public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
From: "Ni, Ray" <ray.ni@intel.com>
To: devel@edk2.groups.io
Cc: Eric Dong <eric.dong@intel.com>, Star Zeng <star.zeng@intel.com>,
	Zhiqiang Qin <zhiqiang.qin@intel.com>
Subject: [PATCH v2 2/2] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly
Date: Thu,  4 Apr 2019 14:03:06 +0800	[thread overview]
Message-ID: <20190404060306.168500-3-ray.ni@intel.com> (raw)
In-Reply-To: <20190404060306.168500-1-ray.ni@intel.com>

Leaf 1FH is very similar to leaf 0BH. Both return the CPU topology
information.
Leaf 0BH returns 3-level (Package/Core/Thread) CPU topology info.
Leaf 1FH returns 6-level (Package/Die/Tile/Module/Core/Thread) CPU
topology info.
The logic to enumerate the topology info is the same.

But today's logic to handle 1FH is completely wrong.
The patch combines them together to fix the 1FH issue.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Zhiqiang Qin <zhiqiang.qin@intel.com>
---
 UefiCpuPkg/Application/Cpuid/Cpuid.c | 72 +++++++++-------------------
 1 file changed, 23 insertions(+), 49 deletions(-)

diff --git a/UefiCpuPkg/Application/Cpuid/Cpuid.c b/UefiCpuPkg/Application/Cpuid/Cpuid.c
index d229ac8e7b..30d43e9631 100644
--- a/UefiCpuPkg/Application/Cpuid/Cpuid.c
+++ b/UefiCpuPkg/Application/Cpuid/Cpuid.c
@@ -717,7 +717,7 @@ CpuidArchitecturalPerformanceMonitoring (
 **/
 VOID
 CpuidExtendedTopology (
-  VOID
+  UINT32                       LeafFunction
   )
 {
   CPUID_EXTENDED_TOPOLOGY_EAX  Eax;
@@ -726,27 +726,34 @@ CpuidExtendedTopology (
   UINT32                       Edx;
   UINT32                       LevelNumber;
 
-  if (CPUID_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
+  if (LeafFunction > gMaximumBasicFunction) {
+    return;
+  }
+  if ((LeafFunction != CPUID_EXTENDED_TOPOLOGY) && (LeafFunction != CPUID_V2_EXTENDED_TOPOLOGY)) {
     return;
   }
 
   LevelNumber = 0;
-  do {
+  for (LevelNumber = 0; ; LevelNumber++) {
     AsmCpuidEx (
-      CPUID_EXTENDED_TOPOLOGY, LevelNumber,
+      LeafFunction, LevelNumber,
       &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
       );
-    if (Eax.Bits.ApicIdShift != 0) {
-      Print (L"CPUID_EXTENDED_TOPOLOGY (Leaf %08x, Sub-Leaf %08x)\n", CPUID_EXTENDED_TOPOLOGY, LevelNumber);
-      Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
-      PRINT_BIT_FIELD (Eax, ApicIdShift);
-      PRINT_BIT_FIELD (Ebx, LogicalProcessors);
-      PRINT_BIT_FIELD (Ecx, LevelNumber);
-      PRINT_BIT_FIELD (Ecx, LevelType);
-      PRINT_VALUE     (Edx, x2APIC_ID);
+    if (Ecx.Bits.LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID) {
+      break;
     }
-    LevelNumber++;
-  } while (Eax.Bits.ApicIdShift != 0);
+    Print (
+      L"%a (Leaf %08x, Sub-Leaf %08x)\n",
+      LeafFunction == CPUID_EXTENDED_TOPOLOGY ? "CPUID_EXTENDED_TOPOLOGY" : "CPUID_V2_EXTENDED_TOPOLOGY",
+      LeafFunction, LevelNumber
+      );
+    Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
+    PRINT_BIT_FIELD (Eax, ApicIdShift);
+    PRINT_BIT_FIELD (Ebx, LogicalProcessors);
+    PRINT_BIT_FIELD (Ecx, LevelNumber);
+    PRINT_BIT_FIELD (Ecx, LevelType);
+    PRINT_VALUE     (Edx, x2APIC_ID);
+  }
 }
 
 /**
@@ -1385,39 +1392,6 @@ CpuidDeterministicAddressTranslationParameters (
   PRINT_BIT_FIELD (Edx, MaximumNum);
 }
 
-/**
-  Display CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION main leaf and sub-leafs.
-
-**/
-VOID
-CpuidV2ExtendedTopologyEnumeration (
-  VOID
-  )
-{
-  CPUID_EXTENDED_TOPOLOGY_EAX  Eax;
-  CPUID_EXTENDED_TOPOLOGY_EBX  Ebx;
-  CPUID_EXTENDED_TOPOLOGY_ECX  Ecx;
-  UINT32                       Edx;
-
-  if (CPUID_V2_EXTENDED_TOPOLOGY > gMaximumBasicFunction) {
-    return;
-  }
-
-  AsmCpuidEx (
-    CPUID_V2_EXTENDED_TOPOLOGY,
-    0,
-    &Eax.Uint32, &Ebx.Uint32, &Ecx.Uint32, &Edx
-    );
-  Print (L"CPUID_V2_EXTENDED_TOPOLOGY (Leaf %08x, Sub-Leaf %08x)\n", CPUID_V2_EXTENDED_TOPOLOGY, 0);
-  Print (L"  EAX:%08x  EBX:%08x  ECX:%08x  EDX:%08x\n", Eax.Uint32, Ebx.Uint32, Ecx.Uint32, Edx);
-
-  PRINT_BIT_FIELD (Eax, ApicIdShift);
-  PRINT_BIT_FIELD (Ebx, LogicalProcessors);
-  PRINT_BIT_FIELD (Ecx, LevelNumber);
-  PRINT_BIT_FIELD (Ecx, LevelType);
-  PRINT_VALUE     (Edx, x2APICID);
-}
-
 /**
   Display CPUID_EXTENDED_FUNCTION leaf.
 
@@ -1619,7 +1593,7 @@ UefiMain (
   CpuidStructuredExtendedFeatureFlags ();
   CpuidDirectCacheAccessInfo();
   CpuidArchitecturalPerformanceMonitoring ();
-  CpuidExtendedTopology ();
+  CpuidExtendedTopology (CPUID_EXTENDED_TOPOLOGY);
   CpuidExtendedStateMainLeaf ();
   CpuidIntelRdtMonitoringEnumerationSubLeaf ();
   CpuidIntelRdtMonitoringL3CacheCapabilitySubLeaf ();
@@ -1630,7 +1604,7 @@ UefiMain (
   CpuidProcessorFrequency ();
   CpuidSocVendor ();
   CpuidDeterministicAddressTranslationParameters ();
-  CpuidV2ExtendedTopologyEnumeration ();
+  CpuidExtendedTopology (CPUID_V2_EXTENDED_TOPOLOGY);
   CpuidExtendedFunction ();
   CpuidExtendedCpuSig ();
   CpuidProcessorBrandString ();
-- 
2.21.0.windows.1


  parent reply	other threads:[~2019-04-04  6:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-04  6:03 [PATCH v2 0/2] Dump CPUID.1FH information correctly Ni, Ray
2019-04-04  6:03 ` [PATCH v2 1/2] UefiCpuPkg/Cpuid.h: Remove duplicated struct definition for leaf 1FH Ni, Ray
2019-04-04  6:23   ` eric.dong
2019-04-04  6:03 ` Ni, Ray [this message]
2019-04-04  6:24   ` [edk2-devel] [PATCH v2 2/2] UefiCpuPkg/Cpuid: Dump leaf 1FH information correctly Dong, Eric

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-list from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190404060306.168500-3-ray.ni@intel.com \
    --to=devel@edk2.groups.io \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox