// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
|
/*
|
*
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* (C) COPYRIGHT 2018-2023 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* 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
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* of such GNU license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
|
* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
|
*
|
*/
|
|
#include <mali_kbase.h>
|
#include <tl/mali_kbase_tracepoints.h>
|
#include <mali_kbase_ctx_sched.h>
|
#include "device/mali_kbase_device.h"
|
#include "mali_kbase_csf.h"
|
#include <linux/export.h>
|
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
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#include "mali_kbase_fence.h"
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#include "mali_kbase_sync.h"
|
|
static DEFINE_SPINLOCK(kbase_csf_fence_lock);
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#endif
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|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
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#define FENCE_WAIT_TIMEOUT_MS 3000
|
#endif
|
|
static void kcpu_queue_process(struct kbase_kcpu_command_queue *kcpu_queue,
|
bool drain_queue);
|
|
static void kcpu_queue_process_worker(struct work_struct *data);
|
|
static int kbase_kcpu_map_import_prepare(
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struct kbase_kcpu_command_queue *kcpu_queue,
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struct base_kcpu_command_import_info *import_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
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struct kbase_va_region *reg;
|
struct kbase_mem_phy_alloc *alloc;
|
struct page **pages;
|
struct tagged_addr *pa;
|
long i;
|
int ret = 0;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
/* Take the processes mmap lock */
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down_read(kbase_mem_get_process_mmap_lock());
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kbase_gpu_vm_lock(kctx);
|
|
reg = kbase_region_tracker_find_region_enclosing_address(kctx,
|
import_info->handle);
|
|
if (kbase_is_region_invalid_or_free(reg) ||
|
!kbase_mem_is_imported(reg->gpu_alloc->type)) {
|
ret = -EINVAL;
|
goto out;
|
}
|
|
if (reg->gpu_alloc->type == KBASE_MEM_TYPE_IMPORTED_USER_BUF) {
|
/* Pin the physical pages backing the user buffer while
|
* we are in the process context and holding the mmap lock.
|
* The dma mapping & GPU mapping of the pages would be done
|
* when the MAP_IMPORT operation is executed.
|
*
|
* Though the pages would be pinned, no reference is taken
|
* on the physical pages tracking object. When the last
|
* reference to the tracking object is dropped the pages
|
* would be unpinned if they weren't unpinned before.
|
*
|
* Region should be CPU cached: abort if it isn't.
|
*/
|
if (WARN_ON(!(reg->flags & KBASE_REG_CPU_CACHED))) {
|
ret = -EINVAL;
|
goto out;
|
}
|
|
ret = kbase_jd_user_buf_pin_pages(kctx, reg);
|
if (ret)
|
goto out;
|
|
alloc = reg->gpu_alloc;
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pa = kbase_get_gpu_phy_pages(reg);
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pages = alloc->imported.user_buf.pages;
|
|
for (i = 0; i < alloc->nents; i++)
|
pa[i] = as_tagged(page_to_phys(pages[i]));
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_MAP_IMPORT;
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current_command->info.import.gpu_va = import_info->handle;
|
|
out:
|
kbase_gpu_vm_unlock(kctx);
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/* Release the processes mmap lock */
|
up_read(kbase_mem_get_process_mmap_lock());
|
|
return ret;
|
}
|
|
static int kbase_kcpu_unmap_import_prepare_internal(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_import_info *import_info,
|
struct kbase_kcpu_command *current_command,
|
enum base_kcpu_command_type type)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
struct kbase_va_region *reg;
|
int ret = 0;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
kbase_gpu_vm_lock(kctx);
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reg = kbase_region_tracker_find_region_enclosing_address(kctx,
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import_info->handle);
|
|
if (kbase_is_region_invalid_or_free(reg) ||
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!kbase_mem_is_imported(reg->gpu_alloc->type)) {
|
ret = -EINVAL;
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goto out;
|
}
|
|
if (reg->gpu_alloc->type == KBASE_MEM_TYPE_IMPORTED_USER_BUF) {
|
/* The pages should have been pinned when MAP_IMPORT
|
* was enqueued previously.
|
*/
|
if (reg->gpu_alloc->nents !=
|
reg->gpu_alloc->imported.user_buf.nr_pages) {
|
ret = -EINVAL;
|
goto out;
|
}
|
}
|
|
current_command->type = type;
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current_command->info.import.gpu_va = import_info->handle;
|
|
out:
|
kbase_gpu_vm_unlock(kctx);
|
|
return ret;
|
}
|
|
static int kbase_kcpu_unmap_import_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_import_info *import_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
return kbase_kcpu_unmap_import_prepare_internal(kcpu_queue,
|
import_info, current_command,
|
BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT);
|
}
|
|
static int kbase_kcpu_unmap_import_force_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_import_info *import_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
return kbase_kcpu_unmap_import_prepare_internal(kcpu_queue,
|
import_info, current_command,
|
BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT_FORCE);
|
}
|
|
/**
|
* kbase_jit_add_to_pending_alloc_list() - Pend JIT allocation
|
*
|
* @queue: The queue containing this JIT allocation
|
* @cmd: The JIT allocation that is blocking this queue
|
*/
|
static void kbase_jit_add_to_pending_alloc_list(
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command *cmd)
|
{
|
struct kbase_context *const kctx = queue->kctx;
|
struct list_head *target_list_head =
|
&kctx->csf.kcpu_queues.jit_blocked_queues;
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struct kbase_kcpu_command_queue *blocked_queue;
|
|
lockdep_assert_held(&queue->lock);
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lockdep_assert_held(&kctx->csf.kcpu_queues.jit_lock);
|
|
list_for_each_entry(blocked_queue,
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&kctx->csf.kcpu_queues.jit_blocked_queues,
|
jit_blocked) {
|
struct kbase_kcpu_command const *const jit_alloc_cmd =
|
&blocked_queue->commands[blocked_queue->start_offset];
|
|
WARN_ON(jit_alloc_cmd->type != BASE_KCPU_COMMAND_TYPE_JIT_ALLOC);
|
if (cmd->enqueue_ts < jit_alloc_cmd->enqueue_ts) {
|
target_list_head = &blocked_queue->jit_blocked;
|
break;
|
}
|
}
|
|
list_add_tail(&queue->jit_blocked, target_list_head);
|
}
|
|
/**
|
* kbase_kcpu_jit_allocate_process() - Process JIT allocation
|
*
|
* @queue: The queue containing this JIT allocation
|
* @cmd: The JIT allocation command
|
*
|
* Return:
|
* * 0 - allocation OK
|
* * -EINVAL - missing info or JIT ID still in use
|
* * -EAGAIN - Retry
|
* * -ENOMEM - no memory. unable to allocate
|
*/
|
static int kbase_kcpu_jit_allocate_process(
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command *cmd)
|
{
|
struct kbase_context *const kctx = queue->kctx;
|
struct kbase_kcpu_command_jit_alloc_info *alloc_info =
|
&cmd->info.jit_alloc;
|
struct base_jit_alloc_info *info = alloc_info->info;
|
struct kbase_vmap_struct mapping;
|
struct kbase_va_region *reg;
|
u32 count = alloc_info->count;
|
u64 *ptr, new_addr;
|
u32 i;
|
int ret;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (WARN_ON(!info))
|
return -EINVAL;
|
|
mutex_lock(&kctx->csf.kcpu_queues.jit_lock);
|
|
/* Check if all JIT IDs are not in use */
|
for (i = 0; i < count; i++, info++) {
|
/* The JIT ID is still in use so fail the allocation */
|
if (kctx->jit_alloc[info->id]) {
|
dev_dbg(kctx->kbdev->dev, "JIT ID still in use");
|
ret = -EINVAL;
|
goto fail;
|
}
|
}
|
|
if (alloc_info->blocked) {
|
list_del(&queue->jit_blocked);
|
alloc_info->blocked = false;
|
}
|
|
/* Now start the allocation loop */
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for (i = 0, info = alloc_info->info; i < count; i++, info++) {
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/* Create a JIT allocation */
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reg = kbase_jit_allocate(kctx, info, true);
|
if (!reg) {
|
bool can_block = false;
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struct kbase_kcpu_command const *jit_cmd;
|
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list_for_each_entry(jit_cmd, &kctx->csf.kcpu_queues.jit_cmds_head, info.jit_alloc.node) {
|
if (jit_cmd == cmd)
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break;
|
|
if (jit_cmd->type == BASE_KCPU_COMMAND_TYPE_JIT_FREE) {
|
u8 const *const free_ids = jit_cmd->info.jit_free.ids;
|
|
if (free_ids && *free_ids && kctx->jit_alloc[*free_ids]) {
|
/*
|
* A JIT free which is active
|
* and submitted before this
|
* command.
|
*/
|
can_block = true;
|
break;
|
}
|
}
|
}
|
|
if (!can_block) {
|
/*
|
* No prior JIT_FREE command is active. Roll
|
* back previous allocations and fail.
|
*/
|
dev_warn_ratelimited(kctx->kbdev->dev, "JIT alloc command failed: %pK\n", cmd);
|
ret = -ENOMEM;
|
goto fail_rollback;
|
}
|
|
/* There are pending frees for an active allocation
|
* so we should wait to see whether they free the
|
* memory. Add to the list of atoms for which JIT
|
* allocation is pending.
|
*/
|
kbase_jit_add_to_pending_alloc_list(queue, cmd);
|
alloc_info->blocked = true;
|
|
/* Rollback, the whole set will be re-attempted */
|
while (i-- > 0) {
|
info--;
|
kbase_jit_free(kctx, kctx->jit_alloc[info->id]);
|
kctx->jit_alloc[info->id] = NULL;
|
}
|
|
ret = -EAGAIN;
|
goto fail;
|
}
|
|
/* Bind it to the user provided ID. */
|
kctx->jit_alloc[info->id] = reg;
|
}
|
|
for (i = 0, info = alloc_info->info; i < count; i++, info++) {
|
/*
|
* Write the address of the JIT allocation to the user provided
|
* GPU allocation.
|
*/
|
ptr = kbase_vmap_prot(kctx, info->gpu_alloc_addr, sizeof(*ptr),
|
KBASE_REG_CPU_WR, &mapping);
|
if (!ptr) {
|
ret = -ENOMEM;
|
goto fail_rollback;
|
}
|
|
reg = kctx->jit_alloc[info->id];
|
new_addr = reg->start_pfn << PAGE_SHIFT;
|
*ptr = new_addr;
|
kbase_vunmap(kctx, &mapping);
|
}
|
|
mutex_unlock(&kctx->csf.kcpu_queues.jit_lock);
|
|
return 0;
|
|
fail_rollback:
|
/* Roll back completely */
|
for (i = 0, info = alloc_info->info; i < count; i++, info++) {
|
/* Free the allocations that were successful.
|
* Mark all the allocations including the failed one and the
|
* other un-attempted allocations in the set, so we know they
|
* are in use.
|
*/
|
if (kctx->jit_alloc[info->id])
|
kbase_jit_free(kctx, kctx->jit_alloc[info->id]);
|
|
kctx->jit_alloc[info->id] = KBASE_RESERVED_REG_JIT_ALLOC;
|
}
|
fail:
|
mutex_unlock(&kctx->csf.kcpu_queues.jit_lock);
|
|
return ret;
|
}
|
|
static int kbase_kcpu_jit_allocate_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_jit_alloc_info *alloc_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
void __user *data = u64_to_user_ptr(alloc_info->info);
|
struct base_jit_alloc_info *info = NULL;
|
u32 count = alloc_info->count;
|
int ret = 0;
|
u32 i;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if ((count == 0) || (count > ARRAY_SIZE(kctx->jit_alloc)) ||
|
(count > kcpu_queue->kctx->jit_max_allocations) || (!data) ||
|
!kbase_mem_allow_alloc(kctx)) {
|
ret = -EINVAL;
|
goto out;
|
}
|
|
info = kmalloc_array(count, sizeof(*info), GFP_KERNEL);
|
if (!info) {
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
if (copy_from_user(info, data, sizeof(*info) * count) != 0) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
|
for (i = 0; i < count; i++) {
|
ret = kbasep_jit_alloc_validate(kctx, &info[i]);
|
if (ret)
|
goto out_free;
|
}
|
|
/* Search for duplicate JIT ids */
|
for (i = 0; i < (count - 1); i++) {
|
u32 j;
|
|
for (j = (i + 1); j < count; j++) {
|
if (info[i].id == info[j].id) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_JIT_ALLOC;
|
current_command->info.jit_alloc.info = info;
|
current_command->info.jit_alloc.count = count;
|
current_command->info.jit_alloc.blocked = false;
|
mutex_lock(&kctx->csf.kcpu_queues.jit_lock);
|
list_add_tail(¤t_command->info.jit_alloc.node,
|
&kctx->csf.kcpu_queues.jit_cmds_head);
|
mutex_unlock(&kctx->csf.kcpu_queues.jit_lock);
|
|
return 0;
|
out_free:
|
kfree(info);
|
out:
|
return ret;
|
}
|
|
/**
|
* kbase_kcpu_jit_allocate_finish() - Finish handling the JIT_ALLOC command
|
*
|
* @queue: The queue containing this JIT allocation
|
* @cmd: The JIT allocation command
|
*/
|
static void kbase_kcpu_jit_allocate_finish(
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command *cmd)
|
{
|
lockdep_assert_held(&queue->lock);
|
|
mutex_lock(&queue->kctx->csf.kcpu_queues.jit_lock);
|
|
/* Remove this command from the jit_cmds_head list */
|
list_del(&cmd->info.jit_alloc.node);
|
|
/*
|
* If we get to this point we must have already cleared the blocked
|
* flag, otherwise it'd be a bug.
|
*/
|
if (WARN_ON(cmd->info.jit_alloc.blocked)) {
|
list_del(&queue->jit_blocked);
|
cmd->info.jit_alloc.blocked = false;
|
}
|
|
mutex_unlock(&queue->kctx->csf.kcpu_queues.jit_lock);
|
|
kfree(cmd->info.jit_alloc.info);
|
}
|
|
/**
|
* kbase_kcpu_jit_retry_pending_allocs() - Retry blocked JIT_ALLOC commands
|
*
|
* @kctx: The context containing the blocked JIT_ALLOC commands
|
*/
|
static void kbase_kcpu_jit_retry_pending_allocs(struct kbase_context *kctx)
|
{
|
struct kbase_kcpu_command_queue *blocked_queue;
|
|
lockdep_assert_held(&kctx->csf.kcpu_queues.jit_lock);
|
|
/*
|
* Reschedule all queues blocked by JIT_ALLOC commands.
|
* NOTE: This code traverses the list of blocked queues directly. It
|
* only works as long as the queued works are not executed at the same
|
* time. This precondition is true since we're holding the
|
* kbase_csf_kcpu_queue_context.jit_lock .
|
*/
|
list_for_each_entry(blocked_queue, &kctx->csf.kcpu_queues.jit_blocked_queues, jit_blocked)
|
queue_work(blocked_queue->wq, &blocked_queue->work);
|
}
|
|
static int kbase_kcpu_jit_free_process(struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command *const cmd)
|
{
|
struct kbase_kcpu_command_jit_free_info const *const free_info =
|
&cmd->info.jit_free;
|
u8 const *const ids = free_info->ids;
|
u32 const count = free_info->count;
|
u32 i;
|
int rc = 0;
|
struct kbase_context *kctx = queue->kctx;
|
|
if (WARN_ON(!ids))
|
return -EINVAL;
|
|
lockdep_assert_held(&queue->lock);
|
mutex_lock(&kctx->csf.kcpu_queues.jit_lock);
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_BEGIN_KCPUQUEUE_EXECUTE_JIT_FREE_END(queue->kctx->kbdev,
|
queue);
|
|
for (i = 0; i < count; i++) {
|
u64 pages_used = 0;
|
int item_err = 0;
|
|
if (!kctx->jit_alloc[ids[i]]) {
|
dev_dbg(kctx->kbdev->dev, "invalid JIT free ID");
|
rc = -EINVAL;
|
item_err = rc;
|
} else {
|
struct kbase_va_region *const reg = kctx->jit_alloc[ids[i]];
|
|
/*
|
* If the ID is valid but the allocation request failed, still
|
* succeed this command but don't try and free the allocation.
|
*/
|
if (reg != KBASE_RESERVED_REG_JIT_ALLOC) {
|
pages_used = reg->gpu_alloc->nents;
|
kbase_jit_free(kctx, reg);
|
}
|
|
kctx->jit_alloc[ids[i]] = NULL;
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_ITEM_KCPUQUEUE_EXECUTE_JIT_FREE_END(
|
queue->kctx->kbdev, queue, item_err, pages_used);
|
}
|
|
/*
|
* Remove this command from the jit_cmds_head list and retry pending
|
* allocations.
|
*/
|
list_del(&cmd->info.jit_free.node);
|
kbase_kcpu_jit_retry_pending_allocs(kctx);
|
|
mutex_unlock(&kctx->csf.kcpu_queues.jit_lock);
|
|
/* Free the list of ids */
|
kfree(ids);
|
|
return rc;
|
}
|
|
static int kbase_kcpu_jit_free_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_jit_free_info *free_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
void __user *data = u64_to_user_ptr(free_info->ids);
|
u8 *ids;
|
u32 count = free_info->count;
|
int ret;
|
u32 i;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
/* Sanity checks */
|
if (!count || count > ARRAY_SIZE(kctx->jit_alloc)) {
|
ret = -EINVAL;
|
goto out;
|
}
|
|
/* Copy the information for safe access and future storage */
|
ids = kmalloc_array(count, sizeof(*ids), GFP_KERNEL);
|
if (!ids) {
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
if (!data) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
|
if (copy_from_user(ids, data, sizeof(*ids) * count)) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
|
for (i = 0; i < count; i++) {
|
/* Fail the command if ID sent is zero */
|
if (!ids[i]) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
}
|
|
/* Search for duplicate JIT ids */
|
for (i = 0; i < (count - 1); i++) {
|
u32 j;
|
|
for (j = (i + 1); j < count; j++) {
|
if (ids[i] == ids[j]) {
|
ret = -EINVAL;
|
goto out_free;
|
}
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_JIT_FREE;
|
current_command->info.jit_free.ids = ids;
|
current_command->info.jit_free.count = count;
|
mutex_lock(&kctx->csf.kcpu_queues.jit_lock);
|
list_add_tail(¤t_command->info.jit_free.node,
|
&kctx->csf.kcpu_queues.jit_cmds_head);
|
mutex_unlock(&kctx->csf.kcpu_queues.jit_lock);
|
|
return 0;
|
out_free:
|
kfree(ids);
|
out:
|
return ret;
|
}
|
|
#if IS_ENABLED(CONFIG_MALI_VECTOR_DUMP) || MALI_UNIT_TEST
|
static int kbase_csf_queue_group_suspend_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_group_suspend_info *suspend_buf,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
struct kbase_suspend_copy_buffer *sus_buf = NULL;
|
const u32 csg_suspend_buf_size =
|
kctx->kbdev->csf.global_iface.groups[0].suspend_size;
|
u64 addr = suspend_buf->buffer;
|
u64 page_addr = addr & PAGE_MASK;
|
u64 end_addr = addr + csg_suspend_buf_size - 1;
|
u64 last_page_addr = end_addr & PAGE_MASK;
|
int nr_pages = (last_page_addr - page_addr) / PAGE_SIZE + 1;
|
int pinned_pages = 0, ret = 0;
|
struct kbase_va_region *reg;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (suspend_buf->size < csg_suspend_buf_size)
|
return -EINVAL;
|
|
ret = kbase_csf_queue_group_handle_is_valid(kctx,
|
suspend_buf->group_handle);
|
if (ret)
|
return ret;
|
|
sus_buf = kzalloc(sizeof(*sus_buf), GFP_KERNEL);
|
if (!sus_buf)
|
return -ENOMEM;
|
|
sus_buf->size = csg_suspend_buf_size;
|
sus_buf->nr_pages = nr_pages;
|
sus_buf->offset = addr & ~PAGE_MASK;
|
|
sus_buf->pages = kcalloc(nr_pages, sizeof(struct page *), GFP_KERNEL);
|
if (!sus_buf->pages) {
|
ret = -ENOMEM;
|
goto out_clean_sus_buf;
|
}
|
|
/* Check if the page_addr is a valid GPU VA from SAME_VA zone,
|
* otherwise consider it is a CPU VA corresponding to the Host
|
* memory allocated by userspace.
|
*/
|
kbase_gpu_vm_lock(kctx);
|
reg = kbase_region_tracker_find_region_enclosing_address(kctx,
|
page_addr);
|
|
if (kbase_is_region_invalid_or_free(reg)) {
|
kbase_gpu_vm_unlock(kctx);
|
pinned_pages = get_user_pages_fast(page_addr, nr_pages, 1,
|
sus_buf->pages);
|
kbase_gpu_vm_lock(kctx);
|
|
if (pinned_pages < 0) {
|
ret = pinned_pages;
|
goto out_clean_pages;
|
}
|
if (pinned_pages != nr_pages) {
|
ret = -EINVAL;
|
goto out_clean_pages;
|
}
|
} else {
|
struct tagged_addr *page_array;
|
u64 start, end, i;
|
|
if (((reg->flags & KBASE_REG_ZONE_MASK) != KBASE_REG_ZONE_SAME_VA) ||
|
(kbase_reg_current_backed_size(reg) < nr_pages) ||
|
!(reg->flags & KBASE_REG_CPU_WR) ||
|
(reg->gpu_alloc->type != KBASE_MEM_TYPE_NATIVE) ||
|
(kbase_is_region_shrinkable(reg)) || (kbase_va_region_is_no_user_free(reg))) {
|
ret = -EINVAL;
|
goto out_clean_pages;
|
}
|
|
start = PFN_DOWN(page_addr) - reg->start_pfn;
|
end = start + nr_pages;
|
|
if (end > reg->nr_pages) {
|
ret = -EINVAL;
|
goto out_clean_pages;
|
}
|
|
sus_buf->cpu_alloc = kbase_mem_phy_alloc_get(reg->cpu_alloc);
|
kbase_mem_phy_alloc_kernel_mapped(reg->cpu_alloc);
|
page_array = kbase_get_cpu_phy_pages(reg);
|
page_array += start;
|
|
for (i = 0; i < nr_pages; i++, page_array++)
|
sus_buf->pages[i] = as_page(*page_array);
|
}
|
|
kbase_gpu_vm_unlock(kctx);
|
current_command->type = BASE_KCPU_COMMAND_TYPE_GROUP_SUSPEND;
|
current_command->info.suspend_buf_copy.sus_buf = sus_buf;
|
current_command->info.suspend_buf_copy.group_handle =
|
suspend_buf->group_handle;
|
return ret;
|
|
out_clean_pages:
|
kbase_gpu_vm_unlock(kctx);
|
kfree(sus_buf->pages);
|
out_clean_sus_buf:
|
kfree(sus_buf);
|
|
return ret;
|
}
|
|
static int kbase_csf_queue_group_suspend_process(struct kbase_context *kctx,
|
struct kbase_suspend_copy_buffer *sus_buf,
|
u8 group_handle)
|
{
|
return kbase_csf_queue_group_suspend(kctx, sus_buf, group_handle);
|
}
|
#endif
|
|
static enum kbase_csf_event_callback_action event_cqs_callback(void *param)
|
{
|
struct kbase_kcpu_command_queue *kcpu_queue =
|
(struct kbase_kcpu_command_queue *)param;
|
|
queue_work(kcpu_queue->wq, &kcpu_queue->work);
|
|
return KBASE_CSF_EVENT_CALLBACK_KEEP;
|
}
|
|
static void cleanup_cqs_wait(struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_wait_info *cqs_wait)
|
{
|
WARN_ON(!cqs_wait->nr_objs);
|
WARN_ON(!cqs_wait->objs);
|
WARN_ON(!cqs_wait->signaled);
|
WARN_ON(!queue->cqs_wait_count);
|
|
if (--queue->cqs_wait_count == 0) {
|
kbase_csf_event_wait_remove(queue->kctx,
|
event_cqs_callback, queue);
|
}
|
|
kfree(cqs_wait->signaled);
|
kfree(cqs_wait->objs);
|
cqs_wait->signaled = NULL;
|
cqs_wait->objs = NULL;
|
}
|
|
static int kbase_kcpu_cqs_wait_process(struct kbase_device *kbdev,
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_wait_info *cqs_wait)
|
{
|
u32 i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (WARN_ON(!cqs_wait->objs))
|
return -EINVAL;
|
|
/* Skip the CQS waits that have already been signaled when processing */
|
for (i = find_first_zero_bit(cqs_wait->signaled, cqs_wait->nr_objs); i < cqs_wait->nr_objs; i++) {
|
if (!test_bit(i, cqs_wait->signaled)) {
|
struct kbase_vmap_struct *mapping;
|
bool sig_set;
|
u32 *evt = (u32 *)kbase_phy_alloc_mapping_get(queue->kctx,
|
cqs_wait->objs[i].addr, &mapping);
|
|
if (!queue->command_started) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_WAIT_START(kbdev,
|
queue);
|
queue->command_started = true;
|
KBASE_KTRACE_ADD_CSF_KCPU(kbdev, KCPU_CQS_WAIT_START,
|
queue, cqs_wait->nr_objs, 0);
|
}
|
|
if (!evt) {
|
dev_warn(kbdev->dev,
|
"Sync memory %llx already freed", cqs_wait->objs[i].addr);
|
queue->has_error = true;
|
return -EINVAL;
|
}
|
|
sig_set =
|
evt[BASEP_EVENT32_VAL_OFFSET / sizeof(u32)] > cqs_wait->objs[i].val;
|
if (sig_set) {
|
bool error = false;
|
|
bitmap_set(cqs_wait->signaled, i, 1);
|
if ((cqs_wait->inherit_err_flags & (1U << i)) &&
|
evt[BASEP_EVENT32_ERR_OFFSET / sizeof(u32)] > 0) {
|
queue->has_error = true;
|
error = true;
|
}
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kbdev, KCPU_CQS_WAIT_END,
|
queue, cqs_wait->objs[i].addr,
|
error);
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_WAIT_END(
|
kbdev, queue, evt[BASEP_EVENT32_ERR_OFFSET / sizeof(u32)]);
|
queue->command_started = false;
|
}
|
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
|
if (!sig_set)
|
break;
|
}
|
}
|
|
/* For the queue to progress further, all cqs objects should get
|
* signaled.
|
*/
|
return bitmap_full(cqs_wait->signaled, cqs_wait->nr_objs);
|
}
|
|
static inline bool kbase_kcpu_cqs_is_data_type_valid(u8 data_type)
|
{
|
return data_type == BASEP_CQS_DATA_TYPE_U32 || data_type == BASEP_CQS_DATA_TYPE_U64;
|
}
|
|
static inline bool kbase_kcpu_cqs_is_aligned(u64 addr, u8 data_type)
|
{
|
BUILD_BUG_ON(BASEP_EVENT32_ALIGN_BYTES != BASEP_EVENT32_SIZE_BYTES);
|
BUILD_BUG_ON(BASEP_EVENT64_ALIGN_BYTES != BASEP_EVENT64_SIZE_BYTES);
|
WARN_ON(!kbase_kcpu_cqs_is_data_type_valid(data_type));
|
|
switch (data_type) {
|
default:
|
return false;
|
case BASEP_CQS_DATA_TYPE_U32:
|
return (addr & (BASEP_EVENT32_ALIGN_BYTES - 1)) == 0;
|
case BASEP_CQS_DATA_TYPE_U64:
|
return (addr & (BASEP_EVENT64_ALIGN_BYTES - 1)) == 0;
|
}
|
}
|
|
static int kbase_kcpu_cqs_wait_prepare(struct kbase_kcpu_command_queue *queue,
|
struct base_kcpu_command_cqs_wait_info *cqs_wait_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct base_cqs_wait_info *objs;
|
unsigned int nr_objs = cqs_wait_info->nr_objs;
|
unsigned int i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (nr_objs > BASEP_KCPU_CQS_MAX_NUM_OBJS)
|
return -EINVAL;
|
|
if (!nr_objs)
|
return -EINVAL;
|
|
objs = kcalloc(nr_objs, sizeof(*objs), GFP_KERNEL);
|
if (!objs)
|
return -ENOMEM;
|
|
if (copy_from_user(objs, u64_to_user_ptr(cqs_wait_info->objs),
|
nr_objs * sizeof(*objs))) {
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
/* Check the CQS objects as early as possible. By checking their alignment
|
* (required alignment equals to size for Sync32 and Sync64 objects), we can
|
* prevent overrunning the supplied event page.
|
*/
|
for (i = 0; i < nr_objs; i++) {
|
if (!kbase_kcpu_cqs_is_aligned(objs[i].addr, BASEP_CQS_DATA_TYPE_U32)) {
|
kfree(objs);
|
return -EINVAL;
|
}
|
}
|
|
if (++queue->cqs_wait_count == 1) {
|
if (kbase_csf_event_wait_add(queue->kctx,
|
event_cqs_callback, queue)) {
|
kfree(objs);
|
queue->cqs_wait_count--;
|
return -ENOMEM;
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_CQS_WAIT;
|
current_command->info.cqs_wait.nr_objs = nr_objs;
|
current_command->info.cqs_wait.objs = objs;
|
current_command->info.cqs_wait.inherit_err_flags =
|
cqs_wait_info->inherit_err_flags;
|
|
current_command->info.cqs_wait.signaled = kcalloc(BITS_TO_LONGS(nr_objs),
|
sizeof(*current_command->info.cqs_wait.signaled), GFP_KERNEL);
|
if (!current_command->info.cqs_wait.signaled) {
|
if (--queue->cqs_wait_count == 0) {
|
kbase_csf_event_wait_remove(queue->kctx,
|
event_cqs_callback, queue);
|
}
|
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
return 0;
|
}
|
|
static void kbase_kcpu_cqs_set_process(struct kbase_device *kbdev,
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_set_info *cqs_set)
|
{
|
unsigned int i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (WARN_ON(!cqs_set->objs))
|
return;
|
|
for (i = 0; i < cqs_set->nr_objs; i++) {
|
struct kbase_vmap_struct *mapping;
|
u32 *evt;
|
|
evt = (u32 *)kbase_phy_alloc_mapping_get(
|
queue->kctx, cqs_set->objs[i].addr, &mapping);
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_SET(kbdev, queue, evt ? 0 : 1);
|
|
if (!evt) {
|
dev_warn(kbdev->dev,
|
"Sync memory %llx already freed", cqs_set->objs[i].addr);
|
queue->has_error = true;
|
} else {
|
evt[BASEP_EVENT32_ERR_OFFSET / sizeof(u32)] = queue->has_error;
|
/* Set to signaled */
|
evt[BASEP_EVENT32_VAL_OFFSET / sizeof(u32)]++;
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kbdev, KCPU_CQS_SET, queue, cqs_set->objs[i].addr,
|
evt[BASEP_EVENT32_ERR_OFFSET / sizeof(u32)]);
|
}
|
}
|
|
kbase_csf_event_signal_notify_gpu(queue->kctx);
|
|
kfree(cqs_set->objs);
|
cqs_set->objs = NULL;
|
}
|
|
static int kbase_kcpu_cqs_set_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_cqs_set_info *cqs_set_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct base_cqs_set *objs;
|
unsigned int nr_objs = cqs_set_info->nr_objs;
|
unsigned int i;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (nr_objs > BASEP_KCPU_CQS_MAX_NUM_OBJS)
|
return -EINVAL;
|
|
if (!nr_objs)
|
return -EINVAL;
|
|
objs = kcalloc(nr_objs, sizeof(*objs), GFP_KERNEL);
|
if (!objs)
|
return -ENOMEM;
|
|
if (copy_from_user(objs, u64_to_user_ptr(cqs_set_info->objs),
|
nr_objs * sizeof(*objs))) {
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
/* Check the CQS objects as early as possible. By checking their alignment
|
* (required alignment equals to size for Sync32 and Sync64 objects), we can
|
* prevent overrunning the supplied event page.
|
*/
|
for (i = 0; i < nr_objs; i++) {
|
if (!kbase_kcpu_cqs_is_aligned(objs[i].addr, BASEP_CQS_DATA_TYPE_U32)) {
|
kfree(objs);
|
return -EINVAL;
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_CQS_SET;
|
current_command->info.cqs_set.nr_objs = nr_objs;
|
current_command->info.cqs_set.objs = objs;
|
|
return 0;
|
}
|
|
static void cleanup_cqs_wait_operation(struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_wait_operation_info *cqs_wait_operation)
|
{
|
WARN_ON(!cqs_wait_operation->nr_objs);
|
WARN_ON(!cqs_wait_operation->objs);
|
WARN_ON(!cqs_wait_operation->signaled);
|
WARN_ON(!queue->cqs_wait_count);
|
|
if (--queue->cqs_wait_count == 0) {
|
kbase_csf_event_wait_remove(queue->kctx,
|
event_cqs_callback, queue);
|
}
|
|
kfree(cqs_wait_operation->signaled);
|
kfree(cqs_wait_operation->objs);
|
cqs_wait_operation->signaled = NULL;
|
cqs_wait_operation->objs = NULL;
|
}
|
|
static int kbase_kcpu_cqs_wait_operation_process(struct kbase_device *kbdev,
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_wait_operation_info *cqs_wait_operation)
|
{
|
u32 i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (WARN_ON(!cqs_wait_operation->objs))
|
return -EINVAL;
|
|
/* Skip the CQS waits that have already been signaled when processing */
|
for (i = find_first_zero_bit(cqs_wait_operation->signaled, cqs_wait_operation->nr_objs); i < cqs_wait_operation->nr_objs; i++) {
|
if (!test_bit(i, cqs_wait_operation->signaled)) {
|
struct kbase_vmap_struct *mapping;
|
bool sig_set;
|
uintptr_t evt = (uintptr_t)kbase_phy_alloc_mapping_get(
|
queue->kctx, cqs_wait_operation->objs[i].addr, &mapping);
|
u64 val = 0;
|
|
if (!queue->command_started) {
|
queue->command_started = true;
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_WAIT_OPERATION_START(
|
kbdev, queue);
|
}
|
|
|
if (!evt) {
|
dev_warn(kbdev->dev,
|
"Sync memory %llx already freed", cqs_wait_operation->objs[i].addr);
|
queue->has_error = true;
|
return -EINVAL;
|
}
|
|
switch (cqs_wait_operation->objs[i].data_type) {
|
default:
|
WARN_ON(!kbase_kcpu_cqs_is_data_type_valid(
|
cqs_wait_operation->objs[i].data_type));
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
queue->has_error = true;
|
return -EINVAL;
|
case BASEP_CQS_DATA_TYPE_U32:
|
val = *(u32 *)evt;
|
evt += BASEP_EVENT32_ERR_OFFSET - BASEP_EVENT32_VAL_OFFSET;
|
break;
|
case BASEP_CQS_DATA_TYPE_U64:
|
val = *(u64 *)evt;
|
evt += BASEP_EVENT64_ERR_OFFSET - BASEP_EVENT64_VAL_OFFSET;
|
break;
|
}
|
|
switch (cqs_wait_operation->objs[i].operation) {
|
case BASEP_CQS_WAIT_OPERATION_LE:
|
sig_set = val <= cqs_wait_operation->objs[i].val;
|
break;
|
case BASEP_CQS_WAIT_OPERATION_GT:
|
sig_set = val > cqs_wait_operation->objs[i].val;
|
break;
|
default:
|
dev_dbg(kbdev->dev,
|
"Unsupported CQS wait operation %d", cqs_wait_operation->objs[i].operation);
|
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
queue->has_error = true;
|
|
return -EINVAL;
|
}
|
|
if (sig_set) {
|
bitmap_set(cqs_wait_operation->signaled, i, 1);
|
if ((cqs_wait_operation->inherit_err_flags & (1U << i)) &&
|
*(u32 *)evt > 0) {
|
queue->has_error = true;
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_WAIT_OPERATION_END(
|
kbdev, queue, *(u32 *)evt);
|
|
queue->command_started = false;
|
}
|
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
|
if (!sig_set)
|
break;
|
}
|
}
|
|
/* For the queue to progress further, all cqs objects should get
|
* signaled.
|
*/
|
return bitmap_full(cqs_wait_operation->signaled, cqs_wait_operation->nr_objs);
|
}
|
|
static int kbase_kcpu_cqs_wait_operation_prepare(struct kbase_kcpu_command_queue *queue,
|
struct base_kcpu_command_cqs_wait_operation_info *cqs_wait_operation_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct base_cqs_wait_operation_info *objs;
|
unsigned int nr_objs = cqs_wait_operation_info->nr_objs;
|
unsigned int i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (nr_objs > BASEP_KCPU_CQS_MAX_NUM_OBJS)
|
return -EINVAL;
|
|
if (!nr_objs)
|
return -EINVAL;
|
|
objs = kcalloc(nr_objs, sizeof(*objs), GFP_KERNEL);
|
if (!objs)
|
return -ENOMEM;
|
|
if (copy_from_user(objs, u64_to_user_ptr(cqs_wait_operation_info->objs),
|
nr_objs * sizeof(*objs))) {
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
/* Check the CQS objects as early as possible. By checking their alignment
|
* (required alignment equals to size for Sync32 and Sync64 objects), we can
|
* prevent overrunning the supplied event page.
|
*/
|
for (i = 0; i < nr_objs; i++) {
|
if (!kbase_kcpu_cqs_is_data_type_valid(objs[i].data_type) ||
|
!kbase_kcpu_cqs_is_aligned(objs[i].addr, objs[i].data_type)) {
|
kfree(objs);
|
return -EINVAL;
|
}
|
}
|
|
if (++queue->cqs_wait_count == 1) {
|
if (kbase_csf_event_wait_add(queue->kctx,
|
event_cqs_callback, queue)) {
|
kfree(objs);
|
queue->cqs_wait_count--;
|
return -ENOMEM;
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_CQS_WAIT_OPERATION;
|
current_command->info.cqs_wait_operation.nr_objs = nr_objs;
|
current_command->info.cqs_wait_operation.objs = objs;
|
current_command->info.cqs_wait_operation.inherit_err_flags =
|
cqs_wait_operation_info->inherit_err_flags;
|
|
current_command->info.cqs_wait_operation.signaled = kcalloc(BITS_TO_LONGS(nr_objs),
|
sizeof(*current_command->info.cqs_wait_operation.signaled), GFP_KERNEL);
|
if (!current_command->info.cqs_wait_operation.signaled) {
|
if (--queue->cqs_wait_count == 0) {
|
kbase_csf_event_wait_remove(queue->kctx,
|
event_cqs_callback, queue);
|
}
|
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
return 0;
|
}
|
|
static void kbasep_kcpu_cqs_do_set_operation_32(struct kbase_kcpu_command_queue *queue,
|
uintptr_t evt, u8 operation, u64 val)
|
{
|
struct kbase_device *kbdev = queue->kctx->kbdev;
|
|
switch (operation) {
|
case BASEP_CQS_SET_OPERATION_ADD:
|
*(u32 *)evt += (u32)val;
|
break;
|
case BASEP_CQS_SET_OPERATION_SET:
|
*(u32 *)evt = val;
|
break;
|
default:
|
dev_dbg(kbdev->dev, "Unsupported CQS set operation %d", operation);
|
queue->has_error = true;
|
break;
|
}
|
}
|
|
static void kbasep_kcpu_cqs_do_set_operation_64(struct kbase_kcpu_command_queue *queue,
|
uintptr_t evt, u8 operation, u64 val)
|
{
|
struct kbase_device *kbdev = queue->kctx->kbdev;
|
|
switch (operation) {
|
case BASEP_CQS_SET_OPERATION_ADD:
|
*(u64 *)evt += val;
|
break;
|
case BASEP_CQS_SET_OPERATION_SET:
|
*(u64 *)evt = val;
|
break;
|
default:
|
dev_dbg(kbdev->dev, "Unsupported CQS set operation %d", operation);
|
queue->has_error = true;
|
break;
|
}
|
}
|
|
static void kbase_kcpu_cqs_set_operation_process(
|
struct kbase_device *kbdev,
|
struct kbase_kcpu_command_queue *queue,
|
struct kbase_kcpu_command_cqs_set_operation_info *cqs_set_operation)
|
{
|
unsigned int i;
|
|
lockdep_assert_held(&queue->lock);
|
|
if (WARN_ON(!cqs_set_operation->objs))
|
return;
|
|
for (i = 0; i < cqs_set_operation->nr_objs; i++) {
|
struct kbase_vmap_struct *mapping;
|
uintptr_t evt;
|
|
evt = (uintptr_t)kbase_phy_alloc_mapping_get(
|
queue->kctx, cqs_set_operation->objs[i].addr, &mapping);
|
|
if (!evt) {
|
dev_warn(kbdev->dev,
|
"Sync memory %llx already freed", cqs_set_operation->objs[i].addr);
|
queue->has_error = true;
|
} else {
|
struct base_cqs_set_operation_info *obj = &cqs_set_operation->objs[i];
|
|
switch (obj->data_type) {
|
default:
|
WARN_ON(!kbase_kcpu_cqs_is_data_type_valid(obj->data_type));
|
queue->has_error = true;
|
goto skip_err_propagation;
|
case BASEP_CQS_DATA_TYPE_U32:
|
kbasep_kcpu_cqs_do_set_operation_32(queue, evt, obj->operation,
|
obj->val);
|
evt += BASEP_EVENT32_ERR_OFFSET - BASEP_EVENT32_VAL_OFFSET;
|
break;
|
case BASEP_CQS_DATA_TYPE_U64:
|
kbasep_kcpu_cqs_do_set_operation_64(queue, evt, obj->operation,
|
obj->val);
|
evt += BASEP_EVENT64_ERR_OFFSET - BASEP_EVENT64_VAL_OFFSET;
|
break;
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_CQS_SET_OPERATION(
|
kbdev, queue, *(u32 *)evt ? 1 : 0);
|
|
/* Always propagate errors */
|
*(u32 *)evt = queue->has_error;
|
|
skip_err_propagation:
|
kbase_phy_alloc_mapping_put(queue->kctx, mapping);
|
}
|
}
|
|
kbase_csf_event_signal_notify_gpu(queue->kctx);
|
|
kfree(cqs_set_operation->objs);
|
cqs_set_operation->objs = NULL;
|
}
|
|
static int kbase_kcpu_cqs_set_operation_prepare(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_cqs_set_operation_info *cqs_set_operation_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct base_cqs_set_operation_info *objs;
|
unsigned int nr_objs = cqs_set_operation_info->nr_objs;
|
unsigned int i;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (nr_objs > BASEP_KCPU_CQS_MAX_NUM_OBJS)
|
return -EINVAL;
|
|
if (!nr_objs)
|
return -EINVAL;
|
|
objs = kcalloc(nr_objs, sizeof(*objs), GFP_KERNEL);
|
if (!objs)
|
return -ENOMEM;
|
|
if (copy_from_user(objs, u64_to_user_ptr(cqs_set_operation_info->objs),
|
nr_objs * sizeof(*objs))) {
|
kfree(objs);
|
return -ENOMEM;
|
}
|
|
/* Check the CQS objects as early as possible. By checking their alignment
|
* (required alignment equals to size for Sync32 and Sync64 objects), we can
|
* prevent overrunning the supplied event page.
|
*/
|
for (i = 0; i < nr_objs; i++) {
|
if (!kbase_kcpu_cqs_is_data_type_valid(objs[i].data_type) ||
|
!kbase_kcpu_cqs_is_aligned(objs[i].addr, objs[i].data_type)) {
|
kfree(objs);
|
return -EINVAL;
|
}
|
}
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_CQS_SET_OPERATION;
|
current_command->info.cqs_set_operation.nr_objs = nr_objs;
|
current_command->info.cqs_set_operation.objs = objs;
|
|
return 0;
|
}
|
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
static void kbase_csf_fence_wait_callback(struct fence *fence,
|
struct fence_cb *cb)
|
#else
|
static void kbase_csf_fence_wait_callback(struct dma_fence *fence,
|
struct dma_fence_cb *cb)
|
#endif
|
{
|
struct kbase_kcpu_command_fence_info *fence_info = container_of(cb,
|
struct kbase_kcpu_command_fence_info, fence_cb);
|
struct kbase_kcpu_command_queue *kcpu_queue = fence_info->kcpu_queue;
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
|
/* Fence gets signaled. Deactivate the timer for fence-wait timeout */
|
del_timer(&kcpu_queue->fence_timeout);
|
#endif
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev, KCPU_FENCE_WAIT_END, kcpu_queue,
|
fence->context, fence->seqno);
|
|
/* Resume kcpu command queue processing. */
|
queue_work(kcpu_queue->wq, &kcpu_queue->work);
|
}
|
|
static void kbasep_kcpu_fence_wait_cancel(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command_fence_info *fence_info)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (WARN_ON(!fence_info->fence))
|
return;
|
|
if (kcpu_queue->fence_wait_processed) {
|
bool removed = dma_fence_remove_callback(fence_info->fence,
|
&fence_info->fence_cb);
|
|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
|
/* Fence-wait cancelled or fence signaled. In the latter case
|
* the timer would already have been deactivated inside
|
* kbase_csf_fence_wait_callback().
|
*/
|
del_timer_sync(&kcpu_queue->fence_timeout);
|
#endif
|
if (removed)
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev, KCPU_FENCE_WAIT_END,
|
kcpu_queue, fence_info->fence->context,
|
fence_info->fence->seqno);
|
}
|
|
/* Release the reference which is kept by the kcpu_queue */
|
kbase_fence_put(fence_info->fence);
|
kcpu_queue->fence_wait_processed = false;
|
|
fence_info->fence = NULL;
|
}
|
|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
|
/**
|
* fence_timeout_callback() - Timeout callback function for fence-wait
|
*
|
* @timer: Timer struct
|
*
|
* Context and seqno of the timed-out fence will be displayed in dmesg.
|
* If the fence has been signalled a work will be enqueued to process
|
* the fence-wait without displaying debugging information.
|
*/
|
static void fence_timeout_callback(struct timer_list *timer)
|
{
|
struct kbase_kcpu_command_queue *kcpu_queue =
|
container_of(timer, struct kbase_kcpu_command_queue, fence_timeout);
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
struct kbase_kcpu_command *cmd = &kcpu_queue->commands[kcpu_queue->start_offset];
|
struct kbase_kcpu_command_fence_info *fence_info;
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
struct fence *fence;
|
#else
|
struct dma_fence *fence;
|
#endif
|
struct kbase_sync_fence_info info;
|
|
if (cmd->type != BASE_KCPU_COMMAND_TYPE_FENCE_WAIT) {
|
dev_err(kctx->kbdev->dev,
|
"%s: Unexpected command type %d in ctx:%d_%d kcpu queue:%u", __func__,
|
cmd->type, kctx->tgid, kctx->id, kcpu_queue->id);
|
return;
|
}
|
|
fence_info = &cmd->info.fence;
|
|
fence = kbase_fence_get(fence_info);
|
if (!fence) {
|
dev_err(kctx->kbdev->dev, "no fence found in ctx:%d_%d kcpu queue:%u", kctx->tgid,
|
kctx->id, kcpu_queue->id);
|
return;
|
}
|
|
kbase_sync_fence_info_get(fence, &info);
|
|
if (info.status == 1) {
|
queue_work(kcpu_queue->wq, &kcpu_queue->work);
|
} else if (info.status == 0) {
|
dev_warn(kctx->kbdev->dev, "fence has not yet signalled in %ums",
|
FENCE_WAIT_TIMEOUT_MS);
|
dev_warn(kctx->kbdev->dev,
|
"ctx:%d_%d kcpu queue:%u still waiting for fence[%pK] context#seqno:%s",
|
kctx->tgid, kctx->id, kcpu_queue->id, fence, info.name);
|
} else {
|
dev_warn(kctx->kbdev->dev, "fence has got error");
|
dev_warn(kctx->kbdev->dev,
|
"ctx:%d_%d kcpu queue:%u faulty fence[%pK] context#seqno:%s error(%d)",
|
kctx->tgid, kctx->id, kcpu_queue->id, fence, info.name, info.status);
|
}
|
|
kbase_fence_put(fence);
|
}
|
|
/**
|
* fence_timeout_start() - Start a timer to check fence-wait timeout
|
*
|
* @cmd: KCPU command queue
|
*
|
* Activate a timer to check whether a fence-wait command in the queue
|
* gets completed within FENCE_WAIT_TIMEOUT_MS
|
*/
|
static void fence_timeout_start(struct kbase_kcpu_command_queue *cmd)
|
{
|
mod_timer(&cmd->fence_timeout, jiffies + msecs_to_jiffies(FENCE_WAIT_TIMEOUT_MS));
|
}
|
#endif
|
|
/**
|
* kbase_kcpu_fence_wait_process() - Process the kcpu fence wait command
|
*
|
* @kcpu_queue: The queue containing the fence wait command
|
* @fence_info: Reference to a fence for which the command is waiting
|
*
|
* Return: 0 if fence wait is blocked, 1 if it is unblocked, negative error if
|
* an error has occurred and fence should no longer be waited on.
|
*/
|
static int kbase_kcpu_fence_wait_process(
|
struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command_fence_info *fence_info)
|
{
|
int fence_status = 0;
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
struct fence *fence;
|
#else
|
struct dma_fence *fence;
|
#endif
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (WARN_ON(!fence_info->fence))
|
return -EINVAL;
|
|
fence = fence_info->fence;
|
|
if (kcpu_queue->fence_wait_processed) {
|
fence_status = dma_fence_get_status(fence);
|
} else {
|
int cb_err = dma_fence_add_callback(fence,
|
&fence_info->fence_cb,
|
kbase_csf_fence_wait_callback);
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev,
|
KCPU_FENCE_WAIT_START, kcpu_queue,
|
fence->context, fence->seqno);
|
fence_status = cb_err;
|
if (cb_err == 0) {
|
kcpu_queue->fence_wait_processed = true;
|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
|
fence_timeout_start(kcpu_queue);
|
#endif
|
} else if (cb_err == -ENOENT) {
|
fence_status = dma_fence_get_status(fence);
|
if (!fence_status) {
|
struct kbase_sync_fence_info info;
|
|
kbase_sync_fence_info_get(fence, &info);
|
dev_warn(kctx->kbdev->dev,
|
"Unexpected status for fence %s of ctx:%d_%d kcpu queue:%u",
|
info.name, kctx->tgid, kctx->id, kcpu_queue->id);
|
}
|
}
|
}
|
|
/*
|
* At this point fence status can contain 3 types of values:
|
* - Value 0 to represent that fence in question is not signalled yet
|
* - Value 1 to represent that fence in question is signalled without
|
* errors
|
* - Negative error code to represent that some error has occurred such
|
* that waiting on it is no longer valid.
|
*/
|
|
if (fence_status)
|
kbasep_kcpu_fence_wait_cancel(kcpu_queue, fence_info);
|
|
return fence_status;
|
}
|
|
static int kbase_kcpu_fence_wait_prepare(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_fence_info *fence_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
struct fence *fence_in;
|
#else
|
struct dma_fence *fence_in;
|
#endif
|
struct base_fence fence;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (copy_from_user(&fence, u64_to_user_ptr(fence_info->fence), sizeof(fence)))
|
return -ENOMEM;
|
|
fence_in = sync_file_get_fence(fence.basep.fd);
|
|
if (!fence_in)
|
return -ENOENT;
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_FENCE_WAIT;
|
current_command->info.fence.fence = fence_in;
|
current_command->info.fence.kcpu_queue = kcpu_queue;
|
return 0;
|
}
|
|
static int kbasep_kcpu_fence_signal_process(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command_fence_info *fence_info)
|
{
|
struct kbase_context *const kctx = kcpu_queue->kctx;
|
int ret;
|
|
if (WARN_ON(!fence_info->fence))
|
return -EINVAL;
|
|
ret = dma_fence_signal(fence_info->fence);
|
|
if (unlikely(ret < 0)) {
|
dev_warn(kctx->kbdev->dev, "dma_fence(%d) has been signalled already\n", ret);
|
/* Treated as a success */
|
ret = 0;
|
}
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev, KCPU_FENCE_SIGNAL, kcpu_queue,
|
fence_info->fence->context,
|
fence_info->fence->seqno);
|
|
/* dma_fence refcount needs to be decreased to release it. */
|
kbase_fence_put(fence_info->fence);
|
fence_info->fence = NULL;
|
|
return ret;
|
}
|
|
static int kbasep_kcpu_fence_signal_init(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command *current_command,
|
struct base_fence *fence, struct sync_file **sync_file,
|
int *fd)
|
{
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
struct fence *fence_out;
|
#else
|
struct dma_fence *fence_out;
|
#endif
|
struct kbase_kcpu_dma_fence *kcpu_fence;
|
int ret = 0;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
kcpu_fence = kzalloc(sizeof(*kcpu_fence), GFP_KERNEL);
|
if (!kcpu_fence)
|
return -ENOMEM;
|
|
#if (KERNEL_VERSION(4, 10, 0) > LINUX_VERSION_CODE)
|
fence_out = (struct fence *)kcpu_fence;
|
#else
|
fence_out = (struct dma_fence *)kcpu_fence;
|
#endif
|
|
dma_fence_init(fence_out,
|
&kbase_fence_ops,
|
&kbase_csf_fence_lock,
|
kcpu_queue->fence_context,
|
++kcpu_queue->fence_seqno);
|
|
#if (KERNEL_VERSION(4, 9, 67) >= LINUX_VERSION_CODE)
|
/* Take an extra reference to the fence on behalf of the sync file.
|
* This is only needded on older kernels where sync_file_create()
|
* does not take its own reference. This was changed in v4.9.68
|
* where sync_file_create() now takes its own reference.
|
*/
|
dma_fence_get(fence_out);
|
#endif
|
|
/* Set reference to KCPU metadata and increment refcount */
|
kcpu_fence->metadata = kcpu_queue->metadata;
|
WARN_ON(!kbase_refcount_inc_not_zero(&kcpu_fence->metadata->refcount));
|
|
/* create a sync_file fd representing the fence */
|
*sync_file = sync_file_create(fence_out);
|
if (!(*sync_file)) {
|
ret = -ENOMEM;
|
goto file_create_fail;
|
}
|
|
*fd = get_unused_fd_flags(O_CLOEXEC);
|
if (*fd < 0) {
|
ret = *fd;
|
goto fd_flags_fail;
|
}
|
|
fence->basep.fd = *fd;
|
|
current_command->type = BASE_KCPU_COMMAND_TYPE_FENCE_SIGNAL;
|
current_command->info.fence.fence = fence_out;
|
|
return 0;
|
|
fd_flags_fail:
|
fput((*sync_file)->file);
|
file_create_fail:
|
/*
|
* Upon failure, dma_fence refcount that was increased by
|
* dma_fence_get() or sync_file_create() needs to be decreased
|
* to release it.
|
*/
|
kbase_fence_put(fence_out);
|
current_command->info.fence.fence = NULL;
|
|
return ret;
|
}
|
|
static int kbase_kcpu_fence_signal_prepare(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct base_kcpu_command_fence_info *fence_info,
|
struct kbase_kcpu_command *current_command)
|
{
|
struct base_fence fence;
|
struct sync_file *sync_file = NULL;
|
int fd;
|
int ret = 0;
|
|
lockdep_assert_held(&kcpu_queue->lock);
|
|
if (copy_from_user(&fence, u64_to_user_ptr(fence_info->fence), sizeof(fence)))
|
return -EFAULT;
|
|
ret = kbasep_kcpu_fence_signal_init(kcpu_queue, current_command, &fence, &sync_file, &fd);
|
if (ret)
|
return ret;
|
|
if (copy_to_user(u64_to_user_ptr(fence_info->fence), &fence,
|
sizeof(fence))) {
|
ret = -EFAULT;
|
goto fail;
|
}
|
|
/* 'sync_file' pointer can't be safely dereferenced once 'fd' is
|
* installed, so the install step needs to be done at the last
|
* before returning success.
|
*/
|
fd_install(fd, sync_file->file);
|
return 0;
|
|
fail:
|
fput(sync_file->file);
|
kbase_fence_put(current_command->info.fence.fence);
|
current_command->info.fence.fence = NULL;
|
|
return ret;
|
}
|
|
int kbase_kcpu_fence_signal_process(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command_fence_info *fence_info)
|
{
|
if (!kcpu_queue || !fence_info)
|
return -EINVAL;
|
|
return kbasep_kcpu_fence_signal_process(kcpu_queue, fence_info);
|
}
|
KBASE_EXPORT_TEST_API(kbase_kcpu_fence_signal_process);
|
|
int kbase_kcpu_fence_signal_init(struct kbase_kcpu_command_queue *kcpu_queue,
|
struct kbase_kcpu_command *current_command,
|
struct base_fence *fence, struct sync_file **sync_file, int *fd)
|
{
|
if (!kcpu_queue || !current_command || !fence || !sync_file || !fd)
|
return -EINVAL;
|
|
return kbasep_kcpu_fence_signal_init(kcpu_queue, current_command, fence, sync_file, fd);
|
}
|
KBASE_EXPORT_TEST_API(kbase_kcpu_fence_signal_init);
|
#endif /* CONFIG_SYNC_FILE */
|
|
static void kcpu_queue_process_worker(struct work_struct *data)
|
{
|
struct kbase_kcpu_command_queue *queue = container_of(data,
|
struct kbase_kcpu_command_queue, work);
|
|
mutex_lock(&queue->lock);
|
kcpu_queue_process(queue, false);
|
mutex_unlock(&queue->lock);
|
}
|
|
static int delete_queue(struct kbase_context *kctx, u32 id)
|
{
|
int err = 0;
|
|
mutex_lock(&kctx->csf.kcpu_queues.lock);
|
|
if ((id < KBASEP_MAX_KCPU_QUEUES) && kctx->csf.kcpu_queues.array[id]) {
|
struct kbase_kcpu_command_queue *queue =
|
kctx->csf.kcpu_queues.array[id];
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev, KCPU_QUEUE_DELETE,
|
queue, queue->num_pending_cmds, queue->cqs_wait_count);
|
|
/* Disassociate the queue from the system to prevent further
|
* submissions. Draining pending commands would be acceptable
|
* even if a new queue is created using the same ID.
|
*/
|
kctx->csf.kcpu_queues.array[id] = NULL;
|
bitmap_clear(kctx->csf.kcpu_queues.in_use, id, 1);
|
|
mutex_unlock(&kctx->csf.kcpu_queues.lock);
|
|
mutex_lock(&queue->lock);
|
|
/* Metadata struct may outlive KCPU queue. */
|
kbase_kcpu_dma_fence_meta_put(queue->metadata);
|
|
/* Drain the remaining work for this queue first and go past
|
* all the waits.
|
*/
|
kcpu_queue_process(queue, true);
|
|
/* All commands should have been processed */
|
WARN_ON(queue->num_pending_cmds);
|
|
/* All CQS wait commands should have been cleaned up */
|
WARN_ON(queue->cqs_wait_count);
|
|
/* Fire the tracepoint with the mutex held to enforce correct
|
* ordering with the summary stream.
|
*/
|
KBASE_TLSTREAM_TL_KBASE_DEL_KCPUQUEUE(kctx->kbdev, queue);
|
|
mutex_unlock(&queue->lock);
|
|
cancel_work_sync(&queue->work);
|
destroy_workqueue(queue->wq);
|
|
mutex_destroy(&queue->lock);
|
|
kfree(queue);
|
} else {
|
dev_dbg(kctx->kbdev->dev,
|
"Attempt to delete a non-existent KCPU queue");
|
mutex_unlock(&kctx->csf.kcpu_queues.lock);
|
err = -EINVAL;
|
}
|
return err;
|
}
|
|
static void KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_ALLOC_INFO(
|
struct kbase_device *kbdev,
|
const struct kbase_kcpu_command_queue *queue,
|
const struct kbase_kcpu_command_jit_alloc_info *jit_alloc,
|
int alloc_status)
|
{
|
u8 i;
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_BEGIN_KCPUQUEUE_EXECUTE_JIT_ALLOC_END(kbdev, queue);
|
for (i = 0; i < jit_alloc->count; i++) {
|
const u8 id = jit_alloc->info[i].id;
|
const struct kbase_va_region *reg = queue->kctx->jit_alloc[id];
|
u64 gpu_alloc_addr = 0;
|
u64 mmu_flags = 0;
|
|
if ((alloc_status == 0) && !WARN_ON(!reg) &&
|
!WARN_ON(reg == KBASE_RESERVED_REG_JIT_ALLOC)) {
|
#ifdef CONFIG_MALI_VECTOR_DUMP
|
struct tagged_addr phy = {0};
|
#endif /* CONFIG_MALI_VECTOR_DUMP */
|
|
gpu_alloc_addr = reg->start_pfn << PAGE_SHIFT;
|
#ifdef CONFIG_MALI_VECTOR_DUMP
|
mmu_flags = kbase_mmu_create_ate(kbdev,
|
phy, reg->flags,
|
MIDGARD_MMU_BOTTOMLEVEL,
|
queue->kctx->jit_group_id);
|
#endif /* CONFIG_MALI_VECTOR_DUMP */
|
}
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_ITEM_KCPUQUEUE_EXECUTE_JIT_ALLOC_END(
|
kbdev, queue, alloc_status, gpu_alloc_addr, mmu_flags);
|
}
|
}
|
|
static void KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_ALLOC_END(
|
struct kbase_device *kbdev,
|
const struct kbase_kcpu_command_queue *queue)
|
{
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_END_KCPUQUEUE_EXECUTE_JIT_ALLOC_END(kbdev, queue);
|
}
|
|
static void KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_FREE_END(
|
struct kbase_device *kbdev,
|
const struct kbase_kcpu_command_queue *queue)
|
{
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_END_KCPUQUEUE_EXECUTE_JIT_FREE_END(kbdev, queue);
|
}
|
|
static void kcpu_queue_process(struct kbase_kcpu_command_queue *queue,
|
bool drain_queue)
|
{
|
struct kbase_device *kbdev = queue->kctx->kbdev;
|
bool process_next = true;
|
size_t i;
|
|
lockdep_assert_held(&queue->lock);
|
|
for (i = 0; i != queue->num_pending_cmds; ++i) {
|
struct kbase_kcpu_command *cmd =
|
&queue->commands[(u8)(queue->start_offset + i)];
|
int status;
|
|
switch (cmd->type) {
|
case BASE_KCPU_COMMAND_TYPE_FENCE_WAIT:
|
if (!queue->command_started) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_FENCE_WAIT_START(kbdev,
|
queue);
|
queue->command_started = true;
|
}
|
|
status = 0;
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
if (drain_queue) {
|
kbasep_kcpu_fence_wait_cancel(queue, &cmd->info.fence);
|
} else {
|
status = kbase_kcpu_fence_wait_process(queue,
|
&cmd->info.fence);
|
|
if (status == 0)
|
process_next = false;
|
else if (status < 0)
|
queue->has_error = true;
|
}
|
#else
|
dev_warn(kbdev->dev,
|
"unexpected fence wait command found\n");
|
|
status = -EINVAL;
|
queue->has_error = true;
|
#endif
|
|
if (process_next) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_FENCE_WAIT_END(
|
kbdev, queue, status < 0 ? status : 0);
|
queue->command_started = false;
|
}
|
break;
|
case BASE_KCPU_COMMAND_TYPE_FENCE_SIGNAL:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_FENCE_SIGNAL_START(kbdev, queue);
|
|
status = 0;
|
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
status = kbasep_kcpu_fence_signal_process(queue, &cmd->info.fence);
|
|
if (status < 0)
|
queue->has_error = true;
|
#else
|
dev_warn(kbdev->dev,
|
"unexpected fence signal command found\n");
|
|
status = -EINVAL;
|
queue->has_error = true;
|
#endif
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_FENCE_SIGNAL_END(kbdev, queue,
|
status);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT:
|
status = kbase_kcpu_cqs_wait_process(kbdev, queue,
|
&cmd->info.cqs_wait);
|
|
if (!status && !drain_queue) {
|
process_next = false;
|
} else {
|
/* Either all CQS objects were signaled or
|
* there was an error or the queue itself is
|
* being deleted.
|
* In all cases can move to the next command.
|
* TBD: handle the error
|
*/
|
cleanup_cqs_wait(queue, &cmd->info.cqs_wait);
|
}
|
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET:
|
kbase_kcpu_cqs_set_process(kbdev, queue,
|
&cmd->info.cqs_set);
|
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT_OPERATION:
|
status = kbase_kcpu_cqs_wait_operation_process(kbdev, queue,
|
&cmd->info.cqs_wait_operation);
|
|
if (!status && !drain_queue) {
|
process_next = false;
|
} else {
|
/* Either all CQS objects were signaled or
|
* there was an error or the queue itself is
|
* being deleted.
|
* In all cases can move to the next command.
|
* TBD: handle the error
|
*/
|
cleanup_cqs_wait_operation(queue, &cmd->info.cqs_wait_operation);
|
}
|
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET_OPERATION:
|
kbase_kcpu_cqs_set_operation_process(kbdev, queue,
|
&cmd->info.cqs_set_operation);
|
|
break;
|
case BASE_KCPU_COMMAND_TYPE_ERROR_BARRIER:
|
/* Clear the queue's error state */
|
queue->has_error = false;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_ERROR_BARRIER(kbdev, queue);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_MAP_IMPORT: {
|
struct kbase_ctx_ext_res_meta *meta = NULL;
|
|
if (!drain_queue) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_MAP_IMPORT_START(kbdev,
|
queue);
|
|
kbase_gpu_vm_lock(queue->kctx);
|
meta = kbase_sticky_resource_acquire(
|
queue->kctx, cmd->info.import.gpu_va);
|
kbase_gpu_vm_unlock(queue->kctx);
|
|
if (meta == NULL) {
|
queue->has_error = true;
|
dev_dbg(
|
kbdev->dev,
|
"failed to map an external resource");
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_MAP_IMPORT_END(
|
kbdev, queue, meta ? 0 : 1);
|
}
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT: {
|
bool ret;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_UNMAP_IMPORT_START(kbdev, queue);
|
|
kbase_gpu_vm_lock(queue->kctx);
|
ret = kbase_sticky_resource_release(
|
queue->kctx, NULL, cmd->info.import.gpu_va);
|
kbase_gpu_vm_unlock(queue->kctx);
|
|
if (!ret) {
|
queue->has_error = true;
|
dev_dbg(kbdev->dev,
|
"failed to release the reference. resource not found");
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_UNMAP_IMPORT_END(kbdev, queue,
|
ret ? 0 : 1);
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT_FORCE: {
|
bool ret;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_UNMAP_IMPORT_FORCE_START(kbdev,
|
queue);
|
|
kbase_gpu_vm_lock(queue->kctx);
|
ret = kbase_sticky_resource_release_force(
|
queue->kctx, NULL, cmd->info.import.gpu_va);
|
kbase_gpu_vm_unlock(queue->kctx);
|
|
if (!ret) {
|
queue->has_error = true;
|
dev_dbg(kbdev->dev,
|
"failed to release the reference. resource not found");
|
}
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_UNMAP_IMPORT_FORCE_END(
|
kbdev, queue, ret ? 0 : 1);
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_JIT_ALLOC:
|
{
|
if (drain_queue) {
|
/* We still need to call this function to clean the JIT alloc info up */
|
kbase_kcpu_jit_allocate_finish(queue, cmd);
|
} else {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_ALLOC_START(kbdev,
|
queue);
|
|
status = kbase_kcpu_jit_allocate_process(queue,
|
cmd);
|
if (status == -EAGAIN) {
|
process_next = false;
|
} else {
|
if (status != 0)
|
queue->has_error = true;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_ALLOC_INFO(
|
kbdev, queue,
|
&cmd->info.jit_alloc, status);
|
|
kbase_kcpu_jit_allocate_finish(queue,
|
cmd);
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_ALLOC_END(
|
kbdev, queue);
|
}
|
}
|
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_JIT_FREE: {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_FREE_START(kbdev, queue);
|
|
status = kbase_kcpu_jit_free_process(queue, cmd);
|
if (status)
|
queue->has_error = true;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_JIT_FREE_END(
|
kbdev, queue);
|
break;
|
}
|
#if IS_ENABLED(CONFIG_MALI_VECTOR_DUMP) || MALI_UNIT_TEST
|
case BASE_KCPU_COMMAND_TYPE_GROUP_SUSPEND: {
|
struct kbase_suspend_copy_buffer *sus_buf =
|
cmd->info.suspend_buf_copy.sus_buf;
|
|
if (!drain_queue) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_GROUP_SUSPEND_START(
|
kbdev, queue);
|
|
status = kbase_csf_queue_group_suspend_process(
|
queue->kctx, sus_buf,
|
cmd->info.suspend_buf_copy.group_handle);
|
if (status)
|
queue->has_error = true;
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_EXECUTE_GROUP_SUSPEND_END(
|
kbdev, queue, status);
|
}
|
|
if (!sus_buf->cpu_alloc) {
|
int i;
|
|
for (i = 0; i < sus_buf->nr_pages; i++)
|
put_page(sus_buf->pages[i]);
|
} else {
|
kbase_mem_phy_alloc_kernel_unmapped(
|
sus_buf->cpu_alloc);
|
kbase_mem_phy_alloc_put(
|
sus_buf->cpu_alloc);
|
}
|
|
kfree(sus_buf->pages);
|
kfree(sus_buf);
|
break;
|
}
|
#endif
|
default:
|
dev_dbg(kbdev->dev,
|
"Unrecognized command type");
|
break;
|
} /* switch */
|
|
/*TBD: error handling */
|
|
if (!process_next)
|
break;
|
}
|
|
if (i > 0) {
|
queue->start_offset += i;
|
queue->num_pending_cmds -= i;
|
|
/* If an attempt to enqueue commands failed then we must raise
|
* an event in case the client wants to retry now that there is
|
* free space in the buffer.
|
*/
|
if (queue->enqueue_failed) {
|
queue->enqueue_failed = false;
|
kbase_csf_event_signal_cpu_only(queue->kctx);
|
}
|
}
|
}
|
|
static size_t kcpu_queue_get_space(struct kbase_kcpu_command_queue *queue)
|
{
|
return KBASEP_KCPU_QUEUE_SIZE - queue->num_pending_cmds;
|
}
|
|
static void KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_COMMAND(
|
const struct kbase_kcpu_command_queue *queue,
|
const struct kbase_kcpu_command *cmd)
|
{
|
struct kbase_device *kbdev = queue->kctx->kbdev;
|
|
switch (cmd->type) {
|
case BASE_KCPU_COMMAND_TYPE_FENCE_WAIT:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_FENCE_WAIT(kbdev, queue,
|
cmd->info.fence.fence);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_FENCE_SIGNAL:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_FENCE_SIGNAL(kbdev, queue,
|
cmd->info.fence.fence);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT:
|
{
|
const struct base_cqs_wait_info *waits =
|
cmd->info.cqs_wait.objs;
|
u32 inherit_err_flags = cmd->info.cqs_wait.inherit_err_flags;
|
unsigned int i;
|
|
for (i = 0; i < cmd->info.cqs_wait.nr_objs; i++) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_CQS_WAIT(
|
kbdev, queue, waits[i].addr, waits[i].val,
|
(inherit_err_flags & ((u32)1 << i)) ? 1 : 0);
|
}
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET:
|
{
|
const struct base_cqs_set *sets = cmd->info.cqs_set.objs;
|
unsigned int i;
|
|
for (i = 0; i < cmd->info.cqs_set.nr_objs; i++) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_CQS_SET(kbdev, queue,
|
sets[i].addr);
|
}
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT_OPERATION:
|
{
|
const struct base_cqs_wait_operation_info *waits =
|
cmd->info.cqs_wait_operation.objs;
|
u32 inherit_err_flags = cmd->info.cqs_wait_operation.inherit_err_flags;
|
unsigned int i;
|
|
for (i = 0; i < cmd->info.cqs_wait_operation.nr_objs; i++) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_CQS_WAIT_OPERATION(
|
kbdev, queue, waits[i].addr, waits[i].val,
|
waits[i].operation, waits[i].data_type,
|
(inherit_err_flags & ((uint32_t)1 << i)) ? 1 : 0);
|
}
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET_OPERATION:
|
{
|
const struct base_cqs_set_operation_info *sets = cmd->info.cqs_set_operation.objs;
|
unsigned int i;
|
|
for (i = 0; i < cmd->info.cqs_set_operation.nr_objs; i++) {
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_CQS_SET_OPERATION(
|
kbdev, queue, sets[i].addr, sets[i].val,
|
sets[i].operation, sets[i].data_type);
|
}
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_ERROR_BARRIER:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_ERROR_BARRIER(kbdev, queue);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_MAP_IMPORT:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_MAP_IMPORT(kbdev, queue,
|
cmd->info.import.gpu_va);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_UNMAP_IMPORT(kbdev, queue,
|
cmd->info.import.gpu_va);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT_FORCE:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_UNMAP_IMPORT_FORCE(
|
kbdev, queue, cmd->info.import.gpu_va);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_JIT_ALLOC:
|
{
|
u8 i;
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_BEGIN_KCPUQUEUE_ENQUEUE_JIT_ALLOC(kbdev, queue);
|
for (i = 0; i < cmd->info.jit_alloc.count; i++) {
|
const struct base_jit_alloc_info *info =
|
&cmd->info.jit_alloc.info[i];
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_ITEM_KCPUQUEUE_ENQUEUE_JIT_ALLOC(
|
kbdev, queue, info->gpu_alloc_addr, info->va_pages,
|
info->commit_pages, info->extension, info->id, info->bin_id,
|
info->max_allocations, info->flags, info->usage_id);
|
}
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_END_KCPUQUEUE_ENQUEUE_JIT_ALLOC(kbdev, queue);
|
break;
|
}
|
case BASE_KCPU_COMMAND_TYPE_JIT_FREE:
|
{
|
u8 i;
|
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_BEGIN_KCPUQUEUE_ENQUEUE_JIT_FREE(kbdev, queue);
|
for (i = 0; i < cmd->info.jit_free.count; i++) {
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_ITEM_KCPUQUEUE_ENQUEUE_JIT_FREE(
|
kbdev, queue, cmd->info.jit_free.ids[i]);
|
}
|
KBASE_TLSTREAM_TL_KBASE_ARRAY_END_KCPUQUEUE_ENQUEUE_JIT_FREE(kbdev, queue);
|
break;
|
}
|
#if IS_ENABLED(CONFIG_MALI_VECTOR_DUMP) || MALI_UNIT_TEST
|
case BASE_KCPU_COMMAND_TYPE_GROUP_SUSPEND:
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_GROUP_SUSPEND(
|
kbdev, queue, cmd->info.suspend_buf_copy.sus_buf,
|
cmd->info.suspend_buf_copy.group_handle);
|
break;
|
#endif
|
default:
|
dev_dbg(kbdev->dev, "Unknown command type %u", cmd->type);
|
break;
|
}
|
}
|
|
int kbase_csf_kcpu_queue_enqueue(struct kbase_context *kctx,
|
struct kbase_ioctl_kcpu_queue_enqueue *enq)
|
{
|
struct kbase_kcpu_command_queue *queue = NULL;
|
void __user *user_cmds = u64_to_user_ptr(enq->addr);
|
int ret = 0;
|
u32 i;
|
|
/* The offset to the first command that is being processed or yet to
|
* be processed is of u8 type, so the number of commands inside the
|
* queue cannot be more than 256. The current implementation expects
|
* exactly 256, any other size will require the addition of wrapping
|
* logic.
|
*/
|
BUILD_BUG_ON(KBASEP_KCPU_QUEUE_SIZE != 256);
|
|
/* Whilst the backend interface allows enqueueing multiple commands in
|
* a single operation, the Base interface does not expose any mechanism
|
* to do so. And also right now the handling is missing for the case
|
* where multiple commands are submitted and the enqueue of one of the
|
* command in the set fails after successfully enqueuing other commands
|
* in the set.
|
*/
|
if (enq->nr_commands != 1) {
|
dev_dbg(kctx->kbdev->dev,
|
"More than one commands enqueued");
|
return -EINVAL;
|
}
|
|
/* There might be a race between one thread trying to enqueue commands to the queue
|
* and other thread trying to delete the same queue.
|
* This racing could lead to use-after-free problem by enqueuing thread if
|
* resources for the queue has already been freed by deleting thread.
|
*
|
* To prevent the issue, two mutexes are acquired/release asymmetrically as follows.
|
*
|
* Lock A (kctx mutex)
|
* Lock B (queue mutex)
|
* Unlock A
|
* Unlock B
|
*
|
* With the kctx mutex being held, enqueuing thread will check the queue
|
* and will return error code if the queue had already been deleted.
|
*/
|
mutex_lock(&kctx->csf.kcpu_queues.lock);
|
queue = kctx->csf.kcpu_queues.array[enq->id];
|
if (queue == NULL) {
|
dev_dbg(kctx->kbdev->dev, "Invalid KCPU queue (id:%u)", enq->id);
|
mutex_unlock(&kctx->csf.kcpu_queues.lock);
|
return -EINVAL;
|
}
|
mutex_lock(&queue->lock);
|
mutex_unlock(&kctx->csf.kcpu_queues.lock);
|
|
if (kcpu_queue_get_space(queue) < enq->nr_commands) {
|
ret = -EBUSY;
|
queue->enqueue_failed = true;
|
goto out;
|
}
|
|
/* Copy all command's info to the command buffer.
|
* Note: it would be more efficient to process all commands in-line
|
* until we encounter an unresolved CQS_ / FENCE_WAIT, however, the
|
* interface allows multiple commands to be enqueued so we must account
|
* for the possibility to roll back.
|
*/
|
|
for (i = 0; (i != enq->nr_commands) && !ret; ++i) {
|
struct kbase_kcpu_command *kcpu_cmd =
|
&queue->commands[(u8)(queue->start_offset + queue->num_pending_cmds + i)];
|
struct base_kcpu_command command;
|
unsigned int j;
|
|
if (copy_from_user(&command, user_cmds, sizeof(command))) {
|
ret = -EFAULT;
|
goto out;
|
}
|
|
user_cmds = (void __user *)((uintptr_t)user_cmds +
|
sizeof(struct base_kcpu_command));
|
|
for (j = 0; j < sizeof(command.padding); j++) {
|
if (command.padding[j] != 0) {
|
dev_dbg(kctx->kbdev->dev,
|
"base_kcpu_command padding not 0\n");
|
ret = -EINVAL;
|
goto out;
|
}
|
}
|
|
kcpu_cmd->enqueue_ts = atomic64_inc_return(&kctx->csf.kcpu_queues.cmd_seq_num);
|
switch (command.type) {
|
case BASE_KCPU_COMMAND_TYPE_FENCE_WAIT:
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
ret = kbase_kcpu_fence_wait_prepare(queue,
|
&command.info.fence, kcpu_cmd);
|
#else
|
ret = -EINVAL;
|
dev_warn(kctx->kbdev->dev, "fence wait command unsupported\n");
|
#endif
|
break;
|
case BASE_KCPU_COMMAND_TYPE_FENCE_SIGNAL:
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
ret = kbase_kcpu_fence_signal_prepare(queue,
|
&command.info.fence, kcpu_cmd);
|
#else
|
ret = -EINVAL;
|
dev_warn(kctx->kbdev->dev, "fence signal command unsupported\n");
|
#endif
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT:
|
ret = kbase_kcpu_cqs_wait_prepare(queue,
|
&command.info.cqs_wait, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET:
|
ret = kbase_kcpu_cqs_set_prepare(queue,
|
&command.info.cqs_set, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_WAIT_OPERATION:
|
ret = kbase_kcpu_cqs_wait_operation_prepare(queue,
|
&command.info.cqs_wait_operation, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_CQS_SET_OPERATION:
|
ret = kbase_kcpu_cqs_set_operation_prepare(queue,
|
&command.info.cqs_set_operation, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_ERROR_BARRIER:
|
kcpu_cmd->type = BASE_KCPU_COMMAND_TYPE_ERROR_BARRIER;
|
ret = 0;
|
break;
|
case BASE_KCPU_COMMAND_TYPE_MAP_IMPORT:
|
ret = kbase_kcpu_map_import_prepare(queue,
|
&command.info.import, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT:
|
ret = kbase_kcpu_unmap_import_prepare(queue,
|
&command.info.import, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_UNMAP_IMPORT_FORCE:
|
ret = kbase_kcpu_unmap_import_force_prepare(queue,
|
&command.info.import, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_JIT_ALLOC:
|
ret = kbase_kcpu_jit_allocate_prepare(queue,
|
&command.info.jit_alloc, kcpu_cmd);
|
break;
|
case BASE_KCPU_COMMAND_TYPE_JIT_FREE:
|
ret = kbase_kcpu_jit_free_prepare(queue,
|
&command.info.jit_free, kcpu_cmd);
|
break;
|
#if IS_ENABLED(CONFIG_MALI_VECTOR_DUMP) || MALI_UNIT_TEST
|
case BASE_KCPU_COMMAND_TYPE_GROUP_SUSPEND:
|
ret = kbase_csf_queue_group_suspend_prepare(queue,
|
&command.info.suspend_buf_copy,
|
kcpu_cmd);
|
break;
|
#endif
|
default:
|
dev_dbg(queue->kctx->kbdev->dev,
|
"Unknown command type %u", command.type);
|
ret = -EINVAL;
|
break;
|
}
|
}
|
|
if (!ret) {
|
/* We only instrument the enqueues after all commands have been
|
* successfully enqueued, as if we do them during the enqueue
|
* and there is an error, we won't be able to roll them back
|
* like is done for the command enqueues themselves.
|
*/
|
for (i = 0; i != enq->nr_commands; ++i) {
|
u8 cmd_idx = (u8)(queue->start_offset + queue->num_pending_cmds + i);
|
|
KBASE_TLSTREAM_TL_KBASE_KCPUQUEUE_ENQUEUE_COMMAND(
|
queue, &queue->commands[cmd_idx]);
|
}
|
|
queue->num_pending_cmds += enq->nr_commands;
|
kcpu_queue_process(queue, false);
|
}
|
|
out:
|
mutex_unlock(&queue->lock);
|
|
return ret;
|
}
|
|
int kbase_csf_kcpu_queue_context_init(struct kbase_context *kctx)
|
{
|
int idx;
|
|
bitmap_zero(kctx->csf.kcpu_queues.in_use, KBASEP_MAX_KCPU_QUEUES);
|
|
for (idx = 0; idx < KBASEP_MAX_KCPU_QUEUES; ++idx)
|
kctx->csf.kcpu_queues.array[idx] = NULL;
|
|
mutex_init(&kctx->csf.kcpu_queues.lock);
|
|
atomic64_set(&kctx->csf.kcpu_queues.cmd_seq_num, 0);
|
|
return 0;
|
}
|
|
void kbase_csf_kcpu_queue_context_term(struct kbase_context *kctx)
|
{
|
while (!bitmap_empty(kctx->csf.kcpu_queues.in_use,
|
KBASEP_MAX_KCPU_QUEUES)) {
|
int id = find_first_bit(kctx->csf.kcpu_queues.in_use,
|
KBASEP_MAX_KCPU_QUEUES);
|
|
if (WARN_ON(!kctx->csf.kcpu_queues.array[id]))
|
clear_bit(id, kctx->csf.kcpu_queues.in_use);
|
else
|
(void)delete_queue(kctx, id);
|
}
|
|
mutex_destroy(&kctx->csf.kcpu_queues.lock);
|
}
|
KBASE_EXPORT_TEST_API(kbase_csf_kcpu_queue_context_term);
|
|
int kbase_csf_kcpu_queue_delete(struct kbase_context *kctx,
|
struct kbase_ioctl_kcpu_queue_delete *del)
|
{
|
return delete_queue(kctx, (u32)del->id);
|
}
|
|
int kbase_csf_kcpu_queue_new(struct kbase_context *kctx,
|
struct kbase_ioctl_kcpu_queue_new *newq)
|
{
|
struct kbase_kcpu_command_queue *queue;
|
int idx;
|
int n;
|
int ret = 0;
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
struct kbase_kcpu_dma_fence_meta *metadata;
|
#endif
|
/* The queue id is of u8 type and we use the index of the kcpu_queues
|
* array as an id, so the number of elements in the array can't be
|
* more than 256.
|
*/
|
BUILD_BUG_ON(KBASEP_MAX_KCPU_QUEUES > 256);
|
|
mutex_lock(&kctx->csf.kcpu_queues.lock);
|
|
idx = find_first_zero_bit(kctx->csf.kcpu_queues.in_use,
|
KBASEP_MAX_KCPU_QUEUES);
|
if (idx >= (int)KBASEP_MAX_KCPU_QUEUES) {
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
if (WARN_ON(kctx->csf.kcpu_queues.array[idx])) {
|
ret = -EINVAL;
|
goto out;
|
}
|
|
queue = kzalloc(sizeof(*queue), GFP_KERNEL);
|
|
if (!queue) {
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
queue->wq = alloc_workqueue("mali_kbase_csf_kcpu_wq_%i", WQ_UNBOUND | WQ_HIGHPRI, 0, idx);
|
if (queue->wq == NULL) {
|
kfree(queue);
|
ret = -ENOMEM;
|
|
goto out;
|
}
|
|
bitmap_set(kctx->csf.kcpu_queues.in_use, idx, 1);
|
kctx->csf.kcpu_queues.array[idx] = queue;
|
mutex_init(&queue->lock);
|
queue->kctx = kctx;
|
queue->start_offset = 0;
|
queue->num_pending_cmds = 0;
|
#if IS_ENABLED(CONFIG_SYNC_FILE)
|
queue->fence_context = dma_fence_context_alloc(1);
|
queue->fence_seqno = 0;
|
queue->fence_wait_processed = false;
|
|
metadata = kzalloc(sizeof(*metadata), GFP_KERNEL);
|
if (!metadata) {
|
destroy_workqueue(queue->wq);
|
kfree(queue);
|
ret = -ENOMEM;
|
goto out;
|
}
|
|
metadata->kbdev = kctx->kbdev;
|
metadata->kctx_id = kctx->id;
|
n = snprintf(metadata->timeline_name, MAX_TIMELINE_NAME, "%d-%d_%d-%lld-kcpu",
|
kctx->kbdev->id, kctx->tgid, kctx->id, queue->fence_context);
|
if (WARN_ON(n >= MAX_TIMELINE_NAME)) {
|
destroy_workqueue(queue->wq);
|
kfree(queue);
|
kfree(metadata);
|
ret = -EINVAL;
|
goto out;
|
}
|
|
kbase_refcount_set(&metadata->refcount, 1);
|
queue->metadata = metadata;
|
atomic_inc(&kctx->kbdev->live_fence_metadata);
|
#endif /* CONFIG_SYNC_FILE */
|
queue->enqueue_failed = false;
|
queue->command_started = false;
|
INIT_LIST_HEAD(&queue->jit_blocked);
|
queue->has_error = false;
|
INIT_WORK(&queue->work, kcpu_queue_process_worker);
|
queue->id = idx;
|
|
newq->id = idx;
|
|
/* Fire the tracepoint with the mutex held to enforce correct ordering
|
* with the summary stream.
|
*/
|
KBASE_TLSTREAM_TL_KBASE_NEW_KCPUQUEUE(kctx->kbdev, queue, queue->id, kctx->id,
|
queue->num_pending_cmds);
|
|
KBASE_KTRACE_ADD_CSF_KCPU(kctx->kbdev, KCPU_QUEUE_CREATE, queue,
|
queue->fence_context, 0);
|
#ifdef CONFIG_MALI_BIFROST_FENCE_DEBUG
|
kbase_timer_setup(&queue->fence_timeout, fence_timeout_callback);
|
#endif
|
out:
|
mutex_unlock(&kctx->csf.kcpu_queues.lock);
|
|
return ret;
|
}
|
KBASE_EXPORT_TEST_API(kbase_csf_kcpu_queue_new);
|
