Compare commits
No commits in common. 'c9' and 'c9-beta' have entirely different histories.
@ -1,59 +0,0 @@
|
||||
From 638fdc27d742ea45fc51a9b17fc4799c4edb6b17 Mon Sep 17 00:00:00 2001
|
||||
From: Daniil Tatianin <d-tatianin@yandex-team.ru>
|
||||
Date: Thu, 11 Apr 2024 22:51:35 +0300
|
||||
Subject: [PATCH] pciinit: don't misalign large BARs
|
||||
MIME-Version: 1.0
|
||||
Content-Type: text/plain; charset=UTF-8
|
||||
Content-Transfer-Encoding: 8bit
|
||||
|
||||
RH-Author: Gerd Hoffmann <kraxel@redhat.com>
|
||||
RH-MergeRequest: 13: pciinit: don't misalign large BARs
|
||||
RH-Jira: RHEL-68955
|
||||
RH-Acked-by: Luigi Leonardi <None>
|
||||
RH-Acked-by: Oliver Steffen <osteffen@redhat.com>
|
||||
RH-Commit: [1/1] 5761e0038bc6e301a59e99af1ada3304623c031b
|
||||
|
||||
Previously we would unconditionally lower the alignment for large BARs
|
||||
in case their alignment was greater than "pci_mem64_top >> 11", this
|
||||
would make it impossible to use these devices by the kernel:
|
||||
[ 13.821108] pci 0000:9c:00.0: can't claim BAR 1 [mem 0x66000000000-0x67fffffffff 64bit pref]: no compatible bridge window
|
||||
[ 13.823492] pci 0000:9d:00.0: can't claim BAR 1 [mem 0x64000000000-0x65fffffffff 64bit pref]: no compatible bridge window
|
||||
[ 13.824218] pci 0000:9e:00.0: can't claim BAR 1 [mem 0x62000000000-0x63fffffffff 64bit pref]: no compatible bridge window
|
||||
[ 13.828322] pci 0000:8a:00.0: can't claim BAR 1 [mem 0x6e000000000-0x6ffffffffff 64bit pref]: no compatible bridge window
|
||||
[ 13.830691] pci 0000:8b:00.0: can't claim BAR 1 [mem 0x6c000000000-0x6dfffffffff 64bit pref]: no compatible bridge window
|
||||
[ 13.832218] pci 0000:8c:00.0: can't claim BAR 1 [mem 0x6a000000000-0x6bfffffffff 64bit pref]: no compatible bridge window
|
||||
|
||||
Fix it by only overwriting the alignment in case it's actually greater
|
||||
than the desired by the BAR window.
|
||||
|
||||
Fixes: 96a8d130a8c ("be less conservative with the 64bit pci io window")
|
||||
Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
|
||||
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
|
||||
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
|
||||
(cherry picked from commit e5f2e4c69643bc3cd385306a9e5d29e11578148c)
|
||||
Resolves: RHEL-68955
|
||||
---
|
||||
src/fw/pciinit.c | 6 ++++--
|
||||
1 file changed, 4 insertions(+), 2 deletions(-)
|
||||
|
||||
diff --git a/src/fw/pciinit.c b/src/fw/pciinit.c
|
||||
index 6b13cd5b..bb44dc29 100644
|
||||
--- a/src/fw/pciinit.c
|
||||
+++ b/src/fw/pciinit.c
|
||||
@@ -970,9 +970,11 @@ static int pci_bios_check_devices(struct pci_bus *busses)
|
||||
int resource_optional = 0;
|
||||
if (hotplug_support == HOTPLUG_PCIE)
|
||||
resource_optional = pcie_cap && (type == PCI_REGION_TYPE_IO);
|
||||
+
|
||||
+ u64 top_align = pci_mem64_top >> 11;
|
||||
if (hotplug_support && pci_pad_mem64 && is64
|
||||
- && (type == PCI_REGION_TYPE_PREFMEM))
|
||||
- align = pci_mem64_top >> 11;
|
||||
+ && (type == PCI_REGION_TYPE_PREFMEM) && (top_align > align))
|
||||
+ align = top_align;
|
||||
if (align > sum && hotplug_support && !resource_optional)
|
||||
sum = align; /* reserve min size for hot-plug */
|
||||
if (size > sum) {
|
||||
--
|
||||
2.39.3
|
||||
|
||||
Loading…
Reference in new issue