Attachment 52690 Details for Bug 40221 – possible fix

[patch] possible fix

0001-drm-radeon-kms-cayman-explicitly-program-CP_COHER_CN.patch (text/plain), 1.26 KB, created by Alex Deucher on 2011-10-24 06:32:51 UTC

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Creator: Alex Deucher

Created: 2011-10-24 06:32:51 UTC

Size: 1.26 KB

patch

obsolete

>From fa3028f4c2ebb24c7aba835d9a4dc10cfb7a95b2 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Mon, 24 Oct 2011 09:29:23 -0400
>Subject: [PATCH] drm/radeon/kms/cayman: explicitly program CP_COHER_CNTL2 in blit code
>
>This is automatically programmed when using the SURFACE_SYNC packet
>via an IB, but not when using the ring directly.
>
>May fix:
>https://bugs.freedesktop.org/show_bug.cgi?id=40221
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>---
> drivers/gpu/drm/radeon/evergreen_blit_kms.c |    5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/evergreen_blit_kms.c b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
>index 879f733..9ebbdc5 100644
>--- a/drivers/gpu/drm/radeon/evergreen_blit_kms.c
>+++ b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
>@@ -596,6 +596,11 @@ set_default_state(struct radeon_device *rdev)
> 	radeon_ring_write(rdev, upper_32_bits(gpu_addr) & 0xFF);
> 	radeon_ring_write(rdev, dwords);
> 
>+	if (rdev->family >= CHIP_CAYMAN) {
>+		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
>+		radeon_ring_write(rdev, (0x85e8 - PACKET3_SET_CONFIG_REG_START) >> 2);
>+		radeon_ring_write(rdev, 0); /* CP_COHER_CNTL2 */
>+	}
> }
> 
> int evergreen_blit_init(struct radeon_device *rdev)
>-- 
>1.7.1.1
>

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Attachments on bug 40221: 50369 | 50370 | 50371 | 50375 | 50378 | 50404 | 50461 | 52630 | 52635 | 52690 | 52697 | 52699 | 52700 | 52762

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