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58184e95e9
The ioreadX() helpers have inconsistent interface. On some architectures void *__iomem address argument is a pointer to const, on some not. Implementations of ioreadX() do not modify the memory under the address so they can be converted to a "const" version for const-safety and consistency among architectures. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Dave Jiang <dave.jiang@intel.com> Cc: Allen Hubbe <allenbh@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Helge Deller <deller@gmx.de> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Jakub Kicinski <kuba@kernel.org> Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com> Cc: Jason Wang <jasowang@redhat.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: "Michael S. Tsirkin" <mst@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200709072837.5869-4-krzk@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
118 lines
4.7 KiB
C
118 lines
4.7 KiB
C
/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2012-2017 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2012-2017 Intel Corporation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copy
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _NTB_INTEL_GEN3_H_
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#define _NTB_INTEL_GEN3_H_
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#include "ntb_hw_intel.h"
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/* Intel Skylake Xeon hardware */
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#define GEN3_IMBAR1SZ_OFFSET 0x00d0
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#define GEN3_IMBAR2SZ_OFFSET 0x00d1
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#define GEN3_EMBAR1SZ_OFFSET 0x00d2
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#define GEN3_EMBAR2SZ_OFFSET 0x00d3
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#define GEN3_DEVCTRL_OFFSET 0x0098
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#define GEN3_DEVSTS_OFFSET 0x009a
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#define GEN3_UNCERRSTS_OFFSET 0x014c
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#define GEN3_CORERRSTS_OFFSET 0x0158
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#define GEN3_LINK_STATUS_OFFSET 0x01a2
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#define GEN3_NTBCNTL_OFFSET 0x0000
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#define GEN3_IMBAR1XBASE_OFFSET 0x0010 /* SBAR2XLAT */
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#define GEN3_IMBAR1XLMT_OFFSET 0x0018 /* SBAR2LMT */
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#define GEN3_IMBAR2XBASE_OFFSET 0x0020 /* SBAR4XLAT */
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#define GEN3_IMBAR2XLMT_OFFSET 0x0028 /* SBAR4LMT */
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#define GEN3_IM_INT_STATUS_OFFSET 0x0040
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#define GEN3_IM_INT_DISABLE_OFFSET 0x0048
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#define GEN3_IM_SPAD_OFFSET 0x0080 /* SPAD */
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#define GEN3_USMEMMISS_OFFSET 0x0070
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#define GEN3_INTVEC_OFFSET 0x00d0
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#define GEN3_IM_DOORBELL_OFFSET 0x0100 /* SDOORBELL0 */
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#define GEN3_B2B_SPAD_OFFSET 0x0180 /* B2B SPAD */
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#define GEN3_EMBAR0XBASE_OFFSET 0x4008 /* B2B_XLAT */
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#define GEN3_EMBAR1XBASE_OFFSET 0x4010 /* PBAR2XLAT */
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#define GEN3_EMBAR1XLMT_OFFSET 0x4018 /* PBAR2LMT */
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#define GEN3_EMBAR2XBASE_OFFSET 0x4020 /* PBAR4XLAT */
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#define GEN3_EMBAR2XLMT_OFFSET 0x4028 /* PBAR4LMT */
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#define GEN3_EM_INT_STATUS_OFFSET 0x4040
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#define GEN3_EM_INT_DISABLE_OFFSET 0x4048
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#define GEN3_EM_SPAD_OFFSET 0x4080 /* remote SPAD */
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#define GEN3_EM_DOORBELL_OFFSET 0x4100 /* PDOORBELL0 */
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#define GEN3_SPCICMD_OFFSET 0x4504 /* SPCICMD */
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#define GEN3_EMBAR0_OFFSET 0x4510 /* SBAR0BASE */
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#define GEN3_EMBAR1_OFFSET 0x4518 /* SBAR23BASE */
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#define GEN3_EMBAR2_OFFSET 0x4520 /* SBAR45BASE */
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#define GEN3_DB_COUNT 32
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#define GEN3_DB_LINK 32
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#define GEN3_DB_LINK_BIT BIT_ULL(GEN3_DB_LINK)
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#define GEN3_DB_MSIX_VECTOR_COUNT 33
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#define GEN3_DB_MSIX_VECTOR_SHIFT 1
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#define GEN3_DB_TOTAL_SHIFT 33
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#define GEN3_SPAD_COUNT 16
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static inline u64 gen3_db_ioread(const void __iomem *mmio)
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{
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return ioread64(mmio);
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}
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static inline void gen3_db_iowrite(u64 bits, void __iomem *mmio)
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{
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iowrite64(bits, mmio);
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}
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ssize_t ndev_ntb3_debugfs_read(struct file *filp, char __user *ubuf,
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size_t count, loff_t *offp);
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int gen3_init_dev(struct intel_ntb_dev *ndev);
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int intel_ntb3_link_enable(struct ntb_dev *ntb, enum ntb_speed max_speed,
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enum ntb_width max_width);
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u64 intel_ntb3_db_read(struct ntb_dev *ntb);
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int intel_ntb3_db_clear(struct ntb_dev *ntb, u64 db_bits);
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int intel_ntb3_peer_db_set(struct ntb_dev *ntb, u64 db_bits);
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int intel_ntb3_peer_db_addr(struct ntb_dev *ntb, phys_addr_t *db_addr,
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resource_size_t *db_size,
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u64 *db_data, int db_bit);
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extern const struct ntb_dev_ops intel_ntb3_ops;
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#endif
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