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authorJeremy Cline <jcline@redhat.com>2020-04-14 17:53:23 -0400
committerJeremy Cline <jcline@redhat.com>2020-04-14 17:53:23 -0400
commit0310b312a7e5dffcdf24ae835ed732f7a6a9c471 (patch)
treeca12edc19a6f6e05ef31919d65adf895a39d12c0 /ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch
parent48b75e92d6f4024e7f99442334f6969345516a72 (diff)
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kernel-5.7.0-0.rc1.20200414git8632e9b5645b.1
This is an automated commit generated from the kernel-5.7.0-0.rc1.20200414git8632e9b5645b.1 tag in https://gitlab.com/cki-project/kernel-ark.git
Diffstat (limited to 'ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch')
-rw-r--r--ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch64
1 files changed, 0 insertions, 64 deletions
diff --git a/ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch b/ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch
deleted file mode 100644
index 3dcfd4969..000000000
--- a/ACPI-irq-Workaround-firmware-issue-on-X-Gene-based-m400.patch
+++ /dev/null
@@ -1,64 +0,0 @@
-From dbdda4277cf0422a9ccb7ea98d0263c3cdbecdf6 Mon Sep 17 00:00:00 2001
-From: Mark Salter <msalter@redhat.com>
-Date: Tue, 8 May 2018 21:54:39 -0400
-Subject: [PATCH] ACPI / irq: Workaround firmware issue on X-Gene based
- m400
-
-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.
-
-Signed-off-by: Mark Salter <msalter@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 7c352cba0528..028c1a564cff 100644
---- a/drivers/acpi/irq.c
-+++ b/drivers/acpi/irq.c
-@@ -129,6 +129,7 @@ struct acpi_irq_parse_one_ctx {
- unsigned int index;
- unsigned long *res_flags;
- struct irq_fwspec *fwspec;
-+ bool skip_producer_check;
- };
-
- /**
-@@ -200,7 +201,8 @@ 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;
-@@ -235,8 +237,19 @@ 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;
- }
---
-2.17.0
-