Home
last modified time | relevance | path

Searched +full:no +full:- +full:memory +full:- +full:wc (Results 1 – 25 of 119) sorted by relevance

12345

/linux/Documentation/arch/x86/
H A Dpat.rst1 .. SPDX-License-Identifier: GPL-2.0
7 x86 Page Attribute Table (PAT) allows for setting the memory attribute at the
9 for setting of memory types over physical address ranges. However, PAT is
11 and also due to the fact that there are no hardware limitations on number of
13 not having memory type aliasing for the same physical memory with multiple
16 PAT allows for different types of memory attributes. The most commonly used
20 WB Write-back
22 WC Write-combined
23 WT Write-through
24 UC- Uncached Minus
[all …]
/linux/arch/x86/mm/pat/
H A Dmemtype.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Page Attribute Table (PAT) support: handle memory caching attributes in page tables.
14 * memory ranges: uncached, write-combining, write-through, write-protected,
15 * and the most commonly used and default attribute: write-back caching.
18 * a hardware interface to enumerate a limited number of physical memory ranges
20 * Even modern CPUs have MTRRs enabled - but these are typically not touched
21 * by the kernel or by user-space (such as the X server), we rely on PAT for any
24 * PAT doesn't work via explicit memory ranges, but uses page table entries to add
25 * cache attribute information to the mapped memory range: there's 3 bits used,
71 * various user-requested or hardware-forced reasons:
[all …]
/linux/net/sunrpc/xprtrdma/
H A Dfrwr_ops.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
7 /* Lightweight memory registration using Fast Registration Work
11 * of arbitrarily-sized memory regions. This is the fastest and safest
12 * but most complex memory registration mode.
17 * A Memory Region is prepared for RDMA Read or Write using a FAST_REG
19 * Memory Region is invalidated using a LOCAL_INV Work Request
32 * send lock, just as ->send_request does. This prevents frwr_map and
51 struct rpc_rdma_cid *cid = &mr->mr_cid; in frwr_cid_init()
53 cid->ci_queue_id = ep->re_attr.send_cq->res.id; in frwr_cid_init()
[all …]
H A Dverbs.c1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
3 * Copyright (c) 2014-2017 Oracle. All rights reserved.
4 * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
9 * COPYING in the main directory of this source tree, or the BSD-type
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
49 * o buffer memory
91 struct rpcrdma_ep *ep = r_xprt->rx_ep; in rpcrdma_xprt_drain()
92 struct rdma_cm_id *id = ep->re_id; in rpcrdma_xprt_drain()
97 if (atomic_inc_return(&ep->re_receiving) > 1) in rpcrdma_xprt_drain()
98 wait_for_completion(&ep->re_done); in rpcrdma_xprt_drain()
[all …]
/linux/tools/testing/selftests/memory-hotplug/
H A Dmem-on-off-test.sh2 # SPDX-License-Identifier: GPL-2.0
6 # Kselftest framework requirement - SKIP code is 4.
18 SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
20 if [ ! -d "$SYSFS" ]; then
25 if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
26 echo $msg memory hotplug is not supported >&2
30 if ! grep -q 1 $SYSFS/devices/system/memory/memory*/removable; then
31 echo $msg no hot-pluggable memory >&2
37 # list all hot-pluggable memory
41 local state=${1:-.\*}
[all …]
/linux/sound/isa/wavefront/
H A Dwavefront_synth.c1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (C) by Paul Barton-Davis 1998-1999
5 * copyright (C) by Hannu Savolainen 1993-1996
14 * of GUS patches during loading, and full user-level access to all
15 * WaveFront commands. It tries to provide semi-intelligent patch and
36 loading. if non-zer
1517 wavefront_synth_control(snd_wavefront_card_t * acard,wavefront_control * wc) wavefront_synth_control() argument
1668 wavefront_control *wc; snd_wavefront_synth_ioctl() local
[all...]
/linux/drivers/infiniband/ulp/iser/
H A Discsi_iser.h7 * based on code maintained by open-iscsi@googlegroups.com
11 * Copyright (c) 2013-2014 Mellanox Technologies. All rights reserved.
23 * - Redistributions of source code must retain the above
27 * - Redistributions in binary form must reproduce the above
35 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
58 #include <linux/dma-mapping.h>
125 * supports -EAGAIN scheme where tx is suspended till the QP has room for more *
138 /* For Signature we don't support DATAOUTs so no need to make room for them */
145 - ISER_MAX_TX_MISC_PDUS \
146 - ISER_MAX_RX_MISC_PDUS) / \
[all …]
H A Diser_initiator.c3 * Copyright (c) 2013-2014 Mellanox Technologies. All rights reserved.
15 * - Redistributions of source code must retain the above
19 * - Redistributions in binary form must reproduce the above
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
43 /* Register user buffer memory and initialize passive rdma
45 * task->data[ISER_DIR_IN].data_len, Protection size
46 * os stored in task->prot[ISER_DIR_IN].data_len
51 struct iscsi_iser_task *iser_task = task->dd_data; in iser_prepare_read_cmd()
54 struct iser_ctrl *hdr = &iser_task->desc.iser_header; in iser_prepare_read_cmd()
64 iser_err("Failed to set up Data-IN RDMA\n"); in iser_prepare_read_cmd()
[all …]
H A Diser_verbs.c4 * Copyright (c) 2013-2014 Mellanox Technologies. All rights reserved.
16 * - Redistributions of source code must retain the above
20 * - Redistributions in binary form must reproduce the above
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
43 ib_event_msg(cause->event), cause->event); in iser_qp_event_callback()
50 ib_event_msg(event->event), event->event, in iser_event_handler()
51 dev_name(&event->device->dev), event->element.port_num); in iser_event_handler()
55 * iser_create_device_ib_res - creates Protection Domain (PD), Completion
56 * Queue (CQ), DMA Memory Region (DMA MR) with the device associated with
59 * Return: 0 on success, -1 on failure
[all …]
/linux/drivers/md/
H A Ddm-writecache.c1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <linux/device-mapper.h>
13 #include <linux/dm-io.h>
14 #include <linux/dm-kcopyd.h>
18 #include "dm-io-tracker.h"
31 #define MAX_AGE_UNSPECIFIED -1UL
100 #define WC_MODE_PMEM(wc) ((wc)->pmem_mode) argument
101 #define WC_MODE_FUA(wc) ((wc)->writeback_fua) argument
103 #define WC_MODE_PMEM(wc) false argument
104 #define WC_MODE_FUA(wc) false argument
[all …]
/linux/net/rds/
H A Dib_cm.c14 * - Redistributions of source code must retain the above
18 * - Redistributions in binary form must reproduce the above
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
51 conn->c_version = version; in rds_ib_set_protocol()
59 struct rds_ib_connection *ic = conn->c_transport_data; in rds_ib_set_flow_control()
63 ic->i_flowctl = 1; in rds_ib_set_flow_control()
66 ic->i_flowctl = 0; in rds_ib_set_flow_control()
76 struct rds_ib_connection *ic = conn->c_transport_data; in rds_ib_cm_connect_complete()
84 dp = event->param.conn.private_data; in rds_ib_cm_connect_complete()
85 if (conn->c_isv6) { in rds_ib_cm_connect_complete()
[all …]
H A Dib_frmr.c14 * - Redistributions of source code must retain the above
18 * - Redistributions in binary form must reproduce the above
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
40 if (cmpxchg(&ibmr->u.frmr.fr_state, in rds_transition_frwr_state()
43 /* enforce order of ibmr->u.frmr.fr_state update in rds_transition_frwr_state()
47 atomic_dec(&ibmr->ic->i_fastreg_inuse_count); in rds_transition_frwr_state()
62 pool = rds_ibdev->mr_8k_pool; in rds_ib_alloc_frmr()
64 pool = rds_ibdev->mr_1m_pool; in rds_ib_alloc_frmr()
73 err = -ENOMEM; in rds_ib_alloc_frmr()
77 frmr = &ibmr->u.frmr; in rds_ib_alloc_frmr()
[all …]
/linux/drivers/gpu/drm/i915/
H A Di915_memcpy.c17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
55 :: "r" (src), "r" (dst) : "memory"); in __memcpy_ntdqa()
58 len -= 4; in __memcpy_ntdqa()
60 while (len--) { in __memcpy_ntdqa()
63 :: "r" (src), "r" (dst) : "memory"); in __memcpy_ntdqa()
84 :: "r" (src), "r" (dst) : "memory"); in __memcpy_ntdqu()
87 len -= 4; in __memcpy_ntdqu()
89 while (len--) { in __memcpy_ntdqu()
92 :: "r" (src), "r" (dst) : "memory"); in __memcpy_ntdqu()
101 * i915_memcpy_from_wc: perform an accelerated *aligned* read from WC
[all …]
/linux/drivers/gpu/drm/
H A Ddrm_cache.c3 * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
28 * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
34 #include <linux/iosys-map.h>
71 mb(); /*Full memory barrier used before so that CLFLUSH is ordered*/ in drm_cache_flush_clflush()
79 * drm_clflush_pages - Flush dcache lines of a set of pages.
114 WARN_ONCE(1, "Architecture has no drm_cache.c support\n"); in drm_clflush_pages()
120 * drm_clflush_sg - Flush dcache lines pointing to a scather-gather.
133 mb(); /*CLFLUSH is ordered only by using memory barriers*/ in drm_clflush_sg()
143 WARN_ONCE(1, "Architecture has no drm_cache.c support\n"); in drm_clflush_sg()
[all …]
/linux/arch/x86/kernel/cpu/mtrr/
H A Dmtrr.c1 // SPDX-License-Identifier: LGPL-2.0+
2 /* Generic MTRR (Memory Type Range Register) driver.
4 Copyright (C) 1997-2000 Richard Gooch
16 on 6-7 March 2002.
18 System Programming Guide; Section 9.11. (1997 edition - PPro).
61 /* Returns non-zero if we have the write-combining memory type */
70 * write-combining. Don't allow it and leave room for other in have_wrcomb()
73 if (dev->vendor == PCI_VENDOR_ID_SERVERWORKS && in have_wrcomb()
74 dev->device == PCI_DEVICE_ID_SERVERWORKS_LE && in have_wrcomb()
75 dev->revision <= 5) { in have_wrcomb()
[all …]
/linux/sound/core/
H A Dmemalloc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Generic memory allocators
11 #include <linux/dma-mapping.h>
12 #include <linux/dma-map-ops.h>
34 __GFP_RETRY_MAYFAIL | /* don't trigger OOM-killer */ \
35 __GFP_NOWARN) /* no stack trace print - this call is non-critical */
43 if (WARN_ON_ONCE(!ops || !ops->alloc)) in __snd_dma_alloc_pages()
45 return ops->alloc(dmab, size); in __snd_dma_alloc_pages()
49 * snd_dma_alloc_dir_pages - allocate the buffer area according to the given
57 * Calls the memory-allocator function for the corresponding
[all …]
/linux/fs/btrfs/
H A Dtree-log.c1 // SPDX-License-Identifier: GPL-2.0
13 #include "tree-log.h"
14 #include "disk-io.h"
19 #include "block-group.h"
20 #include "space-info.h"
21 #include "inode-item.h"
24 #include "extent-tree.h"
25 #include "root-tree.h"
26 #include "dir-item.h"
27 #include "file-item.h"
[all …]
H A Dextent-tree.c1 // SPDX-License-Identifier: GPL-2.0
20 #include "extent-tree.h"
22 #include "disk-io.h"
23 #include "print-tree.h"
27 #include "free-space-cache.h"
28 #include "free-space-tree.h"
30 #include "ref-verify.h"
31 #include "space-info.h"
32 #include "block-rsv.h"
35 #include "dev-replace.h"
[all …]
/linux/include/xen/interface/
H A Dxen.h1 /* SPDX-License-Identifier: MIT */
69 /* Architecture-specific hypercall definitions. */
83 * In the side comments, 'V.' denotes a per-VCPU VIRQ while 'G.' denotes a
84 * global VIRQ. The former can be bound once per VCPU and cannot be re-bound.
86 * allocated to VCPU0 but can subsequently be re-bound.
97 #define VIRQ_MEM_EVENT 10 /* G. (DOM0) A memory event has occured */
99 #define VIRQ_ENOMEM 12 /* G. (DOM0) Low on heap memory */
102 /* Architecture-specific VIRQ definitions. */
127 * x != 0 => PFD == x - 1
129 * Sub-commands: ptr[1:0] specifies the appropriate MMU_* command.
[all …]
/linux/drivers/infiniband/hw/cxgb4/
H A Dcq.c2 * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
14 * - Redistributions of source code must retain the above
18 * - Redistributions in binary form must reproduce the above
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
49 res_wr->op_nres = cpu_to_be32( in destroy_cq()
53 res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16)); in destroy_cq()
54 res_wr->cookie = (uintptr_t)wr_waitp; in destroy_cq()
55 res = res_wr->res; in destroy_cq()
56 res->u.cq.restype = FW_RI_RES_TYPE_CQ; in destroy_cq()
57 res->u.cq.op = FW_RI_RES_OP_RESET; in destroy_cq()
[all …]
/linux/drivers/nvme/host/
H A Drdma.c1 // SPDX-License-Identifier: GPL-2.0
4 * Copyright (c) 2015-2016 HGST, a Western Digital Company.
14 #include <linux/blk-mq.h>
15 #include <linux/blk-integrity.h>
25 #include <linux/nvme-rdma.h>
144 * allows read and write access to all physical memory.
149 "Use memory registration even for contiguous memory regions");
153 static void nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc);
161 return queue - queue->ctrl->queues; in nvme_rdma_queue_idx()
167 queue->ctrl->io_queues[HCTX_TYPE_DEFAULT] + in nvme_rdma_poll_queue()
[all …]
/linux/fs/smb/client/
H A Dsmbdirect.c1 // SPDX-License-Identifier: GPL-2.0-or-later
18 struct smbdirect_socket *sc = &conn->socket; in smbd_get_parameters()
20 return &sc->parameters; in smbd_get_parameters()
70 /* SMBD minimum receive size and fragmented sized defined in [MS-SMBD] */
82 /* No need to retry on Receiver Not Ready since SMBD manages credits */
87 * as defined in [MS-SMBD] 3.1.1.1
99 /* The maximum fragmented upper-layer payload receive size supported */
102 /* The maximum single-message size which can be received */
174 wake_up_all(&sc->status_wait); in smbd_disconnect_wake_up_all()
175 wake_up_all(&sc->send_io.lcredits.wait_queue); in smbd_disconnect_wake_up_all()
[all …]
/linux/drivers/net/ethernet/mellanox/mlx5/core/
H A Dwc.c1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
20 /* data path - accessed per cqe */
23 /* data path - accessed per napi poll */
50 struct mlx5_core_cq *mcq = &cq->mcq; in mlx5_wc_create_cqwq()
55 err = mlx5_cqwq_create(mdev, &param, cqc, &cq->wq, &cq->wq_ctrl); in mlx5_wc_create_cqwq()
59 mcq->cqe_sz = 64; in mlx5_wc_create_cqwq()
60 mcq->set_ci_db = cq->wq_ctrl.db.db; in mlx5_wc_create_cqwq()
61 mcq->arm_db = cq->wq_ctrl.db.db + 1; in mlx5_wc_create_cqwq()
63 for (i = 0; i < mlx5_cqwq_get_size(&cq->wq); i++) { in mlx5_wc_create_cqwq()
64 struct mlx5_cqe64 *cqe = mlx5_cqwq_get_wqe(&cq->wq, i); in mlx5_wc_create_cqwq()
[all …]
/linux/drivers/infiniband/hw/qedr/
H A Dqedr_roce_cm.c2 * Copyright (c) 2015-2016 QLogic Corporation
14 * - Redistributions of source code must retain the above
18 * - Redistributions in binary form must reproduce the above
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
32 #include <linux/dma-mapping.h>
50 #include <rdma/qedr-abi.h>
55 info->gsi_cons = (info->gsi_cons + 1) % info->max_wr; in qedr_inc_sw_gsi_cons()
61 dev->gsi_qp_created = 1; in qedr_store_gsi_qp_cq()
62 dev->gsi_sqcq = get_qedr_cq(attrs->send_cq); in qedr_store_gsi_qp_cq()
63 dev->gsi_rqcq = get_qedr_cq(attrs->recv_cq); in qedr_store_gsi_qp_cq()
[all …]
/linux/drivers/infiniband/ulp/rtrs/
H A Drtrs-clt.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2014 - 2018 ProfitBricks GmbH. All rights reserved.
6 * Copyright (c) 2018 - 2019 1&1 IONOS Cloud GmbH. All rights reserved.
7 * Copyright (c) 2019 - 2020 1&1 IONOS SE. All rights reserved.
17 #include "rtrs-clt.h"
18 #include "rtrs-log.h"
19 #include "rtrs-clt-trace.h"
49 .name = "rtrs-client",
58 list_for_each_entry_rcu(clt_path, &clt->paths_list, s.entry) in rtrs_clt_is_connected()
59 if (READ_ONCE(clt_path->state) == RTRS_CLT_CONNECTED) { in rtrs_clt_is_connected()
[all …]

12345