diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index f53887e2f528..d55c8b7fdb59 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -349,6 +349,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, ring->buf_mask = (ring->ring_size / 4) - 1; ring->ptr_mask = ring->funcs->support_64bit_ptrs ? 0xffffffffffffffff : ring->buf_mask; + /* Initialize cached_rptr to 0 */ + ring->cached_rptr = 0; /* Allocate ring buffer */ if (ring->is_mes_queue) { @@ -576,12 +578,32 @@ out: return result; } +static ssize_t amdgpu_debugfs_virt_ring_read(struct file *f, char __user *buf, + size_t size, loff_t *pos) +{ + struct amdgpu_ring *ring = file_inode(f)->i_private; + + if (*pos & 3 || size & 3) + return -EINVAL; + + if (ring->funcs->type == AMDGPU_RING_TYPE_CPER) + amdgpu_virt_req_ras_cper_dump(ring->adev, false); + + return amdgpu_debugfs_ring_read(f, buf, size, pos); +} + static const struct file_operations amdgpu_debugfs_ring_fops = { .owner = THIS_MODULE, .read = amdgpu_debugfs_ring_read, .llseek = default_llseek }; +static const struct file_operations amdgpu_debugfs_virt_ring_fops = { + .owner = THIS_MODULE, + .read = amdgpu_debugfs_virt_ring_read, + .llseek = default_llseek +}; + static ssize_t amdgpu_debugfs_mqd_read(struct file *f, char __user *buf, size_t size, loff_t *pos) { @@ -669,9 +691,14 @@ void amdgpu_debugfs_ring_init(struct amdgpu_device *adev, char name[32]; sprintf(name, "amdgpu_ring_%s", ring->name); - debugfs_create_file_size(name, S_IFREG | 0444, root, ring, - &amdgpu_debugfs_ring_fops, - ring->ring_size + 12); + if (amdgpu_sriov_vf(adev)) + debugfs_create_file_size(name, S_IFREG | 0444, root, ring, + &amdgpu_debugfs_virt_ring_fops, + ring->ring_size + 12); + else + debugfs_create_file_size(name, S_IFREG | 0444, root, ring, + &amdgpu_debugfs_ring_fops, + ring->ring_size + 12); if (ring->mqd_obj) { sprintf(name, "amdgpu_mqd_%s", ring->name); |