| region.c (af3ea9ab61d728d5a8be01bbec6d5cf7551b9600) | region.c (cbbd05d036e91b9dd976af4382f6c8d91b69b38a) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0-only 2/* Copyright(c) 2022 Intel Corporation. All rights reserved. */ 3#include <linux/memregion.h> 4#include <linux/genalloc.h> 5#include <linux/device.h> 6#include <linux/module.h> 7#include <linux/slab.h> 8#include <linux/uuid.h> --- 400 unchanged lines hidden (view full) --- 409 rc = granularity_to_eig(val, &ig); 410 if (rc) 411 return rc; 412 413 /* 414 * When the host-bridge is interleaved, disallow region granularity != 415 * root granularity. Regions with a granularity less than the root 416 * interleave result in needing multiple endpoints to support a single | 1// SPDX-License-Identifier: GPL-2.0-only 2/* Copyright(c) 2022 Intel Corporation. All rights reserved. */ 3#include <linux/memregion.h> 4#include <linux/genalloc.h> 5#include <linux/device.h> 6#include <linux/module.h> 7#include <linux/slab.h> 8#include <linux/uuid.h> --- 400 unchanged lines hidden (view full) --- 409 rc = granularity_to_eig(val, &ig); 410 if (rc) 411 return rc; 412 413 /* 414 * When the host-bridge is interleaved, disallow region granularity != 415 * root granularity. Regions with a granularity less than the root 416 * interleave result in needing multiple endpoints to support a single |
| 417 * slot in the interleave (possible to suport in the future). Regions | 417 * slot in the interleave (possible to support in the future). Regions |
| 418 * with a granularity greater than the root interleave result in invalid 419 * DPA translations (invalid to support). 420 */ 421 if (cxld->interleave_ways > 1 && val != cxld->interleave_granularity) 422 return -EINVAL; 423 424 rc = down_write_killable(&cxl_region_rwsem); 425 if (rc) --- 1635 unchanged lines hidden --- | 418 * with a granularity greater than the root interleave result in invalid 419 * DPA translations (invalid to support). 420 */ 421 if (cxld->interleave_ways > 1 && val != cxld->interleave_granularity) 422 return -EINVAL; 423 424 rc = down_write_killable(&cxl_region_rwsem); 425 if (rc) --- 1635 unchanged lines hidden --- |