Hi Daniel,
On Thursday 05 July 2012 13:31:17 Daniel Vetter wrote:
On Thu, May 24, 2012 at 09:08:59PM +0300, ville.syrjala@linux.intel.com
wrote:
From: Ville Syrjälä ville.syrjala@linux.intel.com
MI display flips can't handle some changes in the framebuffer format or layout. Return an error in such cases.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com
Queued for -next, thanks for the patch. I've punted on the others, hoping for a few i-g-t tests (and maybe someone else that could review them). Safe for the uninitialized stack var patch and this one, because we need this check to fix up gen4+ tileoffset limitations.
Yours, Daniel
drivers/gpu/drm/i915/intel_display.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index f4338cb..72ac2f9 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6217,6 +6217,19 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,> unsigned long flags; int ret;
- /* Can't change pixel format via MI display flips. */
- if (fb->pixel_format != crtc->fb->pixel_format)
return -EINVAL;
Is this still needed if we apply my "drm: Don't allow page flip to change pixel format" patch ?
/*
* TILEOFF/LINOFF registers can't be changed via MI display flips.* Note that pitch changes could also affect these register.*/if (INTEL_INFO(dev)->gen > 3 &&
(fb->offsets[0] != crtc->fb->offsets[0] ||fb->pitches[0] != crtc->fb->pitches[0]))return -EINVAL;work = kzalloc(sizeof *work, GFP_KERNEL); if (work == NULL)
return -ENOMEM;