[PATCH v2 3/8] drm/rockchip: Convert to support atomic API

Rockchip vop not support hw vblank counter, needed check the committed register if it's really take effect.

Signed-off-by: Mark Yao mark.yao@rock-chips.com Signed-off-by: Tomasz Figa tfiga@chromium.org --- Changes in v2: - Optimization commit planes sequence. - Get vblank count on atomic_begin to protect vblank event. Adviced by Daniel Stone - Direct return -EINVAL when yuv address is not support, instead of adjust it. - code formating and cleanup. Adviced by Thierry Reding & Daniel Vetter - Hook mode_set into crtc enable instead of hack crtc enable on mode set.

drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 5 +- drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 2 + drivers/gpu/drm/rockchip/rockchip_drm_fb.c | 80 ++++ drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 647 +++++++++++---------------- 4 files changed, 343 insertions(+), 391 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index cfd9b83..ab3e0f6 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -213,6 +213,8 @@ static int rockchip_drm_load(struct drm_device *drm_dev, unsigned long flags) */ drm_dev->vblank_disable_allowed = true;

+ drm_mode_config_reset(drm_dev); + ret = rockchip_drm_fbdev_init(drm_dev); if (ret) goto err_vblank_cleanup; @@ -276,7 +278,8 @@ const struct vm_operations_struct rockchip_drm_vm_ops = { };

static struct drm_driver rockchip_drm_driver = { - .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, + .driver_features = DRIVER_MODESET | DRIVER_GEM | + DRIVER_PRIME | DRIVER_ATOMIC, .load = rockchip_drm_load, .unload = rockchip_drm_unload, .lastclose = rockchip_drm_lastclose, diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h index 069d6d4..513ff98 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h @@ -18,6 +18,7 @@ #define _ROCKCHIP_DRM_DRV_H

#include <drm/drm_fb_helper.h> +#include <drm/drm_atomic_helper.h> #include <drm/drm_gem.h>

#include <linux/module.h> @@ -63,5 +64,6 @@ int rockchip_drm_dma_attach_device(struct drm_device *drm_dev, struct device *dev); void rockchip_drm_dma_detach_device(struct drm_device *drm_dev, struct device *dev); +void rockchip_crtc_wait_for_update(struct drm_crtc *crtc);

#endif /* _ROCKCHIP_DRM_DRV_H_ */ diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c index b8ac591..9aca778 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fb.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fb.c @@ -15,6 +15,7 @@ #include <linux/kernel.h> #include <drm/drm.h> #include <drm/drmP.h> +#include <drm/drm_atomic.h> #include <drm/drm_fb_helper.h> #include <drm/drm_crtc_helper.h>

@@ -166,9 +167,88 @@ static void rockchip_drm_output_poll_changed(struct drm_device *dev) drm_fb_helper_hotplug_event(fb_helper); }

+static void rockchip_atomic_wait_for_complete(struct drm_atomic_state *state) +{ + struct drm_crtc_state *crtc_state; + struct drm_crtc *crtc; + int i; + + for_each_crtc_in_state(state, crtc, crtc_state, i) { + if (!crtc->state->active) + continue; + + WARN_ON(drm_crtc_vblank_get(crtc)); + } + + for_each_crtc_in_state(state, crtc, crtc_state, i) { + if (!crtc->state->active) + continue; + + rockchip_crtc_wait_for_update(crtc); + } + + for_each_crtc_in_state(state, crtc, crtc_state, i) { + if (!crtc->state->active) + continue; + + drm_crtc_vblank_put(crtc); + } +} + +int rockchip_drm_atomic_commit(struct drm_device *dev, + struct drm_atomic_state *state, + bool async) +{ + int ret; + + if (async) + return -EBUSY; + + ret = drm_atomic_helper_prepare_planes(dev, state); + if (ret) + return ret; + + drm_atomic_helper_swap_state(dev, state); + + /* + * TODO: do fence wait here. + */ + + /* + * Rockchip crtc support runtime PM, can't update display planes + * when crtc is disabled. + * + * drm_atomic_helper_commit comments detail that: + * For drivers supporting runtime PM the recommended sequence is + * + * drm_atomic_helper_commit_modeset_disables(dev, state); + * + * drm_atomic_helper_commit_modeset_enables(dev, state); + * + * drm_atomic_helper_commit_planes(dev, state, true); + * + * See the kerneldoc entries for these three functions for more details. + */ + drm_atomic_helper_commit_modeset_disables(dev, state); + + drm_atomic_helper_commit_modeset_enables(dev, state); + + drm_atomic_helper_commit_planes(dev, state, true); + + rockchip_atomic_wait_for_complete(state); + + drm_atomic_helper_cleanup_planes(dev, state); + + drm_atomic_state_free(state); + + return 0; +} + static const struct drm_mode_config_funcs rockchip_drm_mode_config_funcs = { .fb_create = rockchip_user_fb_create, .output_poll_changed = rockchip_drm_output_poll_changed, + .atomic_check = drm_atomic_helper_check, + .atomic_commit = rockchip_drm_atomic_commit, };

struct drm_framebuffer * diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index bd5d349..58d7cc4 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -14,6 +14,7 @@

#include <drm/drm.h> #include <drm/drmP.h> +#include <drm/drm_atomic.h> #include <drm/drm_crtc.h> #include <drm/drm_crtc_helper.h> #include <drm/drm_plane_helper.h> @@ -63,12 +64,15 @@

#define to_vop(x) container_of(x, struct vop, crtc) #define to_vop_win(x) container_of(x, struct vop_win, base) +#define to_vop_plane_state(x) container_of(x, struct vop_plane_state, base)

-struct vop_win_state { - struct list_head head; - struct drm_framebuffer *fb; +struct vop_plane_state { + struct drm_plane_state base; + int format; + struct drm_rect src; + struct drm_rect dest; dma_addr_t yrgb_mst; - struct drm_pending_vblank_event *event; + bool enable; };

struct vop_win { @@ -76,8 +80,7 @@ struct vop_win { const struct vop_win_data *data; struct vop *vop;

- struct list_head pending; - struct vop_win_state *active; + struct vop_plane_state state; };

struct vop { @@ -93,6 +96,8 @@ struct vop { struct mutex vsync_mutex; bool vsync_work_pending; struct completion dsp_hold_completion; + struct completion wait_update_complete; + struct drm_pending_vblank_event *event;

const struct vop_data *data;

@@ -632,7 +637,7 @@ static void vop_dsp_hold_valid_irq_disable(struct vop *vop) spin_unlock_irqrestore(&vop->irq_lock, flags); }

-static void vop_crtc_enable(struct drm_crtc *crtc) +static void vop_enable(struct drm_crtc *crtc) { struct vop *vop = to_vop(crtc); int ret; @@ -746,224 +751,188 @@ static void vop_crtc_disable(struct drm_crtc *crtc) pm_runtime_put(vop->dev); }

-/* - * Caller must hold vsync_mutex. - */ -static struct drm_framebuffer *vop_win_last_pending_fb(struct vop_win *vop_win) -{ - struct vop_win_state *last; - struct vop_win_state *active = vop_win->active; - - if (list_empty(&vop_win->pending)) - return active ? active->fb : NULL; - - last = list_last_entry(&vop_win->pending, struct vop_win_state, head); - return last ? last->fb : NULL; -} - -/* - * Caller must hold vsync_mutex. - */ -static int vop_win_queue_fb(struct vop_win *vop_win, - struct drm_framebuffer *fb, dma_addr_t yrgb_mst, - struct drm_pending_vblank_event *event) +static void vop_plane_destroy(struct drm_plane *plane) { - struct vop_win_state *state; - - state = kzalloc(sizeof(*state), GFP_KERNEL); - if (!state) - return -ENOMEM; - - state->fb = fb; - state->yrgb_mst = yrgb_mst; - state->event = event; - - list_add_tail(&state->head, &vop_win->pending); - - return 0; + drm_plane_cleanup(plane); }

-static int vop_update_plane_event(struct drm_plane *plane, - struct drm_crtc *crtc, - struct drm_framebuffer *fb, int crtc_x, - int crtc_y, unsigned int crtc_w, - unsigned int crtc_h, uint32_t src_x, - uint32_t src_y, uint32_t src_w, - uint32_t src_h, - struct drm_pending_vblank_event *event) +static int vop_plane_atomic_check(struct drm_plane *plane, + struct drm_plane_state *state) { + struct drm_crtc *crtc = state->crtc; + struct drm_framebuffer *fb = state->fb; struct vop_win *vop_win = to_vop_win(plane); + struct vop_plane_state *vop_plane_state = to_vop_plane_state(state); const struct vop_win_data *win = vop_win->data; - struct vop *vop = to_vop(crtc); - struct drm_gem_object *obj; - struct rockchip_gem_object *rk_obj; - struct drm_gem_object *uv_obj; - struct rockchip_gem_object *rk_uv_obj; - unsigned long offset; - unsigned int actual_w; - unsigned int actual_h; - unsigned int dsp_stx; - unsigned int dsp_sty; - unsigned int y_vir_stride; - unsigned int uv_vir_stride = 0; - dma_addr_t yrgb_mst; - dma_addr_t uv_mst = 0; - enum vop_data_format format; - uint32_t val; - bool is_alpha; - bool rb_swap; - bool is_yuv; bool visible; int ret; - struct drm_rect dest = { - .x1 = crtc_x, - .y1 = crtc_y, - .x2 = crtc_x + crtc_w, - .y2 = crtc_y + crtc_h, - }; - struct drm_rect src = { - /* 16.16 fixed point */ - .x1 = src_x, - .y1 = src_y, - .x2 = src_x + src_w, - .y2 = src_y + src_h, - }; - const struct drm_rect clip = { - .x2 = crtc->mode.hdisplay, - .y2 = crtc->mode.vdisplay, - }; - bool can_position = plane->type != DRM_PLANE_TYPE_PRIMARY; + struct drm_rect *dest = &vop_plane_state->dest; + struct drm_rect *src = &vop_plane_state->src; + struct drm_rect clip; int min_scale = win->phy->scl ? FRAC_16_16(1, 8) : DRM_PLANE_HELPER_NO_SCALING; int max_scale = win->phy->scl ? FRAC_16_16(8, 1) : DRM_PLANE_HELPER_NO_SCALING;

- ret = drm_plane_helper_check_update(plane, crtc, fb, - &src, &dest, &clip, + crtc = crtc ? crtc : plane->state->crtc; + /* + * Both crtc or plane->state->crtc can be null. + */ + if (!crtc || !fb) + goto out_disable; + src->x1 = state->src_x; + src->y1 = state->src_y; + src->x2 = state->src_x + state->src_w; + src->y2 = state->src_y + state->src_h; + dest->x1 = state->crtc_x; + dest->y1 = state->crtc_y; + dest->x2 = state->crtc_x + state->crtc_w; + dest->y2 = state->crtc_y + state->crtc_h; + + clip.x1 = 0; + clip.y1 = 0; + clip.x2 = crtc->mode.hdisplay; + clip.y2 = crtc->mode.vdisplay; + + ret = drm_plane_helper_check_update(plane, crtc, state->fb, + src, dest, &clip, min_scale, max_scale, - can_position, false, &visible); + true, true, &visible); if (ret) return ret;

if (!visible) - return 0; + goto out_disable;

- is_alpha = is_alpha_support(fb->pixel_format); - rb_swap = has_rb_swapped(fb->pixel_format); - is_yuv = is_yuv_support(fb->pixel_format); - - format = vop_convert_format(fb->pixel_format); - if (format < 0) - return format; + vop_plane_state->format = vop_convert_format(fb->pixel_format); + if (vop_plane_state->format < 0) + return vop_plane_state->format;

- obj = rockchip_fb_get_gem_obj(fb, 0); - if (!obj) { - DRM_ERROR("fail to get rockchip gem object from framebuffer\n"); + /* + * Src.x1 can be odd when do clip, but yuv plane start point + * need align with 2 pixel. + */ + if (is_yuv_support(fb->pixel_format) && ((src->x1 >> 16) % 2)) return -EINVAL; - }

- rk_obj = to_rockchip_obj(obj); + vop_plane_state->enable = true;

- if (is_yuv) { - /* - * Src.x1 can be odd when do clip, but yuv plane start point - * need align with 2 pixel. - */ - val = (src.x1 >> 16) % 2; - src.x1 += val << 16; - src.x2 += val << 16; - } + return 0;

- actual_w = (src.x2 - src.x1) >> 16; - actual_h = (src.y2 - src.y1) >> 16; +out_disable: + vop_plane_state->enable = false; + return 0; +}

- dsp_stx = dest.x1 + crtc->mode.htotal - crtc->mode.hsync_start; - dsp_sty = dest.y1 + crtc->mode.vtotal - crtc->mode.vsync_start; +static void vop_plane_atomic_disable(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct vop_plane_state *vop_plane_state = to_vop_plane_state(old_state); + struct vop_win *vop_win = to_vop_win(plane); + const struct vop_win_data *win = vop_win->data; + struct vop *vop = to_vop(old_state->crtc);

- offset = (src.x1 >> 16) * drm_format_plane_cpp(fb->pixel_format, 0); - offset += (src.y1 >> 16) * fb->pitches[0]; + if (!old_state->crtc) + return;

- yrgb_mst = rk_obj->dma_addr + offset + fb->offsets[0]; - y_vir_stride = fb->pitches[0] >> 2; + spin_lock(&vop->reg_lock);

- if (is_yuv) { - int hsub = drm_format_horz_chroma_subsampling(fb->pixel_format); - int vsub = drm_format_vert_chroma_subsampling(fb->pixel_format); - int bpp = drm_format_plane_cpp(fb->pixel_format, 1); + VOP_WIN_SET(vop, win, enable, 0);

- uv_obj = rockchip_fb_get_gem_obj(fb, 1); - if (!uv_obj) { - DRM_ERROR("fail to get uv object from framebuffer\n"); - return -EINVAL; - } - rk_uv_obj = to_rockchip_obj(uv_obj); - uv_vir_stride = fb->pitches[1] >> 2; + spin_unlock(&vop->reg_lock);

- offset = (src.x1 >> 16) * bpp / hsub; - offset += (src.y1 >> 16) * fb->pitches[1] / vsub; + vop_plane_state->enable = false; +}

- uv_mst = rk_uv_obj->dma_addr + offset + fb->offsets[1]; - } +static void vop_plane_atomic_update(struct drm_plane *plane, + struct drm_plane_state *old_state) +{ + struct drm_plane_state *state = plane->state; + struct drm_crtc *crtc = state->crtc; + struct vop_win *vop_win = to_vop_win(plane); + struct vop_plane_state *vop_plane_state = to_vop_plane_state(state); + const struct vop_win_data *win = vop_win->data; + struct vop *vop = to_vop(state->crtc); + struct drm_framebuffer *fb = state->fb; + unsigned int actual_w, actual_h; + unsigned int dsp_stx, dsp_sty; + uint32_t act_info, dsp_info, dsp_st; + struct drm_rect *src = &vop_plane_state->src; + struct drm_rect *dest = &vop_plane_state->dest; + struct drm_gem_object *obj, *uv_obj; + struct rockchip_gem_object *rk_obj, *rk_uv_obj; + unsigned long offset; + dma_addr_t dma_addr; + uint32_t val; + bool rb_swap;

/* - * If this plane update changes the plane's framebuffer, (or more - * precisely, if this update has a different framebuffer than the last - * update), enqueue it so we can track when it completes. - * - * Only when we discover that this update has completed, can we - * unreference any previous framebuffers. + * can't update plane when vop is disabled. */ - mutex_lock(&vop->vsync_mutex); - if (fb != vop_win_last_pending_fb(vop_win)) { - ret = drm_crtc_vblank_get(crtc); - if (ret) { - DRM_ERROR("failed to get vblank, %d\n", ret); - mutex_unlock(&vop->vsync_mutex); - return ret; - } - - drm_framebuffer_reference(fb); + if (!crtc) + return;

- ret = vop_win_queue_fb(vop_win, fb, yrgb_mst, event); - if (ret) { - drm_crtc_vblank_put(crtc); - mutex_unlock(&vop->vsync_mutex); - return ret; - } + if (WARN_ON(!vop->is_enabled)) + return;

- vop->vsync_work_pending = true; + if (!vop_plane_state->enable) { + vop_plane_atomic_disable(plane, old_state); + return; } - mutex_unlock(&vop->vsync_mutex); + + obj = rockchip_fb_get_gem_obj(fb, 0); + rk_obj = to_rockchip_obj(obj); + + actual_w = drm_rect_width(src) >> 16; + actual_h = drm_rect_height(src) >> 16; + act_info = (actual_h - 1) << 16 | ((actual_w - 1) & 0xffff); + + dsp_info = (drm_rect_height(dest) - 1) << 16; + dsp_info |= (drm_rect_width(dest) - 1) & 0xffff; + + dsp_stx = dest->x1 + crtc->mode.htotal - crtc->mode.hsync_start; + dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start; + dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff); + + offset = (src->x1 >> 16) * drm_format_plane_cpp(fb->pixel_format, 0); + offset += (src->y1 >> 16) * fb->pitches[0]; + vop_plane_state->yrgb_mst = rk_obj->dma_addr + offset + fb->offsets[0];

spin_lock(&vop->reg_lock);

- VOP_WIN_SET(vop, win, format, format); - VOP_WIN_SET(vop, win, yrgb_vir, y_vir_stride); - VOP_WIN_SET(vop, win, yrgb_mst, yrgb_mst); - if (is_yuv) { - VOP_WIN_SET(vop, win, uv_vir, uv_vir_stride); - VOP_WIN_SET(vop, win, uv_mst, uv_mst); + VOP_WIN_SET(vop, win, format, vop_plane_state->format); + VOP_WIN_SET(vop, win, yrgb_vir, fb->pitches[0] >> 2); + VOP_WIN_SET(vop, win, yrgb_mst, vop_plane_state->yrgb_mst); + if (is_yuv_support(fb->pixel_format)) { + int hsub = drm_format_horz_chroma_subsampling(fb->pixel_format); + int vsub = drm_format_vert_chroma_subsampling(fb->pixel_format); + int bpp = drm_format_plane_cpp(fb->pixel_format, 1); + + uv_obj = rockchip_fb_get_gem_obj(fb, 1); + rk_uv_obj = to_rockchip_obj(uv_obj); + + offset = (src->x1 >> 16) * bpp / hsub; + offset += (src->y1 >> 16) * fb->pitches[1] / vsub; + + dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1]; + VOP_WIN_SET(vop, win, uv_vir, fb->pitches[1] >> 2); + VOP_WIN_SET(vop, win, uv_mst, dma_addr); }

if (win->phy->scl) scl_vop_cal_scl_fac(vop, win, actual_w, actual_h, - dest.x2 - dest.x1, dest.y2 - dest.y1, + drm_rect_width(dest), drm_rect_height(dest), fb->pixel_format);

- val = (actual_h - 1) << 16; - val |= (actual_w - 1) & 0xffff; - VOP_WIN_SET(vop, win, act_info, val); + VOP_WIN_SET(vop, win, act_info, act_info); + VOP_WIN_SET(vop, win, dsp_info, dsp_info); + VOP_WIN_SET(vop, win, dsp_st, dsp_st);

- val = (dest.y2 - dest.y1 - 1) << 16; - val |= (dest.x2 - dest.x1 - 1) & 0xffff; - VOP_WIN_SET(vop, win, dsp_info, val); - val = dsp_sty << 16; - val |= dsp_stx & 0xffff; - VOP_WIN_SET(vop, win, dsp_st, val); + rb_swap = has_rb_swapped(fb->pixel_format); VOP_WIN_SET(vop, win, rb_swap, rb_swap);

- if (is_alpha) { + if (is_alpha_support(fb->pixel_format)) { VOP_WIN_SET(vop, win, dst_alpha_ctl, DST_FACTOR_M0(ALPHA_SRC_INVERSE)); val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) | @@ -977,86 +946,78 @@ static int vop_update_plane_event(struct drm_plane *plane, }

VOP_WIN_SET(vop, win, enable, 1); - - vop_cfg_done(vop); spin_unlock(&vop->reg_lock); - - return 0; }

-static int vop_update_plane(struct drm_plane *plane, struct drm_crtc *crtc, - struct drm_framebuffer *fb, int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, uint32_t src_w, - uint32_t src_h) -{ - return vop_update_plane_event(plane, crtc, fb, crtc_x, crtc_y, crtc_w, - crtc_h, src_x, src_y, src_w, src_h, - NULL); -} +static const struct drm_plane_helper_funcs plane_helper_funcs = { + .atomic_check = vop_plane_atomic_check, + .atomic_update = vop_plane_atomic_update, + .atomic_disable = vop_plane_atomic_disable, +};

-static int vop_update_primary_plane(struct drm_crtc *crtc, - struct drm_pending_vblank_event *event) +void rockchip_crtc_wait_for_update(struct drm_crtc *crtc) { - unsigned int crtc_w, crtc_h; - - crtc_w = crtc->primary->fb->width - crtc->x; - crtc_h = crtc->primary->fb->height - crtc->y; + struct vop *vop = to_vop(crtc);

- return vop_update_plane_event(crtc->primary, crtc, crtc->primary->fb, - 0, 0, crtc_w, crtc_h, crtc->x << 16, - crtc->y << 16, crtc_w << 16, - crtc_h << 16, event); + reinit_completion(&vop->wait_update_complete); + WARN_ON(!wait_for_completion_timeout(&vop->wait_update_complete, 100)); }

-static int vop_disable_plane(struct drm_plane *plane) +void vop_atomic_plane_reset(struct drm_plane *plane) { - struct vop_win *vop_win = to_vop_win(plane); - const struct vop_win_data *win = vop_win->data; - struct vop *vop; - int ret; + struct vop_plane_state *vop_plane_state = + to_vop_plane_state(plane->state);

- if (!plane->crtc) - return 0; + if (plane->state && plane->state->fb) + drm_framebuffer_unreference(plane->state->fb);

- vop = to_vop(plane->crtc); + kfree(vop_plane_state); + vop_plane_state = kzalloc(sizeof(*vop_plane_state), GFP_KERNEL); + if (!vop_plane_state) + return;

- ret = drm_crtc_vblank_get(plane->crtc); - if (ret) { - DRM_ERROR("failed to get vblank, %d\n", ret); - return ret; - } + plane->state = &vop_plane_state->base; + plane->state->plane = plane; +}

- mutex_lock(&vop->vsync_mutex); +struct drm_plane_state * +vop_atomic_plane_duplicate_state(struct drm_plane *plane) +{ + struct vop_plane_state *old_vop_plane_state; + struct vop_plane_state *vop_plane_state;

- ret = vop_win_queue_fb(vop_win, NULL, 0, NULL); - if (ret) { - drm_crtc_vblank_put(plane->crtc); - mutex_unlock(&vop->vsync_mutex); - return ret; - } + if (WARN_ON(!plane->state)) + return NULL;

- vop->vsync_work_pending = true; - mutex_unlock(&vop->vsync_mutex); + old_vop_plane_state = to_vop_plane_state(plane->state); + vop_plane_state = kmemdup(old_vop_plane_state, + sizeof(*vop_plane_state), GFP_KERNEL); + if (!vop_plane_state) + return NULL;

- spin_lock(&vop->reg_lock); - VOP_WIN_SET(vop, win, enable, 0); - vop_cfg_done(vop); - spin_unlock(&vop->reg_lock); + __drm_atomic_helper_plane_duplicate_state(plane, + &vop_plane_state->base);

- return 0; + return &vop_plane_state->base; }

-static void vop_plane_destroy(struct drm_plane *plane) +static void vop_atomic_plane_destroy_state(struct drm_plane *plane, + struct drm_plane_state *state) { - vop_disable_plane(plane); - drm_plane_cleanup(plane); + struct vop_plane_state *vop_state = to_vop_plane_state(state); + + __drm_atomic_helper_plane_destroy_state(plane, state); + + kfree(vop_state); }

static const struct drm_plane_funcs vop_plane_funcs = { - .update_plane = vop_update_plane, - .disable_plane = vop_disable_plane, + .update_plane = drm_atomic_helper_update_plane, + .disable_plane = drm_atomic_helper_disable_plane, .destroy = vop_plane_destroy, + .reset = vop_atomic_plane_reset, + .atomic_duplicate_state = vop_atomic_plane_duplicate_state, + .atomic_destroy_state = vop_atomic_plane_destroy_state, };

int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc, @@ -1077,7 +1038,7 @@ static int vop_crtc_enable_vblank(struct drm_crtc *crtc) struct vop *vop = to_vop(crtc); unsigned long flags;

- if (!vop->is_enabled) + if (WARN_ON(!vop->is_enabled)) return -EPERM;

spin_lock_irqsave(&vop->irq_lock, flags); @@ -1094,7 +1055,7 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc) struct vop *vop = to_vop(crtc); unsigned long flags;

- if (!vop->is_enabled) + if (WARN_ON(!vop->is_enabled)) return;

spin_lock_irqsave(&vop->irq_lock, flags); @@ -1117,29 +1078,10 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, return true; }

-static int vop_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, - struct drm_framebuffer *old_fb) -{ - int ret; - - crtc->x = x; - crtc->y = y; - - ret = vop_update_primary_plane(crtc, NULL); - if (ret < 0) { - DRM_ERROR("fail to update plane\n"); - return ret; - } - - return 0; -} - -static int vop_crtc_mode_set(struct drm_crtc *crtc, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode, - int x, int y, struct drm_framebuffer *fb) +static void vop_crtc_enable(struct drm_crtc *crtc) { struct vop *vop = to_vop(crtc); + struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode; u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start; u16 hdisplay = adjusted_mode->hdisplay; u16 htotal = adjusted_mode->htotal; @@ -1150,9 +1092,9 @@ static int vop_crtc_mode_set(struct drm_crtc *crtc, u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start; u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start; u16 vact_end = vact_st + vdisplay; - int ret, ret_clk; uint32_t val;

+ vop_enable(crtc); /* * disable dclk to stop frame scan, so that we can safe config mode and * enable iommu. @@ -1172,7 +1114,6 @@ static int vop_crtc_mode_set(struct drm_crtc *crtc, default: DRM_ERROR("unsupport connector_type[%d]\n", vop->connector_type); - ret = -EINVAL; goto out; }; VOP_CTRL_SET(vop, out_mode, vop->connector_out_mode); @@ -1194,9 +1135,6 @@ static int vop_crtc_mode_set(struct drm_crtc *crtc, VOP_CTRL_SET(vop, vact_st_end, val); VOP_CTRL_SET(vop, vpost_st_end, val);

- ret = vop_crtc_mode_set_base(crtc, x, y, fb); - if (ret) - goto out;

/* * reset dclk, take all mode config affect, so the clk would run in @@ -1208,172 +1146,98 @@ static int vop_crtc_mode_set(struct drm_crtc *crtc,

clk_set_rate(vop->dclk, adjusted_mode->clock * 1000); out: - ret_clk = clk_enable(vop->dclk); - if (ret_clk < 0) { + if (clk_enable(vop->dclk) < 0) dev_err(vop->dev, "failed to enable dclk - %d\n", ret_clk); - return ret_clk; - }

- return ret; }

-static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = { - .enable = vop_crtc_enable, - .disable = vop_crtc_disable, - .mode_fixup = vop_crtc_mode_fixup, - .mode_set = vop_crtc_mode_set, - .mode_set_base = vop_crtc_mode_set_base, -}; - -static int vop_crtc_page_flip(struct drm_crtc *crtc, - struct drm_framebuffer *fb, - struct drm_pending_vblank_event *event, - uint32_t page_flip_flags) +static void vop_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) { struct vop *vop = to_vop(crtc); - struct drm_framebuffer *old_fb = crtc->primary->fb; - int ret;

- /* when the page flip is requested, crtc should be on */ - if (!vop->is_enabled) { - DRM_DEBUG("page flip request rejected because crtc is off.\n"); - return 0; - } + if (WARN_ON(!vop->is_enabled)) + return;

- crtc->primary->fb = fb; + spin_lock(&vop->reg_lock);

- ret = vop_update_primary_plane(crtc, event); - if (ret) - crtc->primary->fb = old_fb; + vop_cfg_done(vop);

- return ret; + spin_unlock(&vop->reg_lock); }

-static void vop_win_state_complete(struct vop_win *vop_win, - struct vop_win_state *state) +static void vop_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_crtc_state *old_crtc_state) { - struct vop *vop = vop_win->vop; - struct drm_crtc *crtc = &vop->crtc; - struct drm_device *drm = crtc->dev; - unsigned long flags; + struct vop *vop = to_vop(crtc);

- if (state->event) { - spin_lock_irqsave(&drm->event_lock, flags); - drm_crtc_send_vblank_event(crtc, state->event); - spin_unlock_irqrestore(&drm->event_lock, flags); - } + if (crtc->state->event) { + WARN_ON(drm_crtc_vblank_get(crtc) != 0);

- list_del(&state->head); - drm_crtc_vblank_put(crtc); + vop->event = crtc->state->event; + crtc->state->event = NULL; + } }

+static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = { + .enable = vop_crtc_enable, + .disable = vop_crtc_disable, + .mode_fixup = vop_crtc_mode_fixup, + .atomic_flush = vop_crtc_atomic_flush, + .atomic_begin = vop_crtc_atomic_begin, +}; + static void vop_crtc_destroy(struct drm_crtc *crtc) { drm_crtc_cleanup(crtc); }

static const struct drm_crtc_funcs vop_crtc_funcs = { - .set_config = drm_crtc_helper_set_config, - .page_flip = vop_crtc_page_flip, + .set_config = drm_atomic_helper_set_config, + .page_flip = drm_atomic_helper_page_flip, .destroy = vop_crtc_destroy, + .reset = drm_atomic_helper_crtc_reset, + .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, };

-static bool vop_win_state_is_active(struct vop_win *vop_win, - struct vop_win_state *state) +static bool vop_win_pending_is_complete(struct vop_win *vop_win) { - bool active = false; - - if (state->fb) { - dma_addr_t yrgb_mst; - - /* check yrgb_mst to tell if pending_fb is now front */ - yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data); - - active = (yrgb_mst == state->yrgb_mst); - } else { - bool enabled; + struct drm_plane *plane = &vop_win->base; + struct vop_plane_state *state = to_vop_plane_state(plane->state); + dma_addr_t yrgb_mst;

- /* if enable bit is clear, plane is now disabled */ - enabled = VOP_WIN_GET(vop_win->vop, vop_win->data, enable); + if (!state->enable) + return VOP_WIN_GET(vop_win->vop, vop_win->data, enable) == 0;

- active = (enabled == 0); - } + yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data);

- return active; + return yrgb_mst == state->yrgb_mst; }

-static void vop_win_state_destroy(struct vop_win_state *state) +static void vop_handle_vblank(struct vop *vop) { - struct drm_framebuffer *fb = state->fb; - - if (fb) - drm_framebuffer_unreference(fb); - - kfree(state); -} - -static void vop_win_update_state(struct vop_win *vop_win) -{ - struct vop_win_state *state, *n, *new_active = NULL; - - /* Check if any pending states are now active */ - list_for_each_entry(state, &vop_win->pending, head) - if (vop_win_state_is_active(vop_win, state)) { - new_active = state; - break; - } - - if (!new_active) - return; + struct drm_device *drm = vop->drm_dev; + struct drm_crtc *crtc = &vop->crtc; + unsigned long flags; + int i;

- /* - * Destroy any 'skipped' pending states - states that were queued - * before the newly active state. - */ - list_for_each_entry_safe(state, n, &vop_win->pending, head) { - if (state == new_active) - break; - vop_win_state_complete(vop_win, state); - vop_win_state_destroy(state); + for (i = 0; i < vop->data->win_size; i++) { + if (!vop_win_pending_is_complete(&vop->win[i])) + return; }

- vop_win_state_complete(vop_win, new_active); - - if (vop_win->active) - vop_win_state_destroy(vop_win->active); - vop_win->active = new_active; -} - -static bool vop_win_has_pending_state(struct vop_win *vop_win) -{ - return !list_empty(&vop_win->pending); -} - -static irqreturn_t vop_isr_thread(int irq, void *data) -{ - struct vop *vop = data; - const struct vop_data *vop_data = vop->data; - unsigned int i; - - mutex_lock(&vop->vsync_mutex); - - if (!vop->vsync_work_pending) - goto done; + if (vop->event) { + spin_lock_irqsave(&drm->event_lock, flags);

- vop->vsync_work_pending = false; + drm_crtc_send_vblank_event(crtc, vop->event); + drm_crtc_vblank_put(crtc); + vop->event = NULL;

- for (i = 0; i < vop_data->win_size; i++) { - struct vop_win *vop_win = &vop->win[i]; - - vop_win_update_state(vop_win); - if (vop_win_has_pending_state(vop_win)) - vop->vsync_work_pending = true; + spin_unlock_irqrestore(&drm->event_lock, flags); } - -done: - mutex_unlock(&vop->vsync_mutex); - - return IRQ_HANDLED; + if (!completion_done(&vop->wait_update_complete)) + complete(&vop->wait_update_complete); }

static irqreturn_t vop_isr(int irq, void *data) @@ -1409,8 +1273,9 @@ static irqreturn_t vop_isr(int irq, void *data)

if (active_irqs & FS_INTR) { drm_crtc_handle_vblank(crtc); + vop_handle_vblank(vop); active_irqs &= ~FS_INTR; - ret = (vop->vsync_work_pending) ? IRQ_WAKE_THREAD : IRQ_HANDLED; + ret = IRQ_HANDLED; }

/* Unhandled irqs are spurious. */ @@ -1455,6 +1320,7 @@ static int vop_create_crtc(struct vop *vop) }

plane = &vop_win->base; + drm_plane_helper_add(plane, &plane_helper_funcs); if (plane->type == DRM_PLANE_TYPE_PRIMARY) primary = plane; else if (plane->type == DRM_PLANE_TYPE_CURSOR) @@ -1490,6 +1356,7 @@ static int vop_create_crtc(struct vop *vop) DRM_ERROR("failed to initialize overlay plane\n"); goto err_cleanup_crtc; } + drm_plane_helper_add(&vop_win->base, &plane_helper_funcs); }

port = of_get_child_by_name(dev->of_node, "port"); @@ -1500,6 +1367,7 @@ static int vop_create_crtc(struct vop *vop) }

init_completion(&vop->dsp_hold_completion); + init_completion(&vop->wait_update_complete); crtc->port = port; rockchip_register_crtc_funcs(crtc, &private_crtc_funcs);

@@ -1633,7 +1501,6 @@ static void vop_win_init(struct vop *vop)

vop_win->data = win_data; vop_win->vop = vop; - INIT_LIST_HEAD(&vop_win->pending); } }

@@ -1694,8 +1561,8 @@ static int vop_bind(struct device *dev, struct device *master, void *data)

mutex_init(&vop->vsync_mutex);

- ret = devm_request_threaded_irq(dev, vop->irq, vop_isr, vop_isr_thread, - IRQF_SHARED, dev_name(dev), vop); + ret = devm_request_irq(dev, vop->irq, vop_isr, + IRQF_SHARED, dev_name(dev), vop); if (ret) return ret;