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| author | Matt Roper <matthew.d.roper@intel.com> | 2023-10-16 19:34:55 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:43:00 +0300 |
| commit | 0f60547f7d2c3db16b151540e6697c7d90a9f93b (patch) | |
| tree | 2cd1b04e0b3a66071c0c50c433a498f1651f41b1 /drivers/gpu/drm/xe/instructions | |
| parent | 0134f130e76ad6e323e15ccb00624586c8763075 (diff) | |
| download | linux-0f60547f7d2c3db16b151540e6697c7d90a9f93b.tar.xz | |
drm/xe/debugfs: Add dump of default LRCs' MI instructions
For non-RCS engines, nearly all of the LRC state is composed of MI
instructions (specifically MI_LOAD_REGISTER_IMM). Providing a dump
interface allows us to verify that the context image layout matches
what's documented in the bspec, and also allows us to check whether LRC
workarounds are being properly captured by the default state we record
at startup.
For now, the non-MI instructions found in the RCS and CCS engines will
dump as "unknown;" parsing of those will be added in a follow-up patch.
v2:
- Add raw instruction header as well as decoded meaning. (Lucas)
- Check that num_dw isn't greater than remaining_dw for instructions
that have a "# dwords" field. (Lucas)
- Clarify comment about skipping over ppHWSP. (Lucas)
Bspec: 64993
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20231016163449.1300701-13-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/instructions')
| -rw-r--r-- | drivers/gpu/drm/xe/instructions/xe_instr_defs.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/instructions/xe_mi_commands.h | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/instructions/xe_instr_defs.h b/drivers/gpu/drm/xe/instructions/xe_instr_defs.h index a7ec46395786..e403b4fcc20a 100644 --- a/drivers/gpu/drm/xe/instructions/xe_instr_defs.h +++ b/drivers/gpu/drm/xe/instructions/xe_instr_defs.h @@ -15,6 +15,7 @@ */ #define XE_INSTR_CMD_TYPE GENMASK(31, 29) #define XE_INSTR_MI REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x0) +#define XE_INSTR_GFXPIPE REG_FIELD_PREP(XE_INSTR_CMD_TYPE, 0x3) /* * Most (but not all) instructions have a "length" field in the instruction diff --git a/drivers/gpu/drm/xe/instructions/xe_mi_commands.h b/drivers/gpu/drm/xe/instructions/xe_mi_commands.h index 753ebf1efa78..1cfa96167fde 100644 --- a/drivers/gpu/drm/xe/instructions/xe_mi_commands.h +++ b/drivers/gpu/drm/xe/instructions/xe_mi_commands.h @@ -30,6 +30,9 @@ #define MI_ARB_DISABLE 0x0 #define MI_BATCH_BUFFER_END __MI_INSTR(0xA) +#define MI_TOPOLOGY_FILTER __MI_INSTR(0xD) +#define MI_FORCE_WAKEUP __MI_INSTR(0x1D) + #define MI_STORE_DATA_IMM __MI_INSTR(0x20) #define MI_SDI_GGTT REG_BIT(22) #define MI_SDI_LEN_DW GENMASK(9, 0) |