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drm/xe/vf: Introduce helpers to access GGTT configuration

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In upcoming patch we want to separate tile-oriented VF functions
from GT-oriented functions and to allow the former access a GGTT
configuration stored at GT level we need to provide some helpers.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Tomasz Lis <tomasz.lis@intel.com>
Reviewed-by: Tomasz Lis<tomasz.lis@intel.com>
Link: https://lore.kernel.org/r/20250602103325.549-2-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2025-06-02 12:33:23 +02:00
parent 28b996ce73
commit ce2ae1b97a
2 changed files with 38 additions and 1 deletions
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34
drivers/gpu/drm/xe/xe_gt_sriov_vf.c
View File

@ -561,6 +561,40 @@ u64 xe_gt_sriov_vf_lmem(struct xe_gt *gt)
return gt->sriov.vf.self_config.lmem_size;
}
/**
* xe_gt_sriov_vf_ggtt - VF GGTT configuration.
* @gt: the &xe_gt
*
* This function is for VF use only.
*
* Return: size of the GGTT assigned to VF.
*/
u64 xe_gt_sriov_vf_ggtt(struct xe_gt *gt)
{
xe_gt_assert(gt, IS_SRIOV_VF(gt_to_xe(gt)));
xe_gt_assert(gt, gt->sriov.vf.guc_version.major);
xe_gt_assert(gt, gt->sriov.vf.self_config.ggtt_size);
return gt->sriov.vf.self_config.ggtt_size;
}
/**
* xe_gt_sriov_vf_ggtt_base - VF GGTT base offset.
* @gt: the &xe_gt
*
* This function is for VF use only.
*
* Return: base offset of the GGTT assigned to VF.
*/
u64 xe_gt_sriov_vf_ggtt_base(struct xe_gt *gt)
{
xe_gt_assert(gt, IS_SRIOV_VF(gt_to_xe(gt)));
xe_gt_assert(gt, gt->sriov.vf.guc_version.major);
xe_gt_assert(gt, gt->sriov.vf.self_config.ggtt_size);
return gt->sriov.vf.self_config.ggtt_base;
}
/**
* xe_gt_sriov_vf_ggtt_shift - Return shift in GGTT range due to VF migration
* @gt: the &xe_gt struct instance

5
drivers/gpu/drm/xe/xe_gt_sriov_vf.h
View File

@ -20,7 +20,6 @@ int xe_gt_sriov_vf_query_runtime(struct xe_gt *gt);
int xe_gt_sriov_vf_prepare_ggtt(struct xe_gt *gt);
int xe_gt_sriov_vf_balloon_ggtt_locked(struct xe_gt *gt);
void xe_gt_sriov_vf_deballoon_ggtt_locked(struct xe_gt *gt);
s64 xe_gt_sriov_vf_ggtt_shift(struct xe_gt *gt);
void xe_gt_sriov_vf_fixup_ggtt_nodes(struct xe_gt *gt, s64 shift);
int xe_gt_sriov_vf_notify_resfix_done(struct xe_gt *gt);
void xe_gt_sriov_vf_migrated_event_handler(struct xe_gt *gt);
@ -28,6 +27,10 @@ void xe_gt_sriov_vf_migrated_event_handler(struct xe_gt *gt);
u32 xe_gt_sriov_vf_gmdid(struct xe_gt *gt);
u16 xe_gt_sriov_vf_guc_ids(struct xe_gt *gt);
u64 xe_gt_sriov_vf_lmem(struct xe_gt *gt);
u64 xe_gt_sriov_vf_ggtt(struct xe_gt *gt);
u64 xe_gt_sriov_vf_ggtt_base(struct xe_gt *gt);
s64 xe_gt_sriov_vf_ggtt_shift(struct xe_gt *gt);
u32 xe_gt_sriov_vf_read32(struct xe_gt *gt, struct xe_reg reg);
void xe_gt_sriov_vf_write32(struct xe_gt *gt, struct xe_reg reg, u32 val);