1 // SPDX-License-Identifier: MIT
3 * Copyright © 2020 Intel Corporation
6 #include "gem/i915_gem_ioctls.h"
7 #include "gem/i915_gem_region.h"
12 i915_gem_create(struct drm_file *file,
13 struct intel_memory_region *mr,
17 struct drm_i915_gem_object *obj;
22 GEM_BUG_ON(!is_power_of_2(mr->min_page_size));
23 size = round_up(*size_p, mr->min_page_size);
27 /* For most of the ABI (e.g. mmap) we think in system pages */
28 GEM_BUG_ON(!IS_ALIGNED(size, PAGE_SIZE));
30 /* Allocate the new object */
31 obj = i915_gem_object_create_region(mr, size, 0);
35 GEM_BUG_ON(size != obj->base.size);
37 ret = drm_gem_handle_create(file, &obj->base, &handle);
38 /* drop reference from allocate - handle holds it now */
39 i915_gem_object_put(obj);
49 i915_gem_dumb_create(struct drm_file *file,
50 struct drm_device *dev,
51 struct drm_mode_create_dumb *args)
53 enum intel_memory_type mem_type;
54 int cpp = DIV_ROUND_UP(args->bpp, 8);
59 format = DRM_FORMAT_C8;
62 format = DRM_FORMAT_RGB565;
65 format = DRM_FORMAT_XRGB8888;
71 /* have to work out size/pitch and return them */
72 args->pitch = ALIGN(args->width * cpp, 64);
74 /* align stride to page size so that we can remap */
75 if (args->pitch > intel_plane_fb_max_stride(to_i915(dev), format,
76 DRM_FORMAT_MOD_LINEAR))
77 args->pitch = ALIGN(args->pitch, 4096);
79 if (args->pitch < args->width)
82 args->size = mul_u32_u32(args->pitch, args->height);
84 mem_type = INTEL_MEMORY_SYSTEM;
85 if (HAS_LMEM(to_i915(dev)))
86 mem_type = INTEL_MEMORY_LOCAL;
88 return i915_gem_create(file,
89 intel_memory_region_by_type(to_i915(dev),
91 &args->size, &args->handle);
95 * Creates a new mm object and returns a handle to it.
96 * @dev: drm device pointer
97 * @data: ioctl data blob
98 * @file: drm file pointer
101 i915_gem_create_ioctl(struct drm_device *dev, void *data,
102 struct drm_file *file)
104 struct drm_i915_private *i915 = to_i915(dev);
105 struct drm_i915_gem_create *args = data;
107 i915_gem_flush_free_objects(i915);
109 return i915_gem_create(file,
110 intel_memory_region_by_type(i915,
111 INTEL_MEMORY_SYSTEM),
112 &args->size, &args->handle);