From: Jani Nikula Date: Wed, 28 Aug 2024 11:19:09 +0000 (+0300) Subject: drm/i915: deprecate the i915.modeset module parameter X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=a74549dd55d21612171334fb70e45241d0ce0487;p=users%2Fdwmw2%2Flinux.git drm/i915: deprecate the i915.modeset module parameter The i915.modeset parameter doesn't really provide any useful benefit over the nomodeset kernel parameter. Anything that i915.modeset does can be achieved via nomodeset or not probing i915 at all. Unfortunately, the i915.modeset parameter is widely referenced on various forums, and removing it is not that simple. Start off by deprecating it in the module parameter documentation, and logging a warning message on non-default values. Cc: Daniel Veter Reviewed-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/2c63e2048eed64f728478fbcfc84f51c7f3212e6.1724843853.git.jani.nikula@intel.com Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/i915_module.c b/drivers/gpu/drm/i915/i915_module.c index 3397c2368ed8d..7ed6d70389af9 100644 --- a/drivers/gpu/drm/i915/i915_module.c +++ b/drivers/gpu/drm/i915/i915_module.c @@ -29,6 +29,12 @@ static int i915_check_nomodeset(void) * nomodeset boot option. */ + if (i915_modparams.modeset == 0) + pr_warn("i915.modeset=0 is deprecated. Please use the 'nomodeset' kernel parameter instead.\n"); + else if (i915_modparams.modeset != -1) + pr_warn("i915.modeset=%d is deprecated. Please remove it and the 'nomodeset' kernel parameter instead.\n", + i915_modparams.modeset); + if (i915_modparams.modeset == 0) use_kms = false; diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 316e55f3e87bd..37746dd619fd8 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -64,8 +64,7 @@ struct i915_params i915_modparams __read_mostly = { */ i915_param_named(modeset, int, 0400, - "Use kernel modesetting [KMS] (0=disable, " - "1=on, -1=force vga console preference [default])"); + "Deprecated. Use the 'nomodeset' kernel parameter instead."); i915_param_named_unsafe(reset, uint, 0400, "Attempt GPU resets (0=disabled, 1=full gpu reset, 2=engine reset [default])");