diff options
| author | Muralidhara M K <muralidhara.mk@amd.com> | 2023-11-02 14:42:25 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-11-29 13:21:05 +0300 |
| commit | 12f230c07a95d925d6af754485952515e7975127 (patch) | |
| tree | d10657dc6780da1eaafc487c9b912123ed6d770b /drivers/edac/amd64_edac.h | |
| parent | 9a5f580c1c71b6aedba696c4898a7a7184cef8ad (diff) | |
| download | linux-12f230c07a95d925d6af754485952515e7975127.tar.xz | |
EDAC/amd64: Add support for family 0x19, models 0x90-9f devices
AMD Models 90h-9fh are APUs. They have built-in HBM3 memory. ECC support
is enabled by default.
APU models have a single Data Fabric (DF) per Package. Each DF is
visible to the OS in the same way as chiplet-based systems like Zen2
CPUs and later. However, the Unified Memory Controllers (UMCs) are
arranged in the same way as GPU-based MI200 devices rather than
CPU-based systems.
Use the existing gpu_ops for hetergeneous systems to support enumeration
of nodes and memory topology with few fixups.
[ bp: Massage comments. ]
Signed-off-by: Muralidhara M K <muralidhara.mk@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20231102114225.2006878-5-muralimk@amd.com
Diffstat (limited to 'drivers/edac/amd64_edac.h')
| -rw-r--r-- | drivers/edac/amd64_edac.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index 5a4e4a59682b..1665f7932bac 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -362,6 +362,7 @@ struct amd64_pvt { u32 dct_sel_lo; /* DRAM Controller Select Low */ u32 dct_sel_hi; /* DRAM Controller Select High */ u32 online_spare; /* On-Line spare Reg */ + u32 gpu_umc_base; /* Base address used for channel selection on GPUs */ /* x4, x8, or x16 syndromes in use */ u8 ecc_sym_sz; |