diff options
Diffstat (limited to 'drivers/gpu/mali400/r3p2/mali/common/mali_broadcast.c')
| -rw-r--r-- | drivers/gpu/mali400/r3p2/mali/common/mali_broadcast.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/gpu/mali400/r3p2/mali/common/mali_broadcast.c b/drivers/gpu/mali400/r3p2/mali/common/mali_broadcast.c new file mode 100644 index 0000000..8b05496 --- /dev/null +++ b/drivers/gpu/mali400/r3p2/mali/common/mali_broadcast.c @@ -0,0 +1,129 @@ +/* + * Copyright (C) 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_broadcast.h" +#include "mali_kernel_common.h" +#include "mali_osk.h" + +static const int bcast_unit_reg_size = 0x1000; +static const int bcast_unit_addr_broadcast_mask = 0x0; +static const int bcast_unit_addr_irq_override_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, ("Mali Broadcast unit: 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(("Mali Broadcast unit: Failed to allocate memory for Broadcast unit\n")); + return NULL; + } + + if (_MALI_OSK_ERR_OK == mali_hw_core_create(&bcast_unit->hw_core, resource, bcast_unit_reg_size)) + { + bcast_unit->current_mask = 0; + mali_bcast_reset(bcast_unit); + + return bcast_unit; + } + else + { + MALI_PRINT_ERROR(("Mali Broadcast unit: 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); +} + +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; +} + +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); + + /* set broadcast mask */ + mali_hw_core_register_write(&bcast_unit->hw_core, + bcast_unit_addr_broadcast_mask, + bcast_unit->current_mask); + + /* set IRQ override mask */ + mali_hw_core_register_write(&bcast_unit->hw_core, + bcast_unit_addr_irq_override_mask, + bcast_unit->current_mask & 0xFF); +} + +void mali_bcast_disable(struct mali_bcast_unit *bcast_unit) +{ + MALI_DEBUG_ASSERT_POINTER(bcast_unit); + + /* set broadcast mask */ + mali_hw_core_register_write(&bcast_unit->hw_core, + bcast_unit_addr_broadcast_mask, + 0x0); + + /* set IRQ override mask */ + mali_hw_core_register_write(&bcast_unit->hw_core, + bcast_unit_addr_irq_override_mask, + 0x0); +} |