drm/i915: Move object->pages API to i915_gem_object.[ch]

Currently the code for manipulating the pages on an object is still
residing in i915_gem.c, move it to i915_gem_object.c

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-3-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/Makefile

@@ -86,7 +86,10 @@ i915-y += $(gt-y)
 
 # GEM (Graphics Execution Management) code
 obj-y += gem/
+gem-y += \
+	gem/i915_gem_object.o
 i915-y += \
+	  $(gem-y) \
 	  i915_active.o \
 	  i915_cmd_parser.o \
 	  i915_gem_batch_pool.o \
@@ -99,7 +102,6 @@ i915-y += \
 	  i915_gem_gtt.o \
 	  i915_gem_internal.o \
 	  i915_gem.o \
-	  i915_gem_object.o \
 	  i915_gem_pm.o \
 	  i915_gem_render_state.o \
 	  i915_gem_shrinker.o \

drivers/gpu/drm/i915/gem/i915_gem_object.h

@@ -13,7 +13,7 @@
 
 #include <drm/i915_drm.h>
 
-#include "gem/i915_gem_object_types.h"
+#include "i915_gem_object_types.h"
 
 struct drm_i915_gem_object *i915_gem_object_alloc(void);
 void i915_gem_object_free(struct drm_i915_gem_object *obj);
@@ -192,6 +192,136 @@ i915_gem_object_get_tile_row_size(const struct drm_i915_gem_object *obj)
 int i915_gem_object_set_tiling(struct drm_i915_gem_object *obj,
 			       unsigned int tiling, unsigned int stride);
 
+struct scatterlist *
+i915_gem_object_get_sg(struct drm_i915_gem_object *obj,
+		       unsigned int n, unsigned int *offset);
+
+struct page *
+i915_gem_object_get_page(struct drm_i915_gem_object *obj,
+			 unsigned int n);
+
+struct page *
+i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj,
+			       unsigned int n);
+
+dma_addr_t
+i915_gem_object_get_dma_address_len(struct drm_i915_gem_object *obj,
+				    unsigned long n,
+				    unsigned int *len);
+
+dma_addr_t
+i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj,
+				unsigned long n);
+
+void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
+				 struct sg_table *pages,
+				 unsigned int sg_page_sizes);
+int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
+
+static inline int __must_check
+i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
+{
+	might_lock(&obj->mm.lock);
+
+	if (atomic_inc_not_zero(&obj->mm.pages_pin_count))
+		return 0;
+
+	return __i915_gem_object_get_pages(obj);
+}
+
+static inline bool
+i915_gem_object_has_pages(struct drm_i915_gem_object *obj)
+{
+	return !IS_ERR_OR_NULL(READ_ONCE(obj->mm.pages));
+}
+
+static inline void
+__i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
+{
+	GEM_BUG_ON(!i915_gem_object_has_pages(obj));
+
+	atomic_inc(&obj->mm.pages_pin_count);
+}
+
+static inline bool
+i915_gem_object_has_pinned_pages(struct drm_i915_gem_object *obj)
+{
+	return atomic_read(&obj->mm.pages_pin_count);
+}
+
+static inline void
+__i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
+{
+	GEM_BUG_ON(!i915_gem_object_has_pages(obj));
+	GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
+
+	atomic_dec(&obj->mm.pages_pin_count);
+}
+
+static inline void
+i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
+{
+	__i915_gem_object_unpin_pages(obj);
+}
+
+enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock/struct_mutex */
+	I915_MM_NORMAL = 0,
+	I915_MM_SHRINKER /* called "recursively" from direct-reclaim-esque */
+};
+
+int __i915_gem_object_put_pages(struct drm_i915_gem_object *obj,
+				enum i915_mm_subclass subclass);
+void __i915_gem_object_truncate(struct drm_i915_gem_object *obj);
+
+enum i915_map_type {
+	I915_MAP_WB = 0,
+	I915_MAP_WC,
+#define I915_MAP_OVERRIDE BIT(31)
+	I915_MAP_FORCE_WB = I915_MAP_WB | I915_MAP_OVERRIDE,
+	I915_MAP_FORCE_WC = I915_MAP_WC | I915_MAP_OVERRIDE,
+};
+
+/**
+ * i915_gem_object_pin_map - return a contiguous mapping of the entire object
+ * @obj: the object to map into kernel address space
+ * @type: the type of mapping, used to select pgprot_t
+ *
+ * Calls i915_gem_object_pin_pages() to prevent reaping of the object's
+ * pages and then returns a contiguous mapping of the backing storage into
+ * the kernel address space. Based on the @type of mapping, the PTE will be
+ * set to either WriteBack or WriteCombine (via pgprot_t).
+ *
+ * The caller is responsible for calling i915_gem_object_unpin_map() when the
+ * mapping is no longer required.
+ *
+ * Returns the pointer through which to access the mapped object, or an
+ * ERR_PTR() on error.
+ */
+void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
+					   enum i915_map_type type);
+
+void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj,
+				 unsigned long offset,
+				 unsigned long size);
+static inline void i915_gem_object_flush_map(struct drm_i915_gem_object *obj)
+{
+	__i915_gem_object_flush_map(obj, 0, obj->base.size);
+}
+
+/**
+ * i915_gem_object_unpin_map - releases an earlier mapping
+ * @obj: the object to unmap
+ *
+ * After pinning the object and mapping its pages, once you are finished
+ * with your access, call i915_gem_object_unpin_map() to release the pin
+ * upon the mapping. Once the pin count reaches zero, that mapping may be
+ * removed.
+ */
+static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
+{
+	i915_gem_object_unpin_pages(obj);
+}
+
 static inline struct intel_engine_cs *
 i915_gem_object_last_write_engine(struct drm_i915_gem_object *obj)
 {

drivers/gpu/drm/i915/i915_drv.h

@@ -2825,141 +2825,6 @@ static inline int __sg_page_count(const struct scatterlist *sg)
 	return sg->length >> PAGE_SHIFT;
 }
 
-struct scatterlist *
-i915_gem_object_get_sg(struct drm_i915_gem_object *obj,
-		       unsigned int n, unsigned int *offset);
-
-struct page *
-i915_gem_object_get_page(struct drm_i915_gem_object *obj,
-			 unsigned int n);
-
-struct page *
-i915_gem_object_get_dirty_page(struct drm_i915_gem_object *obj,
-			       unsigned int n);
-
-dma_addr_t
-i915_gem_object_get_dma_address_len(struct drm_i915_gem_object *obj,
-				    unsigned long n,
-				    unsigned int *len);
-dma_addr_t
-i915_gem_object_get_dma_address(struct drm_i915_gem_object *obj,
-				unsigned long n);
-
-void __i915_gem_object_set_pages(struct drm_i915_gem_object *obj,
-				 struct sg_table *pages,
-				 unsigned int sg_page_sizes);
-int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj);
-
-static inline int __must_check
-i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
-{
-	might_lock(&obj->mm.lock);
-
-	if (atomic_inc_not_zero(&obj->mm.pages_pin_count))
-		return 0;
-
-	return __i915_gem_object_get_pages(obj);
-}
-
-static inline bool
-i915_gem_object_has_pages(struct drm_i915_gem_object *obj)
-{
-	return !IS_ERR_OR_NULL(READ_ONCE(obj->mm.pages));
-}
-
-static inline void
-__i915_gem_object_pin_pages(struct drm_i915_gem_object *obj)
-{
-	GEM_BUG_ON(!i915_gem_object_has_pages(obj));
-
-	atomic_inc(&obj->mm.pages_pin_count);
-}
-
-static inline bool
-i915_gem_object_has_pinned_pages(struct drm_i915_gem_object *obj)
-{
-	return atomic_read(&obj->mm.pages_pin_count);
-}
-
-static inline void
-__i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
-{
-	GEM_BUG_ON(!i915_gem_object_has_pages(obj));
-	GEM_BUG_ON(!i915_gem_object_has_pinned_pages(obj));
-
-	atomic_dec(&obj->mm.pages_pin_count);
-}
-
-static inline void
-i915_gem_object_unpin_pages(struct drm_i915_gem_object *obj)
-{
-	__i915_gem_object_unpin_pages(obj);
-}
-
-enum i915_mm_subclass { /* lockdep subclass for obj->mm.lock/struct_mutex */
-	I915_MM_NORMAL = 0,
-	I915_MM_SHRINKER /* called "recursively" from direct-reclaim-esque */
-};
-
-int __i915_gem_object_put_pages(struct drm_i915_gem_object *obj,
-				enum i915_mm_subclass subclass);
-void __i915_gem_object_truncate(struct drm_i915_gem_object *obj);
-
-enum i915_map_type {
-	I915_MAP_WB = 0,
-	I915_MAP_WC,
-#define I915_MAP_OVERRIDE BIT(31)
-	I915_MAP_FORCE_WB = I915_MAP_WB | I915_MAP_OVERRIDE,
-	I915_MAP_FORCE_WC = I915_MAP_WC | I915_MAP_OVERRIDE,
-};
-
-static inline enum i915_map_type
-i915_coherent_map_type(struct drm_i915_private *i915)
-{
-	return HAS_LLC(i915) ? I915_MAP_WB : I915_MAP_WC;
-}
-
-/**
- * i915_gem_object_pin_map - return a contiguous mapping of the entire object
- * @obj: the object to map into kernel address space
- * @type: the type of mapping, used to select pgprot_t
- *
- * Calls i915_gem_object_pin_pages() to prevent reaping of the object's
- * pages and then returns a contiguous mapping of the backing storage into
- * the kernel address space. Based on the @type of mapping, the PTE will be
- * set to either WriteBack or WriteCombine (via pgprot_t).
- *
- * The caller is responsible for calling i915_gem_object_unpin_map() when the
- * mapping is no longer required.
- *
- * Returns the pointer through which to access the mapped object, or an
- * ERR_PTR() on error.
- */
-void *__must_check i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
-					   enum i915_map_type type);
-
-void __i915_gem_object_flush_map(struct drm_i915_gem_object *obj,
-				 unsigned long offset,
-				 unsigned long size);
-static inline void i915_gem_object_flush_map(struct drm_i915_gem_object *obj)
-{
-	__i915_gem_object_flush_map(obj, 0, obj->base.size);
-}
-
-/**
- * i915_gem_object_unpin_map - releases an earlier mapping
- * @obj: the object to unmap
- *
- * After pinning the object and mapping its pages, once you are finished
- * with your access, call i915_gem_object_unpin_map() to release the pin
- * upon the mapping. Once the pin count reaches zero, that mapping may be
- * removed.
- */
-static inline void i915_gem_object_unpin_map(struct drm_i915_gem_object *obj)
-{
-	i915_gem_object_unpin_pages(obj);
-}
-
 int i915_gem_obj_prepare_shmem_read(struct drm_i915_gem_object *obj,
 				    unsigned int *needs_clflush);
 int i915_gem_obj_prepare_shmem_write(struct drm_i915_gem_object *obj,
@@ -3358,6 +3223,12 @@ static inline u32 i915_scratch_offset(const struct drm_i915_private *i915)
 	return i915_ggtt_offset(i915->gt.scratch);
 }
 
+static inline enum i915_map_type
+i915_coherent_map_type(struct drm_i915_private *i915)
+{
+	return HAS_LLC(i915) ? I915_MAP_WB : I915_MAP_WC;
+}
+
 static inline void add_taint_for_CI(unsigned int taint)
 {
 	/*

drivers/gpu/drm/i915/i915_globals.c

@@ -9,7 +9,7 @@
 
 #include "i915_active.h"
 #include "i915_gem_context.h"
-#include "i915_gem_object.h"
+#include "gem/i915_gem_object.h"
 #include "i915_globals.h"
 #include "i915_request.h"
 #include "i915_scheduler.h"

drivers/gpu/drm/i915/i915_vma.h

@@ -32,7 +32,7 @@
 
 #include "i915_gem_gtt.h"
 #include "i915_gem_fence_reg.h"
-#include "i915_gem_object.h"
+#include "gem/i915_gem_object.h"
 
 #include "i915_active.h"
 #include "i915_request.h"

drivers/gpu/drm/i915/intel_frontbuffer.h

@@ -24,7 +24,7 @@
 #ifndef __INTEL_FRONTBUFFER_H__
 #define __INTEL_FRONTBUFFER_H__
 
-#include "i915_gem_object.h"
+#include "gem/i915_gem_object.h"
 
 struct drm_i915_private;
 struct drm_i915_gem_object;