| region.c (11c83932028714014e4259072bd230473d6db730) | region.c (c7ad3dc3649730af483ee1e78be5d0362da25bfe) |
|---|---|
| 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> --- 383 unchanged lines hidden (view full) --- 392 if (rc) 393 return rc; 394 395 rc = ways_to_eiw(val, &iw); 396 if (rc) 397 return rc; 398 399 /* | 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> --- 383 unchanged lines hidden (view full) --- 392 if (rc) 393 return rc; 394 395 rc = ways_to_eiw(val, &iw); 396 if (rc) 397 return rc; 398 399 /* |
| 400 * Even for x3, x9, and x12 interleaves the region interleave must be a | 400 * Even for x3, x6, and x12 interleaves the region interleave must be a |
| 401 * power of 2 multiple of the host bridge interleave. 402 */ 403 if (!is_power_of_2(val / cxld->interleave_ways) || 404 (val % cxld->interleave_ways)) { 405 dev_dbg(&cxlr->dev, "invalid interleave: %d\n", val); 406 return -EINVAL; 407 } 408 --- 138 unchanged lines hidden (view full) --- 547 548 div_u64_rem(size, SZ_256M * p->interleave_ways, &remainder); 549 if (remainder) 550 return -EINVAL; 551 552 res = alloc_free_mem_region(cxlrd->res, size, SZ_256M, 553 dev_name(&cxlr->dev)); 554 if (IS_ERR(res)) { | 401 * power of 2 multiple of the host bridge interleave. 402 */ 403 if (!is_power_of_2(val / cxld->interleave_ways) || 404 (val % cxld->interleave_ways)) { 405 dev_dbg(&cxlr->dev, "invalid interleave: %d\n", val); 406 return -EINVAL; 407 } 408 --- 138 unchanged lines hidden (view full) --- 547 548 div_u64_rem(size, SZ_256M * p->interleave_ways, &remainder); 549 if (remainder) 550 return -EINVAL; 551 552 res = alloc_free_mem_region(cxlrd->res, size, SZ_256M, 553 dev_name(&cxlr->dev)); 554 if (IS_ERR(res)) { |
| 555 dev_dbg(&cxlr->dev, 556 "HPA allocation error (%ld) for size:%pap in %s %pr\n", 557 PTR_ERR(res), &size, cxlrd->res->name, cxlrd->res); | 555 dev_dbg(&cxlr->dev, "failed to allocate HPA: %ld\n", 556 PTR_ERR(res)); |
| 558 return PTR_ERR(res); 559 } 560 561 p->res = res; 562 p->state = CXL_CONFIG_INTERLEAVE_ACTIVE; 563 564 return 0; 565} --- 1513 unchanged lines hidden (view full) --- 2079{ 2080 if (dev_WARN_ONCE(dev, dev->type != &cxl_region_type, 2081 "not a cxl_region device\n")) 2082 return NULL; 2083 2084 return container_of(dev, struct cxl_region, dev); 2085} 2086 | 557 return PTR_ERR(res); 558 } 559 560 p->res = res; 561 p->state = CXL_CONFIG_INTERLEAVE_ACTIVE; 562 563 return 0; 564} --- 1513 unchanged lines hidden (view full) --- 2078{ 2079 if (dev_WARN_ONCE(dev, dev->type != &cxl_region_type, 2080 "not a cxl_region device\n")) 2081 return NULL; 2082 2083 return container_of(dev, struct cxl_region, dev); 2084} 2085 |
| 2087static void unregister_region(void *_cxlr) | 2086static void unregister_region(void *dev) |
| 2088{ | 2087{ |
| 2089 struct cxl_region *cxlr = _cxlr; | 2088 struct cxl_region *cxlr = to_cxl_region(dev); |
| 2090 struct cxl_region_params *p = &cxlr->params; 2091 int i; 2092 | 2089 struct cxl_region_params *p = &cxlr->params; 2090 int i; 2091 |
| 2093 device_del(&cxlr->dev); | 2092 device_del(dev); |
| 2094 2095 /* 2096 * Now that region sysfs is shutdown, the parameter block is now 2097 * read-only, so no need to hold the region rwsem to access the 2098 * region parameters. 2099 */ 2100 for (i = 0; i < p->interleave_ways; i++) 2101 detach_target(cxlr, i); 2102 2103 cxl_region_iomem_release(cxlr); | 2093 2094 /* 2095 * Now that region sysfs is shutdown, the parameter block is now 2096 * read-only, so no need to hold the region rwsem to access the 2097 * region parameters. 2098 */ 2099 for (i = 0; i < p->interleave_ways; i++) 2100 detach_target(cxlr, i); 2101 2102 cxl_region_iomem_release(cxlr); |
| 2104 put_device(&cxlr->dev); | 2103 put_device(dev); |
| 2105} 2106 2107static struct lock_class_key cxl_region_key; 2108 2109static struct cxl_region *cxl_region_alloc(struct cxl_root_decoder *cxlrd, int id) 2110{ 2111 struct cxl_region *cxlr; 2112 struct device *dev; --- 895 unchanged lines hidden --- | 2104} 2105 2106static struct lock_class_key cxl_region_key; 2107 2108static struct cxl_region *cxl_region_alloc(struct cxl_root_decoder *cxlrd, int id) 2109{ 2110 struct cxl_region *cxlr; 2111 struct device *dev; --- 895 unchanged lines hidden --- |