diff options
Diffstat (limited to 'src/soc/intel/xeon_sp/cpx/soc_util.c')
-rw-r--r-- | src/soc/intel/xeon_sp/cpx/soc_util.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/soc_util.c b/src/soc/intel/xeon_sp/cpx/soc_util.c new file mode 100644 index 0000000000..8548615239 --- /dev/null +++ b/src/soc/intel/xeon_sp/cpx/soc_util.c @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +#include <assert.h> +#include <soc/soc_util.h> +#include <stdlib.h> +#include <string.h> + +uint8_t get_iiostack_info(struct iiostack_resource *info) +{ + size_t hob_size; + const uint8_t fsp_hob_iio_universal_data_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID; + const IIO_UDS *hob; + + hob = fsp_find_extension_hob_by_guid( + fsp_hob_iio_universal_data_guid, &hob_size); + assert(hob != NULL && hob_size != 0); + + // copy IIO Stack info from FSP HOB + info->no_of_stacks = 0; + for (int s = 0; s < hob->PlatformData.numofIIO; ++s) { + for (int x = 0; x < MAX_IIO_STACK; ++x) { + const STACK_RES *ri = &hob->PlatformData.IIO_resource[s].StackRes[x]; + // TODO: do we have situation with only bux 0 and one stack? + if (ri->BusBase >= ri->BusLimit) + continue; + assert(info->no_of_stacks < (CONFIG_MAX_SOCKET * MAX_IIO_STACK)); + memcpy(&info->res[info->no_of_stacks++], ri, sizeof(STACK_RES)); + } + } + + return hob->PlatformData.Pci64BitResourceAllocation; +} |