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// SPDX-License-Identifier: GPL-2.0
/*
*
* (C) COPYRIGHT 2019-2020 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.
*
* 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.
*
* SPDX-License-Identifier: GPL-2.0
*
*/
/*
* Base kernel context APIs for Job Manager GPUs
*/
#include <context/mali_kbase_context_internal.h>
#include <gpu/mali_kbase_gpu_regmap.h>
#include <mali_kbase.h>
#include <mali_kbase_ctx_sched.h>
#include <mali_kbase_dma_fence.h>
#include <mali_kbase_mem_linux.h>
#include <mali_kbase_mem_pool_group.h>
#include <mmu/mali_kbase_mmu.h>
#include <tl/mali_kbase_timeline.h>
#include <tl/mali_kbase_tracepoints.h>
#ifdef CONFIG_DEBUG_FS
#include <mali_kbase_debug_mem_view.h>
#include <mali_kbase_mem_pool_debugfs.h>
void kbase_context_debugfs_init(struct kbase_context *const kctx)
{
kbase_debug_mem_view_init(kctx);
kbase_mem_pool_debugfs_init(kctx->kctx_dentry, kctx);
kbase_jit_debugfs_init(kctx);
kbasep_jd_debugfs_ctx_init(kctx);
kbase_debug_job_fault_context_init(kctx);
}
KBASE_EXPORT_SYMBOL(kbase_context_debugfs_init);
void kbase_context_debugfs_term(struct kbase_context *const kctx)
{
debugfs_remove_recursive(kctx->kctx_dentry);
kbase_debug_job_fault_context_term(kctx);
}
KBASE_EXPORT_SYMBOL(kbase_context_debugfs_term);
#else
void kbase_context_debugfs_init(struct kbase_context *const kctx)
{
CSTD_UNUSED(kctx);
}
KBASE_EXPORT_SYMBOL(kbase_context_debugfs_init);
void kbase_context_debugfs_term(struct kbase_context *const kctx)
{
CSTD_UNUSED(kctx);
}
KBASE_EXPORT_SYMBOL(kbase_context_debugfs_term);
#endif /* CONFIG_DEBUG_FS */
static int kbase_context_kbase_timer_setup(struct kbase_context *kctx)
{
kbase_timer_setup(&kctx->soft_job_timeout,
kbasep_soft_job_timeout_worker);
return 0;
}
static int kbase_context_submit_check(struct kbase_context *kctx)
{
struct kbasep_js_kctx_info *js_kctx_info = &kctx->jctx.sched_info;
unsigned long irq_flags = 0;
base_context_create_flags const flags = kctx->create_flags;
mutex_lock(&js_kctx_info->ctx.jsctx_mutex);
spin_lock_irqsave(&kctx->kbdev->hwaccess_lock, irq_flags);
/* Translate the flags */
if ((flags & BASE_CONTEXT_SYSTEM_MONITOR_SUBMIT_DISABLED) == 0)
kbase_ctx_flag_clear(kctx, KCTX_SUBMIT_DISABLED);
spin_unlock_irqrestore(&kctx->kbdev->hwaccess_lock, irq_flags);
mutex_unlock(&js_kctx_info->ctx.jsctx_mutex);
return 0;
}
static const struct kbase_context_init context_init[] = {
{kbase_context_common_init, kbase_context_common_term, NULL},
{kbase_context_mem_pool_group_init, kbase_context_mem_pool_group_term,
"Memory pool goup initialization failed"},
{kbase_mem_evictable_init, kbase_mem_evictable_deinit,
"Memory evictable initialization failed"},
{kbasep_js_kctx_init, kbasep_js_kctx_term,
"JS kctx initialization failed"},
{kbase_jd_init, kbase_jd_exit,
"JD initialization failed"},
{kbase_event_init, kbase_event_cleanup,
"Event initialization failed"},
{kbase_dma_fence_init, kbase_dma_fence_term,
"DMA fence initialization failed"},
{kbase_context_mmu_init, kbase_context_mmu_term,
"MMU initialization failed"},
{kbase_context_mem_alloc_page, kbase_context_mem_pool_free,
"Memory alloc page failed"},
{kbase_region_tracker_init, kbase_region_tracker_term,
"Region tracker initialization failed"},
{kbase_sticky_resource_init, kbase_context_sticky_resource_term,
"Sticky resource initialization failed"},
{kbase_jit_init, kbase_jit_term,
"JIT initialization failed"},
{kbase_context_kbase_timer_setup, NULL, NULL},
{kbase_context_submit_check, NULL, NULL},
};
static void kbase_context_term_partial(
struct kbase_context *kctx,
unsigned int i)
{
while (i-- > 0) {
if (context_init[i].term)
context_init[i].term(kctx);
}
}
struct kbase_context *kbase_create_context(struct kbase_device *kbdev,
bool is_compat,
base_context_create_flags const flags,
unsigned long const api_version,
struct file *const filp)
{
struct kbase_context *kctx;
unsigned int i = 0;
if (WARN_ON(!kbdev))
return NULL;
/* Validate flags */
if (WARN_ON(flags != (flags & BASEP_CONTEXT_CREATE_KERNEL_FLAGS)))
return NULL;
/* zero-inited as lot of code assume it's zero'ed out on create */
kctx = vzalloc(sizeof(*kctx));
if (WARN_ON(!kctx))
return NULL;
kctx->kbdev = kbdev;
kctx->api_version = api_version;
kctx->filp = filp;
kctx->create_flags = flags;
if (is_compat)
kbase_ctx_flag_set(kctx, KCTX_COMPAT);
#if defined(CONFIG_64BIT)
else
kbase_ctx_flag_set(kctx, KCTX_FORCE_SAME_VA);
#endif /* !defined(CONFIG_64BIT) */
for (i = 0; i < ARRAY_SIZE(context_init); i++) {
int err = context_init[i].init(kctx);
if (err) {
dev_err(kbdev->dev, "%s error = %d\n",
context_init[i].err_mes, err);
kbase_context_term_partial(kctx, i);
return NULL;
}
}
return kctx;
}
KBASE_EXPORT_SYMBOL(kbase_create_context);
void kbase_destroy_context(struct kbase_context *kctx)
{
struct kbase_device *kbdev;
if (WARN_ON(!kctx))
return;
kbdev = kctx->kbdev;
if (WARN_ON(!kbdev))
return;
/* Ensure the core is powered up for the destroy process
* A suspend won't happen here, because we're in a syscall
* from a userspace thread.
*/
kbase_pm_context_active(kbdev);
kbase_mem_pool_group_mark_dying(&kctx->mem_pools);
kbase_jd_zap_context(kctx);
flush_workqueue(kctx->jctx.job_done_wq);
kbase_context_term_partial(kctx, ARRAY_SIZE(context_init));
kbase_pm_context_idle(kbdev);
}
KBASE_EXPORT_SYMBOL(kbase_destroy_context);
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