We'll want basically the same thing for mdp5, so refactor it out so it can be shared.
Signed-off-by: Rob Clark robdclark@gmail.com --- drivers/gpu/drm/msm/Makefile | 1 + drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c | 20 ++-- drivers/gpu/drm/msm/mdp/mdp4/mdp4_dtv_encoder.c | 4 +- drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c | 142 +++-------------------- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 16 ++- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h | 26 +---- drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c | 2 +- drivers/gpu/drm/msm/mdp/mdp_kms.c | 144 ++++++++++++++++++++++++ drivers/gpu/drm/msm/mdp/mdp_kms.h | 57 +++++++++- drivers/gpu/drm/msm/msm_kms.h | 11 ++ 10 files changed, 254 insertions(+), 169 deletions(-) create mode 100644 drivers/gpu/drm/msm/mdp/mdp_kms.c
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile index 33d7fac..68221f6 100644 --- a/drivers/gpu/drm/msm/Makefile +++ b/drivers/gpu/drm/msm/Makefile @@ -13,6 +13,7 @@ msm-y := \ hdmi/hdmi_phy_8960.o \ hdmi/hdmi_phy_8x60.o \ mdp/mdp_format.o \ + mdp/mdp_kms.o \ mdp/mdp4/mdp4_crtc.o \ mdp/mdp4/mdp4_dtv_encoder.o \ mdp/mdp4/mdp4_format.o \ diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c index c11400a..1964f4f 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c @@ -66,15 +66,15 @@ struct mdp4_crtc { /* for unref'ing cursor bo's after scanout completes: */ struct drm_flip_work unref_cursor_work;
- struct mdp4_irq vblank; - struct mdp4_irq err; + struct mdp_irq vblank; + struct mdp_irq err; }; #define to_mdp4_crtc(x) container_of(x, struct mdp4_crtc, base)
static struct mdp4_kms *get_kms(struct drm_crtc *crtc) { struct msm_drm_private *priv = crtc->dev->dev_private; - return to_mdp4_kms(priv->kms); + return to_mdp4_kms(to_mdp_kms(priv->kms)); }
static void update_fb(struct drm_crtc *crtc, bool async, @@ -93,7 +93,7 @@ static void update_fb(struct drm_crtc *crtc, bool async,
if (!async) { /* enable vblank to pick up the old_fb */ - mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); + mdp_irq_register(&get_kms(crtc)->base, &mdp4_crtc->vblank); } }
@@ -145,7 +145,7 @@ static void request_pending(struct drm_crtc *crtc, uint32_t pending) struct mdp4_crtc *mdp4_crtc = to_mdp4_crtc(crtc);
atomic_or(pending, &mdp4_crtc->pending); - mdp4_irq_register(get_kms(crtc), &mdp4_crtc->vblank); + mdp_irq_register(&get_kms(crtc)->base, &mdp4_crtc->vblank); }
static void pageflip_cb(struct msm_fence_cb *cb) @@ -210,9 +210,9 @@ static void mdp4_crtc_dpms(struct drm_crtc *crtc, int mode) if (enabled != mdp4_crtc->enabled) { if (enabled) { mdp4_enable(mdp4_kms); - mdp4_irq_register(mdp4_kms, &mdp4_crtc->err); + mdp_irq_register(&mdp4_kms->base, &mdp4_crtc->err); } else { - mdp4_irq_unregister(mdp4_kms, &mdp4_crtc->err); + mdp_irq_unregister(&mdp4_kms->base, &mdp4_crtc->err); mdp4_disable(mdp4_kms); } mdp4_crtc->enabled = enabled; @@ -571,14 +571,14 @@ static const struct drm_crtc_helper_funcs mdp4_crtc_helper_funcs = { .load_lut = mdp4_crtc_load_lut, };
-static void mdp4_crtc_vblank_irq(struct mdp4_irq *irq, uint32_t irqstatus) +static void mdp4_crtc_vblank_irq(struct mdp_irq *irq, uint32_t irqstatus) { struct mdp4_crtc *mdp4_crtc = container_of(irq, struct mdp4_crtc, vblank); struct drm_crtc *crtc = &mdp4_crtc->base; struct msm_drm_private *priv = crtc->dev->dev_private; unsigned pending;
- mdp4_irq_unregister(get_kms(crtc), &mdp4_crtc->vblank); + mdp_irq_unregister(&get_kms(crtc)->base, &mdp4_crtc->vblank);
pending = atomic_xchg(&mdp4_crtc->pending, 0);
@@ -593,7 +593,7 @@ static void mdp4_crtc_vblank_irq(struct mdp4_irq *irq, uint32_t irqstatus) } }
-static void mdp4_crtc_err_irq(struct mdp4_irq *irq, uint32_t irqstatus) +static void mdp4_crtc_err_irq(struct mdp_irq *irq, uint32_t irqstatus) { struct mdp4_crtc *mdp4_crtc = container_of(irq, struct mdp4_crtc, err); struct drm_crtc *crtc = &mdp4_crtc->base; diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_dtv_encoder.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_dtv_encoder.c index 3799ccc..067ed03 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_dtv_encoder.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_dtv_encoder.c @@ -35,7 +35,7 @@ struct mdp4_dtv_encoder { static struct mdp4_kms *get_kms(struct drm_encoder *encoder) { struct msm_drm_private *priv = encoder->dev->dev_private; - return to_mdp4_kms(priv->kms); + return to_mdp4_kms(to_mdp_kms(priv->kms)); }
#ifdef CONFIG_MSM_BUS_SCALING @@ -137,7 +137,7 @@ static void mdp4_dtv_encoder_dpms(struct drm_encoder *encoder, int mode) * the settings changes for the new modeset (like new * scanout buffer) don't latch properly.. */ - mdp4_irq_wait(mdp4_kms, MDP4_IRQ_EXTERNAL_VSYNC); + mdp_irq_wait(&mdp4_kms->base, MDP4_IRQ_EXTERNAL_VSYNC);
clk_disable_unprepare(mdp4_dtv_encoder->src_clk); clk_disable_unprepare(mdp4_dtv_encoder->hdmi_clk); diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c index 5c6b7fc..c740ccd 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c @@ -19,77 +19,49 @@ #include "msm_drv.h" #include "mdp4_kms.h"
- -struct mdp4_irq_wait { - struct mdp4_irq irq; - int count; -}; - -static DECLARE_WAIT_QUEUE_HEAD(wait_event); - -static DEFINE_SPINLOCK(list_lock); - -static void update_irq(struct mdp4_kms *mdp4_kms) +void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask) { - struct mdp4_irq *irq; - uint32_t irqmask = mdp4_kms->vblank_mask; - - BUG_ON(!spin_is_locked(&list_lock)); - - list_for_each_entry(irq, &mdp4_kms->irq_list, node) - irqmask |= irq->irqmask; - - mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, irqmask); + mdp4_write(to_mdp4_kms(mdp_kms), REG_MDP4_INTR_ENABLE, irqmask); }
-static void update_irq_unlocked(struct mdp4_kms *mdp4_kms) -{ - unsigned long flags; - spin_lock_irqsave(&list_lock, flags); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); -} - -static void mdp4_irq_error_handler(struct mdp4_irq *irq, uint32_t irqstatus) +static void mdp4_irq_error_handler(struct mdp_irq *irq, uint32_t irqstatus) { DRM_ERROR("errors: %08x\n", irqstatus); }
void mdp4_irq_preinstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); mdp4_write(mdp4_kms, REG_MDP4_INTR_CLEAR, 0xffffffff); }
int mdp4_irq_postinstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - struct mdp4_irq *error_handler = &mdp4_kms->error_handler; - - INIT_LIST_HEAD(&mdp4_kms->irq_list); + struct mdp_kms *mdp_kms = to_mdp_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(mdp_kms); + struct mdp_irq *error_handler = &mdp4_kms->error_handler;
error_handler->irq = mdp4_irq_error_handler; error_handler->irqmask = MDP4_IRQ_PRIMARY_INTF_UDERRUN | MDP4_IRQ_EXTERNAL_INTF_UDERRUN;
- mdp4_irq_register(mdp4_kms, error_handler); + mdp_irq_register(mdp_kms, error_handler);
return 0; }
void mdp4_irq_uninstall(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); mdp4_write(mdp4_kms, REG_MDP4_INTR_ENABLE, 0x00000000); }
irqreturn_t mdp4_irq(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp_kms *mdp_kms = to_mdp_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(mdp_kms); struct drm_device *dev = mdp4_kms->dev; struct msm_drm_private *priv = dev->dev_private; - struct mdp4_irq *handler, *n; - unsigned long flags; unsigned int id; uint32_t status;
@@ -102,102 +74,20 @@ irqreturn_t mdp4_irq(struct msm_kms *kms) if (status & mdp4_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id);
- spin_lock_irqsave(&list_lock, flags); - mdp4_kms->in_irq = true; - list_for_each_entry_safe(handler, n, &mdp4_kms->irq_list, node) { - if (handler->irqmask & status) { - spin_unlock_irqrestore(&list_lock, flags); - handler->irq(handler, handler->irqmask & status); - spin_lock_irqsave(&list_lock, flags); - } - } - mdp4_kms->in_irq = false; - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); + mdp_dispatch_irqs(mdp_kms, status);
return IRQ_HANDLED; }
int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - unsigned long flags; - - spin_lock_irqsave(&list_lock, flags); - mdp4_kms->vblank_mask |= mdp4_crtc_vblank(crtc); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); - + mdp_update_vblank_mask(to_mdp_kms(kms), + mdp4_crtc_vblank(crtc), true); return 0; }
void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); - unsigned long flags; - - spin_lock_irqsave(&list_lock, flags); - mdp4_kms->vblank_mask &= ~mdp4_crtc_vblank(crtc); - update_irq(mdp4_kms); - spin_unlock_irqrestore(&list_lock, flags); -} - -static void wait_irq(struct mdp4_irq *irq, uint32_t irqstatus) -{ - struct mdp4_irq_wait *wait = - container_of(irq, struct mdp4_irq_wait, irq); - wait->count--; - wake_up_all(&wait_event); -} - -void mdp4_irq_wait(struct mdp4_kms *mdp4_kms, uint32_t irqmask) -{ - struct mdp4_irq_wait wait = { - .irq = { - .irq = wait_irq, - .irqmask = irqmask, - }, - .count = 1, - }; - mdp4_irq_register(mdp4_kms, &wait.irq); - wait_event(wait_event, (wait.count <= 0)); - mdp4_irq_unregister(mdp4_kms, &wait.irq); -} - -void mdp4_irq_register(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq) -{ - unsigned long flags; - bool needs_update = false; - - spin_lock_irqsave(&list_lock, flags); - - if (!irq->registered) { - irq->registered = true; - list_add(&irq->node, &mdp4_kms->irq_list); - needs_update = !mdp4_kms->in_irq; - } - - spin_unlock_irqrestore(&list_lock, flags); - - if (needs_update) - update_irq_unlocked(mdp4_kms); -} - -void mdp4_irq_unregister(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq) -{ - unsigned long flags; - bool needs_update = false; - - spin_lock_irqsave(&list_lock, flags); - - if (irq->registered) { - irq->registered = false; - list_del(&irq->node); - needs_update = !mdp4_kms->in_irq; - } - - spin_unlock_irqrestore(&list_lock, flags); - - if (needs_update) - update_irq_unlocked(mdp4_kms); + mdp_update_vblank_mask(to_mdp_kms(kms), + mdp4_crtc_vblank(crtc), false); } diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index ee4b27e..4d1cc2e 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -24,7 +24,7 @@ static struct mdp4_platform_config *mdp4_get_config(struct platform_device *dev)
static int mdp4_hw_init(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); struct drm_device *dev = mdp4_kms->dev; uint32_t version, major, minor, dmap_cfg, vg_cfg; unsigned long clk; @@ -133,7 +133,7 @@ static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate,
static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); struct msm_drm_private *priv = mdp4_kms->dev->dev_private; unsigned i;
@@ -143,11 +143,12 @@ static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file)
static void mdp4_destroy(struct msm_kms *kms) { - struct mdp4_kms *mdp4_kms = to_mdp4_kms(kms); + struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); kfree(mdp4_kms); }
-static const struct msm_kms_funcs kms_funcs = { +static const struct mdp_kms_funcs kms_funcs = { + .base = { .hw_init = mdp4_hw_init, .irq_preinstall = mdp4_irq_preinstall, .irq_postinstall = mdp4_irq_postinstall, @@ -159,6 +160,8 @@ static const struct msm_kms_funcs kms_funcs = { .round_pixclk = mdp4_round_pixclk, .preclose = mdp4_preclose, .destroy = mdp4_destroy, + }, + .set_irqmask = mdp4_set_irqmask, };
int mdp4_disable(struct mdp4_kms *mdp4_kms) @@ -273,8 +276,9 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) goto fail; }
- kms = &mdp4_kms->base; - kms->funcs = &kms_funcs; + mdp_kms_init(&mdp4_kms->base, &kms_funcs); + + kms = &mdp4_kms->base.base;
mdp4_kms->dev = dev;
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h index d5e6819..66a4d31 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h @@ -23,22 +23,8 @@ #include "mdp/mdp_kms.h" #include "mdp4.xml.h"
- -/* For transiently registering for different MDP4 irqs that various parts - * of the KMS code need during setup/configuration. We these are not - * necessarily the same as what drm_vblank_get/put() are requesting, and - * the hysteresis in drm_vblank_put() is not necessarily desirable for - * internal housekeeping related irq usage. - */ -struct mdp4_irq { - struct list_head node; - uint32_t irqmask; - bool registered; - void (*irq)(struct mdp4_irq *irq, uint32_t irqstatus); -}; - struct mdp4_kms { - struct msm_kms base; + struct mdp_kms base;
struct drm_device *dev;
@@ -57,11 +43,7 @@ struct mdp4_kms { struct clk *pclk; struct clk *lut_clk;
- /* irq handling: */ - bool in_irq; - struct list_head irq_list; /* list of mdp4_irq */ - uint32_t vblank_mask; /* irq bits set for userspace vblank */ - struct mdp4_irq error_handler; + struct mdp_irq error_handler; }; #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base)
@@ -166,13 +148,11 @@ static inline uint32_t mixercfg(int mixer, enum mdp4_pipe pipe, int mdp4_disable(struct mdp4_kms *mdp4_kms); int mdp4_enable(struct mdp4_kms *mdp4_kms);
+void mdp4_set_irqmask(struct mdp_kms *mdp_kms, uint32_t irqmask); void mdp4_irq_preinstall(struct msm_kms *kms); int mdp4_irq_postinstall(struct msm_kms *kms); void mdp4_irq_uninstall(struct msm_kms *kms); irqreturn_t mdp4_irq(struct msm_kms *kms); -void mdp4_irq_wait(struct mdp4_kms *mdp4_kms, uint32_t irqmask); -void mdp4_irq_register(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq); -void mdp4_irq_unregister(struct mdp4_kms *mdp4_kms, struct mdp4_irq *irq); int mdp4_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc); void mdp4_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc);
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c index d2edf2b..2406027 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_plane.c @@ -34,7 +34,7 @@ struct mdp4_plane { static struct mdp4_kms *get_kms(struct drm_plane *plane) { struct msm_drm_private *priv = plane->dev->dev_private; - return to_mdp4_kms(priv->kms); + return to_mdp4_kms(to_mdp_kms(priv->kms)); }
static int mdp4_plane_update(struct drm_plane *plane, diff --git a/drivers/gpu/drm/msm/mdp/mdp_kms.c b/drivers/gpu/drm/msm/mdp/mdp_kms.c new file mode 100644 index 0000000..3be48f7 --- /dev/null +++ b/drivers/gpu/drm/msm/mdp/mdp_kms.c @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2013 Red Hat + * Author: Rob Clark robdclark@gmail.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see http://www.gnu.org/licenses/. + */ + + +#include "msm_drv.h" +#include "mdp_kms.h" + + +struct mdp_irq_wait { + struct mdp_irq irq; + int count; +}; + +static DECLARE_WAIT_QUEUE_HEAD(wait_event); + +static DEFINE_SPINLOCK(list_lock); + +static void update_irq(struct mdp_kms *mdp_kms) +{ + struct mdp_irq *irq; + uint32_t irqmask = mdp_kms->vblank_mask; + + BUG_ON(!spin_is_locked(&list_lock)); + + list_for_each_entry(irq, &mdp_kms->irq_list, node) + irqmask |= irq->irqmask; + + mdp_kms->funcs->set_irqmask(mdp_kms, irqmask); +} + +static void update_irq_unlocked(struct mdp_kms *mdp_kms) +{ + unsigned long flags; + spin_lock_irqsave(&list_lock, flags); + update_irq(mdp_kms); + spin_unlock_irqrestore(&list_lock, flags); +} + +void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status) +{ + struct mdp_irq *handler, *n; + unsigned long flags; + + spin_lock_irqsave(&list_lock, flags); + mdp_kms->in_irq = true; + list_for_each_entry_safe(handler, n, &mdp_kms->irq_list, node) { + if (handler->irqmask & status) { + spin_unlock_irqrestore(&list_lock, flags); + handler->irq(handler, handler->irqmask & status); + spin_lock_irqsave(&list_lock, flags); + } + } + mdp_kms->in_irq = false; + update_irq(mdp_kms); + spin_unlock_irqrestore(&list_lock, flags); + +} + +void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable) +{ + unsigned long flags; + + spin_lock_irqsave(&list_lock, flags); + if (enable) + mdp_kms->vblank_mask |= mask; + else + mdp_kms->vblank_mask &= ~mask; + update_irq(mdp_kms); + spin_unlock_irqrestore(&list_lock, flags); +} + +static void wait_irq(struct mdp_irq *irq, uint32_t irqstatus) +{ + struct mdp_irq_wait *wait = + container_of(irq, struct mdp_irq_wait, irq); + wait->count--; + wake_up_all(&wait_event); +} + +void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask) +{ + struct mdp_irq_wait wait = { + .irq = { + .irq = wait_irq, + .irqmask = irqmask, + }, + .count = 1, + }; + mdp_irq_register(mdp_kms, &wait.irq); + wait_event(wait_event, (wait.count <= 0)); + mdp_irq_unregister(mdp_kms, &wait.irq); +} + +void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq) +{ + unsigned long flags; + bool needs_update = false; + + spin_lock_irqsave(&list_lock, flags); + + if (!irq->registered) { + irq->registered = true; + list_add(&irq->node, &mdp_kms->irq_list); + needs_update = !mdp_kms->in_irq; + } + + spin_unlock_irqrestore(&list_lock, flags); + + if (needs_update) + update_irq_unlocked(mdp_kms); +} + +void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq) +{ + unsigned long flags; + bool needs_update = false; + + spin_lock_irqsave(&list_lock, flags); + + if (irq->registered) { + irq->registered = false; + list_del(&irq->node); + needs_update = !mdp_kms->in_irq; + } + + spin_unlock_irqrestore(&list_lock, flags); + + if (needs_update) + update_irq_unlocked(mdp_kms); +} diff --git a/drivers/gpu/drm/msm/mdp/mdp_kms.h b/drivers/gpu/drm/msm/mdp/mdp_kms.h index 710edf7..99557b5 100644 --- a/drivers/gpu/drm/msm/mdp/mdp_kms.h +++ b/drivers/gpu/drm/msm/mdp/mdp_kms.h @@ -23,8 +23,64 @@ #include <linux/regulator/consumer.h>
#include "msm_drv.h" +#include "msm_kms.h" #include "mdp_common.xml.h"
+struct mdp_kms; + +struct mdp_kms_funcs { + struct msm_kms_funcs base; + void (*set_irqmask)(struct mdp_kms *mdp_kms, uint32_t irqmask); +}; + +struct mdp_kms { + struct msm_kms base; + + const struct mdp_kms_funcs *funcs; + + /* irq handling: */ + bool in_irq; + struct list_head irq_list; /* list of mdp4_irq */ + uint32_t vblank_mask; /* irq bits set for userspace vblank */ +}; +#define to_mdp_kms(x) container_of(x, struct mdp_kms, base) + +static inline void mdp_kms_init(struct mdp_kms *mdp_kms, + const struct mdp_kms_funcs *funcs) +{ + mdp_kms->funcs = funcs; + INIT_LIST_HEAD(&mdp_kms->irq_list); + msm_kms_init(&mdp_kms->base, &funcs->base); +} + +/* + * irq helpers: + */ + +/* For transiently registering for different MDP irqs that various parts + * of the KMS code need during setup/configuration. These are not + * necessarily the same as what drm_vblank_get/put() are requesting, and + * the hysteresis in drm_vblank_put() is not necessarily desirable for + * internal housekeeping related irq usage. + */ +struct mdp_irq { + struct list_head node; + uint32_t irqmask; + bool registered; + void (*irq)(struct mdp_irq *irq, uint32_t irqstatus); +}; + +void mdp_dispatch_irqs(struct mdp_kms *mdp_kms, uint32_t status); +void mdp_update_vblank_mask(struct mdp_kms *mdp_kms, uint32_t mask, bool enable); +void mdp_irq_wait(struct mdp_kms *mdp_kms, uint32_t irqmask); +void mdp_irq_register(struct mdp_kms *mdp_kms, struct mdp_irq *irq); +void mdp_irq_unregister(struct mdp_kms *mdp_kms, struct mdp_irq *irq); + + +/* + * pixel format helpers: + */ + struct mdp_format { struct msm_format base; enum mdp_bpc bpc_r, bpc_g, bpc_b; @@ -35,7 +91,6 @@ struct mdp_format { }; #define to_mdp_format(x) container_of(x, struct mdp_format, base)
- uint32_t mdp_get_formats(uint32_t *formats, uint32_t max_formats); const struct msm_format *mdp_get_format(struct msm_kms *kms, uint32_t format);
diff --git a/drivers/gpu/drm/msm/msm_kms.h b/drivers/gpu/drm/msm/msm_kms.h index e42973c..0643774 100644 --- a/drivers/gpu/drm/msm/msm_kms.h +++ b/drivers/gpu/drm/msm/msm_kms.h @@ -49,8 +49,19 @@ struct msm_kms_funcs {
struct msm_kms { const struct msm_kms_funcs *funcs; + + /* irq handling: */ + bool in_irq; + struct list_head irq_list; /* list of mdp4_irq */ + uint32_t vblank_mask; /* irq bits set for userspace vblank */ };
+static inline void msm_kms_init(struct msm_kms *kms, + const struct msm_kms_funcs *funcs) +{ + kms->funcs = funcs; +} + struct msm_kms *mdp4_kms_init(struct drm_device *dev); struct msm_kms *mdp5_kms_init(struct drm_device *dev);