From bd3d2252f94da51dda96a6e2ad6fdef5f2959811 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 13 Oct 2017 21:26:14 +0100 Subject: [PATCH] drm/i915: Rename obj->pin_display to obj->pin_global In the next patch, we want to extend use of the global pin counter for semi-permanent pinning of context/ring objects. Given that we plan to extend the usage to encompass a disparate set of objects, we want a name that reflects both and should entail less confusion. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/20171013202621.7276-2-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_debugfs.c | 12 ++++++------ drivers/gpu/drm/i915/i915_gem.c | 20 ++++++++++---------- drivers/gpu/drm/i915/i915_gem_object.h | 3 ++- drivers/gpu/drm/i915/i915_gem_userptr.c | 4 ++-- 4 files changed, 20 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 0bb6e01..fb9b343 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -83,7 +83,7 @@ static char get_active_flag(struct drm_i915_gem_object *obj) static char get_pin_flag(struct drm_i915_gem_object *obj) { - return obj->pin_display ? 'p' : ' '; + return obj->pin_global ? 'p' : ' '; } static char get_tiling_flag(struct drm_i915_gem_object *obj) @@ -180,8 +180,8 @@ describe_obj(struct seq_file *m, struct drm_i915_gem_object *obj) pin_count++; } seq_printf(m, " (pinned x %d)", pin_count); - if (obj->pin_display) - seq_printf(m, " (display)"); + if (obj->pin_global) + seq_printf(m, " (global)"); list_for_each_entry(vma, &obj->vma_list, obj_link) { if (!drm_mm_node_allocated(&vma->node)) continue; @@ -481,7 +481,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data) size += obj->base.size; ++count; - if (obj->pin_display) { + if (obj->pin_global) { dpy_size += obj->base.size; ++dpy_count; } @@ -512,7 +512,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data) huge_count, stringify_page_sizes(page_sizes, buf, sizeof(buf)), huge_size); - seq_printf(m, "%u display objects (pinned), %llu bytes\n", + seq_printf(m, "%u display objects (globally pinned), %llu bytes\n", dpy_count, dpy_size); seq_printf(m, "%llu [%llu] gtt total\n", @@ -579,7 +579,7 @@ static int i915_gem_gtt_info(struct seq_file *m, void *data) total_obj_size = total_gtt_size = count = 0; list_for_each_entry(obj, &dev_priv->mm.bound_list, global_link) { - if (show_pin_display_only && !obj->pin_display) + if (show_pin_display_only && !obj->pin_global) continue; seq_puts(m, " "); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0590717..1f66a61 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -56,7 +56,7 @@ static bool cpu_write_needs_clflush(struct drm_i915_gem_object *obj) if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE)) return true; - return obj->pin_display; + return obj->pin_global; /* currently in use by HW, keep flushed */ } static int @@ -3493,7 +3493,7 @@ static void __i915_gem_object_flush_for_display(struct drm_i915_gem_object *obj) void i915_gem_object_flush_if_display(struct drm_i915_gem_object *obj) { - if (!READ_ONCE(obj->pin_display)) + if (!READ_ONCE(obj->pin_global)) return; mutex_lock(&obj->base.dev->struct_mutex); @@ -3860,10 +3860,10 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, lockdep_assert_held(&obj->base.dev->struct_mutex); - /* Mark the pin_display early so that we account for the + /* Mark the global pin early so that we account for the * display coherency whilst setting up the cache domains. */ - obj->pin_display++; + obj->pin_global++; /* The display engine is not coherent with the LLC cache on gen6. As * a result, we make sure that the pinning that is about to occur is @@ -3879,7 +3879,7 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, I915_CACHE_WT : I915_CACHE_NONE); if (ret) { vma = ERR_PTR(ret); - goto err_unpin_display; + goto err_unpin_global; } /* As the user may map the buffer once pinned in the display plane @@ -3910,7 +3910,7 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, vma = i915_gem_object_ggtt_pin(obj, view, 0, alignment, flags); } if (IS_ERR(vma)) - goto err_unpin_display; + goto err_unpin_global; vma->display_alignment = max_t(u64, vma->display_alignment, alignment); @@ -3925,8 +3925,8 @@ i915_gem_object_pin_to_display_plane(struct drm_i915_gem_object *obj, return vma; -err_unpin_display: - obj->pin_display--; +err_unpin_global: + obj->pin_global--; return vma; } @@ -3935,10 +3935,10 @@ i915_gem_object_unpin_from_display_plane(struct i915_vma *vma) { lockdep_assert_held(&vma->vm->i915->drm.struct_mutex); - if (WARN_ON(vma->obj->pin_display == 0)) + if (WARN_ON(vma->obj->pin_global == 0)) return; - if (--vma->obj->pin_display == 0) + if (--vma->obj->pin_global == 0) vma->display_alignment = I915_GTT_MIN_ALIGNMENT; /* Bump the LRU to try and avoid premature eviction whilst flipping */ diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h index d67f1cb..72aa02f 100644 --- a/drivers/gpu/drm/i915/i915_gem_object.h +++ b/drivers/gpu/drm/i915/i915_gem_object.h @@ -161,7 +161,8 @@ struct drm_i915_gem_object { /** Count of VMA actually bound by this object */ unsigned int bind_count; unsigned int active_count; - unsigned int pin_display; + /** Count of how many global VMA are currently pinned for use by HW */ + unsigned int pin_global; struct { struct mutex lock; /* protects the pages and their use */ diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index 9afeb68..cdc9be7 100644 --- a/drivers/gpu/drm/i915/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/i915_gem_userptr.c @@ -83,10 +83,10 @@ static void cancel_userptr(struct work_struct *work) if (i915_gem_object_unbind(obj) == 0) __i915_gem_object_put_pages(obj, I915_MM_NORMAL); WARN_ONCE(i915_gem_object_has_pages(obj), - "Failed to release pages: bind_count=%d, pages_pin_count=%d, pin_display=%d\n", + "Failed to release pages: bind_count=%d, pages_pin_count=%d, pin_global=%d\n", obj->bind_count, atomic_read(&obj->mm.pages_pin_count), - obj->pin_display); + obj->pin_global); mutex_unlock(&obj->base.dev->struct_mutex); -- 2.7.4