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Properly assign to packet header (PR hsa/70394)

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* plugin/plugin-hsa.c (packet_store_release): New function
	that is taken from the HSA runtime manual.
	(GOMP_OFFLOAD_run): Use the function.

From-SVN: r234454
This commit is contained in:
Martin Liska 2016-03-24 14:04:12 +01:00 committed by Martin Liska
parent ed87de5583
commit f9c8babbab
2 changed files with 17 additions and 2 deletions
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6
libgomp/ChangeLog
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@ -1,3 +1,9 @@
2016-03-24 Martin Liska <mliska@suse.cz>
* plugin/plugin-hsa.c (packet_store_release): New function
that is taken from the HSA runtime manual.
(GOMP_OFFLOAD_run): Use the function.
2016-03-23 Jakub Jelinek <jakub@redhat.com> 2016-03-23 Jakub Jelinek <jakub@redhat.com>
PR c++/70376 PR c++/70376

13
libgomp/plugin/plugin-hsa.c
View File

@ -1185,6 +1185,14 @@ failure:
return false; return false;
} }
/* Atomically store pair of uint16_t values (HEADER and REST) to a PACKET. */
void
packet_store_release (uint32_t* packet, uint16_t header, uint16_t rest)
{
__atomic_store_n (packet, header | (rest << 16), __ATOMIC_RELEASE);
}
/* Part of the libgomp plugin interface. Run a kernel on device N and pass it /* Part of the libgomp plugin interface. Run a kernel on device N and pass it
an array of pointers in VARS as a parameter. The kernel is identified by an array of pointers in VARS as a parameter. The kernel is identified by
FN_PTR which must point to a kernel_info structure. */ FN_PTR which must point to a kernel_info structure. */
@ -1232,7 +1240,6 @@ GOMP_OFFLOAD_run (int n, void *fn_ptr, void *vars, void **args)
+ index % agent->command_q->size; + index % agent->command_q->size;
memset (((uint8_t *) packet) + 4, 0, sizeof (*packet) - 4); memset (((uint8_t *) packet) + 4, 0, sizeof (*packet) - 4);
packet->setup |= (uint16_t) 1 << HSA_KERNEL_DISPATCH_PACKET_SETUP_DIMENSIONS;
packet->grid_size_x = kla->gdims[0]; packet->grid_size_x = kla->gdims[0];
uint32_t wgs = kla->wdims[0]; uint32_t wgs = kla->wdims[0];
if (wgs == 0) if (wgs == 0)
@ -1275,7 +1282,9 @@ GOMP_OFFLOAD_run (int n, void *fn_ptr, void *vars, void **args)
HSA_DEBUG ("Going to dispatch kernel %s\n", kernel->name); HSA_DEBUG ("Going to dispatch kernel %s\n", kernel->name);
__atomic_store_n ((uint16_t *) (&packet->header), header, __ATOMIC_RELEASE); packet_store_release ((uint32_t *) packet, header,
1 << HSA_KERNEL_DISPATCH_PACKET_SETUP_DIMENSIONS);
hsa_signal_store_release (agent->command_q->doorbell_signal, index); hsa_signal_store_release (agent->command_q->doorbell_signal, index);
/* TODO: GPU agents in Carrizo APUs cannot properly update L2 cache for /* TODO: GPU agents in Carrizo APUs cannot properly update L2 cache for