| pci.c (5b68705d1e6340127464ef0ac0e1de94f823f14e) | pci.c (0b9159d0ff21bc281dbb9ede06ad566330ac0943) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0-only 2/* Copyright(c) 2020 Intel Corporation. All rights reserved. */ 3#include <uapi/linux/cxl_mem.h> 4#include <linux/security.h> 5#include <linux/debugfs.h> 6#include <linux/module.h> 7#include <linux/sizes.h> 8#include <linux/mutex.h> --- 50 unchanged lines hidden (view full) --- 59 CXL_MBOX_OP_INJECT_POISON = 0x4301, 60 CXL_MBOX_OP_CLEAR_POISON = 0x4302, 61 CXL_MBOX_OP_GET_SCAN_MEDIA_CAPS = 0x4303, 62 CXL_MBOX_OP_SCAN_MEDIA = 0x4304, 63 CXL_MBOX_OP_GET_SCAN_MEDIA = 0x4305, 64 CXL_MBOX_OP_MAX = 0x10000 65}; 66 | 1// SPDX-License-Identifier: GPL-2.0-only 2/* Copyright(c) 2020 Intel Corporation. All rights reserved. */ 3#include <uapi/linux/cxl_mem.h> 4#include <linux/security.h> 5#include <linux/debugfs.h> 6#include <linux/module.h> 7#include <linux/sizes.h> 8#include <linux/mutex.h> --- 50 unchanged lines hidden (view full) --- 59 CXL_MBOX_OP_INJECT_POISON = 0x4301, 60 CXL_MBOX_OP_CLEAR_POISON = 0x4302, 61 CXL_MBOX_OP_GET_SCAN_MEDIA_CAPS = 0x4303, 62 CXL_MBOX_OP_SCAN_MEDIA = 0x4304, 63 CXL_MBOX_OP_GET_SCAN_MEDIA = 0x4305, 64 CXL_MBOX_OP_MAX = 0x10000 65}; 66 |
| 67/* 68 * CXL 2.0 - Memory capacity multiplier 69 * See Section 8.2.9.5 70 * 71 * Volatile, Persistent, and Partition capacities are specified to be in 72 * multiples of 256MB - define a multiplier to convert to/from bytes. 73 */ 74#define CXL_CAPACITY_MULTIPLIER SZ_256M 75 |
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| 67/** 68 * struct mbox_cmd - A command to be submitted to hardware. 69 * @opcode: (input) The command set and command submitted to hardware. 70 * @payload_in: (input) Pointer to the input payload. 71 * @payload_out: (output) Pointer to the output payload. Must be allocated by 72 * the caller. 73 * @size_in: (input) Number of bytes to load from @payload_in. 74 * @size_out: (input) Max number of bytes loaded into @payload_out. --- 1270 unchanged lines hidden (view full) --- 1345 } __packed id; 1346 int rc; 1347 1348 rc = cxl_mem_mbox_send_cmd(cxlm, CXL_MBOX_OP_IDENTIFY, NULL, 0, &id, 1349 sizeof(id)); 1350 if (rc < 0) 1351 return rc; 1352 | 76/** 77 * struct mbox_cmd - A command to be submitted to hardware. 78 * @opcode: (input) The command set and command submitted to hardware. 79 * @payload_in: (input) Pointer to the input payload. 80 * @payload_out: (output) Pointer to the output payload. Must be allocated by 81 * the caller. 82 * @size_in: (input) Number of bytes to load from @payload_in. 83 * @size_out: (input) Max number of bytes loaded into @payload_out. --- 1270 unchanged lines hidden (view full) --- 1354 } __packed id; 1355 int rc; 1356 1357 rc = cxl_mem_mbox_send_cmd(cxlm, CXL_MBOX_OP_IDENTIFY, NULL, 0, &id, 1358 sizeof(id)); 1359 if (rc < 0) 1360 return rc; 1361 |
| 1362 cxlm->total_bytes = le64_to_cpu(id.total_capacity); 1363 cxlm->total_bytes *= CXL_CAPACITY_MULTIPLIER; 1364 1365 cxlm->volatile_only_bytes = le64_to_cpu(id.volatile_capacity); 1366 cxlm->volatile_only_bytes *= CXL_CAPACITY_MULTIPLIER; 1367 1368 cxlm->persistent_only_bytes = le64_to_cpu(id.persistent_capacity); 1369 cxlm->persistent_only_bytes *= CXL_CAPACITY_MULTIPLIER; 1370 1371 cxlm->partition_align_bytes = le64_to_cpu(id.partition_align); 1372 cxlm->partition_align_bytes *= CXL_CAPACITY_MULTIPLIER; 1373 1374 dev_dbg(&cxlm->pdev->dev, "Identify Memory Device\n" 1375 " total_bytes = %#llx\n" 1376 " volatile_only_bytes = %#llx\n" 1377 " persistent_only_bytes = %#llx\n" 1378 " partition_align_bytes = %#llx\n", 1379 cxlm->total_bytes, 1380 cxlm->volatile_only_bytes, 1381 cxlm->persistent_only_bytes, 1382 cxlm->partition_align_bytes); 1383 |
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| 1353 /* 1354 * TODO: enumerate DPA map, as 'ram' and 'pmem' do not alias. 1355 * For now, only the capacity is exported in sysfs 1356 */ 1357 cxlm->ram_range.start = 0; | 1384 /* 1385 * TODO: enumerate DPA map, as 'ram' and 'pmem' do not alias. 1386 * For now, only the capacity is exported in sysfs 1387 */ 1388 cxlm->ram_range.start = 0; |
| 1358 cxlm->ram_range.end = le64_to_cpu(id.volatile_capacity) * SZ_256M - 1; | 1389 cxlm->ram_range.end = cxlm->volatile_only_bytes - 1; |
| 1359 1360 cxlm->pmem_range.start = 0; | 1390 1391 cxlm->pmem_range.start = 0; |
| 1361 cxlm->pmem_range.end = 1362 le64_to_cpu(id.persistent_capacity) * SZ_256M - 1; | 1392 cxlm->pmem_range.end = cxlm->persistent_only_bytes - 1; |
| 1363 1364 cxlm->lsa_size = le32_to_cpu(id.lsa_size); 1365 memcpy(cxlm->firmware_version, id.fw_revision, sizeof(id.fw_revision)); 1366 1367 return 0; 1368} 1369 1370static int cxl_mem_probe(struct pci_dev *pdev, const struct pci_device_id *id) --- 86 unchanged lines hidden --- | 1393 1394 cxlm->lsa_size = le32_to_cpu(id.lsa_size); 1395 memcpy(cxlm->firmware_version, id.fw_revision, sizeof(id.fw_revision)); 1396 1397 return 0; 1398} 1399 1400static int cxl_mem_probe(struct pci_dev *pdev, const struct pci_device_id *id) --- 86 unchanged lines hidden --- |