bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: Modify indirect buffer packages for resubmission

Browse Source 
When the preempted IB frame resubmitted to cp, we need to modify the frame
data including:
1. set PRE_RESUME 1 in CONTEXT_CONTROL.
2. use meta data(DE and CE) read from CSA in WRITE_DATA.

Add functions to save the location the first time IBs emitted and callback
to patch the package when resubmission happens.

Signed-off-by: Jiadong Zhu <Jiadong.Zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jiadong Zhu
2023-05-25 16:52:55 +08:00
committed by Alex Deucher
parent f2bcc0c7db
commit 8ff865be93
4 changed files with 102 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
drivers/gpu/drm/amd/amdgpu/amdgpu_ring_mux.c
View File

@@ -105,6 +105,16 @@ static void amdgpu_mux_resubmit_chunks(struct amdgpu_ring_mux *mux)
amdgpu_fence_update_start_timestamp(e->ring,
chunk->sync_seq,
ktime_get());
if (chunk->sync_seq ==
le32_to_cpu(*(e->ring->fence_drv.cpu_addr + 2))) {
if (chunk->cntl_offset <= e->ring->buf_mask)
amdgpu_ring_patch_cntl(e->ring,
chunk->cntl_offset);
if (chunk->ce_offset <= e->ring->buf_mask)
amdgpu_ring_patch_ce(e->ring, chunk->ce_offset);
if (chunk->de_offset <= e->ring->buf_mask)
amdgpu_ring_patch_de(e->ring, chunk->de_offset);
}
amdgpu_ring_mux_copy_pkt_from_sw_ring(mux, e->ring,
chunk->start,
chunk->end);
@@ -407,6 +417,17 @@ void amdgpu_sw_ring_ib_end(struct amdgpu_ring *ring)
amdgpu_ring_mux_end_ib(mux, ring);
}
void amdgpu_sw_ring_ib_mark_offset(struct amdgpu_ring *ring, enum amdgpu_ring_mux_offset_type type)
{
struct amdgpu_device *adev = ring->adev;
struct amdgpu_ring_mux *mux = &adev->gfx.muxer;
unsigned offset;
offset = ring->wptr & ring->buf_mask;
amdgpu_ring_mux_ib_mark_offset(mux, ring, offset, type);
}
void amdgpu_ring_mux_start_ib(struct amdgpu_ring_mux *mux, struct amdgpu_ring *ring)
{
struct amdgpu_mux_entry *e;
@@ -429,6 +450,10 @@ void amdgpu_ring_mux_start_ib(struct amdgpu_ring_mux *mux, struct amdgpu_ring *r
}
chunk->start = ring->wptr;
/* the initialized value used to check if they are set by the ib submission*/
chunk->cntl_offset = ring->buf_mask + 1;
chunk->de_offset = ring->buf_mask + 1;
chunk->ce_offset = ring->buf_mask + 1;
list_add_tail(&chunk->entry, &e->list);
}
@@ -454,6 +479,41 @@ static void scan_and_remove_signaled_chunk(struct amdgpu_ring_mux *mux, struct a
}
}
void amdgpu_ring_mux_ib_mark_offset(struct amdgpu_ring_mux *mux,
struct amdgpu_ring *ring, u64 offset,
enum amdgpu_ring_mux_offset_type type)
{
struct amdgpu_mux_entry *e;
struct amdgpu_mux_chunk *chunk;
e = amdgpu_ring_mux_sw_entry(mux, ring);
if (!e) {
DRM_ERROR("cannot find entry!\n");
return;
}
chunk = list_last_entry(&e->list, struct amdgpu_mux_chunk, entry);
if (!chunk) {
DRM_ERROR("cannot find chunk!\n");
return;
}
switch (type) {
case AMDGPU_MUX_OFFSET_TYPE_CONTROL:
chunk->cntl_offset = offset;
break;
case AMDGPU_MUX_OFFSET_TYPE_DE:
chunk->de_offset = offset;
break;
case AMDGPU_MUX_OFFSET_TYPE_CE:
chunk->ce_offset = offset;
break;
default:
DRM_ERROR("invalid type (%d)\n", type);
break;
}
}
void amdgpu_ring_mux_end_ib(struct amdgpu_ring_mux *mux, struct amdgpu_ring *ring)
{
struct amdgpu_mux_entry *e;