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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 <string.h>
// #include "extent.h"
//
// EXTENT TYPES
//
// Classification of operations on allocated GPU memory
//
// h = host
// d = device
//
// c = append using non-atomic incremented count
// x = append using atomically incremented index
// p = allocated from pool of indices
// g = gathered by pull kernel
// s = size is available
//
// w1 = write once
// wN = write many
//
// r1 = read once
// rN = read many
//
// rw = read/write many
//
// host<>device memory model
// +--------------------+--------------------+
// extent type | split | shared | examples
// ---------------------+--------------------+--------------------+--------------------
// | | |
// extent_atomic | device+mapped | device+mapped | atomically op'd device extent + read-only host snapshot
// | | |
// extent_dxrw | device | device | ttsk_array, ttpk_array, ttck_array, *_offsets
// extent_hcw1_dr1 | mapped | mapped | command_queue, buffer
// extent_hcrw | host | host | queue
// | | |
// ---------------------+--------------------+--------------------+--------------------
// | | |
// extent_hcw1_drN | memcpy'd | mapped | stack_transforms, stack_stroke_props
// extent_hgw1_drN | scatter/gather | mapped | layer_props
// | | |
// block_pool_dprw | device | device | ttsb_pool, ttpb_pool
// block_pool_hp_drw | device | device | raster_pool
// | | |
// ---------------------+--------------------+--------------------+--------------------
// | | |
// block_pool_hp_drw | block_pool_hp_drw | block_pool_hp_drw | path_block_pool
// staging buffer | extent_hw_dr | -- |
// | | |
//
//
// HIGH-LEVEL EXTENTS ARE BUILT FROM SIMPLER STRUCTURES
//
//
// COUNTERS FOR POOLS -- TYPICALLY ATOMIC WHEN ON DEVICE
//
union skc_ring
{
skc_uint2 u32v2;
skc_uint u32a2[2];
struct {
skc_uint reads; // number of reads
skc_uint writes; // number of writes
};
};
//
// POOL OF INDICES TO BLOCKS
//
struct skc_pool_h
{
skc_uint * indices;
};
struct skc_pool_d
{
cl_mem * indices; // FIXME -- READ POOL INDICES THROUGH CONSTANT CACHE?
};
//
// LOW-LEVEL EXTENTS -- SIZES ARE STORED ELSEWHERE
//
struct skc_extent_hrw
{
void * hrw; // host pointer to host extent -- read/write
};
struct skc_extent_drw
{
cl_mem drw; // device pointer to device extent -- read/write
};
struct skc_extent_hw_dr
{
void * hw; // host pointer to shared extent -- write-only + write-combined
cl_mem dr; // device pointer to shared extent -- read-only
};
//
//
//
#if 0
static
void *
skc_runtime_svm_alloc(struct skc_runtime_cl * const runtime_cl, size_t const size)
{
return clSVMAlloc(runtime_cl->context,
CL_MEM_READ_WRITE | CL_MEM_SVM_FINE_GRAIN_BUFFER,
size,
0);
}
static
void *
skc_runtime_svm_atomic_alloc(struct skc_runtime_cl * const runtime_cl, size_t const size) // WE DON'T NEED THIS HERE
{
return clSVMAlloc(runtime_cl->context,
CL_MEM_READ_WRITE | CL_MEM_SVM_FINE_GRAIN_BUFFER | CL_MEM_SVM_ATOMICS,
size,
0);
}
static
void
skc_runtime_svm_free(struct skc_runtime_cl * const runtime_cl, void * const buffer)
{
clSVMFree(runtime_cl->context,buffer);
}
#endif
//
//
//
void
skc_command_queue_fill_device(struct skc_command_queue * const cq,
cl_mem buffer,
void const * const pattern,
size_t const pattern_size,
size_t const size);
void *
skc_command_queue_map_wi(struct skc_command_queue * const cq,
cl_mem buffer);
void
skc_command_queue_unmap(struct skc_command_queue * const cq,
cl_mem buffer,
void * const mapped);
void
skc_command_queue_read(struct skc_command_queue * const cq,
cl_mem buffer,
void * const ptr);
//
//
//
struct skc_extent_hrw *
skc_extent_hrw_alloc(struct skc_allocator * const allocator,
size_t const size)
{
struct skc_extent_hrw * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hrw = skc_allocator_alloc_host(allocator,size);
return extent;
}
void
skc_extent_hrw_free(struct skc_allocator * const allocator,
struct skc_extent_hrw * const extent)
{
skc_allocator_free_host(allocator,extent->hrw);
skc_allocator_free_host(allocator,extent);
}
//
//
//
struct skc_extent_drw *
skc_extent_drw_alloc(struct skc_allocator * const allocator,
size_t const size)
{
struct skc_extent_drw * extent;
extent = skc_allocator_alloc_host (allocator,sizeof(*extent));
extent->drw = skc_allocator_alloc_device(allocator,size);
return extent;
}
void
skc_extent_drw_free(struct skc_allocator * const allocator,
struct skc_extent_drw * const extent)
{
skc_allocator_free_device(allocator,extent->drw);
skc_allocator_free_host (allocator,extent);
}
void
skc_extent_drw_fill(struct skc_command_queue * const cq,
struct skc_extent_drw * const extent,
void const * const pattern,
size_t const pattern_size,
size_t const size)
{
skc_command_queue_fill_device(cq,extent->drw,pattern,pattern_size,size);
}
//
// WRITE-COMBINED / WRITE-INVALIDATE
//
struct skc_extent_hw_dr *
skc_extent_hw_dr_alloc(struct skc_allocator * const allocator,
size_t const size)
{
struct skc_extent_hw_dr * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hw = NULL;
extent->dr = skc_allocator_alloc_device_wc(allocator,size); // write-combined mem
return extent;
}
void
skc_extent_hw_dr_free(struct skc_allocator * const allocator,
struct skc_extent_hw_dr * const extent)
{
skc_allocator_free_device(allocator,extent->dr);
skc_allocator_free_host (allocator,extent);
}
void
skc_extent_hw_dr_map(struct skc_command_queue * const cq,
struct skc_extent_hw_dr * const extent)
{
extent->hw = skc_command_queue_map_wi(cq,extent->dr);
}
void
skc_extent_hw_dr_unmap(struct skc_command_queue * const cq,
struct skc_extent_hw_dr * const extent)
{
skc_command_queue_unmap(cq,extent->dr,extent->hw);
}
void
skc_extent_hw_dr_memcpy(struct skc_extent_hw_dr * const extent,
void const * SKC_RESTRICT const src,
size_t const offset,
size_t const size)
{
void * SKC_RESTRICT const dst = (char *)extent->hw + offset;
memcpy(dst,src,size);
}
//
// SNAPSHOT
//
struct skc_extent_hr_drw
{
void * hr; // host pointer to shared extent -- readable snapshot
cl_mem drw; // device pointer to shared extent -- read/write
};
struct skc_extent_hr_drw *
skc_extent_hr_drw_alloc(struct skc_allocator * const allocator,
size_t const size)
{
struct skc_extent_hr_drw * extent;
extent = skc_allocator_alloc_host (allocator,sizeof(*extent));
extent->hr = skc_allocator_alloc_host (allocator,size);
extent->drw = skc_allocator_alloc_device(allocator,size);
return extent;
}
void
skc_extent_hr_drw_free(struct skc_allocator * const allocator,
struct skc_extent_hr_drw * const extent)
{
skc_allocator_free_host (allocator,extent->hr);
skc_allocator_free_device(allocator,extent->drw);
skc_allocator_free_host (allocator,extent);
}
void
skc_extent_hr_drw_snap(struct skc_command_queue * const cq,
struct skc_extent_hr_drw * const extent,
size_t const size)
{
skc_command_queue_read(cq,extent->drw,extent->hr);
}
void
skc_extent_hr_drw_fill(struct skc_command_queue * const cq,
struct skc_extent_hr_drw * const extent,
void const * const pattern,
size_t const pattern_size,
size_t const size)
{
skc_command_queue_fill_device(cq,extent->drw,pattern,pattern_size,size);
}
//
//
//
struct skc_extent_atomic
{
struct skc_extent_hr_drw * hr_drw;
size_t size; // typically a very small extent
};
//
//
//
struct skc_extent_atomic *
skc_extent_atomic_alloc(struct skc_allocator * const allocator,
size_t const size)
{
struct skc_extent_atomic * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hr_drw = skc_extent_hr_drw_alloc(allocator,size);
extent->size = size;
return extent;
}
void
skc_extent_atomic_free(struct skc_allocator * const allocator,
struct skc_extent_atomic * const extent)
{
skc_extent_hr_drw_free (allocator,extent->hr_drw);
skc_allocator_free_host(allocator,extent);
}
void
skc_extent_atomic_snap(struct skc_command_queue * const cq,
struct skc_extent_atomic const * const extent)
{
skc_extent_hr_drw_snap(cq,extent->hr_drw,extent->size);
}
void
skc_extent_atomic_zero(struct skc_command_queue * const cq,
struct skc_extent_atomic const * const extent)
{
skc_uint const zero = 0;
skc_extent_hr_drw_fill(cq,extent->hr_drw,&zero,sizeof(zero),extent->size);
}
//
//
//
struct skc_extent_dxrw
{
struct skc_extent_drw * drw;
size_t elem_size;
skc_uint elem_count;
#if 0 // SKC_EXTENT_ATOMIC_IS_IGNORED
struct skc_extent_atomic * atomic;
size_t atomic_offset;
#endif
};
//
//
//
struct skc_extent_dxrw *
skc_extent_dxrw_alloc(struct skc_allocator * const allocator,
size_t const elem_size,
skc_uint const elem_count,
struct skc_extent_atomic * const atomic,
size_t const atomic_offset)
{
struct skc_extent_dxrw * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->drw = skc_extent_drw_alloc(allocator,elem_size * elem_count);
extent->elem_size = elem_size;
extent->elem_count = elem_count;
//
// note that passing in the atomic and its member has no real use at
// this point since the current programming style requires passing
// in the atomic extent -- which may have multiple members -- to the
// compute kernel
//
#if 0 // SKC_EXTENT_ATOMIC_IS_IGNORED
extent->atomic = atomic;
extent->atomic_offset = atomic_offset;
#endif
return extent;
}
void
skc_extent_dxrw_free(struct skc_allocator * const allocator,
struct skc_extent_dxrw * const extent)
{
skc_extent_drw_free (allocator,extent->drw);
skc_allocator_free_host(allocator,extent);
}
//
//
//
struct skc_extent_hcrw
{
struct skc_extent_hrw * hrw;
size_t elem_size;
skc_uint elem_count;
skc_uint counter;
};
//
//
//
struct skc_extent_hcrw *
skc_extent_hcrw_alloc(struct skc_allocator * const allocator,
size_t const elem_size,
skc_uint const elem_count)
{
struct skc_extent_hcrw * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hrw = skc_extent_hrw_alloc(allocator,elem_size * elem_count);
extent->elem_size = elem_size;
extent->elem_count = elem_count;
extent->counter = 0;
return extent;
}
void
skc_extent_hcrw_free(struct skc_allocator * const allocator,
struct skc_extent_hcrw * const extent)
{
skc_extent_hrw_free (allocator,extent->hrw);
skc_allocator_free_host(allocator,extent);
}
void
skc_extent_hcrw_reset(struct skc_extent_hcrw * const extent)
{
extent->counter = 0;
}
skc_bool
skc_extent_hcrw_is_full(struct skc_extent_hcrw const * const extent)
{
return (extent->counter == extent->elem_count);
}
//
//
//
struct skc_extent_hcw1_dr1
{
struct skc_extent_hw_dr * hw_dr; // mapped memory
size_t elem_size;
skc_uint elem_count;
skc_uint counter;
};
//
//
//
struct skc_extent_hcw1_dr1 *
skc_extent_hcw1_dr1_alloc(struct skc_allocator * const allocator,
skc_uint const elem_size,
skc_uint const elem_count)
{
struct skc_extent_hcw1_dr1 * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hw_dr = skc_extent_hw_dr_alloc(allocator,elem_size * elem_count);
extent->elem_size = elem_size;
extent->elem_count = elem_count;
extent->counter = 0;
return extent;
}
void
skc_extent_hcw1_dr1_free(struct skc_allocator * const allocator,
struct skc_extent_hcw1_dr1 * const extent)
{
skc_extent_hw_dr_free (allocator,extent->hw_dr);
skc_allocator_free_host(allocator,extent);
}
void
skc_extent_hcw1_dr1_map(struct skc_command_queue * const cq,
struct skc_extent_hcw1_dr1 * const extent)
{
skc_extent_hw_dr_map(cq,extent->hw_dr);
}
void
skc_extent_hcw1_dr1_unmap(struct skc_command_queue * const cq,
struct skc_extent_hcw1_dr1 * const extent)
{
skc_extent_hw_dr_unmap(cq,extent->hw_dr);
}
void
skc_extent_hcw1_dr1_reset(struct skc_extent_hcw1_dr1 * const extent)
{
extent->counter = 0;
}
skc_bool
skc_extent_hcw1_dr1_is_full(struct skc_extent_hcw1_dr1 const * const extent)
{
return (extent->counter == extent->elem_count);
}
skc_uint
skc_extent_hcw1_dr1_rem(struct skc_extent_hcw1_dr1 * const extent)
{
return extent->elem_count - extent->counter;
}
void
skc_extent_hcw1_dr1_append(struct skc_extent_hcw1_dr1 * const extent,
void const * SKC_RESTRICT const elem_ptr,
skc_uint const elem_count_clamped)
{
skc_extent_hw_dr_memcpy(extent->hw_dr,
elem_ptr,
extent->elem_size * extent->counter,
extent->elem_size * elem_count_clamped);
}
//
//
//
struct skc_extent_hcw1_drN_unified
{
struct skc_extent_hw_dr * hw_dr; // mapped memory
size_t elem_size;
skc_uint elem_count;
skc_uint counter;
};
//
//
//
struct skc_extent_hcw1_drN_unified *
skc_extent_hcw1_drN_unified_alloc(struct skc_allocator * const allocator,
skc_uint const elem_size,
skc_uint const elem_count)
{
struct skc_extent_hcw1_drN_unified * extent;
extent = skc_allocator_alloc_host(allocator,sizeof(*extent));
extent->hw_dr = skc_extent_hw_dr_alloc(allocator,elem_size * elem_count);
extent->elem_size = elem_size;
extent->elem_count = elem_count;
extent->counter = 0;
return extent;
}
void
skc_extent_hcw1_drN_unified_free(struct skc_allocator * const allocator,
struct skc_extent_hcw1_drN_unified * const extent)
{
skc_extent_hw_dr_free (allocator,extent->hw_dr);
skc_allocator_free_host(allocator,extent);
}
void
skc_extent_hcw1_drN_unified_map(struct skc_command_queue * const cq,
struct skc_extent_hcw1_drN_unified * const extent)
{
skc_extent_hw_dr_map(cq,extent->hw_dr);
}
void
skc_extent_hcw1_drN_unified_unmap(struct skc_command_queue * const cq,
struct skc_extent_hcw1_drN_unified * const extent)
{
skc_extent_hw_dr_unmap(cq,extent->hw_dr);
}
void
skc_extent_hcw1_drN_unified_reset(struct skc_extent_hcw1_drN_unified * const extent)
{
extent->counter = 0;
}
skc_bool
skc_extent_hcw1_drN_unified_is_full(struct skc_extent_hcw1_drN_unified const * const extent)
{
return (extent->counter == extent->elem_count);
}
skc_uint
skc_extent_hcw1_drN_unified_rem(struct skc_extent_hcw1_drN_unified * const extent)
{
return extent->elem_count - extent->counter;
}
void
skc_extent_hcw1_drN_unified_append(struct skc_extent_hcw1_drN_unified * const extent,
void const * SKC_RESTRICT const elem_ptr,
skc_uint const elem_count_clamped)
{
skc_extent_hw_dr_memcpy(extent->hw_dr,
elem_ptr,
extent->elem_size * extent->counter,
extent->elem_size * elem_count_clamped);
}
//
//
//
struct skc_id_pool_hp *
skc_id_pool_hp_alloc(struct skc_allocator * const allocator,
skc_uint const count)
{
return NULL;
}
void
skc_id_pool_hp_free(struct skc_allocator * const allocator,
struct skc_id_pool_hp * const extent)
{
;
}
void
skc_id_pool_hp_acquire(struct skc_id_pool_hp * const extent,
skc_uint * const id)
{
;
}
void
skc_id_pool_hp_release_1(struct skc_id_pool_hp * const extent,
skc_uint const id)
{
;
}
void
skc_id_pool_hp_release_n(struct skc_id_pool_hp * const extent,
skc_uint const * const id,
skc_uint const count)
{
;
}
//
//
//
struct skc_block_pool_dprw *
skc_block_pool_dprw_alloc(struct skc_allocator * const allocator,
union skc_ring * const ring_d,
skc_uint const block_size,
skc_uint const block_count)
{
return NULL;
}
void
skc_block_pool_dprw_free(struct skc_allocator * const allocator,
struct skc_block_pool_dprw * const extent)
{
;
}
//
//
//
struct skc_extent_hgw1_drN *
skc_extent_hgw1_drN_alloc(struct skc_allocator * const allocator,
skc_uint const elem_size,
skc_uint const elem_count)
{
return NULL;
}
void
skc_extent_hgw1_drN_free(struct skc_allocator * const allocator,
struct skc_extent_hgw1_drN * const extent)
{
;
}
void
skc_extent_hgw1_drN_reset(struct skc_extent_hgw1_drN * const extent)
{
;
}
void
skc_extent_hgw1_drN_snap(struct skc_command_queue * const cq,
struct skc_extent_hgw1_drN const * const extent)
{
;
}
//
//
//
#if 0
//
//
//
struct skc_block_pool_hp_drw *
skc_block_pool_hp_drw_alloc(struct skc_allocator * const allocator,
skc_uint const elem_size,
skc_uint const elem_count)
{
return NULL;
}
void
skc_block_pool_hp_drw_free(struct skc_allocator * const allocator,
struct skc_block_pool_hp_drw * const extent)
{
;
}
//
//
//
#endif
//
//
//
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