From 50a583f64bfe53aae4996965c1d1b25d90ce4f64 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 22 May 2013 13:29:33 -0400 Subject: [PATCH] drm/radeon: narrow scope of Apple re-POST hack This narrows the scope of the apple re-POST hack added in: drm/radeon: re-POST the asic on Apple hardware when booted via EFI That patch prevents UVD from working on macs when booted in EFI mode. The original patch fixed macbook2,1 systems which were r5xx and hence have no UVD. Limit the hack to those systems to prevent UVD breakage on newer systems. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=63935 Cc: Matthew Garrett Signed-off-by: Alex Deucher Acked-by: Matthew Garrett --- drivers/gpu/drm/radeon/radeon_device.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index af82c9b..1899738 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -467,8 +467,10 @@ bool radeon_card_posted(struct radeon_device *rdev) { uint32_t reg; + /* 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) + (rdev->pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE) && + (rdev->family < CHIP_R600)) return false; if (ASIC_IS_NODCE(rdev)) -- 2.7.4