Attachment 38590 Details for Bug 29986 – fix

[patch] fix

0001-drm-radeon-kms-evergreen-fix-backend-setup.patch (text/plain), 1.90 KB, created by Alex Deucher on 2010-09-09 16:13:42 UTC

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Creator: Alex Deucher

Created: 2010-09-09 16:13:42 UTC

Size: 1.90 KB

patch

obsolete

>From b137ddbed22aa360d29aa5936107726adbea0688 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexdeucher@gmail.com>
>Date: Thu, 9 Sep 2010 19:09:58 -0400
>Subject: [PATCH] drm/radeon/kms/evergreen: fix backend setup
>
>Similar to the fix for rv740
>(6271901d828b34b27607314026deaf417f9f9b75).
>
>This patch fixes rendering errors on some evergreen boards.
>Hardcoding the backend map is not an optimal solution, but
>a better fix is being worked on.
>
>Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
>Cc: stable@kernel.org
>---
> drivers/gpu/drm/radeon/evergreen.c |   27 +++++++++++++++++++--------
> 1 files changed, 19 insertions(+), 8 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
>index f5430ed..8efffb6 100644
>--- a/drivers/gpu/drm/radeon/evergreen.c
>+++ b/drivers/gpu/drm/radeon/evergreen.c
>@@ -1195,14 +1195,25 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
> 									EVERGREEN_MAX_BACKENDS_MASK));
> 			break;
> 		}
>-	} else
>-		gb_backend_map =
>-			evergreen_get_tile_pipe_to_backend_map(rdev,
>-							       rdev->config.evergreen.max_tile_pipes,
>-							       rdev->config.evergreen.max_backends,
>-							       ((EVERGREEN_MAX_BACKENDS_MASK <<
>-								 rdev->config.evergreen.max_backends) &
>-								EVERGREEN_MAX_BACKENDS_MASK));
>+	} else {
>+		switch (rdev->family) {
>+		case CHIP_CYPRESS:
>+		case CHIP_HEMLOCK:
>+			gb_backend_map = 0x66442200;
>+			break;
>+		case CHIP_JUNIPER:
>+			gb_backend_map = 0x00006420;
>+			break;
>+		default:
>+			gb_backend_map =
>+				evergreen_get_tile_pipe_to_backend_map(rdev,
>+								       rdev->config.evergreen.max_tile_pipes,
>+								       rdev->config.evergreen.max_backends,
>+								       ((EVERGREEN_MAX_BACKENDS_MASK <<
>+									 rdev->config.evergreen.max_backends) &
>+									EVERGREEN_MAX_BACKENDS_MASK));
>+		}
>+	}
> 
> 	rdev->config.evergreen.tile_config = gb_addr_config;
> 	WREG32(GB_BACKEND_MAP, gb_backend_map);
>-- 
>1.7.1.1
>

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Attachments on bug 29986: 38392 | 38393 | 38403 | 38590

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