/* * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __MSM_GEM_H__ #define __MSM_GEM_H__ #include <linux/reservation.h> #include "msm_drv.h" struct msm_gem_object { struct drm_gem_object base; uint32_t flags; /* And object is either: * inactive - on priv->inactive_list * active - on one one of the gpu's active_list.. well, at * least for now we don't have (I don't think) hw sync between * 2d and 3d one devices which have both, meaning we need to * block on submit if a bo is already on other ring * */ struct list_head mm_list; struct msm_gpu *gpu; /* non-null if active */ uint32_t read_fence, write_fence; /* Transiently in the process of submit ioctl, objects associated * with the submit are on submit->bo_list.. this only lasts for * the duration of the ioctl, so one bo can never be on multiple * submit lists. */ struct list_head submit_entry; struct page **pages; struct sg_table *sgt; void *vaddr; struct { // XXX uint32_t iova; } domain[NUM_DOMAINS]; /* normally (resv == &_resv) except for imported bo's */ struct reservation_object *resv; struct reservation_object _resv; /* For physically contiguous buffers. Used when we don't have * an IOMMU. */ struct drm_mm_node *vram_node; }; #define to_msm_bo(x) container_of(x, struct msm_gem_object, base) static inline bool is_active(struct msm_gem_object *msm_obj) { return msm_obj->gpu != NULL; } #define MAX_CMDS 4 /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc, * associated with the cmdstream submission for synchronization (and * make it easier to unwind when things go wrong, etc). This only * lasts for the duration of the submit-ioctl. */ struct msm_gem_submit { struct drm_device *dev; struct msm_gpu *gpu; struct list_head bo_list; struct ww_acquire_ctx ticket; uint32_t fence; bool valid; unsigned int nr_cmds; unsigned int nr_bos; struct { uint32_t type; uint32_t size; /* in dwords */ uint32_t iova; } cmd[MAX_CMDS]; struct { uint32_t flags; struct msm_gem_object *obj; uint32_t iova; } bos[0]; }; #endif /* __MSM_GEM_H__ */