62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/* 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;
|
|
};
|
|
|
|
/**
|
|
* 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);
|
|
|
|
/**
|
|
* xe_pat_dump - Dump PAT table
|
|
* @gt: GT structure
|
|
* @p: Printer to dump info to
|
|
*/
|
|
void 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
|