diff mbox series

[4/9] cxl: Rework caps to new function

Message ID 20210604190541.175602-5-ben.widawsky@intel.com (mailing list archive)
State New
Delegated to: Bjorn Helgaas
Headers show
Series Add CXL 2.0 DVSEC Decoding | expand

Commit Message

Ben Widawsky June 4, 2021, 7:05 p.m. UTC
This will help upcoming caps

Signed-off-by: Ben Widawsky <ben.widawsky@intel.com>
---
 ls-ecaps.c | 38 ++++++++++++++++++++++++++------------
 1 file changed, 26 insertions(+), 12 deletions(-)
diff mbox series

Patch

diff --git a/ls-ecaps.c b/ls-ecaps.c
index 2b3f0f9..c2a13d5 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -690,35 +690,49 @@  cap_rcec(struct device *d, int where)
 }
 
 static void
-cap_dvsec_cxl(struct device *d, int id, int where)
+dvsec_cxl_device(uint8_t *data, int rev)
 {
   u16 w;
 
-  printf(": CXL\n");
-  if (verbose < 2)
-    return;
-
-  if (id != 0)
-    return;
-
-  if (!config_fetch(d, where + PCI_CXL_CAP, 0x38 - 0xa))
+  /* Legacy 1.1 revs aren't handled */
+  if (rev != 1)
     return;
 
-  w = get_conf_word(d, where + PCI_CXL_CAP);
+  w = *(u16 *)(data + PCI_CXL_CAP);
   printf("\t\tCXLCap:\tCache%c IO%c Mem%c Mem HW Init%c HDMCount %d Viral%c\n",
     FLAG(w, PCI_CXL_CAP_CACHE), FLAG(w, PCI_CXL_CAP_IO), FLAG(w, PCI_CXL_CAP_MEM),
     FLAG(w, PCI_CXL_CAP_MEM_HWINIT), PCI_CXL_CAP_HDM_CNT(w), FLAG(w, PCI_CXL_CAP_VIRAL));
 
-  w = get_conf_word(d, where + PCI_CXL_CTRL);
+  w = *(u16 *)(data + PCI_CXL_CTRL);
   printf("\t\tCXLCtl:\tCache%c IO%c Mem%c Cache SF Cov %d Cache SF Gran %d Cache Clean%c Viral%c\n",
     FLAG(w, PCI_CXL_CTRL_CACHE), FLAG(w, PCI_CXL_CTRL_IO), FLAG(w, PCI_CXL_CTRL_MEM),
     PCI_CXL_CTRL_CACHE_SF_COV(w), PCI_CXL_CTRL_CACHE_SF_GRAN(w), FLAG(w, PCI_CXL_CTRL_CACHE_CLN),
     FLAG(w, PCI_CXL_CTRL_VIRAL));
 
-  w = get_conf_word(d, where + PCI_CXL_STATUS);
+  w = *(u16 *)(data + PCI_CXL_STATUS);
   printf("\t\tCXLSta:\tViral%c\n", FLAG(w, PCI_CXL_STATUS_VIRAL));
 }
 
+static void
+cap_dvsec_cxl(struct device *d, int id, int where)
+{
+  u8 rev;
+
+  printf(": CXL\n");
+  if (verbose < 2)
+    return;
+
+  if (id != 0)
+    return;
+
+  rev = BITS(get_conf_byte(d, where + 0x6), 0, 4);
+
+  if (!config_fetch(d, where, 0x38))
+    return;
+
+  dvsec_cxl_device(d->config + where, rev);
+}
+
 static void
 cap_dvsec(struct device *d, int where)
 {