diff options
Diffstat (limited to 'SOURCES/0001-ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m.patch')
| -rw-r--r-- | SOURCES/0001-ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/SOURCES/0001-ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m.patch b/SOURCES/0001-ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m.patch deleted file mode 100644 index e262728..0000000 --- a/SOURCES/0001-ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 -From: Mark Salter <msalter@redhat.com> -Date: Thu, 10 May 2018 17:38:43 -0400 -Subject: [PATCH] ACPI / irq: Workaround firmware issue on X-Gene based m400 - -Message-id: <20180510173844.29580-3-msalter@redhat.com> -Patchwork-id: 214383 -O-Subject: [RHEL-8 BZ1519554 2/3] ACPI / irq: Workaround firmware issue on X-Gene based m400 -Bugzilla: 1519554 -RH-Acked-by: Al Stone <astone@redhat.com> -RH-Acked-by: Tony Camuso <tcamuso@redhat.com> - -Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1519554 -Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=16144520 - -The ACPI firmware on the xgene-based m400 platorms erroneously -describes its UART interrupt as ACPI_PRODUCER rather than -ACPI_CONSUMER. This leads to the UART driver being unable to -find its interrupt and the kernel unable find a console. -Work around this by avoiding the producer/consumer check -for X-Gene UARTs. - -Upstream Status: RHEL only -Signed-off-by: Mark Salter <msalter@redhat.com> -Signed-off-by: Herton R. Krzesinski <herton@redhat.com> ---- - drivers/acpi/irq.c | 17 +++++++++++++++-- - 1 file changed, 15 insertions(+), 2 deletions(-) - -diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c -index e209081d644b..7484bcf59a1b 100644 ---- a/drivers/acpi/irq.c -+++ b/drivers/acpi/irq.c -@@ -126,6 +126,7 @@ struct acpi_irq_parse_one_ctx { - unsigned int index; - unsigned long *res_flags; - struct irq_fwspec *fwspec; -+ bool skip_producer_check; - }; - - /** -@@ -197,7 +198,8 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares, - return AE_CTRL_TERMINATE; - case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: - eirq = &ares->data.extended_irq; -- if (eirq->producer_consumer == ACPI_PRODUCER) -+ if (!ctx->skip_producer_check && -+ eirq->producer_consumer == ACPI_PRODUCER) - return AE_OK; - if (ctx->index >= eirq->interrupt_count) { - ctx->index -= eirq->interrupt_count; -@@ -232,8 +234,19 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares, - static int acpi_irq_parse_one(acpi_handle handle, unsigned int index, - struct irq_fwspec *fwspec, unsigned long *flags) - { -- struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec }; -+ struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec, false }; - -+ /* -+ * Firmware on arm64-based HPE m400 platform incorrectly marks -+ * its UART interrupt as ACPI_PRODUCER rather than ACPI_CONSUMER. -+ * Don't do the producer/consumer check for that device. -+ */ -+ if (IS_ENABLED(CONFIG_ARM64)) { -+ struct acpi_device *adev = acpi_bus_get_acpi_device(handle); -+ -+ if (adev && !strcmp(acpi_device_hid(adev), "APMC0D08")) -+ ctx.skip_producer_check = true; -+ } - acpi_walk_resources(handle, METHOD_NAME__CRS, acpi_irq_parse_one_cb, &ctx); - return ctx.rc; - } --- -2.28.0 - |