mutex_unlock(&dev_priv->dev->struct_mutex);
}
-static void ivybridge_parity_error_irq_handler(struct drm_device *dev, u32 iir)
+static void ivybridge_parity_error_irq_handler(struct drm_i915_private *dev_priv,
+ u32 iir)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- if (!HAS_L3_DPF(dev))
+ if (!HAS_L3_DPF(dev_priv))
return;
spin_lock(&dev_priv->irq_lock);
- gen5_disable_gt_irq(dev_priv, GT_PARITY_ERROR(dev));
+ gen5_disable_gt_irq(dev_priv, GT_PARITY_ERROR(dev_priv));
spin_unlock(&dev_priv->irq_lock);
- iir &= GT_PARITY_ERROR(dev);
+ iir &= GT_PARITY_ERROR(dev_priv);
if (iir & GT_RENDER_L3_PARITY_ERROR_INTERRUPT_S1)
dev_priv->l3_parity.which_slice |= 1 << 1;
queue_work(dev_priv->wq, &dev_priv->l3_parity.error_work);
}
-static void ilk_gt_irq_handler(struct drm_device *dev,
- struct drm_i915_private *dev_priv,
+static void ilk_gt_irq_handler(struct drm_i915_private *dev_priv,
u32 gt_iir)
{
if (gt_iir &
notify_ring(&dev_priv->engine[VCS]);
}
-static void snb_gt_irq_handler(struct drm_device *dev,
- struct drm_i915_private *dev_priv,
+static void snb_gt_irq_handler(struct drm_i915_private *dev_priv,
u32 gt_iir)
{
GT_RENDER_CS_MASTER_ERROR_INTERRUPT))
DRM_DEBUG("Command parser error, gt_iir 0x%08x\n", gt_iir);
- if (gt_iir & GT_PARITY_ERROR(dev))
- ivybridge_parity_error_irq_handler(dev, gt_iir);
+ if (gt_iir & GT_PARITY_ERROR(dev_priv))
+ ivybridge_parity_error_irq_handler(dev_priv, gt_iir);
}
static __always_inline void
tasklet_schedule(&engine->irq_tasklet);
}
-static irqreturn_t gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
- u32 master_ctl)
+static irqreturn_t gen8_gt_irq_ack(struct drm_i915_private *dev_priv,
+ u32 master_ctl,
+ u32 gt_iir[4])
{
irqreturn_t ret = IRQ_NONE;
if (master_ctl & (GEN8_GT_RCS_IRQ | GEN8_GT_BCS_IRQ)) {
- u32 iir = I915_READ_FW(GEN8_GT_IIR(0));
- if (iir) {
- I915_WRITE_FW(GEN8_GT_IIR(0), iir);
+ gt_iir[0] = I915_READ_FW(GEN8_GT_IIR(0));
+ if (gt_iir[0]) {
+ I915_WRITE_FW(GEN8_GT_IIR(0), gt_iir[0]);
ret = IRQ_HANDLED;
-
- gen8_cs_irq_handler(&dev_priv->engine[RCS],
- iir, GEN8_RCS_IRQ_SHIFT);
-
- gen8_cs_irq_handler(&dev_priv->engine[BCS],
- iir, GEN8_BCS_IRQ_SHIFT);
} else
DRM_ERROR("The master control interrupt lied (GT0)!\n");
}
if (master_ctl & (GEN8_GT_VCS1_IRQ | GEN8_GT_VCS2_IRQ)) {
- u32 iir = I915_READ_FW(GEN8_GT_IIR(1));
- if (iir) {
- I915_WRITE_FW(GEN8_GT_IIR(1), iir);
+ gt_iir[1] = I915_READ_FW(GEN8_GT_IIR(1));
+ if (gt_iir[1]) {
+ I915_WRITE_FW(GEN8_GT_IIR(1), gt_iir[1]);
ret = IRQ_HANDLED;
-
- gen8_cs_irq_handler(&dev_priv->engine[VCS],
- iir, GEN8_VCS1_IRQ_SHIFT);
-
- gen8_cs_irq_handler(&dev_priv->engine[VCS2],
- iir, GEN8_VCS2_IRQ_SHIFT);
} else
DRM_ERROR("The master control interrupt lied (GT1)!\n");
}
if (master_ctl & GEN8_GT_VECS_IRQ) {
- u32 iir = I915_READ_FW(GEN8_GT_IIR(3));
- if (iir) {
- I915_WRITE_FW(GEN8_GT_IIR(3), iir);
+ gt_iir[3] = I915_READ_FW(GEN8_GT_IIR(3));
+ if (gt_iir[3]) {
+ I915_WRITE_FW(GEN8_GT_IIR(3), gt_iir[3]);
ret = IRQ_HANDLED;
-
- gen8_cs_irq_handler(&dev_priv->engine[VECS],
- iir, GEN8_VECS_IRQ_SHIFT);
} else
DRM_ERROR("The master control interrupt lied (GT3)!\n");
}
if (master_ctl & GEN8_GT_PM_IRQ) {
- u32 iir = I915_READ_FW(GEN8_GT_IIR(2));
- if (iir & dev_priv->pm_rps_events) {
+ gt_iir[2] = I915_READ_FW(GEN8_GT_IIR(2));
+ if (gt_iir[2] & dev_priv->pm_rps_events) {
I915_WRITE_FW(GEN8_GT_IIR(2),
- iir & dev_priv->pm_rps_events);
+ gt_iir[2] & dev_priv->pm_rps_events);
ret = IRQ_HANDLED;
- gen6_rps_irq_handler(dev_priv, iir);
} else
DRM_ERROR("The master control interrupt lied (PM)!\n");
}
return ret;
}
+static void gen8_gt_irq_handler(struct drm_i915_private *dev_priv,
+ u32 gt_iir[4])
+{
+ if (gt_iir[0]) {
+ gen8_cs_irq_handler(&dev_priv->engine[RCS],
+ gt_iir[0], GEN8_RCS_IRQ_SHIFT);
+ gen8_cs_irq_handler(&dev_priv->engine[BCS],
+ gt_iir[0], GEN8_BCS_IRQ_SHIFT);
+ }
+
+ if (gt_iir[1]) {
+ gen8_cs_irq_handler(&dev_priv->engine[VCS],
+ gt_iir[1], GEN8_VCS1_IRQ_SHIFT);
+ gen8_cs_irq_handler(&dev_priv->engine[VCS2],
+ gt_iir[1], GEN8_VCS2_IRQ_SHIFT);
+ }
+
+ if (gt_iir[3])
+ gen8_cs_irq_handler(&dev_priv->engine[VECS],
+ gt_iir[3], GEN8_VECS_IRQ_SHIFT);
+
+ if (gt_iir[2] & dev_priv->pm_rps_events)
+ gen6_rps_irq_handler(dev_priv, gt_iir[2]);
+}
+
static bool bxt_port_hotplug_long_detect(enum port port, u32 val)
{
switch (port) {
return true;
}
-static void valleyview_pipestat_irq_handler(struct drm_device *dev, u32 iir)
+static void valleyview_pipestat_irq_ack(struct drm_device *dev, u32 iir,
+ u32 pipe_stats[I915_MAX_PIPES])
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 pipe_stats[I915_MAX_PIPES] = { };
int pipe;
spin_lock(&dev_priv->irq_lock);
I915_WRITE(reg, pipe_stats[pipe]);
}
spin_unlock(&dev_priv->irq_lock);
+}
+
+static void valleyview_pipestat_irq_handler(struct drm_device *dev,
+ u32 pipe_stats[I915_MAX_PIPES])
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+ enum pipe pipe;
for_each_pipe(dev_priv, pipe) {
if (pipe_stats[pipe] & PIPE_START_VBLANK_INTERRUPT_STATUS &&
gmbus_irq_handler(dev);
}
-static void i9xx_hpd_irq_handler(struct drm_device *dev)
+static u32 i9xx_hpd_irq_ack(struct drm_i915_private *dev_priv)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
u32 hotplug_status = I915_READ(PORT_HOTPLUG_STAT);
- u32 pin_mask = 0, long_mask = 0;
- if (!hotplug_status)
- return;
+ if (hotplug_status)
+ I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
- I915_WRITE(PORT_HOTPLUG_STAT, hotplug_status);
- /*
- * Make sure hotplug status is cleared before we clear IIR, or else we
- * may miss hotplug events.
- */
- POSTING_READ(PORT_HOTPLUG_STAT);
+ return hotplug_status;
+}
+
+static void i9xx_hpd_irq_handler(struct drm_device *dev,
+ u32 hotplug_status)
+{
+ u32 pin_mask = 0, long_mask = 0;
if (IS_G4X(dev) || IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
u32 hotplug_trigger = hotplug_status & HOTPLUG_INT_STATUS_G4X;
{
struct drm_device *dev = arg;
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 iir, gt_iir, pm_iir;
irqreturn_t ret = IRQ_NONE;
if (!intel_irqs_enabled(dev_priv))
/* IRQs are synced during runtime_suspend, we don't require a wakeref */
disable_rpm_wakeref_asserts(dev_priv);
- while (true) {
- /* Find, clear, then process each source of interrupt */
+ do {
+ u32 iir, gt_iir, pm_iir;
+ u32 pipe_stats[I915_MAX_PIPES] = {};
+ u32 hotplug_status = 0;
+ u32 ier = 0;
gt_iir = I915_READ(GTIIR);
- if (gt_iir)
- I915_WRITE(GTIIR, gt_iir);
-
pm_iir = I915_READ(GEN6_PMIIR);
- if (pm_iir)
- I915_WRITE(GEN6_PMIIR, pm_iir);
-
iir = I915_READ(VLV_IIR);
- if (iir) {
- /* Consume port before clearing IIR or we'll miss events */
- if (iir & I915_DISPLAY_PORT_INTERRUPT)
- i9xx_hpd_irq_handler(dev);
- I915_WRITE(VLV_IIR, iir);
- }
if (gt_iir == 0 && pm_iir == 0 && iir == 0)
- goto out;
+ break;
ret = IRQ_HANDLED;
+ /*
+ * Theory on interrupt generation, based on empirical evidence:
+ *
+ * x = ((VLV_IIR & VLV_IER) ||
+ * (((GT_IIR & GT_IER) || (GEN6_PMIIR & GEN6_PMIER)) &&
+ * (VLV_MASTER_IER & MASTER_INTERRUPT_ENABLE)));
+ *
+ * A CPU interrupt will only be raised when 'x' has a 0->1 edge.
+ * Hence we clear MASTER_INTERRUPT_ENABLE and VLV_IER to
+ * guarantee the CPU interrupt will be raised again even if we
+ * don't end up clearing all the VLV_IIR, GT_IIR, GEN6_PMIIR
+ * bits this time around.
+ */
+ I915_WRITE(VLV_MASTER_IER, 0);
+ ier = I915_READ(VLV_IER);
+ I915_WRITE(VLV_IER, 0);
+
if (gt_iir)
- snb_gt_irq_handler(dev, dev_priv, gt_iir);
+ I915_WRITE(GTIIR, gt_iir);
if (pm_iir)
- gen6_rps_irq_handler(dev_priv, pm_iir);
+ I915_WRITE(GEN6_PMIIR, pm_iir);
+
+ if (iir & I915_DISPLAY_PORT_INTERRUPT)
+ hotplug_status = i9xx_hpd_irq_ack(dev_priv);
+
/* Call regardless, as some status bits might not be
* signalled in iir */
- valleyview_pipestat_irq_handler(dev, iir);
- }
+ valleyview_pipestat_irq_ack(dev, iir, pipe_stats);
+
+ /*
+ * VLV_IIR is single buffered, and reflects the level
+ * from PIPESTAT/PORT_HOTPLUG_STAT, hence clear it last.
+ */
+ if (iir)
+ I915_WRITE(VLV_IIR, iir);
+
+ I915_WRITE(VLV_IER, ier);
+ I915_WRITE(VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE);
+ POSTING_READ(VLV_MASTER_IER);
+
+ if (gt_iir)
+ snb_gt_irq_handler(dev_priv, gt_iir);
+ if (pm_iir)
+ gen6_rps_irq_handler(dev_priv, pm_iir);
+
+ if (hotplug_status)
+ i9xx_hpd_irq_handler(dev, hotplug_status);
+
+ valleyview_pipestat_irq_handler(dev, pipe_stats);
+ } while (0);
-out:
enable_rpm_wakeref_asserts(dev_priv);
return ret;
{
struct drm_device *dev = arg;
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 master_ctl, iir;
irqreturn_t ret = IRQ_NONE;
if (!intel_irqs_enabled(dev_priv))
disable_rpm_wakeref_asserts(dev_priv);
do {
+ u32 master_ctl, iir;
+ u32 gt_iir[4] = {};
+ u32 pipe_stats[I915_MAX_PIPES] = {};
+ u32 hotplug_status = 0;
+ u32 ier = 0;
+
master_ctl = I915_READ(GEN8_MASTER_IRQ) & ~GEN8_MASTER_IRQ_CONTROL;
iir = I915_READ(VLV_IIR);
ret = IRQ_HANDLED;
+ /*
+ * Theory on interrupt generation, based on empirical evidence:
+ *
+ * x = ((VLV_IIR & VLV_IER) ||
+ * ((GEN8_MASTER_IRQ & ~GEN8_MASTER_IRQ_CONTROL) &&
+ * (GEN8_MASTER_IRQ & GEN8_MASTER_IRQ_CONTROL)));
+ *
+ * A CPU interrupt will only be raised when 'x' has a 0->1 edge.
+ * Hence we clear GEN8_MASTER_IRQ_CONTROL and VLV_IER to
+ * guarantee the CPU interrupt will be raised again even if we
+ * don't end up clearing all the VLV_IIR and GEN8_MASTER_IRQ_CONTROL
+ * bits this time around.
+ */
I915_WRITE(GEN8_MASTER_IRQ, 0);
+ ier = I915_READ(VLV_IER);
+ I915_WRITE(VLV_IER, 0);
- /* Find, clear, then process each source of interrupt */
+ gen8_gt_irq_ack(dev_priv, master_ctl, gt_iir);
- if (iir) {
- /* Consume port before clearing IIR or we'll miss events */
- if (iir & I915_DISPLAY_PORT_INTERRUPT)
- i9xx_hpd_irq_handler(dev);
- I915_WRITE(VLV_IIR, iir);
- }
-
- gen8_gt_irq_handler(dev_priv, master_ctl);
+ if (iir & I915_DISPLAY_PORT_INTERRUPT)
+ hotplug_status = i9xx_hpd_irq_ack(dev_priv);
/* Call regardless, as some status bits might not be
* signalled in iir */
- valleyview_pipestat_irq_handler(dev, iir);
+ valleyview_pipestat_irq_ack(dev, iir, pipe_stats);
- I915_WRITE(GEN8_MASTER_IRQ, DE_MASTER_IRQ_CONTROL);
+ /*
+ * VLV_IIR is single buffered, and reflects the level
+ * from PIPESTAT/PORT_HOTPLUG_STAT, hence clear it last.
+ */
+ if (iir)
+ I915_WRITE(VLV_IIR, iir);
+
+ I915_WRITE(VLV_IER, ier);
+ I915_WRITE(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
POSTING_READ(GEN8_MASTER_IRQ);
+
+ gen8_gt_irq_handler(dev_priv, gt_iir);
+
+ if (hotplug_status)
+ i9xx_hpd_irq_handler(dev, hotplug_status);
+
+ valleyview_pipestat_irq_handler(dev, pipe_stats);
} while (0);
enable_rpm_wakeref_asserts(dev_priv);
I915_WRITE(GTIIR, gt_iir);
ret = IRQ_HANDLED;
if (INTEL_INFO(dev)->gen >= 6)
- snb_gt_irq_handler(dev, dev_priv, gt_iir);
+ snb_gt_irq_handler(dev_priv, gt_iir);
else
- ilk_gt_irq_handler(dev, dev_priv, gt_iir);
+ ilk_gt_irq_handler(dev_priv, gt_iir);
}
de_iir = I915_READ(DEIIR);
struct drm_device *dev = arg;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 master_ctl;
+ u32 gt_iir[4] = {};
irqreturn_t ret;
if (!intel_irqs_enabled(dev_priv))
disable_rpm_wakeref_asserts(dev_priv);
/* Find, clear, then process each source of interrupt */
- ret = gen8_gt_irq_handler(dev_priv, master_ctl);
+ ret = gen8_gt_irq_ack(dev_priv, master_ctl, gt_iir);
+ gen8_gt_irq_handler(dev_priv, gt_iir);
ret |= gen8_de_irq_handler(dev_priv, master_ctl);
I915_WRITE_FW(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
static void i915_reset_and_wakeup(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
- struct i915_gpu_error *error = &dev_priv->gpu_error;
char *error_event[] = { I915_ERROR_UEVENT "=1", NULL };
char *reset_event[] = { I915_RESET_UEVENT "=1", NULL };
char *reset_done_event[] = { I915_ERROR_UEVENT "=0", NULL };
* the reset in-progress bit is only ever set by code outside of this
* work we don't need to worry about any other races.
*/
- if (i915_reset_in_progress(error) && !i915_terminally_wedged(error)) {
+ if (i915_reset_in_progress(&dev_priv->gpu_error)) {
DRM_DEBUG_DRIVER("resetting chip\n");
kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE,
reset_event);
intel_runtime_pm_put(dev_priv);
- if (ret == 0) {
- /*
- * After all the gem state is reset, increment the reset
- * counter and wake up everyone waiting for the reset to
- * complete.
- *
- * Since unlock operations are a one-sided barrier only,
- * we need to insert a barrier here to order any seqno
- * updates before
- * the counter increment.
- */
- smp_mb__before_atomic();
- atomic_inc(&dev_priv->gpu_error.reset_counter);
-
+ if (ret == 0)
kobject_uevent_env(&dev->primary->kdev->kobj,
KOBJ_CHANGE, reset_done_event);
- } else {
- atomic_or(I915_WEDGED, &error->reset_counter);
- }
/*
* Note: The wake_up also serves as a memory barrier so that
GEN5_IRQ_RESET(GEN6_PM);
}
+static void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
+{
+ enum pipe pipe;
+
+ if (IS_CHERRYVIEW(dev_priv))
+ I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
+ else
+ I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK);
+
+ i915_hotplug_interrupt_update_locked(dev_priv, 0xffffffff, 0);
+ I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));
+
+ for_each_pipe(dev_priv, pipe) {
+ I915_WRITE(PIPESTAT(pipe),
+ PIPE_FIFO_UNDERRUN_STATUS |
+ PIPESTAT_INT_STATUS_MASK);
+ dev_priv->pipestat_irq_mask[pipe] = 0;
+ }
+
+ GEN5_IRQ_RESET(VLV_);
+ dev_priv->irq_mask = ~0;
+}
+
+static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
+{
+ u32 pipestat_mask;
+ u32 enable_mask;
+ enum pipe pipe;
+
+ pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV |
+ PIPE_CRC_DONE_INTERRUPT_STATUS;
+
+ i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
+ for_each_pipe(dev_priv, pipe)
+ i915_enable_pipestat(dev_priv, pipe, pipestat_mask);
+
+ enable_mask = I915_DISPLAY_PORT_INTERRUPT |
+ I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
+ I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
+ if (IS_CHERRYVIEW(dev_priv))
+ enable_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
+
+ WARN_ON(dev_priv->irq_mask != ~0);
+
+ dev_priv->irq_mask = ~enable_mask;
+
+ GEN5_IRQ_INIT(VLV_, dev_priv->irq_mask, enable_mask);
+}
+
/* drm_dma.h hooks
*/
static void ironlake_irq_reset(struct drm_device *dev)
ibx_irq_reset(dev);
}
-static void vlv_display_irq_reset(struct drm_i915_private *dev_priv)
-{
- enum pipe pipe;
-
- i915_hotplug_interrupt_update(dev_priv, 0xFFFFFFFF, 0);
- I915_WRITE(PORT_HOTPLUG_STAT, I915_READ(PORT_HOTPLUG_STAT));
-
- for_each_pipe(dev_priv, pipe)
- I915_WRITE(PIPESTAT(pipe), 0xffff);
-
- GEN5_IRQ_RESET(VLV_);
-}
-
static void valleyview_irq_preinstall(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- gen5_gt_irq_reset(dev);
+ I915_WRITE(VLV_MASTER_IER, 0);
+ POSTING_READ(VLV_MASTER_IER);
- I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK);
+ gen5_gt_irq_reset(dev);
- vlv_display_irq_reset(dev_priv);
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_reset(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
}
static void gen8_gt_irq_reset(struct drm_i915_private *dev_priv)
GEN5_IRQ_RESET(GEN8_PCU_);
- I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK_CHV);
-
- vlv_display_irq_reset(dev_priv);
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_reset(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
}
static u32 intel_hpd_enabled_irqs(struct drm_device *dev,
return 0;
}
-static void valleyview_display_irqs_install(struct drm_i915_private *dev_priv)
-{
- u32 pipestat_mask;
- u32 iir_mask;
- enum pipe pipe;
-
- pipestat_mask = PIPESTAT_INT_STATUS_MASK |
- PIPE_FIFO_UNDERRUN_STATUS;
-
- for_each_pipe(dev_priv, pipe)
- I915_WRITE(PIPESTAT(pipe), pipestat_mask);
- POSTING_READ(PIPESTAT(PIPE_A));
-
- pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV |
- PIPE_CRC_DONE_INTERRUPT_STATUS;
-
- i915_enable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
- for_each_pipe(dev_priv, pipe)
- i915_enable_pipestat(dev_priv, pipe, pipestat_mask);
-
- iir_mask = I915_DISPLAY_PORT_INTERRUPT |
- I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
- I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
- if (IS_CHERRYVIEW(dev_priv))
- iir_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
- dev_priv->irq_mask &= ~iir_mask;
-
- I915_WRITE(VLV_IIR, iir_mask);
- I915_WRITE(VLV_IIR, iir_mask);
- I915_WRITE(VLV_IER, ~dev_priv->irq_mask);
- I915_WRITE(VLV_IMR, dev_priv->irq_mask);
- POSTING_READ(VLV_IMR);
-}
-
-static void valleyview_display_irqs_uninstall(struct drm_i915_private *dev_priv)
-{
- u32 pipestat_mask;
- u32 iir_mask;
- enum pipe pipe;
-
- iir_mask = I915_DISPLAY_PORT_INTERRUPT |
- I915_DISPLAY_PIPE_A_EVENT_INTERRUPT |
- I915_DISPLAY_PIPE_B_EVENT_INTERRUPT;
- if (IS_CHERRYVIEW(dev_priv))
- iir_mask |= I915_DISPLAY_PIPE_C_EVENT_INTERRUPT;
-
- dev_priv->irq_mask |= iir_mask;
- I915_WRITE(VLV_IMR, dev_priv->irq_mask);
- I915_WRITE(VLV_IER, ~dev_priv->irq_mask);
- I915_WRITE(VLV_IIR, iir_mask);
- I915_WRITE(VLV_IIR, iir_mask);
- POSTING_READ(VLV_IIR);
-
- pipestat_mask = PLANE_FLIP_DONE_INT_STATUS_VLV |
- PIPE_CRC_DONE_INTERRUPT_STATUS;
-
- i915_disable_pipestat(dev_priv, PIPE_A, PIPE_GMBUS_INTERRUPT_STATUS);
- for_each_pipe(dev_priv, pipe)
- i915_disable_pipestat(dev_priv, pipe, pipestat_mask);
-
- pipestat_mask = PIPESTAT_INT_STATUS_MASK |
- PIPE_FIFO_UNDERRUN_STATUS;
-
- for_each_pipe(dev_priv, pipe)
- I915_WRITE(PIPESTAT(pipe), pipestat_mask);
- POSTING_READ(PIPESTAT(PIPE_A));
-}
-
void valleyview_enable_display_irqs(struct drm_i915_private *dev_priv)
{
assert_spin_locked(&dev_priv->irq_lock);
dev_priv->display_irqs_enabled = true;
- if (intel_irqs_enabled(dev_priv))
- valleyview_display_irqs_install(dev_priv);
+ if (intel_irqs_enabled(dev_priv)) {
+ vlv_display_irq_reset(dev_priv);
+ vlv_display_irq_postinstall(dev_priv);
+ }
}
void valleyview_disable_display_irqs(struct drm_i915_private *dev_priv)
dev_priv->display_irqs_enabled = false;
if (intel_irqs_enabled(dev_priv))
- valleyview_display_irqs_uninstall(dev_priv);
+ vlv_display_irq_reset(dev_priv);
}
-static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
-{
- dev_priv->irq_mask = ~0;
-
- i915_hotplug_interrupt_update(dev_priv, 0xffffffff, 0);
- POSTING_READ(PORT_HOTPLUG_EN);
-
- I915_WRITE(VLV_IIR, 0xffffffff);
- I915_WRITE(VLV_IIR, 0xffffffff);
- I915_WRITE(VLV_IER, ~dev_priv->irq_mask);
- I915_WRITE(VLV_IMR, dev_priv->irq_mask);
- POSTING_READ(VLV_IMR);
-
- /* Interrupt setup is already guaranteed to be single-threaded, this is
- * just to make the assert_spin_locked check happy. */
- spin_lock_irq(&dev_priv->irq_lock);
- if (dev_priv->display_irqs_enabled)
- valleyview_display_irqs_install(dev_priv);
- spin_unlock_irq(&dev_priv->irq_lock);
-}
static int valleyview_irq_postinstall(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- vlv_display_irq_postinstall(dev_priv);
-
gen5_gt_irq_postinstall(dev);
- /* ack & enable invalid PTE error interrupts */
-#if 0 /* FIXME: add support to irq handler for checking these bits */
- I915_WRITE(DPINVGTT, DPINVGTT_STATUS_MASK);
- I915_WRITE(DPINVGTT, DPINVGTT_EN_MASK);
-#endif
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_postinstall(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
I915_WRITE(VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE);
+ POSTING_READ(VLV_MASTER_IER);
return 0;
}
if (HAS_PCH_SPLIT(dev))
ibx_irq_postinstall(dev);
- I915_WRITE(GEN8_MASTER_IRQ, DE_MASTER_IRQ_CONTROL);
+ I915_WRITE(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
POSTING_READ(GEN8_MASTER_IRQ);
return 0;
{
struct drm_i915_private *dev_priv = dev->dev_private;
- vlv_display_irq_postinstall(dev_priv);
-
gen8_gt_irq_postinstall(dev_priv);
- I915_WRITE(GEN8_MASTER_IRQ, MASTER_INTERRUPT_ENABLE);
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_postinstall(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
+
+ I915_WRITE(GEN8_MASTER_IRQ, GEN8_MASTER_IRQ_CONTROL);
POSTING_READ(GEN8_MASTER_IRQ);
return 0;
gen8_irq_reset(dev);
}
-static void vlv_display_irq_uninstall(struct drm_i915_private *dev_priv)
-{
- /* Interrupt setup is already guaranteed to be single-threaded, this is
- * just to make the assert_spin_locked check happy. */
- spin_lock_irq(&dev_priv->irq_lock);
- if (dev_priv->display_irqs_enabled)
- valleyview_display_irqs_uninstall(dev_priv);
- spin_unlock_irq(&dev_priv->irq_lock);
-
- vlv_display_irq_reset(dev_priv);
-
- dev_priv->irq_mask = ~0;
-}
-
static void valleyview_irq_uninstall(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
return;
I915_WRITE(VLV_MASTER_IER, 0);
+ POSTING_READ(VLV_MASTER_IER);
gen5_gt_irq_reset(dev);
I915_WRITE(HWSTAM, 0xffffffff);
- vlv_display_irq_uninstall(dev_priv);
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_reset(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
}
static void cherryview_irq_uninstall(struct drm_device *dev)
GEN5_IRQ_RESET(GEN8_PCU_);
- vlv_display_irq_uninstall(dev_priv);
+ spin_lock_irq(&dev_priv->irq_lock);
+ if (dev_priv->display_irqs_enabled)
+ vlv_display_irq_reset(dev_priv);
+ spin_unlock_irq(&dev_priv->irq_lock);
}
static void ironlake_irq_uninstall(struct drm_device *dev)
/* Consume port. Then clear IIR or we'll miss events */
if (I915_HAS_HOTPLUG(dev) &&
- iir & I915_DISPLAY_PORT_INTERRUPT)
- i9xx_hpd_irq_handler(dev);
+ iir & I915_DISPLAY_PORT_INTERRUPT) {
+ u32 hotplug_status = i9xx_hpd_irq_ack(dev_priv);
+ if (hotplug_status)
+ i9xx_hpd_irq_handler(dev, hotplug_status);
+ }
I915_WRITE(IIR, iir & ~flip_mask);
new_iir = I915_READ(IIR); /* Flush posted writes */
ret = IRQ_HANDLED;
/* Consume port. Then clear IIR or we'll miss events */
- if (iir & I915_DISPLAY_PORT_INTERRUPT)
- i9xx_hpd_irq_handler(dev);
+ if (iir & I915_DISPLAY_PORT_INTERRUPT) {
+ u32 hotplug_status = i9xx_hpd_irq_ack(dev_priv);
+ if (hotplug_status)
+ i9xx_hpd_irq_handler(dev, hotplug_status);
+ }
I915_WRITE(IIR, iir & ~flip_mask);
new_iir = I915_READ(IIR); /* Flush posted writes */
projects / deliverable / linux.git / blobdiff