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drm/amdgpu: split pipeline sync and vm flush

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This allows us to use the pipeline sync for other tasks as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
This commit is contained in:
Christian König 2016-03-01 15:42:52 +01:00 committed by Alex Deucher
parent 971fe9a941
commit b8c7b39ec1
4 changed files with 35 additions and 9 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
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@ -326,6 +326,7 @@ struct amdgpu_ring_funcs {
struct amdgpu_ib *ib);
void (*emit_fence)(struct amdgpu_ring *ring, uint64_t addr,
uint64_t seq, unsigned flags);
void (*emit_pipeline_sync)(struct amdgpu_ring *ring);
void (*emit_vm_flush)(struct amdgpu_ring *ring, unsigned vm_id,
uint64_t pd_addr);
void (*emit_hdp_flush)(struct amdgpu_ring *ring);
@ -2234,6 +2235,7 @@ amdgpu_get_sdma_instance(struct amdgpu_ring *ring)
#define amdgpu_ring_get_wptr(r) (r)->funcs->get_wptr((r))
#define amdgpu_ring_set_wptr(r) (r)->funcs->set_wptr((r))
#define amdgpu_ring_emit_ib(r, ib) (r)->funcs->emit_ib((r), (ib))
#define amdgpu_ring_emit_pipeline_sync(r) (r)->funcs->emit_pipeline_sync((r))
#define amdgpu_ring_emit_vm_flush(r, vmid, addr) (r)->funcs->emit_vm_flush((r), (vmid), (addr))
#define amdgpu_ring_emit_fence(r, addr, seq, flags) (r)->funcs->emit_fence((r), (addr), (seq), (flags))
#define amdgpu_ring_emit_gds_switch(r, v, db, ds, wb, ws, ab, as) (r)->funcs->emit_gds_switch((r), (v), (db), (ds), (wb), (ws), (ab), (as))

2
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View File

@ -257,6 +257,8 @@ void amdgpu_vm_flush(struct amdgpu_ring *ring,
if (pd_addr != AMDGPU_VM_NO_FLUSH) {
trace_amdgpu_vm_flush(pd_addr, ring->idx, vm_id);
if (ring->funcs->emit_pipeline_sync)
amdgpu_ring_emit_pipeline_sync(ring);
amdgpu_ring_emit_vm_flush(ring, vm_id, pd_addr);
}

29
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
View File

@ -3041,6 +3041,26 @@ static int gfx_v7_0_cp_resume(struct amdgpu_device *adev)
return 0;
}
/**
* gfx_v7_0_ring_emit_vm_flush - cik vm flush using the CP
*
* @ring: the ring to emmit the commands to
*
* Sync the command pipeline with the PFP. E.g. wait for everything
* to be completed.
*/
static void gfx_v7_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
{
int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
if (usepfp) {
/* synce CE with ME to prevent CE fetch CEIB before context switch done */
amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
amdgpu_ring_write(ring, 0);
amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
amdgpu_ring_write(ring, 0);
}
}
/*
* vm
* VMID 0 is the physical GPU addresses as used by the kernel.
@ -3059,13 +3079,6 @@ static void gfx_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
unsigned vm_id, uint64_t pd_addr)
{
int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
if (usepfp) {
/* synce CE with ME to prevent CE fetch CEIB before context switch done */
amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
amdgpu_ring_write(ring, 0);
amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
amdgpu_ring_write(ring, 0);
}
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
@ -5147,6 +5160,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = {
.parse_cs = NULL,
.emit_ib = gfx_v7_0_ring_emit_ib_gfx,
.emit_fence = gfx_v7_0_ring_emit_fence_gfx,
.emit_pipeline_sync = gfx_v7_0_ring_emit_pipeline_sync,
.emit_vm_flush = gfx_v7_0_ring_emit_vm_flush,
.emit_gds_switch = gfx_v7_0_ring_emit_gds_switch,
.emit_hdp_flush = gfx_v7_0_ring_emit_hdp_flush,
@ -5164,6 +5178,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = {
.parse_cs = NULL,
.emit_ib = gfx_v7_0_ring_emit_ib_compute,
.emit_fence = gfx_v7_0_ring_emit_fence_compute,
.emit_pipeline_sync = gfx_v7_0_ring_emit_pipeline_sync,
.emit_vm_flush = gfx_v7_0_ring_emit_vm_flush,
.emit_gds_switch = gfx_v7_0_ring_emit_gds_switch,
.emit_hdp_flush = gfx_v7_0_ring_emit_hdp_flush,

11
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -4692,8 +4692,7 @@ static void gfx_v8_0_ring_emit_fence_gfx(struct amdgpu_ring *ring, u64 addr,
}
static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
unsigned vm_id, uint64_t pd_addr)
static void gfx_v8_0_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
{
int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
uint32_t seq = ring->fence_drv.sync_seq;
@ -4715,6 +4714,12 @@ static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
amdgpu_ring_write(ring, PACKET3(PACKET3_SWITCH_BUFFER, 0));
amdgpu_ring_write(ring, 0);
}
}
static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring,
unsigned vm_id, uint64_t pd_addr)
{
int usepfp = (ring->type == AMDGPU_RING_TYPE_GFX);
amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3));
amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) |
@ -5037,6 +5042,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = {
.parse_cs = NULL,
.emit_ib = gfx_v8_0_ring_emit_ib_gfx,
.emit_fence = gfx_v8_0_ring_emit_fence_gfx,
.emit_pipeline_sync = gfx_v8_0_ring_emit_pipeline_sync,
.emit_vm_flush = gfx_v8_0_ring_emit_vm_flush,
.emit_gds_switch = gfx_v8_0_ring_emit_gds_switch,
.emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush,
@ -5054,6 +5060,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = {
.parse_cs = NULL,
.emit_ib = gfx_v8_0_ring_emit_ib_compute,
.emit_fence = gfx_v8_0_ring_emit_fence_compute,
.emit_pipeline_sync = gfx_v8_0_ring_emit_pipeline_sync,
.emit_vm_flush = gfx_v8_0_ring_emit_vm_flush,
.emit_gds_switch = gfx_v8_0_ring_emit_gds_switch,
.emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush,