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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.c134
1 files changed, 76 insertions, 58 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 2479be001e40..85785a8844ed 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -171,10 +171,10 @@ void intel_enable_asle (struct drm_device *dev)
ironlake_enable_display_irq(dev_priv, DE_GSE);
else {
i915_enable_pipestat(dev_priv, 1,
- I915_LEGACY_BLC_EVENT_ENABLE);
+ PIPE_LEGACY_BLC_EVENT_ENABLE);
if (IS_I965G(dev))
i915_enable_pipestat(dev_priv, 0,
- I915_LEGACY_BLC_EVENT_ENABLE);
+ PIPE_LEGACY_BLC_EVENT_ENABLE);
}
}
@@ -842,7 +842,6 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
u32 iir, new_iir;
u32 pipea_stats, pipeb_stats;
u32 vblank_status;
- u32 vblank_enable;
int vblank = 0;
unsigned long irqflags;
int irq_received;
@@ -856,13 +855,10 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
iir = I915_READ(IIR);
- if (IS_I965G(dev)) {
- vblank_status = I915_START_VBLANK_INTERRUPT_STATUS;
- vblank_enable = PIPE_START_VBLANK_INTERRUPT_ENABLE;
- } else {
- vblank_status = I915_VBLANK_INTERRUPT_STATUS;
- vblank_enable = I915_VBLANK_INTERRUPT_ENABLE;
- }
+ if (IS_I965G(dev))
+ vblank_status = PIPE_START_VBLANK_INTERRUPT_STATUS;
+ else
+ vblank_status = PIPE_VBLANK_INTERRUPT_STATUS;
for (;;) {
irq_received = iir != 0;
@@ -940,26 +936,34 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
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)
+ if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) {
intel_prepare_page_flip(dev, 0);
+ if (dev_priv->flip_pending_is_done)
+ intel_finish_page_flip_plane(dev, 0);
+ }
- if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT)
+ if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) {
intel_prepare_page_flip(dev, 1);
+ if (dev_priv->flip_pending_is_done)
+ intel_finish_page_flip_plane(dev, 1);
+ }
if (pipea_stats & vblank_status) {
vblank++;
drm_handle_vblank(dev, 0);
- intel_finish_page_flip(dev, 0);
+ if (!dev_priv->flip_pending_is_done)
+ intel_finish_page_flip(dev, 0);
}
if (pipeb_stats & vblank_status) {
vblank++;
drm_handle_vblank(dev, 1);
- intel_finish_page_flip(dev, 1);
+ if (!dev_priv->flip_pending_is_done)
+ intel_finish_page_flip(dev, 1);
}
- if ((pipea_stats & I915_LEGACY_BLC_EVENT_STATUS) ||
- (pipeb_stats & I915_LEGACY_BLC_EVENT_STATUS) ||
+ if ((pipea_stats & PIPE_LEGACY_BLC_EVENT_STATUS) ||
+ (pipeb_stats & PIPE_LEGACY_BLC_EVENT_STATUS) ||
(iir & I915_ASLE_INTERRUPT))
opregion_asle_intr(dev);
@@ -1225,16 +1229,21 @@ void i915_hangcheck_elapsed(unsigned long data)
{
struct drm_device *dev = (struct drm_device *)data;
drm_i915_private_t *dev_priv = dev->dev_private;
- uint32_t acthd;
+ uint32_t acthd, instdone, instdone1;
/* No reset support on this chip yet. */
if (IS_GEN6(dev))
return;
- if (!IS_I965G(dev))
+ if (!IS_I965G(dev)) {
acthd = I915_READ(ACTHD);
- else
+ instdone = I915_READ(INSTDONE);
+ instdone1 = 0;
+ } else {
acthd = I915_READ(ACTHD_I965);
+ instdone = I915_READ(INSTDONE_I965);
+ instdone1 = I915_READ(INSTDONE1);
+ }
/* If all work is done then ACTHD clearly hasn't advanced. */
if (list_empty(&dev_priv->render_ring.request_list) ||
@@ -1245,21 +1254,24 @@ void i915_hangcheck_elapsed(unsigned long data)
return;
}
- if (dev_priv->last_acthd == acthd && dev_priv->hangcheck_count > 0) {
- DRM_ERROR("Hangcheck timer elapsed... GPU hung\n");
- i915_handle_error(dev, true);
- return;
- }
+ if (dev_priv->last_acthd == acthd &&
+ dev_priv->last_instdone == instdone &&
+ dev_priv->last_instdone1 == instdone1) {
+ if (dev_priv->hangcheck_count++ > 1) {
+ DRM_ERROR("Hangcheck timer elapsed... GPU hung\n");
+ i915_handle_error(dev, true);
+ return;
+ }
+ } else {
+ dev_priv->hangcheck_count = 0;
+
+ dev_priv->last_acthd = acthd;
+ dev_priv->last_instdone = instdone;
+ dev_priv->last_instdone1 = instdone1;
+ }
/* Reset timer case chip hangs without another request being added */
mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD);
-
- if (acthd != dev_priv->last_acthd)
- dev_priv->hangcheck_count = 0;
- else
- dev_priv->hangcheck_count++;
-
- dev_priv->last_acthd = acthd;
}
/* drm_dma.h hooks
@@ -1387,29 +1399,10 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
dev_priv->pipestat[1] = 0;
if (I915_HAS_HOTPLUG(dev)) {
- u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
-
- /* Note HDMI and DP share bits */
- if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS)
- hotplug_en |= HDMIB_HOTPLUG_INT_EN;
- if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS)
- hotplug_en |= HDMIC_HOTPLUG_INT_EN;
- if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
- hotplug_en |= HDMID_HOTPLUG_INT_EN;
- if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
- hotplug_en |= SDVOC_HOTPLUG_INT_EN;
- if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
- hotplug_en |= SDVOB_HOTPLUG_INT_EN;
- if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS)
- hotplug_en |= CRT_HOTPLUG_INT_EN;
- /* Ignore TV since it's buggy */
-
- I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
-
/* Enable in IER... */
enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
/* and unmask in IMR */
- i915_enable_irq(dev_priv, I915_DISPLAY_PORT_INTERRUPT);
+ dev_priv->irq_mask_reg &= ~I915_DISPLAY_PORT_INTERRUPT;
}
/*
@@ -1427,16 +1420,41 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
}
I915_WRITE(EMR, error_mask);
- /* Disable pipe interrupt enables, clear pending pipe status */
- I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff);
- I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff);
- /* Clear pending interrupt status */
- I915_WRITE(IIR, I915_READ(IIR));
-
- I915_WRITE(IER, enable_mask);
I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ I915_WRITE(IER, enable_mask);
(void) I915_READ(IER);
+ if (I915_HAS_HOTPLUG(dev)) {
+ u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
+
+ /* Note HDMI and DP share bits */
+ if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS)
+ hotplug_en |= HDMIB_HOTPLUG_INT_EN;
+ if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS)
+ hotplug_en |= HDMIC_HOTPLUG_INT_EN;
+ if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
+ hotplug_en |= HDMID_HOTPLUG_INT_EN;
+ if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
+ hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+ if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
+ hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+ if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) {
+ hotplug_en |= CRT_HOTPLUG_INT_EN;
+
+ /* Programming the CRT detection parameters tends
+ to generate a spurious hotplug event about three
+ seconds later. So just do it once.
+ */
+ if (IS_G4X(dev))
+ hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+ hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
+ }
+
+ /* Ignore TV since it's buggy */
+
+ I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+ }
+
opregion_enable_asle(dev);
return 0;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.