diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2023-07-14 17:18:18 +0200 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2023-07-18 06:55:27 +0000 |
| commit | b096d625d53cfc5bf2dbc38310427efa7521001d (patch) | |
| tree | 2a296d12b75b84392dbc791c85f4068a9d8545a1 /src/soc/intel | |
| parent | 971ea286dd2af2af0f8cc3f176d9f9d7ac95d3fe (diff) | |
soc/intel/xeon_sp: Introduce soc_cpu_is_enabled
Add a function to check if the CPU placed at the specified socket was
found usable during QPI init. This is useful for multi-socket
platforms were a CPU is missing or has been disabled due to an error.
Change-Id: I135968fcc905928b9bc6511e3ddbd7d12bad0096
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76556
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/xeon_sp/include/soc/util.h | 1 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/spr/soc_acpi.c | 2 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/util.c | 12 |
3 files changed, 14 insertions, 1 deletions
diff --git a/src/soc/intel/xeon_sp/include/soc/util.h b/src/soc/intel/xeon_sp/include/soc/util.h index a828ffce96..8e80c64d14 100644 --- a/src/soc/intel/xeon_sp/include/soc/util.h +++ b/src/soc/intel/xeon_sp/include/soc/util.h @@ -13,6 +13,7 @@ msr_t read_msr_ppin(void); int get_platform_thread_count(void); const IIO_UDS *get_iio_uds(void); unsigned int soc_get_num_cpus(void); +bool soc_cpu_is_enabled(const size_t idx); void set_bios_init_completion(void); uint8_t soc_get_iio_ioapicid(int socket, int stack); diff --git a/src/soc/intel/xeon_sp/spr/soc_acpi.c b/src/soc/intel/xeon_sp/spr/soc_acpi.c index 5340b7bd74..2e77de28f3 100644 --- a/src/soc/intel/xeon_sp/spr/soc_acpi.c +++ b/src/soc/intel/xeon_sp/spr/soc_acpi.c @@ -394,7 +394,7 @@ void uncore_inject_dsdt(const struct device *device) const STACK_RES *ri = &hob->PlatformData.IIO_resource[socket].StackRes[stack]; - stack_enabled = hob->PlatformData.IIO_resource[socket].Valid && + stack_enabled = soc_cpu_is_enabled(socket) && ri->Personality < TYPE_RESERVED; printk(BIOS_DEBUG, "%s processing socket: %d, stack: %d, type: %d\n", diff --git a/src/soc/intel/xeon_sp/util.c b/src/soc/intel/xeon_sp/util.c index e0bf9bc5a4..be30923ac7 100644 --- a/src/soc/intel/xeon_sp/util.c +++ b/src/soc/intel/xeon_sp/util.c @@ -118,6 +118,18 @@ void get_iiostack_info(struct iiostack_resource *info) } } +/* + * Returns true if the CPU in the specified socket was found + * during QPI init, false otherwise. + */ +bool soc_cpu_is_enabled(const size_t idx) +{ + const IIO_UDS *hob = get_iio_uds(); + assert(idx < CONFIG_MAX_SOCKET); + + return hob->PlatformData.IIO_resource[idx].Valid; +} + unsigned int soc_get_num_cpus(void) { /* The FSP IIO UDS HOB has field numCpus, it is actually socket count */ |