]> git.ipfire.org Git - thirdparty/kernel/stable-queue.git/commitdiff
5.15-stable patches
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Feb 2025 07:04:26 +0000 (08:04 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 19 Feb 2025 07:04:26 +0000 (08:04 +0100)
added patches:
arm-dts-dra7-add-bus_dma_limit-for-l4-cfg-bus.patch
can-ems_pci-move-asix-ax99100-ids-to-pci_ids.h.patch
f2fs-fix-to-wait-dio-completion.patch
netdevsim-print-human-readable-ip-address.patch
parport_pc-add-support-for-asix-ax99100.patch
selftests-rtnetlink-update-netdevsim-ipsec-output-format.patch
serial-8250_pci-add-support-for-asix-ax99100.patch
x86-i8253-disable-pit-timer-0-when-not-in-use.patch

queue-5.15/arm-dts-dra7-add-bus_dma_limit-for-l4-cfg-bus.patch [new file with mode: 0644]
queue-5.15/can-ems_pci-move-asix-ax99100-ids-to-pci_ids.h.patch [new file with mode: 0644]
queue-5.15/f2fs-fix-to-wait-dio-completion.patch [new file with mode: 0644]
queue-5.15/netdevsim-print-human-readable-ip-address.patch [new file with mode: 0644]
queue-5.15/parport_pc-add-support-for-asix-ax99100.patch [new file with mode: 0644]
queue-5.15/selftests-rtnetlink-update-netdevsim-ipsec-output-format.patch [new file with mode: 0644]
queue-5.15/serial-8250_pci-add-support-for-asix-ax99100.patch [new file with mode: 0644]
queue-5.15/series
queue-5.15/x86-i8253-disable-pit-timer-0-when-not-in-use.patch [new file with mode: 0644]

diff --git a/queue-5.15/arm-dts-dra7-add-bus_dma_limit-for-l4-cfg-bus.patch b/queue-5.15/arm-dts-dra7-add-bus_dma_limit-for-l4-cfg-bus.patch
new file mode 100644 (file)
index 0000000..1b8be05
--- /dev/null
@@ -0,0 +1,54 @@
+From c1472ec1dc4419d0bae663c1a1e6cb98dc7881ad Mon Sep 17 00:00:00 2001
+From: Romain Naour <romain.naour@skf.com>
+Date: Fri, 15 Nov 2024 11:25:37 +0100
+Subject: ARM: dts: dra7: Add bus_dma_limit for l4 cfg bus
+
+From: Romain Naour <romain.naour@skf.com>
+
+commit c1472ec1dc4419d0bae663c1a1e6cb98dc7881ad upstream.
+
+A bus_dma_limit was added for l3 bus by commit cfb5d65f2595
+("ARM: dts: dra7: Add bus_dma_limit for L3 bus") to fix an issue
+observed only with SATA on DRA7-EVM with 4GB RAM and CONFIG_ARM_LPAE
+enabled.
+
+Since kernel 5.13, the SATA issue can be reproduced again following
+the SATA node move from L3 bus to L4_cfg in commit 8af15365a368
+("ARM: dts: Configure interconnect target module for dra7 sata").
+
+Fix it by adding an empty dma-ranges property to l4_cfg and
+segment@100000 nodes (parent device tree node of SATA controller) to
+inherit the 2GB dma ranges limit from l3 bus node.
+
+Note: A similar fix was applied for PCIe controller by commit
+90d4d3f4ea45 ("ARM: dts: dra7: Fix bus_dma_limit for PCIe").
+
+Fixes: 8af15365a368 ("ARM: dts: Configure interconnect target module for dra7 sata").
+Link: https://lore.kernel.org/linux-omap/c583e1bb-f56b-4489-8012-ce742e85f233@smile.fr/
+Cc: stable@vger.kernel.org # 5.13
+Signed-off-by: Romain Naour <romain.naour@skf.com>
+Link: https://lore.kernel.org/r/20241115102537.1330300-1-romain.naour@smile.fr
+Signed-off-by: Kevin Hilman <khilman@baylibre.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/arm/boot/dts/dra7-l4.dtsi |    2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/arch/arm/boot/dts/dra7-l4.dtsi
++++ b/arch/arm/boot/dts/dra7-l4.dtsi
+@@ -12,6 +12,7 @@
+       ranges = <0x00000000 0x4a000000 0x100000>,      /* segment 0 */
+                <0x00100000 0x4a100000 0x100000>,      /* segment 1 */
+                <0x00200000 0x4a200000 0x100000>;      /* segment 2 */
++      dma-ranges;
+       segment@0 {                                     /* 0x4a000000 */
+               compatible = "simple-pm-bus";
+@@ -557,6 +558,7 @@
+                        <0x0007e000 0x0017e000 0x001000>,      /* ap 124 */
+                        <0x00059000 0x00159000 0x001000>,      /* ap 125 */
+                        <0x0005a000 0x0015a000 0x001000>;      /* ap 126 */
++              dma-ranges;
+               target-module@2000 {                    /* 0x4a102000, ap 27 3c.0 */
+                       compatible = "ti,sysc";
diff --git a/queue-5.15/can-ems_pci-move-asix-ax99100-ids-to-pci_ids.h.patch b/queue-5.15/can-ems_pci-move-asix-ax99100-ids-to-pci_ids.h.patch
new file mode 100644 (file)
index 0000000..6c3f249
--- /dev/null
@@ -0,0 +1,38 @@
+From 3029ad91335353a70feb42acd24d580d70ab258b Mon Sep 17 00:00:00 2001
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Date: Mon, 24 Jul 2023 08:39:31 +0000
+Subject: can: ems_pci: move ASIX AX99100 ids to pci_ids.h
+
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+
+commit 3029ad91335353a70feb42acd24d580d70ab258b upstream.
+
+Move PCI Vendor and Device ID of ASIX AX99100 PCIe to Multi I/O
+Controller to pci_ids.h for its serial and parallel port driver
+support in subsequent patches.
+
+Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Acked-by: Bjorn Helgaas <bhelgaas@google.com>
+Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
+Link: https://lore.kernel.org/r/20230724083933.3173513-3-jiaqing.zhao@linux.intel.com
+[Moeko: Drop changes in drivers/net/can/sja1000/ems_pci.c]
+Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ include/linux/pci_ids.h |    4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/include/linux/pci_ids.h
++++ b/include/linux/pci_ids.h
+@@ -1743,6 +1743,10 @@
+ #define PCI_SUBDEVICE_ID_AT_2700FX    0x2701
+ #define PCI_SUBDEVICE_ID_AT_2701FX    0x2703
++#define PCI_VENDOR_ID_ASIX            0x125b
++#define PCI_DEVICE_ID_ASIX_AX99100    0x9100
++#define PCI_DEVICE_ID_ASIX_AX99100_LB 0x9110
++
+ #define PCI_VENDOR_ID_ESS             0x125d
+ #define PCI_DEVICE_ID_ESS_ESS1968     0x1968
+ #define PCI_DEVICE_ID_ESS_ESS1978     0x1978
diff --git a/queue-5.15/f2fs-fix-to-wait-dio-completion.patch b/queue-5.15/f2fs-fix-to-wait-dio-completion.patch
new file mode 100644 (file)
index 0000000..01be7da
--- /dev/null
@@ -0,0 +1,51 @@
+From 96cfeb0389530ae32ade8a48ae3ae1ac3b6c009d Mon Sep 17 00:00:00 2001
+From: Chao Yu <chao@kernel.org>
+Date: Thu, 27 Jun 2024 15:17:11 +0800
+Subject: f2fs: fix to wait dio completion
+
+From: Chao Yu <chao@kernel.org>
+
+commit 96cfeb0389530ae32ade8a48ae3ae1ac3b6c009d upstream.
+
+It should wait all existing dio write IOs before block removal,
+otherwise, previous direct write IO may overwrite data in the
+block which may be reused by other inode.
+
+Cc: stable@vger.kernel.org
+Signed-off-by: Chao Yu <chao@kernel.org>
+Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
+Signed-off-by: Alva Lan <alvalan9@foxmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ fs/f2fs/file.c |   13 +++++++++++++
+ 1 file changed, 13 insertions(+)
+
+--- a/fs/f2fs/file.c
++++ b/fs/f2fs/file.c
+@@ -965,6 +965,13 @@ int f2fs_setattr(struct user_namespace *
+                               return err;
+               }
++              /*
++               * wait for inflight dio, blocks should be removed after
++               * IO completion.
++               */
++              if (attr->ia_size < old_size)
++                      inode_dio_wait(inode);
++
+               down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
+               filemap_invalidate_lock(inode->i_mapping);
+@@ -1790,6 +1797,12 @@ static long f2fs_fallocate(struct file *
+       if (ret)
+               goto out;
++      /*
++       * wait for inflight dio, blocks should be removed after IO
++       * completion.
++       */
++      inode_dio_wait(inode);
++
+       if (mode & FALLOC_FL_PUNCH_HOLE) {
+               if (offset >= inode->i_size)
+                       goto out;
diff --git a/queue-5.15/netdevsim-print-human-readable-ip-address.patch b/queue-5.15/netdevsim-print-human-readable-ip-address.patch
new file mode 100644 (file)
index 0000000..77b5a33
--- /dev/null
@@ -0,0 +1,70 @@
+From c71bc6da6198a6d88df86094f1052bb581951d65 Mon Sep 17 00:00:00 2001
+From: Hangbin Liu <liuhangbin@gmail.com>
+Date: Thu, 10 Oct 2024 04:00:25 +0000
+Subject: netdevsim: print human readable IP address
+
+From: Hangbin Liu <liuhangbin@gmail.com>
+
+commit c71bc6da6198a6d88df86094f1052bb581951d65 upstream.
+
+Currently, IPSec addresses are printed in hexadecimal format, which is
+not user-friendly. e.g.
+
+  # cat /sys/kernel/debug/netdevsim/netdevsim0/ports/0/ipsec
+  SA count=2 tx=20
+  sa[0] rx ipaddr=0x00000000 00000000 00000000 0100a8c0
+  sa[0]    spi=0x00000101 proto=0x32 salt=0x0adecc3a crypt=1
+  sa[0]    key=0x3167608a ca4f1397 43565909 941fa627
+  sa[1] tx ipaddr=0x00000000 00000000 00000000 00000000
+  sa[1]    spi=0x00000100 proto=0x32 salt=0x0adecc3a crypt=1
+  sa[1]    key=0x3167608a ca4f1397 43565909 941fa627
+
+This patch updates the code to print the IPSec address in a human-readable
+format for easier debug. e.g.
+
+ # cat /sys/kernel/debug/netdevsim/netdevsim0/ports/0/ipsec
+ SA count=4 tx=40
+ sa[0] tx ipaddr=0.0.0.0
+ sa[0]    spi=0x00000100 proto=0x32 salt=0x0adecc3a crypt=1
+ sa[0]    key=0x3167608a ca4f1397 43565909 941fa627
+ sa[1] rx ipaddr=192.168.0.1
+ sa[1]    spi=0x00000101 proto=0x32 salt=0x0adecc3a crypt=1
+ sa[1]    key=0x3167608a ca4f1397 43565909 941fa627
+ sa[2] tx ipaddr=::
+ sa[2]    spi=0x00000100 proto=0x32 salt=0x0adecc3a crypt=1
+ sa[2]    key=0x3167608a ca4f1397 43565909 941fa627
+ sa[3] rx ipaddr=2000::1
+ sa[3]    spi=0x00000101 proto=0x32 salt=0x0adecc3a crypt=1
+ sa[3]    key=0x3167608a ca4f1397 43565909 941fa627
+
+Reviewed-by: Simon Horman <horms@kernel.org>
+Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
+Link: https://patch.msgid.link/20241010040027.21440-2-liuhangbin@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/net/netdevsim/ipsec.c |   12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/netdevsim/ipsec.c
++++ b/drivers/net/netdevsim/ipsec.c
+@@ -39,10 +39,14 @@ static ssize_t nsim_dbg_netdev_ops_read(
+               if (!sap->used)
+                       continue;
+-              p += scnprintf(p, bufsize - (p - buf),
+-                             "sa[%i] %cx ipaddr=0x%08x %08x %08x %08x\n",
+-                             i, (sap->rx ? 'r' : 't'), sap->ipaddr[0],
+-                             sap->ipaddr[1], sap->ipaddr[2], sap->ipaddr[3]);
++              if (sap->xs->props.family == AF_INET6)
++                      p += scnprintf(p, bufsize - (p - buf),
++                                     "sa[%i] %cx ipaddr=%pI6c\n",
++                                     i, (sap->rx ? 'r' : 't'), &sap->ipaddr);
++              else
++                      p += scnprintf(p, bufsize - (p - buf),
++                                     "sa[%i] %cx ipaddr=%pI4\n",
++                                     i, (sap->rx ? 'r' : 't'), &sap->ipaddr[3]);
+               p += scnprintf(p, bufsize - (p - buf),
+                              "sa[%i]    spi=0x%08x proto=0x%x salt=0x%08x crypt=%d\n",
+                              i, be32_to_cpu(sap->xs->id.spi),
diff --git a/queue-5.15/parport_pc-add-support-for-asix-ax99100.patch b/queue-5.15/parport_pc-add-support-for-asix-ax99100.patch
new file mode 100644 (file)
index 0000000..2948eb1
--- /dev/null
@@ -0,0 +1,52 @@
+From 16aae4c64600a6319a6f10dbff833fa198bf9599 Mon Sep 17 00:00:00 2001
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Date: Mon, 24 Jul 2023 08:39:33 +0000
+Subject: parport_pc: add support for ASIX AX99100
+
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+
+commit 16aae4c64600a6319a6f10dbff833fa198bf9599 upstream.
+
+The PCI function 2 on ASIX AX99100 PCIe to Multi I/O Controller can be
+configured as a single-port parallel port controller. The subvendor id
+is 0x2000 when configured as parallel port. It supports IEEE-1284 EPP /
+ECP with its ECR on BAR1.
+
+Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
+Link: https://lore.kernel.org/r/20230724083933.3173513-5-jiaqing.zhao@linux.intel.com
+Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/parport/parport_pc.c |    5 +++++
+ 1 file changed, 5 insertions(+)
+
+--- a/drivers/parport/parport_pc.c
++++ b/drivers/parport/parport_pc.c
+@@ -2611,6 +2611,7 @@ enum parport_pc_pci_cards {
+       netmos_9815,
+       netmos_9901,
+       netmos_9865,
++      asix_ax99100,
+       quatech_sppxp100,
+       wch_ch382l,
+       brainboxes_uc146,
+@@ -2676,6 +2677,7 @@ static struct parport_pc_pci {
+       /* netmos_9815 */               { 2, { { 0, 1 }, { 2, 3 }, } },
+       /* netmos_9901 */               { 1, { { 0, -1 }, } },
+       /* netmos_9865 */               { 1, { { 0, -1 }, } },
++      /* asix_ax99100 */              { 1, { { 0, 1 }, } },
+       /* quatech_sppxp100 */          { 1, { { 0, 1 }, } },
+       /* wch_ch382l */                { 1, { { 2, -1 }, } },
+       /* brainboxes_uc146 */  { 1, { { 3, -1 }, } },
+@@ -2766,6 +2768,9 @@ static const struct pci_device_id parpor
+         0xA000, 0x1000, 0, 0, netmos_9865 },
+       { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+         0xA000, 0x2000, 0, 0, netmos_9865 },
++      /* ASIX AX99100 PCIe to Multi I/O Controller */
++      { PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_ASIX_AX99100,
++        0xA000, 0x2000, 0, 0, asix_ax99100 },
+       /* Quatech SPPXP-100 Parallel port PCI ExpressCard */
+       { PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SPPXP_100,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, quatech_sppxp100 },
diff --git a/queue-5.15/selftests-rtnetlink-update-netdevsim-ipsec-output-format.patch b/queue-5.15/selftests-rtnetlink-update-netdevsim-ipsec-output-format.patch
new file mode 100644 (file)
index 0000000..6edc5cc
--- /dev/null
@@ -0,0 +1,40 @@
+From 3ec920bb978ccdc68a7dfb304d303d598d038cb1 Mon Sep 17 00:00:00 2001
+From: Hangbin Liu <liuhangbin@gmail.com>
+Date: Thu, 10 Oct 2024 04:00:27 +0000
+Subject: selftests: rtnetlink: update netdevsim ipsec output format
+
+From: Hangbin Liu <liuhangbin@gmail.com>
+
+commit 3ec920bb978ccdc68a7dfb304d303d598d038cb1 upstream.
+
+After the netdevsim update to use human-readable IP address formats for
+IPsec, we can now use the source and destination IPs directly in testing.
+Here is the result:
+  # ./rtnetlink.sh -t kci_test_ipsec_offload
+  PASS: ipsec_offload
+
+Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
+Acked-by: Stanislav Fomichev <sdf@fomichev.me>
+Link: https://patch.msgid.link/20241010040027.21440-4-liuhangbin@gmail.com
+Signed-off-by: Jakub Kicinski <kuba@kernel.org>
+Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ tools/testing/selftests/net/rtnetlink.sh |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/tools/testing/selftests/net/rtnetlink.sh
++++ b/tools/testing/selftests/net/rtnetlink.sh
+@@ -813,10 +813,10 @@ kci_test_ipsec_offload()
+       # does driver have correct offload info
+       diff $sysfsf - << EOF
+ SA count=2 tx=3
+-sa[0] tx ipaddr=0x00000000 00000000 00000000 00000000
++sa[0] tx ipaddr=$dstip
+ sa[0]    spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+ sa[0]    key=0x34333231 38373635 32313039 36353433
+-sa[1] rx ipaddr=0x00000000 00000000 00000000 037ba8c0
++sa[1] rx ipaddr=$srcip
+ sa[1]    spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+ sa[1]    key=0x34333231 38373635 32313039 36353433
+ EOF
diff --git a/queue-5.15/serial-8250_pci-add-support-for-asix-ax99100.patch b/queue-5.15/serial-8250_pci-add-support-for-asix-ax99100.patch
new file mode 100644 (file)
index 0000000..162178d
--- /dev/null
@@ -0,0 +1,49 @@
+From 0b32216557ce3b2a468d1282d99b428bf72ff532 Mon Sep 17 00:00:00 2001
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Date: Mon, 24 Jul 2023 08:39:32 +0000
+Subject: serial: 8250_pci: add support for ASIX AX99100
+
+From: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+
+commit 0b32216557ce3b2a468d1282d99b428bf72ff532 upstream.
+
+Each of the 4 PCI functions on ASIX AX99100 PCIe to Multi I/O
+Controller can be configured as a single-port serial port controller.
+The subvendor id is 0x1000 when configured as serial port and MSI
+interrupts are supported.
+
+Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
+Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Link: https://lore.kernel.org/r/20230724083933.3173513-4-jiaqing.zhao@linux.intel.com
+Signed-off-by: Tomita Moeko <tomitamoeko@gmail.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/tty/serial/8250/8250_pci.c |   10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -66,6 +66,8 @@ static const struct pci_device_id pci_us
+                        0xA000, 0x1000) },
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9922,
+                        0xA000, 0x1000) },
++      { PCI_DEVICE_SUB(PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_ASIX_AX99100,
++                       0xA000, 0x1000) },
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_HP_3PAR, PCI_DEVICE_ID_HPE_PCI_SERIAL,
+                        PCI_ANY_ID, PCI_ANY_ID) },
+       { }
+@@ -6299,6 +6301,14 @@ static const struct pci_device_id serial
+       {       PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+               0xA000, 0x3004,
+               0, 0, pbn_b0_bt_4_115200 },
++
++      /*
++       * ASIX AX99100 PCIe to Multi I/O Controller
++       */
++      {       PCI_VENDOR_ID_ASIX, PCI_DEVICE_ID_ASIX_AX99100,
++              0xA000, 0x1000,
++              0, 0, pbn_b0_1_115200 },
++
+       /* Intel CE4100 */
+       {       PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CE4100_UART,
+               PCI_ANY_ID,  PCI_ANY_ID, 0, 0,
index fbef32ed4b36ab5bfc85f24d39a43212bcf81275..8020f101773c01d967bf575ae9cc66ad12e7a9be 100644 (file)
@@ -420,3 +420,11 @@ alpha-replace-hardcoded-stack-offsets-with-autogenerated-ones.patch
 nilfs2-do-not-output-warnings-when-clearing-dirty-buffers.patch
 nilfs2-do-not-force-clear-folio-if-buffer-is-referenced.patch
 nilfs2-protect-access-to-buffers-with-no-active-references.patch
+can-ems_pci-move-asix-ax99100-ids-to-pci_ids.h.patch
+serial-8250_pci-add-support-for-asix-ax99100.patch
+parport_pc-add-support-for-asix-ax99100.patch
+netdevsim-print-human-readable-ip-address.patch
+selftests-rtnetlink-update-netdevsim-ipsec-output-format.patch
+arm-dts-dra7-add-bus_dma_limit-for-l4-cfg-bus.patch
+f2fs-fix-to-wait-dio-completion.patch
+x86-i8253-disable-pit-timer-0-when-not-in-use.patch
diff --git a/queue-5.15/x86-i8253-disable-pit-timer-0-when-not-in-use.patch b/queue-5.15/x86-i8253-disable-pit-timer-0-when-not-in-use.patch
new file mode 100644 (file)
index 0000000..61180b1
--- /dev/null
@@ -0,0 +1,96 @@
+From 70e6b7d9ae3c63df90a7bba7700e8d5c300c3c60 Mon Sep 17 00:00:00 2001
+From: David Woodhouse <dwmw@amazon.co.uk>
+Date: Fri, 2 Aug 2024 14:55:54 +0100
+Subject: x86/i8253: Disable PIT timer 0 when not in use
+
+From: David Woodhouse <dwmw@amazon.co.uk>
+
+commit 70e6b7d9ae3c63df90a7bba7700e8d5c300c3c60 upstream.
+
+Leaving the PIT interrupt running can cause noticeable steal time for
+virtual guests. The VMM generally has a timer which toggles the IRQ input
+to the PIC and I/O APIC, which takes CPU time away from the guest. Even
+on real hardware, running the counter may use power needlessly (albeit
+not much).
+
+Make sure it's turned off if it isn't going to be used.
+
+Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Tested-by: Michael Kelley <mhkelley@outlook.com>
+Link: https://lore.kernel.org/all/20240802135555.564941-1-dwmw2@infradead.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/kernel/i8253.c     |   11 +++++++++--
+ drivers/clocksource/i8253.c |   13 +++++++++----
+ include/linux/i8253.h       |    1 +
+ 3 files changed, 19 insertions(+), 6 deletions(-)
+
+--- a/arch/x86/kernel/i8253.c
++++ b/arch/x86/kernel/i8253.c
+@@ -8,6 +8,7 @@
+ #include <linux/timex.h>
+ #include <linux/i8253.h>
++#include <asm/hypervisor.h>
+ #include <asm/apic.h>
+ #include <asm/hpet.h>
+ #include <asm/time.h>
+@@ -39,9 +40,15 @@ static bool __init use_pit(void)
+ bool __init pit_timer_init(void)
+ {
+-      if (!use_pit())
++      if (!use_pit()) {
++              /*
++               * Don't just ignore the PIT. Ensure it's stopped, because
++               * VMMs otherwise steal CPU time just to pointlessly waggle
++               * the (masked) IRQ.
++               */
++              clockevent_i8253_disable();
+               return false;
+-
++      }
+       clockevent_i8253_init(true);
+       global_clock_event = &i8253_clockevent;
+       return true;
+--- a/drivers/clocksource/i8253.c
++++ b/drivers/clocksource/i8253.c
+@@ -108,11 +108,8 @@ int __init clocksource_i8253_init(void)
+ #endif
+ #ifdef CONFIG_CLKEVT_I8253
+-static int pit_shutdown(struct clock_event_device *evt)
++void clockevent_i8253_disable(void)
+ {
+-      if (!clockevent_state_oneshot(evt) && !clockevent_state_periodic(evt))
+-              return 0;
+-
+       raw_spin_lock(&i8253_lock);
+       outb_p(0x30, PIT_MODE);
+@@ -123,6 +120,14 @@ static int pit_shutdown(struct clock_eve
+       }
+       raw_spin_unlock(&i8253_lock);
++}
++
++static int pit_shutdown(struct clock_event_device *evt)
++{
++      if (!clockevent_state_oneshot(evt) && !clockevent_state_periodic(evt))
++              return 0;
++
++      clockevent_i8253_disable();
+       return 0;
+ }
+--- a/include/linux/i8253.h
++++ b/include/linux/i8253.h
+@@ -24,6 +24,7 @@ extern raw_spinlock_t i8253_lock;
+ extern bool i8253_clear_counter_on_shutdown;
+ extern struct clock_event_device i8253_clockevent;
+ extern void clockevent_i8253_init(bool oneshot);
++extern void clockevent_i8253_disable(void);
+ extern void setup_pit_timer(void);