linux-kernel - [PATCH 3.16 059/306] drm/radeon: narrow asic

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Date:   Wed, 15 Feb 2017 22:41:40 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Alex Deucher" <alexander.deucher@....com>
Subject: [PATCH 3.16 059/306] drm/radeon: narrow asic_init for virtualization

3.16.40-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@....com>

commit 884031f0aacf57dad1575f96714efc80de9b19cc upstream.

Only needed on CIK+ due to the way pci reset is handled
by the GPU.

Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/gpu/drm/radeon/radeon_device.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -629,8 +629,9 @@ bool radeon_card_posted(struct radeon_de
 {
 	uint32_t reg;
 
-	/* for pass through, always force asic_init */
-	if (radeon_device_is_virtual())
+	/* 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 */