mirror of
https://github.com/coolsnowwolf/lede.git
synced 2025-07-17 09:16:59 +08:00
d81c03f05e
These patches were generated from: https://github.com/raspberrypi/linux/commits/rpi-6.12.y With the following command: git format-patch -N v6.12.27..HEAD (HEAD -> 8d3206ee456a5ecdf9ddbfd8e5e231e4f0cd716e) Exceptions: - (def)configs patches - github workflows patches - applied & reverted patches - readme patches - wireless patches Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
49 lines
1.3 KiB
Diff
49 lines
1.3 KiB
Diff
From 4263812f0e010a193c6654f75eda49220066bd57 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Tue, 3 Dec 2024 15:57:01 +0000
|
|
Subject: [PATCH] nvme-pci: Disable Host Memory Buffer usage
|
|
|
|
Some NVME drives seem to request significant amounts of DMA coherent
|
|
memory - enough to exhaust our standard 64MB CMA allocation.
|
|
|
|
Try disabling the feature to see what effect it has - drives should
|
|
continue to function without it.
|
|
|
|
Link: https://github.com/raspberrypi/linux/issues/6504
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
---
|
|
drivers/nvme/host/pci.c | 4 ++++
|
|
1 file changed, 4 insertions(+)
|
|
|
|
--- a/drivers/nvme/host/pci.c
|
|
+++ b/drivers/nvme/host/pci.c
|
|
@@ -2083,6 +2083,7 @@ static void nvme_free_host_mem(struct nv
|
|
dev->nr_host_mem_descs = 0;
|
|
}
|
|
|
|
+#if 0
|
|
static int __nvme_alloc_host_mem(struct nvme_dev *dev, u64 preferred,
|
|
u32 chunk_size)
|
|
{
|
|
@@ -2151,9 +2152,11 @@ out:
|
|
dev->host_mem_descs = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
+#endif
|
|
|
|
static int nvme_alloc_host_mem(struct nvme_dev *dev, u64 min, u64 preferred)
|
|
{
|
|
+#if 0
|
|
u64 min_chunk = min_t(u64, preferred, PAGE_SIZE * MAX_ORDER_NR_PAGES);
|
|
u64 hmminds = max_t(u32, dev->ctrl.hmminds * 4096, PAGE_SIZE * 2);
|
|
u64 chunk_size;
|
|
@@ -2166,6 +2169,7 @@ static int nvme_alloc_host_mem(struct nv
|
|
nvme_free_host_mem(dev);
|
|
}
|
|
}
|
|
+#endif
|
|
|
|
return -ENOMEM;
|
|
}
|