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drm/rockchip: Convert to support atomic API

Browse source 
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>
This commit is contained in:
Mark Yao 2015-11-30 18:22:42 +08:00
parent 0ad3675d9c
commit 63ebb9fa7f
4 changed files with 377 additions and 411 deletions
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5
drivers/gpu/drm/rockchip/rockchip_drm_drv.c
View file

@ -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,

3
drivers/gpu/drm/rockchip/rockchip_drm_drv.h
View file

@ -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>
@ -38,6 +39,7 @@ struct drm_connector;
struct rockchip_crtc_funcs {
int (*enable_vblank)(struct drm_crtc *crtc);
void (*disable_vblank)(struct drm_crtc *crtc);
void (*wait_for_update)(struct drm_crtc *crtc);
};
/*
@ -63,5 +65,4 @@ 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);
#endif /* _ROCKCHIP_DRM_DRV_H_ */

95
drivers/gpu/drm/rockchip/rockchip_drm_fb.c
View file

@ -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 +167,103 @@ static void rockchip_drm_output_poll_changed(struct drm_device *dev)
drm_fb_helper_hotplug_event(fb_helper);
}
static void rockchip_crtc_wait_for_update(struct drm_crtc *crtc)
{
struct rockchip_drm_private *priv = crtc->dev->dev_private;
int pipe = drm_crtc_index(crtc);
const struct rockchip_crtc_funcs *crtc_funcs = priv->crtc_funcs[pipe];
if (crtc_funcs && crtc_funcs->wait_for_update)
crtc_funcs->wait_for_update(crtc);
}
static void
rockchip_atomic_wait_for_complete(struct drm_atomic_state *old_state)
{
struct drm_crtc_state *old_crtc_state;
struct drm_crtc *crtc;
int i, ret;
for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
/* No one cares about the old state, so abuse it for tracking
* and store whether we hold a vblank reference (and should do a
* vblank wait) in the ->enable boolean.
*/
old_crtc_state->enable = false;
if (!crtc->state->active)
continue;
ret = drm_crtc_vblank_get(crtc);
if (ret != 0)
continue;
old_crtc_state->enable = true;
}
for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
if (!old_crtc_state->enable)
continue;
rockchip_crtc_wait_for_update(crtc);
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 *

685
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
View file

@ -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)
static void vop_plane_destroy(struct drm_plane *plane)
{
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;
drm_plane_cleanup(plane);
}
/*
* 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)
{
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;
}
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);
vop_plane_state->format = vop_convert_format(fb->pixel_format);
if (vop_plane_state->format < 0)
return vop_plane_state->format;
format = vop_convert_format(fb->pixel_format);
if (format < 0)
return format;
/*
* 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;
vop_plane_state->enable = true;
return 0;
out_disable:
vop_plane_state->enable = false;
return 0;
}
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);
if (!old_state->crtc)
return;
spin_lock(&vop->reg_lock);
VOP_WIN_SET(vop, win, enable, 0);
spin_unlock(&vop->reg_lock);
vop_plane_state->enable = false;
}
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;
/*
* can't update plane when vop is disabled.
*/
if (!crtc)
return;
if (WARN_ON(!vop->is_enabled))
return;
if (!vop_plane_state->enable) {
vop_plane_atomic_disable(plane, old_state);
return;
}
obj = rockchip_fb_get_gem_obj(fb, 0);
if (!obj) {
DRM_ERROR("fail to get rockchip gem object from framebuffer\n");
return -EINVAL;
}
rk_obj = to_rockchip_obj(obj);
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;
}
actual_w = drm_rect_width(src) >> 16;
actual_h = drm_rect_height(src) >> 16;
act_info = (actual_h - 1) << 16 | ((actual_w - 1) & 0xffff);
actual_w = (src.x2 - src.x1) >> 16;
actual_h = (src.y2 - src.y1) >> 16;
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_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];
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];
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) {
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);
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;
offset = (src.x1 >> 16) * bpp / hsub;
offset += (src.y1 >> 16) * fb->pitches[1] / vsub;
offset = (src->x1 >> 16) * bpp / hsub;
offset += (src->y1 >> 16) * fb->pitches[1] / vsub;
uv_mst = rk_uv_obj->dma_addr + offset + fb->offsets[1];
}
/*
* 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.
*/
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);
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;
}
vop->vsync_work_pending = true;
}
mutex_unlock(&vop->vsync_mutex);
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);
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 +946,70 @@ 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)
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,
};
void vop_atomic_plane_reset(struct drm_plane *plane)
{
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);
struct vop_plane_state *vop_plane_state =
to_vop_plane_state(plane->state);
if (plane->state && plane->state->fb)
drm_framebuffer_unreference(plane->state->fb);
kfree(vop_plane_state);
vop_plane_state = kzalloc(sizeof(*vop_plane_state), GFP_KERNEL);
if (!vop_plane_state)
return;
plane->state = &vop_plane_state->base;
plane->state->plane = plane;
}
static int vop_update_primary_plane(struct drm_crtc *crtc,
struct drm_pending_vblank_event *event)
struct drm_plane_state *
vop_atomic_plane_duplicate_state(struct drm_plane *plane)
{
unsigned int crtc_w, crtc_h;
struct vop_plane_state *old_vop_plane_state;
struct vop_plane_state *vop_plane_state;
crtc_w = crtc->primary->fb->width - crtc->x;
crtc_h = crtc->primary->fb->height - crtc->y;
if (WARN_ON(!plane->state))
return NULL;
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);
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;
__drm_atomic_helper_plane_duplicate_state(plane,
&vop_plane_state->base);
return &vop_plane_state->base;
}
static int vop_disable_plane(struct drm_plane *plane)
static void vop_atomic_plane_destroy_state(struct drm_plane *plane,
struct drm_plane_state *state)
{
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_state = to_vop_plane_state(state);
if (!plane->crtc)
return 0;
__drm_atomic_helper_plane_destroy_state(plane, state);
vop = to_vop(plane->crtc);
ret = drm_crtc_vblank_get(plane->crtc);
if (ret) {
DRM_ERROR("failed to get vblank, %d\n", ret);
return ret;
}
mutex_lock(&vop->vsync_mutex);
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;
}
vop->vsync_work_pending = true;
mutex_unlock(&vop->vsync_mutex);
spin_lock(&vop->reg_lock);
VOP_WIN_SET(vop, win, enable, 0);
vop_cfg_done(vop);
spin_unlock(&vop->reg_lock);
return 0;
}
static void vop_plane_destroy(struct drm_plane *plane)
{
vop_disable_plane(plane);
drm_plane_cleanup(plane);
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 +1030,7 @@ 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 +1047,7 @@ 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);
@ -1102,9 +1055,18 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
spin_unlock_irqrestore(&vop->irq_lock, flags);
}
static void vop_crtc_wait_for_update(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
reinit_completion(&vop->wait_update_complete);
WARN_ON(!wait_for_completion_timeout(&vop->wait_update_complete, 100));
}
static const struct rockchip_crtc_funcs private_crtc_funcs = {
.enable_vblank = vop_crtc_enable_vblank,
.disable_vblank = vop_crtc_disable_vblank,
.wait_for_update = vop_crtc_wait_for_update,
};
static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
@ -1117,29 +1079,10 @@ 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 +1093,9 @@ 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 +1115,6 @@ 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 +1136,6 @@ 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 +1147,97 @@ 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) {
dev_err(vop->dev, "failed to enable dclk - %d\n", ret_clk);
return ret_clk;
}
if (clk_enable(vop->dclk) < 0)
dev_err(vop->dev, "failed to enable dclk\n");
}
return ret;
static void vop_crtc_atomic_flush(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct vop *vop = to_vop(crtc);
if (WARN_ON(!vop->is_enabled))
return;
spin_lock(&vop->reg_lock);
vop_cfg_done(vop);
spin_unlock(&vop->reg_lock);
}
static void vop_crtc_atomic_begin(struct drm_crtc *crtc,
struct drm_crtc_state *old_crtc_state)
{
struct vop *vop = to_vop(crtc);
if (crtc->state->event) {
WARN_ON(drm_crtc_vblank_get(crtc) != 0);
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,
.mode_set = vop_crtc_mode_set,
.mode_set_base = vop_crtc_mode_set_base,
.atomic_flush = vop_crtc_atomic_flush,
.atomic_begin = vop_crtc_atomic_begin,
};
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)
{
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;
}
crtc->primary->fb = fb;
ret = vop_update_primary_plane(crtc, event);
if (ret)
crtc->primary->fb = old_fb;
return ret;
}
static void vop_win_state_complete(struct vop_win *vop_win,
struct vop_win_state *state)
{
struct vop *vop = vop_win->vop;
struct drm_crtc *crtc = &vop->crtc;
struct drm_device *drm = crtc->dev;
unsigned long flags;
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);
}
list_del(&state->head);
drm_crtc_vblank_put(crtc);
}
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;
struct drm_plane *plane = &vop_win->base;
struct vop_plane_state *state = to_vop_plane_state(plane->state);
dma_addr_t yrgb_mst;
if (state->fb) {
dma_addr_t yrgb_mst;
if (!state->enable)
return VOP_WIN_GET(vop_win->vop, vop_win->data, enable) == 0;
/* check yrgb_mst to tell if pending_fb is now front */
yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data);
yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data);
active = (yrgb_mst == state->yrgb_mst);
} else {
bool enabled;
return yrgb_mst == state->yrgb_mst;
}
/* if enable bit is clear, plane is now disabled */
enabled = VOP_WIN_GET(vop_win->vop, vop_win->data, enable);
static void vop_handle_vblank(struct vop *vop)
{
struct drm_device *drm = vop->drm_dev;
struct drm_crtc *crtc = &vop->crtc;
unsigned long flags;
int i;
active = (enabled == 0);
for (i = 0; i < vop->data->win_size; i++) {
if (!vop_win_pending_is_complete(&vop->win[i]))
return;
}
return active;
}
if (vop->event) {
spin_lock_irqsave(&drm->event_lock, flags);
static void vop_win_state_destroy(struct vop_win_state *state)
{
struct drm_framebuffer *fb = state->fb;
drm_crtc_send_vblank_event(crtc, vop->event);
drm_crtc_vblank_put(crtc);
vop->event = NULL;
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;
/*
* 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);
spin_unlock_irqrestore(&drm->event_lock, flags);
}
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;
vop->vsync_work_pending = false;
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;
}
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;