| Message ID | 87k3gco1k3.fsf@nemi.mork.no (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
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From de4befe40cb12a57a6edc4dd22271fa8a000d8f1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no> Date: Wed, 13 Nov 2013 14:24:06 +0100 Subject: [PATCH] lspci: decode Intel vendor specific L1 PM Substates MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Bjørn Mork <bjorn@mork.no> --- ls-ecaps.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/ls-ecaps.c b/ls-ecaps.c index c6f217e..144bf77 100644 --- a/ls-ecaps.c +++ b/ls-ecaps.c @@ -429,10 +429,13 @@ cap_rclink(struct device *d, int where) } } +static void cap_l1pm(struct device *d, int where); + static void cap_evendor(struct device *d, int where) { u32 hdr; + u16 id; printf("Vendor Specific Information: "); if (!config_fetch(d, where + PCI_EVNDR_HEADER, 4)) @@ -442,10 +445,17 @@ cap_evendor(struct device *d, int where) } hdr = get_conf_long(d, where + PCI_EVNDR_HEADER); - printf("ID=%04x Rev=%d Len=%03x <?>\n", - BITS(hdr, 0, 16), + id = BITS(hdr, 0, 16); + printf("ID=%04x Rev=%d Len=%03x ", + id, BITS(hdr, 16, 4), BITS(hdr, 20, 12)); + + /* Intel used this vendor specific ID prior to PCI-SIG allocating 0x001e */ + if (d->dev->vendor_id == cpu_to_le16(0x8086) && id == cpu_to_le16(0xcafe)) + cap_l1pm(d, where + PCI_EVNDR_HEADER); + else + printf("<?>\n"); } static void -- 1.7.10.4