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/Linux-v6.1/drivers/gpu/drm/
Ddrm_gem_ttm_helper.c10 * This library provides helper functions for gem objects backed by
18 * @gem: GEM object
24 const struct drm_gem_object *gem) in drm_gem_ttm_print_info() argument
40 const struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem); in drm_gem_ttm_print_info()
54 * @gem: GEM object.
57 * Maps a GEM object with ttm_bo_vmap(). This function can be used as
63 int drm_gem_ttm_vmap(struct drm_gem_object *gem, in drm_gem_ttm_vmap() argument
66 struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem); in drm_gem_ttm_vmap()
69 dma_resv_lock(gem->resv, NULL); in drm_gem_ttm_vmap()
71 dma_resv_unlock(gem->resv); in drm_gem_ttm_vmap()
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Ddrm_gem_vram_helper.c28 * This library provides &struct drm_gem_vram_object (GEM VRAM), a GEM
33 * manager for simple framebuffer devices with dedicated video memory. GEM
37 * With the GEM interface userspace applications create, manage and destroy
38 * graphics buffers, such as an on-screen framebuffer. GEM does not provide
45 * left in VRAM, inactive GEM objects can be moved to system memory.
82 * interfaces for GEM buffer management and initializes file operations to
83 * allow for accessing created GEM buffers. With this setup, the DRM driver
84 * manages an area of video RAM with VRAM MM and provides GEM VRAM objects
116 * up; only release the GEM object. in drm_gem_vram_cleanup()
171 * drm_gem_vram_create() - Creates a VRAM-backed GEM object
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Ddrm_prime.c48 * Similar to GEM global names, PRIME file descriptors are also used to share
51 * between applications, they can't be guessed like the globally unique GEM
56 * GEM based drivers must use drm_gem_prime_handle_to_fd() and
57 * drm_gem_prime_fd_to_handle() to implement these. For GEM based drivers the
61 * &dma_buf_ops implementations for GEM drivers are all individually exported
64 * Reference Counting for GEM Drivers
70 * and stores the exporting GEM object in the &dma_buf.priv field. This
73 * GEM-based drivers, the &dma_buf should be exported using
77 * importing GEM object -> dma-buf -> exported GEM bo. A further complication
80 * is required to allow userspace to detect duplicated imports, since some GEM
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Ddrm_gem_shmem_helper.c31 * This library provides helpers for GEM objects backed by shmem buffers
34 * Functions that operate on the GEM object receive struct &drm_gem_shmem_object.
35 * For GEM callback helpers in struct &drm_gem_object functions, see likewise
119 * This function creates a shmem GEM object.
132 * drm_gem_shmem_free - Free resources associated with a shmem GEM object
133 * @shmem: shmem GEM object to free
135 * This function cleans up the GEM object state and frees the memory used to
197 * drm_gem_shmem_get_pages - Allocate backing pages for a shmem GEM object
198 * @shmem: shmem GEM object
200 * This function makes sure that backing pages exists for the shmem GEM object
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Ddrm_gem_dma_helper.c3 * drm gem DMA helper functions
29 * The DRM GEM/DMA helpers are a means to provide buffer objects that are
43 * For GEM callback helpers in struct &drm_gem_object functions, see likewise
58 * __drm_gem_dma_create - Create a GEM DMA object without allocating memory
63 * This function creates and initializes a GEM DMA object of the given size,
121 * This function creates a DMA GEM object and allocates memory as backing store.
173 * return a GEM handle to it
177 * @handle: return location for the GEM handle
179 * This function creates a DMA GEM object, allocating a chunk of memory as
180 * backing store. The GEM object is then added to the list of object associated
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Ddrm_gem.c90 * drm_gem_init - Initialize the GEM device fields
117 * drm_gem_object_init - initialize an allocated shmem-backed GEM object
122 * Initialize an already allocated GEM object of the specified size with
143 * drm_gem_private_object_init - initialize an allocated private GEM object
148 * Initialize an already allocated GEM object of the specified size with
149 * no GEM provided backing store. Instead the caller is responsible for
174 * @obj: GEM object to clean up.
255 * Removes the GEM handle from the @filp lookup table which has been added with
257 * resources like GEM names.
285 * drm_gem_dumb_map_offset - return the fake mmap offset for a gem object
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Ddrm_fb_dma_helper.c38 * drm_fb_dma_get_gem_obj() - Get DMA GEM object for framebuffer
42 * Return the DMA GEM object for given framebuffer.
49 struct drm_gem_object *gem; in drm_fb_dma_get_gem_obj() local
51 gem = drm_gem_fb_get_obj(fb, plane); in drm_fb_dma_get_gem_obj()
52 if (!gem) in drm_fb_dma_get_gem_obj()
55 return to_drm_gem_dma_obj(gem); in drm_fb_dma_get_gem_obj()
66 * Return the DMA GEM address for given framebuffer.
109 * drm_fb_dma_sync_non_coherent - Sync GEM object to non-coherent backing
116 * DMA GEM objects backed by non-coherent memory. Calling this function
/Linux-v6.1/drivers/gpu/drm/tegra/
Dgem.c3 * NVIDIA Tegra DRM GEM helper functions
8 * Based on the GEM/CMA helpers
22 #include "gem.h"
55 drm_gem_object_put(&obj->gem); in tegra_bo_put()
62 struct drm_gem_object *gem = &obj->gem; in tegra_bo_pin() local
78 if (gem->import_attach) { in tegra_bo_pin()
79 struct dma_buf *buf = gem->import_attach->dmabuf; in tegra_bo_pin()
96 map->size = gem->size; in tegra_bo_pin()
116 err = sg_alloc_table_from_pages(map->sgt, obj->pages, obj->num_pages, 0, gem->size, in tegra_bo_pin()
126 err = dma_get_sgtable(dev, map->sgt, obj->vaddr, obj->iova, gem->size); in tegra_bo_pin()
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Dgem.h3 * Tegra host1x GEM implementation
36 struct drm_gem_object gem; member
52 static inline struct tegra_bo *to_tegra_bo(struct drm_gem_object *gem) in to_tegra_bo() argument
54 return container_of(gem, struct tegra_bo, gem); in to_tegra_bo()
69 void tegra_bo_free_object(struct drm_gem_object *gem);
75 int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma);
78 struct dma_buf *tegra_gem_prime_export(struct drm_gem_object *gem,
Dfb.c18 #include "gem.h"
127 fb->obj[i] = &planes[i]->gem; in tegra_fb_alloc()
146 struct drm_gem_object *gem; in tegra_fb_create() local
156 gem = drm_gem_object_lookup(file, cmd->handles[i]); in tegra_fb_create()
157 if (!gem) { in tegra_fb_create()
167 if (gem->size < size) { in tegra_fb_create()
172 planes[i] = to_tegra_bo(gem); in tegra_fb_create()
185 drm_gem_object_put(&planes[i]->gem); in tegra_fb_create()
199 err = drm_gem_mmap_obj(&bo->gem, bo->gem.size, vma); in tegra_fb_mmap()
203 return __tegra_gem_mmap(&bo->gem, vma); in tegra_fb_mmap()
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Ddrm.c32 #include "gem.h"
254 refs[num_refs++] = &obj->gem; in tegra_drm_submit()
261 if (offset & 3 || offset > obj->gem.size) { in tegra_drm_submit()
284 refs[num_refs++] = &obj->gem; in tegra_drm_submit()
292 reloc->cmdbuf.offset >= obj->gem.size) { in tegra_drm_submit()
298 refs[num_refs++] = &obj->gem; in tegra_drm_submit()
300 if (reloc->target.offset >= obj->gem.size) { in tegra_drm_submit()
370 struct drm_gem_object *gem; in tegra_gem_mmap() local
373 gem = drm_gem_object_lookup(file, args->handle); in tegra_gem_mmap()
374 if (!gem) in tegra_gem_mmap()
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/Linux-v6.1/Documentation/gpu/
Ddrm-mm.rst12 (TTM) and Graphics Execution Manager (GEM). TTM was the first DRM memory
20 GEM started as an Intel-sponsored project in reaction to TTM's
22 providing a solution to every graphics memory-related problems, GEM
24 share it. GEM has simpler initialization and execution requirements than
79 The Graphics Execution Manager (GEM)
82 The GEM design approach has resulted in a memory manager that doesn't
84 userspace or kernel API. GEM exposes a set of standard memory-related
89 The GEM userspace API is described in the `GEM - the Graphics Execution
91 slightly outdated, the document provides a good overview of the GEM API
93 as part of the common GEM API, are currently implemented using
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/Linux-v6.1/drivers/gpu/drm/i915/
DMakefile143 # GEM (Graphics Execution Management) code
144 gem-y += \
145 gem/i915_gem_busy.o \
146 gem/i915_gem_clflush.o \
147 gem/i915_gem_context.o \
148 gem/i915_gem_create.o \
149 gem/i915_gem_dmabuf.o \
150 gem/i915_gem_domain.o \
151 gem/i915_gem_execbuffer.o \
152 gem/i915_gem_internal.o \
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/Linux-v6.1/Documentation/devicetree/bindings/net/
Dcdns,macb.yaml7 title: Cadence MACB/GEM Ethernet controller
23 - cdns,zynq-gem # Xilinx Zynq-7xxx SoC
24 - cdns,zynqmp-gem # Xilinx Zynq Ultrascale+ MPSoC
25 - const: cdns,gem # Generic
30 - xlnx,versal-gem # Xilinx Versal
31 - xlnx,zynq-gem # Xilinx Zynq-7xxx SoC
32 - xlnx,zynqmp-gem # Xilinx Zynq Ultrascale+ MPSoC
33 - const: cdns,gem # Generic
50 - atmel,sama5d29-gem # GEM XL IP (10/100) on Atmel sama5d29 SoCs
51 - atmel,sama5d2-gem # GEM IP (10/100) on Atmel sama5d2 SoCs
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/Linux-v6.1/include/drm/
Ddrm_gem.h5 * GEM Graphics Execution Manager Driver Interfaces
46 * struct drm_gem_object_funcs - GEM object functions
61 * Called upon GEM handle creation.
70 * Called upon GEM handle release.
157 * Handle mmap() of the gem object, setup vma accordingly.
180 * A helper for tracking GEM objects in a given state, to aid in
190 * Lock protecting movement of GEM objects between LRUs. All
199 * The total number of backing pages of the GEM objects in
213 * struct drm_gem_object - GEM buffer object
215 * This structure defines the generic parts for GEM buffer objects, which are
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Ddrm_gem_dma_helper.h12 * struct drm_gem_dma_object - GEM object backed by DMA memory allocations
13 * @base: base GEM object
19 * @map_noncoherent: if true, the GEM object is backed by non-coherent memory
26 /* For objects with DMA memory allocated by GEM DMA */
48 * GEM object functions
52 * drm_gem_dma_object_free - GEM object function for drm_gem_dma_free()
53 * @obj: GEM object to free
69 * @obj: GEM object
83 * drm_gem_dma_object_get_sg_table - GEM object function for drm_gem_dma_get_sg_table()
84 * @obj: GEM object
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Ddrm_gem_shmem_helper.h21 * struct drm_gem_shmem_object - GEM object backed by shmem
25 * @base: Base GEM object
143 * GEM object functions
147 * drm_gem_shmem_object_free - GEM object function for drm_gem_shmem_free()
148 * @obj: GEM object to free
164 * @obj: GEM object
178 * drm_gem_shmem_object_pin - GEM object function for drm_gem_shmem_pin()
179 * @obj: GEM object
192 * drm_gem_shmem_object_unpin - GEM object function for drm_gem_shmem_unpin()
193 * @obj: GEM object
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Ddrm_gem_vram_helper.h33 * struct drm_gem_vram_object - GEM object backed by VRAM
40 * The type struct drm_gem_vram_object represents a GEM object that is
45 * GEM VRAM objects perform reference counting for pin and mapping
73 * Returns: The containing GEM VRAM object
83 * &struct drm_gem_vram_object for field gem.
84 * @gem: the GEM object
85 * Returns: The containing GEM VRAM object
88 struct drm_gem_object *gem) in drm_gem_vram_of_gem() argument
90 return container_of(gem, struct drm_gem_vram_object, bo.base); in drm_gem_vram_of_gem()
132 * Drivers may use GEM BOs as VRAM helpers for the framebuffer memory. This
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/Linux-v6.1/drivers/gpu/drm/exynos/
Dexynos_drm_gem.h21 * @base: a gem object.
22 * - a new handle to this gem object would be created
49 /* destroy a buffer with gem object */
52 /* create a new buffer with gem object */
59 * request gem object creation and buffer allocation as the size
66 /* get fake-offset of gem object that can be used with mmap. */
71 * get exynos drm object from gem handle, this function could be used for
73 * with this function call, gem object reference count would be increased.
80 * gem object reference count would be decreased.
87 /* get buffer information to memory region allocated by gem. */
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/Linux-v6.1/drivers/gpu/drm/nouveau/
Dnouveau_gem.c77 nouveau_gem_object_del(struct drm_gem_object *gem) in nouveau_gem_object_del() argument
79 struct nouveau_bo *nvbo = nouveau_gem_object(gem); in nouveau_gem_object_del()
90 if (gem->import_attach) in nouveau_gem_object_del()
91 drm_prime_gem_destroy(gem, nvbo->bo.sg); in nouveau_gem_object_del()
100 nouveau_gem_object_open(struct drm_gem_object *gem, struct drm_file *file_priv) in nouveau_gem_object_open() argument
103 struct nouveau_bo *nvbo = nouveau_gem_object(gem); in nouveau_gem_object_open()
177 nouveau_gem_object_close(struct drm_gem_object *gem, struct drm_file *file_priv) in nouveau_gem_object_close() argument
180 struct nouveau_bo *nvbo = nouveau_gem_object(gem); in nouveau_gem_object_close()
240 /* Initialize the embedded gem-object. We return a single gem-reference in nouveau_gem_new()
267 nouveau_gem_info(struct drm_file *file_priv, struct drm_gem_object *gem, in nouveau_gem_info() argument
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/Linux-v6.1/drivers/gpu/drm/mediatek/
Dmtk_drm_gem.h14 * @base: a gem object.
15 * - a new handle to this gem object would be created
18 * @kvaddr: kernel virtual address of gem buffer.
19 * @dma_addr: dma address of gem buffer.
20 * @dma_attrs: dma attributes of gem buffer.
37 void mtk_drm_gem_free_object(struct drm_gem_object *gem);
/Linux-v6.1/drivers/gpu/drm/gma500/
Dgem.c3 * psb GEM interface
11 * accelerated operations on a GEM object)
21 #include "gem.h"
25 * PSB GEM object
165 /* GEM object */ in psb_gem_create()
216 pobj = psb_gem_create(dev, size, "gem", false, PAGE_SIZE); in psb_gem_dumb_create()
239 * psb_gem_fault - pagefault handler for GEM objects
242 * Invoked when a fault occurs on an mmap of a GEM managed area. GEM
250 * The VMA was set up by GEM. In doing so it also ensured that the
251 * vma->vm_private_data points to the GEM object that is backing this
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/Linux-v6.1/include/uapi/drm/
Dtegra_drm.h19 * struct drm_tegra_gem_create - parameters for the GEM object creation IOCTL
32 * A bitmask of flags that influence the creation of GEM objects:
45 * The handle of the created GEM object. Set by the kernel upon
52 * struct drm_tegra_gem_mmap - parameters for the GEM mmap IOCTL
58 * Handle of the GEM object to obtain an mmap offset for.
72 * The mmap offset for the given GEM object. Set by the kernel upon
276 * Handle to a GEM object containing the command buffer.
283 * Offset, in bytes, into the GEM object identified by @handle at
304 * struct drm_tegra_reloc - GEM object relocation structure
311 * Handle to the GEM object containing the command buffer for
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/Linux-v6.1/drivers/net/ethernet/sun/
Dsungem.c3 * sungem.c: Sun GEM ethernet driver.
81 MODULE_DESCRIPTION("Sun GEM Gbit ethernet driver");
84 #define GEM_MODULE_NAME "gem"
90 /* These models only differ from the original GEM in
116 static u16 __sungem_phy_read(struct gem *gp, int phy_addr, int reg) in __sungem_phy_read()
144 struct gem *gp = netdev_priv(dev); in _sungem_phy_read()
148 static inline u16 sungem_phy_read(struct gem *gp, int reg) in sungem_phy_read()
153 static void __sungem_phy_write(struct gem *gp, int phy_addr, int reg, u16 val) in __sungem_phy_write()
177 struct gem *gp = netdev_priv(dev); in _sungem_phy_write()
181 static inline void sungem_phy_write(struct gem *gp, int reg, u16 val) in sungem_phy_write()
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/Linux-v6.1/Documentation/devicetree/bindings/interconnect/
Dqcom,rpmh.yaml36 - qcom,sc7180-gem-noc
48 - qcom,sc7280-gem-noc
60 - qcom,sc8180x-gem-noc
71 - qcom,sc8280xp-gem-noc
98 - qcom,sm8150-gem-noc
108 - qcom,sm8250-gem-noc
118 - qcom,sm8350-gem-noc
128 - qcom,sm8450-gem-noc

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