diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
-rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 298 |
1 files changed, 152 insertions, 146 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 5388354da0d..dba53d4b9fb 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -27,6 +27,7 @@ */ #include <linux/sysrq.h> +#include <linux/slab.h> #include "drmP.h" #include "drm.h" #include "i915_drm.h" @@ -52,7 +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) @@ -73,7 +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) { @@ -114,7 +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) { @@ -168,9 +169,13 @@ void intel_enable_asle (struct drm_device *dev) if (HAS_PCH_SPLIT(dev)) ironlake_enable_display_irq(dev_priv, DE_GSE); - else + else { i915_enable_pipestat(dev_priv, 1, I915_LEGACY_BLC_EVENT_ENABLE); + if (IS_I965G(dev)) + i915_enable_pipestat(dev_priv, 0, + I915_LEGACY_BLC_EVENT_ENABLE); + } } /** @@ -255,28 +260,27 @@ static void i915_hotplug_work_func(struct work_struct *work) hotplug_work); struct drm_device *dev = dev_priv->dev; struct drm_mode_config *mode_config = &dev->mode_config; - struct drm_connector *connector; + struct drm_encoder *encoder; - if (mode_config->num_connector) { - list_for_each_entry(connector, &mode_config->connector_list, head) { - struct intel_output *intel_output = to_intel_output(connector); + if (mode_config->num_encoder) { + list_for_each_entry(encoder, &mode_config->encoder_list, head) { + struct intel_encoder *intel_encoder = enc_to_intel_encoder(encoder); - if (intel_output->hot_plug) - (*intel_output->hot_plug) (intel_output); + if (intel_encoder->hot_plug) + (*intel_encoder->hot_plug) (intel_encoder); } } /* Just fire off a uevent and let userspace tell us what to do */ - drm_sysfs_hotplug_event(dev); + drm_helper_hpd_irq_event(dev); } 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); @@ -295,27 +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; } @@ -326,6 +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); @@ -348,14 +334,17 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev) READ_BREADCRUMB(dev_priv); } - if (gt_iir & GT_USER_INTERRUPT) { - u32 seqno = i915_get_gem_seqno(dev); - dev_priv->mm.irq_gem_seqno = seqno; + if (gt_iir & GT_PIPE_NOTIFY) { + 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); @@ -383,7 +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); } @@ -443,7 +432,7 @@ i915_error_object_create(struct drm_device *dev, if (src == NULL) return NULL; - src_priv = src->driver_private; + src_priv = to_intel_bo(src); if (src_priv->pages == NULL) return NULL; @@ -455,11 +444,15 @@ i915_error_object_create(struct drm_device *dev, for (page = 0; page < page_count; page++) { void *s, *d = kmalloc(PAGE_SIZE, GFP_ATOMIC); + unsigned long flags; + if (d == NULL) goto unwind; - s = kmap_atomic(src_priv->pages[page], KM_USER0); + local_irq_save(flags); + s = kmap_atomic(src_priv->pages[page], KM_IRQ0); memcpy(d, s, PAGE_SIZE); - kunmap_atomic(s, KM_USER0); + kunmap_atomic(s, KM_IRQ0); + local_irq_restore(flags); dst->pages[page] = d; } dst->page_count = page_count; @@ -527,17 +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; @@ -578,7 +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); @@ -606,8 +600,10 @@ 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) { - struct drm_gem_object *obj = obj_priv->obj; + 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 && bbaddr >= obj_priv->gtt_offset && @@ -630,7 +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; @@ -642,8 +639,9 @@ 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) { - struct drm_gem_object *obj = obj_priv->obj; + 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; error->active_bo[i].name = obj->name; @@ -694,24 +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); @@ -757,6 +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); @@ -813,6 +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); @@ -820,7 +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); @@ -839,6 +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); @@ -919,33 +928,46 @@ 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 (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) + 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); + 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 ((pipeb_stats & I915_LEGACY_BLC_EVENT_STATUS) || + if ((pipea_stats & I915_LEGACY_BLC_EVENT_STATUS) || + (pipeb_stats & I915_LEGACY_BLC_EVENT_STATUS) || (iir & I915_ASLE_INTERRUPT)) opregion_asle_intr(dev); @@ -974,7 +996,6 @@ 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); @@ -996,43 +1017,13 @@ 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_USER_INTERRUPT); - 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_USER_INTERRUPT); - 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; } @@ -1042,6 +1033,7 @@ 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)); @@ -1055,10 +1047,10 @@ 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", @@ -1077,7 +1069,7 @@ 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; } @@ -1223,9 +1215,12 @@ 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); } /** @@ -1250,8 +1245,10 @@ 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; } @@ -1304,7 +1301,7 @@ 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_USER_INTERRUPT; + 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; @@ -1318,7 +1315,7 @@ 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)); @@ -1381,7 +1378,10 @@ 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; @@ -1395,29 +1395,10 @@ 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; } /* @@ -1435,16 +1416,41 @@ 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; |