diff options
Diffstat (limited to 'drivers/ras/amd/atl/system.c')
| -rw-r--r-- | drivers/ras/amd/atl/system.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/ras/amd/atl/system.c b/drivers/ras/amd/atl/system.c index 6979fa3d4fe2..e18d916d5e8b 100644 --- a/drivers/ras/amd/atl/system.c +++ b/drivers/ras/amd/atl/system.c @@ -223,6 +223,21 @@ static int determine_df_rev(void) return -EINVAL; } +static int get_dram_hole_base(void) +{ + u8 func = 0; + + if (df_cfg.rev >= DF4) + func = 7; + + if (df_indirect_read_broadcast(0, func, 0x104, &df_cfg.dram_hole_base)) + return -EINVAL; + + df_cfg.dram_hole_base &= DF_DRAM_HOLE_BASE_MASK; + + return 0; +} + static void get_num_maps(void) { switch (df_cfg.rev) { @@ -266,6 +281,7 @@ static void dump_df_cfg(void) pr_debug("num_coh_st_maps=%u", df_cfg.num_coh_st_maps); + pr_debug("dram_hole_base=0x%x", df_cfg.dram_hole_base); pr_debug("flags.legacy_ficaa=%u", df_cfg.flags.legacy_ficaa); pr_debug("flags.socket_id_shift_quirk=%u", df_cfg.flags.socket_id_shift_quirk); } @@ -273,7 +289,7 @@ static void dump_df_cfg(void) int get_df_system_info(void) { if (determine_df_rev()) { - pr_warn("amd_atl: Failed to determine DF Revision"); + pr_warn("Failed to determine DF Revision"); df_cfg.rev = UNKNOWN; return -EINVAL; } @@ -282,6 +298,9 @@ int get_df_system_info(void) get_num_maps(); + if (get_dram_hole_base()) + pr_warn("Failed to read DRAM hole base"); + dump_df_cfg(); return 0; |