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/*
* Copyright (C) 2012-2015 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_broadcast.h"
#include "mali_kernel_common.h"
#include "mali_osk.h"
#define MALI_BROADCAST_REGISTER_SIZE 0x1000
#define MALI_BROADCAST_REG_BROADCAST_MASK 0x0
#define MALI_BROADCAST_REG_INTERRUPT_MASK 0x4
struct mali_bcast_unit {
struct mali_hw_core hw_core;
u32 current_mask;
};
struct mali_bcast_unit *mali_bcast_unit_create(const _mali_osk_resource_t *resource)
{
struct mali_bcast_unit *bcast_unit = NULL;
MALI_DEBUG_ASSERT_POINTER(resource);
MALI_DEBUG_PRINT(2, ("Broadcast: Creating Mali Broadcast unit: %s\n",
resource->description));
bcast_unit = _mali_osk_malloc(sizeof(struct mali_bcast_unit));
if (NULL == bcast_unit) {
MALI_PRINT_ERROR(("Broadcast: Failed to allocate memory for Broadcast unit\n"));
return NULL;
}
if (_MALI_OSK_ERR_OK == mali_hw_core_create(&bcast_unit->hw_core,
resource, MALI_BROADCAST_REGISTER_SIZE)) {
bcast_unit->current_mask = 0;
mali_bcast_reset(bcast_unit);
return bcast_unit;
} else {
MALI_PRINT_ERROR(("Broadcast: Failed map broadcast unit\n"));
}
_mali_osk_free(bcast_unit);
return NULL;
}
void mali_bcast_unit_delete(struct mali_bcast_unit *bcast_unit)
{
MALI_DEBUG_ASSERT_POINTER(bcast_unit);
mali_hw_core_delete(&bcast_unit->hw_core);
_mali_osk_free(bcast_unit);
}
/* Call this function to add the @group's id into bcast mask
* Note: redundant calling this function with same @group
* doesn't make any difference as calling it once
*/
void mali_bcast_add_group(struct mali_bcast_unit *bcast_unit,
struct mali_group *group)
{
u32 bcast_id;
u32 broadcast_mask;
MALI_DEBUG_ASSERT_POINTER(bcast_unit);
MALI_DEBUG_ASSERT_POINTER(group);
bcast_id = mali_pp_core_get_bcast_id(mali_group_get_pp_core(group));
broadcast_mask = bcast_unit->current_mask;
broadcast_mask |= (bcast_id); /* add PP core to broadcast */
broadcast_mask |= (bcast_id << 16); /* add MMU to broadcast */
/* store mask so we can restore on reset */
bcast_unit->current_mask = broadcast_mask;
}
/* Call this function to remove @group's id from bcast mask
* Note: redundant calling this function with same @group
* doesn't make any difference as calling it once
*/
void mali_bcast_remove_group(struct mali_bcast_unit *bcast_unit,
struct mali_group *group)
{
u32 bcast_id;
u32 broadcast_mask;
MALI_DEBUG_ASSERT_POINTER(bcast_unit);
MALI_DEBUG_ASSERT_POINTER(group);
bcast_id = mali_pp_core_get_bcast_id(mali_group_get_pp_core(group));
broadcast_mask = bcast_unit->current_mask;
broadcast_mask &= ~((bcast_id << 16) | bcast_id);
/* store mask so we can restore on reset */
bcast_unit->current_mask = broadcast_mask;
}
void mali_bcast_reset(struct mali_bcast_unit *bcast_unit)
{
MALI_DEBUG_ASSERT_POINTER(bcast_unit);
MALI_DEBUG_PRINT(4,
("Broadcast: setting mask 0x%08X + 0x%08X (reset)\n",
bcast_unit->current_mask,
bcast_unit->current_mask & 0xFF));
/* set broadcast mask */
mali_hw_core_register_write(&bcast_unit->hw_core,
MALI_BROADCAST_REG_BROADCAST_MASK,
bcast_unit->current_mask);
/* set IRQ override mask */
mali_hw_core_register_write(&bcast_unit->hw_core,
MALI_BROADCAST_REG_INTERRUPT_MASK,
bcast_unit->current_mask & 0xFF);
}
void mali_bcast_disable(struct mali_bcast_unit *bcast_unit)
{
MALI_DEBUG_ASSERT_POINTER(bcast_unit);
MALI_DEBUG_PRINT(4, ("Broadcast: setting mask 0x0 + 0x0 (disable)\n"));
/* set broadcast mask */
mali_hw_core_register_write(&bcast_unit->hw_core,
MALI_BROADCAST_REG_BROADCAST_MASK,
0x0);
/* set IRQ override mask */
mali_hw_core_register_write(&bcast_unit->hw_core,
MALI_BROADCAST_REG_INTERRUPT_MASK,
0x0);
}
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