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/*
* Copyright (C) 2011-2012 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "mali_kernel_common.h"
#include "mali_cluster.h"
#include "mali_osk.h"
#include "mali_group.h"
#include "mali_l2_cache.h"
#include "mali_scheduler.h"
static struct mali_cluster *mali_global_clusters[MALI_MAX_NUMBER_OF_CLUSTERS] = { NULL, NULL, NULL };
static u32 mali_global_num_clusters = 0;
/**
* The structure represents a render cluster
* A render cluster is defined by all the cores that share the same Mali L2 cache
*/
struct mali_cluster
{
struct mali_l2_cache_core *l2;
u32 number_of_groups;
struct mali_group* groups[MALI_MAX_NUMBER_OF_GROUPS_PER_CLUSTER];
u32 last_invalidated_id;
mali_bool power_is_enabled;
};
struct mali_cluster *mali_cluster_create(struct mali_l2_cache_core *l2_cache)
{
struct mali_cluster *cluster = NULL;
if (mali_global_num_clusters >= MALI_MAX_NUMBER_OF_CLUSTERS)
{
MALI_PRINT_ERROR(("Mali cluster: Too many cluster objects created\n"));
return NULL;
}
cluster = _mali_osk_malloc(sizeof(struct mali_cluster));
if (NULL != cluster)
{
_mali_osk_memset(cluster, 0, sizeof(struct mali_cluster));
cluster->l2 = l2_cache; /* This cluster now owns this L2 cache object */
cluster->last_invalidated_id = 0;
cluster->power_is_enabled = MALI_TRUE;
mali_global_clusters[mali_global_num_clusters] = cluster;
mali_global_num_clusters++;
return cluster;
}
return NULL;
}
void mali_cluster_power_is_enabled_set(struct mali_cluster * cluster, mali_bool power_is_enabled)
{
cluster->power_is_enabled = power_is_enabled;
}
mali_bool mali_cluster_power_is_enabled_get(struct mali_cluster * cluster)
{
return cluster->power_is_enabled;
}
void mali_cluster_add_group(struct mali_cluster *cluster, struct mali_group *group)
{
MALI_DEBUG_ASSERT_POINTER(cluster);
if (cluster->number_of_groups < MALI_MAX_NUMBER_OF_GROUPS_PER_CLUSTER)
{
/* This cluster now owns the group object */
cluster->groups[cluster->number_of_groups] = group;
cluster->number_of_groups++;
}
}
void mali_cluster_delete(struct mali_cluster *cluster)
{
u32 i;
MALI_DEBUG_ASSERT_POINTER(cluster);
/* Free all the resources we own */
for (i = 0; i < cluster->number_of_groups; i++)
{
mali_group_delete(cluster->groups[i]);
}
if (NULL != cluster->l2)
{
mali_l2_cache_delete(cluster->l2);
}
for (i = 0; i < mali_global_num_clusters; i++)
{
if (mali_global_clusters[i] == cluster)
{
mali_global_clusters[i] = NULL;
mali_global_num_clusters--;
break;
}
}
_mali_osk_free(cluster);
}
void mali_cluster_reset(struct mali_cluster *cluster)
{
u32 i;
MALI_DEBUG_ASSERT_POINTER(cluster);
/* Free all the resources we own */
for (i = 0; i < cluster->number_of_groups; i++)
{
struct mali_group *group = cluster->groups[i];
mali_group_reset(group);
}
if (NULL != cluster->l2)
{
mali_l2_cache_reset(cluster->l2);
}
}
struct mali_l2_cache_core* mali_cluster_get_l2_cache_core(struct mali_cluster *cluster)
{
MALI_DEBUG_ASSERT_POINTER(cluster);
return cluster->l2;
}
struct mali_group *mali_cluster_get_group(struct mali_cluster *cluster, u32 index)
{
MALI_DEBUG_ASSERT_POINTER(cluster);
if (index < cluster->number_of_groups)
{
return cluster->groups[index];
}
return NULL;
}
struct mali_cluster *mali_cluster_get_global_cluster(u32 index)
{
if (MALI_MAX_NUMBER_OF_CLUSTERS > index)
{
return mali_global_clusters[index];
}
return NULL;
}
u32 mali_cluster_get_glob_num_clusters(void)
{
return mali_global_num_clusters;
}
mali_bool mali_cluster_l2_cache_invalidate_all(struct mali_cluster *cluster, u32 id)
{
MALI_DEBUG_ASSERT_POINTER(cluster);
if (NULL != cluster->l2)
{
/* If the last cache invalidation was done by a job with a higher id we
* don't have to flush. Since user space will store jobs w/ their
* corresponding memory in sequence (first job #0, then job #1, ...),
* we don't have to flush for job n-1 if job n has already invalidated
* the cache since we know for sure that job n-1's memory was already
* written when job n was started. */
if (((s32)id) <= ((s32)cluster->last_invalidated_id))
{
return MALI_FALSE;
}
else
{
cluster->last_invalidated_id = mali_scheduler_get_new_id();
}
mali_l2_cache_invalidate_all(cluster->l2);
}
return MALI_TRUE;
}
void mali_cluster_l2_cache_invalidate_all_force(struct mali_cluster *cluster)
{
MALI_DEBUG_ASSERT_POINTER(cluster);
if (NULL != cluster->l2)
{
cluster->last_invalidated_id = mali_scheduler_get_new_id();
mali_l2_cache_invalidate_all(cluster->l2);
}
}
void mali_cluster_invalidate_pages(u32 *pages, u32 num_pages)
{
u32 i;
for (i = 0; i < mali_global_num_clusters; i++)
{
/*additional check for cluster*/
if (MALI_TRUE == mali_l2_cache_lock_power_state(mali_global_clusters[i]->l2))
{
mali_l2_cache_invalidate_pages(mali_global_clusters[i]->l2, pages, num_pages);
}
mali_l2_cache_unlock_power_state(mali_global_clusters[i]->l2);
/*check for failed power locking???*/
}
}
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