diff options
Diffstat (limited to 'driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_cache_policy.c')
-rwxr-xr-x | driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_cache_policy.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_cache_policy.c b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_cache_policy.c new file mode 100755 index 0000000..c67b3e9 --- /dev/null +++ b/driver/product/kernel/drivers/gpu/arm/midgard/mali_kbase_cache_policy.c @@ -0,0 +1,64 @@ +/* + * + * (C) COPYRIGHT 2012-2016 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. + * + */ + + + + + +/* + * Cache Policy API. + */ + +#include "mali_kbase_cache_policy.h" + +/* + * The output flags should be a combination of the following values: + * KBASE_REG_CPU_CACHED: CPU cache should be enabled. + */ +u32 kbase_cache_enabled(u32 flags, u32 nr_pages) +{ + u32 cache_flags = 0; + + CSTD_UNUSED(nr_pages); + + if (flags & BASE_MEM_CACHED_CPU) + cache_flags |= KBASE_REG_CPU_CACHED; + + return cache_flags; +} + + +void kbase_sync_single_for_device(struct kbase_device *kbdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ +/* Check if kernel is using coherency with GPU */ +#ifdef CONFIG_MALI_COH_KERN + if (kbdev->system_coherency == COHERENCY_ACE) + return; +#endif /* CONFIG_MALI_COH_KERN */ + dma_sync_single_for_device(kbdev->dev, handle, size, dir); +} + + +void kbase_sync_single_for_cpu(struct kbase_device *kbdev, dma_addr_t handle, + size_t size, enum dma_data_direction dir) +{ +/* Check if kernel is using coherency with GPU */ +#ifdef CONFIG_MALI_COH_KERN + if (kbdev->system_coherency == COHERENCY_ACE) + return; +#endif /* CONFIG_MALI_COH_KERN */ + dma_sync_single_for_cpu(kbdev->dev, handle, size, dir); +} |