diff options
| author | Koby Elbaz <kelbaz@habana.ai> | 2023-02-15 18:51:14 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2023-03-15 14:29:15 +0300 |
| commit | f7f0085eec8d3c0c353d2e7bfa7fb54b3b925d7a (patch) | |
| tree | 6a399008b1dffe2fc598db09fa692e0a2b82f788 /include/uapi/drm/habanalabs_accel.h | |
| parent | 28fbc058f2eec0e7e59cbeb5cce1d408d76c5965 (diff) | |
| download | linux-f7f0085eec8d3c0c353d2e7bfa7fb54b3b925d7a.tar.xz | |
accel/habanalabs: add uapi to stall/resume engine
The user might want to stall/resume engines to perform power testing
for various scenarios. Because our current
HL_CS_FLAGS_ENGINE_CORE_COMMAND command only handles the engines' cores,
we need to add another opcode for handling entire engine and not just
its core.
The user supplies an array, where each entry holds the engine's ID and
the command to send to the engine. The size of the array is limited
by the number of engines in the ASIC (only Gaudi2 is currently
supported).
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'include/uapi/drm/habanalabs_accel.h')
| -rw-r--r-- | include/uapi/drm/habanalabs_accel.h | 36 |
1 files changed, 31 insertions, 5 deletions
diff --git a/include/uapi/drm/habanalabs_accel.h b/include/uapi/drm/habanalabs_accel.h index 359b19ef3c3f..7ca0ef802fd1 100644 --- a/include/uapi/drm/habanalabs_accel.h +++ b/include/uapi/drm/habanalabs_accel.h @@ -1535,17 +1535,31 @@ struct hl_cs_chunk { */ #define HL_CS_FLAGS_FLUSH_PCI_HBW_WRITES 0x8000 +/* + * The engines CS is merged into the existing CS ioctls. + * Use it to control engines modes. + */ +#define HL_CS_FLAGS_ENGINES_COMMAND 0x10000 + #define HL_CS_STATUS_SUCCESS 0 #define HL_MAX_JOBS_PER_CS 512 -/* HL_ENGINE_CORE_ values +/* + * enum hl_engine_command - engine command * - * HL_ENGINE_CORE_HALT: engine core halt - * HL_ENGINE_CORE_RUN: engine core run + * @HL_ENGINE_CORE_HALT: engine core halt + * @HL_ENGINE_CORE_RUN: engine core run + * @HL_ENGINE_STALL: user engine/s stall + * @HL_ENGINE_RESUME: user engine/s resume */ -#define HL_ENGINE_CORE_HALT (1 << 0) -#define HL_ENGINE_CORE_RUN (1 << 1) +enum hl_engine_command { + HL_ENGINE_CORE_HALT = 1, + HL_ENGINE_CORE_RUN = 2, + HL_ENGINE_STALL = 3, + HL_ENGINE_RESUME = 4, + HL_ENGINE_COMMAND_MAX +}; struct hl_cs_in { @@ -1569,6 +1583,18 @@ struct hl_cs_in { /* the core command to be sent towards engine cores */ __u32 core_command; }; + + /* Valid only when HL_CS_FLAGS_ENGINES_COMMAND is set */ + struct { + /* this holds address of array of uint32 for engines */ + __u64 engines; + + /* number of engines in engines array */ + __u32 num_engines; + + /* the engine command to be sent towards engines */ + __u32 engine_command; + }; }; union { |