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drm/amdkfd: Fix sibling_map[] size

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Change kfd_cache_properties.sibling_map[256] to
kfd_cache_properties.sibling_map[32]. Since, CRAT uses bitmap for
sibling_map, it is more efficient to use bitmap in the kfd structure
also.

Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Harish Kasiviswanathan 2017-12-08 23:08:57 -05:00 committed by Oded Gabbay
parent 175b926335
commit bc0c75a367
2 changed files with 14 additions and 10 deletions
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20
drivers/gpu/drm/amd/amdkfd/kfd_topology.c
View File

@ -263,7 +263,7 @@ static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr,
char *buffer)
{
ssize_t ret;
uint32_t i;
uint32_t i, j;
struct kfd_cache_properties *cache;
/* Making sure that the buffer is an empty string */
@ -281,12 +281,18 @@ static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr,
sysfs_show_32bit_prop(buffer, "latency", cache->cache_latency);
sysfs_show_32bit_prop(buffer, "type", cache->cache_type);
snprintf(buffer, PAGE_SIZE, "%ssibling_map ", buffer);
for (i = 0; i < KFD_TOPOLOGY_CPU_SIBLINGS; i++)
ret = snprintf(buffer, PAGE_SIZE, "%s%d%s",
buffer, cache->sibling_map[i],
(i == KFD_TOPOLOGY_CPU_SIBLINGS-1) ?
"\n" : ",");
for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++)
for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) {
/* Check each bit */
if (cache->sibling_map[i] & (1 << j))
ret = snprintf(buffer, PAGE_SIZE,
"%s%d%s", buffer, 1, ",");
else
ret = snprintf(buffer, PAGE_SIZE,
"%s%d%s", buffer, 0, ",");
}
/* Replace the last "," with end of line */
*(buffer + strlen(buffer) - 1) = 0xA;
return ret;
}

4
drivers/gpu/drm/amd/amdkfd/kfd_topology.h
View File

@ -91,8 +91,6 @@ struct kfd_mem_properties {
struct attribute attr;
};
#define KFD_TOPOLOGY_CPU_SIBLINGS 256
#define HSA_CACHE_TYPE_DATA 0x00000001
#define HSA_CACHE_TYPE_INSTRUCTION 0x00000002
#define HSA_CACHE_TYPE_CPU 0x00000004
@ -109,7 +107,7 @@ struct kfd_cache_properties {
uint32_t cache_assoc;
uint32_t cache_latency;
uint32_t cache_type;
uint8_t sibling_map[KFD_TOPOLOGY_CPU_SIBLINGS];
uint8_t sibling_map[CRAT_SIBLINGMAP_SIZE];
struct kobject *kobj;
struct attribute attr;
};