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| author | Matthew Brost <matthew.brost@intel.com> | 2025-03-06 04:26:55 +0300 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2025-03-06 22:36:57 +0300 |
| commit | 8e5a5dc056b70c9e189eb9e5a5412e64cdc00ed8 (patch) | |
| tree | 4a78f03ebc18c2e6f0ed5c4ab4080bbd5178a6cb | |
| parent | d92eabb370ceb1e0d797f68cb06a751d3c216e82 (diff) | |
| download | linux-8e5a5dc056b70c9e189eb9e5a5412e64cdc00ed8.tar.xz | |
drm/xe: Add modparam for SVM notifier size
Useful to experiment with notifier size and how it affects performance.
v3:
- Pull missing changes including in following patch (Thomas)
v5:
- Spell out power of 2 (Thomas)
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-31-matthew.brost@intel.com
| -rw-r--r-- | drivers/gpu/drm/xe/xe_module.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_module.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_svm.c | 4 |
3 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_module.c b/drivers/gpu/drm/xe/xe_module.c index 7185a2cdf6e3..e861c694f336 100644 --- a/drivers/gpu/drm/xe/xe_module.c +++ b/drivers/gpu/drm/xe/xe_module.c @@ -22,9 +22,13 @@ struct xe_modparam xe_modparam = { .guc_log_level = 3, .force_probe = CONFIG_DRM_XE_FORCE_PROBE, .wedged_mode = 1, + .svm_notifier_size = 512, /* the rest are 0 by default */ }; +module_param_named(svm_notifier_size, xe_modparam.svm_notifier_size, uint, 0600); +MODULE_PARM_DESC(svm_notifier_size, "Set the svm notifier size(in MiB), must be power of 2"); + module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444); MODULE_PARM_DESC(force_execlist, "Force Execlist submission"); diff --git a/drivers/gpu/drm/xe/xe_module.h b/drivers/gpu/drm/xe/xe_module.h index 161a5e6f717f..5a3bfea8b7b4 100644 --- a/drivers/gpu/drm/xe/xe_module.h +++ b/drivers/gpu/drm/xe/xe_module.h @@ -22,6 +22,7 @@ struct xe_modparam { unsigned int max_vfs; #endif int wedged_mode; + u32 svm_notifier_size; }; extern struct xe_modparam xe_modparam; diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c index d3d78d3df493..d83fb694c5eb 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -6,6 +6,7 @@ #include "xe_bo.h" #include "xe_gt_tlb_invalidation.h" #include "xe_migrate.h" +#include "xe_module.h" #include "xe_pt.h" #include "xe_svm.h" #include "xe_ttm_vram_mgr.h" @@ -607,7 +608,8 @@ int xe_svm_init(struct xe_vm *vm) err = drm_gpusvm_init(&vm->svm.gpusvm, "Xe SVM", &vm->xe->drm, current->mm, xe_svm_devm_owner(vm->xe), 0, - vm->size, SZ_512M, &gpusvm_ops, fault_chunk_sizes, + vm->size, xe_modparam.svm_notifier_size * SZ_1M, + &gpusvm_ops, fault_chunk_sizes, ARRAY_SIZE(fault_chunk_sizes)); if (err) return err; |