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c36752fe3d
The simulator ring buffer DMA interface supports buffers of the following sizes: 4, 8, 12 and 16K. At present, it is configured to 4K and it happens to match with the kernel PAGE_SIZE, which is used to wrap back the GET/PUT pointers once 4K is reached. However, this is not always true; for instance, take 64K pages. Hence, replace PAGE_SIZE with SIM_BFR_SIZE. Introduce macro NVGPU_CPU_PAGE_SIZE which aliases to PAGE_SIZE and replace latter with former. Bug 200658101 Jira NVGPU-6018 Change-Id: I83cc62b87291734015c51f3e5a98173549e065de Signed-off-by: Antony Clince Alex <aalex@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2420728 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/*
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* Copyright (c) 2017-2020, 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 NVGPU_FECS_TRACE_LINUX_H
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#define NVGPU_FECS_TRACE_LINUX_H
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#include <nvgpu/types.h>
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#define GK20A_CTXSW_TRACE_NUM_DEVS 1
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#define GK20A_CTXSW_TRACE_MAX_VM_RING_SIZE (128*NVGPU_CPU_PAGE_SIZE)
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struct file;
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struct inode;
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struct gk20a;
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struct nvgpu_tsg;
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struct nvgpu_channel;
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struct vm_area_struct;
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struct poll_table_struct;
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int gk20a_ctxsw_trace_init(struct gk20a *g);
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void gk20a_ctxsw_trace_cleanup(struct gk20a *g);
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int gk20a_ctxsw_dev_mmap(struct file *filp, struct vm_area_struct *vma);
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int gk20a_ctxsw_dev_release(struct inode *inode, struct file *filp);
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int gk20a_ctxsw_dev_open(struct inode *inode, struct file *filp);
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long gk20a_ctxsw_dev_ioctl(struct file *filp,
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unsigned int cmd, unsigned long arg);
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ssize_t gk20a_ctxsw_dev_read(struct file *filp, char __user *buf,
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size_t size, loff_t *offs);
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unsigned int gk20a_ctxsw_dev_poll(struct file *filp,
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struct poll_table_struct *pts);
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#endif /*NVGPU_FECS_TRACE_LINUX_H */
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