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| 1 | +/* SPDX-License-Identifier: GPL-2.0-only */ |
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| 1 | 2 | /* |
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| 2 | 3 | * Tegra host1x Command DMA |
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| 3 | 4 | * |
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| 4 | 5 | * Copyright (c) 2010-2013, NVIDIA Corporation. |
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| 5 | | - * |
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| 6 | | - * This program is free software; you can redistribute it and/or modify it |
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| 7 | | - * under the terms and conditions of the GNU General Public License, |
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| 8 | | - * version 2, as published by the Free Software Foundation. |
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| 9 | | - * |
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| 10 | | - * This program is distributed in the hope it will be useful, but WITHOUT |
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| 11 | | - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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| 12 | | - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
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| 13 | | - * more details. |
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| 14 | | - * |
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| 15 | | - * You should have received a copy of the GNU General Public License |
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| 16 | | - * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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| 17 | 6 | */ |
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| 18 | 7 | |
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| 19 | 8 | #ifndef __HOST1X_CDMA_H |
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| 20 | 9 | #define __HOST1X_CDMA_H |
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| 21 | 10 | |
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| 22 | 11 | #include <linux/sched.h> |
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| 23 | | -#include <linux/semaphore.h> |
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| 12 | +#include <linux/completion.h> |
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| 24 | 13 | #include <linux/list.h> |
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| 25 | 14 | |
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| 26 | 15 | struct host1x_syncpt; |
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| .. | .. |
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| 69 | 58 | |
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| 70 | 59 | struct host1x_cdma { |
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| 71 | 60 | struct mutex lock; /* controls access to shared state */ |
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| 72 | | - struct semaphore sem; /* signalled when event occurs */ |
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| 73 | | - enum cdma_event event; /* event that sem is waiting for */ |
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| 61 | + struct completion complete; /* signalled when event occurs */ |
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| 62 | + enum cdma_event event; /* event that complete is waiting for */ |
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| 74 | 63 | unsigned int slots_used; /* pb slots used in current submit */ |
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| 75 | 64 | unsigned int slots_free; /* pb slots free in current submit */ |
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| 76 | 65 | unsigned int first_get; /* DMAGET value, where submit begins */ |
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| .. | .. |
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| 90 | 79 | int host1x_cdma_deinit(struct host1x_cdma *cdma); |
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| 91 | 80 | int host1x_cdma_begin(struct host1x_cdma *cdma, struct host1x_job *job); |
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| 92 | 81 | void host1x_cdma_push(struct host1x_cdma *cdma, u32 op1, u32 op2); |
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| 82 | +void host1x_cdma_push_wide(struct host1x_cdma *cdma, u32 op1, u32 op2, |
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| 83 | + u32 op3, u32 op4); |
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| 93 | 84 | void host1x_cdma_end(struct host1x_cdma *cdma, struct host1x_job *job); |
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| 94 | 85 | void host1x_cdma_update(struct host1x_cdma *cdma); |
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| 95 | 86 | void host1x_cdma_peek(struct host1x_cdma *cdma, u32 dmaget, int slot, |
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