src/soc/amd/stoneyridge/mca.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <amdblocks/mca.h>
   4 #include <cpu/x86/msr.h>
   5 #include <types.h>
   6
   7 static const char *const mca_bank_name[] = {
   8         [0] = "Load-store unit",
   9         [1] = "Instruction fetch unit",
  10         [2] = "Combined unit",
  11         /* Bank 3 is reserved and not all corresponding MSRs are implemented in Family 15h.
  12            Accessing non-existing MSRs causes a general protection fault. */
  13         [3] = NULL,
  14         [4] = "Northbridge",
  15         [5] = "Execution unit",
  16         [6] = "Floating point unit"
  17 };
  18
  19 bool mca_has_expected_bank_count(void)
  20 {
  21         return ARRAY_SIZE(mca_bank_name) == mca_get_bank_count();
  22 }
  23
  24 bool mca_is_valid_bank(unsigned int bank)
  25 {
  26         return (bank < ARRAY_SIZE(mca_bank_name) && mca_bank_name[bank] != NULL);
  27 }
  28
  29 const char *mca_get_bank_name(unsigned int bank)
  30 {
  31         if (mca_is_valid_bank(bank))
  32                 return mca_bank_name[bank];
  33         else
  34                 return "";
  35 }