i915 is pretty much feature complete. Support for atomic i915-specific
connector properties is still missing; those properties can (for now)
only be set through the legacy ioctl.
ILK style watermarks and gen9+ watermarks are handled atomically,
and nonblocking modesets work. FBC has also been made to work with
atomic.
gen4x- and vlv/chv watermarks still need to be fixed, so disable atomic
by default there for now.
Flip the switch!!
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Lyude <cpaul@xxxxxxxxxx>
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
I probably missed a lot of people who also worked on atomic support in i915,
feel free to ack the patch if you've worked on it. :)
drivers/gpu/drm/i915/i915_drv.c | 10 +++++++---
drivers/gpu/drm/i915/i915_params.c | 4 ++--
2 files changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0e8eb4b6db00..d4d1abf6d9d2 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1206,11 +1206,15 @@ static void i915_driver_unregister(struct drm_i915_private *dev_priv)
*/
int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ const struct intel_device_info *match_info =
+ (struct intel_device_info *) ent->driver_data;
struct drm_i915_private *dev_priv;
int ret;
- if (i915.nuclear_pageflip)
- driver.driver_features |= DRIVER_ATOMIC;
+ /* Enable nuclear pageflip on ILK+, except vlv/chv */
+ if (!i915.nuclear_pageflip &&
+ (match_info->gen < 5 || match_info->has_gmch_display))
+ driver.driver_features &= ~DRIVER_ATOMIC;
ret = -ENOMEM;
dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
@@ -2614,7 +2618,7 @@ static struct drm_driver driver = {
*/
.driver_features =
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME |
- DRIVER_RENDER | DRIVER_MODESET,
+ DRIVER_RENDER | DRIVER_MODESET | DRIVER_ATOMIC,
.open = i915_driver_open,
.lastclose = i915_driver_lastclose,
.preclose = i915_driver_preclose,
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index 0e280fbd52f1..bb3feabec238 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -205,9 +205,9 @@ 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_param_named_unsafe(nuclear_pageflip, i915.nuclear_pageflip, bool, 0400);
MODULE_PARM_DESC(nuclear_pageflip,
- "Force atomic modeset functionality; asynchronous mode is not yet supported. (default: false).");
+ "Force enable atomic functionality on platforms that don't have full support yet.");
/* WA to get away with the default setting in VBT for early platforms.Will be removed */
module_param_named_unsafe(edp_vswing, i915.edp_vswing, int, 0400);
--
2.7.4
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