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 24c8afe684SRob Clark struct msm_gem_object { 25c8afe684SRob Clark struct drm_gem_object base; 26c8afe684SRob Clark 27c8afe684SRob Clark uint32_t flags; 28c8afe684SRob Clark 297198e6b0SRob Clark /* And object is either: 307198e6b0SRob Clark * inactive - on priv->inactive_list 317198e6b0SRob Clark * active - on one one of the gpu's active_list.. well, at 327198e6b0SRob Clark * least for now we don't have (I don't think) hw sync between 337198e6b0SRob Clark * 2d and 3d one devices which have both, meaning we need to 347198e6b0SRob Clark * block on submit if a bo is already on other ring 357198e6b0SRob Clark * 367198e6b0SRob Clark */ 37c8afe684SRob Clark struct list_head mm_list; 387198e6b0SRob Clark struct msm_gpu *gpu; /* non-null if active */ 39bf6811f3SRob Clark uint32_t read_fence, write_fence; 407198e6b0SRob Clark 417198e6b0SRob Clark /* Transiently in the process of submit ioctl, objects associated 427198e6b0SRob Clark * with the submit are on submit->bo_list.. this only lasts for 437198e6b0SRob Clark * the duration of the ioctl, so one bo can never be on multiple 447198e6b0SRob Clark * submit lists. 457198e6b0SRob Clark */ 467198e6b0SRob Clark struct list_head submit_entry; 477198e6b0SRob Clark 48c8afe684SRob Clark struct page **pages; 49c8afe684SRob Clark struct sg_table *sgt; 50c8afe684SRob Clark void *vaddr; 51c8afe684SRob Clark 52c8afe684SRob Clark struct { 53c8afe684SRob Clark // XXX 54c8afe684SRob Clark uint32_t iova; 55c8afe684SRob Clark } domain[NUM_DOMAINS]; 567198e6b0SRob Clark 577198e6b0SRob Clark /* normally (resv == &_resv) except for imported bo's */ 587198e6b0SRob Clark struct reservation_object *resv; 597198e6b0SRob Clark struct reservation_object _resv; 60871d812aSRob Clark 61871d812aSRob Clark /* For physically contiguous buffers. Used when we don't have 62871d812aSRob Clark * an IOMMU. 63871d812aSRob Clark */ 64871d812aSRob Clark struct drm_mm_node *vram_node; 65c8afe684SRob Clark }; 66c8afe684SRob Clark #define to_msm_bo(x) container_of(x, struct msm_gem_object, base) 67c8afe684SRob Clark 687198e6b0SRob Clark static inline bool is_active(struct msm_gem_object *msm_obj) 697198e6b0SRob Clark { 707198e6b0SRob Clark return msm_obj->gpu != NULL; 717198e6b0SRob Clark } 727198e6b0SRob Clark 7369193e50SRob Clark static inline uint32_t msm_gem_fence(struct msm_gem_object *msm_obj, 7469193e50SRob Clark uint32_t op) 7569193e50SRob Clark { 7669193e50SRob Clark uint32_t fence = 0; 7769193e50SRob Clark 7869193e50SRob Clark if (op & MSM_PREP_READ) 7969193e50SRob Clark fence = msm_obj->write_fence; 8069193e50SRob Clark if (op & MSM_PREP_WRITE) 8169193e50SRob Clark fence = max(fence, msm_obj->read_fence); 8269193e50SRob Clark 8369193e50SRob Clark return fence; 8469193e50SRob Clark } 8569193e50SRob Clark 867198e6b0SRob Clark #define MAX_CMDS 4 877198e6b0SRob Clark 887198e6b0SRob Clark /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc, 897198e6b0SRob Clark * associated with the cmdstream submission for synchronization (and 907198e6b0SRob Clark * make it easier to unwind when things go wrong, etc). This only 917198e6b0SRob Clark * lasts for the duration of the submit-ioctl. 927198e6b0SRob Clark */ 937198e6b0SRob Clark struct msm_gem_submit { 947198e6b0SRob Clark struct drm_device *dev; 957198e6b0SRob Clark struct msm_gpu *gpu; 967198e6b0SRob Clark struct list_head bo_list; 977198e6b0SRob Clark struct ww_acquire_ctx ticket; 987198e6b0SRob Clark uint32_t fence; 997198e6b0SRob Clark bool valid; 1007198e6b0SRob Clark unsigned int nr_cmds; 1017198e6b0SRob Clark unsigned int nr_bos; 1027198e6b0SRob Clark struct { 1037198e6b0SRob Clark uint32_t type; 1047198e6b0SRob Clark uint32_t size; /* in dwords */ 1057198e6b0SRob Clark uint32_t iova; 106a7d3c950SRob Clark uint32_t idx; /* cmdstream buffer idx in bos[] */ 1077198e6b0SRob Clark } cmd[MAX_CMDS]; 1087198e6b0SRob Clark struct { 1097198e6b0SRob Clark uint32_t flags; 1107198e6b0SRob Clark struct msm_gem_object *obj; 1117198e6b0SRob Clark uint32_t iova; 1127198e6b0SRob Clark } bos[0]; 1137198e6b0SRob Clark }; 1147198e6b0SRob Clark 115c8afe684SRob Clark #endif /* __MSM_GEM_H__ */ 116