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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - drivers/gpu/drm/msm/msm_gem.h
2 * Copyright (C) 2013 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
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_object
{
28 struct drm_gem_object base
;
32 /* And object is either:
33 * inactive - on priv->inactive_list
34 * active - on one one of the gpu's active_list.. well, at
35 * least for now we don't have (I don't think) hw sync between
36 * 2d and 3d one devices which have both, meaning we need to
37 * block on submit if a bo is already on other ring
40 struct list_head mm_list
;
41 struct msm_gpu
*gpu
; /* non-null if active */
42 uint32_t read_fence
, write_fence
;
44 /* Transiently in the process of submit ioctl, objects associated
45 * with the submit are on submit->bo_list.. this only lasts for
46 * the duration of the ioctl, so one bo can never be on multiple
49 struct list_head submit_entry
;
58 } domain
[NUM_DOMAINS
];
60 /* normally (resv == &_resv) except for imported bo's */
61 struct reservation_object
*resv
;
62 struct reservation_object _resv
;
64 /* For physically contiguous buffers. Used when we don't have
65 * an IOMMU. Also used for stolen/splashscreen buffer.
67 struct drm_mm_node
*vram_node
;
69 #define to_msm_bo(x) container_of(x, struct msm_gem_object, base)
71 static inline bool is_active(struct msm_gem_object
*msm_obj
)
73 return msm_obj
->gpu
!= NULL
;
76 static inline uint32_t msm_gem_fence(struct msm_gem_object
*msm_obj
,
81 if (op
& MSM_PREP_READ
)
82 fence
= msm_obj
->write_fence
;
83 if (op
& MSM_PREP_WRITE
)
84 fence
= max(fence
, msm_obj
->read_fence
);
91 /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
92 * associated with the cmdstream submission for synchronization (and
93 * make it easier to unwind when things go wrong, etc). This only
94 * lasts for the duration of the submit-ioctl.
96 struct msm_gem_submit
{
97 struct drm_device
*dev
;
99 struct list_head node
; /* node in gpu submit_list */
100 struct list_head bo_list
;
101 struct ww_acquire_ctx ticket
;
104 unsigned int nr_cmds
;
108 uint32_t size
; /* in dwords */
110 uint32_t idx
; /* cmdstream buffer idx in bos[] */
114 struct msm_gem_object
*obj
;
119 #endif /* __MSM_GEM_H__ */