diff options
| author | Christian König <deathsimple@vodafone.de> | 2012-07-06 18:22:55 +0400 |
|---|---|---|
| committer | Christian König <deathsimple@vodafone.de> | 2012-07-17 12:33:09 +0400 |
| commit | 45df68035c4964d42ea3850980708ce8674f75b3 (patch) | |
| tree | b0d75e0068924399a798d4aa5bcc61b2cbc7e2a0 /drivers/gpu/drm/radeon/radeon_ring.c | |
| parent | 04eb2206d8022dc4a1eadb5e9cc5122c84959881 (diff) | |
| download | linux-45df68035c4964d42ea3850980708ce8674f75b3.tar.xz | |
drm/radeon: record what is next valid wptr for each ring v4
Before emitting any indirect buffer, emit the offset of the next
valid ring content if any. This allow code that want to resume
ring to resume ring right after ib that caused GPU lockup.
v2: use scratch registers instead of storing it into memory
v3: skip over the surface sync for ni and si as well
v4: use SET_CONFIG_REG instead of PACKET0
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ring.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ring.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 087383408a8f..ce8eb9d5af5d 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -451,6 +451,10 @@ static int radeon_debugfs_ring_info(struct seq_file *m, void *data) count = (ring->ring_size / 4) - ring->ring_free_dw; seq_printf(m, "wptr(0x%04x): 0x%08x\n", ring->wptr_reg, RREG32(ring->wptr_reg)); seq_printf(m, "rptr(0x%04x): 0x%08x\n", ring->rptr_reg, RREG32(ring->rptr_reg)); + if (ring->rptr_save_reg) { + seq_printf(m, "rptr next(0x%04x): 0x%08x\n", ring->rptr_save_reg, + RREG32(ring->rptr_save_reg)); + } seq_printf(m, "driver's copy of the wptr: 0x%08x\n", ring->wptr); seq_printf(m, "driver's copy of the rptr: 0x%08x\n", ring->rptr); seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw); |