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authorJerome Glisse <jglisse@redhat.com>2013-01-02 17:30:34 -0500
committerAlex Deucher <alexander.deucher@amd.com>2013-01-03 13:18:40 -0500
commit4d0091904cba756274bc4973157f63fb878befc3 (patch)
treec4c85d58145a7ac6c7652833df1236e686c51299 /drivers/gpu
parent74795486b2966975e54dc869ffc19bb481bc8111 (diff)
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.c20
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;

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