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[v6,15/24] x86: refactor psr: implement get value flow for CDP.

Message ID 1486541776-8406-16-git-send-email-yi.y.sun@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yi Sun Feb. 8, 2017, 8:16 a.m. UTC 
This patch implements L3 CDP get value callback function.

With this patch, 'psr-cat-show' can work for L3 CDP.

Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
---
 xen/arch/x86/psr.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
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Patch

diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c
index 5c307b5..df83aa1 100644
--- a/xen/arch/x86/psr.c
+++ b/xen/arch/x86/psr.c
@@ -542,9 +542,25 @@  static bool l3_cdp_get_feat_info(const struct feat_node *feat,
     return true;
 }
 
+static bool l3_cdp_get_val(const struct feat_node *feat, unsigned int cos,
+                           enum cbm_type type, uint64_t *val)
+{
+    if ( cos > feat->info.l3_cdp_info.cos_max )
+        /* Use default value. */
+        cos = 0;
+
+    if ( type == PSR_CBM_TYPE_L3_DATA )
+        *val = get_cdp_data(feat, cos);
+    else
+        *val = get_cdp_code(feat, cos);
+
+    return true;
+}
+
 struct feat_ops l3_cdp_ops = {
     .get_cos_max = l3_cdp_get_cos_max,
     .get_feat_info = l3_cdp_get_feat_info,
+    .get_val = l3_cdp_get_val,
 };
 
 static void __init parse_psr_bool(char *s, char *value, char *feature,