1c8afe684SRob Clark /* 2c8afe684SRob Clark * Copyright (C) 2013 Red Hat 3c8afe684SRob Clark * Author: Rob Clark <robdclark@gmail.com> 4c8afe684SRob Clark * 5c8afe684SRob Clark * This program is free software; you can redistribute it and/or modify it 6c8afe684SRob Clark * under the terms of the GNU General Public License version 2 as published by 7c8afe684SRob Clark * the Free Software Foundation. 8c8afe684SRob Clark * 9c8afe684SRob Clark * This program is distributed in the hope that it will be useful, but WITHOUT 10c8afe684SRob Clark * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11c8afe684SRob Clark * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12c8afe684SRob Clark * more details. 13c8afe684SRob Clark * 14c8afe684SRob Clark * You should have received a copy of the GNU General Public License along with 15c8afe684SRob Clark * this program. If not, see <http://www.gnu.org/licenses/>. 16c8afe684SRob Clark */ 17c8afe684SRob Clark 18c8afe684SRob Clark #ifndef __MSM_GEM_H__ 19c8afe684SRob Clark #define __MSM_GEM_H__ 20c8afe684SRob Clark 217198e6b0SRob Clark #include <linux/reservation.h> 22c8afe684SRob Clark #include "msm_drv.h" 23c8afe684SRob Clark 24072f1f91SRob Clark /* Additional internal-use only BO flags: */ 25072f1f91SRob Clark #define MSM_BO_STOLEN 0x10000000 /* try to use stolen/splash memory */ 26072f1f91SRob Clark 27c8afe684SRob Clark struct msm_gem_object { 28c8afe684SRob Clark struct drm_gem_object base; 29c8afe684SRob Clark 30c8afe684SRob Clark uint32_t flags; 31c8afe684SRob Clark 327198e6b0SRob Clark /* And object is either: 337198e6b0SRob Clark * inactive - on priv->inactive_list 347198e6b0SRob Clark * active - on one one of the gpu's active_list.. well, at 357198e6b0SRob Clark * least for now we don't have (I don't think) hw sync between 367198e6b0SRob Clark * 2d and 3d one devices which have both, meaning we need to 377198e6b0SRob Clark * block on submit if a bo is already on other ring 387198e6b0SRob Clark * 397198e6b0SRob Clark */ 40c8afe684SRob Clark struct list_head mm_list; 417198e6b0SRob Clark struct msm_gpu *gpu; /* non-null if active */ 42bf6811f3SRob Clark uint32_t read_fence, write_fence; 437198e6b0SRob Clark 447198e6b0SRob Clark /* Transiently in the process of submit ioctl, objects associated 457198e6b0SRob Clark * with the submit are on submit->bo_list.. this only lasts for 467198e6b0SRob Clark * the duration of the ioctl, so one bo can never be on multiple 477198e6b0SRob Clark * submit lists. 487198e6b0SRob Clark */ 497198e6b0SRob Clark struct list_head submit_entry; 507198e6b0SRob Clark 51c8afe684SRob Clark struct page **pages; 52c8afe684SRob Clark struct sg_table *sgt; 53c8afe684SRob Clark void *vaddr; 54c8afe684SRob Clark 55c8afe684SRob Clark struct { 56c8afe684SRob Clark // XXX 57c8afe684SRob Clark uint32_t iova; 58c8afe684SRob Clark } domain[NUM_DOMAINS]; 597198e6b0SRob Clark 607198e6b0SRob Clark /* normally (resv == &_resv) except for imported bo's */ 617198e6b0SRob Clark struct reservation_object *resv; 627198e6b0SRob Clark struct reservation_object _resv; 63871d812aSRob Clark 64871d812aSRob Clark /* For physically contiguous buffers. Used when we don't have 65072f1f91SRob Clark * an IOMMU. Also used for stolen/splashscreen buffer. 66871d812aSRob Clark */ 67871d812aSRob Clark struct drm_mm_node *vram_node; 68c8afe684SRob Clark }; 69c8afe684SRob Clark #define to_msm_bo(x) container_of(x, struct msm_gem_object, base) 70c8afe684SRob Clark 717198e6b0SRob Clark static inline bool is_active(struct msm_gem_object *msm_obj) 727198e6b0SRob Clark { 737198e6b0SRob Clark return msm_obj->gpu != NULL; 747198e6b0SRob Clark } 757198e6b0SRob Clark 7669193e50SRob Clark static inline uint32_t msm_gem_fence(struct msm_gem_object *msm_obj, 7769193e50SRob Clark uint32_t op) 7869193e50SRob Clark { 7969193e50SRob Clark uint32_t fence = 0; 8069193e50SRob Clark 8169193e50SRob Clark if (op & MSM_PREP_READ) 8269193e50SRob Clark fence = msm_obj->write_fence; 8369193e50SRob Clark if (op & MSM_PREP_WRITE) 8469193e50SRob Clark fence = max(fence, msm_obj->read_fence); 8569193e50SRob Clark 8669193e50SRob Clark return fence; 8769193e50SRob Clark } 8869193e50SRob Clark 897198e6b0SRob Clark #define MAX_CMDS 4 907198e6b0SRob Clark 917198e6b0SRob Clark /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc, 927198e6b0SRob Clark * associated with the cmdstream submission for synchronization (and 937198e6b0SRob Clark * make it easier to unwind when things go wrong, etc). This only 947198e6b0SRob Clark * lasts for the duration of the submit-ioctl. 957198e6b0SRob Clark */ 967198e6b0SRob Clark struct msm_gem_submit { 977198e6b0SRob Clark struct drm_device *dev; 987198e6b0SRob Clark struct msm_gpu *gpu; 991a370be9SRob Clark struct list_head node; /* node in gpu submit_list */ 1007198e6b0SRob Clark struct list_head bo_list; 1017198e6b0SRob Clark struct ww_acquire_ctx ticket; 1027198e6b0SRob Clark uint32_t fence; 103340faef2SRob Clark bool valid; /* true if no cmdstream patching needed */ 1047198e6b0SRob Clark unsigned int nr_cmds; 1057198e6b0SRob Clark unsigned int nr_bos; 1067198e6b0SRob Clark struct { 1077198e6b0SRob Clark uint32_t type; 1087198e6b0SRob Clark uint32_t size; /* in dwords */ 1097198e6b0SRob Clark uint32_t iova; 110a7d3c950SRob Clark uint32_t idx; /* cmdstream buffer idx in bos[] */ 1117198e6b0SRob Clark } cmd[MAX_CMDS]; 1127198e6b0SRob Clark struct { 1137198e6b0SRob Clark uint32_t flags; 1147198e6b0SRob Clark struct msm_gem_object *obj; 1157198e6b0SRob Clark uint32_t iova; 1167198e6b0SRob Clark } bos[0]; 1177198e6b0SRob Clark }; 1187198e6b0SRob Clark 119c8afe684SRob Clark #endif /* __MSM_GEM_H__ */ 120