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| author |   Vinay Belgaumkar <vinay.belgaumkar@intel.com> | 2021-07-30 13:21:14 -0700 |
|---|---|---|
| committer |   John Harrison <John.C.Harrison@Intel.com> | 2021-08-03 16:05:35 -0700 |
| commit | f1928ac2a18ffa0784783de09cc6fb5ca17c92f9 (patch) | |
| tree | afd4791d57a9983ab8e6b5dd4fb576b8ffe4bc1d /drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | |
| parent | drm/i915/guc/slpc: Add get max/min freq hooks (diff) | |
| download | linux-dev-f1928ac2a18ffa0784783de09cc6fb5ca17c92f9.tar.xz linux-dev-f1928ac2a18ffa0784783de09cc6fb5ca17c92f9.zip | |
drm/i915/guc/slpc: Add debugfs for SLPC info
This prints out relevant SLPC info from the SLPC shared structure.
We will send a H2G message which forces SLPC to update the
shared data structure with latest information before reading it.
v2: Address review comments (Michal W)
v3: Remove unnecessary tasks from slpc_info (Michal W)
v4: Rename function to intel_guc_slpc_print_info() (Michal W)
v5: checkpatch()
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Sundaresan Sujaritha <sujaritha.sundaresan@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210730202119.23810-10-vinay.belgaumkar@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c index 8bfd1880b2f5..4bf7c150330a 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -432,6 +432,35 @@ int intel_guc_slpc_enable(struct intel_guc_slpc *slpc) return 0; } +int intel_guc_slpc_print_info(struct intel_guc_slpc *slpc, struct drm_printer *p) +{ + struct drm_i915_private *i915 = slpc_to_i915(slpc); + struct slpc_shared_data *data = slpc->vaddr; + struct slpc_task_state_data *slpc_tasks; + intel_wakeref_t wakeref; + int ret = 0; + + GEM_BUG_ON(!slpc->vma); + + with_intel_runtime_pm(&i915->runtime_pm, wakeref) { + ret = slpc_query_task_state(slpc); + + if (!ret) { + slpc_tasks = &data->task_state_data; + + drm_printf(p, "\tSLPC state: %s\n", slpc_get_state_string(slpc)); + drm_printf(p, "\tGTPERF task active: %s\n", + yesno(slpc_tasks->status & SLPC_GTPERF_TASK_ENABLED)); + drm_printf(p, "\tMax freq: %u MHz\n", + slpc_decode_max_freq(slpc)); + drm_printf(p, "\tMin freq: %u MHz\n", + slpc_decode_min_freq(slpc)); + } + } + + return ret; +} + void intel_guc_slpc_fini(struct intel_guc_slpc *slpc) { if (!slpc->vma) |