Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 139 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
new file mode 100644
index 000000000..2953ed5c3
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_memory_region.h
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __INTEL_MEMORY_REGION_H__
+#define __INTEL_MEMORY_REGION_H__
+
+#include <linux/ioport.h>
+#include <linux/mutex.h>
+#include <linux/io-mapping.h>
+#include <drm/drm_mm.h>
+#include <uapi/drm/i915_drm.h>
+
+struct drm_i915_private;
+struct drm_i915_gem_object;
+struct drm_printer;
+struct intel_memory_region;
+struct sg_table;
+struct ttm_resource;
+
+enum intel_memory_type {
+	INTEL_MEMORY_SYSTEM = I915_MEMORY_CLASS_SYSTEM,
+	INTEL_MEMORY_LOCAL = I915_MEMORY_CLASS_DEVICE,
+	INTEL_MEMORY_STOLEN_SYSTEM,
+	INTEL_MEMORY_STOLEN_LOCAL,
+	INTEL_MEMORY_MOCK,
+};
+
+enum intel_region_id {
+	INTEL_REGION_SMEM = 0,
+	INTEL_REGION_LMEM_0,
+	INTEL_REGION_LMEM_1,
+	INTEL_REGION_LMEM_2,
+	INTEL_REGION_LMEM_3,
+	INTEL_REGION_STOLEN_SMEM,
+	INTEL_REGION_STOLEN_LMEM,
+	INTEL_REGION_UNKNOWN, /* Should be last */
+};
+
+#define REGION_SMEM     BIT(INTEL_REGION_SMEM)
+#define REGION_LMEM     BIT(INTEL_REGION_LMEM_0)
+#define REGION_STOLEN_SMEM   BIT(INTEL_REGION_STOLEN_SMEM)
+#define REGION_STOLEN_LMEM   BIT(INTEL_REGION_STOLEN_LMEM)
+
+#define I915_ALLOC_CONTIGUOUS     BIT(0)
+
+#define for_each_memory_region(mr, i915, id) \
+	for (id = 0; id < ARRAY_SIZE((i915)->mm.regions); id++) \
+		for_each_if((mr) = (i915)->mm.regions[id])
+
+struct intel_memory_region_ops {
+	unsigned int flags;
+
+	int (*init)(struct intel_memory_region *mem);
+	int (*release)(struct intel_memory_region *mem);
+
+	int (*init_object)(struct intel_memory_region *mem,
+			   struct drm_i915_gem_object *obj,
+			   resource_size_t offset,
+			   resource_size_t size,
+			   resource_size_t page_size,
+			   unsigned int flags);
+};
+
+struct intel_memory_region {
+	struct drm_i915_private *i915;
+
+	const struct intel_memory_region_ops *ops;
+
+	struct io_mapping iomap;
+	struct resource region;
+
+	resource_size_t io_start;
+	resource_size_t io_size;
+	resource_size_t min_page_size;
+	resource_size_t total;
+
+	u16 type;
+	u16 instance;
+	enum intel_region_id id;
+	char name[16];
+	bool private; /* not for userspace */
+
+	struct {
+		struct mutex lock; /* Protects access to objects */
+		struct list_head list;
+	} objects;
+
+	bool is_range_manager;
+
+	void *region_private;
+};
+
+struct intel_memory_region *
+intel_memory_region_lookup(struct drm_i915_private *i915,
+			   u16 class, u16 instance);
+
+struct intel_memory_region *
+intel_memory_region_create(struct drm_i915_private *i915,
+			   resource_size_t start,
+			   resource_size_t size,
+			   resource_size_t min_page_size,
+			   resource_size_t io_start,
+			   resource_size_t io_size,
+			   u16 type,
+			   u16 instance,
+			   const struct intel_memory_region_ops *ops);
+
+void intel_memory_region_destroy(struct intel_memory_region *mem);
+
+int intel_memory_regions_hw_probe(struct drm_i915_private *i915);
+void intel_memory_regions_driver_release(struct drm_i915_private *i915);
+struct intel_memory_region *
+intel_memory_region_by_type(struct drm_i915_private *i915,
+			    enum intel_memory_type mem_type);
+
+__printf(2, 3) void
+intel_memory_region_set_name(struct intel_memory_region *mem,
+			     const char *fmt, ...);
+
+int intel_memory_region_reserve(struct intel_memory_region *mem,
+				resource_size_t offset,
+				resource_size_t size);
+
+void intel_memory_region_debug(struct intel_memory_region *mr,
+			       struct drm_printer *printer);
+
+void intel_memory_region_avail(struct intel_memory_region *mr,
+			       u64 *avail, u64 *visible_avail);
+
+struct intel_memory_region *
+i915_gem_ttm_system_setup(struct drm_i915_private *i915,
+			  u16 type, u16 instance);
+struct intel_memory_region *
+i915_gem_shmem_setup(struct drm_i915_private *i915,
+		     u16 type, u16 instance);
+
+#endif