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cddd459140
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>
27 lines
940 B
Diff
27 lines
940 B
Diff
From 4677dd55d55832dab1e4f41fe9a7fabe8bb95197 Mon Sep 17 00:00:00 2001
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From: Jan Kiszka <jan.kiszka@siemens.com>
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Date: Thu, 24 Nov 2016 08:27:45 +0100
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Subject: [PATCH] ivshmem-net: Map shmem region as RAM
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No need for special caching, simply map the shared memory region like
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RAM, thus write-back. This gives us another order of magnitude in
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throughput.
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Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
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(cherry picked from commit af59c6541a65622cab498851e01653dd378cd9f8)
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---
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drivers/net/ivshmem-net.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/ivshmem-net.c
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+++ b/drivers/net/ivshmem-net.c
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@@ -802,7 +802,7 @@ static int ivshm_net_probe(struct pci_de
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if (!devm_request_mem_region(&pdev->dev, shmaddr, shmlen, DRV_NAME))
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return -EBUSY;
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- shm = devm_memremap(&pdev->dev, shmaddr, shmlen, MEMREMAP_WC);
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+ shm = devm_memremap(&pdev->dev, shmaddr, shmlen, MEMREMAP_WB);
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if (!shm)
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return -ENOMEM;
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