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From e628d1bcf988fe77d8b040d00c97eb20645758ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>
Date: Tue, 12 Nov 2013 10:55:12 -0700
Subject: [PATCH 05/44] drm/radeon: improve ring debugfs a bit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/radeon/radeon_ring.c | 56 +++++++++++++++++++++++-----------
1 file changed, 38 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 9214403..f1cec22 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -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;
}
--
1.7.9.5
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