`guc_firmware_path` and `huc_firmware_path` module parameters are added.
Using the parameter disables version checks and loads desired firmware
instead of the default one.
v2: make params unsafe && notice about disabled fw check (J. Lahtinen)
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Michal Winiarski <michal.winiarski@xxxxxxxxx>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@xxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_params.c | 10 ++++++++++
drivers/gpu/drm/i915/i915_params.h | 2 ++
drivers/gpu/drm/i915/intel_guc_loader.c | 6 +++++-
drivers/gpu/drm/i915/intel_huc.c | 6 +++++-
drivers/gpu/drm/i915/intel_uc.c | 6 ++++--
5 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 2e9645e..b6a7e36 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -59,6 +59,8 @@ struct i915_params i915 __read_mostly = {
.enable_guc_loading = 0,
.enable_guc_submission = 0,
.guc_log_level = -1,
+ .guc_firmware_path = NULL,
+ .huc_firmware_path = NULL,
.enable_dp_mst = true,
.inject_load_failure = 0,
.enable_dpcd_backlight = false,
@@ -230,6 +232,14 @@ module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
MODULE_PARM_DESC(guc_log_level,
"GuC firmware logging level (-1:disabled (default), 0-3:enabled)");
+module_param_named_unsafe(guc_firmware_path, i915.guc_firmware_path, charp, 0400);
+MODULE_PARM_DESC(guc_firmware_path,
+ "GuC firmware path to use instead of the default one");
+
+module_param_named_unsafe(huc_firmware_path, i915.huc_firmware_path, charp, 0400);
+MODULE_PARM_DESC(huc_firmware_path,
+ "HuC firmware path to use instead of the default one");
+
module_param_named_unsafe(enable_dp_mst, i915.enable_dp_mst, bool, 0600);
MODULE_PARM_DESC(enable_dp_mst,
"Enable multi-stream transport (MST) for new DisplayPort sinks. (default: true)");
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 55d47ee..34148cc 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -46,6 +46,8 @@
func(int, enable_guc_loading); \
func(int, enable_guc_submission); \
func(int, guc_log_level); \
+ func(char *, guc_firmware_path); \
+ func(char *, huc_firmware_path); \
func(int, use_mmio_flip); \
func(int, mmio_debug); \
func(int, edp_vswing); \
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index f8c9e31..d1d183b 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -407,7 +407,11 @@ int intel_guc_select_fw(struct intel_guc *guc)
guc->fw.load_status = INTEL_UC_FIRMWARE_NONE;
guc->fw.fw = INTEL_UC_FW_TYPE_GUC;
- if (IS_SKYLAKE(dev_priv)) {
+ if (i915.guc_firmware_path) {
+ guc->fw.path = i915.guc_firmware_path;
+ guc->fw.major_ver_wanted = 0;
+ guc->fw.minor_ver_wanted = 0;
+ } else if (IS_SKYLAKE(dev_priv)) {
guc->fw.path = I915_SKL_GUC_UCODE;
guc->fw.major_ver_wanted = SKL_FW_MAJOR;
guc->fw.minor_ver_wanted = SKL_FW_MINOR;
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c
index ea67abc..ab4ee08 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -153,7 +153,11 @@ void intel_huc_select_fw(struct intel_huc *huc)
huc->fw.load_status = INTEL_UC_FIRMWARE_NONE;
huc->fw.fw = INTEL_UC_FW_TYPE_HUC;
- if (IS_SKYLAKE(dev_priv)) {
+ if (i915.huc_firmware_path) {
+ huc->fw.path = i915.huc_firmware_path;
+ huc->fw.major_ver_wanted = 0;
+ huc->fw.minor_ver_wanted = 0;
+ } else if (IS_SKYLAKE(dev_priv)) {
huc->fw.path = I915_SKL_HUC_UCODE;
huc->fw.major_ver_wanted = SKL_HUC_FW_MAJOR;
huc->fw.minor_ver_wanted = SKL_HUC_FW_MINOR;
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index eaa2b75..c31f05a 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -356,8 +356,10 @@ void intel_uc_prepare_fw(struct drm_i915_private *dev_priv,
goto fail;
}
- if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
- uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
+ if (uc_fw->major_ver_wanted == 0 && uc_fw->minor_ver_wanted == 0) {
+ DRM_NOTE("Skipping uC firmware version check\n");
+ } else if (uc_fw->major_ver_found != uc_fw->major_ver_wanted ||
+ uc_fw->minor_ver_found < uc_fw->minor_ver_wanted) {
DRM_NOTE("uC firmware version %d.%d, required %d.%d\n",
uc_fw->major_ver_found, uc_fw->minor_ver_found,
uc_fw->major_ver_wanted, uc_fw->minor_ver_wanted);
--
2.9.3
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