Update to v4.15 kernel headers.

Test: Compiles, boots bullhead/hikey960.
Change-Id: I118beb8b6cac0881b1270f9bf6981959297a41a8
diff --git a/libc/kernel/uapi/drm/amdgpu_drm.h b/libc/kernel/uapi/drm/amdgpu_drm.h
index 6ae9c9c..1cdae16 100644
--- a/libc/kernel/uapi/drm/amdgpu_drm.h
+++ b/libc/kernel/uapi/drm/amdgpu_drm.h
@@ -35,6 +35,8 @@
 #define DRM_AMDGPU_GEM_USERPTR 0x11
 #define DRM_AMDGPU_WAIT_FENCES 0x12
 #define DRM_AMDGPU_VM 0x13
+#define DRM_AMDGPU_FENCE_TO_HANDLE 0x14
+#define DRM_AMDGPU_SCHED 0x15
 #define DRM_IOCTL_AMDGPU_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create)
 #define DRM_IOCTL_AMDGPU_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap)
 #define DRM_IOCTL_AMDGPU_CTX DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_CTX, union drm_amdgpu_ctx)
@@ -49,6 +51,8 @@
 #define DRM_IOCTL_AMDGPU_GEM_USERPTR DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_USERPTR, struct drm_amdgpu_gem_userptr)
 #define DRM_IOCTL_AMDGPU_WAIT_FENCES DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_WAIT_FENCES, union drm_amdgpu_wait_fences)
 #define DRM_IOCTL_AMDGPU_VM DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_VM, union drm_amdgpu_vm)
+#define DRM_IOCTL_AMDGPU_FENCE_TO_HANDLE DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_FENCE_TO_HANDLE, union drm_amdgpu_fence_to_handle)
+#define DRM_IOCTL_AMDGPU_SCHED DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_SCHED, union drm_amdgpu_sched)
 #define AMDGPU_GEM_DOMAIN_CPU 0x1
 #define AMDGPU_GEM_DOMAIN_GTT 0x2
 #define AMDGPU_GEM_DOMAIN_VRAM 0x4
@@ -61,6 +65,8 @@
 #define AMDGPU_GEM_CREATE_VRAM_CLEARED (1 << 3)
 #define AMDGPU_GEM_CREATE_SHADOW (1 << 4)
 #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS (1 << 5)
+#define AMDGPU_GEM_CREATE_VM_ALWAYS_VALID (1 << 6)
+#define AMDGPU_GEM_CREATE_EXPLICIT_SYNC (1 << 7)
 struct drm_amdgpu_gem_create_in {
   __u64 bo_size;
   __u64 alignment;
@@ -104,11 +110,17 @@
 #define AMDGPU_CTX_GUILTY_RESET 1
 #define AMDGPU_CTX_INNOCENT_RESET 2
 #define AMDGPU_CTX_UNKNOWN_RESET 3
+#define AMDGPU_CTX_PRIORITY_UNSET - 2048
+#define AMDGPU_CTX_PRIORITY_VERY_LOW - 1023
+#define AMDGPU_CTX_PRIORITY_LOW - 512
+#define AMDGPU_CTX_PRIORITY_NORMAL 0
+#define AMDGPU_CTX_PRIORITY_HIGH 512
+#define AMDGPU_CTX_PRIORITY_VERY_HIGH 1023
 struct drm_amdgpu_ctx_in {
   __u32 op;
   __u32 flags;
   __u32 ctx_id;
-  __u32 _pad;
+  __s32 priority;
 };
 union drm_amdgpu_ctx_out {
   struct {
@@ -138,6 +150,16 @@
   struct drm_amdgpu_vm_in in;
   struct drm_amdgpu_vm_out out;
 };
+#define AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE 1
+struct drm_amdgpu_sched_in {
+  __u32 op;
+  __u32 fd;
+  __s32 priority;
+  __u32 flags;
+};
+union drm_amdgpu_sched {
+  struct drm_amdgpu_sched_in in;
+};
 #define AMDGPU_GEM_USERPTR_READONLY (1 << 0)
 #define AMDGPU_GEM_USERPTR_ANONONLY (1 << 1)
 #define AMDGPU_GEM_USERPTR_VALIDATE (1 << 2)
@@ -331,6 +353,19 @@
 struct drm_amdgpu_cs_chunk_sem {
   __u32 handle;
 };
+#define AMDGPU_FENCE_TO_HANDLE_GET_SYNCOBJ 0
+#define AMDGPU_FENCE_TO_HANDLE_GET_SYNCOBJ_FD 1
+#define AMDGPU_FENCE_TO_HANDLE_GET_SYNC_FILE_FD 2
+union drm_amdgpu_fence_to_handle {
+  struct {
+    struct drm_amdgpu_fence fence;
+    __u32 what;
+    __u32 pad;
+  } in;
+  struct {
+    __u32 handle;
+  } out;
+};
 struct drm_amdgpu_cs_chunk_data {
   union {
     struct drm_amdgpu_cs_chunk_ib ib_data;
@@ -381,6 +416,7 @@
 #define AMDGPU_INFO_SENSOR_VDDNB 0x6
 #define AMDGPU_INFO_SENSOR_VDDGFX 0x7
 #define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS 0x1E
+#define AMDGPU_INFO_VRAM_LOST_COUNTER 0x1F
 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0
 #define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff
 #define AMDGPU_INFO_MMR_SH_INDEX_SHIFT 8