| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * |
| * (C) COPYRIGHT 2019-2021 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 license. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| */ |
| |
| #ifndef _KBASE_CSF_TILER_HEAP_H_ |
| #define _KBASE_CSF_TILER_HEAP_H_ |
| |
| #include <mali_kbase.h> |
| |
| /** |
| * kbase_csf_tiler_heap_context_init - Initialize the tiler heaps context for a |
| * GPU address space |
| * |
| * @kctx: Pointer to the kbase context being initialized. |
| * |
| * Return: 0 if successful or a negative error code on failure. |
| */ |
| int kbase_csf_tiler_heap_context_init(struct kbase_context *kctx); |
| |
| /** |
| * kbase_csf_tiler_heap_context_term - Terminate the tiler heaps context for a |
| * GPU address space |
| * |
| * This function deletes any chunked tiler heaps that weren't deleted before |
| * context termination. |
| * |
| * @kctx: Pointer to the kbase context being terminated. |
| */ |
| void kbase_csf_tiler_heap_context_term(struct kbase_context *kctx); |
| |
| /** |
| * kbase_csf_tiler_heap_init - Initialize a chunked tiler memory heap. |
| * |
| * @kctx: Pointer to the kbase context in which to allocate resources for the |
| * tiler heap. |
| * @chunk_size: Size of each chunk, in bytes. Must be page-aligned. |
| * @initial_chunks: The initial number of chunks to allocate. Must not be |
| * zero or greater than @max_chunks. |
| * @max_chunks: The maximum number of chunks that the heap should be allowed |
| * to use. Must not be less than @initial_chunks. |
| * @target_in_flight: Number of render-passes that the driver should attempt to |
| * keep in flight for which allocation of new chunks is |
| * allowed. Must not be zero. |
| * @gpu_heap_va: Where to store the GPU virtual address of the context that was |
| * set up for the tiler heap. |
| * @first_chunk_va: Where to store the GPU virtual address of the first chunk |
| * allocated for the heap. This points to the header of the |
| * heap chunk and not to the low address of free memory in it. |
| * |
| * Return: 0 if successful or a negative error code on failure. |
| */ |
| int kbase_csf_tiler_heap_init(struct kbase_context *kctx, |
| u32 chunk_size, u32 initial_chunks, u32 max_chunks, |
| u16 target_in_flight, u64 *gpu_heap_va, |
| u64 *first_chunk_va); |
| |
| /** |
| * kbasep_cs_tiler_heap_term - Terminate a chunked tiler memory heap. |
| * |
| * This function will terminate a chunked tiler heap and cause all the chunks |
| * (initial and those added during out-of-memory processing) to be freed. |
| * It is the caller's responsibility to ensure no further operations on this |
| * heap will happen before calling this function. |
| * |
| * @kctx: Pointer to the kbase context in which the tiler heap was initialized. |
| * @gpu_heap_va: The GPU virtual address of the context that was set up for the |
| * tiler heap. |
| * |
| * Return: 0 if successful or a negative error code on failure. |
| */ |
| int kbase_csf_tiler_heap_term(struct kbase_context *kctx, u64 gpu_heap_va); |
| |
| /** |
| * kbase_csf_tiler_heap_alloc_new_chunk - Allocate a new chunk for tiler heap. |
| * |
| * This function will allocate a new chunk for the chunked tiler heap depending |
| * on the settings provided by userspace when the heap was created and the |
| * heap's statistics (like number of render passes in-flight). |
| * It would return an appropriate error code if a new chunk couldn't be |
| * allocated. |
| * |
| * @kctx: Pointer to the kbase context in which the tiler heap was initialized. |
| * @gpu_heap_va: GPU virtual address of the heap context. |
| * @nr_in_flight: Number of render passes that are in-flight, must not be zero. |
| * @pending_frag_count: Number of render passes in-flight with completed vertex/tiler stage. |
| * The minimum value is zero but it must be less or equal to |
| * the total number of render passes in flight |
| * @new_chunk_ptr: Where to store the GPU virtual address & size of the new |
| * chunk allocated for the heap. |
| * |
| * Return: 0 if a new chunk was allocated otherwise an appropriate negative |
| * error code (like -EBUSY when a free chunk is expected to be |
| * available upon completion of a render pass and -EINVAL when |
| * invalid value was passed for one of the argument). |
| */ |
| int kbase_csf_tiler_heap_alloc_new_chunk(struct kbase_context *kctx, |
| u64 gpu_heap_va, u32 nr_in_flight, u32 pending_frag_count, u64 *new_chunk_ptr); |
| #endif |