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|
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can
* be found in the LICENSE file.
*
*/
//
//
//
#include <stdlib.h>
#include "common/cl/assert_cl.h"
#include "extent_cl_12.h"
#include "runtime_cl_12.h"
//
// DURABLE R/W HOST EXTENT -- STANDARD CACHED MEMORY
//
void
skc_extent_phrw_alloc(struct skc_runtime * const runtime,
struct skc_extent_phrw * const extent,
size_t const size)
{
extent->hrw = skc_runtime_host_perm_alloc(runtime,SKC_MEM_FLAGS_READ_WRITE,size);
}
void
skc_extent_phrw_free(struct skc_runtime * const runtime,
struct skc_extent_phrw * const extent)
{
skc_runtime_host_perm_free(runtime,extent->hrw);
}
//
// DURABLE R/W DEVICE EXTENT -- ALLOCATED FROM DEVICE HEAP
//
void
skc_extent_pdrw_alloc(struct skc_runtime * const runtime,
struct skc_extent_pdrw * const extent,
size_t const size)
{
extent->drw = skc_runtime_device_perm_alloc(runtime,
CL_MEM_READ_WRITE | CL_MEM_HOST_NO_ACCESS,
size);
}
void
skc_extent_pdrw_free(struct skc_runtime * const runtime,
struct skc_extent_pdrw * const extent)
{
skc_runtime_device_perm_free(runtime,extent->drw);
}
//
// EPHEMERAL DEVICE R/W EXTENT -- ALLOCATED QUICKLY FROM A MANAGED RING
//
void
skc_extent_tdrw_alloc(struct skc_runtime * const runtime,
struct skc_extent_tdrw * const extent,
size_t const size)
{
extent->size = size;
extent->drw = skc_runtime_device_temp_alloc(runtime,
CL_MEM_READ_WRITE | CL_MEM_HOST_NO_ACCESS,
size,&extent->id,NULL);
}
void
skc_extent_tdrw_free(struct skc_runtime * const runtime,
struct skc_extent_tdrw * const extent)
{
skc_runtime_device_temp_free(runtime,extent->drw,extent->id);
}
void
skc_extent_tdrw_zero(struct skc_extent_tdrw * const extent,
cl_command_queue const cq,
cl_event * const event)
{
if (extent->size == 0)
return;
skc_uint const zero = 0;
cl(EnqueueFillBuffer(cq,
extent->drw,
&zero,
sizeof(zero),
0,
extent->size,
0,NULL,event));
}
//
// DURABLE SMALL EXTENTS BACKING ATOMICS
//
void
skc_extent_phr_pdrw_alloc(struct skc_runtime * const runtime,
struct skc_extent_phr_pdrw * const extent,
size_t const size)
{
extent->size = size;
extent->hr = skc_runtime_host_perm_alloc(runtime,SKC_MEM_FLAGS_READ_ONLY,size);
extent->drw = skc_runtime_device_perm_alloc(runtime,CL_MEM_READ_WRITE,size);
}
void
skc_extent_phr_pdrw_free(struct skc_runtime * const runtime,
struct skc_extent_phr_pdrw * const extent)
{
skc_runtime_host_perm_free(runtime,extent->hr);
skc_runtime_device_perm_free(runtime,extent->drw);
}
void
skc_extent_phr_pdrw_read(struct skc_extent_phr_pdrw * const extent,
cl_command_queue const cq,
cl_event * const event)
{
if (extent->size == 0)
return;
cl(EnqueueReadBuffer(cq,
extent->drw,
CL_FALSE,
0,
extent->size,
extent->hr,
0,NULL,event));
}
void
skc_extent_phr_pdrw_zero(struct skc_extent_phr_pdrw * const extent,
cl_command_queue const cq,
cl_event * const event)
{
if (extent->size == 0)
return;
skc_uint const zero = 0;
cl(EnqueueFillBuffer(cq,
extent->drw,
&zero,
sizeof(zero),
0,
extent->size,
0,NULL,event));
}
//
// EPHEMERAL SMALL EXTENTS BACKING ATOMICS
//
void
skc_extent_thr_tdrw_alloc(struct skc_runtime * const runtime,
struct skc_extent_thr_tdrw * const extent,
size_t const size)
{
extent->size = size;
extent->hr = skc_runtime_host_temp_alloc(runtime,
SKC_MEM_FLAGS_READ_WRITE,
size,&extent->id.hr,NULL);
extent->drw = skc_runtime_device_temp_alloc(runtime,
CL_MEM_READ_WRITE,
size,
&extent->id.drw,
NULL);
}
void
skc_extent_thr_tdrw_free(struct skc_runtime * const runtime,
struct skc_extent_thr_tdrw * const extent)
{
skc_runtime_host_temp_free(runtime,extent->hr,extent->id.hr);
skc_runtime_device_temp_free(runtime,extent->drw,extent->id.drw);
}
void
skc_extent_thr_tdrw_read(struct skc_extent_thr_tdrw * const extent,
cl_command_queue const cq,
cl_event * const event)
{
if (extent->size == 0)
return;
cl(EnqueueReadBuffer(cq,
extent->drw,
CL_FALSE,
0,
extent->size,
extent->hr,
0,NULL,event));
}
void
skc_extent_thr_tdrw_zero(struct skc_extent_thr_tdrw * const extent,
cl_command_queue const cq,
cl_event * const event)
{
if (extent->size == 0)
return;
skc_uint const zero = 0;
cl(EnqueueFillBuffer(cq,
extent->drw,
&zero,
sizeof(zero),
0,
extent->size,
0,NULL,event));
}
//
// DURABLE W/1 HOST RING WITH AN EPHEMERAL R/N DEVICE SNAPSHOT
//
void
skc_extent_phw1g_tdrNs_alloc(struct skc_runtime * const runtime,
struct skc_extent_phw1g_tdrNs * const extent,
size_t const size)
{
extent->hw1 = skc_runtime_host_perm_alloc(runtime,SKC_MEM_FLAGS_WRITE_ONLY,size);
}
void
skc_extent_phw1g_tdrNs_free(struct skc_runtime * const runtime,
struct skc_extent_phw1g_tdrNs * const extent)
{
skc_runtime_host_perm_free(runtime,extent->hw1);
}
void
skc_extent_phw1g_tdrNs_snap_init(struct skc_runtime * const runtime,
struct skc_extent_ring * const ring,
struct skc_extent_phw1g_tdrNs_snap * const snap)
{
snap->snap = skc_extent_ring_snap_alloc(runtime,ring);
}
void
skc_extent_phw1g_tdrNs_snap_alloc(struct skc_runtime * const runtime,
struct skc_extent_phw1g_tdrNs * const extent,
struct skc_extent_phw1g_tdrNs_snap * const snap,
cl_command_queue const cq,
cl_event * const event)
{
struct skc_extent_ring const * const ring = snap->snap->ring;
skc_uint const count = skc_extent_ring_snap_count(snap->snap);
size_t const size = count * ring->size.elem;
snap->drN = skc_runtime_device_temp_alloc(runtime,
CL_MEM_READ_ONLY | CL_MEM_HOST_WRITE_ONLY,
size,&snap->id,NULL);
if (count == 0)
return;
// possibly two copies
skc_uint const index_lo = snap->snap->reads & ring->size.mask;
skc_uint const count_max = ring->size.pow2 - index_lo;
skc_uint const count_lo = min(count_max,count);
size_t const bytes_lo = count_lo * ring->size.elem;
if (count > count_max)
{
skc_uint const bytes_hi = (count - count_max) * ring->size.elem;
cl(EnqueueWriteBuffer(cq,
snap->drN,
CL_FALSE,
bytes_lo,
bytes_hi,
extent->hw1, // offset_hi = 0
0,NULL,NULL));
}
size_t const offset_lo = index_lo * ring->size.elem;
cl(EnqueueWriteBuffer(cq,
snap->drN,
CL_FALSE,
0,
bytes_lo,
(skc_uchar*)extent->hw1 + offset_lo,
0,NULL,event));
}
void
skc_extent_phw1g_tdrNs_snap_free(struct skc_runtime * const runtime,
struct skc_extent_phw1g_tdrNs_snap * const snap)
{
skc_runtime_device_temp_free(runtime,snap->drN,snap->id);
skc_extent_ring_snap_free(runtime,snap->snap);
}
//
// DURABLE R/W HOST RING WITH AN EPHEMERAL R/N DEVICE SNAPSHOT
//
void
skc_extent_phrwg_tdrNs_alloc(struct skc_runtime * const runtime,
struct skc_extent_phrwg_tdrNs * const extent,
size_t const size)
{
extent->hrw = skc_runtime_host_perm_alloc(runtime,SKC_MEM_FLAGS_READ_WRITE,size); // WRITE-ONCE
}
void
skc_extent_phrwg_tdrNs_free(struct skc_runtime * const runtime,
struct skc_extent_phrwg_tdrNs * const extent)
{
skc_runtime_host_perm_free(runtime,extent->hrw);
}
void
skc_extent_phrwg_tdrNs_snap_init(struct skc_runtime * const runtime,
struct skc_extent_ring * const ring,
struct skc_extent_phrwg_tdrNs_snap * const snap)
{
snap->snap = skc_extent_ring_snap_alloc(runtime,ring);
}
void
skc_extent_phrwg_tdrNs_snap_alloc(struct skc_runtime * const runtime,
struct skc_extent_phrwg_tdrNs * const extent,
struct skc_extent_phrwg_tdrNs_snap * const snap,
cl_command_queue const cq,
cl_event * const event)
{
struct skc_extent_ring const * const ring = snap->snap->ring;
skc_uint const count = skc_extent_ring_snap_count(snap->snap);
size_t const size = count * ring->size.elem;
snap->drN = skc_runtime_device_temp_alloc(runtime,
CL_MEM_READ_ONLY | CL_MEM_HOST_WRITE_ONLY,
size,&snap->id,NULL);
if (count == 0)
return;
// possibly two copies
skc_uint const index_lo = snap->snap->reads & ring->size.mask;
skc_uint const count_max = ring->size.pow2 - index_lo;
skc_uint const count_lo = min(count_max,count);
size_t const bytes_lo = count_lo * ring->size.elem;
if (count > count_max)
{
skc_uint const count_hi = count - count_max;
skc_uint const bytes_hi = count_hi * ring->size.elem;
cl(EnqueueWriteBuffer(cq,
snap->drN,
CL_FALSE,
bytes_lo,
bytes_hi,
extent->hrw, // offset_hi = 0
0,NULL,NULL));
}
size_t offset_lo = index_lo * ring->size.elem;
cl(EnqueueWriteBuffer(cq,
snap->drN,
CL_FALSE,
0,
bytes_lo,
(skc_uchar*)extent->hrw + offset_lo,
0,NULL,event));
}
void
skc_extent_phrwg_tdrNs_snap_free(struct skc_runtime * const runtime,
struct skc_extent_phrwg_tdrNs_snap * const snap)
{
skc_runtime_device_temp_free(runtime,snap->drN,snap->id);
skc_extent_ring_snap_free(runtime,snap->snap);
}
//
// DURABLE HOST R/W RING WITH AN EPHEMERAL HOST R/1 SNAPSHOT
//
// Note that because the ring and snapshot are both in host memory and
// the snapshot blocks progress until freed we can simply point the
// fake ephemeral snapshot at the ring's durable extent.
//
void
skc_extent_phrwg_thr1s_alloc(struct skc_runtime * const runtime,
struct skc_extent_phrwg_thr1s * const extent,
size_t const size)
{
extent->hrw = skc_runtime_host_perm_alloc(runtime,SKC_MEM_FLAGS_READ_WRITE,size); // WRITE-ONCE
}
void
skc_extent_phrwg_thr1s_free(struct skc_runtime * const runtime,
struct skc_extent_phrwg_thr1s * const extent)
{
skc_runtime_host_perm_free(runtime,extent->hrw);
}
void
skc_extent_phrwg_thr1s_snap_init(struct skc_runtime * const runtime,
struct skc_extent_ring * const ring,
struct skc_extent_phrwg_thr1s_snap * const snap)
{
snap->snap = skc_extent_ring_snap_alloc(runtime,ring);
}
void
skc_extent_phrwg_thr1s_snap_alloc(struct skc_runtime * const runtime,
struct skc_extent_phrwg_thr1s * const extent,
struct skc_extent_phrwg_thr1s_snap * const snap)
{
struct skc_extent_ring const * const ring = snap->snap->ring;
skc_uint const count = skc_extent_ring_snap_count(snap->snap);
skc_uint const index_lo = snap->snap->reads & ring->size.mask;
skc_uint const count_max = ring->size.pow2 - index_lo;
snap->count.lo = min(count_max,count);
snap->hr1.lo = (skc_uchar*)extent->hrw + (index_lo * ring->size.elem);
if (count > count_max)
{
snap->count.hi = count - count_max;
snap->hr1.hi = extent->hrw;
}
else
{
snap->count.hi = 0;
snap->hr1.hi = NULL;
}
}
void
skc_extent_phrwg_thr1s_snap_free(struct skc_runtime * const runtime,
struct skc_extent_phrwg_thr1s_snap * const snap)
{
skc_extent_ring_snap_free(runtime,snap->snap);
}
//
//
//
|
