Cregit: Linux 6.19: xe

Contributors: 6
Author	Tokens	Token Proportion	Commits	Commit Proportion
Matthew Auld	40	42.11%	1	10.00%
Lucas De Marchi	29	30.53%	4	40.00%
Matt Roper	20	21.05%	2	20.00%
Xin Wang	4	4.21%	1	10.00%
Matthew Brost	1	1.05%	1	10.00%
Michal Wajdeczko	1	1.05%	1	10.00%
Total	95		10

/* SPDX-License-Identifier: MIT */
/*
 * Copyright © 2023 Intel Corporation
 */

#ifndef _XE_PAT_H_
#define _XE_PAT_H_

#include <linux/types.h>

struct drm_printer;
struct xe_device;
struct xe_gt;

/**
 * struct xe_pat_table_entry - The pat_index encoding and other meta information.
 */
struct xe_pat_table_entry {
	/**
	 * @value: The platform specific value encoding the various memory
	 * attributes (this maps to some fixed pat_index). So things like
	 * caching, coherency, compression etc can be encoded here.
	 */
	u32 value;

	/**
	 * @coh_mode: The GPU coherency mode that @value maps to.
	 */
#define XE_COH_NONE          1
#define XE_COH_AT_LEAST_1WAY 2
	u16 coh_mode;

	/**
	 * @valid: Set to 1 if the entry is valid, 0 if it's reserved.
	 */
	u16 valid;
};

/**
 * xe_pat_init_early - SW initialization, setting up data based on device
 * @xe: xe device
 */
void xe_pat_init_early(struct xe_device *xe);

/**
 * xe_pat_init - Program HW PAT table
 * @gt: GT structure
 */
void xe_pat_init(struct xe_gt *gt);

int xe_pat_dump(struct xe_gt *gt, struct drm_printer *p);

/**
 * xe_pat_index_get_coh_mode - Extract the coherency mode for the given
 * pat_index.
 * @xe: xe device
 * @pat_index: The pat_index to query
 */
u16 xe_pat_index_get_coh_mode(struct xe_device *xe, u16 pat_index);

#endif

xe_pat.h