From: John Harrison <John.C.Harrison@xxxxxxxxx>
The GuC log buffer sizes had to be configured statically at compile
time. This can be quite troublesome when needing to get larger logs
out of a released driver. So re-organise the code to allow a boot time
module parameter override.
Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/uc/intel_guc.c | 53 ++----
.../gpu/drm/i915/gt/uc/intel_guc_capture.c | 14 +-
drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 176 +++++++++++++++++-
drivers/gpu/drm/i915/gt/uc/intel_guc_log.h | 42 +++--
drivers/gpu/drm/i915/i915_params.c | 12 ++
drivers/gpu/drm/i915/i915_params.h | 3 +
6 files changed, 226 insertions(+), 74 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index ab4aacc516aa4..01f2705cb94a3 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -224,53 +224,22 @@ static u32 guc_ctl_feature_flags(struct intel_guc *guc)
static u32 guc_ctl_log_params_flags(struct intel_guc *guc)
{
- u32 offset = intel_guc_ggtt_offset(guc, guc->log.vma) >> PAGE_SHIFT;
- u32 flags;
-
- #if (((CRASH_BUFFER_SIZE) % SZ_1M) == 0)
- #define LOG_UNIT SZ_1M
- #define LOG_FLAG GUC_LOG_LOG_ALLOC_UNITS
- #else
- #define LOG_UNIT SZ_4K
- #define LOG_FLAG 0
- #endif
-
- #if (((CAPTURE_BUFFER_SIZE) % SZ_1M) == 0)
- #define CAPTURE_UNIT SZ_1M
- #define CAPTURE_FLAG GUC_LOG_CAPTURE_ALLOC_UNITS
- #else
- #define CAPTURE_UNIT SZ_4K
- #define CAPTURE_FLAG 0
- #endif
-
- BUILD_BUG_ON(!CRASH_BUFFER_SIZE);
- BUILD_BUG_ON(!IS_ALIGNED(CRASH_BUFFER_SIZE, LOG_UNIT));
- BUILD_BUG_ON(!DEBUG_BUFFER_SIZE);
- BUILD_BUG_ON(!IS_ALIGNED(DEBUG_BUFFER_SIZE, LOG_UNIT));
- BUILD_BUG_ON(!CAPTURE_BUFFER_SIZE);
- BUILD_BUG_ON(!IS_ALIGNED(CAPTURE_BUFFER_SIZE, CAPTURE_UNIT));
-
- BUILD_BUG_ON((CRASH_BUFFER_SIZE / LOG_UNIT - 1) >
- (GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT));
- BUILD_BUG_ON((DEBUG_BUFFER_SIZE / LOG_UNIT - 1) >
- (GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT));
- BUILD_BUG_ON((CAPTURE_BUFFER_SIZE / CAPTURE_UNIT - 1) >
- (GUC_LOG_CAPTURE_MASK >> GUC_LOG_CAPTURE_SHIFT));
+ struct intel_guc_log *log = &guc->log;
+ u32 offset, flags;
+
+ GEM_BUG_ON(!log->sizes_initialised);
+
+ offset = intel_guc_ggtt_offset(guc, log->vma) >> PAGE_SHIFT;
flags = GUC_LOG_VALID |
GUC_LOG_NOTIFY_ON_HALF_FULL |
- CAPTURE_FLAG |
- LOG_FLAG |
- ((CRASH_BUFFER_SIZE / LOG_UNIT - 1) << GUC_LOG_CRASH_SHIFT) |
- ((DEBUG_BUFFER_SIZE / LOG_UNIT - 1) << GUC_LOG_DEBUG_SHIFT) |
- ((CAPTURE_BUFFER_SIZE / CAPTURE_UNIT - 1) << GUC_LOG_CAPTURE_SHIFT) |
+ log->sizes[GUC_LOG_SECTIONS_DEBUG].flag |
+ log->sizes[GUC_LOG_SECTIONS_CAPTURE].flag |
+ (log->sizes[GUC_LOG_SECTIONS_CRASH].count << GUC_LOG_CRASH_SHIFT) |
+ (log->sizes[GUC_LOG_SECTIONS_DEBUG].count << GUC_LOG_DEBUG_SHIFT) |
+ (log->sizes[GUC_LOG_SECTIONS_CAPTURE].count << GUC_LOG_CAPTURE_SHIFT) |
(offset << GUC_LOG_BUF_ADDR_SHIFT);
- #undef LOG_UNIT
- #undef LOG_FLAG
- #undef CAPTURE_UNIT
- #undef CAPTURE_FLAG
-
return flags;
}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
index b54b7883320b1..d2ac53d4f3b6e 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
@@ -656,16 +656,17 @@ static void check_guc_capture_size(struct intel_guc *guc)
struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
int min_size = guc_capture_output_min_size_est(guc);
int spare_size = min_size * GUC_CAPTURE_OVERBUFFER_MULTIPLIER;
+ u32 buffer_size = intel_guc_log_section_size_capture(&guc->log);
if (min_size < 0)
drm_warn(&i915->drm, "Failed to calculate GuC error state capture buffer minimum size: %d!\n",
min_size);
- else if (min_size > CAPTURE_BUFFER_SIZE)
+ else if (min_size > buffer_size)
drm_warn(&i915->drm, "GuC error state capture buffer is too small: %d < %d\n",
- CAPTURE_BUFFER_SIZE, min_size);
- else if (spare_size > CAPTURE_BUFFER_SIZE)
+ buffer_size, min_size);
+ else if (spare_size > buffer_size)
drm_notice(&i915->drm, "GuC error state capture buffer maybe too small: %d < %d (min = %d)\n",
- CAPTURE_BUFFER_SIZE, spare_size, min_size);
+ buffer_size, spare_size, min_size);
}
/*
@@ -1294,7 +1295,8 @@ static void __guc_capture_process_output(struct intel_guc *guc)
log_buf_state = guc->log.buf_addr +
(sizeof(struct guc_log_buffer_state) * GUC_CAPTURE_LOG_BUFFER);
- src_data = guc->log.buf_addr + intel_guc_get_log_buffer_offset(GUC_CAPTURE_LOG_BUFFER);
+ src_data = guc->log.buf_addr +
+ intel_guc_get_log_buffer_offset(&guc->log, GUC_CAPTURE_LOG_BUFFER);
/*
* Make a copy of the state structure, inside GuC log buffer
@@ -1302,7 +1304,7 @@ static void __guc_capture_process_output(struct intel_guc *guc)
* from it multiple times.
*/
memcpy(&log_buf_state_local, log_buf_state, sizeof(struct guc_log_buffer_state));
- buffer_size = intel_guc_get_log_buffer_size(GUC_CAPTURE_LOG_BUFFER);
+ buffer_size = intel_guc_get_log_buffer_size(&guc->log, GUC_CAPTURE_LOG_BUFFER);
read_offset = log_buf_state_local.read_ptr;
write_offset = log_buf_state_local.sampled_write_ptr;
full_count = log_buf_state_local.buffer_full_cnt;
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 4722d4b18ed19..890b6853bd609 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c
@@ -13,8 +13,158 @@
#include "intel_guc_capture.h"
#include "intel_guc_log.h"
+#if defined(CONFIG_DRM_I915_DEBUG_GUC)
+#define GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE SZ_2M
+#define GUC_LOG_DEFAULT_DEBUG_BUFFER_SIZE SZ_16M
+#define GUC_LOG_DEFAULT_CAPTURE_BUFFER_SIZE SZ_4M
+#elif defined(CONFIG_DRM_I915_DEBUG_GEM)
+#define GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE SZ_1M
+#define GUC_LOG_DEFAULT_DEBUG_BUFFER_SIZE SZ_2M
+#define GUC_LOG_DEFAULT_CAPTURE_BUFFER_SIZE SZ_4M
+#else
+#define GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE SZ_8K
+#define GUC_LOG_DEFAULT_DEBUG_BUFFER_SIZE SZ_64K
+#define GUC_LOG_DEFAULT_CAPTURE_BUFFER_SIZE SZ_2M
+#endif
+
static void guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log);
+struct guc_log_section {
+ u32 max;
+ u32 flag;
+ u32 default_val;
+ 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);
+ struct drm_i915_private *i915 = guc_to_gt(guc)->i915;
+ static const struct guc_log_section sections[GUC_LOG_SECTIONS_LIMIT] = {
+ {
+ GUC_LOG_CRASH_MASK >> GUC_LOG_CRASH_SHIFT,
+ GUC_LOG_LOG_ALLOC_UNITS,
+ GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE,
+ "crash dump"
+ },
+ {
+ GUC_LOG_DEBUG_MASK >> GUC_LOG_DEBUG_SHIFT,
+ GUC_LOG_LOG_ALLOC_UNITS,
+ GUC_LOG_DEFAULT_DEBUG_BUFFER_SIZE,
+ "debug",
+ },
+ {
+ GUC_LOG_CAPTURE_MASK >> GUC_LOG_CAPTURE_SHIFT,
+ GUC_LOG_CAPTURE_ALLOC_UNITS,
+ GUC_LOG_DEFAULT_CAPTURE_BUFFER_SIZE,
+ "capture",
+ }
+ };
+ s32 params[GUC_LOG_SECTIONS_LIMIT] = {
+ i915->params.guc_log_size_crash,
+ i915->params.guc_log_size_debug,
+ i915->params.guc_log_size_capture,
+ };
+ int i;
+
+ for (i = 0; i < GUC_LOG_SECTIONS_LIMIT; i++)
+ log->sizes[i].bytes = scale_log_param(log, sections + i, params[i]);
+
+ /* If debug size > 1MB then bump default crash size to keep the same units */
+ if (log->sizes[GUC_LOG_SECTIONS_DEBUG].bytes >= SZ_1M &&
+ (i915->params.guc_log_size_crash == -1) &&
+ GUC_LOG_DEFAULT_CRASH_BUFFER_SIZE < SZ_1M)
+ log->sizes[GUC_LOG_SECTIONS_CRASH].bytes = SZ_1M;
+
+ /* Prepare the GuC API structure fields: */
+ for (i = 0; i < GUC_LOG_SECTIONS_LIMIT; i++) {
+ /* Convert to correct units */
+ if ((log->sizes[i].bytes % SZ_1M) == 0) {
+ log->sizes[i].units = SZ_1M;
+ log->sizes[i].flag = sections[i].flag;
+ } else {
+ log->sizes[i].units = SZ_4K;
+ log->sizes[i].flag = 0;
+ }
+
+ if (!IS_ALIGNED(log->sizes[i].bytes, log->sizes[i].units))
+ drm_err(&i915->drm, "Mis-aligned GuC log %s size: 0x%X vs 0x%X!",
+ sections[i].name, log->sizes[i].bytes, log->sizes[i].units);
+ log->sizes[i].count = log->sizes[i].bytes / log->sizes[i].units;
+
+ if (!log->sizes[i].count) {
+ drm_err(&i915->drm, "Zero GuC log %s size!", sections[i].name);
+ } else {
+ /* Size is +1 unit */
+ log->sizes[i].count--;
+ }
+
+ /* Clip to field size */
+ if (log->sizes[i].count > sections[i].max) {
+ drm_err(&i915->drm, "GuC log %s size too large: %d vs %d!",
+ sections[i].name, log->sizes[i].count + 1, sections[i].max + 1);
+ log->sizes[i].count = sections[i].max;
+ }
+ }
+
+ if (log->sizes[GUC_LOG_SECTIONS_CRASH].units != log->sizes[GUC_LOG_SECTIONS_DEBUG].units) {
+ drm_err(&i915->drm, "Unit mis-match for GuC log crash and debug sections: %d vs %d!",
+ log->sizes[GUC_LOG_SECTIONS_CRASH].units,
+ log->sizes[GUC_LOG_SECTIONS_DEBUG].units);
+ log->sizes[GUC_LOG_SECTIONS_CRASH].units = log->sizes[GUC_LOG_SECTIONS_DEBUG].units;
+ log->sizes[GUC_LOG_SECTIONS_CRASH].count = 0;
+ }
+
+ log->sizes_initialised = true;
+}
+
+static void guc_log_init_sizes(struct intel_guc_log *log)
+{
+ if (log->sizes_initialised)
+ return;
+
+ _guc_log_init_sizes(log);
+}
+
+static u32 intel_guc_log_section_size_crash(struct intel_guc_log *log)
+{
+ guc_log_init_sizes(log);
+
+ return log->sizes[GUC_LOG_SECTIONS_CRASH].bytes;
+}
+
+static u32 intel_guc_log_section_size_debug(struct intel_guc_log *log)
+{
+ guc_log_init_sizes(log);
+
+ return log->sizes[GUC_LOG_SECTIONS_DEBUG].bytes;
+}
+
+u32 intel_guc_log_section_size_capture(struct intel_guc_log *log)
+{
+ guc_log_init_sizes(log);
+
+ return log->sizes[GUC_LOG_SECTIONS_CAPTURE].bytes;
+}
+
static u32 intel_guc_log_size(struct intel_guc_log *log)
{
/*
@@ -38,7 +188,10 @@ static u32 intel_guc_log_size(struct intel_guc_log *log)
* | Capture logs |
* +===============================+ + CAPTURE_SIZE
*/
- return PAGE_SIZE + CRASH_BUFFER_SIZE + DEBUG_BUFFER_SIZE + CAPTURE_BUFFER_SIZE;
+ return PAGE_SIZE +
+ intel_guc_log_section_size_crash(log) +
+ intel_guc_log_section_size_debug(log) +
+ intel_guc_log_section_size_capture(log);
}
/**
@@ -165,7 +318,8 @@ static void guc_move_to_next_buf(struct intel_guc_log *log)
smp_wmb();
/* All data has been written, so now move the offset of sub buffer. */
- relay_reserve(log->relay.channel, log->vma->obj->base.size - CAPTURE_BUFFER_SIZE);
+ relay_reserve(log->relay.channel, log->vma->obj->base.size -
+ intel_guc_log_section_size_capture(log));
/* Switch to the next sub buffer */
relay_flush(log->relay.channel);
@@ -210,15 +364,16 @@ bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log,
return overflow;
}
-unsigned int intel_guc_get_log_buffer_size(enum guc_log_buffer_type type)
+unsigned int intel_guc_get_log_buffer_size(struct intel_guc_log *log,
+ enum guc_log_buffer_type type)
{
switch (type) {
case GUC_DEBUG_LOG_BUFFER:
- return DEBUG_BUFFER_SIZE;
+ return intel_guc_log_section_size_debug(log);
case GUC_CRASH_DUMP_LOG_BUFFER:
- return CRASH_BUFFER_SIZE;
+ return intel_guc_log_section_size_crash(log);
case GUC_CAPTURE_LOG_BUFFER:
- return CAPTURE_BUFFER_SIZE;
+ return intel_guc_log_section_size_capture(log);
default:
MISSING_CASE(type);
}
@@ -226,7 +381,8 @@ unsigned int intel_guc_get_log_buffer_size(enum guc_log_buffer_type type)
return 0;
}
-size_t intel_guc_get_log_buffer_offset(enum guc_log_buffer_type type)
+size_t intel_guc_get_log_buffer_offset(struct intel_guc_log *log,
+ enum guc_log_buffer_type type)
{
enum guc_log_buffer_type i;
size_t offset = PAGE_SIZE;/* for the log_buffer_states */
@@ -234,7 +390,7 @@ size_t intel_guc_get_log_buffer_offset(enum guc_log_buffer_type type)
for (i = GUC_DEBUG_LOG_BUFFER; i < GUC_MAX_LOG_BUFFER; ++i) {
if (i == type)
break;
- offset += intel_guc_get_log_buffer_size(i);
+ offset += intel_guc_get_log_buffer_size(log, i);
}
return offset;
@@ -285,7 +441,7 @@ static void _guc_log_copy_debuglogs_for_relay(struct intel_guc_log *log)
*/
memcpy(&log_buf_state_local, log_buf_state,
sizeof(struct guc_log_buffer_state));
- buffer_size = intel_guc_get_log_buffer_size(type);
+ buffer_size = intel_guc_get_log_buffer_size(log, type);
read_offset = log_buf_state_local.read_ptr;
write_offset = log_buf_state_local.sampled_write_ptr;
full_cnt = log_buf_state_local.buffer_full_cnt;
@@ -400,7 +556,7 @@ static int guc_log_relay_create(struct intel_guc_log *log)
* Keep the size of sub buffers same as shared log buffer
* but GuC log-events excludes the error-state-capture logs
*/
- subbuf_size = log->vma->size - CAPTURE_BUFFER_SIZE;
+ subbuf_size = log->vma->size - intel_guc_log_section_size_capture(log);
/*
* Store up to 8 snapshots, which is large enough to buffer sufficient
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
index dc9715411d626..02127703be809 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.h
@@ -15,20 +15,6 @@
struct intel_guc;
-#if defined(CONFIG_DRM_I915_DEBUG_GUC)
-#define CRASH_BUFFER_SIZE SZ_2M
-#define DEBUG_BUFFER_SIZE SZ_16M
-#define CAPTURE_BUFFER_SIZE SZ_4M
-#elif defined(CONFIG_DRM_I915_DEBUG_GEM)
-#define CRASH_BUFFER_SIZE SZ_1M
-#define DEBUG_BUFFER_SIZE SZ_2M
-#define CAPTURE_BUFFER_SIZE SZ_4M
-#else
-#define CRASH_BUFFER_SIZE SZ_8K
-#define DEBUG_BUFFER_SIZE SZ_64K
-#define CAPTURE_BUFFER_SIZE SZ_2M
-#endif
-
/*
* While we're using plain log level in i915, GuC controls are much more...
* "elaborate"? We have a couple of bits for verbosity, separate bit for actual
@@ -46,10 +32,30 @@ struct intel_guc;
#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
#define GUC_LOG_LEVEL_MAX GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)
+enum {
+ GUC_LOG_SECTIONS_CRASH,
+ GUC_LOG_SECTIONS_DEBUG,
+ GUC_LOG_SECTIONS_CAPTURE,
+ GUC_LOG_SECTIONS_LIMIT
+};
+
struct intel_guc_log {
u32 level;
+
+ /* Allocation settings */
+ struct {
+ s32 bytes; /* Size in bytes */
+ s32 units; /* GuC API units - 1MB or 4KB */
+ s32 count; /* Number of API units */
+ u32 flag; /* GuC API units flag */
+ } sizes[GUC_LOG_SECTIONS_LIMIT];
+ bool sizes_initialised;
+
+ /* Combined buffer allocation */
struct i915_vma *vma;
void *buf_addr;
+
+ /* RelayFS support */
struct {
bool buf_in_use;
bool started;
@@ -58,6 +64,7 @@ struct intel_guc_log {
struct mutex lock;
u32 full_count;
} relay;
+
/* logging related stats */
struct {
u32 sampled_overflow;
@@ -69,8 +76,9 @@ struct intel_guc_log {
void intel_guc_log_init_early(struct intel_guc_log *log);
bool intel_guc_check_log_buf_overflow(struct intel_guc_log *log, enum guc_log_buffer_type type,
unsigned int full_cnt);
-unsigned int intel_guc_get_log_buffer_size(enum guc_log_buffer_type type);
-size_t intel_guc_get_log_buffer_offset(enum guc_log_buffer_type type);
+unsigned int intel_guc_get_log_buffer_size(struct intel_guc_log *log,
+ enum guc_log_buffer_type type);
+size_t intel_guc_get_log_buffer_offset(struct intel_guc_log *log, enum guc_log_buffer_type type);
int intel_guc_log_create(struct intel_guc_log *log);
void intel_guc_log_destroy(struct intel_guc_log *log);
@@ -92,4 +100,6 @@ void intel_guc_log_info(struct intel_guc_log *log, struct drm_printer *p);
int intel_guc_log_dump(struct intel_guc_log *log, struct drm_printer *p,
bool dump_load_err);
+u32 intel_guc_log_section_size_capture(struct intel_guc_log *log);
+
#endif
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 6fc475a5db615..06ca5b8221118 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -171,6 +171,18 @@ i915_param_named(guc_log_level, int, 0400,
"GuC firmware logging level. Requires GuC to be loaded. "
"(-1=auto [default], 0=disable, 1..4=enable with verbosity min..max)");
+i915_param_named(guc_log_size_crash, int, 0400,
+ "GuC firmware logging buffer size for crash dumps (in MB)"
+ "(-1=auto [default], NB: max = 4, other restrictions apply)");
+
+i915_param_named(guc_log_size_debug, int, 0400,
+ "GuC firmware logging buffer size for debug logs (in MB)"
+ "(-1=auto [default], NB: max = 16, other restrictions apply)");
+
+i915_param_named(guc_log_size_capture, int, 0400,
+ "GuC error capture register dump buffer size (in MB)"
+ "(-1=auto [default], NB: max = 4, other restrictions apply)");
+
i915_param_named_unsafe(guc_firmware_path, charp, 0400,
"GuC firmware path to use instead of the default one");
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 2733cb6cfe094..f684d1ab87078 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -61,6 +61,9 @@ struct drm_printer;
param(int, invert_brightness, 0, 0600) \
param(int, enable_guc, -1, 0400) \
param(int, guc_log_level, -1, 0400) \
+ param(int, guc_log_size_crash, -1, 0400) \
+ param(int, guc_log_size_debug, -1, 0400) \
+ param(int, guc_log_size_capture, -1, 0400) \
param(char *, guc_firmware_path, NULL, 0400) \
param(char *, huc_firmware_path, NULL, 0400) \
param(char *, dmc_firmware_path, NULL, 0400) \
--
2.37.1
