diff options
| author | Jerome Glisse <jglisse@redhat.com> | 2013-01-02 23:30:34 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-01-03 19:18:40 +0100 |
| commit | 4d0091904cba756274bc4973157f63fb878befc3 (patch) | |
| tree | c4c85d58145a7ac6c7652833df1236e686c51299 /drivers/gpu | |
| parent | drm/radeon: add debugfs file for dma rings (diff) | |
| download | linux-4d0091904cba756274bc4973157f63fb878befc3.tar.xz linux-4d0091904cba756274bc4973157f63fb878befc3.zip | |
drm/radeon: improve ring debugfs printing
Print 32dword before last know rptr as problem most likely comes
from previous command. Also small cosmetic change to the printing.
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ring.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c index 9410e438455d..141f2b6a9cf2 100644 --- a/drivers/gpu/drm/radeon/radeon_ring.c +++ b/drivers/gpu/drm/radeon/radeon_ring.c @@ -770,22 +770,28 @@ static int radeon_debugfs_ring_info(struct seq_file *m, void *data) int ridx = *(int*)node->info_ent->data; struct radeon_ring *ring = &rdev->ring[ridx]; unsigned count, i, j; + u32 tmp; radeon_ring_free_size(rdev, ring); 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)); + tmp = RREG32(ring->wptr_reg) >> ring->ptr_reg_shift; + seq_printf(m, "wptr(0x%04x): 0x%08x [%5d]\n", ring->wptr_reg, tmp, tmp); + tmp = RREG32(ring->rptr_reg) >> ring->ptr_reg_shift; + seq_printf(m, "rptr(0x%04x): 0x%08x [%5d]\n", ring->rptr_reg, tmp, tmp); 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, "driver's copy of the wptr: 0x%08x [%5d]\n", ring->wptr, ring->wptr); + seq_printf(m, "driver's copy of the rptr: 0x%08x [%5d]\n", ring->rptr, ring->rptr); seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw); seq_printf(m, "%u dwords in ring\n", count); - i = ring->rptr; - for (j = 0; j <= count; j++) { - seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]); + /* print 8 dw before current rptr as often it's the last executed + * packet that is the root issue + */ + i = (ring->rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask; + for (j = 0; j <= (count + 32); j++) { + seq_printf(m, "r[%5d]=0x%08x\n", i, ring->ring[i]); i = (i + 1) & ring->ptr_mask; } return 0; |