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drm/radeon: improve ring debugfs a bit

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Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2013-12-12 09:42:37 +01:00 committed by Alex Deucher
parent fe3c703c3d
commit df893a2548
1 changed files with 38 additions and 18 deletions
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56
drivers/gpu/drm/radeon/radeon_ring.c
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@ -790,34 +790,54 @@ static int radeon_debugfs_ring_info(struct seq_file *m, void *data)
struct radeon_device *rdev = dev->dev_private;
int ridx = *(int*)node->info_ent->data;
struct radeon_ring *ring = &rdev->ring[ridx];
uint32_t rptr, wptr, rptr_next;
unsigned count, i, j;
u32 tmp;
radeon_ring_free_size(rdev, ring);
count = (ring->ring_size / 4) - ring->ring_free_dw;
tmp = radeon_ring_get_wptr(rdev, ring);
seq_printf(m, "wptr(0x%04x): 0x%08x [%5d]\n", ring->wptr_reg, tmp, tmp);
tmp = radeon_ring_get_rptr(rdev, ring);
seq_printf(m, "rptr(0x%04x): 0x%08x [%5d]\n", ring->rptr_reg, tmp, tmp);
wptr = radeon_ring_get_wptr(rdev, ring);
seq_printf(m, "wptr(0x%04x): 0x%08x [%5d]\n",
ring->wptr_reg, wptr, wptr);
rptr = radeon_ring_get_rptr(rdev, ring);
seq_printf(m, "rptr(0x%04x): 0x%08x [%5d]\n",
ring->rptr_reg, rptr, rptr);
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 [%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, "last semaphore signal addr : 0x%016llx\n", ring->last_semaphore_signal_addr);
seq_printf(m, "last semaphore wait addr : 0x%016llx\n", ring->last_semaphore_wait_addr);
rptr_next = RREG32(ring->rptr_save_reg);
seq_printf(m, "rptr next(0x%04x): 0x%08x [%5d]\n",
ring->rptr_save_reg, rptr_next, rptr_next);
} else
rptr_next = ~0;
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, "last semaphore signal addr : 0x%016llx\n",
ring->last_semaphore_signal_addr);
seq_printf(m, "last semaphore wait addr : 0x%016llx\n",
ring->last_semaphore_wait_addr);
seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
seq_printf(m, "%u dwords in ring\n", count);
if (!ring->ready)
return 0;
/* 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;
if (ring->ready) {
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;
}
i = (rptr + ring->ptr_mask + 1 - 32) & ring->ptr_mask;
for (j = 0; j <= (count + 32); j++) {
seq_printf(m, "r[%5d]=0x%08x", i, ring->ring[i]);
if (rptr == i)
seq_puts(m, " *");
if (rptr_next == i)
seq_puts(m, " #");
seq_puts(m, "\n");
i = (i + 1) & ring->ptr_mask;
}
return 0;
}