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drm/i915: page flip support for Ironlake

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This patch adds support for page flipping on Ironlake, which uses
different interrupt bits for triggering flip submit IRQs.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: hand-resolved for rebasing off of render power saving patch]
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Jesse Barnes 2010-01-29 11:18:31 -08:00 committed by Eric Anholt
parent f034b12dbb
commit 013d5aa2bb
1 changed files with 15 additions and 4 deletions
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19
drivers/gpu/drm/i915/i915_irq.c
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@ -309,11 +309,21 @@ irqreturn_t ironlake_irq_handler(struct drm_device *dev)
if (de_iir & DE_GSE)
ironlake_opregion_gse_intr(dev);
if (de_iir & DE_PIPEA_VBLANK)
drm_handle_vblank(dev, 0);
if (de_iir & DE_PLANEA_FLIP_DONE)
intel_prepare_page_flip(dev, 0);
if (de_iir & DE_PIPEB_VBLANK)
if (de_iir & DE_PLANEB_FLIP_DONE)
intel_prepare_page_flip(dev, 1);
if (de_iir & DE_PIPEA_VBLANK) {
drm_handle_vblank(dev, 0);
intel_finish_page_flip(dev, 0);
}
if (de_iir & DE_PIPEB_VBLANK) {
drm_handle_vblank(dev, 1);
intel_finish_page_flip(dev, 1);
}
/* check event from PCH */
if ((de_iir & DE_PCH_EVENT) &&
@ -1022,7 +1032,8 @@ static int ironlake_irq_postinstall(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
/* enable kind of interrupts always enabled */
u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT;
u32 display_mask = DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE;
u32 render_mask = GT_USER_INTERRUPT;
u32 hotplug_mask = SDE_CRT_HOTPLUG | SDE_PORTB_HOTPLUG |
SDE_PORTC_HOTPLUG | SDE_PORTD_HOTPLUG;