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/*
* Copyright © 2013 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#ifndef __IGT_DEBUGFS_H__
#define __IGT_DEBUGFS_H__
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
enum pipe;
const char *igt_debugfs_mount(void);
char *igt_debugfs_path(int device, char *path, int pathlen);
int igt_debugfs_dir(int device);
int igt_debugfs_connector_dir(int device, char *conn_name, int mode);
int igt_debugfs_pipe_dir(int device, int pipe, int mode);
int igt_debugfs_open(int fd, const char *filename, int mode);
bool igt_debugfs_exists(int fd, const char *filename, int mode);
void __igt_debugfs_read(int fd, const char *filename, char *buf, int size);
void __igt_debugfs_write(int fd, const char *filename, const char *buf, int size);
int igt_debugfs_simple_read(int dir, const char *filename, char *buf, int size);
bool igt_debugfs_search(int fd, const char *filename, const char *substring);
int igt_debugfs_gt_dir(int device, unsigned int gt);
int igt_debugfs_gt_open(int device, unsigned int gt, const char *filename,
int mode);
/**
* igt_debugfs_read:
* @filename: name of the debugfs file
* @buf: buffer where the contents will be stored, allocated by the caller.
*
* This is just a convenience wrapper for __igt_debugfs_read. See its
* documentation.
*/
#define igt_debugfs_read(fd, filename, buf) \
__igt_debugfs_read(fd, (filename), (buf), sizeof(buf))
/**
* igt_debugfs_write:
* @fd: the drm device file fd
* @filename: name of the debugfs file
* @buf: buffer to be written to the debugfs file
*
* This is just a convenience wrapper for __igt_debugfs_write. See its
* documentation.
*/
#define igt_debugfs_write(fd, filename, buf) \
__igt_debugfs_write(fd, (filename), (buf), sizeof(buf))
void igt_hpd_storm_set_threshold(int fd, unsigned int threshold);
void igt_hpd_storm_reset(int fd);
bool igt_hpd_storm_detected(int fd);
void igt_require_hpd_storm_ctl(int fd);
bool igt_ignore_long_hpd(int fd, bool enable);
/*
* Drop caches
*/
/**
* DROP_UNBOUND:
*
* Drop all currently unbound gem buffer objects from the cache.
*/
#define DROP_UNBOUND 0x1
/**
* DROP_BOUND:
*
* Drop all inactive objects which are bound into some gpu address space.
*/
#define DROP_BOUND 0x2
/**
* DROP_RETIRE:
*
* Wait for all outstanding gpu commands to complete, but do not take any
* further actions.
*/
#define DROP_RETIRE 0x4
/**
* DROP_ACTIVE:
*
* Also drop active objects once retired.
*/
#define DROP_ACTIVE 0x8
/**
* DROP_FREED:
*
* Also drop freed objects.
*/
#define DROP_FREED 0x10
/**
* DROP_SHRINK_ALL:
*
* Force all unpinned buffers to be evicted from their GTT and returned to the
* system.
*/
#define DROP_SHRINK_ALL 0x20
/**
* DROP_IDLE:
*
* Flush the driver's idle_worker, releasing internal caches and wakerefs.
*/
#define DROP_IDLE 0x40
/**
* DROP_RESET_ACTIVE:
*
* Cancel all outstanding requests by forcing a gpu reset
*/
#define DROP_RESET_ACTIVE 0x80
/**
* DROP_RESET_SEQNO:
*
* Reset the global request seqno counter back to 0
*/
#define DROP_RESET_SEQNO 0x100
/**
* DROP_RCU:
*
* Performs rcu_barrier() and waits for an RCU grace period to complete,
* which will flush any RCU callbacks and deferred tasks.
*/
#define DROP_RCU 0x200
/**
* DROP_ALL:
*
* All of the above DROP_ flags combined.
*/
#define DROP_ALL (DROP_UNBOUND | \
DROP_BOUND | \
DROP_SHRINK_ALL | \
DROP_RETIRE | \
DROP_ACTIVE | \
DROP_FREED | \
DROP_IDLE)
void igt_reset_fifo_underrun_reporting(int drm_fd);
bool igt_drop_caches_has(int fd, uint64_t val);
void igt_drop_caches_set(int fd, uint64_t val);
static inline void rcu_barrier(int fd)
{
igt_drop_caches_set(fd, DROP_RCU);
}
/*
* Put the driver into a stable (quiescent) state and get the current number of
* gem buffer objects
*/
int igt_get_stable_obj_count(int driver);
void __igt_debugfs_dump(int device, const char *filename, int level);
#define igt_debugfs_dump(d, f) __igt_debugfs_dump(d, f, IGT_LOG_DEBUG)
#endif /* __IGT_DEBUGFS_H__ */
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