dawr.c (762f99f4f3cb41a775b5157dd761217beba65873) dawr.c (1fd02f6605b855b4af2883f29a2abc88bdf17857)
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * DAWR infrastructure
4 *
5 * Copyright 2019, Michael Neuling, IBM Corporation.
6 */
7
8#include <linux/types.h>

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22 dawr = brk->address;
23
24 dawrx = (brk->type & (HW_BRK_TYPE_READ | HW_BRK_TYPE_WRITE))
25 << (63 - 58);
26 dawrx |= ((brk->type & (HW_BRK_TYPE_TRANSLATE)) >> 2) << (63 - 59);
27 dawrx |= (brk->type & (HW_BRK_TYPE_PRIV_ALL)) >> 3;
28 /*
29 * DAWR length is stored in field MDR bits 48:53. Matches range in
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * DAWR infrastructure
4 *
5 * Copyright 2019, Michael Neuling, IBM Corporation.
6 */
7
8#include <linux/types.h>

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22 dawr = brk->address;
23
24 dawrx = (brk->type & (HW_BRK_TYPE_READ | HW_BRK_TYPE_WRITE))
25 << (63 - 58);
26 dawrx |= ((brk->type & (HW_BRK_TYPE_TRANSLATE)) >> 2) << (63 - 59);
27 dawrx |= (brk->type & (HW_BRK_TYPE_PRIV_ALL)) >> 3;
28 /*
29 * DAWR length is stored in field MDR bits 48:53. Matches range in
30 * doublewords (64 bits) baised by -1 eg. 0b000000=1DW and
30 * doublewords (64 bits) biased by -1 eg. 0b000000=1DW and
31 * 0b111111=64DW.
32 * brk->hw_len is in bytes.
33 * This aligns up to double word size, shifts and does the bias.
34 */
35 mrd = ((brk->hw_len + 7) >> 3) - 1;
36 dawrx |= (mrd & 0x3f) << (63 - 53);
37
38 if (ppc_md.set_dawr)

--- 71 unchanged lines hidden --- 		31 * 0b111111=64DW.
32 * brk->hw_len is in bytes.
33 * This aligns up to double word size, shifts and does the bias.
34 */
35 mrd = ((brk->hw_len + 7) >> 3) - 1;
36 dawrx |= (mrd & 0x3f) << (63 - 53);
37
38 if (ppc_md.set_dawr)

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