From 0cf289bd5de3f26d28781d81650e5bf022702a7e Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 13 Jun 2019 08:32:54 +0100 Subject: drm/i915: Move fence register tracking from i915->mm to ggtt As the fence registers only apply to regions inside the GGTT is makes more sense that we track these as part of the i915_ggtt and not the general mm. In the next patch, we will then pull the register locking underneath the i915_ggtt.mutex. Signed-off-by: Chris Wilson Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20190613073254.24048-1-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_debugfs.c | 42 +++++++++++++++++++------------------ 1 file changed, 22 insertions(+), 20 deletions(-) (limited to 'drivers/gpu/drm/i915/i915_debugfs.c') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 026fb46020f6..323863504111 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -143,8 +143,6 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) unsigned int frontbuffer_bits; int pin_count = 0; - lockdep_assert_held(&obj->base.dev->struct_mutex); - seq_printf(m, "%pK: %c%c%c%c%c %8zdKiB %02x %02x %s%s%s", &obj->base, get_active_flag(obj), @@ -160,17 +158,17 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) obj->mm.madv == I915_MADV_DONTNEED ? " purgeable" : ""); if (obj->base.name) seq_printf(m, " (name: %d)", obj->base.name); - list_for_each_entry(vma, &obj->vma.list, obj_link) { - if (i915_vma_is_pinned(vma)) - pin_count++; - } - seq_printf(m, " (pinned x %d)", pin_count); - if (obj->pin_global) - seq_printf(m, " (global)"); + + spin_lock(&obj->vma.lock); list_for_each_entry(vma, &obj->vma.list, obj_link) { if (!drm_mm_node_allocated(&vma->node)) continue; + spin_unlock(&obj->vma.lock); + + if (i915_vma_is_pinned(vma)) + pin_count++; + seq_printf(m, " (%sgtt offset: %08llx, size: %08llx, pages: %s", i915_vma_is_ggtt(vma) ? "g" : "pp", vma->node.start, vma->node.size, @@ -221,9 +219,16 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) vma->fence->id, i915_active_request_isset(&vma->last_fence) ? "*" : ""); seq_puts(m, ")"); + + spin_lock(&obj->vma.lock); } + spin_unlock(&obj->vma.lock); + + seq_printf(m, " (pinned x %d)", pin_count); if (obj->stolen) seq_printf(m, " (stolen: %08llx)", obj->stolen->start); + if (obj->pin_global) + seq_printf(m, " (global)"); engine = i915_gem_object_last_write_engine(obj); if (engine) @@ -698,28 +703,25 @@ static int i915_interrupt_info(struct seq_file *m, void *data) static int i915_gem_fence_regs_info(struct seq_file *m, void *data) { - struct drm_i915_private *dev_priv = node_to_i915(m->private); - struct drm_device *dev = &dev_priv->drm; - int i, ret; + struct drm_i915_private *i915 = node_to_i915(m->private); + unsigned int i; - ret = mutex_lock_interruptible(&dev->struct_mutex); - if (ret) - return ret; + seq_printf(m, "Total fences = %d\n", i915->ggtt.num_fences); - seq_printf(m, "Total fences = %d\n", dev_priv->num_fence_regs); - for (i = 0; i < dev_priv->num_fence_regs; i++) { - struct i915_vma *vma = dev_priv->fence_regs[i].vma; + rcu_read_lock(); + for (i = 0; i < i915->ggtt.num_fences; i++) { + struct i915_vma *vma = i915->ggtt.fence_regs[i].vma; seq_printf(m, "Fence %d, pin count = %d, object = ", - i, dev_priv->fence_regs[i].pin_count); + i, i915->ggtt.fence_regs[i].pin_count); if (!vma) seq_puts(m, "unused"); else describe_obj(m, vma->obj); seq_putc(m, '\n'); } + rcu_read_unlock(); - mutex_unlock(&dev->struct_mutex); return 0; } -- cgit v1.2.3