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drm/i915/uc: Add params for specifying firmware

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`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@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
This commit is contained in:
Arkadiusz Hiler
2017-03-14 15:28:14 +01:00
committed by Joonas Lahtinen
parent b551f610b3
commit b3420dde38
5 changed files with 26 additions and 4 deletions
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10
drivers/gpu/drm/i915/i915_params.c
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@@ -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)");