93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* Tegra Graphics Host Hardware Context Interface
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*
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* Copyright (c) 2010-2014, NVIDIA Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __NVHOST_HWCTX_H
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#define __NVHOST_HWCTX_H
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#include <linux/string.h>
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#include <linux/kref.h>
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#include <linux/nvhost.h>
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struct nvhost_channel;
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struct nvhost_cdma;
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struct mem_mgr;
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struct nvhost_dbg_session;
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struct nvhost_hwctx {
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struct kref ref;
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struct nvhost_hwctx_handler *h;
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struct nvhost_channel *channel;
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bool valid;
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bool has_timedout;
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u32 timeout_ms_max;
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bool timeout_debug_dump;
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struct mem_mgr *memmgr;
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struct mem_handle *error_notifier_ref;
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struct nvhost_notification *error_notifier;
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void *error_notifier_va;
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struct mutex error_notifier_mutex;
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u32 save_incrs;
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u32 save_slots;
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u32 restore_incrs;
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void *priv; /* chip support state */
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struct list_head as_share_bound_list_node;
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struct nvhost_as_share *as_share;
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struct nvhost_dbg_session *dbg_session;
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};
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struct nvhost_hwctx_handler {
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struct nvhost_hwctx * (*alloc) (struct nvhost_hwctx_handler *h,
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struct nvhost_channel *ch);
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void (*get) (struct nvhost_hwctx *ctx);
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void (*put) (struct nvhost_hwctx *ctx);
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void (*save_push) (struct nvhost_hwctx *ctx,
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struct nvhost_cdma *cdma);
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void (*restore_push) (struct nvhost_hwctx *ctx,
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struct nvhost_cdma *cdma);
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u32 syncpt;
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u32 waitbase;
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void *priv;
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};
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struct hwctx_reginfo {
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unsigned int offset:12;
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unsigned int count:16;
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unsigned int type:2;
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unsigned int rst_off; /* restore reg offset */
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};
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enum {
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HWCTX_REGINFO_DIRECT = 0,
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HWCTX_REGINFO_INDIRECT,
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HWCTX_REGINFO_INDIRECT_4X
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};
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#define HWCTX_REGINFO(offset, count, type) \
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{offset, count, HWCTX_REGINFO_##type, offset}
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#define HWCTX_REGINFO_RST(offset, count, type, rst) \
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{offset, count, HWCTX_REGINFO_##type, rst}
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#endif
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