commit: 86f5c9edbb3bac37cc8cee6528a929005ba72aad From: Alex Deucher <[email protected]> Date: Mon, 20 Dec 2010 12:35:04 -0500 Subject: [PATCH] drm/radeon/kms/evergreen: reset the grbm blocks at resume and init
This fixes module reloading and resume as the gfx block seems to be left in a bad state in some cases. Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]> --- drivers/gpu/drm/radeon/evergreen.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 6ced1ba..7b337c3 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2583,6 +2583,11 @@ int evergreen_resume(struct radeon_device *rdev) { int r; + /* reset the asic, the gfx blocks are often in a bad state + * after the driver is unloaded or after a resume + */ + if (radeon_asic_reset(rdev)) + dev_warn(rdev->dev, "GPU reset failed !\n"); /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw, * posting will perform necessary task to bring back GPU into good * shape. @@ -2699,6 +2704,11 @@ int evergreen_init(struct radeon_device *rdev) r = radeon_atombios_init(rdev); if (r) return r; + /* reset the asic, the gfx blocks are often in a bad state + * after the driver is unloaded or after a resume + */ + if (radeon_asic_reset(rdev)) + dev_warn(rdev->dev, "GPU reset failed !\n"); /* Post card if necessary */ if (!evergreen_card_posted(rdev)) { if (!rdev->bios) { _______________________________________________ stable mailing list [email protected] http://linux.kernel.org/mailman/listinfo/stable
