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authorYangbo Lu <yangbo.lu@nxp.com>2020-04-10 10:47:05 +0800
committerPetr Štetiar <ynezz@true.cz>2020-05-07 12:53:06 +0200
commitcddd4591404fb4c53dc0b3c0b15b942cdbed4356 (patch)
tree392c1179de46b0f804e3789edca19069b64e6b44 /target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch
parentd1d2c0b5579ea4f69a42246c9318539d61ba1999 (diff)
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layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release which was tagged LSDK-20.04-V5.4. https://source.codeaurora.org/external/qoriq/qoriq-components/linux/ For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in LSDK, port the dts patches from 4.14. The patches are sorted into the following categories: 301-arch-xxxx 302-dts-xxxx 303-core-xxxx 701-net-xxxx 801-audio-xxxx 802-can-xxxx 803-clock-xxxx 804-crypto-xxxx 805-display-xxxx 806-dma-xxxx 807-gpio-xxxx 808-i2c-xxxx 809-jailhouse-xxxx 810-keys-xxxx 811-kvm-xxxx 812-pcie-xxxx 813-pm-xxxx 814-qe-xxxx 815-sata-xxxx 816-sdhc-xxxx 817-spi-xxxx 818-thermal-xxxx 819-uart-xxxx 820-usb-xxxx 821-vfio-xxxx Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch26
1 files changed, 26 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch b/target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch
new file mode 100644
index 0000000000..8a3bcd6502
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/809-jailhouse-0002-ivshmem-net-Map-shmem-region-as-RAM.patch
@@ -0,0 +1,26 @@
+From 4677dd55d55832dab1e4f41fe9a7fabe8bb95197 Mon Sep 17 00:00:00 2001
+From: Jan Kiszka <jan.kiszka@siemens.com>
+Date: Thu, 24 Nov 2016 08:27:45 +0100
+Subject: [PATCH] ivshmem-net: Map shmem region as RAM
+
+No need for special caching, simply map the shared memory region like
+RAM, thus write-back. This gives us another order of magnitude in
+throughput.
+
+Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
+(cherry picked from commit af59c6541a65622cab498851e01653dd378cd9f8)
+---
+ drivers/net/ivshmem-net.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/net/ivshmem-net.c
++++ b/drivers/net/ivshmem-net.c
+@@ -802,7 +802,7 @@ static int ivshm_net_probe(struct pci_de
+ if (!devm_request_mem_region(&pdev->dev, shmaddr, shmlen, DRV_NAME))
+ return -EBUSY;
+
+- shm = devm_memremap(&pdev->dev, shmaddr, shmlen, MEMREMAP_WC);
++ shm = devm_memremap(&pdev->dev, shmaddr, shmlen, MEMREMAP_WB);
+ if (!shm)
+ return -ENOMEM;
+