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From ac9ce8475684e9ed0670a7ac798e57ca2c971e54 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Thu, 6 Dec 2018 17:12:31 +0000
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Subject: [PATCH 06/15] include: Add a lookup table of sizes
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20181206171240.5674-7-kwolf@redhat.com>
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Patchwork-id: 83294
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O-Subject: [RHEL-8.0 qemu-kvm PATCH 06/15] include: Add a lookup table of sizes
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Bugzilla: 1656507
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Leonid Bloch <lbloch@janustech.com>
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Adding a lookup table for the powers of two, with the appropriate size
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prefixes. This is needed when a size has to be stringified, in which
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case something like '(1 * KiB)' would become a literal '(1 * (1L << 10))'
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string. Powers of two are used very often for sizes, so such a table
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will also make it easier and more intuitive to write them.
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This table is generatred using the following AWK script:
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BEGIN {
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	suffix="KMGTPE";
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	for(i=10; i<64; i++) {
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		val=2**i;
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		s=substr(suffix, int(i/10), 1);
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		n=2**(i%10);
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		pad=21-int(log(n)/log(10));
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		printf("#define S_%d%siB %*d\n", n, s, pad, val);
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	}
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}
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Signed-off-by: Leonid Bloch <lbloch@janustech.com>
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Reviewed-by: Alberto Garcia <berto@igalia.com>
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Reviewed-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 540b8492618ebbe98e7462bd7d31361b8cb10a05)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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 include/qemu/units.h | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++++
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 1 file changed, 55 insertions(+)
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diff --git a/include/qemu/units.h b/include/qemu/units.h
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index 692db3f..68a7758 100644
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--- a/include/qemu/units.h
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+++ b/include/qemu/units.h
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@@ -17,4 +17,59 @@
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 #define PiB     (INT64_C(1) << 50)
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 #define EiB     (INT64_C(1) << 60)
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+#define S_1KiB                  1024
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+#define S_2KiB                  2048
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+#define S_4KiB                  4096
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+#define S_8KiB                  8192
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+#define S_16KiB                16384
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+#define S_32KiB                32768
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+#define S_64KiB                65536
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+#define S_128KiB              131072
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+#define S_256KiB              262144
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+#define S_512KiB              524288
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+#define S_1MiB               1048576
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+#define S_2MiB               2097152
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+#define S_4MiB               4194304
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+#define S_8MiB               8388608
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+#define S_16MiB             16777216
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+#define S_32MiB             33554432
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+#define S_64MiB             67108864
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+#define S_128MiB           134217728
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+#define S_256MiB           268435456
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+#define S_512MiB           536870912
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+#define S_1GiB            1073741824
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+#define S_2GiB            2147483648
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+#define S_4GiB            4294967296
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+#define S_8GiB            8589934592
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+#define S_16GiB          17179869184
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+#define S_32GiB          34359738368
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+#define S_64GiB          68719476736
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+#define S_128GiB        137438953472
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+#define S_256GiB        274877906944
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+#define S_512GiB        549755813888
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+#define S_1TiB         1099511627776
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+#define S_2TiB         2199023255552
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+#define S_4TiB         4398046511104
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+#define S_8TiB         8796093022208
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+#define S_16TiB       17592186044416
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+#define S_32TiB       35184372088832
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+#define S_64TiB       70368744177664
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+#define S_128TiB     140737488355328
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+#define S_256TiB     281474976710656
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+#define S_512TiB     562949953421312
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+#define S_1PiB      1125899906842624
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+#define S_2PiB      2251799813685248
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+#define S_4PiB      4503599627370496
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+#define S_8PiB      9007199254740992
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+#define S_16PiB    18014398509481984
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+#define S_32PiB    36028797018963968
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+#define S_64PiB    72057594037927936
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+#define S_128PiB  144115188075855872
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+#define S_256PiB  288230376151711744
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+#define S_512PiB  576460752303423488
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+#define S_1EiB   1152921504606846976
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+#define S_2EiB   2305843009213693952
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+#define S_4EiB   4611686018427387904
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+#define S_8EiB   9223372036854775808
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+
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 #endif
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-- 
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1.8.3.1
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