#if defined(__i386__) || defined(__x86_64__)
#include <unistd.h>
#include <errno.h>
#include <stdio.h>
#include <stdint.h>

#include <pci/pci.h>

#include "helpers/helpers.h"

#define MSR_AMD_PSTATE_STATUS	0xc0010063
#define MSR_AMD_PSTATE		0xc0010064
#define MSR_AMD_PSTATE_LIMIT	0xc0010061

union msr_pstate {
	struct {
		unsigned fid:6;
		unsigned did:3;
		unsigned vid:7;
		unsigned res1:6;
		unsigned nbdid:1;
		unsigned res2:2;
		unsigned nbvid:7;
		unsigned iddval:8;
		unsigned idddiv:2;
		unsigned res3:21;
		unsigned en:1;
	} bits;
	unsigned long long val;
};

static int get_did(int family, union msr_pstate pstate)
{
	int t;

	if (family == 0x12)
		t = pstate.val & 0xf;
	else
		t = pstate.bits.did;

	return t;
}

static int get_cof(int family, union msr_pstate pstate)
{
	int t;
	int fid, did;

	did = get_did(family, pstate);

	t = 0x10;
	fid = pstate.bits.fid;
	if (family == 0x11)
		t = 0x8;

	return (100 * (fid + t)) >> did;
}

/* Needs:
 * cpu          -> the cpu that gets evaluated
 * cpu_family   -> The cpu's family (0x10, 0x12,...)
 * boots_states -> how much boost states the machines support
 *
 * Fills up:
 * pstates -> a pointer to an array of size MAX_HW_PSTATES
 *            must be initialized with zeros.
 *            All available  HW pstates (including boost states)
 * no      -> amount of pstates above array got filled up with
 *
 * returns zero on success, -1 on failure
 */
int decode_pstates(unsigned int cpu, unsigned int cpu_family,
		   int boost_states, unsigned long *pstates, int *no)
{
	int i, psmax, pscur;
	union msr_pstate pstate;
	unsigned long long val;

	/* Only read out frequencies from HW when CPU might be boostable
	   to keep the code as short and clean as possible.
	   Otherwise frequencies are exported via ACPI tables.
	*/
	if (cpu_family < 0x10 || cpu_family == 0x14)
		return -1;

	if (read_msr(cpu, MSR_AMD_PSTATE_LIMIT, &val))
		return -1;

	psmax = (val >> 4) & 0x7;

	if (read_msr(cpu, MSR_AMD_PSTATE_STATUS, &val))
		return -1;

	pscur = val & 0x7;

	pscur += boost_states;
	psmax += boost_states;
	for (i = 0; i <= psmax; i++) {
		if (i >= MAX_HW_PSTATES) {
			fprintf(stderr, "HW pstates [%d] exceeding max [%d]\n",
				psmax, MAX_HW_PSTATES);
			return -1;
		}
		if (read_msr(cpu, MSR_AMD_PSTATE + i, &pstate.val))
			return -1;
		pstates[i] = get_cof(cpu_family, pstate);
	}
	*no = i;
	return 0;
}

int amd_pci_get_num_boost_states(int *active, int *states)
{
	struct pci_access *pci_acc;
	struct pci_dev *device;
	uint8_t val = 0;

	*active = *states = 0;

	device = pci_slot_func_init(&pci_acc, 0x18, 4);

	if (device == NULL)
		return -ENODEV;

	val = pci_read_byte(device, 0x15c);
	if (val & 3)
		*active = 1;
	else
		*active = 0;
	*states = (val >> 2) & 7;

	pci_cleanup(pci_acc);
	return 0;
}
#endif /* defined(__i386__) || defined(__x86_64__) */
t/include?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>math-emu</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-2.h?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>op-2.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='b98acbff9a05b371c5f0ca6e44a3af8ce9274379'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Colin Ian King &lt;colin.king@canonical.com&gt;</td><td class='right'>2017-01-11 15:36:20 +0000</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2017-01-18 16:32:44 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-2.h?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>b98acbff9a05b371c5f0ca6e44a3af8ce9274379</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/math-emu/op-2.h?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>d6835885f859a456e62ce93621041138d6a54f9b</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/math-emu/op-2.h?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>include/math-emu/op-2.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/math-emu/op-2.h?id=d00b74613fb18dfd0a5aa99270ee2e72d5c808d7'>d00b74613fb18dfd0a5aa99270ee2e72d5c808d7</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/math-emu/op-2.h?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379&amp;id2=d00b74613fb18dfd0a5aa99270ee2e72d5c808d7'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: twl6030: fix range comparison, allowing vsel = 59</div><div class='commit-msg'>The range min_uV &gt; 1350000 &amp;&amp; min_uV &lt;= 150000 is never reachable
because of a typo in the previous range check and hence vsel = 59
is never reached.  Fix the previous range check to enable the
vsel = 59 setting.

Fixes CoverityScan CID#728454 ("Logially dead code")

Signed-off-by: Colin Ian King &lt;colin.king@canonical.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=b98acbff9a05b371c5f0ca6e44a3af8ce9274379'>Diffstat</a> (limited to 'include/math-emu/op-2.h')</div><table summary='diffstat' class='diffstat'>