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path: root/drivers/gpu/drm/i915/i915_irq.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r--drivers/gpu/drm/i915/i915_irq.c182
1 files changed, 82 insertions, 100 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 8c3f0802686d..2479be001e40 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -53,7 +53,7 @@
I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT)
/** Interrupts that we mask and unmask at runtime. */
-#define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT)
+#define I915_INTERRUPT_ENABLE_VAR (I915_USER_INTERRUPT | I915_BSD_USER_INTERRUPT)
#define I915_PIPE_VBLANK_STATUS (PIPE_START_VBLANK_INTERRUPT_STATUS |\
PIPE_VBLANK_INTERRUPT_STATUS)
@@ -74,7 +74,7 @@ ironlake_enable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
}
}
-static inline void
+void
ironlake_disable_graphics_irq(drm_i915_private_t *dev_priv, u32 mask)
{
if ((dev_priv->gt_irq_mask_reg & mask) != mask) {
@@ -115,7 +115,7 @@ i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask)
}
}
-static inline void
+void
i915_disable_irq(drm_i915_private_t *dev_priv, u32 mask)
{
if ((dev_priv->irq_mask_reg & mask) != mask) {
@@ -278,10 +278,9 @@ static void i915_handle_rps_change(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
u32 busy_up, busy_down, max_avg, min_avg;
- u16 rgvswctl;
u8 new_delay = dev_priv->cur_delay;
- I915_WRITE(MEMINTRSTS, I915_READ(MEMINTRSTS) & ~MEMINT_EVAL_CHG);
+ I915_WRITE16(MEMINTRSTS, MEMINT_EVAL_CHG);
busy_up = I915_READ(RCPREVBSYTUPAVG);
busy_down = I915_READ(RCPREVBSYTDNAVG);
max_avg = I915_READ(RCBMAXAVG);
@@ -300,27 +299,8 @@ static void i915_handle_rps_change(struct drm_device *dev)
new_delay = dev_priv->min_delay;
}
- DRM_DEBUG("rps change requested: %d -> %d\n",
- dev_priv->cur_delay, new_delay);
-
- rgvswctl = I915_READ(MEMSWCTL);
- if (rgvswctl & MEMCTL_CMD_STS) {
- DRM_ERROR("gpu busy, RCS change rejected\n");
- return; /* still busy with another command */
- }
-
- /* Program the new state */
- rgvswctl = (MEMCTL_CMD_CHFREQ << MEMCTL_CMD_SHIFT) |
- (new_delay << MEMCTL_FREQ_SHIFT) | MEMCTL_SFCAVM;
- I915_WRITE(MEMSWCTL, rgvswctl);
- POSTING_READ(MEMSWCTL);
-
- rgvswctl |= MEMCTL_CMD_STS;
- I915_WRITE(MEMSWCTL, rgvswctl);
-
- dev_priv->cur_delay = new_delay;
-
- DRM_DEBUG("rps changed\n");
+ if (ironlake_set_drps(dev, new_delay))
+ dev_priv->cur_delay = new_delay;
return;
}
@@ -331,6 +311,7 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev)
int ret = IRQ_NONE;
u32 de_iir, gt_iir, de_ier, pch_iir;
struct drm_i915_master_private *master_priv;
+ struct intel_ring_buffer *render_ring = &dev_priv->render_ring;
/* disable master interrupt before clearing iir */
de_ier = I915_READ(DEIER);
@@ -354,13 +335,16 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev)
}
if (gt_iir & GT_PIPE_NOTIFY) {
- u32 seqno = i915_get_gem_seqno(dev);
- dev_priv->mm.irq_gem_seqno = seqno;
+ u32 seqno = render_ring->get_gem_seqno(dev, render_ring);
+ render_ring->irq_gem_seqno = seqno;
trace_i915_gem_request_complete(dev, seqno);
- DRM_WAKEUP(&dev_priv->irq_queue);
+ DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
dev_priv->hangcheck_count = 0;
mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
}
+ if (gt_iir & GT_BSD_USER_INTERRUPT)
+ DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
+
if (de_iir & DE_GSE)
ironlake_opregion_gse_intr(dev);
@@ -388,7 +372,7 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev)
}
if (de_iir & DE_PCU_EVENT) {
- I915_WRITE(MEMINTRSTS, I915_READ(MEMINTRSTS));
+ I915_WRITE16(MEMINTRSTS, I915_READ(MEMINTRSTS));
i915_handle_rps_change(dev);
}
@@ -536,17 +520,18 @@ i915_ringbuffer_last_batch(struct drm_device *dev)
*/
bbaddr = 0;
head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
- ring = (u32 *)(dev_priv->ring.virtual_start + head);
+ ring = (u32 *)(dev_priv->render_ring.virtual_start + head);
- while (--ring >= (u32 *)dev_priv->ring.virtual_start) {
+ while (--ring >= (u32 *)dev_priv->render_ring.virtual_start) {
bbaddr = i915_get_bbaddr(dev, ring);
if (bbaddr)
break;
}
if (bbaddr == 0) {
- ring = (u32 *)(dev_priv->ring.virtual_start + dev_priv->ring.Size);
- while (--ring >= (u32 *)dev_priv->ring.virtual_start) {
+ ring = (u32 *)(dev_priv->render_ring.virtual_start
+ + dev_priv->render_ring.size);
+ while (--ring >= (u32 *)dev_priv->render_ring.virtual_start) {
bbaddr = i915_get_bbaddr(dev, ring);
if (bbaddr)
break;
@@ -587,7 +572,7 @@ static void i915_capture_error_state(struct drm_device *dev)
return;
}
- error->seqno = i915_get_gem_seqno(dev);
+ error->seqno = i915_get_gem_seqno(dev, &dev_priv->render_ring);
error->eir = I915_READ(EIR);
error->pgtbl_er = I915_READ(PGTBL_ER);
error->pipeastat = I915_READ(PIPEASTAT);
@@ -615,7 +600,9 @@ static void i915_capture_error_state(struct drm_device *dev)
batchbuffer[0] = NULL;
batchbuffer[1] = NULL;
count = 0;
- list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) {
+ list_for_each_entry(obj_priv,
+ &dev_priv->render_ring.active_list, list) {
+
struct drm_gem_object *obj = &obj_priv->base;
if (batchbuffer[0] == NULL &&
@@ -639,7 +626,8 @@ static void i915_capture_error_state(struct drm_device *dev)
error->batchbuffer[1] = i915_error_object_create(dev, batchbuffer[1]);
/* Record the ringbuffer */
- error->ringbuffer = i915_error_object_create(dev, dev_priv->ring.ring_obj);
+ error->ringbuffer = i915_error_object_create(dev,
+ dev_priv->render_ring.gem_object);
/* Record buffers on the active list. */
error->active_bo = NULL;
@@ -651,7 +639,8 @@ static void i915_capture_error_state(struct drm_device *dev)
if (error->active_bo) {
int i = 0;
- list_for_each_entry(obj_priv, &dev_priv->mm.active_list, list) {
+ list_for_each_entry(obj_priv,
+ &dev_priv->render_ring.active_list, list) {
struct drm_gem_object *obj = &obj_priv->base;
error->active_bo[i].size = obj->size;
@@ -703,24 +692,13 @@ void i915_destroy_error_state(struct drm_device *dev)
i915_error_state_free(dev, error);
}
-/**
- * i915_handle_error - handle an error interrupt
- * @dev: drm device
- *
- * Do some basic checking of regsiter state at error interrupt time and
- * dump it to the syslog. Also call i915_capture_error_state() to make
- * sure we get a record and make it available in debugfs. Fire a uevent
- * so userspace knows something bad happened (should trigger collection
- * of a ring dump etc.).
- */
-static void i915_handle_error(struct drm_device *dev, bool wedged)
+static void i915_report_and_clear_eir(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
u32 eir = I915_READ(EIR);
- u32 pipea_stats = I915_READ(PIPEASTAT);
- u32 pipeb_stats = I915_READ(PIPEBSTAT);
- i915_capture_error_state(dev);
+ if (!eir)
+ return;
printk(KERN_ERR "render error detected, EIR: 0x%08x\n",
eir);
@@ -766,6 +744,9 @@ static void i915_handle_error(struct drm_device *dev, bool wedged)
}
if (eir & I915_ERROR_MEMORY_REFRESH) {
+ u32 pipea_stats = I915_READ(PIPEASTAT);
+ u32 pipeb_stats = I915_READ(PIPEBSTAT);
+
printk(KERN_ERR "memory refresh error\n");
printk(KERN_ERR "PIPEASTAT: 0x%08x\n",
pipea_stats);
@@ -822,6 +803,24 @@ static void i915_handle_error(struct drm_device *dev, bool wedged)
I915_WRITE(EMR, I915_READ(EMR) | eir);
I915_WRITE(IIR, I915_RENDER_COMMAND_PARSER_ERROR_INTERRUPT);
}
+}
+
+/**
+ * i915_handle_error - handle an error interrupt
+ * @dev: drm device
+ *
+ * Do some basic checking of regsiter state at error interrupt time and
+ * dump it to the syslog. Also call i915_capture_error_state() to make
+ * sure we get a record and make it available in debugfs. Fire a uevent
+ * so userspace knows something bad happened (should trigger collection
+ * of a ring dump etc.).
+ */
+static void i915_handle_error(struct drm_device *dev, bool wedged)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ i915_capture_error_state(dev);
+ i915_report_and_clear_eir(dev);
if (wedged) {
atomic_set(&dev_priv->mm.wedged, 1);
@@ -829,7 +828,7 @@ static void i915_handle_error(struct drm_device *dev, bool wedged)
/*
* Wakeup waiting processes so they don't hang
*/
- DRM_WAKEUP(&dev_priv->irq_queue);
+ DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
}
queue_work(dev_priv->wq, &dev_priv->error_work);
@@ -848,6 +847,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
unsigned long irqflags;
int irq_received;
int ret = IRQ_NONE;
+ struct intel_ring_buffer *render_ring = &dev_priv->render_ring;
atomic_inc(&dev_priv->irq_received);
@@ -928,14 +928,18 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
}
if (iir & I915_USER_INTERRUPT) {
- u32 seqno = i915_get_gem_seqno(dev);
- dev_priv->mm.irq_gem_seqno = seqno;
+ u32 seqno =
+ render_ring->get_gem_seqno(dev, render_ring);
+ render_ring->irq_gem_seqno = seqno;
trace_i915_gem_request_complete(dev, seqno);
- DRM_WAKEUP(&dev_priv->irq_queue);
+ DRM_WAKEUP(&dev_priv->render_ring.irq_queue);
dev_priv->hangcheck_count = 0;
mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
}
+ if (HAS_BSD(dev) && (iir & I915_BSD_USER_INTERRUPT))
+ DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
+
if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT)
intel_prepare_page_flip(dev, 0);
@@ -984,7 +988,6 @@ static int i915_emit_irq(struct drm_device * dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
- RING_LOCALS;
i915_kernel_lost_context(dev);
@@ -1006,43 +1009,13 @@ static int i915_emit_irq(struct drm_device * dev)
return dev_priv->counter;
}
-void i915_user_irq_get(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
- if (dev->irq_enabled && (++dev_priv->user_irq_refcount == 1)) {
- if (HAS_PCH_SPLIT(dev))
- ironlake_enable_graphics_irq(dev_priv, GT_PIPE_NOTIFY);
- else
- i915_enable_irq(dev_priv, I915_USER_INTERRUPT);
- }
- spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);
-}
-
-void i915_user_irq_put(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- unsigned long irqflags;
-
- spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
- BUG_ON(dev->irq_enabled && dev_priv->user_irq_refcount <= 0);
- if (dev->irq_enabled && (--dev_priv->user_irq_refcount == 0)) {
- if (HAS_PCH_SPLIT(dev))
- ironlake_disable_graphics_irq(dev_priv, GT_PIPE_NOTIFY);
- else
- i915_disable_irq(dev_priv, I915_USER_INTERRUPT);
- }
- spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags);
-}
-
void i915_trace_irq_get(struct drm_device *dev, u32 seqno)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ struct intel_ring_buffer *render_ring = &dev_priv->render_ring;
if (dev_priv->trace_irq_seqno == 0)
- i915_user_irq_get(dev);
+ render_ring->user_irq_get(dev, render_ring);
dev_priv->trace_irq_seqno = seqno;
}
@@ -1052,6 +1025,7 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr)
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
int ret = 0;
+ struct intel_ring_buffer *render_ring = &dev_priv->render_ring;
DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
READ_BREADCRUMB(dev_priv));
@@ -1065,10 +1039,10 @@ static int i915_wait_irq(struct drm_device * dev, int irq_nr)
if (master_priv->sarea_priv)
master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
- i915_user_irq_get(dev);
- DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ,
+ render_ring->user_irq_get(dev, render_ring);
+ DRM_WAIT_ON(ret, dev_priv->render_ring.irq_queue, 3 * DRM_HZ,
READ_BREADCRUMB(dev_priv) >= irq_nr);
- i915_user_irq_put(dev);
+ render_ring->user_irq_put(dev, render_ring);
if (ret == -EBUSY) {
DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
@@ -1087,7 +1061,7 @@ int i915_irq_emit(struct drm_device *dev, void *data,
drm_i915_irq_emit_t *emit = data;
int result;
- if (!dev_priv || !dev_priv->ring.virtual_start) {
+ if (!dev_priv || !dev_priv->render_ring.virtual_start) {
DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
@@ -1233,9 +1207,12 @@ int i915_vblank_swap(struct drm_device *dev, void *data,
return -EINVAL;
}
-struct drm_i915_gem_request *i915_get_tail_request(struct drm_device *dev) {
+struct drm_i915_gem_request *
+i915_get_tail_request(struct drm_device *dev)
+{
drm_i915_private_t *dev_priv = dev->dev_private;
- return list_entry(dev_priv->mm.request_list.prev, struct drm_i915_gem_request, list);
+ return list_entry(dev_priv->render_ring.request_list.prev,
+ struct drm_i915_gem_request, list);
}
/**
@@ -1260,8 +1237,10 @@ void i915_hangcheck_elapsed(unsigned long data)
acthd = I915_READ(ACTHD_I965);
/* If all work is done then ACTHD clearly hasn't advanced. */
- if (list_empty(&dev_priv->mm.request_list) ||
- i915_seqno_passed(i915_get_gem_seqno(dev), i915_get_tail_request(dev)->seqno)) {
+ if (list_empty(&dev_priv->render_ring.request_list) ||
+ i915_seqno_passed(i915_get_gem_seqno(dev,
+ &dev_priv->render_ring),
+ i915_get_tail_request(dev)->seqno)) {
dev_priv->hangcheck_count = 0;
return;
}
@@ -1314,7 +1293,7 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
/* enable kind of interrupts always enabled */
u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE;
- u32 render_mask = GT_PIPE_NOTIFY;
+ u32 render_mask = GT_PIPE_NOTIFY | GT_BSD_USER_INTERRUPT;
u32 hotplug_mask = SDE_CRT_HOTPLUG | SDE_PORTB_HOTPLUG |
SDE_PORTC_HOTPLUG | SDE_PORTD_HOTPLUG;
@@ -1328,7 +1307,7 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
(void) I915_READ(DEIER);
/* user interrupt should be enabled, but masked initial */
- dev_priv->gt_irq_mask_reg = 0xffffffff;
+ dev_priv->gt_irq_mask_reg = ~render_mask;
dev_priv->gt_irq_enable_reg = render_mask;
I915_WRITE(GTIIR, I915_READ(GTIIR));
@@ -1391,7 +1370,10 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
u32 enable_mask = I915_INTERRUPT_ENABLE_FIX | I915_INTERRUPT_ENABLE_VAR;
u32 error_mask;
- DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
+ DRM_INIT_WAITQUEUE(&dev_priv->render_ring.irq_queue);
+
+ if (HAS_BSD(dev))
+ DRM_INIT_WAITQUEUE(&dev_priv->bsd_ring.irq_queue);
dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;