diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 5 |
3 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index 6484229dd10d..9da4e60bdc7a 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -1643,6 +1643,14 @@ static int __init i915_init(void) #endif } + /* + * FIXME: Note that we're lying to the DRM core here so that we can get access + * to the atomic ioctl and the atomic properties. Only plane operations on + * a single CRTC will actually work. + */ + if (i915.nuclear_pageflip) + driver.driver_features |= DRIVER_ATOMIC; + return drm_pci_init(&driver, &i915_pci_driver); } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 3e81d9aaa50a..760d239a73f3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2527,6 +2527,7 @@ struct i915_params { int use_mmio_flip; bool mmio_debug; bool verbose_state_checks; + bool nuclear_pageflip; }; extern struct i915_params i915 __read_mostly; diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 07252d8dc726..44f2262a5553 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -52,6 +52,7 @@ struct i915_params i915 __read_mostly = { .use_mmio_flip = 0, .mmio_debug = 0, .verbose_state_checks = 1, + .nuclear_pageflip = 0, }; module_param_named(modeset, i915.modeset, int, 0400); @@ -178,3 +179,7 @@ MODULE_PARM_DESC(mmio_debug, module_param_named(verbose_state_checks, i915.verbose_state_checks, bool, 0600); MODULE_PARM_DESC(verbose_state_checks, "Enable verbose logs (ie. WARN_ON()) in case of unexpected hw state conditions."); + +module_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0600); +MODULE_PARM_DESC(nuclear_pageflip, + "Force atomic modeset functionality; only planes work for now (default: false)."); |