Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a8d0fb2f authored by Tom St Denis's avatar Tom St Denis Committed by Alex Deucher
Browse files

drm/amd/amdgpu: Mask rptr as well in ring debugfs 



The read/write pointers on sdma4 devices increment
beyond the ring size and should be masked.  Tested
on my Ryzen 2400G.

Signed-off-by: default avatarTom St Denis <tom.stdenis@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 93dfdf9f

drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c

+1 −1
Original line number Diff line number Diff line
@@ -481,7 +481,7 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf, 
	result = 0;



	if (*pos < 12) {

		early[0] = amdgpu_ring_get_rptr(ring);

		early[0] = amdgpu_ring_get_rptr(ring) & ring->buf_mask;

		early[1] = amdgpu_ring_get_wptr(ring) & ring->buf_mask;

		early[2] = ring->wptr & ring->buf_mask;

		for (i = *pos / 4; i < 3 && size; i++) {