[PATCH v2 3/3] drm/i915/guc: Improve GuC loading status check/error reports
John.C.Harrison at Intel.com
John.C.Harrison at Intel.com
Fri Jan 7 00:06:22 UTC 2022
From: John Harrison <John.C.Harrison at Intel.com>
If the GuC fails to load, it is useful to know what firmware file /
version was attempted. So move the version info report to before the
load attempt rather than only after a successful load.
If the GuC does fail to load, then make the error messages visible
rather than being 'debug' prints that do not appears in dmesg output
by default.
When waiting for the GuC to load, it used to be necessary to check for
two different states - READY and (LAPIC_DONE | MIA_CORE). Apparently
the second signified init complete on RC6 exit. However, in more
recent GuC versions the RC6 exit sequence now finishes with status
READY as well. So the test can be simplified.
Also, add an enum giving all the current status codes that GuC loading
can report as a reference without having to pull and search through
the GuC source files.
Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
Reviewed-by: Matthew Brost <matthew.brost at intel.com>
---
.../gpu/drm/i915/gt/uc/abi/guc_errors_abi.h | 23 ++++++++++++++
drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c | 17 +++++-----
drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h | 4 ---
drivers/gpu/drm/i915/gt/uc/intel_huc.c | 1 +
drivers/gpu/drm/i915/gt/uc/intel_uc.c | 31 ++++++++++---------
5 files changed, 48 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h
index 488b6061ee89..c20658ee85a5 100644
--- a/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h
+++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_errors_abi.h
@@ -11,4 +11,27 @@ enum intel_guc_response_status {
INTEL_GUC_RESPONSE_STATUS_GENERIC_FAIL = 0xF000,
};
+enum intel_guc_load_status {
+ INTEL_GUC_LOAD_STATUS_DEFAULT = 0x00,
+ INTEL_GUC_LOAD_STATUS_START = 0x01,
+ INTEL_GUC_LOAD_STATUS_ERROR_DEVID_BUILD_MISMATCH = 0x02,
+ INTEL_GUC_LOAD_STATUS_GUC_PREPROD_BUILD_MISMATCH = 0x03,
+ INTEL_GUC_LOAD_STATUS_ERROR_DEVID_INVALID_GUCTYPE = 0x04,
+ INTEL_GUC_LOAD_STATUS_GDT_DONE = 0x10,
+ INTEL_GUC_LOAD_STATUS_IDT_DONE = 0x20,
+ INTEL_GUC_LOAD_STATUS_LAPIC_DONE = 0x30,
+ INTEL_GUC_LOAD_STATUS_GUCINT_DONE = 0x40,
+ INTEL_GUC_LOAD_STATUS_DPC_READY = 0x50,
+ INTEL_GUC_LOAD_STATUS_DPC_ERROR = 0x60,
+ INTEL_GUC_LOAD_STATUS_EXCEPTION = 0x70,
+ INTEL_GUC_LOAD_STATUS_INIT_DATA_INVALID = 0x71,
+ INTEL_GUC_LOAD_STATUS_PXP_TEARDOWN_CTRL_ENABLED = 0x72,
+ INTEL_GUC_LOAD_STATUS_INVALID_INIT_DATA_RANGE_START,
+ INTEL_GUC_LOAD_STATUS_MPU_DATA_INVALID = 0x73,
+ INTEL_GUC_LOAD_STATUS_INIT_MMIO_SAVE_RESTORE_INVALID = 0x74,
+ INTEL_GUC_LOAD_STATUS_INVALID_INIT_DATA_RANGE_END,
+
+ INTEL_GUC_LOAD_STATUS_READY = 0xF0,
+};
+
#endif /* _ABI_GUC_ERRORS_ABI_H */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c
index d09c205b2beb..f773e7f35bc1 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_fw.c
@@ -90,11 +90,10 @@ static int guc_xfer_rsa(struct intel_uc_fw *guc_fw,
static inline bool guc_ready(struct intel_uncore *uncore, u32 *status)
{
u32 val = intel_uncore_read(uncore, GUC_STATUS);
- u32 uk_val = val & GS_UKERNEL_MASK;
+ u32 uk_val = REG_FIELD_GET(GS_UKERNEL_MASK, val);
*status = val;
- return (uk_val == GS_UKERNEL_READY) ||
- ((val & GS_MIA_CORE_STATE) && (uk_val == GS_UKERNEL_LAPIC_DONE));
+ return uk_val == INTEL_GUC_LOAD_STATUS_READY;
}
static int guc_wait_ucode(struct intel_uncore *uncore)
@@ -123,8 +122,8 @@ static int guc_wait_ucode(struct intel_uncore *uncore)
if (ret) {
struct drm_device *drm = &uncore->i915->drm;
- drm_dbg(drm, "GuC load failed: status = 0x%08X\n", status);
- drm_dbg(drm, "GuC load failed: status: Reset = %d, "
+ drm_info(drm, "GuC load failed: status = 0x%08X\n", status);
+ drm_info(drm, "GuC load failed: status: Reset = %d, "
"BootROM = 0x%02X, UKernel = 0x%02X, "
"MIA = 0x%02X, Auth = 0x%02X\n",
REG_FIELD_GET(GS_MIA_IN_RESET, status),
@@ -134,13 +133,13 @@ static int guc_wait_ucode(struct intel_uncore *uncore)
REG_FIELD_GET(GS_AUTH_STATUS_MASK, status));
if ((status & GS_BOOTROM_MASK) == GS_BOOTROM_RSA_FAILED) {
- drm_dbg(drm, "GuC firmware signature verification failed\n");
+ drm_info(drm, "GuC firmware signature verification failed\n");
ret = -ENOEXEC;
}
- if ((status & GS_UKERNEL_MASK) == GS_UKERNEL_EXCEPTION) {
- drm_dbg(drm, "GuC firmware exception. EIP: %#x\n",
- intel_uncore_read(uncore, SOFT_SCRATCH(13)));
+ if (REG_FIELD_GET(GS_UKERNEL_MASK, status) == INTEL_GUC_LOAD_STATUS_EXCEPTION) {
+ drm_info(drm, "GuC firmware exception. EIP: %#x\n",
+ intel_uncore_read(uncore, SOFT_SCRATCH(13)));
ret = -ENXIO;
}
}
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h
index b37fc2ffaef2..e6bd66d6ce5a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_reg.h
@@ -22,10 +22,6 @@
#define GS_BOOTROM_JUMP_PASSED (0x76 << GS_BOOTROM_SHIFT)
#define GS_UKERNEL_SHIFT 8
#define GS_UKERNEL_MASK (0xFF << GS_UKERNEL_SHIFT)
-#define GS_UKERNEL_LAPIC_DONE (0x30 << GS_UKERNEL_SHIFT)
-#define GS_UKERNEL_DPC_ERROR (0x60 << GS_UKERNEL_SHIFT)
-#define GS_UKERNEL_EXCEPTION (0x70 << GS_UKERNEL_SHIFT)
-#define GS_UKERNEL_READY (0xF0 << GS_UKERNEL_SHIFT)
#define GS_MIA_SHIFT 16
#define GS_MIA_MASK (0x07 << GS_MIA_SHIFT)
#define GS_MIA_CORE_STATE (0x01 << GS_MIA_SHIFT)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_huc.c b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
index d10b227ac4aa..556829de9c17 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_huc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_huc.c
@@ -124,6 +124,7 @@ int intel_huc_auth(struct intel_huc *huc)
}
intel_uc_fw_change_status(&huc->fw, INTEL_UC_FIRMWARE_RUNNING);
+ drm_info(>->i915->drm, "HuC authenticated\n");
return 0;
fail:
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.c b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
index 09ed29df67bc..da199aa6989f 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.c
@@ -432,6 +432,15 @@ static int __uc_check_hw(struct intel_uc *uc)
return 0;
}
+static void print_fw_ver(struct intel_uc *uc, struct intel_uc_fw *fw)
+{
+ struct drm_i915_private *i915 = uc_to_gt(uc)->i915;
+
+ drm_info(&i915->drm, "%s firmware %s version %u.%u\n",
+ intel_uc_fw_type_repr(fw->type), fw->path,
+ fw->major_ver_found, fw->minor_ver_found);
+}
+
static int __uc_init_hw(struct intel_uc *uc)
{
struct drm_i915_private *i915 = uc_to_gt(uc)->i915;
@@ -442,6 +451,11 @@ static int __uc_init_hw(struct intel_uc *uc)
GEM_BUG_ON(!intel_uc_supports_guc(uc));
GEM_BUG_ON(!intel_uc_wants_guc(uc));
+ print_fw_ver(uc, &guc->fw);
+
+ if (intel_uc_uses_huc(uc))
+ print_fw_ver(uc, &huc->fw);
+
if (!intel_uc_fw_is_loadable(&guc->fw)) {
ret = __uc_check_hw(uc) ||
intel_uc_fw_is_overridden(&guc->fw) ||
@@ -507,24 +521,11 @@ static int __uc_init_hw(struct intel_uc *uc)
intel_rps_lower_unslice(&uc_to_gt(uc)->rps);
}
- drm_info(&i915->drm, "%s firmware %s version %u.%u %s:%s\n",
- intel_uc_fw_type_repr(INTEL_UC_FW_TYPE_GUC), guc->fw.path,
- guc->fw.major_ver_found, guc->fw.minor_ver_found,
- "submission",
+ drm_info(&i915->drm, "GuC submission %s\n",
enableddisabled(intel_uc_uses_guc_submission(uc)));
-
- drm_info(&i915->drm, "GuC SLPC: %s\n",
+ drm_info(&i915->drm, "GuC SLPC %s\n",
enableddisabled(intel_uc_uses_guc_slpc(uc)));
- if (intel_uc_uses_huc(uc)) {
- drm_info(&i915->drm, "%s firmware %s version %u.%u %s:%s\n",
- intel_uc_fw_type_repr(INTEL_UC_FW_TYPE_HUC),
- huc->fw.path,
- huc->fw.major_ver_found, huc->fw.minor_ver_found,
- "authenticated",
- yesno(intel_huc_is_authenticated(huc)));
- }
-
return 0;
/*
--
2.25.1
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