Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next

This is a major rework of the nouveau driver core, to reflect more closely
how the hw is used and to make it easier to implement newer features now
that the GPUs are more clearly understood than when nouveau started.

It also contains a few other bits:
thermal patches
nv41/44 pcie gart fixes
i2c unregistering fixes.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (191 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

Conflicts:
	drivers/gpu/drm/nouveau/nouveau_dp.c

1 files changed, 142 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/vm.h b/drivers/gpu/drm/nouveau/core/include/subdev/vm.h
new file mode 100644
index 000000000000..9d595efe667a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/vm.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2010 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#ifndef __NOUVEAU_VM_H__
+#define __NOUVEAU_VM_H__
+
+#include <core/object.h>
+#include <core/subdev.h>
+#include <core/device.h>
+#include <core/mm.h>
+
+struct nouveau_vm_pgt {
+	struct nouveau_gpuobj *obj[2];
+	u32 refcount[2];
+};
+
+struct nouveau_vm_pgd {
+	struct list_head head;
+	struct nouveau_gpuobj *obj;
+};
+
+struct nouveau_gpuobj;
+struct nouveau_mem;
+
+struct nouveau_vma {
+	struct list_head head;
+	int refcount;
+	struct nouveau_vm *vm;
+	struct nouveau_mm_node *node;
+	u64 offset;
+	u32 access;
+};
+
+struct nouveau_vm {
+	struct nouveau_vmmgr *vmm;
+	struct nouveau_mm mm;
+	int refcount;
+
+	struct list_head pgd_list;
+	atomic_t engref[64]; //NVDEV_SUBDEV_NR];
+
+	struct nouveau_vm_pgt *pgt;
+	u32 fpde;
+	u32 lpde;
+};
+
+struct nouveau_vmmgr {
+	struct nouveau_subdev base;
+
+	u64 limit;
+	u8  dma_bits;
+	u32 pgt_bits;
+	u8  spg_shift;
+	u8  lpg_shift;
+
+	int  (*create)(struct nouveau_vmmgr *, u64 offset, u64 length,
+		       u64 mm_offset, struct nouveau_vm **);
+
+	void (*map_pgt)(struct nouveau_gpuobj *pgd, u32 pde,
+			struct nouveau_gpuobj *pgt[2]);
+	void (*map)(struct nouveau_vma *, struct nouveau_gpuobj *,
+		    struct nouveau_mem *, u32 pte, u32 cnt,
+		    u64 phys, u64 delta);
+	void (*map_sg)(struct nouveau_vma *, struct nouveau_gpuobj *,
+		       struct nouveau_mem *, u32 pte, u32 cnt, dma_addr_t *);
+	void (*unmap)(struct nouveau_gpuobj *pgt, u32 pte, u32 cnt);
+	void (*flush)(struct nouveau_vm *);
+};
+
+static inline struct nouveau_vmmgr *
+nouveau_vmmgr(void *obj)
+{
+	return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_VM];
+}
+
+#define nouveau_vmmgr_create(p,e,o,i,f,d)                                      \
+	nouveau_subdev_create((p), (e), (o), 0, (i), (f), (d))
+#define nouveau_vmmgr_destroy(p)                                               \
+	nouveau_subdev_destroy(&(p)->base)
+#define nouveau_vmmgr_init(p)                                                  \
+	nouveau_subdev_init(&(p)->base)
+#define nouveau_vmmgr_fini(p,s)                                                \
+	nouveau_subdev_fini(&(p)->base, (s))
+
+#define _nouveau_vmmgr_dtor _nouveau_subdev_dtor
+#define _nouveau_vmmgr_init _nouveau_subdev_init
+#define _nouveau_vmmgr_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass nv04_vmmgr_oclass;
+extern struct nouveau_oclass nv41_vmmgr_oclass;
+extern struct nouveau_oclass nv44_vmmgr_oclass;
+extern struct nouveau_oclass nv50_vmmgr_oclass;
+extern struct nouveau_oclass nvc0_vmmgr_oclass;
+
+int  nv04_vm_create(struct nouveau_vmmgr *, u64, u64, u64,
+		    struct nouveau_vm **);
+void nv04_vmmgr_dtor(struct nouveau_object *);
+
+void nv50_vm_flush_engine(struct nouveau_subdev *, int engine);
+void nvc0_vm_flush_engine(struct nouveau_subdev *, u64 addr, int type);
+
+/* nouveau_vm.c */
+int  nouveau_vm_create(struct nouveau_vmmgr *, u64 offset, u64 length,
+		       u64 mm_offset, u32 block, struct nouveau_vm **);
+int  nouveau_vm_new(struct nouveau_device *, u64 offset, u64 length,
+		    u64 mm_offset, struct nouveau_vm **);
+int  nouveau_vm_ref(struct nouveau_vm *, struct nouveau_vm **,
+		    struct nouveau_gpuobj *pgd);
+int  nouveau_vm_get(struct nouveau_vm *, u64 size, u32 page_shift,
+		    u32 access, struct nouveau_vma *);
+void nouveau_vm_put(struct nouveau_vma *);
+void nouveau_vm_map(struct nouveau_vma *, struct nouveau_mem *);
+void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_mem *);
+void nouveau_vm_unmap(struct nouveau_vma *);
+void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
+void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
+		       struct nouveau_mem *);
+void nouveau_vm_map_sg_table(struct nouveau_vma *vma, u64 delta, u64 length,
+		     struct nouveau_mem *mem);
+
+#endif