From: Rafał Miłecki Date: Tue, 10 Nov 2009 21:26:21 +0000 (+0100) Subject: drm/radeon/kms: fix ring info in debugfs on r600+ X-Git-Tag: firefly_0821_release~9833^2~3227^2~85^2~13 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d684076627a4561ea698bf7652a1a1baabdcdbdc;p=firefly-linux-kernel-4.4.55.git drm/radeon/kms: fix ring info in debugfs on r600+ Signed-off-by: Rafał Miłecki Acked-by: Jerome Glisse Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 26947e8dadcb..94e7fd2f59e9 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -2361,21 +2361,21 @@ static int r600_debugfs_cp_ring_info(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct radeon_device *rdev = dev->dev_private; - uint32_t rdp, wdp; unsigned count, i, j; radeon_ring_free_size(rdev); - rdp = RREG32(CP_RB_RPTR); - wdp = RREG32(CP_RB_WPTR); - count = (rdp + rdev->cp.ring_size - wdp) & rdev->cp.ptr_mask; + count = (rdev->cp.ring_size / 4) - rdev->cp.ring_free_dw; seq_printf(m, "CP_STAT 0x%08x\n", RREG32(CP_STAT)); - seq_printf(m, "CP_RB_WPTR 0x%08x\n", wdp); - seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp); + seq_printf(m, "CP_RB_WPTR 0x%08x\n", RREG32(CP_RB_WPTR)); + seq_printf(m, "CP_RB_RPTR 0x%08x\n", RREG32(CP_RB_RPTR)); + seq_printf(m, "driver's copy of the CP_RB_WPTR 0x%08x\n", rdev->cp.wptr); + seq_printf(m, "driver's copy of the CP_RB_RPTR 0x%08x\n", rdev->cp.rptr); seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw); seq_printf(m, "%u dwords in ring\n", count); + i = rdev->cp.rptr; for (j = 0; j <= count; j++) { - i = (rdp + j) & rdev->cp.ptr_mask; seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]); + i = (i + 1) & rdev->cp.ptr_mask; } return 0; }