diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-03-20 11:05:21 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-03-24 23:56:35 +0200 |
| commit | c5de248484afeb6de259239a23645790038d9df3 (patch) | |
| tree | 828a96a5142a3edcbff126f601e9c5d23c4f447d /drivers/gpu/drm/i915/i915_params.c | |
| parent | 5a08585d38d66dd64b8ae22229bdfae3fdc1ef3e (diff) | |
drm/i915/dpt: Add a modparam to disable DPT via the chicken bit
Add i915.enable_dpt modparam to allow disabling the DPT
usage in hardware via the chicken bit. Useful when debugging
potential DPT issues.
Quickly smoke tested on ADL.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230320090522.9909-6-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_params.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index ade744cccfea..bec94feb512d 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -131,6 +131,9 @@ i915_param_named_unsafe(disable_power_well, int, 0400, i915_param_named_unsafe(enable_ips, int, 0400, "Enable IPS (default: true)"); +i915_param_named_unsafe(enable_dpt, bool, 0400, + "Enable display page table (DPT) (default: true)"); + i915_param_named(fastboot, int, 0400, "Try to skip unnecessary mode sets at boot time " "(0=disabled, 1=enabled) " |