diff options
| author | Jonathan Zhang <jonzhang@fb.com> | 2020-06-03 15:55:28 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-06-14 16:45:55 +0000 |
| commit | c11059550342999c382385ef0059349802061a99 (patch) | |
| tree | c08618838d08a06ac63058f8e1e9ba24c0dcb955 | |
| parent | 890cf2299dd9f78c7ea66b7a27ebcbc1d06c0436 (diff) | |
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>
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/acpi.c | 35 | ||||
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/chip.c | 1 |
2 files changed, 36 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/acpi.c b/src/soc/intel/xeon_sp/cpx/acpi.c index 2ecb6aa5fc..085f9dde25 100644 --- a/src/soc/intel/xeon_sp/cpx/acpi.c +++ b/src/soc/intel/xeon_sp/cpx/acpi.c @@ -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) diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c index cded072ccd..c2d448c21c 100644 --- a/src/soc/intel/xeon_sp/cpx/chip.c +++ b/src/soc/intel/xeon_sp/cpx/chip.c @@ -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 */ |