; + case IPU_DP_FLOW_SYNC_FG: + ipu_dp_setup_channel(ipu_plane->dp, new_state->color_encoding, + new_state->color_range, ics, + IPUV3_COLORSPACE_UNKNOWN); + break; + } + } + + 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; + } + + ics = ipu_drm_fourcc_to_colorspace(fb->format->format); + switch (ipu_plane->dp_flow) { + case IPU_DP_FLOW_SYNC_BG: + ipu_dp_setup_channel(ipu_plane->dp, DRM_COLOR_YCBCR_BT601, + DRM_COLOR_YCBCR_LIMITED_RANGE, ics, + IPUV3_COLORSPACE_RGB); + break; + case IPU_DP_FLOW_SYNC_FG: + ipu_dp_setup_channel(ipu_plane->dp, DRM_COLOR_YCBCR_BT601, + DRM_COLOR_YCBCR_LIMITED_RANGE, ics, + IPUV3_COLORSPACE_UNKNOWN); + break; + } + + ipu_dmfc_config_wait4eot(ipu_plane->dmfc, width); + + height = drm_rect_height(&new_state->src) >> 16; + info = drm_format_info(fb->format->format); + ipu_calculate_bursts(width, info->cpp[0], fb->pitches[0], + &burstsize, &num_bursts); + + ipu_cpmem_zero(ipu_plane->ipu_ch); + ipu_cpmem_set_resolution(ipu_plane->ipu_ch, width, height); + ipu_cpmem_set_fmt(ipu_plane->ipu_ch, fb->format->format); + ipu_cpmem_set_burstsize(ipu_plane->ipu_ch, burstsize); + ipu_cpmem_set_high_priority(ipu_plane->ipu_ch); + ipu_idmac_enable_watermark(ipu_plane->ipu_ch, true); + ipu_idmac_set_double_buffer(ipu_plane->ipu_ch, 1); + ipu_cpmem_set_stride(ipu_plane->ipu_ch, 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(new_state); + vbo = drm_plane_state_to_vbo(new_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, + new_state->src.x1 >> 16, new_state->src.y1 >> 16); + break; + case DRM_FORMAT_NV12: + case DRM_FORMAT_NV16: + ubo = drm_plane_state_to_ubo(new_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, + new_state->src.x1 >> 16, new_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(new_state, 1); + num_bursts = 0; + + dev_dbg(ipu_plane->base.dev->dev, "phys = %lu %lu, x = %d, y = %d", + eba, alpha_eba, new_state->src.x1 >> 16, + new_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, width, + drm_rect_height(&new_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, 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, new_state->src.x1 >> 16, new_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_idmac_lock_enable(ipu_plane->ipu_ch, num_bursts); + ipu_plane_enable(ipu_plane); +} + +static const struct drm_plane_helper_funcs ipu_plane_helper_funcs = { + .atomic_check = ipu_plane_atomic_check, + .atomic_disable = ipu_plane_atomic_disable, + .atomic_update = ipu_plane_atomic_update, +}; + +bool ipu_plane_atomic_update_pending(struct drm_plane *plane) +{ + 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); + + /* disabled crtcs must not block the update */ + if (!state->crtc) + return false; + + if (ipu_state->use_pre) + return ipu_prg_channel_configure_pending(ipu_plane->ipu_ch); + + /* + * Pretend no update is pending in the non-PRE/PRG case. For this to + * happen, an atomic update would have to be deferred until after the + * start of the next frame and simultaneously interrupt latency would + * have to be high enough to let the atomic update finish and issue an + * event before the previous end of frame interrupt handler can be + * executed. + */ + return false; +} +int ipu_planes_assign_pre(struct drm_device *dev, + struct drm_atomic_state *state) +{ + struct drm_crtc_state *old_crtc_state, *crtc_state; + struct drm_plane_state *plane_state; + struct ipu_plane_state *ipu_state; + struct ipu_plane *ipu_plane; + struct drm_plane *plane; + struct drm_crtc *crtc; + int available_pres = ipu_prg_max_active_channels(); + int ret, i; + + for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state, crtc_state, i) { + ret = drm_atomic_add_affected_planes(state, crtc); + if (ret) + return ret; + } + + /* + * We are going over the planes in 2 passes: first we assign PREs to + * planes with a tiling modifier, which need the PREs to resolve into + * linear. Any failure to assign a PRE there is fatal. In the second + * pass we try to assign PREs to linear FBs, to improve memory access + * patterns for them. Failure at this point is non-fatal, as we can + * scan out linear FBs without a PRE. + */ + for_each_new_plane_in_state(state, plane, plane_state, i) { + ipu_state = to_ipu_plane_state(plane_state); + ipu_plane = to_ipu_plane(plane); + + if (!plane_state->fb) { + ipu_state->use_pre = false; + continue; + } + + if (!(plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) || + plane_state->fb->modifier == DRM_FORMAT_MOD_LINEAR) + continue; + + if (!ipu_prg_present(ipu_plane->ipu) || !available_pres) + return -EINVAL; + + if (!ipu_prg_format_supported(ipu_plane->ipu, + plane_state->fb->format->format, + plane_state->fb->modifier)) + return -EINVAL; + + ipu_state->use_pre = true; + available_pres--; + } + + for_each_new_plane_in_state(state, plane, plane_state, i) { + ipu_state = to_ipu_plane_state(plane_state); + ipu_plane = to_ipu_plane(plane); + + if (!plane_state->fb) { + ipu_state->use_pre = false; + continue; + } + + if ((plane_state->fb->flags & DRM_MODE_FB_MODIFIERS) && + plane_state->fb->modifier != DRM_FORMAT_MOD_LINEAR) + continue; + + /* make sure that modifier is initialized */ + plane_state->fb->modifier = DRM_FORMAT_MOD_LINEAR; + + if (ipu_prg_present(ipu_plane->ipu) && available_pres && + 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; +} + +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; + const uint64_t *modifiers = ipu_format_modifiers; + unsigned int zpos = (type == DRM_PLANE_TYPE_PRIMARY) ? 0 : 1; + unsigned int format_count; + const uint32_t *formats; + int ret; + + DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n", + dma, dp, possible_crtcs); + + if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) { + formats = ipu_plane_all_formats; + format_count = ARRAY_SIZE(ipu_plane_all_formats); + } else { + formats = ipu_plane_rgb_formats; + format_count = ARRAY_SIZE(ipu_plane_rgb_formats); + } + + if (ipu_prg_present(ipu)) + modifiers = pre_format_modifiers; + + ipu_plane = drmm_universal_plane_alloc(dev, struct ipu_plane, base, + possible_crtcs, &ipu_plane_funcs, + formats, format_count, modifiers, + type, NULL); + if (IS_ERR(ipu_plane)) { + DRM_ERROR("failed to allocate and initialize %s plane\n", + zpos ? "overlay" : "primary"); + return ipu_plane; + } + + ipu_plane->ipu = ipu; + ipu_plane->dma = dma; + ipu_plane->dp_flow = dp; + + drm_plane_helper_add(&ipu_plane->base, &ipu_plane_helper_funcs); + + if (dp == IPU_DP_FLOW_SYNC_BG || dp == IPU_DP_FLOW_SYNC_FG) + ret = drm_plane_create_zpos_property(&ipu_plane->base, zpos, 0, + 1); + else + ret = drm_plane_create_zpos_immutable_property(&ipu_plane->base, + 0); + if (ret) + return ERR_PTR(ret); + + ret = drm_plane_create_color_properties(&ipu_plane->base, + BIT(DRM_COLOR_YCBCR_BT601) | + BIT(DRM_COLOR_YCBCR_BT709), + BIT(DRM_COLOR_YCBCR_LIMITED_RANGE), + DRM_COLOR_YCBCR_BT601, + DRM_COLOR_YCBCR_LIMITED_RANGE); + if (ret) + return ERR_PTR(ret); + + ret = ipu_plane_get_resources(dev, ipu_plane); + if (ret) { + DRM_ERROR("failed to get %s plane resources: %pe\n", + zpos ? "overlay" : "primary", &ret); + return ERR_PTR(ret); + } + + return ipu_plane; +} |