On 9/12/2022 6:09 PM, John.C.Harrison@xxxxxxxxx wrote:
From: John Harrison <John.C.Harrison@xxxxxxxxx>
A patch was merged to remove the GuC log size override module
parameters. That patch was broken and caused kernel error messages on
boot in non CONFIG_DEBUG_GUC|GEM builds:
[ 12.085121] i915 0000:00:02.0: [drm] *ERROR* Zero GuC log crash dump size!
[ 12.092035] i915 0000:00:02.0: [drm] *ERROR* Zero GuC log debug size!
So fit it.
Fixes: f54e515c9180 ("drm/i915/guc: Remove log size module parameters")
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx>
Cc: Alan Previn <alan.previn.teres.alexis@xxxxxxxxx>
Cc: Jani Nikula <jani.nikula@xxxxxxxxx>
Cc: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
Cc: Matthew Brost <matthew.brost@xxxxxxxxx>
Cc: Julia Lawall <Julia.Lawall@xxxxxxxx>
Cc: Chris Wilson <chris.p.wilson@xxxxxxxxx>
Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 25 +---------------------
1 file changed, 1 insertion(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
index b071973ac41c1..55d3ef93e86f8 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -36,24 +36,6 @@ struct guc_log_section {
const char *name;
};
-static s32 scale_log_param(struct intel_guc_log *log, const struct guc_log_section *section,
- s32 param)
-{
- /* -1 means default */
- if (param < 0)
- return section->default_val;
-
- /* Check for 32-bit overflow */
- if (param >= SZ_4K) {
- drm_err(&guc_to_gt(log_to_guc(log))->i915->drm, "Size too large for GuC %s log: %dMB!",
- section->name, param);
- return section->default_val;
- }
-
- /* Param units are 1MB */
- return param * SZ_1M;
-}
-
static void _guc_log_init_sizes(struct intel_guc_log *log)
{
struct intel_guc *guc = log_to_guc(log);
@@ -78,15 +60,10 @@ static void _guc_log_init_sizes(struct intel_guc_log *log)
"capture",
}
};
- s32 params[GUC_LOG_SECTIONS_LIMIT] = {
- GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE / SZ_1M,
- GUC_LOG_DEFAULT_DEBUG_BUFFER_SIZE / SZ_1M,
- GUC_LOG_DEFAULT_CAPTURE_BUFFER_SIZE / SZ_1M,
- };
int i;
for (i = 0; i < GUC_LOG_SECTIONS_LIMIT; i++)
- log->sizes[i].bytes = scale_log_param(log, sections + i, params[i]);
+ log->sizes[i].bytes = sections[i].default_val;
/* If debug size > 1MB then bump default crash size to keep the same units */
if (log->sizes[GUC_LOG_SECTIONS_DEBUG].bytes >= SZ_1M &&
If the user can't tweak the values anymore then we can guarantee that
the sizes use the same units and change this if to a BUILD_BUG_ON() to
check that.
Not a blocker for the fix.
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@xxxxxxxxx>
Daniele
