cc1aeedb98
The infrastructure includes parsing of the firmware image, initialising
FW-side structures, handling the kernel and firmware command
ringbuffers and starting & stopping the firmware processor.
This patch also adds the necessary support code for the META firmware
processor.
Changes since v8:
- Fix documentation for pvr_fwccb_process()
- Corrected license identifiers
Changes since v6:
- Add a minimum retry count to pvr_kccb_reserve_slot_sync()
Changes since v5:
- Add workaround for BRN 71242
- Attempt to recover GPU on MMU flush command failure
Changes since v4:
- Remove use of drm_gem_shmem_get_pages()
- Remove interrupt resource name
Changes since v3:
- Hard reset FW processor on watchdog timeout
- Switch to threaded IRQ
- Rework FW object creation/initialisation to aid hard reset
- Added MODULE_FIRMWARE()
- Use drm_dev_{enter,exit}
Signed-off-by: Sarah Walker <sarah.walker@imgtec.com>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Link: https://lore.kernel.org/r/bb52a8dc84f296b37dc6668dfe8fbaf2ba551139.1700668843.git.donald.robson@imgtec.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
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/* Copyright (c) 2023 Imagination Technologies Ltd. */
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#ifndef PVR_FW_TRACE_H
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#define PVR_FW_TRACE_H
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#include <drm/drm_file.h>
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#include <linux/types.h>
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#include "pvr_rogue_fwif.h"
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/* Forward declaration from pvr_device.h. */
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struct pvr_device;
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/* Forward declaration from pvr_gem.h. */
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struct pvr_fw_object;
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/* Forward declarations from pvr_rogue_fwif.h */
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struct rogue_fwif_tracebuf;
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struct rogue_fwif_tracebuf_space;
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/**
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* struct pvr_fw_trace_buffer - Structure representing a trace buffer
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*/
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struct pvr_fw_trace_buffer {
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/** @buf_obj: FW buffer object representing trace buffer. */
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struct pvr_fw_object *buf_obj;
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/** @buf: Pointer to CPU mapping of trace buffer. */
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u32 *buf;
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/**
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* @tracebuf_space: Pointer to FW tracebuf_space structure for this
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* trace buffer.
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*/
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struct rogue_fwif_tracebuf_space *tracebuf_space;
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};
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/**
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* struct pvr_fw_trace - Device firmware trace data
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*/
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struct pvr_fw_trace {
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/**
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* @tracebuf_ctrl_obj: Object representing FW trace buffer control
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* structure.
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*/
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struct pvr_fw_object *tracebuf_ctrl_obj;
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/**
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* @tracebuf_ctrl: Pointer to CPU mapping of FW trace buffer control
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* structure.
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*/
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struct rogue_fwif_tracebuf *tracebuf_ctrl;
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/**
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* @buffers: Array representing the actual trace buffers owned by this
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* device.
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*/
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struct pvr_fw_trace_buffer buffers[ROGUE_FW_THREAD_MAX];
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/** @group_mask: Mask of enabled trace groups. */
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u32 group_mask;
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};
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int pvr_fw_trace_init(struct pvr_device *pvr_dev);
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void pvr_fw_trace_fini(struct pvr_device *pvr_dev);
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#if defined(CONFIG_DEBUG_FS)
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/* Forward declaration from <linux/dcache.h>. */
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struct dentry;
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void pvr_fw_trace_mask_update(struct pvr_device *pvr_dev, u32 old_mask,
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u32 new_mask);
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void pvr_fw_trace_debugfs_init(struct pvr_device *pvr_dev, struct dentry *dir);
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#endif /* defined(CONFIG_DEBUG_FS) */
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#endif /* PVR_FW_TRACE_H */
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