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| author | Alex Deucher <alexdeucher@gmail.com> | 2010-12-21 16:05:39 -0500 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-01-05 08:31:50 +1000 |
| commit | 17db7042b7ff77a4ae8b83ab42ec8286a9715a48 (patch) | |
| tree | 0b79514c91067ce65e501dfda319b4ee5544b78d /drivers/gpu/drm/radeon/evergreen.c | |
| parent | 4f125010d2d02c481a0fdf5aee23a9f937bc5de1 (diff) | |
| download | lwn-17db7042b7ff77a4ae8b83ab42ec8286a9715a48.tar.gz lwn-17db7042b7ff77a4ae8b83ab42ec8286a9715a48.zip | |
drm/radeon/kms: implement gpu lockup check for evergreen
Now that soft reset works, we can add this.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/evergreen.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/evergreen.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index ec641ce64764..3ae63ceb9c33 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2085,8 +2085,30 @@ int evergreen_mc_init(struct radeon_device *rdev) bool evergreen_gpu_is_lockup(struct radeon_device *rdev) { - /* FIXME: implement for evergreen */ - return false; + u32 srbm_status; + u32 grbm_status; + u32 grbm_status_se0, grbm_status_se1; + struct r100_gpu_lockup *lockup = &rdev->config.evergreen.lockup; + int r; + + srbm_status = RREG32(SRBM_STATUS); + grbm_status = RREG32(GRBM_STATUS); + grbm_status_se0 = RREG32(GRBM_STATUS_SE0); + grbm_status_se1 = RREG32(GRBM_STATUS_SE1); + if (!(grbm_status & GUI_ACTIVE)) { + r100_gpu_lockup_update(lockup, &rdev->cp); + return false; + } + /* force CP activities */ + r = radeon_ring_lock(rdev, 2); + if (!r) { + /* PACKET2 NOP */ + radeon_ring_write(rdev, 0x80000000); + radeon_ring_write(rdev, 0x80000000); + radeon_ring_unlock_commit(rdev); + } + rdev->cp.rptr = RREG32(CP_RB_RPTR); + return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp); } static int evergreen_gpu_soft_reset(struct radeon_device *rdev) |