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soc/intel/xeon_sp/cpx: add cpu entries in ssdt 

Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com>
Change-Id: I4d057a7c385ca563bfcc7ad44f651ad1f8ca003c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42059
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
This commit is contained in:
Jonathan Zhang 2020-06-03 15:55:28 -07:00 committed by Patrick Georgi
parent 890cf2299d
commit c110595503
2 changed files with 36 additions and 0 deletions
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35
src/soc/intel/xeon_sp/cpx/acpi.c
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@ -230,6 +230,41 @@ unsigned long acpi_fill_madt(unsigned long current)
return acpi_madt_irq_overrides(current);
}
void generate_cpu_entries(const struct device *device)
{
int core_id, cpu_id, pcontrol_blk = ACPI_BASE_ADDRESS;
int plen = 6;
int total_threads = dev_count_cpu();
int threads_per_package = get_threads_per_package();
int numcpus = total_threads / threads_per_package;
printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each, totalcores: %d.\n",
numcpus, threads_per_package, total_threads);
for (cpu_id = 0; cpu_id < numcpus; cpu_id++) {
for (core_id = 0; core_id < threads_per_package; core_id++) {
if (core_id > 0) {
pcontrol_blk = 0;
plen = 0;
}
/* Generate processor \_PR.CPUx */
acpigen_write_processor((cpu_id) * threads_per_package +
core_id, pcontrol_blk, plen);
/* NOTE: Intel idle driver doesn't use ACPI C-state tables */
/* TODO: Soc specific power states generation */
acpigen_pop_len();
}
}
/* PPKG is usually used for thermal management of the first and only package. */
acpigen_write_processor_package("PPKG", 0, threads_per_package);
/* Add a method to notify processor nodes */
acpigen_write_processor_cnot(threads_per_package);
}
int soc_madt_sci_irq_polarity(int sci)
{
if (sci >= 20)

1
src/soc/intel/xeon_sp/cpx/chip.c
View File

@ -504,6 +504,7 @@ static struct device_operations cpu_bus_ops = {
.read_resources = noop_read_resources,
.set_resources = noop_set_resources,
.init = cpx_init_cpus,
.acpi_fill_ssdt = generate_cpu_entries,
};
/* Attach IIO stack bus numbers with dummy device to PCI DOMAIN 0000 device */