提交 ac741ab7 编写于 作者: J Jesse Barnes 提交者: Dave Airlie

drm/vbl rework: rework how the drm deals with vblank.

Other Authors: Michel Dänzer <michel@tungstengraphics.com>
mga: Ian Romanick <idr@us.ibm.com>
via: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>

This re-works the DRM internals to provide a better interface for drivers
to expose vblank on multiple crtcs.

It also includes work done by Michel on making i915 triple buffering and pageflipping work properly.
Signed-off-by: NDave Airlie <airlied@redhat.com>
上级 2c14f28b
......@@ -471,6 +471,7 @@ struct drm_irq_busid {
enum drm_vblank_seq_type {
_DRM_VBLANK_ABSOLUTE = 0x0, /**< Wait for specific vblank sequence number */
_DRM_VBLANK_RELATIVE = 0x1, /**< Wait for given number of vblanks */
_DRM_VBLANK_FLIP = 0x8000000, /**< Scheduled buffer swap should flip */
_DRM_VBLANK_NEXTONMISS = 0x10000000, /**< If missed, wait for next vblank */
_DRM_VBLANK_SECONDARY = 0x20000000, /**< Secondary display controller */
_DRM_VBLANK_SIGNAL = 0x40000000 /**< Send signal instead of blocking */
......@@ -503,6 +504,21 @@ union drm_wait_vblank {
struct drm_wait_vblank_reply reply;
};
enum drm_modeset_ctl_cmd {
_DRM_PRE_MODESET = 1,
_DRM_POST_MODESET = 2,
};
/**
* DRM_IOCTL_MODESET_CTL ioctl argument type
*
* \sa drmModesetCtl().
*/
struct drm_modeset_ctl {
unsigned long arg;
enum drm_modeset_ctl_cmd cmd;
};
/**
* DRM_IOCTL_AGP_ENABLE ioctl argument type.
*
......@@ -587,6 +603,7 @@ struct drm_set_version {
#define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, struct drm_client)
#define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, struct drm_stats)
#define DRM_IOCTL_SET_VERSION DRM_IOWR(0x07, struct drm_set_version)
#define DRM_IOCTL_MODESET_CTL DRM_IOW(0x08, struct drm_modeset_ctl)
#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, struct drm_unique)
#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, struct drm_auth)
......
......@@ -100,10 +100,8 @@ struct drm_device;
#define DRIVER_HAVE_DMA 0x20
#define DRIVER_HAVE_IRQ 0x40
#define DRIVER_IRQ_SHARED 0x80
#define DRIVER_IRQ_VBL 0x100
#define DRIVER_DMA_QUEUE 0x200
#define DRIVER_FB_DMA 0x400
#define DRIVER_IRQ_VBL2 0x800
/***********************************************************************/
/** \name Begin the DRM... */
......@@ -579,10 +577,52 @@ struct drm_driver {
int (*context_dtor) (struct drm_device *dev, int context);
int (*kernel_context_switch) (struct drm_device *dev, int old,
int new);
void (*kernel_context_switch_unlock) (struct drm_device *dev);
int (*vblank_wait) (struct drm_device *dev, unsigned int *sequence);
int (*vblank_wait2) (struct drm_device *dev, unsigned int *sequence);
int (*dri_library_name) (struct drm_device *dev, char *buf);
void (*kernel_context_switch_unlock) (struct drm_device * dev);
/**
* get_vblank_counter - get raw hardware vblank counter
* @dev: DRM device
* @crtc: counter to fetch
*
* Driver callback for fetching a raw hardware vblank counter
* for @crtc. If a device doesn't have a hardware counter, the
* driver can simply return the value of drm_vblank_count and
* make the enable_vblank() and disable_vblank() hooks into no-ops,
* leaving interrupts enabled at all times.
*
* Wraparound handling and loss of events due to modesetting is dealt
* with in the DRM core code.
*
* RETURNS
* Raw vblank counter value.
*/
u32 (*get_vblank_counter) (struct drm_device *dev, int crtc);
/**
* enable_vblank - enable vblank interrupt events
* @dev: DRM device
* @crtc: which irq to enable
*
* Enable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, this routine should be a no-op, since
* interrupts will have to stay on to keep the count accurate.
*
* RETURNS
* Zero on success, appropriate errno if the given @crtc's vblank
* interrupt cannot be enabled.
*/
int (*enable_vblank) (struct drm_device *dev, int crtc);
/**
* disable_vblank - disable vblank interrupt events
* @dev: DRM device
* @crtc: which irq to enable
*
* Disable vblank interrupts for @crtc. If the device doesn't have
* a hardware vblank counter, this routine should be a no-op, since
* interrupts will have to stay on to keep the count accurate.
*/
void (*disable_vblank) (struct drm_device *dev, int crtc);
int (*dri_library_name) (struct drm_device *dev, char * buf);
/**
* Called by \c drm_device_is_agp. Typically used to determine if a
......@@ -601,7 +641,7 @@ struct drm_driver {
irqreturn_t(*irq_handler) (DRM_IRQ_ARGS);
void (*irq_preinstall) (struct drm_device *dev);
void (*irq_postinstall) (struct drm_device *dev);
int (*irq_postinstall) (struct drm_device *dev);
void (*irq_uninstall) (struct drm_device *dev);
void (*reclaim_buffers) (struct drm_device *dev,
struct drm_file * file_priv);
......@@ -730,13 +770,21 @@ struct drm_device {
/** \name VBLANK IRQ support */
/*@{ */
wait_queue_head_t vbl_queue; /**< VBLANK wait queue */
atomic_t vbl_received;
atomic_t vbl_received2; /**< number of secondary VBLANK interrupts */
wait_queue_head_t *vbl_queue; /**< VBLANK wait queue */
atomic_t *_vblank_count; /**< number of VBLANK interrupts (driver must alloc the right number of counters) */
spinlock_t vbl_lock;
struct list_head vbl_sigs; /**< signal list to send on VBLANK */
struct list_head vbl_sigs2; /**< signals to send on secondary VBLANK */
unsigned int vbl_pending;
struct list_head *vbl_sigs; /**< signal list to send on VBLANK */
atomic_t vbl_signal_pending; /* number of signals pending on all crtcs*/
atomic_t *vblank_refcount; /* number of users of vblank interrupts per crtc */
u32 *last_vblank; /* protected by dev->vbl_lock, used */
/* for wraparound handling */
u32 *vblank_offset; /* used to track how many vblanks */
int *vblank_enabled; /* so we don't call enable more than
once per disable */
u32 *vblank_premodeset; /* were lost during modeset */
struct timer_list vblank_disable_timer;
unsigned long max_vblank_count; /**< size of vblank counter register */
spinlock_t tasklet_lock; /**< For drm_locked_tasklet */
void (*locked_tasklet_func)(struct drm_device *dev);
......@@ -756,6 +804,7 @@ struct drm_device {
#ifdef __alpha__
struct pci_controller *hose;
#endif
int num_crtcs; /**< Number of CRTCs on this device */
struct drm_sg_mem *sg; /**< Scatter gather memory */
void *dev_private; /**< device private data */
struct drm_sigdata sigdata; /**< For block_all_signals */
......@@ -990,11 +1039,19 @@ extern void drm_driver_irq_preinstall(struct drm_device *dev);
extern void drm_driver_irq_postinstall(struct drm_device *dev);
extern void drm_driver_irq_uninstall(struct drm_device *dev);
extern int drm_wait_vblank(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq);
extern void drm_vbl_send_signals(struct drm_device *dev);
extern int drm_vblank_init(struct drm_device *dev, int num_crtcs);
extern int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *filp);
extern int drm_vblank_wait(struct drm_device * dev, unsigned int *vbl_seq);
extern void drm_locked_tasklet(struct drm_device *dev, void(*func)(struct drm_device*));
extern u32 drm_vblank_count(struct drm_device *dev, int crtc);
extern void drm_update_vblank_count(struct drm_device *dev, int crtc);
extern void drm_handle_vblank(struct drm_device *dev, int crtc);
extern int drm_vblank_get(struct drm_device *dev, int crtc);
extern void drm_vblank_put(struct drm_device *dev, int crtc);
/* Modesetting support */
extern int drm_modeset_ctl(struct drm_device *dev, void *data,
struct drm_file *file_priv);
/* AGP/GART support (drm_agpsupport.h) */
extern struct drm_agp_head *drm_agp_init(struct drm_device *dev);
......
......@@ -71,6 +71,117 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
return 0;
}
static void vblank_disable_fn(unsigned long arg)
{
struct drm_device *dev = (struct drm_device *)arg;
unsigned long irqflags;
int i;
for (i = 0; i < dev->num_crtcs; i++) {
spin_lock_irqsave(&dev->vbl_lock, irqflags);
if (atomic_read(&dev->vblank_refcount[i]) == 0 &&
dev->vblank_enabled[i]) {
dev->driver->disable_vblank(dev, i);
dev->vblank_enabled[i] = 0;
}
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
}
}
static void drm_vblank_cleanup(struct drm_device *dev)
{
/* Bail if the driver didn't call drm_vblank_init() */
if (dev->num_crtcs == 0)
return;
del_timer(&dev->vblank_disable_timer);
vblank_disable_fn((unsigned long)dev);
drm_free(dev->vbl_queue, sizeof(*dev->vbl_queue) * dev->num_crtcs,
DRM_MEM_DRIVER);
drm_free(dev->vbl_sigs, sizeof(*dev->vbl_sigs) * dev->num_crtcs,
DRM_MEM_DRIVER);
drm_free(dev->_vblank_count, sizeof(*dev->_vblank_count) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_refcount, sizeof(*dev->vblank_refcount) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_enabled, sizeof(*dev->vblank_enabled) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->last_vblank, sizeof(*dev->last_vblank) * dev->num_crtcs,
DRM_MEM_DRIVER);
drm_free(dev->vblank_premodeset, sizeof(*dev->vblank_premodeset) *
dev->num_crtcs, DRM_MEM_DRIVER);
drm_free(dev->vblank_offset, sizeof(*dev->vblank_offset) * dev->num_crtcs,
DRM_MEM_DRIVER);
dev->num_crtcs = 0;
}
int drm_vblank_init(struct drm_device *dev, int num_crtcs)
{
int i, ret = -ENOMEM;
setup_timer(&dev->vblank_disable_timer, vblank_disable_fn,
(unsigned long)dev);
spin_lock_init(&dev->vbl_lock);
atomic_set(&dev->vbl_signal_pending, 0);
dev->num_crtcs = num_crtcs;
dev->vbl_queue = drm_alloc(sizeof(wait_queue_head_t) * num_crtcs,
DRM_MEM_DRIVER);
if (!dev->vbl_queue)
goto err;
dev->vbl_sigs = drm_alloc(sizeof(struct list_head) * num_crtcs,
DRM_MEM_DRIVER);
if (!dev->vbl_sigs)
goto err;
dev->_vblank_count = drm_alloc(sizeof(atomic_t) * num_crtcs,
DRM_MEM_DRIVER);
if (!dev->_vblank_count)
goto err;
dev->vblank_refcount = drm_alloc(sizeof(atomic_t) * num_crtcs,
DRM_MEM_DRIVER);
if (!dev->vblank_refcount)
goto err;
dev->vblank_enabled = drm_calloc(num_crtcs, sizeof(int),
DRM_MEM_DRIVER);
if (!dev->vblank_enabled)
goto err;
dev->last_vblank = drm_calloc(num_crtcs, sizeof(u32), DRM_MEM_DRIVER);
if (!dev->last_vblank)
goto err;
dev->vblank_premodeset = drm_calloc(num_crtcs, sizeof(u32),
DRM_MEM_DRIVER);
if (!dev->vblank_premodeset)
goto err;
dev->vblank_offset = drm_calloc(num_crtcs, sizeof(u32), DRM_MEM_DRIVER);
if (!dev->vblank_offset)
goto err;
/* Zero per-crtc vblank stuff */
for (i = 0; i < num_crtcs; i++) {
init_waitqueue_head(&dev->vbl_queue[i]);
INIT_LIST_HEAD(&dev->vbl_sigs[i]);
atomic_set(&dev->_vblank_count[i], 0);
atomic_set(&dev->vblank_refcount[i], 0);
}
return 0;
err:
drm_vblank_cleanup(dev);
return ret;
}
EXPORT_SYMBOL(drm_vblank_init);
/**
* Install IRQ handler.
*
......@@ -109,17 +220,6 @@ static int drm_irq_install(struct drm_device * dev)
DRM_DEBUG("irq=%d\n", dev->irq);
if (drm_core_check_feature(dev, DRIVER_IRQ_VBL)) {
init_waitqueue_head(&dev->vbl_queue);
spin_lock_init(&dev->vbl_lock);
INIT_LIST_HEAD(&dev->vbl_sigs);
INIT_LIST_HEAD(&dev->vbl_sigs2);
dev->vbl_pending = 0;
}
/* Before installing handler */
dev->driver->irq_preinstall(dev);
......@@ -137,9 +237,14 @@ static int drm_irq_install(struct drm_device * dev)
}
/* After installing handler */
dev->driver->irq_postinstall(dev);
ret = dev->driver->irq_postinstall(dev);
if (ret < 0) {
mutex_lock(&dev->struct_mutex);
dev->irq_enabled = 0;
mutex_unlock(&dev->struct_mutex);
}
return 0;
return ret;
}
/**
......@@ -170,6 +275,8 @@ int drm_irq_uninstall(struct drm_device * dev)
free_irq(dev->irq, dev);
drm_vblank_cleanup(dev);
dev->locked_tasklet_func = NULL;
return 0;
......@@ -213,6 +320,148 @@ int drm_control(struct drm_device *dev, void *data,
}
}
/**
* drm_vblank_count - retrieve "cooked" vblank counter value
* @dev: DRM device
* @crtc: which counter to retrieve
*
* Fetches the "cooked" vblank count value that represents the number of
* vblank events since the system was booted, including lost events due to
* modesetting activity.
*/
u32 drm_vblank_count(struct drm_device *dev, int crtc)
{
return atomic_read(&dev->_vblank_count[crtc]) +
dev->vblank_offset[crtc];
}
EXPORT_SYMBOL(drm_vblank_count);
/**
* drm_update_vblank_count - update the master vblank counter
* @dev: DRM device
* @crtc: counter to update
*
* Call back into the driver to update the appropriate vblank counter
* (specified by @crtc). Deal with wraparound, if it occurred, and
* update the last read value so we can deal with wraparound on the next
* call if necessary.
*/
void drm_update_vblank_count(struct drm_device *dev, int crtc)
{
unsigned long irqflags;
u32 cur_vblank, diff;
/*
* Interrupts were disabled prior to this call, so deal with counter
* wrap if needed.
* NOTE! It's possible we lost a full dev->max_vblank_count events
* here if the register is small or we had vblank interrupts off for
* a long time.
*/
cur_vblank = dev->driver->get_vblank_counter(dev, crtc);
spin_lock_irqsave(&dev->vbl_lock, irqflags);
if (cur_vblank < dev->last_vblank[crtc]) {
diff = dev->max_vblank_count -
dev->last_vblank[crtc];
diff += cur_vblank;
} else {
diff = cur_vblank - dev->last_vblank[crtc];
}
dev->last_vblank[crtc] = cur_vblank;
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
atomic_add(diff, &dev->_vblank_count[crtc]);
}
EXPORT_SYMBOL(drm_update_vblank_count);
/**
* drm_vblank_get - get a reference count on vblank events
* @dev: DRM device
* @crtc: which CRTC to own
*
* Acquire a reference count on vblank events to avoid having them disabled
* while in use. Note callers will probably want to update the master counter
* using drm_update_vblank_count() above before calling this routine so that
* wakeups occur on the right vblank event.
*
* RETURNS
* Zero on success, nonzero on failure.
*/
int drm_vblank_get(struct drm_device *dev, int crtc)
{
unsigned long irqflags;
int ret = 0;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
/* Going from 0->1 means we have to enable interrupts again */
if (atomic_add_return(1, &dev->vblank_refcount[crtc]) == 1 &&
!dev->vblank_enabled[crtc]) {
ret = dev->driver->enable_vblank(dev, crtc);
if (ret)
atomic_dec(&dev->vblank_refcount[crtc]);
else
dev->vblank_enabled[crtc] = 1;
}
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
return ret;
}
EXPORT_SYMBOL(drm_vblank_get);
/**
* drm_vblank_put - give up ownership of vblank events
* @dev: DRM device
* @crtc: which counter to give up
*
* Release ownership of a given vblank counter, turning off interrupts
* if possible.
*/
void drm_vblank_put(struct drm_device *dev, int crtc)
{
/* Last user schedules interrupt disable */
if (atomic_dec_and_test(&dev->vblank_refcount[crtc]))
mod_timer(&dev->vblank_disable_timer, jiffies + 5*DRM_HZ);
}
EXPORT_SYMBOL(drm_vblank_put);
/**
* drm_modeset_ctl - handle vblank event counter changes across mode switch
* @DRM_IOCTL_ARGS: standard ioctl arguments
*
* Applications should call the %_DRM_PRE_MODESET and %_DRM_POST_MODESET
* ioctls around modesetting so that any lost vblank events are accounted for.
*/
int drm_modeset_ctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_modeset_ctl *modeset = data;
int crtc, ret = 0;
u32 new;
crtc = modeset->arg;
if (crtc >= dev->num_crtcs) {
ret = -EINVAL;
goto out;
}
switch (modeset->cmd) {
case _DRM_PRE_MODESET:
dev->vblank_premodeset[crtc] =
dev->driver->get_vblank_counter(dev, crtc);
break;
case _DRM_POST_MODESET:
new = dev->driver->get_vblank_counter(dev, crtc);
dev->vblank_offset[crtc] = dev->vblank_premodeset[crtc] - new;
break;
default:
ret = -EINVAL;
break;
}
out:
return ret;
}
/**
* Wait for VBLANK.
*
......@@ -232,12 +481,13 @@ int drm_control(struct drm_device *dev, void *data,
*
* If a signal is not requested, then calls vblank_wait().
*/
int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_priv)
int drm_wait_vblank(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
union drm_wait_vblank *vblwait = data;
struct timeval now;
int ret = 0;
unsigned int flags, seq;
unsigned int flags, seq, crtc;
if ((!dev->irq) || (!dev->irq_enabled))
return -EINVAL;
......@@ -251,13 +501,13 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
}
flags = vblwait->request.type & _DRM_VBLANK_FLAGS_MASK;
crtc = flags & _DRM_VBLANK_SECONDARY ? 1 : 0;
if (!drm_core_check_feature(dev, (flags & _DRM_VBLANK_SECONDARY) ?
DRIVER_IRQ_VBL2 : DRIVER_IRQ_VBL))
if (crtc >= dev->num_crtcs)
return -EINVAL;
seq = atomic_read((flags & _DRM_VBLANK_SECONDARY) ? &dev->vbl_received2
: &dev->vbl_received);
drm_update_vblank_count(dev, crtc);
seq = drm_vblank_count(dev, crtc);
switch (vblwait->request.type & _DRM_VBLANK_TYPES_MASK) {
case _DRM_VBLANK_RELATIVE:
......@@ -276,8 +526,7 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
if (flags & _DRM_VBLANK_SIGNAL) {
unsigned long irqflags;
struct list_head *vbl_sigs = (flags & _DRM_VBLANK_SECONDARY)
? &dev->vbl_sigs2 : &dev->vbl_sigs;
struct list_head *vbl_sigs = &dev->vbl_sigs[crtc];
struct drm_vbl_sig *vbl_sig;
spin_lock_irqsave(&dev->vbl_lock, irqflags);
......@@ -298,22 +547,26 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
}
}
if (dev->vbl_pending >= 100) {
if (atomic_read(&dev->vbl_signal_pending) >= 100) {
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
return -EBUSY;
}
dev->vbl_pending++;
spin_unlock_irqrestore(&dev->vbl_lock, irqflags);
if (!
(vbl_sig =
drm_alloc(sizeof(struct drm_vbl_sig), DRM_MEM_DRIVER))) {
vbl_sig = drm_calloc(1, sizeof(struct drm_vbl_sig),
DRM_MEM_DRIVER);
if (!vbl_sig)
return -ENOMEM;
ret = drm_vblank_get(dev, crtc);
if (ret) {
drm_free(vbl_sig, sizeof(struct drm_vbl_sig),
DRM_MEM_DRIVER);
return ret;
}
memset((void *)vbl_sig, 0, sizeof(*vbl_sig));
atomic_inc(&dev->vbl_signal_pending);
vbl_sig->sequence = vblwait->request.sequence;
vbl_sig->info.si_signo = vblwait->request.signal;
......@@ -327,17 +580,20 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
vblwait->reply.sequence = seq;
} else {
if (flags & _DRM_VBLANK_SECONDARY) {
if (dev->driver->vblank_wait2)
ret = dev->driver->vblank_wait2(dev, &vblwait->request.sequence);
} else if (dev->driver->vblank_wait)
ret =
dev->driver->vblank_wait(dev,
&vblwait->request.sequence);
unsigned long cur_vblank;
ret = drm_vblank_get(dev, crtc);
if (ret)
return ret;
DRM_WAIT_ON(ret, dev->vbl_queue[crtc], 3 * DRM_HZ,
(((cur_vblank = drm_vblank_count(dev, crtc))
- vblwait->request.sequence) <= (1 << 23)));
drm_vblank_put(dev, crtc);
do_gettimeofday(&now);
vblwait->reply.tval_sec = now.tv_sec;
vblwait->reply.tval_usec = now.tv_usec;
vblwait->reply.sequence = cur_vblank;
}
done:
......@@ -348,44 +604,57 @@ int drm_wait_vblank(struct drm_device *dev, void *data, struct drm_file *file_pr
* Send the VBLANK signals.
*
* \param dev DRM device.
* \param crtc CRTC where the vblank event occurred
*
* Sends a signal for each task in drm_device::vbl_sigs and empties the list.
*
* If a signal is not requested, then calls vblank_wait().
*/
void drm_vbl_send_signals(struct drm_device * dev)
static void drm_vbl_send_signals(struct drm_device * dev, int crtc)
{
struct drm_vbl_sig *vbl_sig, *tmp;
struct list_head *vbl_sigs;
unsigned int vbl_seq;
unsigned long flags;
int i;
spin_lock_irqsave(&dev->vbl_lock, flags);
for (i = 0; i < 2; i++) {
struct drm_vbl_sig *vbl_sig, *tmp;
struct list_head *vbl_sigs = i ? &dev->vbl_sigs2 : &dev->vbl_sigs;
unsigned int vbl_seq = atomic_read(i ? &dev->vbl_received2 :
&dev->vbl_received);
vbl_sigs = &dev->vbl_sigs[crtc];
vbl_seq = drm_vblank_count(dev, crtc);
list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) {
vbl_sig->info.si_code = vbl_seq;
send_sig_info(vbl_sig->info.si_signo,
&vbl_sig->info, vbl_sig->task);
list_for_each_entry_safe(vbl_sig, tmp, vbl_sigs, head) {
if ((vbl_seq - vbl_sig->sequence) <= (1 << 23)) {
vbl_sig->info.si_code = vbl_seq;
send_sig_info(vbl_sig->info.si_signo,
&vbl_sig->info, vbl_sig->task);
list_del(&vbl_sig->head);
list_del(&vbl_sig->head);
drm_free(vbl_sig, sizeof(*vbl_sig),
DRM_MEM_DRIVER);
dev->vbl_pending--;
}
}
drm_free(vbl_sig, sizeof(*vbl_sig),
DRM_MEM_DRIVER);
atomic_dec(&dev->vbl_signal_pending);
drm_vblank_put(dev, crtc);
}
}
spin_unlock_irqrestore(&dev->vbl_lock, flags);
}
EXPORT_SYMBOL(drm_vbl_send_signals);
/**
* drm_handle_vblank - handle a vblank event
* @dev: DRM device
* @crtc: where this event occurred
*
* Drivers should call this routine in their vblank interrupt handlers to
* update the vblank counter and send any signals that may be pending.
*/
void drm_handle_vblank(struct drm_device *dev, int crtc)
{
drm_update_vblank_count(dev, crtc);
DRM_WAKEUP(&dev->vbl_queue[crtc]);
drm_vbl_send_signals(dev, crtc);
}
EXPORT_SYMBOL(drm_handle_vblank);
/**
* Tasklet wrapper function.
......
......@@ -415,10 +415,13 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
RING_LOCALS;
dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
if (++dev_priv->counter > BREADCRUMB_MASK) {
dev_priv->counter = 1;
DRM_DEBUG("Breadcrumb counter wrapped around\n");
}
if (dev_priv->counter > 0x7FFFFFFFUL)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
if (dev_priv->sarea_priv)
dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
BEGIN_LP_RING(4);
OUT_RING(CMD_STORE_DWORD_IDX);
......@@ -428,6 +431,26 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
ADVANCE_LP_RING();
}
int i915_emit_mi_flush(struct drm_device *dev, uint32_t flush)
{
drm_i915_private_t *dev_priv = dev->dev_private;
uint32_t flush_cmd = CMD_MI_FLUSH;
RING_LOCALS;
flush_cmd |= flush;
i915_kernel_lost_context(dev);
BEGIN_LP_RING(4);
OUT_RING(flush_cmd);
OUT_RING(0);
OUT_RING(0);
OUT_RING(0);
ADVANCE_LP_RING();
return 0;
}
static int i915_dispatch_cmdbuffer(struct drm_device * dev,
drm_i915_cmdbuffer_t * cmd)
{
......@@ -511,52 +534,74 @@ static int i915_dispatch_batchbuffer(struct drm_device * dev,
return 0;
}
static int i915_dispatch_flip(struct drm_device * dev)
static void i915_do_dispatch_flip(struct drm_device * dev, int plane, int sync)
{
drm_i915_private_t *dev_priv = dev->dev_private;
u32 num_pages, current_page, next_page, dspbase;
int shift = 2 * plane, x, y;
RING_LOCALS;
DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
__FUNCTION__,
dev_priv->current_page,
dev_priv->sarea_priv->pf_current_page);
/* Calculate display base offset */
num_pages = dev_priv->sarea_priv->third_handle ? 3 : 2;
current_page = (dev_priv->sarea_priv->pf_current_page >> shift) & 0x3;
next_page = (current_page + 1) % num_pages;
i915_kernel_lost_context(dev);
BEGIN_LP_RING(2);
OUT_RING(INST_PARSER_CLIENT | INST_OP_FLUSH | INST_FLUSH_MAP_CACHE);
OUT_RING(0);
ADVANCE_LP_RING();
switch (next_page) {
default:
case 0:
dspbase = dev_priv->sarea_priv->front_offset;
break;
case 1:
dspbase = dev_priv->sarea_priv->back_offset;
break;
case 2:
dspbase = dev_priv->sarea_priv->third_offset;
break;
}
BEGIN_LP_RING(6);
OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
OUT_RING(0);
if (dev_priv->current_page == 0) {
OUT_RING(dev_priv->back_offset);
dev_priv->current_page = 1;
if (plane == 0) {
x = dev_priv->sarea_priv->planeA_x;
y = dev_priv->sarea_priv->planeA_y;
} else {
OUT_RING(dev_priv->front_offset);
dev_priv->current_page = 0;
x = dev_priv->sarea_priv->planeB_x;
y = dev_priv->sarea_priv->planeB_y;
}
OUT_RING(0);
ADVANCE_LP_RING();
BEGIN_LP_RING(2);
OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
OUT_RING(0);
ADVANCE_LP_RING();
dspbase += (y * dev_priv->sarea_priv->pitch + x) * dev_priv->cpp;
dev_priv->sarea_priv->last_enqueue = dev_priv->counter++;
DRM_DEBUG("plane=%d current_page=%d dspbase=0x%x\n", plane, current_page,
dspbase);
BEGIN_LP_RING(4);
OUT_RING(CMD_STORE_DWORD_IDX);
OUT_RING(20);
OUT_RING(dev_priv->counter);
OUT_RING(0);
OUT_RING(sync ? 0 :
(MI_WAIT_FOR_EVENT | (plane ? MI_WAIT_FOR_PLANE_B_FLIP :
MI_WAIT_FOR_PLANE_A_FLIP)));
OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | (sync ? 0 : ASYNC_FLIP) |
(plane ? DISPLAY_PLANE_B : DISPLAY_PLANE_A));
OUT_RING(dev_priv->sarea_priv->pitch * dev_priv->cpp);
OUT_RING(dspbase);
ADVANCE_LP_RING();
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
return 0;
dev_priv->sarea_priv->pf_current_page &= ~(0x3 << shift);
dev_priv->sarea_priv->pf_current_page |= next_page << shift;
}
void i915_dispatch_flip(struct drm_device * dev, int planes, int sync)
{
drm_i915_private_t *dev_priv = dev->dev_private;
int i;
DRM_DEBUG("planes=0x%x pfCurrentPage=%d\n",
planes, dev_priv->sarea_priv->pf_current_page);
i915_emit_mi_flush(dev, MI_READ_FLUSH | MI_EXE_FLUSH);
for (i = 0; i < 2; i++)
if (planes & (1 << i))
i915_do_dispatch_flip(dev, i, sync);
i915_emit_breadcrumb(dev);
}
static int i915_quiescent(struct drm_device * dev)
......@@ -579,7 +624,6 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
dev_priv->sarea_priv;
drm_i915_batchbuffer_t *batch = data;
......@@ -602,7 +646,7 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
ret = i915_dispatch_batchbuffer(dev, batch);
sarea_priv->last_dispatch = (int)hw_status[5];
sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
return ret;
}
......@@ -610,7 +654,6 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
u32 *hw_status = dev_priv->hw_status_page;
drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
dev_priv->sarea_priv;
drm_i915_cmdbuffer_t *cmdbuf = data;
......@@ -635,18 +678,51 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
return ret;
}
sarea_priv->last_dispatch = (int)hw_status[5];
sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
return 0;
}
static int i915_do_cleanup_pageflip(struct drm_device * dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
int i, planes, num_pages = dev_priv->sarea_priv->third_handle ? 3 : 2;
DRM_DEBUG("\n");
for (i = 0, planes = 0; i < 2; i++)
if (dev_priv->sarea_priv->pf_current_page & (0x3 << (2 * i))) {
dev_priv->sarea_priv->pf_current_page =
(dev_priv->sarea_priv->pf_current_page &
~(0x3 << (2 * i))) | ((num_pages - 1) << (2 * i));
planes |= 1 << i;
}
if (planes)
i915_dispatch_flip(dev, planes, 0);
return 0;
}
static int i915_flip_bufs(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
DRM_DEBUG("%s\n", __FUNCTION__);
drm_i915_flip_t *param = data;
DRM_DEBUG("\n");
LOCK_TEST_WITH_RETURN(dev, file_priv);
return i915_dispatch_flip(dev);
/* This is really planes */
if (param->pipes & ~0x3) {
DRM_ERROR("Invalid planes 0x%x, only <= 0x3 is valid\n",
param->pipes);
return -EINVAL;
}
i915_dispatch_flip(dev, param->pipes, 0);
return 0;
}
static int i915_getparam(struct drm_device *dev, void *data,
......@@ -807,6 +883,8 @@ void i915_driver_lastclose(struct drm_device * dev)
if (!dev_priv)
return;
if (drm_getsarea(dev) && dev_priv->sarea_priv)
i915_do_cleanup_pageflip(dev);
if (dev_priv->agp_heap)
i915_mem_takedown(&(dev_priv->agp_heap));
......
......@@ -105,14 +105,29 @@ typedef struct _drm_i915_sarea {
unsigned int rotated_tiled;
unsigned int rotated2_tiled;
int pipeA_x;
int pipeA_y;
int pipeA_w;
int pipeA_h;
int pipeB_x;
int pipeB_y;
int pipeB_w;
int pipeB_h;
int planeA_x;
int planeA_y;
int planeA_w;
int planeA_h;
int planeB_x;
int planeB_y;
int planeB_w;
int planeB_h;
/* Triple buffering */
drm_handle_t third_handle;
int third_offset;
int third_size;
unsigned int third_tiled;
/* buffer object handles for the static buffers. May change
* over the lifetime of the client, though it doesn't in our current
* implementation.
*/
unsigned int front_bo_handle;
unsigned int back_bo_handle;
unsigned int third_bo_handle;
unsigned int depth_bo_handle;
} drm_i915_sarea_t;
/* Flags for perf_boxes
......@@ -146,7 +161,7 @@ typedef struct _drm_i915_sarea {
#define DRM_IOCTL_I915_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
#define DRM_IOCTL_I915_FLUSH DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
#define DRM_IOCTL_I915_FLIP DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
#define DRM_IOCTL_I915_FLIP DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FLIP, drm_i915_flip_t)
#define DRM_IOCTL_I915_BATCHBUFFER DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
#define DRM_IOCTL_I915_IRQ_EMIT DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
#define DRM_IOCTL_I915_IRQ_WAIT DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
......@@ -161,6 +176,18 @@ typedef struct _drm_i915_sarea {
#define DRM_IOCTL_I915_GET_VBLANK_PIPE DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
#define DRM_IOCTL_I915_VBLANK_SWAP DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
/* Asynchronous page flipping:
*/
typedef struct drm_i915_flip {
/*
* This is really talking about planes, and we could rename it
* except for the fact that some of the duplicated i915_drm.h files
* out there check for HAVE_I915_FLIP and so might pick up this
* version.
*/
int pipes;
} drm_i915_flip_t;
/* Allow drivers to submit batchbuffers directly to hardware, relying
* on the security mechanisms provided by hardware.
*/
......
......@@ -533,8 +533,7 @@ static struct drm_driver driver = {
*/
.driver_features =
DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL |
DRIVER_IRQ_VBL2,
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.load = i915_driver_load,
.unload = i915_driver_unload,
.lastclose = i915_driver_lastclose,
......@@ -542,8 +541,9 @@ static struct drm_driver driver = {
.suspend = i915_suspend,
.resume = i915_resume,
.device_is_agp = i915_driver_device_is_agp,
.vblank_wait = i915_driver_vblank_wait,
.vblank_wait2 = i915_driver_vblank_wait2,
.get_vblank_counter = i915_get_vblank_counter,
.enable_vblank = i915_enable_vblank,
.disable_vblank = i915_disable_vblank,
.irq_preinstall = i915_driver_irq_preinstall,
.irq_postinstall = i915_driver_irq_postinstall,
.irq_uninstall = i915_driver_irq_uninstall,
......
......@@ -76,8 +76,9 @@ struct mem_block {
typedef struct _drm_i915_vbl_swap {
struct list_head head;
drm_drawable_t drw_id;
unsigned int pipe;
unsigned int plane;
unsigned int sequence;
int flip;
} drm_i915_vbl_swap_t;
typedef struct drm_i915_private {
......@@ -90,7 +91,7 @@ typedef struct drm_i915_private {
drm_dma_handle_t *status_page_dmah;
void *hw_status_page;
dma_addr_t dma_status_page;
unsigned long counter;
uint32_t counter;
unsigned int status_gfx_addr;
drm_local_map_t hws_map;
......@@ -103,13 +104,18 @@ typedef struct drm_i915_private {
wait_queue_head_t irq_queue;
atomic_t irq_received;
atomic_t irq_emitted;
atomic_t irq_emited;
int tex_lru_log_granularity;
int allow_batchbuffer;
struct mem_block *agp_heap;
unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
int vblank_pipe;
spinlock_t user_irq_lock;
int user_irq_refcount;
int fence_irq_on;
uint32_t irq_enable_reg;
int irq_enabled;
spinlock_t swaps_lock;
drm_i915_vbl_swap_t vbl_swaps;
......@@ -216,7 +222,7 @@ extern void i915_driver_preclose(struct drm_device *dev,
extern int i915_driver_device_is_agp(struct drm_device * dev);
extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
extern void i915_dispatch_flip(struct drm_device * dev, int pipes, int sync);
/* i915_irq.c */
extern int i915_irq_emit(struct drm_device *dev, void *data,
struct drm_file *file_priv);
......@@ -227,7 +233,7 @@ extern int i915_driver_vblank_wait(struct drm_device *dev, unsigned int *sequenc
extern int i915_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence);
extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
extern void i915_driver_irq_preinstall(struct drm_device * dev);
extern void i915_driver_irq_postinstall(struct drm_device * dev);
extern int i915_driver_irq_postinstall(struct drm_device * dev);
extern void i915_driver_irq_uninstall(struct drm_device * dev);
extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
struct drm_file *file_priv);
......@@ -235,6 +241,9 @@ extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_vblank_swap(struct drm_device *dev, void *data,
struct drm_file *file_priv);
extern int i915_enable_vblank(struct drm_device *dev, int crtc);
extern void i915_disable_vblank(struct drm_device *dev, int crtc);
extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
/* i915_mem.c */
extern int i915_mem_alloc(struct drm_device *dev, void *data,
......@@ -379,21 +388,91 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
/* Interrupt bits:
*/
#define USER_INT_FLAG (1<<1)
#define VSYNC_PIPEB_FLAG (1<<5)
#define VSYNC_PIPEA_FLAG (1<<7)
#define HWB_OOM_FLAG (1<<13) /* binner out of memory */
#define I915_PIPE_CONTROL_NOTIFY_INTERRUPT (1<<18)
#define I915_DISPLAY_PORT_INTERRUPT (1<<17)
#define I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT (1<<15)
#define I915_GMCH_THERMAL_SENSOR_EVENT_INTERRUPT (1<<14)
#define I915_HWB_OOM_INTERRUPT (1<<13) /* binner out of memory */
#define I915_SYNC_STATUS_INTERRUPT (1<<12)
#define I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT (1<<11)
#define I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT (1<<10)
#define I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT (1<<9)
#define I915_DISPLAY_PLANE_C_FLIP_PENDING_INTERRUPT (1<<8)
#define I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT (1<<7)
#define I915_DISPLAY_PIPE_A_EVENT_INTERRUPT (1<<6)
#define I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT (1<<5)
#define I915_DISPLAY_PIPE_B_EVENT_INTERRUPT (1<<4)
#define I915_DEBUG_INTERRUPT (1<<2)
#define I915_USER_INTERRUPT (1<<1)
#define I915REG_HWSTAM 0x02098
#define I915REG_INT_IDENTITY_R 0x020a4
#define I915REG_INT_MASK_R 0x020a8
#define I915REG_INT_ENABLE_R 0x020a0
#define I915REG_INSTPM 0x020c0
#define PIPEADSL 0x70000
#define PIPEBDSL 0x71000
#define I915REG_PIPEASTAT 0x70024
#define I915REG_PIPEBSTAT 0x71024
/*
* The two pipe frame counter registers are not synchronized, so
* reading a stable value is somewhat tricky. The following code
* should work:
*
* do {
* high1 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
* PIPE_FRAME_HIGH_SHIFT;
* low1 = ((INREG(PIPEAFRAMEPIXEL) & PIPE_FRAME_LOW_MASK) >>
* PIPE_FRAME_LOW_SHIFT);
* high2 = ((INREG(PIPEAFRAMEHIGH) & PIPE_FRAME_HIGH_MASK) >>
* PIPE_FRAME_HIGH_SHIFT);
* } while (high1 != high2);
* frame = (high1 << 8) | low1;
*/
#define PIPEAFRAMEHIGH 0x70040
#define PIPEBFRAMEHIGH 0x71040
#define PIPE_FRAME_HIGH_MASK 0x0000ffff
#define PIPE_FRAME_HIGH_SHIFT 0
#define PIPEAFRAMEPIXEL 0x70044
#define PIPEBFRAMEPIXEL 0x71044
#define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17)
#define I915_VBLANK_CLEAR (1UL<<1)
#define PIPE_FRAME_LOW_MASK 0xff000000
#define PIPE_FRAME_LOW_SHIFT 24
/*
* Pixel within the current frame is counted in the PIPEAFRAMEPIXEL register
* and is 24 bits wide.
*/
#define PIPE_PIXEL_MASK 0x00ffffff
#define PIPE_PIXEL_SHIFT 0
#define I915_FIFO_UNDERRUN_STATUS (1UL<<31)
#define I915_CRC_ERROR_ENABLE (1UL<<29)
#define I915_CRC_DONE_ENABLE (1UL<<28)
#define I915_GMBUS_EVENT_ENABLE (1UL<<27)
#define I915_VSYNC_INTERRUPT_ENABLE (1UL<<25)
#define I915_DISPLAY_LINE_COMPARE_ENABLE (1UL<<24)
#define I915_DPST_EVENT_ENABLE (1UL<<23)
#define I915_LEGACY_BLC_EVENT_ENABLE (1UL<<22)
#define I915_ODD_FIELD_INTERRUPT_ENABLE (1UL<<21)
#define I915_EVEN_FIELD_INTERRUPT_ENABLE (1UL<<20)
#define I915_START_VBLANK_INTERRUPT_ENABLE (1UL<<18) /* 965 or later */
#define I915_VBLANK_INTERRUPT_ENABLE (1UL<<17)
#define I915_OVERLAY_UPDATED_ENABLE (1UL<<16)
#define I915_CRC_ERROR_INTERRUPT_STATUS (1UL<<13)
#define I915_CRC_DONE_INTERRUPT_STATUS (1UL<<12)
#define I915_GMBUS_INTERRUPT_STATUS (1UL<<11)
#define I915_VSYNC_INTERRUPT_STATUS (1UL<<9)
#define I915_DISPLAY_LINE_COMPARE_STATUS (1UL<<8)
#define I915_DPST_EVENT_STATUS (1UL<<7)
#define I915_LEGACY_BLC_EVENT_STATUS (1UL<<6)
#define I915_ODD_FIELD_INTERRUPT_STATUS (1UL<<5)
#define I915_EVEN_FIELD_INTERRUPT_STATUS (1UL<<4)
#define I915_START_VBLANK_INTERRUPT_STATUS (1UL<<2) /* 965 or later */
#define I915_VBLANK_INTERRUPT_STATUS (1UL<<1)
#define I915_OVERLAY_UPDATED_STATUS (1UL<<0)
#define SRX_INDEX 0x3c4
#define SRX_DATA 0x3c5
......
此差异已折叠。
......@@ -45,15 +45,16 @@ static struct pci_device_id pciidlist[] = {
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
DRIVER_IRQ_VBL,
DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof(drm_mga_buf_priv_t),
.load = mga_driver_load,
.unload = mga_driver_unload,
.lastclose = mga_driver_lastclose,
.dma_quiescent = mga_driver_dma_quiescent,
.device_is_agp = mga_driver_device_is_agp,
.vblank_wait = mga_driver_vblank_wait,
.get_vblank_counter = mga_get_vblank_counter,
.enable_vblank = mga_enable_vblank,
.disable_vblank = mga_disable_vblank,
.irq_preinstall = mga_driver_irq_preinstall,
.irq_postinstall = mga_driver_irq_postinstall,
.irq_uninstall = mga_driver_irq_uninstall,
......
......@@ -120,6 +120,7 @@ typedef struct drm_mga_private {
u32 clear_cmd;
u32 maccess;
atomic_t vbl_received; /**< Number of vblanks received. */
wait_queue_head_t fence_queue;
atomic_t last_fence_retired;
u32 next_fence_to_post;
......@@ -181,11 +182,14 @@ extern int mga_warp_install_microcode(drm_mga_private_t * dev_priv);
extern int mga_warp_init(drm_mga_private_t * dev_priv);
/* mga_irq.c */
extern int mga_enable_vblank(struct drm_device *dev, int crtc);
extern void mga_disable_vblank(struct drm_device *dev, int crtc);
extern u32 mga_get_vblank_counter(struct drm_device *dev, int crtc);
extern int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence);
extern int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence);
extern irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS);
extern void mga_driver_irq_preinstall(struct drm_device * dev);
extern void mga_driver_irq_postinstall(struct drm_device * dev);
extern int mga_driver_irq_postinstall(struct drm_device * dev);
extern void mga_driver_irq_uninstall(struct drm_device * dev);
extern long mga_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg);
......
......@@ -35,6 +35,20 @@
#include "mga_drm.h"
#include "mga_drv.h"
u32 mga_get_vblank_counter(struct drm_device *dev, int crtc)
{
const drm_mga_private_t *const dev_priv =
(drm_mga_private_t *) dev->dev_private;
if (crtc != 0) {
return 0;
}
return atomic_read(&dev_priv->vbl_received);
}
irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
{
struct drm_device *dev = (struct drm_device *) arg;
......@@ -47,9 +61,8 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
/* VBLANK interrupt */
if (status & MGA_VLINEPEN) {
MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR);
atomic_inc(&dev->vbl_received);
DRM_WAKEUP(&dev->vbl_queue);
drm_vbl_send_signals(dev);
atomic_inc(&dev_priv->vbl_received);
drm_handle_vblank(dev, 0);
handled = 1;
}
......@@ -78,22 +91,34 @@ irqreturn_t mga_driver_irq_handler(DRM_IRQ_ARGS)
return IRQ_NONE;
}
int mga_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence)
int mga_enable_vblank(struct drm_device *dev, int crtc)
{
unsigned int cur_vblank;
int ret = 0;
drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
(((cur_vblank = atomic_read(&dev->vbl_received))
- *sequence) <= (1 << 23)));
if (crtc != 0) {
DRM_ERROR("tried to enable vblank on non-existent crtc %d\n",
crtc);
return 0;
}
*sequence = cur_vblank;
MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN);
return 0;
}
return ret;
void mga_disable_vblank(struct drm_device *dev, int crtc)
{
if (crtc != 0) {
DRM_ERROR("tried to disable vblank on non-existent crtc %d\n",
crtc);
}
/* Do *NOT* disable the vertical refresh interrupt. MGA doesn't have
* a nice hardware counter that tracks the number of refreshes when
* the interrupt is disabled, and the kernel doesn't know the refresh
* rate to calculate an estimate.
*/
/* MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN); */
}
int mga_driver_fence_wait(struct drm_device * dev, unsigned int *sequence)
......@@ -125,14 +150,22 @@ void mga_driver_irq_preinstall(struct drm_device * dev)
MGA_WRITE(MGA_ICLEAR, ~0);
}
void mga_driver_irq_postinstall(struct drm_device * dev)
int mga_driver_irq_postinstall(struct drm_device * dev)
{
drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private;
int ret;
ret = drm_vblank_init(dev, 1);
if (ret)
return ret;
DRM_INIT_WAITQUEUE(&dev_priv->fence_queue);
/* Turn on vertical blank interrupt and soft trap interrupt. */
MGA_WRITE(MGA_IEN, MGA_VLINEIEN | MGA_SOFTRAPEN);
/* Turn on soft trap interrupt. Vertical blank interrupts are enabled
* in mga_enable_vblank.
*/
MGA_WRITE(MGA_IEN, MGA_SOFTRAPEN);
return 0;
}
void mga_driver_irq_uninstall(struct drm_device * dev)
......
......@@ -43,12 +43,13 @@ static struct pci_device_id pciidlist[] = {
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
DRIVER_IRQ_VBL,
DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof(drm_r128_buf_priv_t),
.preclose = r128_driver_preclose,
.lastclose = r128_driver_lastclose,
.vblank_wait = r128_driver_vblank_wait,
.get_vblank_counter = r128_get_vblank_counter,
.enable_vblank = r128_enable_vblank,
.disable_vblank = r128_disable_vblank,
.irq_preinstall = r128_driver_irq_preinstall,
.irq_postinstall = r128_driver_irq_postinstall,
.irq_uninstall = r128_driver_irq_uninstall,
......
......@@ -97,6 +97,8 @@ typedef struct drm_r128_private {
u32 crtc_offset;
u32 crtc_offset_cntl;
atomic_t vbl_received;
u32 color_fmt;
unsigned int front_offset;
unsigned int front_pitch;
......@@ -149,11 +151,12 @@ extern int r128_wait_ring(drm_r128_private_t * dev_priv, int n);
extern int r128_do_cce_idle(drm_r128_private_t * dev_priv);
extern int r128_do_cleanup_cce(struct drm_device * dev);
extern int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence);
extern int r128_enable_vblank(struct drm_device *dev, int crtc);
extern void r128_disable_vblank(struct drm_device *dev, int crtc);
extern u32 r128_get_vblank_counter(struct drm_device *dev, int crtc);
extern irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS);
extern void r128_driver_irq_preinstall(struct drm_device * dev);
extern void r128_driver_irq_postinstall(struct drm_device * dev);
extern int r128_driver_irq_postinstall(struct drm_device * dev);
extern void r128_driver_irq_uninstall(struct drm_device * dev);
extern void r128_driver_lastclose(struct drm_device * dev);
extern void r128_driver_preclose(struct drm_device * dev,
......
......@@ -35,6 +35,16 @@
#include "r128_drm.h"
#include "r128_drv.h"
u32 r128_get_vblank_counter(struct drm_device *dev, int crtc)
{
const drm_r128_private_t *dev_priv = dev->dev_private;
if (crtc != 0)
return 0;
return atomic_read(&dev_priv->vbl_received);
}
irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
{
struct drm_device *dev = (struct drm_device *) arg;
......@@ -46,30 +56,38 @@ irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS)
/* VBLANK interrupt */
if (status & R128_CRTC_VBLANK_INT) {
R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
atomic_inc(&dev->vbl_received);
DRM_WAKEUP(&dev->vbl_queue);
drm_vbl_send_signals(dev);
atomic_inc(&dev_priv->vbl_received);
drm_handle_vblank(dev, 0);
return IRQ_HANDLED;
}
return IRQ_NONE;
}
int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence)
int r128_enable_vblank(struct drm_device *dev, int crtc)
{
unsigned int cur_vblank;
int ret = 0;
drm_r128_private_t *dev_priv = dev->dev_private;
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
(((cur_vblank = atomic_read(&dev->vbl_received))
- *sequence) <= (1 << 23)));
if (crtc != 0) {
DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
return -EINVAL;
}
*sequence = cur_vblank;
R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN);
return 0;
}
void r128_disable_vblank(struct drm_device *dev, int crtc)
{
if (crtc != 0)
DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
return ret;
/*
* FIXME: implement proper interrupt disable by using the vblank
* counter register (if available)
*
* R128_WRITE(R128_GEN_INT_CNTL,
* R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN);
*/
}
void r128_driver_irq_preinstall(struct drm_device * dev)
......@@ -82,12 +100,9 @@ void r128_driver_irq_preinstall(struct drm_device * dev)
R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK);
}
void r128_driver_irq_postinstall(struct drm_device * dev)
int r128_driver_irq_postinstall(struct drm_device * dev)
{
drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private;
/* Turn on VBL interrupt */
R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN);
return drm_vblank_init(dev, 1);
}
void r128_driver_irq_uninstall(struct drm_device * dev)
......
......@@ -59,8 +59,7 @@ static struct pci_device_id pciidlist[] = {
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED |
DRIVER_IRQ_VBL | DRIVER_IRQ_VBL2,
DRIVER_HAVE_IRQ | DRIVER_HAVE_DMA | DRIVER_IRQ_SHARED,
.dev_priv_size = sizeof(drm_radeon_buf_priv_t),
.load = radeon_driver_load,
.firstopen = radeon_driver_firstopen,
......@@ -69,8 +68,9 @@ static struct drm_driver driver = {
.postclose = radeon_driver_postclose,
.lastclose = radeon_driver_lastclose,
.unload = radeon_driver_unload,
.vblank_wait = radeon_driver_vblank_wait,
.vblank_wait2 = radeon_driver_vblank_wait2,
.get_vblank_counter = radeon_get_vblank_counter,
.enable_vblank = radeon_enable_vblank,
.disable_vblank = radeon_disable_vblank,
.dri_library_name = dri_library_name,
.irq_preinstall = radeon_driver_irq_preinstall,
.irq_postinstall = radeon_driver_irq_postinstall,
......
......@@ -304,6 +304,9 @@ typedef struct drm_radeon_private {
u32 scratch_ages[5];
unsigned int crtc_last_cnt;
unsigned int crtc2_last_cnt;
/* starting from here on, data is preserved accross an open */
uint32_t flags; /* see radeon_chip_flags */
unsigned long fb_aper_offset;
......@@ -374,13 +377,13 @@ extern int radeon_irq_emit(struct drm_device *dev, void *data, struct drm_file *
extern int radeon_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_priv);
extern void radeon_do_release(struct drm_device * dev);
extern int radeon_driver_vblank_wait(struct drm_device * dev,
unsigned int *sequence);
extern int radeon_driver_vblank_wait2(struct drm_device * dev,
unsigned int *sequence);
extern u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc);
extern int radeon_enable_vblank(struct drm_device *dev, int crtc);
extern void radeon_disable_vblank(struct drm_device *dev, int crtc);
extern void radeon_do_release(struct drm_device * dev);
extern irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS);
extern void radeon_driver_irq_preinstall(struct drm_device * dev);
extern void radeon_driver_irq_postinstall(struct drm_device * dev);
extern int radeon_driver_irq_postinstall(struct drm_device * dev);
extern void radeon_driver_irq_uninstall(struct drm_device * dev);
extern int radeon_vblank_crtc_get(struct drm_device *dev);
extern int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value);
......@@ -558,6 +561,12 @@ extern int r300_do_cp_cmdbuf(struct drm_device * dev,
? DRM_READ32( dev_priv->ring_rptr, RADEON_SCRATCHOFF(x) ) \
: RADEON_READ( RADEON_SCRATCH_REG0 + 4*(x) ) )
#define RADEON_CRTC_CRNT_FRAME 0x0214
#define RADEON_CRTC2_CRNT_FRAME 0x0314
#define RADEON_CRTC_STATUS 0x005c
#define RADEON_CRTC2_STATUS 0x03fc
#define RADEON_GEN_INT_CNTL 0x0040
# define RADEON_CRTC_VBLANK_MASK (1 << 0)
# define RADEON_CRTC2_VBLANK_MASK (1 << 9)
......
......@@ -35,12 +35,61 @@
#include "radeon_drm.h"
#include "radeon_drv.h"
static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv,
u32 mask)
static void radeon_irq_set_state(struct drm_device *dev, u32 mask, int state)
{
u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) & mask;
drm_radeon_private_t *dev_priv = dev->dev_private;
if (state)
dev_priv->irq_enable_reg |= mask;
else
dev_priv->irq_enable_reg &= ~mask;
RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
}
int radeon_enable_vblank(struct drm_device *dev, int crtc)
{
switch (crtc) {
case 0:
radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 1);
break;
case 1:
radeon_irq_set_state(dev, RADEON_CRTC2_VBLANK_MASK, 1);
break;
default:
DRM_ERROR("tried to enable vblank on non-existent crtc %d\n",
crtc);
return EINVAL;
}
return 0;
}
void radeon_disable_vblank(struct drm_device *dev, int crtc)
{
switch (crtc) {
case 0:
radeon_irq_set_state(dev, RADEON_CRTC_VBLANK_MASK, 0);
break;
case 1:
radeon_irq_set_state(dev, RADEON_CRTC2_VBLANK_MASK, 0);
break;
default:
DRM_ERROR("tried to enable vblank on non-existent crtc %d\n",
crtc);
break;
}
}
static __inline__ u32 radeon_acknowledge_irqs(drm_radeon_private_t * dev_priv)
{
u32 irqs = RADEON_READ(RADEON_GEN_INT_STATUS) &
(RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT |
RADEON_CRTC2_VBLANK_STAT);
if (irqs)
RADEON_WRITE(RADEON_GEN_INT_STATUS, irqs);
return irqs;
}
......@@ -72,39 +121,21 @@ irqreturn_t radeon_driver_irq_handler(DRM_IRQ_ARGS)
/* Only consider the bits we're interested in - others could be used
* outside the DRM
*/
stat = radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK |
RADEON_CRTC_VBLANK_STAT |
RADEON_CRTC2_VBLANK_STAT));
stat = radeon_acknowledge_irqs(dev_priv);
if (!stat)
return IRQ_NONE;
stat &= dev_priv->irq_enable_reg;
/* SW interrupt */
if (stat & RADEON_SW_INT_TEST) {
if (stat & RADEON_SW_INT_TEST)
DRM_WAKEUP(&dev_priv->swi_queue);
}
/* VBLANK interrupt */
if (stat & (RADEON_CRTC_VBLANK_STAT|RADEON_CRTC2_VBLANK_STAT)) {
int vblank_crtc = dev_priv->vblank_crtc;
if ((vblank_crtc &
(DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) ==
(DRM_RADEON_VBLANK_CRTC1 | DRM_RADEON_VBLANK_CRTC2)) {
if (stat & RADEON_CRTC_VBLANK_STAT)
atomic_inc(&dev->vbl_received);
if (stat & RADEON_CRTC2_VBLANK_STAT)
atomic_inc(&dev->vbl_received2);
} else if (((stat & RADEON_CRTC_VBLANK_STAT) &&
(vblank_crtc & DRM_RADEON_VBLANK_CRTC1)) ||
((stat & RADEON_CRTC2_VBLANK_STAT) &&
(vblank_crtc & DRM_RADEON_VBLANK_CRTC2)))
atomic_inc(&dev->vbl_received);
DRM_WAKEUP(&dev->vbl_queue);
drm_vbl_send_signals(dev);
}
if (stat & RADEON_CRTC_VBLANK_STAT)
drm_handle_vblank(dev, 0);
if (stat & RADEON_CRTC2_VBLANK_STAT)
drm_handle_vblank(dev, 1);
return IRQ_HANDLED;
}
......@@ -144,54 +175,27 @@ static int radeon_wait_irq(struct drm_device * dev, int swi_nr)
return ret;
}
static int radeon_driver_vblank_do_wait(struct drm_device * dev,
unsigned int *sequence, int crtc)
u32 radeon_get_vblank_counter(struct drm_device *dev, int crtc)
{
drm_radeon_private_t *dev_priv =
(drm_radeon_private_t *) dev->dev_private;
unsigned int cur_vblank;
int ret = 0;
int ack = 0;
atomic_t *counter;
drm_radeon_private_t *dev_priv = dev->dev_private;
u32 crtc_cnt_reg, crtc_status_reg;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
if (crtc == DRM_RADEON_VBLANK_CRTC1) {
counter = &dev->vbl_received;
ack |= RADEON_CRTC_VBLANK_STAT;
} else if (crtc == DRM_RADEON_VBLANK_CRTC2) {
counter = &dev->vbl_received2;
ack |= RADEON_CRTC2_VBLANK_STAT;
} else
if (crtc == 0) {
crtc_cnt_reg = RADEON_CRTC_CRNT_FRAME;
crtc_status_reg = RADEON_CRTC_STATUS;
} else if (crtc == 1) {
crtc_cnt_reg = RADEON_CRTC2_CRNT_FRAME;
crtc_status_reg = RADEON_CRTC2_STATUS;
} else {
return -EINVAL;
}
radeon_acknowledge_irqs(dev_priv, ack);
dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
(((cur_vblank = atomic_read(counter))
- *sequence) <= (1 << 23)));
*sequence = cur_vblank;
return ret;
}
int radeon_driver_vblank_wait(struct drm_device *dev, unsigned int *sequence)
{
return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC1);
}
int radeon_driver_vblank_wait2(struct drm_device *dev, unsigned int *sequence)
{
return radeon_driver_vblank_do_wait(dev, sequence, DRM_RADEON_VBLANK_CRTC2);
return RADEON_READ(crtc_cnt_reg) + (RADEON_READ(crtc_status_reg) & 1);
}
/* Needs the lock as it touches the ring.
......@@ -234,21 +238,6 @@ int radeon_irq_wait(struct drm_device *dev, void *data, struct drm_file *file_pr
return radeon_wait_irq(dev, irqwait->irq_seq);
}
static void radeon_enable_interrupt(struct drm_device *dev)
{
drm_radeon_private_t *dev_priv = (drm_radeon_private_t *) dev->dev_private;
dev_priv->irq_enable_reg = RADEON_SW_INT_ENABLE;
if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC1)
dev_priv->irq_enable_reg |= RADEON_CRTC_VBLANK_MASK;
if (dev_priv->vblank_crtc & DRM_RADEON_VBLANK_CRTC2)
dev_priv->irq_enable_reg |= RADEON_CRTC2_VBLANK_MASK;
RADEON_WRITE(RADEON_GEN_INT_CNTL, dev_priv->irq_enable_reg);
dev_priv->irq_enabled = 1;
}
/* drm_dma.h hooks
*/
void radeon_driver_irq_preinstall(struct drm_device * dev)
......@@ -260,20 +249,27 @@ void radeon_driver_irq_preinstall(struct drm_device * dev)
RADEON_WRITE(RADEON_GEN_INT_CNTL, 0);
/* Clear bits if they're already high */
radeon_acknowledge_irqs(dev_priv, (RADEON_SW_INT_TEST_ACK |
RADEON_CRTC_VBLANK_STAT |
RADEON_CRTC2_VBLANK_STAT));
radeon_acknowledge_irqs(dev_priv);
}
void radeon_driver_irq_postinstall(struct drm_device * dev)
int radeon_driver_irq_postinstall(struct drm_device * dev)
{
drm_radeon_private_t *dev_priv =
(drm_radeon_private_t *) dev->dev_private;
int ret;
atomic_set(&dev_priv->swi_emitted, 0);
DRM_INIT_WAITQUEUE(&dev_priv->swi_queue);
radeon_enable_interrupt(dev);
ret = drm_vblank_init(dev, 2);
if (ret)
return ret;
dev->max_vblank_count = 0x001fffff;
radeon_irq_set_state(dev, RADEON_SW_INT_ENABLE, 1);
return 0;
}
void radeon_driver_irq_uninstall(struct drm_device * dev)
......@@ -315,6 +311,5 @@ int radeon_vblank_crtc_set(struct drm_device *dev, int64_t value)
return -EINVAL;
}
dev_priv->vblank_crtc = (unsigned int)value;
radeon_enable_interrupt(dev);
return 0;
}
......@@ -40,11 +40,13 @@ static struct pci_device_id pciidlist[] = {
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
DRIVER_IRQ_SHARED,
.load = via_driver_load,
.unload = via_driver_unload,
.context_dtor = via_final_context,
.vblank_wait = via_driver_vblank_wait,
.get_vblank_counter = via_get_vblank_counter,
.enable_vblank = via_enable_vblank,
.disable_vblank = via_disable_vblank,
.irq_preinstall = via_driver_irq_preinstall,
.irq_postinstall = via_driver_irq_postinstall,
.irq_uninstall = via_driver_irq_uninstall,
......
......@@ -75,6 +75,7 @@ typedef struct drm_via_private {
struct timeval last_vblank;
int last_vblank_valid;
unsigned usec_per_vblank;
atomic_t vbl_received;
drm_via_state_t hc_state;
char pci_buf[VIA_PCI_BUF_SIZE];
const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE];
......@@ -130,11 +131,13 @@ extern int via_init_context(struct drm_device * dev, int context);
extern int via_final_context(struct drm_device * dev, int context);
extern int via_do_cleanup_map(struct drm_device * dev);
extern int via_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence);
extern u32 via_get_vblank_counter(struct drm_device *dev, int crtc);
extern int via_enable_vblank(struct drm_device *dev, int crtc);
extern void via_disable_vblank(struct drm_device *dev, int crtc);
extern irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS);
extern void via_driver_irq_preinstall(struct drm_device * dev);
extern void via_driver_irq_postinstall(struct drm_device * dev);
extern int via_driver_irq_postinstall(struct drm_device * dev);
extern void via_driver_irq_uninstall(struct drm_device * dev);
extern int via_dma_cleanup(struct drm_device * dev);
......
......@@ -92,8 +92,17 @@ static int via_irqmap_unichrome[] = {-1, -1, -1, 0, -1, 1};
static unsigned time_diff(struct timeval *now, struct timeval *then)
{
return (now->tv_usec >= then->tv_usec) ?
now->tv_usec - then->tv_usec :
1000000 - (then->tv_usec - now->tv_usec);
now->tv_usec - then->tv_usec :
1000000 - (then->tv_usec - now->tv_usec);
}
u32 via_get_vblank_counter(struct drm_device *dev, int crtc)
{
drm_via_private_t *dev_priv = dev->dev_private;
if (crtc != 0)
return 0;
return atomic_read(&dev_priv->vbl_received);
}
irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
......@@ -108,8 +117,8 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
status = VIA_READ(VIA_REG_INTERRUPT);
if (status & VIA_IRQ_VBLANK_PENDING) {
atomic_inc(&dev->vbl_received);
if (!(atomic_read(&dev->vbl_received) & 0x0F)) {
atomic_inc(&dev_priv->vbl_received);
if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) {
do_gettimeofday(&cur_vblank);
if (dev_priv->last_vblank_valid) {
dev_priv->usec_per_vblank =
......@@ -119,12 +128,11 @@ irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS)
dev_priv->last_vblank = cur_vblank;
dev_priv->last_vblank_valid = 1;
}
if (!(atomic_read(&dev->vbl_received) & 0xFF)) {
if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) {
DRM_DEBUG("US per vblank is: %u\n",
dev_priv->usec_per_vblank);
}
DRM_WAKEUP(&dev->vbl_queue);
drm_vbl_send_signals(dev);
drm_handle_vblank(dev, 0);
handled = 1;
}
......@@ -163,31 +171,34 @@ static __inline__ void viadrv_acknowledge_irqs(drm_via_private_t * dev_priv)
}
}
int via_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence)
int via_enable_vblank(struct drm_device *dev, int crtc)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
unsigned int cur_vblank;
int ret = 0;
drm_via_private_t *dev_priv = dev->dev_private;
u32 status;
DRM_DEBUG("\n");
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
if (crtc != 0) {
DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
return -EINVAL;
}
viadrv_acknowledge_irqs(dev_priv);
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status & VIA_IRQ_VBLANK_ENABLE);
/* Assume that the user has missed the current sequence number
* by about a day rather than she wants to wait for years
* using vertical blanks...
*/
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
(((cur_vblank = atomic_read(&dev->vbl_received)) -
*sequence) <= (1 << 23)));
return 0;
}
*sequence = cur_vblank;
return ret;
void via_disable_vblank(struct drm_device *dev, int crtc)
{
drm_via_private_t *dev_priv = dev->dev_private;
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) & ~0x30);
if (crtc != 0)
DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc);
}
static int
......@@ -292,23 +303,25 @@ void via_driver_irq_preinstall(struct drm_device * dev)
}
}
void via_driver_irq_postinstall(struct drm_device * dev)
int via_driver_irq_postinstall(struct drm_device * dev)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
u32 status;
DRM_DEBUG("\n");
if (dev_priv) {
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
| dev_priv->irq_enable_mask);
DRM_DEBUG("via_driver_irq_postinstall\n");
if (!dev_priv)
return -EINVAL;
/* Some magic, oh for some data sheets ! */
drm_vblank_init(dev, 1);
status = VIA_READ(VIA_REG_INTERRUPT);
VIA_WRITE(VIA_REG_INTERRUPT, status | VIA_IRQ_GLOBAL
| dev_priv->irq_enable_mask);
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
/* Some magic, oh for some data sheets ! */
VIA_WRITE8(0x83d4, 0x11);
VIA_WRITE8(0x83d5, VIA_READ8(0x83d5) | 0x30);
}
return 0;
}
void via_driver_irq_uninstall(struct drm_device * dev)
......
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