mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-08-28 05:52:17 +00:00
64192bb2e5
The guc_mmio_reg interface supports steering, but it is currently not implemented. This will allow the GuC to control steering of MMIO registers after save-restore and avoid reading from fused off MCR register instances. Fixes:9c57bc0865("drm/xe/lnl: Drop force_probe requirement") Signed-off-by: Jesus Narvaez <jesus.narvaez@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241212190100.3768068-1-jesus.narvaez@intel.com (cherry picked from commitee5a1321df) Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
74 lines
2.5 KiB
C
74 lines
2.5 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright © 2022 Intel Corporation
|
|
*/
|
|
|
|
#ifndef _XE_GT_MCR_H_
|
|
#define _XE_GT_MCR_H_
|
|
|
|
#include "regs/xe_reg_defs.h"
|
|
#include "xe_gt_topology.h"
|
|
|
|
struct drm_printer;
|
|
struct xe_gt;
|
|
|
|
void xe_gt_mcr_init_early(struct xe_gt *gt);
|
|
void xe_gt_mcr_init(struct xe_gt *gt);
|
|
|
|
void xe_gt_mcr_set_implicit_defaults(struct xe_gt *gt);
|
|
|
|
u32 xe_gt_mcr_unicast_read(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
|
|
int group, int instance);
|
|
u32 xe_gt_mcr_unicast_read_any(struct xe_gt *gt, struct xe_reg_mcr mcr_reg);
|
|
|
|
void xe_gt_mcr_unicast_write(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
|
|
u32 value, int group, int instance);
|
|
void xe_gt_mcr_multicast_write(struct xe_gt *gt, struct xe_reg_mcr mcr_reg,
|
|
u32 value);
|
|
|
|
bool xe_gt_mcr_get_nonterminated_steering(struct xe_gt *gt,
|
|
struct xe_reg_mcr reg_mcr,
|
|
u8 *group, u8 *instance);
|
|
|
|
void xe_gt_mcr_steering_dump(struct xe_gt *gt, struct drm_printer *p);
|
|
void xe_gt_mcr_get_dss_steering(struct xe_gt *gt, unsigned int dss, u16 *group, u16 *instance);
|
|
u32 xe_gt_mcr_steering_info_to_dss_id(struct xe_gt *gt, u16 group, u16 instance);
|
|
|
|
/*
|
|
* Loop over each DSS and determine the group and instance IDs that
|
|
* should be used to steer MCR accesses toward this DSS.
|
|
* @dss: DSS ID to obtain steering for
|
|
* @gt: GT structure
|
|
* @group: steering group ID, data type: u16
|
|
* @instance: steering instance ID, data type: u16
|
|
*/
|
|
#define for_each_dss_steering(dss, gt, group, instance) \
|
|
for_each_dss((dss), (gt)) \
|
|
for_each_if((xe_gt_mcr_get_dss_steering((gt), (dss), &(group), &(instance)), true))
|
|
|
|
/*
|
|
* Loop over each DSS available for geometry and determine the group and
|
|
* instance IDs that should be used to steer MCR accesses toward this DSS.
|
|
* @dss: DSS ID to obtain steering for
|
|
* @gt: GT structure
|
|
* @group: steering group ID, data type: u16
|
|
* @instance: steering instance ID, data type: u16
|
|
*/
|
|
#define for_each_geometry_dss(dss, gt, group, instance) \
|
|
for_each_dss_steering(dss, gt, group, instance) \
|
|
if (xe_gt_has_geometry_dss(gt, dss))
|
|
|
|
/*
|
|
* Loop over each DSS available for compute and determine the group and
|
|
* instance IDs that should be used to steer MCR accesses toward this DSS.
|
|
* @dss: DSS ID to obtain steering for
|
|
* @gt: GT structure
|
|
* @group: steering group ID, data type: u16
|
|
* @instance: steering instance ID, data type: u16
|
|
*/
|
|
#define for_each_compute_dss(dss, gt, group, instance) \
|
|
for_each_dss_steering(dss, gt, group, instance) \
|
|
if (xe_gt_has_compute_dss(gt, dss))
|
|
|
|
#endif /* _XE_GT_MCR_H_ */
|