[1/3] ACPI/APEI: Add hest_parse_pcie_aer()
Commit Message
From: leoliu-oc <leoliu-oc@zhaoxin.com>
The purpose of the function apei_hest_parse_aer() is used to parse and
extract register value from HEST PCIe AER structures.
Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com>
---
drivers/acpi/apei/hest.c | 77 ++++++++++++++++++++++++++++++++++++++--
include/acpi/actbl1.h | 7 ++++
include/acpi/apei.h | 8 +++++
3 files changed, 90 insertions(+), 2 deletions(-)
Comments
On Wed, Nov 15, 2023 at 10:16 AM LeoLiu-oc <LeoLiu-oc@zhaoxin.com> wrote:
>
> From: leoliu-oc <leoliu-oc@zhaoxin.com>
>
> The purpose of the function apei_hest_parse_aer() is used to parse and
> extract register value from HEST PCIe AER structures.
>
> Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com>
> ---
> drivers/acpi/apei/hest.c | 77 ++++++++++++++++++++++++++++++++++++++--
> include/acpi/actbl1.h | 7 ++++
> include/acpi/apei.h | 8 +++++
> 3 files changed, 90 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
> index 6aef1ee5e1bd..7fb797fdc1b1 100644
> --- a/drivers/acpi/apei/hest.c
> +++ b/drivers/acpi/apei/hest.c
> @@ -22,6 +22,7 @@
> #include <linux/kdebug.h>
> #include <linux/highmem.h>
> #include <linux/io.h>
> +#include <linux/pci.h>
> #include <linux/platform_device.h>
> #include <acpi/apei.h>
> #include <acpi/ghes.h>
> @@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr)
> return len;
> };
>
> -typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
> +#ifdef CONFIG_ACPI_APEI
> +static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p,
> + struct pci_dev *dev)
> +{
> + return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) &&
> + ACPI_HEST_BUS(p->bus) == dev->bus->number &&
> + p->device == PCI_SLOT(dev->devfn) &&
> + p->function == PCI_FUNC(dev->devfn);
> +}
> +
> +static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr,
> + struct pci_dev *dev)
> +{
> + u16 hest_type = hest_hdr->type;
> + u8 pcie_type = pci_pcie_type(dev);
> + struct acpi_hest_aer_common *common;
> +
> + common = (struct acpi_hest_aer_common *)(hest_hdr + 1);
> +
> + switch (hest_type) {
> + case ACPI_HEST_TYPE_AER_ROOT_PORT:
> + if (pcie_type != PCI_EXP_TYPE_ROOT_PORT)
> + return false;
> + break;
> + case ACPI_HEST_TYPE_AER_ENDPOINT:
> + if (pcie_type != PCI_EXP_TYPE_ENDPOINT)
> + return false;
> + break;
> + case ACPI_HEST_TYPE_AER_BRIDGE:
> + if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE &&
> + pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE)
> + return false;
> + break;
> + default:
> + return false;
> + break;
> + }
> +
> + if (common->flags & ACPI_HEST_GLOBAL)
> + return true;
> +
> + if (hest_match_pci_devfn(common, dev))
> + return true;
> +
> + return false;
> +}
> +
> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
> +{
> + struct hest_parse_aer_info *info = data;
> +
> + if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev))
> + return 0;
> +
> + switch (hest_hdr->type) {
> + case ACPI_HEST_TYPE_AER_ROOT_PORT:
> + info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr;
> + return 1;
> + break;
> + case ACPI_HEST_TYPE_AER_ENDPOINT:
> + info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr;
> + return 1;
> + break;
> + case ACPI_HEST_TYPE_AER_BRIDGE:
> + info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr;
> + return 1;
> + break;
> + default:
> + return 0;
> + break;
> + }
> +}
> +#endif
>
> -static int apei_hest_parse(apei_hest_func_t func, void *data)
> +int apei_hest_parse(apei_hest_func_t func, void *data)
> {
> struct acpi_hest_header *hest_hdr;
> int i, rc, len;
> diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
> index a33375e055ad..90c27dc5325f 100644
> --- a/include/acpi/actbl1.h
> +++ b/include/acpi/actbl1.h
This is an ACPICA header and it cannot be modified just like this.
The way to do that is to submit a pull request with the desired change
to the upstream ACPICA project on GitHub and add a Link tag pointing
to the upstream PR to the corresponding Linux patch. Then, the Linux
patch can only be applied after the corresponding upstream PR has been
merged.
Thanks!
> @@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status {
> u32 error_severity;
> };
>
> +struct hest_parse_aer_info {
> + struct pci_dev *pci_dev;
> + struct acpi_hest_aer *hest_aer_endpoint;
> + struct acpi_hest_aer_root *hest_aer_root_port;
> + struct acpi_hest_aer_bridge *hest_aer_bridge;
> +};
> +
> /* Values for block_status flags above */
>
> #define ACPI_HEST_UNCORRECTABLE (1)
> diff --git a/include/acpi/apei.h b/include/acpi/apei.h
> index dc60f7db5524..d12e6b6c4546 100644
> --- a/include/acpi/apei.h
> +++ b/include/acpi/apei.h
> @@ -33,10 +33,18 @@ void __init acpi_ghes_init(void);
> static inline void acpi_ghes_init(void) { }
> #endif
>
> +typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
> +int apei_hest_parse(apei_hest_func_t func, void *data);
> +
> #ifdef CONFIG_ACPI_APEI
> void __init acpi_hest_init(void);
> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data);
> #else
> static inline void acpi_hest_init(void) { }
> +static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
> +{
> + return 0;
> +}
> #endif
>
> int erst_write(const struct cper_record_header *record);
> --
> 2.34.1
>
在 2023/12/7 0:35, Rafael J. Wysocki 写道:
> On Wed, Nov 15, 2023 at 10:16 AM LeoLiu-oc <LeoLiu-oc@zhaoxin.com> wrote:
>>
>> From: leoliu-oc <leoliu-oc@zhaoxin.com>
>>
>> The purpose of the function apei_hest_parse_aer() is used to parse and
>> extract register value from HEST PCIe AER structures.
>>
>> Signed-off-by: leoliu-oc <leoliu-oc@zhaoxin.com>
>> ---
>> drivers/acpi/apei/hest.c | 77 ++++++++++++++++++++++++++++++++++++++--
>> include/acpi/actbl1.h | 7 ++++
>> include/acpi/apei.h | 8 +++++
>> 3 files changed, 90 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
>> index 6aef1ee5e1bd..7fb797fdc1b1 100644
>> --- a/drivers/acpi/apei/hest.c
>> +++ b/drivers/acpi/apei/hest.c
>> @@ -22,6 +22,7 @@
>> #include <linux/kdebug.h>
>> #include <linux/highmem.h>
>> #include <linux/io.h>
>> +#include <linux/pci.h>
>> #include <linux/platform_device.h>
>> #include <acpi/apei.h>
>> #include <acpi/ghes.h>
>> @@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr)
>> return len;
>> };
>>
>> -typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
>> +#ifdef CONFIG_ACPI_APEI
>> +static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p,
>> + struct pci_dev *dev)
>> +{
>> + return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) &&
>> + ACPI_HEST_BUS(p->bus) == dev->bus->number &&
>> + p->device == PCI_SLOT(dev->devfn) &&
>> + p->function == PCI_FUNC(dev->devfn);
>> +}
>> +
>> +static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr,
>> + struct pci_dev *dev)
>> +{
>> + u16 hest_type = hest_hdr->type;
>> + u8 pcie_type = pci_pcie_type(dev);
>> + struct acpi_hest_aer_common *common;
>> +
>> + common = (struct acpi_hest_aer_common *)(hest_hdr + 1);
>> +
>> + switch (hest_type) {
>> + case ACPI_HEST_TYPE_AER_ROOT_PORT:
>> + if (pcie_type != PCI_EXP_TYPE_ROOT_PORT)
>> + return false;
>> + break;
>> + case ACPI_HEST_TYPE_AER_ENDPOINT:
>> + if (pcie_type != PCI_EXP_TYPE_ENDPOINT)
>> + return false;
>> + break;
>> + case ACPI_HEST_TYPE_AER_BRIDGE:
>> + if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE &&
>> + pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE)
>> + return false;
>> + break;
>> + default:
>> + return false;
>> + break;
>> + }
>> +
>> + if (common->flags & ACPI_HEST_GLOBAL)
>> + return true;
>> +
>> + if (hest_match_pci_devfn(common, dev))
>> + return true;
>> +
>> + return false;
>> +}
>> +
>> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
>> +{
>> + struct hest_parse_aer_info *info = data;
>> +
>> + if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev))
>> + return 0;
>> +
>> + switch (hest_hdr->type) {
>> + case ACPI_HEST_TYPE_AER_ROOT_PORT:
>> + info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr;
>> + return 1;
>> + break;
>> + case ACPI_HEST_TYPE_AER_ENDPOINT:
>> + info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr;
>> + return 1;
>> + break;
>> + case ACPI_HEST_TYPE_AER_BRIDGE:
>> + info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr;
>> + return 1;
>> + break;
>> + default:
>> + return 0;
>> + break;
>> + }
>> +}
>> +#endif
>>
>> -static int apei_hest_parse(apei_hest_func_t func, void *data)
>> +int apei_hest_parse(apei_hest_func_t func, void *data)
>> {
>> struct acpi_hest_header *hest_hdr;
>> int i, rc, len;
>> diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
>> index a33375e055ad..90c27dc5325f 100644
>> --- a/include/acpi/actbl1.h
>> +++ b/include/acpi/actbl1.h
>
> This is an ACPICA header and it cannot be modified just like this.
>
> The way to do that is to submit a pull request with the desired change
> to the upstream ACPICA project on GitHub and add a Link tag pointing
> to the upstream PR to the corresponding Linux patch. Then, the Linux
> patch can only be applied after the corresponding upstream PR has been
> merged.
>
> Thanks!
>
the data structure "hest_parse_aer_info" is added to file actbl1.h, it
is not necessary to put this data structure in file actbl1.h. In the
next version, I will move this data structure to another file.
Yours sincerely,
Leoliu-oc
>> @@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status {
>> u32 error_severity;
>> };
>>
>> +struct hest_parse_aer_info {
>> + struct pci_dev *pci_dev;
>> + struct acpi_hest_aer *hest_aer_endpoint;
>> + struct acpi_hest_aer_root *hest_aer_root_port;
>> + struct acpi_hest_aer_bridge *hest_aer_bridge;
>> +};
>> +
>> /* Values for block_status flags above */
>>
>> #define ACPI_HEST_UNCORRECTABLE (1)
>> diff --git a/include/acpi/apei.h b/include/acpi/apei.h
>> index dc60f7db5524..d12e6b6c4546 100644
>> --- a/include/acpi/apei.h
>> +++ b/include/acpi/apei.h
>> @@ -33,10 +33,18 @@ void __init acpi_ghes_init(void);
>> static inline void acpi_ghes_init(void) { }
>> #endif
>>
>> +typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
>> +int apei_hest_parse(apei_hest_func_t func, void *data);
>> +
>> #ifdef CONFIG_ACPI_APEI
>> void __init acpi_hest_init(void);
>> +int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data);
>> #else
>> static inline void acpi_hest_init(void) { }
>> +static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
>> +{
>> + return 0;
>> +}
>> #endif
>>
>> int erst_write(const struct cper_record_header *record);
>> --
>> 2.34.1
>>
@@ -22,6 +22,7 @@
#include <linux/kdebug.h>
#include <linux/highmem.h>
#include <linux/io.h>
+#include <linux/pci.h>
#include <linux/platform_device.h>
#include <acpi/apei.h>
#include <acpi/ghes.h>
@@ -86,9 +87,81 @@ static int hest_esrc_len(struct acpi_hest_header *hest_hdr)
return len;
};
-typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
+#ifdef CONFIG_ACPI_APEI
+static bool hest_match_pci_devfn(struct acpi_hest_aer_common *p,
+ struct pci_dev *dev)
+{
+ return ACPI_HEST_SEGMENT(p->bus) == pci_domain_nr(dev->bus) &&
+ ACPI_HEST_BUS(p->bus) == dev->bus->number &&
+ p->device == PCI_SLOT(dev->devfn) &&
+ p->function == PCI_FUNC(dev->devfn);
+}
+
+static bool hest_source_is_pcie_aer(struct acpi_hest_header *hest_hdr,
+ struct pci_dev *dev)
+{
+ u16 hest_type = hest_hdr->type;
+ u8 pcie_type = pci_pcie_type(dev);
+ struct acpi_hest_aer_common *common;
+
+ common = (struct acpi_hest_aer_common *)(hest_hdr + 1);
+
+ switch (hest_type) {
+ case ACPI_HEST_TYPE_AER_ROOT_PORT:
+ if (pcie_type != PCI_EXP_TYPE_ROOT_PORT)
+ return false;
+ break;
+ case ACPI_HEST_TYPE_AER_ENDPOINT:
+ if (pcie_type != PCI_EXP_TYPE_ENDPOINT)
+ return false;
+ break;
+ case ACPI_HEST_TYPE_AER_BRIDGE:
+ if (pcie_type != PCI_EXP_TYPE_PCI_BRIDGE &&
+ pcie_type != PCI_EXP_TYPE_PCIE_BRIDGE)
+ return false;
+ break;
+ default:
+ return false;
+ break;
+ }
+
+ if (common->flags & ACPI_HEST_GLOBAL)
+ return true;
+
+ if (hest_match_pci_devfn(common, dev))
+ return true;
+
+ return false;
+}
+
+int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
+{
+ struct hest_parse_aer_info *info = data;
+
+ if (!hest_source_is_pcie_aer(hest_hdr, info->pci_dev))
+ return 0;
+
+ switch (hest_hdr->type) {
+ case ACPI_HEST_TYPE_AER_ROOT_PORT:
+ info->hest_aer_root_port = (struct acpi_hest_aer_root *)hest_hdr;
+ return 1;
+ break;
+ case ACPI_HEST_TYPE_AER_ENDPOINT:
+ info->hest_aer_endpoint = (struct acpi_hest_aer *)hest_hdr;
+ return 1;
+ break;
+ case ACPI_HEST_TYPE_AER_BRIDGE:
+ info->hest_aer_bridge = (struct acpi_hest_aer_bridge *)hest_hdr;
+ return 1;
+ break;
+ default:
+ return 0;
+ break;
+ }
+}
+#endif
-static int apei_hest_parse(apei_hest_func_t func, void *data)
+int apei_hest_parse(apei_hest_func_t func, void *data)
{
struct acpi_hest_header *hest_hdr;
int i, rc, len;
@@ -1629,6 +1629,13 @@ struct acpi_hest_generic_status {
u32 error_severity;
};
+struct hest_parse_aer_info {
+ struct pci_dev *pci_dev;
+ struct acpi_hest_aer *hest_aer_endpoint;
+ struct acpi_hest_aer_root *hest_aer_root_port;
+ struct acpi_hest_aer_bridge *hest_aer_bridge;
+};
+
/* Values for block_status flags above */
#define ACPI_HEST_UNCORRECTABLE (1)
@@ -33,10 +33,18 @@ void __init acpi_ghes_init(void);
static inline void acpi_ghes_init(void) { }
#endif
+typedef int (*apei_hest_func_t)(struct acpi_hest_header *hest_hdr, void *data);
+int apei_hest_parse(apei_hest_func_t func, void *data);
+
#ifdef CONFIG_ACPI_APEI
void __init acpi_hest_init(void);
+int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data);
#else
static inline void acpi_hest_init(void) { }
+static inline int hest_parse_pcie_aer(struct acpi_hest_header *hest_hdr, void *data)
+{
+ return 0;
+}
#endif
int erst_write(const struct cper_record_header *record);