2 * Copyright (C) 2013 Red Hat
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
21 #include <linux/reservation.h>
24 /* Additional internal-use only BO flags: */
25 #define MSM_BO_STOLEN 0x10000000 /* try to use stolen/splash memory */
27 struct msm_gem_address_space {
29 /* NOTE: mm managed at the page level, size is in # of pages
30 * and position mm_node->start is in # of pages:
37 struct drm_mm_node node;
41 struct msm_gem_object {
42 struct drm_gem_object base;
47 * Advice: are the backing pages purgeable?
52 * count of active vmap'ing
56 /* And object is either:
57 * inactive - on priv->inactive_list
58 * active - on one one of the gpu's active_list.. well, at
59 * least for now we don't have (I don't think) hw sync between
60 * 2d and 3d one devices which have both, meaning we need to
61 * block on submit if a bo is already on other ring
64 struct list_head mm_list;
65 struct msm_gpu *gpu; /* non-null if active */
67 /* Transiently in the process of submit ioctl, objects associated
68 * with the submit are on submit->bo_list.. this only lasts for
69 * the duration of the ioctl, so one bo can never be on multiple
72 struct list_head submit_entry;
78 struct msm_gem_vma domain[NUM_DOMAINS];
80 /* normally (resv == &_resv) except for imported bo's */
81 struct reservation_object *resv;
82 struct reservation_object _resv;
84 /* For physically contiguous buffers. Used when we don't have
85 * an IOMMU. Also used for stolen/splashscreen buffer.
87 struct drm_mm_node *vram_node;
89 #define to_msm_bo(x) container_of(x, struct msm_gem_object, base)
91 static inline bool is_active(struct msm_gem_object *msm_obj)
93 return msm_obj->gpu != NULL;
96 static inline bool is_purgeable(struct msm_gem_object *msm_obj)
98 return (msm_obj->madv == MSM_MADV_DONTNEED) && msm_obj->sgt &&
99 !msm_obj->base.dma_buf && !msm_obj->base.import_attach;
102 static inline bool is_vunmapable(struct msm_gem_object *msm_obj)
104 return (msm_obj->vmap_count == 0) && msm_obj->vaddr;
107 /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
108 * associated with the cmdstream submission for synchronization (and
109 * make it easier to unwind when things go wrong, etc). This only
110 * lasts for the duration of the submit-ioctl.
112 struct msm_gem_submit {
113 struct drm_device *dev;
115 struct list_head node; /* node in gpu submit_list */
116 struct list_head bo_list;
117 struct ww_acquire_ctx ticket;
118 struct dma_fence *fence;
119 struct pid *pid; /* submitting process */
120 bool valid; /* true if no cmdstream patching needed */
121 unsigned int nr_cmds;
125 uint32_t size; /* in dwords */
127 uint32_t idx; /* cmdstream buffer idx in bos[] */
128 } *cmd; /* array of size nr_cmds */
131 struct msm_gem_object *obj;
136 #endif /* __MSM_GEM_H__ */