X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fradeon%2Fradeon_device.c;fp=kernel%2Fdrivers%2Fgpu%2Fdrm%2Fradeon%2Fradeon_device.c;h=4aa2cbe4c85fae3212aae4012bf957e16d2d6f83;hb=52f993b8e89487ec9ee15a7fb4979e0f09a45b27;hp=c566993a2ec3bcbe393ff14d079b0134f0426c7d;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

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) &&