mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
f3aaf76244
The Exynos DRM code does not modify the ops provided by CRTC driver in exynos_drm_crtc_create() call. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Inki Dae <inki.dae@samsung.com>
377 lines
9.4 KiB
C
377 lines
9.4 KiB
C
/* exynos_drm_crtc.c
|
|
*
|
|
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
|
|
* Authors:
|
|
* Inki Dae <inki.dae@samsung.com>
|
|
* Joonyoung Shim <jy0922.shim@samsung.com>
|
|
* Seung-Woo Kim <sw0312.kim@samsung.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <drm/drmP.h>
|
|
#include <drm/drm_crtc_helper.h>
|
|
|
|
#include "exynos_drm_crtc.h"
|
|
#include "exynos_drm_drv.h"
|
|
#include "exynos_drm_encoder.h"
|
|
#include "exynos_drm_plane.h"
|
|
|
|
static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
|
|
DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
|
|
|
|
if (exynos_crtc->dpms == mode) {
|
|
DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
|
|
return;
|
|
}
|
|
|
|
if (mode > DRM_MODE_DPMS_ON) {
|
|
/* wait for the completion of page flip. */
|
|
if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
|
|
(exynos_crtc->event == NULL), HZ/20))
|
|
exynos_crtc->event = NULL;
|
|
drm_crtc_vblank_off(crtc);
|
|
}
|
|
|
|
if (exynos_crtc->ops->dpms)
|
|
exynos_crtc->ops->dpms(exynos_crtc, mode);
|
|
|
|
exynos_crtc->dpms = mode;
|
|
|
|
if (mode == DRM_MODE_DPMS_ON)
|
|
drm_crtc_vblank_on(crtc);
|
|
}
|
|
|
|
static void exynos_drm_crtc_prepare(struct drm_crtc *crtc)
|
|
{
|
|
/* drm framework doesn't check NULL. */
|
|
}
|
|
|
|
static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
struct exynos_drm_plane *exynos_plane = to_exynos_plane(crtc->primary);
|
|
|
|
exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
|
|
|
|
if (exynos_crtc->ops->win_commit)
|
|
exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
|
|
|
|
if (exynos_crtc->ops->commit)
|
|
exynos_crtc->ops->commit(exynos_crtc);
|
|
}
|
|
|
|
static bool
|
|
exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
|
|
const struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
|
|
if (exynos_crtc->ops->mode_fixup)
|
|
return exynos_crtc->ops->mode_fixup(exynos_crtc, mode,
|
|
adjusted_mode);
|
|
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
exynos_drm_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 *old_fb)
|
|
{
|
|
struct drm_framebuffer *fb = crtc->primary->fb;
|
|
unsigned int crtc_w;
|
|
unsigned int crtc_h;
|
|
int ret;
|
|
|
|
/*
|
|
* copy the mode data adjusted by mode_fixup() into crtc->mode
|
|
* so that hardware can be seet to proper mode.
|
|
*/
|
|
memcpy(&crtc->mode, adjusted_mode, sizeof(*adjusted_mode));
|
|
|
|
ret = exynos_check_plane(crtc->primary, fb);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
crtc_w = fb->width - x;
|
|
crtc_h = fb->height - y;
|
|
exynos_plane_mode_set(crtc->primary, crtc, fb, 0, 0,
|
|
crtc_w, crtc_h, x, y, crtc_w, crtc_h);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
|
|
struct drm_framebuffer *old_fb)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
struct drm_framebuffer *fb = crtc->primary->fb;
|
|
unsigned int crtc_w;
|
|
unsigned int crtc_h;
|
|
|
|
/* when framebuffer changing is requested, crtc's dpms should be on */
|
|
if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
|
|
DRM_ERROR("failed framebuffer changing request.\n");
|
|
return -EPERM;
|
|
}
|
|
|
|
crtc_w = fb->width - x;
|
|
crtc_h = fb->height - y;
|
|
|
|
return exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
|
|
crtc_w, crtc_h, x, y, crtc_w, crtc_h);
|
|
}
|
|
|
|
static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
|
|
{
|
|
struct drm_plane *plane;
|
|
int ret;
|
|
|
|
exynos_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
|
|
|
|
drm_for_each_legacy_plane(plane, &crtc->dev->mode_config.plane_list) {
|
|
if (plane->crtc != crtc)
|
|
continue;
|
|
|
|
ret = plane->funcs->disable_plane(plane);
|
|
if (ret)
|
|
DRM_ERROR("Failed to disable plane %d\n", ret);
|
|
}
|
|
}
|
|
|
|
static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
|
|
.dpms = exynos_drm_crtc_dpms,
|
|
.prepare = exynos_drm_crtc_prepare,
|
|
.commit = exynos_drm_crtc_commit,
|
|
.mode_fixup = exynos_drm_crtc_mode_fixup,
|
|
.mode_set = exynos_drm_crtc_mode_set,
|
|
.mode_set_base = exynos_drm_crtc_mode_set_base,
|
|
.disable = exynos_drm_crtc_disable,
|
|
};
|
|
|
|
static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb,
|
|
struct drm_pending_vblank_event *event,
|
|
uint32_t page_flip_flags)
|
|
{
|
|
struct drm_device *dev = crtc->dev;
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
struct drm_framebuffer *old_fb = crtc->primary->fb;
|
|
unsigned int crtc_w, crtc_h;
|
|
int ret;
|
|
|
|
/* when the page flip is requested, crtc's dpms should be on */
|
|
if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
|
|
DRM_ERROR("failed page flip request.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!event)
|
|
return -EINVAL;
|
|
|
|
spin_lock_irq(&dev->event_lock);
|
|
if (exynos_crtc->event) {
|
|
ret = -EBUSY;
|
|
goto out;
|
|
}
|
|
|
|
ret = drm_vblank_get(dev, exynos_crtc->pipe);
|
|
if (ret) {
|
|
DRM_DEBUG("failed to acquire vblank counter\n");
|
|
goto out;
|
|
}
|
|
|
|
exynos_crtc->event = event;
|
|
spin_unlock_irq(&dev->event_lock);
|
|
|
|
/*
|
|
* the pipe from user always is 0 so we can set pipe number
|
|
* of current owner to event.
|
|
*/
|
|
event->pipe = exynos_crtc->pipe;
|
|
|
|
crtc->primary->fb = fb;
|
|
crtc_w = fb->width - crtc->x;
|
|
crtc_h = fb->height - crtc->y;
|
|
ret = exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
|
|
crtc_w, crtc_h, crtc->x, crtc->y,
|
|
crtc_w, crtc_h);
|
|
if (ret) {
|
|
crtc->primary->fb = old_fb;
|
|
spin_lock_irq(&dev->event_lock);
|
|
exynos_crtc->event = NULL;
|
|
drm_vblank_put(dev, exynos_crtc->pipe);
|
|
spin_unlock_irq(&dev->event_lock);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
|
|
out:
|
|
spin_unlock_irq(&dev->event_lock);
|
|
return ret;
|
|
}
|
|
|
|
static void exynos_drm_crtc_destroy(struct drm_crtc *crtc)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
struct exynos_drm_private *private = crtc->dev->dev_private;
|
|
|
|
private->crtc[exynos_crtc->pipe] = NULL;
|
|
|
|
drm_crtc_cleanup(crtc);
|
|
kfree(exynos_crtc);
|
|
}
|
|
|
|
static struct drm_crtc_funcs exynos_crtc_funcs = {
|
|
.set_config = drm_crtc_helper_set_config,
|
|
.page_flip = exynos_drm_crtc_page_flip,
|
|
.destroy = exynos_drm_crtc_destroy,
|
|
};
|
|
|
|
struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
|
|
struct drm_plane *plane,
|
|
int pipe,
|
|
enum exynos_drm_output_type type,
|
|
const struct exynos_drm_crtc_ops *ops,
|
|
void *ctx)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc;
|
|
struct exynos_drm_private *private = drm_dev->dev_private;
|
|
struct drm_crtc *crtc;
|
|
int ret;
|
|
|
|
exynos_crtc = kzalloc(sizeof(*exynos_crtc), GFP_KERNEL);
|
|
if (!exynos_crtc)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
init_waitqueue_head(&exynos_crtc->pending_flip_queue);
|
|
|
|
exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
|
|
exynos_crtc->pipe = pipe;
|
|
exynos_crtc->type = type;
|
|
exynos_crtc->ops = ops;
|
|
exynos_crtc->ctx = ctx;
|
|
|
|
crtc = &exynos_crtc->base;
|
|
|
|
private->crtc[pipe] = crtc;
|
|
|
|
ret = drm_crtc_init_with_planes(drm_dev, crtc, plane, NULL,
|
|
&exynos_crtc_funcs);
|
|
if (ret < 0)
|
|
goto err_crtc;
|
|
|
|
drm_crtc_helper_add(crtc, &exynos_crtc_helper_funcs);
|
|
|
|
return exynos_crtc;
|
|
|
|
err_crtc:
|
|
plane->funcs->destroy(plane);
|
|
kfree(exynos_crtc);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int pipe)
|
|
{
|
|
struct exynos_drm_private *private = dev->dev_private;
|
|
struct exynos_drm_crtc *exynos_crtc =
|
|
to_exynos_crtc(private->crtc[pipe]);
|
|
|
|
if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
|
|
return -EPERM;
|
|
|
|
if (exynos_crtc->ops->enable_vblank)
|
|
exynos_crtc->ops->enable_vblank(exynos_crtc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
|
|
{
|
|
struct exynos_drm_private *private = dev->dev_private;
|
|
struct exynos_drm_crtc *exynos_crtc =
|
|
to_exynos_crtc(private->crtc[pipe]);
|
|
|
|
if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
|
|
return;
|
|
|
|
if (exynos_crtc->ops->disable_vblank)
|
|
exynos_crtc->ops->disable_vblank(exynos_crtc);
|
|
}
|
|
|
|
void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
|
|
{
|
|
struct exynos_drm_private *dev_priv = dev->dev_private;
|
|
struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&dev->event_lock, flags);
|
|
if (exynos_crtc->event) {
|
|
|
|
drm_send_vblank_event(dev, -1, exynos_crtc->event);
|
|
drm_vblank_put(dev, pipe);
|
|
wake_up(&exynos_crtc->pending_flip_queue);
|
|
|
|
}
|
|
|
|
exynos_crtc->event = NULL;
|
|
spin_unlock_irqrestore(&dev->event_lock, flags);
|
|
}
|
|
|
|
void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc;
|
|
struct drm_device *dev = fb->dev;
|
|
struct drm_crtc *crtc;
|
|
|
|
/*
|
|
* make sure that overlay data are updated to real hardware
|
|
* for all encoders.
|
|
*/
|
|
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
|
|
exynos_crtc = to_exynos_crtc(crtc);
|
|
|
|
/*
|
|
* wait for vblank interrupt
|
|
* - this makes sure that overlay data are updated to
|
|
* real hardware.
|
|
*/
|
|
if (exynos_crtc->ops->wait_for_vblank)
|
|
exynos_crtc->ops->wait_for_vblank(exynos_crtc);
|
|
}
|
|
}
|
|
|
|
int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
|
|
unsigned int out_type)
|
|
{
|
|
struct drm_crtc *crtc;
|
|
|
|
list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
|
|
struct exynos_drm_crtc *exynos_crtc;
|
|
|
|
exynos_crtc = to_exynos_crtc(crtc);
|
|
if (exynos_crtc->type == out_type)
|
|
return exynos_crtc->pipe;
|
|
}
|
|
|
|
return -EPERM;
|
|
}
|
|
|
|
void exynos_drm_crtc_te_handler(struct drm_crtc *crtc)
|
|
{
|
|
struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
|
|
|
|
if (exynos_crtc->ops->te_handler)
|
|
exynos_crtc->ops->te_handler(exynos_crtc);
|
|
}
|