diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/radeon/radeon_device.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/radeon/radeon_device.c b/kernel/drivers/gpu/drm/radeon/radeon_device.c index c566993a2..4aa2cbe4c 100644 --- a/kernel/drivers/gpu/drm/radeon/radeon_device.c +++ b/kernel/drivers/gpu/drm/radeon/radeon_device.c @@ -630,6 +630,23 @@ void radeon_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) /* * GPU helpers function. */ + +/** + * radeon_device_is_virtual - check if we are running is a virtual environment + * + * Check if the asic has been passed through to a VM (all asics). + * Used at driver startup. + * Returns true if virtual or false if not. + */ +static bool radeon_device_is_virtual(void) +{ +#ifdef CONFIG_X86 + return boot_cpu_has(X86_FEATURE_HYPERVISOR); +#else + return false; +#endif +} + /** * radeon_card_posted - check if the hw has already been initialized * @@ -643,6 +660,11 @@ bool radeon_card_posted(struct radeon_device *rdev) { uint32_t reg; + /* for pass through, always force asic_init for CI */ + if (rdev->family >= CHIP_BONAIRE && + radeon_device_is_virtual()) + return false; + /* required for EFI mode on macbook2,1 which uses an r5xx asic */ if (efi_enabled(EFI_BOOT) && (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && |