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intel: query kernel for caps to setup scrn capabilities. 

This queries the kernel for prime support before advertising
the capabilities.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-07-26 10:43:29 +10:00
parent 6705d8237a
commit d14ff42f2a
1 changed files with 20 additions and 0 deletions
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20
src/intel_driver.c
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@ -432,6 +432,25 @@ static Bool can_accelerate_blt(struct intel_screen_private *intel)
return TRUE;
}
static void intel_setup_capabilities(ScrnInfoPtr scrn)
{
#ifdef INTEL_PIXMAP_SHARING
intel_screen_private *intel = intel_get_screen_private(scrn);
uint64_t value;
int ret;
scrn->capabilities = 0;
ret = drmGetCap(intel->drmSubFD, DRM_CAP_PRIME, &value);
if (ret == 0) {
if (value & DRM_PRIME_CAP_EXPORT)
scrn->capabilities |= RR_Capability_SourceOutput | RR_Capability_SinkOffload;
if (value & DRM_PRIME_CAP_IMPORT)
scrn->capabilities |= RR_Capability_SinkOutput;
}
#endif
}
/**
* This is called before ScreenInit to do any require probing of screen
* configuration.
@ -524,6 +543,7 @@ static Bool I830PreInit(ScrnInfoPtr scrn, int flags)
if (!I830GetEarlyOptions(scrn))
return FALSE;
intel_setup_capabilities(scrn);
intel_check_chipset_option(scrn);
intel_check_dri_option(scrn);