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drm/i915/guc: Add a helper for log buffer size

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Add a helper to get GuC log buffer size.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220728022028.2190627-2-John.C.Harrison@Intel.com
This commit is contained in:
Alan Previn 2022-07-27 19:20:22 -07:00 committed by John Harrison
parent 6dc85721df
commit 5ce27d6210
1 changed files with 27 additions and 22 deletions
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49
drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
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@ -15,6 +15,32 @@
static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log);
static u32 intel_guc_log_size(struct intel_guc_log *log)
{
/*
* GuC Log buffer Layout:
*
* NB: Ordering must follow "enum guc_log_buffer_type".
*
* +===============================+ 00B
* | Debug state header |
* +-------------------------------+ 32B
* | Crash dump state header |
* +-------------------------------+ 64B
* | Capture state header |
* +-------------------------------+ 96B
* | |
* +===============================+ PAGE_SIZE (4KB)
* | Debug logs |
* +===============================+ + DEBUG_SIZE
* | Crash Dump logs |
* +===============================+ + CRASH_SIZE
* | Capture logs |
* +===============================+ + CAPTURE_SIZE
*/
return PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE + CAPTURE_BUFFER_SIZE;
}
/**
* DOC: GuC firmware log
*
@ -461,32 +487,11 @@ int intel_guc_log_create(struct intel_guc_log *log)
GEM_BUG_ON(log->vma);
/*
* GuC Log buffer Layout
* (this ordering must follow "enum guc_log_buffer_type" definition)
*
* +===============================+ 00B
* | Debug state header |
* +-------------------------------+ 32B
* | Crash dump state header |
* +-------------------------------+ 64B
* | Capture state header |
* +-------------------------------+ 96B
* | |
* +===============================+ PAGE_SIZE (4KB)
* | Debug logs |
* +===============================+ + DEBUG_SIZE
* | Crash Dump logs |
* +===============================+ + CRASH_SIZE
* | Capture logs |
* +===============================+ + CAPTURE_SIZE
*/
if (intel_guc_capture_output_min_size_est(guc) > CAPTURE_BUFFER_SIZE)
DRM_WARN("GuC log buffer for state_capture maybe too small. %d < %d\n",
CAPTURE_BUFFER_SIZE, intel_guc_capture_output_min_size_est(guc));
guc_log_size = PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE +
CAPTURE_BUFFER_SIZE;
guc_log_size = intel_guc_log_size(log);
vma = intel_guc_allocate_vma(guc, guc_log_size);
if (IS_ERR(vma)) {