Merge branch 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux into drm-next

A few more things for 4.12:
- ttm and amdgpu support for non-contiguous vram CPU mappings
- lots of bug fixes and cleanups for vega10
- misc bug fixes and code cleanups

[airlied: fix do_div error on 32-bit arm, not sure it's 100% correct]

* 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux: (58 commits)
  drm/amdgpu: use uintptr_t instead of unsigned long to store pointer
  drm/amdgpu: Avoid using signed integer to store pointer value
  drm/amdgpu:invoke new implemented AI MB func
  drm/amdgpu/vega10:timeout set to equal with VI
  drm/amdgpu:implement the reset MB func for vega10
  drm/amdgpu:fix typo for mxgpu_ai
  drm/amdgpu:no need to involv HDP in KIQ
  drm/amdgpu:add PSP block only load_type=PSP (v2)
  drm/amdgpu/smu9: update to latest driver interface
  drm/amd/amdgpu: cleanup gfx_v9_0_gpu_init()
  drm/amd/amdgpu: cleanup gfx_v9_0_rlc_reset()
  drm/amd/amdgpu: cleanup gfx_v9_0_rlc_start()
  drm/amd/amdgpu: simplify gfx_v9_0_cp_gfx_enable()
  drm/amd/amdgpu: cleanup gfx_v9_0_kiq_init_register()
  drm/amd/amdgpu: Drop gfx_v9_0_print_status()
  drm/amd/amdgpu: cleanup gfx_v9_0_set_gfx_eop_interrupt_state()
  drm/amd/amdgpu: cleanup gfx_v9_0_set_priv_reg_fault_state()
  drm/amd/amdgpu: cleanup gfx_v9_0_set_priv_inst_fault_state()
  drm/amd/amdgpu: cleanup gfx_v9_0_init_queue()
  drm/amdgpu: Move function amdgpu_has_atpx near other similar functions
  ...

include/drm/ttm/ttm_bo_api.h

@@ -710,6 +710,17 @@ extern void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map);
 extern int ttm_fbdev_mmap(struct vm_area_struct *vma,
 			  struct ttm_buffer_object *bo);
 
+/**
+ * ttm_bo_default_iomem_pfn - get a pfn for a page offset
+ *
+ * @bo: the BO we need to look up the pfn for
+ * @page_offset: offset inside the BO to look up.
+ *
+ * Calculate the PFN for iomem based mappings during page fault
+ */
+unsigned long ttm_bo_default_io_mem_pfn(struct ttm_buffer_object *bo,
+				        unsigned long page_offset);
+
 /**
  * ttm_bo_mmap - mmap out of the ttm device address space.
  *

include/drm/ttm/ttm_bo_driver.h

@@ -462,6 +462,15 @@ struct ttm_bo_driver {
 			      struct ttm_mem_reg *mem);
 	void (*io_mem_free)(struct ttm_bo_device *bdev,
 			    struct ttm_mem_reg *mem);
+
+	/**
+	 * Return the pfn for a given page_offset inside the BO.
+	 *
+	 * @bo: the BO to look up the pfn for
+	 * @page_offset: the offset to look up
+	 */
+	unsigned long (*io_mem_pfn)(struct ttm_buffer_object *bo,
+				    unsigned long page_offset);
 };
 
 /**

include/drm/ttm/ttm_placement.h

@@ -63,6 +63,7 @@
 #define TTM_PL_FLAG_CACHED      (1 << 16)
 #define TTM_PL_FLAG_UNCACHED    (1 << 17)
 #define TTM_PL_FLAG_WC          (1 << 18)
+#define TTM_PL_FLAG_CONTIGUOUS  (1 << 19)
 #define TTM_PL_FLAG_NO_EVICT    (1 << 21)
 #define TTM_PL_FLAG_TOPDOWN     (1 << 22)