Commit c56904f6 authored by Matthew Brost's avatar Matthew Brost
Browse files

drm/xe: Add always_migrate_to_vram modparam 



Used to show we can bounce memory multiple times which will happen once
a real migration policy is implemented. Can be removed once migration
policy is implemented.

v3:
 - Pull some changes into the previous patch (Thomas)
 - Better commit message (Thomas)

Signed-off-by: default avatarMatthew Brost <matthew.brost@intel.com>
Reviewed-by: default avatarThomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: default avatarHimal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-32-matthew.brost@intel.com
parent 8e5a5dc0

drivers/gpu/drm/xe/xe_module.c

+3 −0
Original line number Diff line number Diff line
@@ -29,6 +29,9 @@ struct xe_modparam xe_modparam = { 
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(always_migrate_to_vram, xe_modparam.always_migrate_to_vram, bool, 0444);

MODULE_PARM_DESC(always_migrate_to_vram, "Always migrate to VRAM on GPU fault");



module_param_named_unsafe(force_execlist, xe_modparam.force_execlist, bool, 0444);

MODULE_PARM_DESC(force_execlist, "Force Execlist submission");

drivers/gpu/drm/xe/xe_module.h

+1 −0
Original line number Diff line number Diff line
@@ -12,6 +12,7 @@ 
struct xe_modparam {

	bool force_execlist;

	bool probe_display;

	bool always_migrate_to_vram;

	u32 force_vram_bar_size;

	int guc_log_level;

	char *guc_firmware_path;

drivers/gpu/drm/xe/xe_svm.c

+3 −0
Original line number Diff line number Diff line
@@ -822,6 +822,9 @@ int xe_svm_handle_pagefault(struct xe_vm *vm, struct xe_vma *vma, 
	}

	drm_exec_fini(&exec);



	if (xe_modparam.always_migrate_to_vram)

		range->skip_migrate = false;



	dma_fence_wait(fence, false);

	dma_fence_put(fence);