mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-25 02:09:42 +00:00
Code Issues Releases Wiki Activity

drm/armada: convert overlay plane vbl worker to a armada plane worker

Browse source 
Convert the overlay plane to use the generic armada plane worker
infrastructure which is shared with the primary plane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2015-08-07 09:33:05 +01:00
parent 4b5dda82c2
commit 4a8506d2d6
3 changed files with 27 additions and 70 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

48
drivers/gpu/drm/armada/armada_crtc.c
View file

@ -226,44 +226,15 @@ int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout)
return wait_event_timeout(plane->frame_wait, !plane->work, timeout);
}
void armada_drm_vbl_event_add(struct armada_crtc *dcrtc,
struct armada_vbl_event *evt)
struct armada_plane_work *armada_drm_plane_work_cancel(
struct armada_crtc *dcrtc, struct armada_plane *plane)
{
unsigned long flags;
bool not_on_list;
struct armada_plane_work *work = xchg(&plane->work, NULL);
WARN_ON(drm_vblank_get(dcrtc->crtc.dev, dcrtc->num));
spin_lock_irqsave(&dcrtc->irq_lock, flags);
not_on_list = list_empty(&evt->node);
if (not_on_list)
list_add_tail(&evt->node, &dcrtc->vbl_list);
spin_unlock_irqrestore(&dcrtc->irq_lock, flags);
if (!not_on_list)
if (work)
drm_vblank_put(dcrtc->crtc.dev, dcrtc->num);
}
void armada_drm_vbl_event_remove(struct armada_crtc *dcrtc,
struct armada_vbl_event *evt)
{
spin_lock_irq(&dcrtc->irq_lock);
if (!list_empty(&evt->node)) {
list_del_init(&evt->node);
drm_vblank_put(dcrtc->crtc.dev, dcrtc->num);
}
spin_unlock_irq(&dcrtc->irq_lock);
}
static void armada_drm_vbl_event_run(struct armada_crtc *dcrtc)
{
struct armada_vbl_event *e, *n;
list_for_each_entry_safe(e, n, &dcrtc->vbl_list, node) {
list_del_init(&e->node);
drm_vblank_put(dcrtc->crtc.dev, dcrtc->num);
e->fn(dcrtc, e->data);
}
return work;
}
static int armada_drm_crtc_queue_frame_work(struct armada_crtc *dcrtc,
@ -429,6 +400,7 @@ static bool armada_drm_crtc_mode_fixup(struct drm_crtc *crtc,
static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat)
{
void __iomem *base = dcrtc->base;
struct drm_plane *ovl_plane;
if (stat & DMA_FF_UNDERFLOW)
DRM_ERROR("video underflow on crtc %u\n", dcrtc->num);
@ -439,7 +411,12 @@ static void armada_drm_crtc_irq(struct armada_crtc *dcrtc, u32 stat)
drm_handle_vblank(dcrtc->crtc.dev, dcrtc->num);
spin_lock(&dcrtc->irq_lock);
armada_drm_vbl_event_run(dcrtc);
ovl_plane = dcrtc->plane;
if (ovl_plane) {
struct armada_plane *plane = drm_to_armada_plane(ovl_plane);
armada_drm_plane_work_run(dcrtc, plane);
wake_up(&plane->frame_wait);
}
if (stat & GRA_FRAME_IRQ && dcrtc->interlaced) {
int i = stat & GRA_FRAME_IRQ0 ? 0 : 1;
@ -1188,7 +1165,6 @@ static int armada_drm_crtc_create(struct drm_device *drm, struct device *dev,
dcrtc->spu_iopad_ctrl = CFG_VSCALE_LN_EN | CFG_IOPAD_DUMB24;
spin_lock_init(&dcrtc->irq_lock);
dcrtc->irq_ena = CLEAN_SPU_IRQ_ISR;
INIT_LIST_HEAD(&dcrtc->vbl_list);
/* Initialize some registers which we don't otherwise set */
writel_relaxed(0x00000001, dcrtc->base + LCD_CFG_SCLK_DIV);

20
drivers/gpu/drm/armada/armada_crtc.h
View file

@ -52,6 +52,8 @@ int armada_drm_plane_init(struct armada_plane *plane);
int armada_drm_plane_work_queue(struct armada_crtc *dcrtc,
struct armada_plane *plane, struct armada_plane_work *work);
int armada_drm_plane_work_wait(struct armada_plane *plane, long timeout);
struct armada_plane_work *armada_drm_plane_work_cancel(
struct armada_crtc *dcrtc, struct armada_plane *plane);
struct armada_crtc {
struct drm_crtc crtc;
@ -87,27 +89,9 @@ struct armada_crtc {
spinlock_t irq_lock;
uint32_t irq_ena;
struct list_head vbl_list;
};
#define drm_to_armada_crtc(c) container_of(c, struct armada_crtc, crtc)
struct armada_vbl_event {
struct list_head node;
void *data;
void (*fn)(struct armada_crtc *, void *);
};
void armada_drm_vbl_event_add(struct armada_crtc *,
struct armada_vbl_event *);
void armada_drm_vbl_event_remove(struct armada_crtc *,
struct armada_vbl_event *);
#define armada_drm_vbl_event_init(_e, _f, _d) do { \
struct armada_vbl_event *__e = _e; \
INIT_LIST_HEAD(&__e->node); \
__e->data = _d; \
__e->fn = _f; \
} while (0)
void armada_drm_crtc_gamma_set(struct drm_crtc *, u16, u16, u16, int);
void armada_drm_crtc_gamma_get(struct drm_crtc *, u16 *, u16 *, u16 *, int);
void armada_drm_crtc_disable_irq(struct armada_crtc *, u32);

29
drivers/gpu/drm/armada/armada_overlay.c
View file

@ -37,7 +37,7 @@ struct armada_ovl_plane {
uint32_t dst_yx;
uint32_t ctrl0;
struct {
struct armada_vbl_event update;
struct armada_plane_work work;
struct armada_regs regs[13];
} vbl;
struct armada_ovl_plane_properties prop;
@ -82,14 +82,13 @@ static void armada_ovl_retire_fb(struct armada_ovl_plane *dplane,
}
/* === Plane support === */
static void armada_ovl_plane_vbl(struct armada_crtc *dcrtc, void *data)
static void armada_ovl_plane_work(struct armada_crtc *dcrtc,
struct armada_plane *plane, struct armada_plane_work *work)
{
struct armada_ovl_plane *dplane = data;
struct armada_ovl_plane *dplane = container_of(plane, struct armada_ovl_plane, base);
armada_drm_crtc_update_regs(dcrtc, dplane->vbl.regs);
armada_ovl_retire_fb(dplane, NULL);
wake_up(&dplane->base.frame_wait);
}
static int
@ -162,9 +161,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
dcrtc->base + LCD_SPU_SRAM_PARA1);
}
wait_event_timeout(dplane->base.frame_wait,
list_empty(&dplane->vbl.update.node),
HZ/25);
if (armada_drm_plane_work_wait(&dplane->base, HZ / 25) == 0)
armada_drm_plane_work_cancel(dcrtc, &dplane->base);
if (plane->fb != fb) {
struct armada_gem_object *obj = drm_fb_obj(fb);
@ -255,7 +253,8 @@ armada_ovl_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
}
if (idx) {
armada_reg_queue_end(dplane->vbl.regs, idx);
armada_drm_vbl_event_add(dcrtc, &dplane->vbl.update);
armada_drm_plane_work_queue(dcrtc, &dplane->base,
&dplane->vbl.work);
}
return 0;
}
@ -270,14 +269,13 @@ static int armada_ovl_plane_disable(struct drm_plane *plane)
return 0;
dcrtc = drm_to_armada_crtc(dplane->base.base.crtc);
dcrtc->plane = NULL;
armada_drm_vbl_event_remove(dcrtc, &dplane->vbl.update);
dplane->ctrl0 = 0;
armada_drm_plane_work_cancel(dcrtc, &dplane->base);
armada_drm_crtc_plane_disable(dcrtc, plane);
dcrtc->plane = NULL;
dplane->ctrl0 = 0;
fb = xchg(&dplane->old_fb, NULL);
if (fb)
drm_framebuffer_unreference(fb);
@ -456,8 +454,7 @@ int armada_overlay_plane_create(struct drm_device *dev, unsigned long crtcs)
return ret;
}
armada_drm_vbl_event_init(&dplane->vbl.update, armada_ovl_plane_vbl,
dplane);
dplane->vbl.work.fn = armada_ovl_plane_work;
ret = drm_universal_plane_init(dev, &dplane->base.base, crtcs,
&armada_ovl_plane_funcs,