mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 17:48:58 +00:00
538a1d740c
The patches were generated from the RPi repo with the following command: git format-patch v6.6.58..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
96 lines
2.5 KiB
Diff
96 lines
2.5 KiB
Diff
From a27d76f4517d56a6471def2f76687e83fd2a7923 Mon Sep 17 00:00:00 2001
|
|
From: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
|
|
Date: Mon, 29 Jul 2024 16:53:18 +0100
|
|
Subject: [PATCH 1342/1350] numa/emulation: Check emulated zones around the CMA
|
|
window
|
|
|
|
... Make sure CMA zones do not straddle the emulated NUMA nodes ...
|
|
|
|
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
|
|
---
|
|
drivers/base/numa_emulation.c | 5 +++++
|
|
include/linux/cma.h | 10 ++++++++++
|
|
mm/cma.c | 36 +++++++++++++++++++++++++++++++++++
|
|
3 files changed, 51 insertions(+)
|
|
|
|
--- a/drivers/base/numa_emulation.c
|
|
+++ b/drivers/base/numa_emulation.c
|
|
@@ -7,6 +7,7 @@
|
|
* Author: Maíra Canal <mcanal@igalia.com>
|
|
* Author: Tvrtko Ursulin <tursulin@igalia.com>
|
|
*/
|
|
+#include <linux/cma.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include "numa_emulation.h"
|
|
@@ -55,6 +56,10 @@ int __init numa_emu_init(void)
|
|
if (i == (emu_nodes - 1) && e != end)
|
|
e = end;
|
|
|
|
+ ret = cma_check_range(&s, &e);
|
|
+ if (ret)
|
|
+ return ret;
|
|
+
|
|
pr_info("Faking a node at [mem %pap-%pap]\n", &s, &e);
|
|
ret = numa_add_memblk(i, s, e + 1);
|
|
if (ret) {
|
|
--- a/include/linux/cma.h
|
|
+++ b/include/linux/cma.h
|
|
@@ -56,4 +56,14 @@ extern bool cma_release(struct cma *cma,
|
|
extern int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data);
|
|
|
|
extern void cma_reserve_pages_on_error(struct cma *cma);
|
|
+
|
|
+#ifdef CONFIG_CMA
|
|
+extern int cma_check_range(u64 *start, u64 *end);
|
|
+#else
|
|
+static inline int cma_check_range(u64 *start, u64 *end)
|
|
+{
|
|
+ return 0;
|
|
+}
|
|
+#endif
|
|
+
|
|
#endif
|
|
--- a/mm/cma.c
|
|
+++ b/mm/cma.c
|
|
@@ -587,3 +587,39 @@ int cma_for_each_area(int (*it)(struct c
|
|
|
|
return 0;
|
|
}
|
|
+
|
|
+struct cma_check_range_data {
|
|
+ u64 start, end;
|
|
+};
|
|
+
|
|
+static int check_range(struct cma *cma_, void *data)
|
|
+{
|
|
+ struct cma_check_range_data *range = data;
|
|
+ struct cma_check_range_data cma;
|
|
+ bool starts_in_range;
|
|
+ bool ends_in_range;
|
|
+
|
|
+ cma.start = cma_get_base(cma_);
|
|
+ cma.end = cma.start + cma_get_size(cma_) - 1;
|
|
+
|
|
+ starts_in_range = cma.start >= range->start && cma.start <= range->end;
|
|
+ ends_in_range = cma.end >= range->start && cma.end <= range->end;
|
|
+
|
|
+ if (starts_in_range == ends_in_range)
|
|
+ return 0;
|
|
+
|
|
+ pr_notice("CMA %s [%llx-%llx] straddles range [%llx-%llx]\n",
|
|
+ cma_->name, cma.start, cma.end, range->start, range->end);
|
|
+
|
|
+ return -EINVAL;
|
|
+}
|
|
+
|
|
+int cma_check_range(u64 *start, u64 *end)
|
|
+{
|
|
+ struct cma_check_range_data range = {
|
|
+ .start = *start,
|
|
+ .end = *end,
|
|
+ };
|
|
+
|
|
+ return cma_for_each_area(check_range, &range);
|
|
+}
|