diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 81 |
1 files changed, 75 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index 8f6ce948c684..c596b6df2e2d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -33,6 +33,7 @@ #include <drm/amdgpu_drm.h> #include "amdgpu.h" +#include "amdgpu_ras_mgr.h" #include "atom.h" /* @@ -159,8 +160,16 @@ void amdgpu_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count) */ void amdgpu_ring_generic_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib) { - while (ib->length_dw & ring->funcs->align_mask) - ib->ptr[ib->length_dw++] = ring->funcs->nop; + u32 align_mask = ring->funcs->align_mask; + u32 count = ib->length_dw & align_mask; + + if (count) { + count = align_mask + 1 - count; + + memset32(&ib->ptr[ib->length_dw], ring->funcs->nop, count); + + ib->length_dw += count; + } } /** @@ -460,9 +469,6 @@ bool amdgpu_ring_soft_recovery(struct amdgpu_ring *ring, unsigned int vmid, ktime_t deadline; bool ret; - if (unlikely(ring->adev->debug_disable_soft_recovery)) - return false; - deadline = ktime_add_us(ktime_get(), 10000); if (amdgpu_sriov_vf(ring->adev) || !ring->funcs->soft_recovery || !fence) @@ -490,6 +496,66 @@ bool amdgpu_ring_soft_recovery(struct amdgpu_ring *ring, unsigned int vmid, */ #if defined(CONFIG_DEBUG_FS) +static ssize_t amdgpu_ras_cper_debugfs_read(struct file *f, char __user *buf, + size_t size, loff_t *offset) +{ + const uint8_t ring_header_size = 12; + struct amdgpu_ring *ring = file_inode(f)->i_private; + struct ras_cmd_cper_snapshot_req *snapshot_req __free(kfree) = + kzalloc(sizeof(struct ras_cmd_cper_snapshot_req), GFP_KERNEL); + struct ras_cmd_cper_snapshot_rsp *snapshot_rsp __free(kfree) = + kzalloc(sizeof(struct ras_cmd_cper_snapshot_rsp), GFP_KERNEL); + struct ras_cmd_cper_record_req *record_req __free(kfree) = + kzalloc(sizeof(struct ras_cmd_cper_record_req), GFP_KERNEL); + struct ras_cmd_cper_record_rsp *record_rsp __free(kfree) = + kzalloc(sizeof(struct ras_cmd_cper_record_rsp), GFP_KERNEL); + uint8_t *ring_header __free(kfree) = + kzalloc(ring_header_size, GFP_KERNEL); + uint32_t total_cper_num; + uint64_t start_cper_id; + int r; + + if (!snapshot_req || !snapshot_rsp || !record_req || !record_rsp || + !ring_header) + return -ENOMEM; + + if (!(*offset)) { + /* Need at least 12 bytes for the header on the first read */ + if (size < ring_header_size) + return -EINVAL; + + if (copy_to_user(buf, ring_header, ring_header_size)) + return -EFAULT; + buf += ring_header_size; + size -= ring_header_size; + } + + r = amdgpu_ras_mgr_handle_ras_cmd(ring->adev, + RAS_CMD__GET_CPER_SNAPSHOT, + snapshot_req, sizeof(struct ras_cmd_cper_snapshot_req), + snapshot_rsp, sizeof(struct ras_cmd_cper_snapshot_rsp)); + if (r || !snapshot_rsp->total_cper_num) + return r; + + start_cper_id = snapshot_rsp->start_cper_id; + total_cper_num = snapshot_rsp->total_cper_num; + + record_req->buf_ptr = (uint64_t)(uintptr_t)buf; + record_req->buf_size = size; + record_req->cper_start_id = start_cper_id + *offset; + record_req->cper_num = total_cper_num; + r = amdgpu_ras_mgr_handle_ras_cmd(ring->adev, RAS_CMD__GET_CPER_RECORD, + record_req, sizeof(struct ras_cmd_cper_record_req), + record_rsp, sizeof(struct ras_cmd_cper_record_rsp)); + if (r) + return r; + + r = *offset ? record_rsp->real_data_size : record_rsp->real_data_size + ring_header_size; + (*offset) += record_rsp->real_cper_num; + + return r; +} + /* Layout of file is 12 bytes consisting of * - rptr * - wptr @@ -506,6 +572,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, char __user *buf, loff_t i; int r; + if (ring->funcs->type == AMDGPU_RING_TYPE_CPER && amdgpu_uniras_enabled(ring->adev)) + return amdgpu_ras_cper_debugfs_read(f, buf, size, pos); + if (*pos & 3 || size & 3) return -EINVAL; @@ -811,7 +880,7 @@ int amdgpu_ring_reset_helper_end(struct amdgpu_ring *ring, if (r) return r; - /* signal the fence of the bad job */ + /* signal the guilty fence and set an error on all fences from the context */ if (guilty_fence) amdgpu_fence_driver_guilty_force_completion(guilty_fence); /* Re-emit the non-guilty commands */ |