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decrese the XE_PL_TT watermark for old kernel

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we did not implement the shrinker in the older kernel

Revert d2d5f6d578848f13b1d01abd4e9a2452e5602586
This commit is contained in:
bbaa
2025-10-09 10:25:59 +08:00
committed by Sophon
parent b6ee19a11d
commit fd24d28b88
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/xe/xe_ttm_sys_mgr.c
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@@ -111,6 +111,11 @@ int xe_ttm_sys_mgr_init(struct xe_device *xe)
/* Potentially restrict amount of TT memory here. */
gtt_size = (u64)si.totalram * si.mem_unit;
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 15, 0)
/* TTM limits allocation of all TTM devices by 50% of system memory */
gtt_size /= 2;
#endif
man->use_tt = true;
man->func = &xe_ttm_sys_mgr_func;
ttm_resource_manager_init(man, &xe->ttm, gtt_size >> PAGE_SHIFT);