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libgomp/gcn: fix/improve struct output 

output.printf_data.(value union) contains text[128], which has the size
of 128 bytes, sufficient for 16 uint64_t variables; hence value_u64[2]
could be extended to value_u64[6] - sufficient for all required arguments
to gomp_target_rev.  Additionally, next_output.printf_data.(msg union)
contained msg_u64 which then is no longer needed and also caused 32bit
vs 64bit alignment issues.

libgomp/
	* config/gcn/libgomp-gcn.h (struct output):
	Remove 'msg_u64' from the union, change
	value_u64[2] to value_u64[6].
	* config/gcn/target.c (GOMP_target_ext): Update accordingly.
	* plugin/plugin-gcn.c (process_reverse_offload, console_output):
	Likewise.
This commit is contained in:
Tobias Burnus 2022-11-21 15:22:35 +01:00
parent 711f56ad90
commit 6edcb5dc42
3 changed files with 15 additions and 21 deletions
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7
libgomp/config/gcn/libgomp-gcn.h
View File

@ -37,16 +37,13 @@ struct output
unsigned int next_output;
struct printf_data {
int written;
union {
char msg[128];
uint64_t msg_u64[2];
};
char msg[128];
int type;
union {
int64_t ivalue;
double dvalue;
char text[128];
uint64_t value_u64[2];
uint64_t value_u64[16];
};
} queue[1024];
unsigned int consumed;

12
libgomp/config/gcn/target.c
View File

@ -102,12 +102,12 @@ GOMP_target_ext (int device, void (*fn) (void *), size_t mapnum,
asm ("s_sleep 64");
unsigned int slot = index % 1024;
uint64_t addrs_sizes_kind[3] = {(uint64_t) hostaddrs, (uint64_t) sizes,
(uint64_t) kinds};
data->queue[slot].msg_u64[0] = (uint64_t) fn;
data->queue[slot].msg_u64[1] = (uint64_t) mapnum;
data->queue[slot].value_u64[0] = (uint64_t) &addrs_sizes_kind[0];
data->queue[slot].value_u64[1] = (uint64_t) GOMP_ADDITIONAL_ICVS.device_num;
data->queue[slot].value_u64[0] = (uint64_t) fn;
data->queue[slot].value_u64[1] = (uint64_t) mapnum;
data->queue[slot].value_u64[2] = (uint64_t) hostaddrs;
data->queue[slot].value_u64[3] = (uint64_t) sizes;
data->queue[slot].value_u64[4] = (uint64_t) kinds;
data->queue[slot].value_u64[5] = (uint64_t) GOMP_ADDITIONAL_ICVS.device_num;
data->queue[slot].type = 4; /* Reverse offload. */
__atomic_store_n (&data->queue[slot].written, 1, __ATOMIC_RELEASE);

17
libgomp/plugin/plugin-gcn.c
View File

@ -1919,16 +1919,12 @@ create_kernel_dispatch (struct kernel_info *kernel, int num_teams)
}
static void
process_reverse_offload (uint64_t fn, uint64_t mapnum, uint64_t rev_data,
uint64_t dev_num64)
process_reverse_offload (uint64_t fn, uint64_t mapnum, uint64_t hostaddrs,
uint64_t sizes, uint64_t kinds, uint64_t dev_num64)
{
int dev_num = dev_num64;
uint64_t addrs_sizes_kinds[3];
GOMP_OFFLOAD_host2dev (dev_num, &addrs_sizes_kinds, (void *) rev_data,
sizeof (addrs_sizes_kinds));
GOMP_PLUGIN_target_rev (fn, mapnum, addrs_sizes_kinds[0],
addrs_sizes_kinds[1], addrs_sizes_kinds[2],
dev_num, NULL, NULL, NULL);
GOMP_PLUGIN_target_rev (fn, mapnum, hostaddrs, sizes, kinds, dev_num,
NULL, NULL, NULL);
}
/* Output any data written to console output from the kernel. It is expected
@ -1976,8 +1972,9 @@ console_output (struct kernel_info *kernel, struct kernargs *kernargs,
case 2: printf ("%.128s%.128s\n", data->msg, data->text); break;
case 3: printf ("%.128s%.128s", data->msg, data->text); break;
case 4:
process_reverse_offload (data->msg_u64[0], data->msg_u64[1],
data->value_u64[0],data->value_u64[1]);
process_reverse_offload (data->value_u64[0], data->value_u64[1],
data->value_u64[2], data->value_u64[3],
data->value_u64[4], data->value_u64[5]);
break;
default: printf ("GCN print buffer error!\n"); break;
}