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* [edk2-devel] [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST
       [not found] <cover.1711508722.git.xianglei.cai@intel.com>
@ 2024-03-27  3:05 ` Xianglei Cai
  2024-04-10 13:29   ` Lewandowski, Krzysztof
  0 siblings, 1 reply; 3+ messages in thread
From: Xianglei Cai @ 2024-03-27  3:05 UTC (permalink / raw)
  To: devel
  Cc: Xianglei Cai, Hao A Wu, Ray Ni, Jian J Wang, Liming Gao,
	Jenny Huang, More Shih, Chiu, Ian

https://bugzilla.tianocore.org/show_bug.cgi?id=4727

Recently some of XHCI host controllers require to have
extra 1ms delay before accessing any MMIO register
during reset. PHY transition from P3 to P0 can take
around 1.3ms and the xHCI reset can take around 1.5ms.
Add PCD to control the delay, the default is 2 ms.

Cc: Hao A Wu     <hao.a.wu@intel.com>
Cc: Ray Ni       <ray.ni@intel.com>
Cc: Jian J Wang  <jian.j.wang@intel.com>
Cc: Liming Gao   <gaoliming@byosoft.com.cn>
Cc: Jenny Huang  <jenny.huang@intel.com>
Cc: More Shih    <more.shih@intel.com>
Cc: Chiu, Ian    <ian.chiu@intel.com>

Signed-off-by: Xianglei Cai <xianglei.cai@intel.com>
---
 MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h      | 1 +
 MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf | 4 ++++
 MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c   | 2 +-
 MdePkg/MdePkg.dec                        | 4 ++++
 MdePkg/MdePkg.dsc                        | 1 +
 5 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
index 44016758724c..c9a12095c29e 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
@@ -28,6 +28,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/DebugLib.h>
 #include <Library/ReportStatusCodeLib.h>
 #include <Library/TimerLib.h>
+#include <Library/PcdLib.h>
 
 #include <IndustryStandard/Pci.h>
 
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
index 18ef87916ae4..2ee4c22d1e32 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
@@ -56,6 +56,7 @@
   DebugLib
   ReportStatusCodeLib
   TimerLib
+  PcdLib
 
 [Guids]
   gEfiEventExitBootServicesGuid                 ## SOMETIMES_CONSUMES ## Event
@@ -64,6 +65,9 @@
   gEfiPciIoProtocolGuid                         ## TO_START
   gEfiUsb2HcProtocolGuid                        ## BY_START
 
+[Pcd]
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset      ## CONSUMES
+
 # [Event]
 # EVENT_TYPE_PERIODIC_TIMER       ## CONSUMES
 #
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
index 40f2f1f22766..525942a167b0 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
@@ -864,7 +864,7 @@ XhcResetHC (
     // Otherwise there may have the timeout case happened.
     // The below is a workaround to solve such problem.
     //
-    gBS->Stall (XHC_1_MILLISECOND);
+    gBS->Stall (PcdGet16 (PcdDelayXhciHCReset));
     Status = XhcWaitOpRegBit (Xhc, XHC_USBCMD_OFFSET, XHC_USBCMD_RESET, FALSE, Timeout);
 
     if (!EFI_ERROR (Status)) {
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 0459418906f8..a5b3ce94072c 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2510,5 +2510,9 @@
   # @Prompt Memory encryption attribute
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0|UINT64|0x0000002e
 
+  ## This dynamic PCD indicates time delay for XHCI registers access after it issues HCRST.
+  # @Prompt Delay access XHCI register after it issues HCRST (us)
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000|UINT16|0x00000043
+
 [UserExtensions.TianoCore."ExtraFiles"]
   MdePkgExtra.uni
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 109224c527f7..23aea04fea2e 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -31,6 +31,7 @@
   gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0x0f
   gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x80000000
   gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xE0000000
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000
 
 [LibraryClasses]
   SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf
-- 
2.42.0.windows.2



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^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [edk2-devel] [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST
  2024-03-27  3:05 ` [edk2-devel] [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST Xianglei Cai
@ 2024-04-10 13:29   ` Lewandowski, Krzysztof
  2024-04-12  1:54     ` Xianglei Cai
  0 siblings, 1 reply; 3+ messages in thread
From: Lewandowski, Krzysztof @ 2024-04-10 13:29 UTC (permalink / raw)
  To: Cai, Xianglei, devel
  Cc: Ni, Ray, Liming Gao, Huang, Jenny, Shih, More, Chiu, Ian

[-- Attachment #1: Type: text/plain, Size: 5920 bytes --]

Looks good to me.

Reviewed-by: Krzysztof Lewandowski <krzysztof.lewandowski@intel.com>
________________________________
From: Cai, Xianglei <xianglei.cai@intel.com>
Sent: Wednesday, April 10, 2024 09:01
To: devel@edk2.groups.io <devel@edk2.groups.io>
Cc: Cai, Xianglei <xianglei.cai@intel.com>; Ni, Ray <ray.ni@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Lewandowski, Krzysztof <krzysztof.lewandowski@intel.com>; Huang, Jenny <jenny.huang@intel.com>; Shih, More <more.shih@intel.com>; Chiu, Ian <Ian.chiu@intel.com>
Subject: [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST

https://bugzilla.tianocore.org/show_bug.cgi?id=4727

Recently some of XHCI host controllers require to have
extra 1ms delay before accessing any MMIO register
during reset. PHY transition from P3 to P0 can take
around 1.3ms and the xHCI reset can take around 1.5ms.
Add PCD to control the delay, the default is 2 ms.

Cc: Ray Ni                                <ray.ni@intel.com>
Cc: Liming Gao                            <gaoliming@byosoft.com.cn>
Cc: Krzysztof Lewandowski    <krzysztof.lewandowski@intel.com>
Cc: Jenny Huang                           <jenny.huang@intel.com>
Cc: More Shih                             <more.shih@intel.com>
Cc: Ian Chiu                      <ian.chiu@intel.com>

Signed-off-by: Xianglei Cai <xianglei.cai@intel.com>
---
 MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h      | 1 +
 MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf | 4 ++++
 MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c   | 2 +-
 MdePkg/MdePkg.dec                        | 4 ++++
 MdePkg/MdePkg.dsc                        | 1 +
 5 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
index 44016758724c..c9a12095c29e 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
@@ -28,6 +28,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/DebugLib.h>
 #include <Library/ReportStatusCodeLib.h>
 #include <Library/TimerLib.h>
+#include <Library/PcdLib.h>

 #include <IndustryStandard/Pci.h>

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
index 18ef87916ae4..2ee4c22d1e32 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
@@ -56,6 +56,7 @@
   DebugLib
   ReportStatusCodeLib
   TimerLib
+  PcdLib

 [Guids]
   gEfiEventExitBootServicesGuid                 ## SOMETIMES_CONSUMES ## Event
@@ -64,6 +65,9 @@
   gEfiPciIoProtocolGuid                         ## TO_START
   gEfiUsb2HcProtocolGuid                        ## BY_START

+[Pcd]
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset      ## CONSUMES
+
 # [Event]
 # EVENT_TYPE_PERIODIC_TIMER       ## CONSUMES
 #
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
index 40f2f1f22766..525942a167b0 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
@@ -864,7 +864,7 @@ XhcResetHC (
     // Otherwise there may have the timeout case happened.
     // The below is a workaround to solve such problem.
     //
-    gBS->Stall (XHC_1_MILLISECOND);
+    gBS->Stall (PcdGet16 (PcdDelayXhciHCReset));
     Status = XhcWaitOpRegBit (Xhc, XHC_USBCMD_OFFSET, XHC_USBCMD_RESET, FALSE, Timeout);

     if (!EFI_ERROR (Status)) {
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 0459418906f8..a5b3ce94072c 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2510,5 +2510,9 @@
   # @Prompt Memory encryption attribute
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0|UINT64|0x0000002e

+  ## This dynamic PCD indicates time delay for XHCI registers access after it issues HCRST.
+  # @Prompt Delay access XHCI register after it issues HCRST (us)
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000|UINT16|0x00000043
+
 [UserExtensions.TianoCore."ExtraFiles"]
   MdePkgExtra.uni
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 109224c527f7..23aea04fea2e 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -31,6 +31,7 @@
   gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0x0f
   gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x80000000
   gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xE0000000
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000

 [LibraryClasses]
   SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf
--
2.42.0.windows.2

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^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [edk2-devel] [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST
  2024-04-10 13:29   ` Lewandowski, Krzysztof
@ 2024-04-12  1:54     ` Xianglei Cai
  0 siblings, 0 replies; 3+ messages in thread
From: Xianglei Cai @ 2024-04-12  1:54 UTC (permalink / raw)
  To: Lewandowski, Krzysztof, devel, Ni, Ray, Liming Gao
  Cc: Huang, Jenny, Shih, More, Chiu, Ian

[-- Attachment #1: Type: text/plain, Size: 6038 bytes --]

@Liming Gao<mailto:gaoliming@byosoft.com.cn> @Ni, Ray<mailto:ray.ni@intel.com> Would you like to merge the patch to upstream?

Thanks,
Xianglei

From: Lewandowski, Krzysztof <krzysztof.lewandowski@intel.com>
Sent: Wednesday, April 10, 2024 9:29 PM
To: Cai, Xianglei <xianglei.cai@intel.com>; devel@edk2.groups.io
Cc: Ni, Ray <ray.ni@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Huang, Jenny <jenny.huang@intel.com>; Shih, More <more.shih@intel.com>; Chiu, Ian <Ian.chiu@intel.com>
Subject: Re: [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST

Looks good to me.

Reviewed-by: Krzysztof Lewandowski <krzysztof.lewandowski@intel.com<mailto:krzysztof.lewandowski@intel.com>>
________________________________
From: Cai, Xianglei <xianglei.cai@intel.com<mailto:xianglei.cai@intel.com>>
Sent: Wednesday, April 10, 2024 09:01
To: devel@edk2.groups.io<mailto:devel@edk2.groups.io> <devel@edk2.groups.io<mailto:devel@edk2.groups.io>>
Cc: Cai, Xianglei <xianglei.cai@intel.com<mailto:xianglei.cai@intel.com>>; Ni, Ray <ray.ni@intel.com<mailto:ray.ni@intel.com>>; Liming Gao <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>; Lewandowski, Krzysztof <krzysztof.lewandowski@intel.com<mailto:krzysztof.lewandowski@intel.com>>; Huang, Jenny <jenny.huang@intel.com<mailto:jenny.huang@intel.com>>; Shih, More <more.shih@intel.com<mailto:more.shih@intel.com>>; Chiu, Ian <Ian.chiu@intel.com<mailto:Ian.chiu@intel.com>>
Subject: [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST

https://bugzilla.tianocore.org/show_bug.cgi?id=4727

Recently some of XHCI host controllers require to have
extra 1ms delay before accessing any MMIO register
during reset. PHY transition from P3 to P0 can take
around 1.3ms and the xHCI reset can take around 1.5ms.
Add PCD to control the delay, the default is 2 ms.

Cc: Ray Ni                                <ray.ni@intel.com<mailto:ray.ni@intel.com>>
Cc: Liming Gao                            <gaoliming@byosoft.com.cn<mailto:gaoliming@byosoft.com.cn>>
Cc: Krzysztof Lewandowski    <krzysztof.lewandowski@intel.com<mailto:krzysztof.lewandowski@intel.com>>
Cc: Jenny Huang                           <jenny.huang@intel.com<mailto:jenny.huang@intel.com>>
Cc: More Shih                             <more.shih@intel.com<mailto:more.shih@intel.com>>
Cc: Ian Chiu                      <ian.chiu@intel.com<mailto:ian.chiu@intel.com>>

Signed-off-by: Xianglei Cai <xianglei.cai@intel.com<mailto:xianglei.cai@intel.com>>
---
 MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h      | 1 +
 MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf | 4 ++++
 MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c   | 2 +-
 MdePkg/MdePkg.dec                        | 4 ++++
 MdePkg/MdePkg.dsc                        | 1 +
 5 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
index 44016758724c..c9a12095c29e 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/Xhci.h
@@ -28,6 +28,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #include <Library/DebugLib.h>
 #include <Library/ReportStatusCodeLib.h>
 #include <Library/TimerLib.h>
+#include <Library/PcdLib.h>

 #include <IndustryStandard/Pci.h>

diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
index 18ef87916ae4..2ee4c22d1e32 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciDxe.inf
@@ -56,6 +56,7 @@
   DebugLib
   ReportStatusCodeLib
   TimerLib
+  PcdLib

 [Guids]
   gEfiEventExitBootServicesGuid                 ## SOMETIMES_CONSUMES ## Event
@@ -64,6 +65,9 @@
   gEfiPciIoProtocolGuid                         ## TO_START
   gEfiUsb2HcProtocolGuid                        ## BY_START

+[Pcd]
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset      ## CONSUMES
+
 # [Event]
 # EVENT_TYPE_PERIODIC_TIMER       ## CONSUMES
 #
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
index 40f2f1f22766..525942a167b0 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciReg.c
@@ -864,7 +864,7 @@ XhcResetHC (
     // Otherwise there may have the timeout case happened.
     // The below is a workaround to solve such problem.
     //
-    gBS->Stall (XHC_1_MILLISECOND);
+    gBS->Stall (PcdGet16 (PcdDelayXhciHCReset));
     Status = XhcWaitOpRegBit (Xhc, XHC_USBCMD_OFFSET, XHC_USBCMD_RESET, FALSE, Timeout);

     if (!EFI_ERROR (Status)) {
diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec
index 0459418906f8..a5b3ce94072c 100644
--- a/MdePkg/MdePkg.dec
+++ b/MdePkg/MdePkg.dec
@@ -2510,5 +2510,9 @@
   # @Prompt Memory encryption attribute
   gEfiMdePkgTokenSpaceGuid.PcdConfidentialComputingGuestAttr|0|UINT64|0x0000002e

+  ## This dynamic PCD indicates time delay for XHCI registers access after it issues HCRST.
+  # @Prompt Delay access XHCI register after it issues HCRST (us)
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000|UINT16|0x00000043
+
 [UserExtensions.TianoCore."ExtraFiles"]
   MdePkgExtra.uni
diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc
index 109224c527f7..23aea04fea2e 100644
--- a/MdePkg/MdePkg.dsc
+++ b/MdePkg/MdePkg.dsc
@@ -31,6 +31,7 @@
   gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0x0f
   gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x80000000
   gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0xE0000000
+  gEfiMdePkgTokenSpaceGuid.PcdDelayXhciHCReset|2000

 [LibraryClasses]
   SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf
--
2.42.0.windows.2


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2024-03-27  3:05 ` [edk2-devel] [PATCH 1/1] MdeModulePkg/XhciDxe: Add PCD for the delay of HCRST Xianglei Cai
2024-04-10 13:29   ` Lewandowski, Krzysztof
2024-04-12  1:54     ` Xianglei Cai

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