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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2022 Intel Corporation
4 */
5
6#ifndef _XE_GT_MCR_H_
7#define _XE_GT_MCR_H_
8
9#include "regs/xe_reg_defs.h"
10#include "xe_gt_topology.h"
11
12struct drm_printer;
13struct xe_gt;
14
15void xe_gt_mcr_init_early(struct xe_gt *gt);
16void xe_gt_mcr_init(struct xe_gt *gt);
17
18void xe_gt_mcr_set_implicit_defaults(struct xe_gt *gt);
19
20u32 xe_gt_mcr_unicast_read(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
21 int group, int instance);
22u32 xe_gt_mcr_unicast_read_any(struct xe_gt *gt, struct xe_reg_mcr mcr_reg);
23
24void xe_gt_mcr_unicast_write(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
25 u32 value, int group, int instance);
26void xe_gt_mcr_multicast_write(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
27 u32 value);
28
29void xe_gt_mcr_steering_dump(struct xe_gt *gt, struct drm_printer *p);
30void xe_gt_mcr_get_dss_steering(struct xe_gt *gt, unsigned int dss, u16 *group, u16 *instance);
31
32/*
33 * Loop over each DSS and determine the group and instance IDs that
34 * should be used to steer MCR accesses toward this DSS.
35 * @dss: DSS ID to obtain steering for
36 * @gt: GT structure
37 * @group: steering group ID, data type: u16
38 * @instance: steering instance ID, data type: u16
39 */
40#define for_each_dss_steering(dss, gt, group, instance) \
41 for_each_dss((dss), (gt)) \
42 for_each_if((xe_gt_mcr_get_dss_steering((gt), (dss), &(group), &(instance)), true))
43
44/*
45 * Loop over each DSS available for geometry and determine the group and
46 * instance IDs that should be used to steer MCR accesses toward this DSS.
47 * @dss: DSS ID to obtain steering for
48 * @gt: GT structure
49 * @group: steering group ID, data type: u16
50 * @instance: steering instance ID, data type: u16
51 */
52#define for_each_geometry_dss(dss, gt, group, instance) \
53 for_each_dss_steering(dss, gt, group, instance) \
54 if (xe_gt_has_geometry_dss(gt, dss))
55
56/*
57 * Loop over each DSS available for compute and determine the group and
58 * instance IDs that should be used to steer MCR accesses toward this DSS.
59 * @dss: DSS ID to obtain steering for
60 * @gt: GT structure
61 * @group: steering group ID, data type: u16
62 * @instance: steering instance ID, data type: u16
63 */
64#define for_each_compute_dss(dss, gt, group, instance) \
65 for_each_dss_steering(dss, gt, group, instance) \
66 if (xe_gt_has_compute_dss(gt, dss))
67
68#endif /* _XE_GT_MCR_H_ */