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cc5bcef3f6
Add the upstream host1x driver with the 'Host1x/Tegra UAPI' series [0] applied. This driver will be built as an external module for use with the NVGPU driver on upstream Linux kernels. The following modifications have been made to the series posted upstream 1. Update the Makefile to always build the driver as a module 2. Remove the tests to see if CONFIG_DRM_TEGRA_STAGING is enabled 3. Rename the include/linux/host1x.h to include/linux/host1x-next.h to avoid conflicts with upstream headers when building as an external module. 4. Rename the include/uapi/linux/host1x.h to include/uapi/linux/host1x-next.h to avoid conflicts with upstream headers when building as an external module. 5. Rename the module that is built to be host1x-next.ko instead of host1x.ko to avoid any depmod conflicts with the upstream driver. [0] https://patchwork.ozlabs.org/project/linux-tegra/list/?series=215770 Bug 3156385 Change-Id: Ic60299546809097dd0e4a9a7157bce1491d9f794 Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2435801 Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: automaticguardword <automaticguardword@nvidia.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit
42 lines
886 B
C
42 lines
886 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Tegra host1x Channel
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*
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* Copyright (c) 2010-2013, NVIDIA Corporation.
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*/
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#ifndef __HOST1X_CHANNEL_H
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#define __HOST1X_CHANNEL_H
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#include <linux/io.h>
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#include <linux/kref.h>
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#include "cdma.h"
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struct host1x;
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struct host1x_channel;
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struct host1x_channel_list {
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struct host1x_channel *channels;
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unsigned long *allocated_channels;
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};
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struct host1x_channel {
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struct kref refcount;
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unsigned int id;
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struct mutex submitlock;
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void __iomem *regs;
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struct host1x_client *client;
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struct device *dev;
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struct host1x_cdma cdma;
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};
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/* channel list operations */
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int host1x_channel_list_init(struct host1x_channel_list *chlist,
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unsigned int num_channels);
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void host1x_channel_list_free(struct host1x_channel_list *chlist);
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struct host1x_channel *host1x_channel_get_index(struct host1x *host,
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unsigned int index);
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#endif
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