595.44.05

Author: russellcnv

README.md

@@ -1,7 +1,7 @@
 # NVIDIA Linux Open GPU Kernel Module Source
 
 This is the source release of the NVIDIA Linux open GPU kernel modules,
-version 595.44.03.
+version 595.44.05.
 
 
 ## How to Build
@@ -17,7 +17,7 @@ as root:
 
 Note that the kernel modules built here must be used with GSP
 firmware and user-space NVIDIA GPU driver components from a corresponding
-595.44.03 driver release.  This can be achieved by installing
+595.44.05 driver release.  This can be achieved by installing
 the NVIDIA GPU driver from the .run file using the `--no-kernel-modules`
 option.  E.g.,
 
@@ -185,7 +185,7 @@ table below).
 For details on feature support and limitations, see the NVIDIA GPU driver
 end user README here:
 
-https://us.download.nvidia.com/XFree86/Linux-x86_64/595.44.03/README/kernel_open.html
+https://us.download.nvidia.com/XFree86/Linux-x86_64/595.44.05/README/kernel_open.html
 
 For vGPU support, please refer to the README.vgpu packaged in the vGPU Host
 Package for more details.
@@ -946,6 +946,7 @@ Subsystem Device ID.
 | NVIDIA B200                                             | 2901 10DE 1999 |
 | NVIDIA B200                                             | 2901 10DE 199B |
 | NVIDIA B200                                             | 2901 10DE 20DA |
+| NVIDIA B200                                             | 2909 10DE 22EB |
 | NVIDIA GB200                                            | 2941 10DE 2046 |
 | NVIDIA GB200                                            | 2941 10DE 20CA |
 | NVIDIA GB200                                            | 2941 10DE 20D5 |
@@ -974,6 +975,8 @@ Subsystem Device ID.
 | NVIDIA RTX PRO 6000 Blackwell Server Edition            | 2BB5 10DE 204E |
 | NVIDIA RTX PRO 6000 Blackwell Server Edition            | 2BB5 10DE 220B |
 | NVIDIA RTX 6000D                                        | 2BB9 10DE 2091 |
+| NVIDIA RTX 6000D                                        | 2BB9 10DE 2092 |
+| NVIDIA RTX 6000D                                        | 2BB9 10DE 2279 |
 | NVIDIA GeForce RTX 5080                                 | 2C02           |
 | NVIDIA GeForce RTX 5070 Ti                              | 2C05           |
 | NVIDIA GeForce RTX 5090 Laptop GPU                      | 2C18           |
@@ -992,6 +995,7 @@ Subsystem Device ID.
 | NVIDIA RTX PRO 4000 Blackwell                           | 2C34 17AA 2052 |
 | NVIDIA RTX PRO 5000 Blackwell Generation Laptop GPU     | 2C38           |
 | NVIDIA RTX PRO 4000 Blackwell Generation Laptop GPU     | 2C39           |
+| NVIDIA RTX PRO 4500 Blackwell Server Edition            | 2C3A 10DE 21F4 |
 | NVIDIA GeForce RTX 5090 Laptop GPU                      | 2C58           |
 | NVIDIA GeForce RTX 5080 Laptop GPU                      | 2C59           |
 | NVIDIA RTX PRO 5000 Blackwell Embedded GPU              | 2C77           |
@@ -1021,3 +1025,4 @@ Subsystem Device ID.
 | NVIDIA GeForce RTX 5070 Ti Laptop GPU                   | 2F58           |
 | NVIDIA B300 SXM6 AC                                     | 3182 10DE 20E6 |
 | NVIDIA GB300                                            | 31C2 10DE 21F1 |
+| NVIDIA GB300                                            | 31C3 10DE 22F8 |

kernel-open/Kbuild

@@ -79,7 +79,7 @@ ccflags-y += -I$(src)/common/inc
 ccflags-y += -I$(src)
 ccflags-y += -Wall $(DEFINES) $(INCLUDES) -Wno-cast-qual -Wno-format-extra-args
 ccflags-y += -D__KERNEL__ -DMODULE -DNVRM
-ccflags-y += -DNV_VERSION_STRING=\"595.44.03\"
+ccflags-y += -DNV_VERSION_STRING=\"595.44.05\"
 
 # Include and link Tegra out-of-tree modules.
 ifneq ($(wildcard /usr/src/nvidia/nvidia-public),)

kernel-open/nvidia-uvm/uvm_gpu.c

@@ -3222,10 +3222,25 @@ uvm_gpu_phys_address_t uvm_gpu_peer_phys_address(uvm_gpu_t *owning_gpu, NvU64 ad
 uvm_gpu_address_t uvm_gpu_peer_copy_address(uvm_gpu_t *owning_gpu, NvU64 address, uvm_gpu_t *accessing_gpu)
 {
     uvm_gpu_identity_mapping_t *gpu_peer_mapping;
+    const bool mig_peers_use_phys = uvm_gpus_are_smc_peers(owning_gpu, accessing_gpu) &&
+        accessing_gpu->parent->ce_phys_vidmem_write_supported;
 
-    if (accessing_gpu->parent->peer_copy_mode == UVM_GPU_PEER_COPY_MODE_PHYSICAL)
+    // MIG peers do not create peer vidmem mappings like other peers. They do
+    // create their vidmem identity mappings to cover all possible physical
+    // addresses, even those of other MIG peers.
+    // Use vidmem this identity mapping if CEs need to use virtual addresses.
+    if (uvm_gpus_are_smc_peers(owning_gpu, accessing_gpu) && !mig_peers_use_phys) {
+        uvm_gpu_phys_address_t phys_address = uvm_gpu_peer_phys_address(owning_gpu, address, accessing_gpu);
+        return uvm_gpu_address_virtual_from_vidmem_phys(accessing_gpu, phys_address.address);
+    }
+
+    // Use physical addresses for MIGs peers if CE allows it. Irespective of
+    // the peer copy mode.
+    if (accessing_gpu->parent->peer_copy_mode == UVM_GPU_PEER_COPY_MODE_PHYSICAL || mig_peers_use_phys)
         return uvm_gpu_address_from_phys(uvm_gpu_peer_phys_address(owning_gpu, address, accessing_gpu));
 
+    // MIG peers do not create peer GPU mappings so it should never reach here.
+    UVM_ASSERT(!uvm_gpus_are_smc_peers(owning_gpu, accessing_gpu));
     UVM_ASSERT(accessing_gpu->parent->peer_copy_mode == UVM_GPU_PEER_COPY_MODE_VIRTUAL);
     gpu_peer_mapping = uvm_gpu_get_peer_mapping(accessing_gpu, owning_gpu->id);
 

src/common/displayport/inc/dp_connectorimpl2x.h

@@ -1,5 +1,5 @@
 /*
- * SPDX-FileCopyrightText: Copyright (c) 2023-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ * SPDX-FileCopyrightText: Copyright (c) 2023-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
  * SPDX-License-Identifier: MIT
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -110,6 +110,7 @@ namespace DisplayPort
         bool    bStuffDummySymbolsFor128b132b;
         bool    bStuffDummySymbolsFor8b10b;
         bool    bDisableWatermarkCaching;
+        bool    bEnableClearMSAWhenNotUsed;
 
         // Do not enable downspread while link training.
         bool    bDisableDownspread;

src/common/displayport/inc/dp_regkeydatabase.h

@@ -118,6 +118,9 @@
 
 #define NV_DP_REGKEY_DISABLE_NATIVE_DISPLAYID2X_SUPPORT    "DISABLE_NATIVE_DISPLAYID2X_SUPPORT"
 #define NV_DP_REGKEY_FORCE_NLPIGNORE_DDS                   "DP_FORCE_NLPIGNORE_DDS"
+
+#define NV_DP_REGKEY_ENABLE_CLEAR_MSA_WHEN_NOT_USED          "DP_ENABLE_CLEAR_MSA_WHEN_NOT_USED"
+
 //
 // Data Base used to store all the regkey values.
 // The actual data base is declared statically in dp_evoadapter.cpp.
@@ -169,6 +172,7 @@ struct DP_REGKEY_DATABASE
     bool  bDisableNativeDisplayId2xSupport;
     bool  bUseMaxDSCCompressionMST;
     bool  bIgnoreUnplugUnlessRequested;
+    bool  bEnableClearMSAWhenNotUsed;
 };
 
 extern struct DP_REGKEY_DATABASE dpRegkeyDatabase;

src/common/displayport/src/dp_connectorimpl.cpp

@@ -7342,7 +7342,7 @@ void ConnectorImpl::notifyLongPulse(bool statusConnected)
             return;
         }
 
-        if (existingDev && (existingDev->isPreviouslyFakedMuxDevice() || bIgnoreUnplugUnlessRequested) && !existingDev->isMarkedForDeletion())
+        if (existingDev && existingDev->isPreviouslyFakedMuxDevice() && !existingDev->isMarkedForDeletion())
         {
             DP_PRINTF(DP_NOTICE, "NotifyLongPulse ignored as there is a previously faked device but it is not marked for deletion");
             if (!statusConnected)
@@ -7352,6 +7352,12 @@ void ConnectorImpl::notifyLongPulse(bool statusConnected)
             }
             return;
         }
+
+		if (existingDev && bIgnoreUnplugUnlessRequested && !statusConnected && !existingDev->isMarkedForDeletion())
+		{
+			sink->notifyDetectComplete();
+			return;
+		}
     }
 
     if (previousPlugged && statusConnected)

src/common/displayport/src/dp_connectorimpl2x.cpp

@@ -114,6 +114,7 @@ void ConnectorImpl2x::applyDP2xRegkeyOverrides()
     this->maxLinkRateFromRegkey = dpRegkeyDatabase.applyMaxLinkRateOverrides;
     bSupportInternalUhbrOnFpga  = dpRegkeyDatabase.supportInternalUhbrOnFpga;
     this->bDisableWatermarkCaching = dpRegkeyDatabase.bDisableWatermarkCaching;
+    this->bEnableClearMSAWhenNotUsed = dpRegkeyDatabase.bEnableClearMSAWhenNotUsed;
     if (dpRegkeyDatabase.bIgnoreCableIdCaps)
     {
         hal->setIgnoreCableIdCaps(true);
@@ -935,6 +936,18 @@ bool ConnectorImpl2x::notifyAttachBegin(Group *target, const DpModesetParams &mo
         main->setDpStereoMSAParameters(!enableInbandStereoSignaling, modesetParams.msaparams);
         main->setDpMSAParameters(!enableInbandStereoSignaling, modesetParams.msaparams);
     }
+    else
+    {
+        // Clear MSA parameters for MST topology
+        if (this->bEnableClearMSAWhenNotUsed)
+        {
+            NV0073_CTRL_CMD_DP_SET_MSA_PROPERTIES_PARAMS msaParams = modesetParams.msaparams;
+            msaParams.bEnableMSA        = false;
+
+            main->setDpStereoMSAParameters(false, msaParams);
+            main->setDpMSAParameters(false, msaParams);
+        }
+    }
 
     NV_DPTRACE_INFO(NOTIFY_ATTACH_BEGIN_STATUS, bLinkTrainingStatus);
 

src/common/displayport/src/dp_evoadapter.cpp

@@ -116,7 +116,8 @@ const struct
     {NV_DP_REGKEY_ENABLE_128b132b_DSC_LNK_CFG_REDUCTION,  &dpRegkeyDatabase.bEnable128b132bDSCLnkCfgReduction,  DP_REG_VAL_BOOL},
     {NV_DP_REGKEY_DISABLE_NATIVE_DISPLAYID2X_SUPPORT,     &dpRegkeyDatabase.bDisableNativeDisplayId2xSupport,   DP_REG_VAL_BOOL},
     {NV_DP_REGKEY_USE_MAX_DSC_COMPRESSION_MST,            &dpRegkeyDatabase.bUseMaxDSCCompressionMST,           DP_REG_VAL_BOOL},
-    {NV_DP_REGKEY_FORCE_NLPIGNORE_DDS,                    &dpRegkeyDatabase.bIgnoreUnplugUnlessRequested,       DP_REG_VAL_BOOL}
+    {NV_DP_REGKEY_FORCE_NLPIGNORE_DDS,                    &dpRegkeyDatabase.bIgnoreUnplugUnlessRequested,       DP_REG_VAL_BOOL},
+    {NV_DP_REGKEY_ENABLE_CLEAR_MSA_WHEN_NOT_USED,         &dpRegkeyDatabase.bEnableClearMSAWhenNotUsed,         DP_REG_VAL_BOOL}
 };
 
 EvoMainLink::EvoMainLink(EvoInterface * provider, Timer * timer) :

src/common/inc/nvBldVer.h

@@ -43,18 +43,18 @@
 #endif
 
 #if defined(NV_LINUX) || defined(NV_BSD) || defined(NV_SUNOS)
-#define NV_BUILD_BRANCH_VERSION         "rel/gpu_drv/r595/VK595_35-124"
-#define NV_BUILD_CHANGELIST_NUM         (37628192)
+#define NV_BUILD_BRANCH_VERSION         "rel/gpu_drv/r595/VK595_35-126"
+#define NV_BUILD_CHANGELIST_NUM         (37724599)
 #define NV_BUILD_TYPE                   "Official"
-#define NV_BUILD_NAME                   "rel/gpu_drv/r595/VK595_35-124"
-#define NV_LAST_OFFICIAL_CHANGELIST_NUM (37628192)
+#define NV_BUILD_NAME                   "rel/gpu_drv/r595/VK595_35-126"
+#define NV_LAST_OFFICIAL_CHANGELIST_NUM (37724599)
 
 #else     /* Windows builds */
-#define NV_BUILD_BRANCH_VERSION         "VK595_35-7"
-#define NV_BUILD_CHANGELIST_NUM         (37628192)
+#define NV_BUILD_BRANCH_VERSION         "VK595_35-9"
+#define NV_BUILD_CHANGELIST_NUM         (37724599)
 #define NV_BUILD_TYPE                   "Official"
-#define NV_BUILD_NAME                   "595.92"
-#define NV_LAST_OFFICIAL_CHANGELIST_NUM (37628192)
+#define NV_BUILD_NAME                   "596.10"
+#define NV_LAST_OFFICIAL_CHANGELIST_NUM (37724599)
 #define NV_BUILD_BRANCH_BASE_VERSION    R595
 #endif
 // End buildmeister python edited section

src/common/inc/nvUnixVersion.h

@@ -5,7 +5,7 @@
     (defined(RMCFG_FEATURE_PLATFORM_GSP) && RMCFG_FEATURE_PLATFORM_GSP == 1) || \
     defined(NV_DCECORE)
 
-#define NV_VERSION_STRING               "595.44.03"
+#define NV_VERSION_STRING               "595.44.05"
 
 #else