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261488ef83
Implement host1x_syncpt_get_shim_info function for host1x-emu driver and add it to the dynamic dispatch mechanism in host1x-fence. This function provides clients with the physical address of syncpoint aperture, stride and number of syncpoints, which is needed by various client drivers like ISP, VI, PVA, GPU etc Jira HOSTX-5971 Change-Id: I50e60222a035228c981dfa993cb0088e1d15dad2 Signed-off-by: Mainak Sen <msen@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3323327 GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Reviewed-by: Raghavendra Vishnu Kumar <rvk@nvidia.com> Reviewed-by: Amitabh Dutta <amitabhd@nvidia.com>
91 lines
3.2 KiB
C
91 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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#ifndef __LINUX_HOST1X_H
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#define __LINUX_HOST1X_H
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#include <linux/device.h>
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#include <linux/dma-direction.h>
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#include <linux/dma-fence.h>
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#include <linux/spinlock.h>
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#include <linux/timekeeping.h>
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#include <linux/types.h>
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#include <linux/symbol-emu.h>
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/**
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* TODO: Remove header after pre-silicon verification
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* This header is required till emulation driver verification is done on Tho-r
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* VDK platform. Since we are exporting new kernel symbol, header with declarion
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* of modified symbols is required
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*
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* Changed cannot be added in orignal Host1x driver header files ("linux/nvhost.h"
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* and "host1x-next.h") due to Host1x driver and other dependent drivers. Note in
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* Tho-r verification config both the driver will co-exist.
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*
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* Some data structure are also re-delacred in this header for case where client
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* driver wants to verify over emulation driver.
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*/
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/*
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* host1x syncpoints
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*/
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#define HOST1X_SYNCPT_CLIENT_MANAGED (1 << 0)
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#define HOST1X_SYNCPT_HAS_BASE (1 << 1)
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#define HOST1X_SYNCPT_GPU (1 << 2)
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struct host1x;
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struct host1x_syncpt;
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HOST1X_EMU_EXPORT_DECL(u64, host1x_get_dma_mask(struct host1x *host1x));
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HOST1X_EMU_EXPORT_DECL(struct host1x_syncpt*, host1x_syncpt_get_by_id(
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struct host1x *host, u32 id));
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HOST1X_EMU_EXPORT_DECL(struct host1x_syncpt*, host1x_syncpt_get_by_id_noref(
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struct host1x *host, u32 id));
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HOST1X_EMU_EXPORT_DECL(struct host1x_syncpt*, host1x_syncpt_get(
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struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(u32, host1x_syncpt_id(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(u32, host1x_syncpt_read_min(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(u32, host1x_syncpt_read_max(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(u32, host1x_syncpt_read(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(int, host1x_syncpt_incr(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(u32, host1x_syncpt_incr_max(struct host1x_syncpt *sp,
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u32 incrs));
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HOST1X_EMU_EXPORT_DECL(void, host1x_syncpt_fence_scan(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(int, host1x_syncpt_wait_ts(struct host1x_syncpt *sp,
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u32 thresh, long timeout, u32 *value, ktime_t *ts));
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HOST1X_EMU_EXPORT_DECL(int, host1x_syncpt_wait(struct host1x_syncpt *sp,
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u32 thresh, long timeout, u32 *value));
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HOST1X_EMU_EXPORT_DECL(void, host1x_syncpt_put(struct host1x_syncpt *sp));
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HOST1X_EMU_EXPORT_DECL(struct host1x_syncpt*, host1x_syncpt_alloc(struct host1x *host,
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unsigned long flags,
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const char *name));
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HOST1X_EMU_EXPORT_DECL(struct dma_fence*, host1x_fence_create(struct host1x_syncpt *sp, u32 threshold,
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bool timeout));
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HOST1X_EMU_EXPORT_DECL(int, host1x_fence_extract(struct dma_fence *fence, u32 *id, u32 *threshold));
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HOST1X_EMU_EXPORT_DECL(int, host1x_fence_get_node(struct dma_fence *fence));
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HOST1X_EMU_EXPORT_DECL(void, host1x_fence_cancel(struct dma_fence *fence));
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HOST1X_EMU_EXPORT_DECL(int, host1x_syncpt_get_shim_info(struct host1x *host,
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phys_addr_t *base,
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u32 *stride,
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u32 *num_syncpts));
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#endif
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