X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Fi915%2Fi915_irq.c;h=bfbdad92d73d1f56e74e6340c0dbf647a51211fd;hb=23010e43b353c2cdc9725cbedc7e364708039bf7;hp=1733eea87840d1d3ef2533e05262d7a7e0c73fc6;hpb=b01f2c3a4a37d09a47ad73ccbb46d554d21cfeb0;p=safe%2Fjmp%2Flinux-2.6 diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 1733eea..bfbdad9 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -166,7 +166,7 @@ void intel_enable_asle (struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - if (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) ironlake_enable_display_irq(dev_priv, DE_GSE); else i915_enable_pipestat(dev_priv, 1, @@ -269,12 +269,62 @@ static void i915_hotplug_work_func(struct work_struct *work) drm_sysfs_hotplug_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); + busy_up = I915_READ(RCPREVBSYTUPAVG); + busy_down = I915_READ(RCPREVBSYTDNAVG); + max_avg = I915_READ(RCBMAXAVG); + min_avg = I915_READ(RCBMINAVG); + + /* Handle RCS change request from hw */ + if (busy_up > max_avg) { + if (dev_priv->cur_delay != dev_priv->max_delay) + new_delay = dev_priv->cur_delay - 1; + if (new_delay < dev_priv->max_delay) + new_delay = dev_priv->max_delay; + } else if (busy_down < min_avg) { + if (dev_priv->cur_delay != dev_priv->min_delay) + new_delay = dev_priv->cur_delay + 1; + if (new_delay > dev_priv->min_delay) + 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"); + + return; +} + irqreturn_t ironlake_irq_handler(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; int ret = IRQ_NONE; u32 de_iir, gt_iir, de_ier, pch_iir; - u32 new_de_iir, new_gt_iir, new_pch_iir; struct drm_i915_master_private *master_priv; /* disable master interrupt before clearing iir */ @@ -286,49 +336,63 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev) gt_iir = I915_READ(GTIIR); pch_iir = I915_READ(SDEIIR); - for (;;) { - if (de_iir == 0 && gt_iir == 0 && pch_iir == 0) - break; + if (de_iir == 0 && gt_iir == 0 && pch_iir == 0) + goto done; - ret = IRQ_HANDLED; + ret = IRQ_HANDLED; - /* should clear PCH hotplug event before clear CPU irq */ - I915_WRITE(SDEIIR, pch_iir); - new_pch_iir = I915_READ(SDEIIR); + if (dev->primary->master) { + master_priv = dev->primary->master->driver_priv; + if (master_priv->sarea_priv) + master_priv->sarea_priv->last_dispatch = + READ_BREADCRUMB(dev_priv); + } - I915_WRITE(DEIIR, de_iir); - new_de_iir = I915_READ(DEIIR); - I915_WRITE(GTIIR, gt_iir); - new_gt_iir = I915_READ(GTIIR); + if (gt_iir & GT_USER_INTERRUPT) { + u32 seqno = i915_get_gem_seqno(dev); + dev_priv->mm.irq_gem_seqno = seqno; + trace_i915_gem_request_complete(dev, seqno); + DRM_WAKEUP(&dev_priv->irq_queue); + dev_priv->hangcheck_count = 0; + mod_timer(&dev_priv->hangcheck_timer, jiffies + DRM_I915_HANGCHECK_PERIOD); + } - if (dev->primary->master) { - master_priv = dev->primary->master->driver_priv; - if (master_priv->sarea_priv) - master_priv->sarea_priv->last_dispatch = - READ_BREADCRUMB(dev_priv); - } + if (de_iir & DE_GSE) + ironlake_opregion_gse_intr(dev); - if (gt_iir & GT_USER_INTERRUPT) { - u32 seqno = i915_get_gem_seqno(dev); - dev_priv->mm.irq_gem_seqno = seqno; - trace_i915_gem_request_complete(dev, seqno); - DRM_WAKEUP(&dev_priv->irq_queue); - } + if (de_iir & DE_PLANEA_FLIP_DONE) { + intel_prepare_page_flip(dev, 0); + intel_finish_page_flip(dev, 0); + } + + if (de_iir & DE_PLANEB_FLIP_DONE) { + intel_prepare_page_flip(dev, 1); + intel_finish_page_flip(dev, 1); + } - if (de_iir & DE_GSE) - ironlake_opregion_gse_intr(dev); + if (de_iir & DE_PIPEA_VBLANK) + drm_handle_vblank(dev, 0); - /* check event from PCH */ - if ((de_iir & DE_PCH_EVENT) && - (pch_iir & SDE_HOTPLUG_MASK)) { - queue_work(dev_priv->wq, &dev_priv->hotplug_work); - } + if (de_iir & DE_PIPEB_VBLANK) + drm_handle_vblank(dev, 1); + + /* check event from PCH */ + if ((de_iir & DE_PCH_EVENT) && + (pch_iir & SDE_HOTPLUG_MASK)) { + queue_work(dev_priv->wq, &dev_priv->hotplug_work); + } - de_iir = new_de_iir; - gt_iir = new_gt_iir; - pch_iir = new_pch_iir; + if (de_iir & DE_PCU_EVENT) { + I915_WRITE(MEMINTRSTS, I915_READ(MEMINTRSTS)); + i915_handle_rps_change(dev); } + /* should clear PCH hotplug event before clear CPU irq */ + I915_WRITE(SDEIIR, pch_iir); + I915_WRITE(GTIIR, gt_iir); + I915_WRITE(DEIIR, de_iir); + +done: I915_WRITE(DEIER, de_ier); (void)I915_READ(DEIER); @@ -368,6 +432,121 @@ static void i915_error_work_func(struct work_struct *work) } } +static struct drm_i915_error_object * +i915_error_object_create(struct drm_device *dev, + struct drm_gem_object *src) +{ + struct drm_i915_error_object *dst; + struct drm_i915_gem_object *src_priv; + int page, page_count; + + if (src == NULL) + return NULL; + + src_priv = to_intel_bo(src); + if (src_priv->pages == NULL) + return NULL; + + page_count = src->size / PAGE_SIZE; + + dst = kmalloc(sizeof(*dst) + page_count * sizeof (u32 *), GFP_ATOMIC); + if (dst == NULL) + return NULL; + + for (page = 0; page < page_count; page++) { + void *s, *d = kmalloc(PAGE_SIZE, GFP_ATOMIC); + if (d == NULL) + goto unwind; + s = kmap_atomic(src_priv->pages[page], KM_USER0); + memcpy(d, s, PAGE_SIZE); + kunmap_atomic(s, KM_USER0); + dst->pages[page] = d; + } + dst->page_count = page_count; + dst->gtt_offset = src_priv->gtt_offset; + + return dst; + +unwind: + while (page--) + kfree(dst->pages[page]); + kfree(dst); + return NULL; +} + +static void +i915_error_object_free(struct drm_i915_error_object *obj) +{ + int page; + + if (obj == NULL) + return; + + for (page = 0; page < obj->page_count; page++) + kfree(obj->pages[page]); + + kfree(obj); +} + +static void +i915_error_state_free(struct drm_device *dev, + struct drm_i915_error_state *error) +{ + i915_error_object_free(error->batchbuffer[0]); + i915_error_object_free(error->batchbuffer[1]); + i915_error_object_free(error->ringbuffer); + kfree(error->active_bo); + kfree(error); +} + +static u32 +i915_get_bbaddr(struct drm_device *dev, u32 *ring) +{ + u32 cmd; + + if (IS_I830(dev) || IS_845G(dev)) + cmd = MI_BATCH_BUFFER; + else if (IS_I965G(dev)) + cmd = (MI_BATCH_BUFFER_START | (2 << 6) | + MI_BATCH_NON_SECURE_I965); + else + cmd = (MI_BATCH_BUFFER_START | (2 << 6)); + + return ring[0] == cmd ? ring[1] : 0; +} + +static u32 +i915_ringbuffer_last_batch(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 head, bbaddr; + u32 *ring; + + /* Locate the current position in the ringbuffer and walk back + * to find the most recently dispatched batch buffer. + */ + bbaddr = 0; + head = I915_READ(PRB0_HEAD) & HEAD_ADDR; + ring = (u32 *)(dev_priv->ring.virtual_start + head); + + while (--ring >= (u32 *)dev_priv->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) { + bbaddr = i915_get_bbaddr(dev, ring); + if (bbaddr) + break; + } + } + + return bbaddr; +} + /** * i915_capture_error_state - capture an error record for later analysis * @dev: drm device @@ -380,19 +559,26 @@ static void i915_error_work_func(struct work_struct *work) static void i915_capture_error_state(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_gem_object *obj_priv; struct drm_i915_error_state *error; + struct drm_gem_object *batchbuffer[2]; unsigned long flags; + u32 bbaddr; + int count; spin_lock_irqsave(&dev_priv->error_lock, flags); - if (dev_priv->first_error) - goto out; + error = dev_priv->first_error; + spin_unlock_irqrestore(&dev_priv->error_lock, flags); + if (error) + return; error = kmalloc(sizeof(*error), GFP_ATOMIC); if (!error) { - DRM_DEBUG_DRIVER("out ot memory, not capturing error state\n"); - goto out; + DRM_DEBUG_DRIVER("out of memory, not capturing error state\n"); + return; } + error->seqno = i915_get_gem_seqno(dev); error->eir = I915_READ(EIR); error->pgtbl_er = I915_READ(PGTBL_ER); error->pipeastat = I915_READ(PIPEASTAT); @@ -403,6 +589,7 @@ static void i915_capture_error_state(struct drm_device *dev) error->ipehr = I915_READ(IPEHR); error->instdone = I915_READ(INSTDONE); error->acthd = I915_READ(ACTHD); + error->bbaddr = 0; } else { error->ipeir = I915_READ(IPEIR_I965); error->ipehr = I915_READ(IPEHR_I965); @@ -410,14 +597,101 @@ static void i915_capture_error_state(struct drm_device *dev) error->instps = I915_READ(INSTPS); error->instdone1 = I915_READ(INSTDONE1); error->acthd = I915_READ(ACTHD_I965); + error->bbaddr = I915_READ64(BB_ADDR); } - do_gettimeofday(&error->time); + bbaddr = i915_ringbuffer_last_batch(dev); + + /* Grab the current batchbuffer, most likely to have crashed. */ + 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; + + if (batchbuffer[0] == NULL && + bbaddr >= obj_priv->gtt_offset && + bbaddr < obj_priv->gtt_offset + obj->size) + batchbuffer[0] = obj; + + if (batchbuffer[1] == NULL && + error->acthd >= obj_priv->gtt_offset && + error->acthd < obj_priv->gtt_offset + obj->size && + batchbuffer[0] != obj) + batchbuffer[1] = obj; - dev_priv->first_error = error; + count++; + } + + /* We need to copy these to an anonymous buffer as the simplest + * method to avoid being overwritten by userpace. + */ + error->batchbuffer[0] = i915_error_object_create(dev, batchbuffer[0]); + 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); + + /* Record buffers on the active list. */ + error->active_bo = NULL; + error->active_bo_count = 0; + + if (count) + error->active_bo = kmalloc(sizeof(*error->active_bo)*count, + GFP_ATOMIC); + + 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; + + error->active_bo[i].size = obj->size; + error->active_bo[i].name = obj->name; + error->active_bo[i].seqno = obj_priv->last_rendering_seqno; + error->active_bo[i].gtt_offset = obj_priv->gtt_offset; + error->active_bo[i].read_domains = obj->read_domains; + error->active_bo[i].write_domain = obj->write_domain; + error->active_bo[i].fence_reg = obj_priv->fence_reg; + error->active_bo[i].pinned = 0; + if (obj_priv->pin_count > 0) + error->active_bo[i].pinned = 1; + if (obj_priv->user_pin_count > 0) + error->active_bo[i].pinned = -1; + error->active_bo[i].tiling = obj_priv->tiling_mode; + error->active_bo[i].dirty = obj_priv->dirty; + error->active_bo[i].purgeable = obj_priv->madv != I915_MADV_WILLNEED; + + if (++i == count) + break; + } + error->active_bo_count = i; + } + + do_gettimeofday(&error->time); -out: + spin_lock_irqsave(&dev_priv->error_lock, flags); + if (dev_priv->first_error == NULL) { + dev_priv->first_error = error; + error = NULL; + } spin_unlock_irqrestore(&dev_priv->error_lock, flags); + + if (error) + i915_error_state_free(dev, error); +} + +void i915_destroy_error_state(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_error_state *error; + + spin_lock(&dev_priv->error_lock); + error = dev_priv->first_error; + dev_priv->first_error = NULL; + spin_unlock(&dev_priv->error_lock); + + if (error) + i915_error_state_free(dev, error); } /** @@ -568,7 +842,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) atomic_inc(&dev_priv->irq_received); - if (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) return ironlake_irq_handler(dev); iir = I915_READ(IIR); @@ -729,7 +1003,7 @@ void i915_user_irq_get(struct drm_device *dev) spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags); if (dev->irq_enabled && (++dev_priv->user_irq_refcount == 1)) { - if (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) ironlake_enable_graphics_irq(dev_priv, GT_USER_INTERRUPT); else i915_enable_irq(dev_priv, I915_USER_INTERRUPT); @@ -745,7 +1019,7 @@ void i915_user_irq_put(struct drm_device *dev) 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 (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) ironlake_disable_graphics_irq(dev_priv, GT_USER_INTERRUPT); else i915_disable_irq(dev_priv, I915_USER_INTERRUPT); @@ -852,11 +1126,11 @@ int i915_enable_vblank(struct drm_device *dev, int pipe) if (!(pipeconf & PIPEACONF_ENABLE)) return -EINVAL; - if (IS_IRONLAKE(dev)) - return 0; - spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags); - if (IS_I965G(dev)) + if (HAS_PCH_SPLIT(dev)) + ironlake_enable_display_irq(dev_priv, (pipe == 0) ? + DE_PIPEA_VBLANK: DE_PIPEB_VBLANK); + else if (IS_I965G(dev)) i915_enable_pipestat(dev_priv, pipe, PIPE_START_VBLANK_INTERRUPT_ENABLE); else @@ -874,13 +1148,14 @@ void i915_disable_vblank(struct drm_device *dev, int pipe) drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; unsigned long irqflags; - if (IS_IRONLAKE(dev)) - return; - spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags); - i915_disable_pipestat(dev_priv, pipe, - PIPE_VBLANK_INTERRUPT_ENABLE | - PIPE_START_VBLANK_INTERRUPT_ENABLE); + if (HAS_PCH_SPLIT(dev)) + ironlake_disable_display_irq(dev_priv, (pipe == 0) ? + DE_PIPEA_VBLANK: DE_PIPEB_VBLANK); + else + i915_disable_pipestat(dev_priv, pipe, + PIPE_VBLANK_INTERRUPT_ENABLE | + PIPE_START_VBLANK_INTERRUPT_ENABLE); spin_unlock_irqrestore(&dev_priv->user_irq_lock, irqflags); } @@ -888,7 +1163,7 @@ void i915_enable_interrupt (struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - if (!IS_IRONLAKE(dev)) + if (!HAS_PCH_SPLIT(dev)) opregion_enable_asle(dev); dev_priv->irq_enabled = 1; } @@ -964,7 +1239,11 @@ 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; - + + /* No reset support on this chip yet. */ + if (IS_GEN6(dev)) + return; + if (!IS_I965G(dev)) acthd = I915_READ(ACTHD); else @@ -1023,13 +1302,14 @@ static int ironlake_irq_postinstall(struct drm_device *dev) { drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; /* enable kind of interrupts always enabled */ - u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT; + 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 hotplug_mask = SDE_CRT_HOTPLUG | SDE_PORTB_HOTPLUG | SDE_PORTC_HOTPLUG | SDE_PORTD_HOTPLUG; dev_priv->irq_mask_reg = ~display_mask; - dev_priv->de_irq_enable_reg = display_mask; + dev_priv->de_irq_enable_reg = display_mask | DE_PIPEA_VBLANK | DE_PIPEB_VBLANK; /* should always can generate irq */ I915_WRITE(DEIIR, I915_READ(DEIIR)); @@ -1054,6 +1334,13 @@ static int ironlake_irq_postinstall(struct drm_device *dev) I915_WRITE(SDEIER, dev_priv->pch_irq_enable_reg); (void) I915_READ(SDEIER); + if (IS_IRONLAKE_M(dev)) { + /* Clear & enable PCU event interrupts */ + I915_WRITE(DEIIR, DE_PCU_EVENT); + I915_WRITE(DEIER, I915_READ(DEIER) | DE_PCU_EVENT); + ironlake_enable_display_irq(dev_priv, DE_PCU_EVENT); + } + return 0; } @@ -1066,7 +1353,7 @@ void i915_driver_irq_preinstall(struct drm_device * dev) INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); INIT_WORK(&dev_priv->error_work, i915_error_work_func); - if (IS_IRONLAKE(dev)) { + if (HAS_PCH_SPLIT(dev)) { ironlake_irq_preinstall(dev); return; } @@ -1098,7 +1385,7 @@ int i915_driver_irq_postinstall(struct drm_device *dev) dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B; - if (IS_IRONLAKE(dev)) + if (HAS_PCH_SPLIT(dev)) return ironlake_irq_postinstall(dev); /* Unmask the interrupts that we always want on. */ @@ -1186,7 +1473,7 @@ void i915_driver_irq_uninstall(struct drm_device * dev) dev_priv->vblank_pipe = 0; - if (IS_IRONLAKE(dev)) { + if (HAS_PCH_SPLIT(dev)) { ironlake_irq_uninstall(dev); return; }