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| author | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-10-15 11:18:26 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2019-10-15 11:18:26 +0300 |
| commit | fa41d6ee904266fa8739cafa6ec038c3a8e435b7 (patch) | |
| tree | 4d5439bafd38dc730838bb15e6a49e747793d4a7 /include/linux/vmalloc.h | |
| parent | 9cd20ef7803cc53a00c6eb7198b3d870ac7b3766 (diff) | |
| parent | 7ed093602e0e1b60a0fc074a9692687e7d2b723d (diff) | |
| download | cachepc-linux-fa41d6ee904266fa8739cafa6ec038c3a8e435b7.tar.gz cachepc-linux-fa41d6ee904266fa8739cafa6ec038c3a8e435b7.zip | |
Merge drm/drm-next into drm-intel-next-queued
Backmerging to pull in HDR DP code:
https://lists.freedesktop.org/archives/dri-devel/2019-September/236453.html
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'include/linux/vmalloc.h')
| -rw-r--r-- | include/linux/vmalloc.h | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 9b21d0047710..4e7809408073 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -18,6 +18,7 @@ struct notifier_block; /* in notifier.h */ #define VM_ALLOC 0x00000002 /* vmalloc() */ #define VM_MAP 0x00000004 /* vmap()ed pages */ #define VM_USERMAP 0x00000008 /* suitable for remap_vmalloc_range */ +#define VM_DMA_COHERENT 0x00000010 /* dma_alloc_coherent */ #define VM_UNINITIALIZED 0x00000020 /* vm_struct is not fully initialized */ #define VM_NO_GUARD 0x00000040 /* don't add guard page */ #define VM_KASAN 0x00000080 /* has allocated kasan shadow memory */ @@ -26,6 +27,7 @@ struct notifier_block; /* in notifier.h */ * vfree_atomic(). */ #define VM_FLUSH_RESET_PERMS 0x00000100 /* Reset direct map and flush TLB on unmap */ + /* bits [20..32] reserved for arch specific ioremap internals */ /* @@ -51,15 +53,21 @@ struct vmap_area { unsigned long va_start; unsigned long va_end; - /* - * Largest available free size in subtree. - */ - unsigned long subtree_max_size; - unsigned long flags; struct rb_node rb_node; /* address sorted rbtree */ struct list_head list; /* address sorted list */ - struct llist_node purge_list; /* "lazy purge" list */ - struct vm_struct *vm; + + /* + * The following three variables can be packed, because + * a vmap_area object is always one of the three states: + * 1) in "free" tree (root is vmap_area_root) + * 2) in "busy" tree (root is free_vmap_area_root) + * 3) in purge list (head is vmap_purge_list) + */ + union { + unsigned long subtree_max_size; /* in "free" tree */ + struct vm_struct *vm; /* in "busy" tree */ + struct llist_node purge_list; /* in purge list */ + }; }; /* |