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708 lines
18 KiB
708 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0 |
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// |
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// Copyright (c) 2018 MediaTek Inc. |
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#include <linux/bitops.h> |
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#include <linux/clk.h> |
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#include <linux/clk-provider.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/errno.h> |
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#include <linux/interrupt.h> |
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#include <linux/io.h> |
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#include <linux/iopoll.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/mailbox_controller.h> |
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#include <linux/mailbox/mtk-cmdq-mailbox.h> |
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#include <linux/of_device.h> |
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#define CMDQ_OP_CODE_MASK (0xff << CMDQ_OP_CODE_SHIFT) |
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#define CMDQ_NUM_CMD(t) (t->cmd_buf_size / CMDQ_INST_SIZE) |
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#define CMDQ_GCE_NUM_MAX (2) |
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#define CMDQ_CURR_IRQ_STATUS 0x10 |
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#define CMDQ_SYNC_TOKEN_UPDATE 0x68 |
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#define CMDQ_THR_SLOT_CYCLES 0x30 |
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#define CMDQ_THR_BASE 0x100 |
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#define CMDQ_THR_SIZE 0x80 |
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#define CMDQ_THR_WARM_RESET 0x00 |
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#define CMDQ_THR_ENABLE_TASK 0x04 |
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#define CMDQ_THR_SUSPEND_TASK 0x08 |
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#define CMDQ_THR_CURR_STATUS 0x0c |
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#define CMDQ_THR_IRQ_STATUS 0x10 |
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#define CMDQ_THR_IRQ_ENABLE 0x14 |
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#define CMDQ_THR_CURR_ADDR 0x20 |
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#define CMDQ_THR_END_ADDR 0x24 |
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#define CMDQ_THR_WAIT_TOKEN 0x30 |
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#define CMDQ_THR_PRIORITY 0x40 |
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#define GCE_GCTL_VALUE 0x48 |
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#define CMDQ_THR_ACTIVE_SLOT_CYCLES 0x3200 |
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#define CMDQ_THR_ENABLED 0x1 |
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#define CMDQ_THR_DISABLED 0x0 |
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#define CMDQ_THR_SUSPEND 0x1 |
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#define CMDQ_THR_RESUME 0x0 |
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#define CMDQ_THR_STATUS_SUSPENDED BIT(1) |
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#define CMDQ_THR_DO_WARM_RESET BIT(0) |
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#define CMDQ_THR_IRQ_DONE 0x1 |
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#define CMDQ_THR_IRQ_ERROR 0x12 |
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#define CMDQ_THR_IRQ_EN (CMDQ_THR_IRQ_ERROR | CMDQ_THR_IRQ_DONE) |
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#define CMDQ_THR_IS_WAITING BIT(31) |
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#define CMDQ_JUMP_BY_OFFSET 0x10000000 |
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#define CMDQ_JUMP_BY_PA 0x10000001 |
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struct cmdq_thread { |
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struct mbox_chan *chan; |
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void __iomem *base; |
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struct list_head task_busy_list; |
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u32 priority; |
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}; |
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struct cmdq_task { |
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struct cmdq *cmdq; |
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struct list_head list_entry; |
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dma_addr_t pa_base; |
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struct cmdq_thread *thread; |
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struct cmdq_pkt *pkt; /* the packet sent from mailbox client */ |
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}; |
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struct cmdq { |
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struct mbox_controller mbox; |
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void __iomem *base; |
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int irq; |
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u32 thread_nr; |
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u32 irq_mask; |
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struct cmdq_thread *thread; |
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struct clk_bulk_data clocks[CMDQ_GCE_NUM_MAX]; |
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bool suspended; |
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u8 shift_pa; |
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bool control_by_sw; |
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u32 gce_num; |
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}; |
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struct gce_plat { |
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u32 thread_nr; |
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u8 shift; |
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bool control_by_sw; |
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u32 gce_num; |
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}; |
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u8 cmdq_get_shift_pa(struct mbox_chan *chan) |
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{ |
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struct cmdq *cmdq = container_of(chan->mbox, struct cmdq, mbox); |
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return cmdq->shift_pa; |
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} |
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EXPORT_SYMBOL(cmdq_get_shift_pa); |
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static int cmdq_thread_suspend(struct cmdq *cmdq, struct cmdq_thread *thread) |
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{ |
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u32 status; |
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writel(CMDQ_THR_SUSPEND, thread->base + CMDQ_THR_SUSPEND_TASK); |
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/* If already disabled, treat as suspended successful. */ |
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if (!(readl(thread->base + CMDQ_THR_ENABLE_TASK) & CMDQ_THR_ENABLED)) |
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return 0; |
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if (readl_poll_timeout_atomic(thread->base + CMDQ_THR_CURR_STATUS, |
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status, status & CMDQ_THR_STATUS_SUSPENDED, 0, 10)) { |
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dev_err(cmdq->mbox.dev, "suspend GCE thread 0x%x failed\n", |
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(u32)(thread->base - cmdq->base)); |
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return -EFAULT; |
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} |
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return 0; |
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} |
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static void cmdq_thread_resume(struct cmdq_thread *thread) |
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{ |
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writel(CMDQ_THR_RESUME, thread->base + CMDQ_THR_SUSPEND_TASK); |
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} |
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static void cmdq_init(struct cmdq *cmdq) |
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{ |
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int i; |
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WARN_ON(clk_bulk_enable(cmdq->gce_num, cmdq->clocks)); |
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if (cmdq->control_by_sw) |
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writel(0x7, cmdq->base + GCE_GCTL_VALUE); |
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writel(CMDQ_THR_ACTIVE_SLOT_CYCLES, cmdq->base + CMDQ_THR_SLOT_CYCLES); |
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for (i = 0; i <= CMDQ_MAX_EVENT; i++) |
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writel(i, cmdq->base + CMDQ_SYNC_TOKEN_UPDATE); |
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clk_bulk_disable(cmdq->gce_num, cmdq->clocks); |
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} |
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static int cmdq_thread_reset(struct cmdq *cmdq, struct cmdq_thread *thread) |
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{ |
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u32 warm_reset; |
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writel(CMDQ_THR_DO_WARM_RESET, thread->base + CMDQ_THR_WARM_RESET); |
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if (readl_poll_timeout_atomic(thread->base + CMDQ_THR_WARM_RESET, |
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warm_reset, !(warm_reset & CMDQ_THR_DO_WARM_RESET), |
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0, 10)) { |
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dev_err(cmdq->mbox.dev, "reset GCE thread 0x%x failed\n", |
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(u32)(thread->base - cmdq->base)); |
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return -EFAULT; |
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} |
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return 0; |
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} |
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static void cmdq_thread_disable(struct cmdq *cmdq, struct cmdq_thread *thread) |
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{ |
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cmdq_thread_reset(cmdq, thread); |
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writel(CMDQ_THR_DISABLED, thread->base + CMDQ_THR_ENABLE_TASK); |
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} |
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/* notify GCE to re-fetch commands by setting GCE thread PC */ |
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static void cmdq_thread_invalidate_fetched_data(struct cmdq_thread *thread) |
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{ |
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writel(readl(thread->base + CMDQ_THR_CURR_ADDR), |
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thread->base + CMDQ_THR_CURR_ADDR); |
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} |
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static void cmdq_task_insert_into_thread(struct cmdq_task *task) |
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{ |
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struct device *dev = task->cmdq->mbox.dev; |
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struct cmdq_thread *thread = task->thread; |
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struct cmdq_task *prev_task = list_last_entry( |
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&thread->task_busy_list, typeof(*task), list_entry); |
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u64 *prev_task_base = prev_task->pkt->va_base; |
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/* let previous task jump to this task */ |
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dma_sync_single_for_cpu(dev, prev_task->pa_base, |
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prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE); |
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prev_task_base[CMDQ_NUM_CMD(prev_task->pkt) - 1] = |
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(u64)CMDQ_JUMP_BY_PA << 32 | |
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(task->pa_base >> task->cmdq->shift_pa); |
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dma_sync_single_for_device(dev, prev_task->pa_base, |
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prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE); |
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cmdq_thread_invalidate_fetched_data(thread); |
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} |
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static bool cmdq_thread_is_in_wfe(struct cmdq_thread *thread) |
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{ |
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return readl(thread->base + CMDQ_THR_WAIT_TOKEN) & CMDQ_THR_IS_WAITING; |
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} |
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static void cmdq_task_exec_done(struct cmdq_task *task, int sta) |
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{ |
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struct cmdq_task_cb *cb = &task->pkt->async_cb; |
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struct cmdq_cb_data data; |
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WARN_ON(cb->cb == (cmdq_async_flush_cb)NULL); |
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data.sta = sta; |
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data.data = cb->data; |
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data.pkt = task->pkt; |
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if (cb->cb) |
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cb->cb(data); |
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mbox_chan_received_data(task->thread->chan, &data); |
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list_del(&task->list_entry); |
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} |
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static void cmdq_task_handle_error(struct cmdq_task *task) |
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{ |
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struct cmdq_thread *thread = task->thread; |
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struct cmdq_task *next_task; |
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struct cmdq *cmdq = task->cmdq; |
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dev_err(cmdq->mbox.dev, "task 0x%p error\n", task); |
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WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); |
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next_task = list_first_entry_or_null(&thread->task_busy_list, |
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struct cmdq_task, list_entry); |
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if (next_task) |
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writel(next_task->pa_base >> cmdq->shift_pa, |
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thread->base + CMDQ_THR_CURR_ADDR); |
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cmdq_thread_resume(thread); |
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} |
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static void cmdq_thread_irq_handler(struct cmdq *cmdq, |
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struct cmdq_thread *thread) |
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{ |
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struct cmdq_task *task, *tmp, *curr_task = NULL; |
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u32 curr_pa, irq_flag, task_end_pa; |
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bool err; |
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irq_flag = readl(thread->base + CMDQ_THR_IRQ_STATUS); |
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writel(~irq_flag, thread->base + CMDQ_THR_IRQ_STATUS); |
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/* |
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* When ISR call this function, another CPU core could run |
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* "release task" right before we acquire the spin lock, and thus |
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* reset / disable this GCE thread, so we need to check the enable |
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* bit of this GCE thread. |
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*/ |
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if (!(readl(thread->base + CMDQ_THR_ENABLE_TASK) & CMDQ_THR_ENABLED)) |
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return; |
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if (irq_flag & CMDQ_THR_IRQ_ERROR) |
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err = true; |
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else if (irq_flag & CMDQ_THR_IRQ_DONE) |
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err = false; |
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else |
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return; |
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curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << cmdq->shift_pa; |
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list_for_each_entry_safe(task, tmp, &thread->task_busy_list, |
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list_entry) { |
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task_end_pa = task->pa_base + task->pkt->cmd_buf_size; |
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if (curr_pa >= task->pa_base && curr_pa < task_end_pa) |
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curr_task = task; |
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if (!curr_task || curr_pa == task_end_pa - CMDQ_INST_SIZE) { |
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cmdq_task_exec_done(task, 0); |
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kfree(task); |
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} else if (err) { |
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cmdq_task_exec_done(task, -ENOEXEC); |
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cmdq_task_handle_error(curr_task); |
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kfree(task); |
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} |
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if (curr_task) |
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break; |
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} |
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if (list_empty(&thread->task_busy_list)) { |
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cmdq_thread_disable(cmdq, thread); |
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clk_bulk_disable(cmdq->gce_num, cmdq->clocks); |
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} |
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} |
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static irqreturn_t cmdq_irq_handler(int irq, void *dev) |
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{ |
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struct cmdq *cmdq = dev; |
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unsigned long irq_status, flags = 0L; |
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int bit; |
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irq_status = readl(cmdq->base + CMDQ_CURR_IRQ_STATUS) & cmdq->irq_mask; |
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if (!(irq_status ^ cmdq->irq_mask)) |
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return IRQ_NONE; |
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for_each_clear_bit(bit, &irq_status, cmdq->thread_nr) { |
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struct cmdq_thread *thread = &cmdq->thread[bit]; |
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spin_lock_irqsave(&thread->chan->lock, flags); |
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cmdq_thread_irq_handler(cmdq, thread); |
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spin_unlock_irqrestore(&thread->chan->lock, flags); |
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} |
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return IRQ_HANDLED; |
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} |
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static int cmdq_suspend(struct device *dev) |
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{ |
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struct cmdq *cmdq = dev_get_drvdata(dev); |
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struct cmdq_thread *thread; |
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int i; |
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bool task_running = false; |
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cmdq->suspended = true; |
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for (i = 0; i < cmdq->thread_nr; i++) { |
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thread = &cmdq->thread[i]; |
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if (!list_empty(&thread->task_busy_list)) { |
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task_running = true; |
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break; |
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} |
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} |
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if (task_running) |
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dev_warn(dev, "exist running task(s) in suspend\n"); |
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clk_bulk_unprepare(cmdq->gce_num, cmdq->clocks); |
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return 0; |
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} |
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static int cmdq_resume(struct device *dev) |
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{ |
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struct cmdq *cmdq = dev_get_drvdata(dev); |
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WARN_ON(clk_bulk_prepare(cmdq->gce_num, cmdq->clocks)); |
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cmdq->suspended = false; |
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return 0; |
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} |
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static int cmdq_remove(struct platform_device *pdev) |
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{ |
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struct cmdq *cmdq = platform_get_drvdata(pdev); |
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clk_bulk_unprepare(cmdq->gce_num, cmdq->clocks); |
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return 0; |
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} |
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static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data) |
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{ |
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struct cmdq_pkt *pkt = (struct cmdq_pkt *)data; |
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struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; |
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struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev); |
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struct cmdq_task *task; |
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unsigned long curr_pa, end_pa; |
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/* Client should not flush new tasks if suspended. */ |
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WARN_ON(cmdq->suspended); |
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task = kzalloc(sizeof(*task), GFP_ATOMIC); |
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if (!task) |
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return -ENOMEM; |
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task->cmdq = cmdq; |
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INIT_LIST_HEAD(&task->list_entry); |
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task->pa_base = pkt->pa_base; |
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task->thread = thread; |
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task->pkt = pkt; |
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if (list_empty(&thread->task_busy_list)) { |
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WARN_ON(clk_bulk_enable(cmdq->gce_num, cmdq->clocks)); |
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/* |
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* The thread reset will clear thread related register to 0, |
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* including pc, end, priority, irq, suspend and enable. Thus |
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* set CMDQ_THR_ENABLED to CMDQ_THR_ENABLE_TASK will enable |
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* thread and make it running. |
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*/ |
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WARN_ON(cmdq_thread_reset(cmdq, thread) < 0); |
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writel(task->pa_base >> cmdq->shift_pa, |
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thread->base + CMDQ_THR_CURR_ADDR); |
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writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, |
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thread->base + CMDQ_THR_END_ADDR); |
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writel(thread->priority, thread->base + CMDQ_THR_PRIORITY); |
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writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE); |
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writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK); |
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} else { |
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WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); |
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curr_pa = readl(thread->base + CMDQ_THR_CURR_ADDR) << |
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cmdq->shift_pa; |
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end_pa = readl(thread->base + CMDQ_THR_END_ADDR) << |
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cmdq->shift_pa; |
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/* check boundary */ |
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if (curr_pa == end_pa - CMDQ_INST_SIZE || |
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curr_pa == end_pa) { |
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/* set to this task directly */ |
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writel(task->pa_base >> cmdq->shift_pa, |
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thread->base + CMDQ_THR_CURR_ADDR); |
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} else { |
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cmdq_task_insert_into_thread(task); |
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smp_mb(); /* modify jump before enable thread */ |
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} |
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writel((task->pa_base + pkt->cmd_buf_size) >> cmdq->shift_pa, |
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thread->base + CMDQ_THR_END_ADDR); |
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cmdq_thread_resume(thread); |
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} |
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list_move_tail(&task->list_entry, &thread->task_busy_list); |
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return 0; |
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} |
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static int cmdq_mbox_startup(struct mbox_chan *chan) |
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{ |
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return 0; |
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} |
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static void cmdq_mbox_shutdown(struct mbox_chan *chan) |
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{ |
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struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; |
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struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev); |
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struct cmdq_task *task, *tmp; |
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unsigned long flags; |
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spin_lock_irqsave(&thread->chan->lock, flags); |
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if (list_empty(&thread->task_busy_list)) |
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goto done; |
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WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); |
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/* make sure executed tasks have success callback */ |
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cmdq_thread_irq_handler(cmdq, thread); |
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if (list_empty(&thread->task_busy_list)) |
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goto done; |
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list_for_each_entry_safe(task, tmp, &thread->task_busy_list, |
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list_entry) { |
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cmdq_task_exec_done(task, -ECONNABORTED); |
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kfree(task); |
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} |
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cmdq_thread_disable(cmdq, thread); |
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clk_bulk_disable(cmdq->gce_num, cmdq->clocks); |
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done: |
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/* |
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* The thread->task_busy_list empty means thread already disable. The |
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* cmdq_mbox_send_data() always reset thread which clear disable and |
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* suspend statue when first pkt send to channel, so there is no need |
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* to do any operation here, only unlock and leave. |
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*/ |
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spin_unlock_irqrestore(&thread->chan->lock, flags); |
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} |
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static int cmdq_mbox_flush(struct mbox_chan *chan, unsigned long timeout) |
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{ |
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struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv; |
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struct cmdq_task_cb *cb; |
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struct cmdq_cb_data data; |
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struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev); |
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struct cmdq_task *task, *tmp; |
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unsigned long flags; |
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u32 enable; |
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spin_lock_irqsave(&thread->chan->lock, flags); |
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if (list_empty(&thread->task_busy_list)) |
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goto out; |
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WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0); |
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if (!cmdq_thread_is_in_wfe(thread)) |
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goto wait; |
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list_for_each_entry_safe(task, tmp, &thread->task_busy_list, |
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list_entry) { |
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cb = &task->pkt->async_cb; |
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data.sta = -ECONNABORTED; |
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data.data = cb->data; |
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data.pkt = task->pkt; |
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if (cb->cb) |
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cb->cb(data); |
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mbox_chan_received_data(task->thread->chan, &data); |
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list_del(&task->list_entry); |
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kfree(task); |
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} |
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cmdq_thread_resume(thread); |
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cmdq_thread_disable(cmdq, thread); |
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clk_bulk_disable(cmdq->gce_num, cmdq->clocks); |
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out: |
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spin_unlock_irqrestore(&thread->chan->lock, flags); |
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return 0; |
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wait: |
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cmdq_thread_resume(thread); |
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spin_unlock_irqrestore(&thread->chan->lock, flags); |
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if (readl_poll_timeout_atomic(thread->base + CMDQ_THR_ENABLE_TASK, |
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enable, enable == 0, 1, timeout)) { |
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dev_err(cmdq->mbox.dev, "Fail to wait GCE thread 0x%x done\n", |
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(u32)(thread->base - cmdq->base)); |
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return -EFAULT; |
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} |
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return 0; |
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} |
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static const struct mbox_chan_ops cmdq_mbox_chan_ops = { |
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.send_data = cmdq_mbox_send_data, |
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.startup = cmdq_mbox_startup, |
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.shutdown = cmdq_mbox_shutdown, |
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.flush = cmdq_mbox_flush, |
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}; |
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static struct mbox_chan *cmdq_xlate(struct mbox_controller *mbox, |
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const struct of_phandle_args *sp) |
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{ |
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int ind = sp->args[0]; |
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struct cmdq_thread *thread; |
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if (ind >= mbox->num_chans) |
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return ERR_PTR(-EINVAL); |
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thread = (struct cmdq_thread *)mbox->chans[ind].con_priv; |
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thread->priority = sp->args[1]; |
|
thread->chan = &mbox->chans[ind]; |
|
|
|
return &mbox->chans[ind]; |
|
} |
|
|
|
static int cmdq_probe(struct platform_device *pdev) |
|
{ |
|
struct device *dev = &pdev->dev; |
|
struct resource *res; |
|
struct cmdq *cmdq; |
|
int err, i; |
|
struct gce_plat *plat_data; |
|
struct device_node *phandle = dev->of_node; |
|
struct device_node *node; |
|
int alias_id = 0; |
|
char clk_name[4] = "gce"; |
|
|
|
cmdq = devm_kzalloc(dev, sizeof(*cmdq), GFP_KERNEL); |
|
if (!cmdq) |
|
return -ENOMEM; |
|
|
|
res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
|
cmdq->base = devm_ioremap_resource(dev, res); |
|
if (IS_ERR(cmdq->base)) |
|
return PTR_ERR(cmdq->base); |
|
|
|
cmdq->irq = platform_get_irq(pdev, 0); |
|
if (cmdq->irq < 0) |
|
return cmdq->irq; |
|
|
|
plat_data = (struct gce_plat *)of_device_get_match_data(dev); |
|
if (!plat_data) { |
|
dev_err(dev, "failed to get match data\n"); |
|
return -EINVAL; |
|
} |
|
|
|
cmdq->thread_nr = plat_data->thread_nr; |
|
cmdq->shift_pa = plat_data->shift; |
|
cmdq->control_by_sw = plat_data->control_by_sw; |
|
cmdq->gce_num = plat_data->gce_num; |
|
cmdq->irq_mask = GENMASK(cmdq->thread_nr - 1, 0); |
|
err = devm_request_irq(dev, cmdq->irq, cmdq_irq_handler, IRQF_SHARED, |
|
"mtk_cmdq", cmdq); |
|
if (err < 0) { |
|
dev_err(dev, "failed to register ISR (%d)\n", err); |
|
return err; |
|
} |
|
|
|
dev_dbg(dev, "cmdq device: addr:0x%p, va:0x%p, irq:%d\n", |
|
dev, cmdq->base, cmdq->irq); |
|
|
|
if (cmdq->gce_num > 1) { |
|
for_each_child_of_node(phandle->parent, node) { |
|
char clk_id[8]; |
|
|
|
alias_id = of_alias_get_id(node, clk_name); |
|
if (alias_id < cmdq->gce_num) { |
|
snprintf(clk_id, sizeof(clk_id), "%s%d", clk_name, alias_id); |
|
cmdq->clocks[alias_id].id = clk_id; |
|
cmdq->clocks[alias_id].clk = of_clk_get(node, 0); |
|
if (IS_ERR(cmdq->clocks[alias_id].clk)) { |
|
dev_err(dev, "failed to get gce clk: %d\n", alias_id); |
|
return PTR_ERR(cmdq->clocks[alias_id].clk); |
|
} |
|
} |
|
} |
|
} else { |
|
cmdq->clocks[alias_id].id = clk_name; |
|
cmdq->clocks[alias_id].clk = devm_clk_get(&pdev->dev, clk_name); |
|
if (IS_ERR(cmdq->clocks[alias_id].clk)) { |
|
dev_err(dev, "failed to get gce clk\n"); |
|
return PTR_ERR(cmdq->clocks[alias_id].clk); |
|
} |
|
} |
|
|
|
cmdq->mbox.dev = dev; |
|
cmdq->mbox.chans = devm_kcalloc(dev, cmdq->thread_nr, |
|
sizeof(*cmdq->mbox.chans), GFP_KERNEL); |
|
if (!cmdq->mbox.chans) |
|
return -ENOMEM; |
|
|
|
cmdq->mbox.num_chans = cmdq->thread_nr; |
|
cmdq->mbox.ops = &cmdq_mbox_chan_ops; |
|
cmdq->mbox.of_xlate = cmdq_xlate; |
|
|
|
/* make use of TXDONE_BY_ACK */ |
|
cmdq->mbox.txdone_irq = false; |
|
cmdq->mbox.txdone_poll = false; |
|
|
|
cmdq->thread = devm_kcalloc(dev, cmdq->thread_nr, |
|
sizeof(*cmdq->thread), GFP_KERNEL); |
|
if (!cmdq->thread) |
|
return -ENOMEM; |
|
|
|
for (i = 0; i < cmdq->thread_nr; i++) { |
|
cmdq->thread[i].base = cmdq->base + CMDQ_THR_BASE + |
|
CMDQ_THR_SIZE * i; |
|
INIT_LIST_HEAD(&cmdq->thread[i].task_busy_list); |
|
cmdq->mbox.chans[i].con_priv = (void *)&cmdq->thread[i]; |
|
} |
|
|
|
err = devm_mbox_controller_register(dev, &cmdq->mbox); |
|
if (err < 0) { |
|
dev_err(dev, "failed to register mailbox: %d\n", err); |
|
return err; |
|
} |
|
|
|
platform_set_drvdata(pdev, cmdq); |
|
|
|
WARN_ON(clk_bulk_prepare(cmdq->gce_num, cmdq->clocks)); |
|
|
|
cmdq_init(cmdq); |
|
|
|
return 0; |
|
} |
|
|
|
static const struct dev_pm_ops cmdq_pm_ops = { |
|
.suspend = cmdq_suspend, |
|
.resume = cmdq_resume, |
|
}; |
|
|
|
static const struct gce_plat gce_plat_v2 = { |
|
.thread_nr = 16, |
|
.shift = 0, |
|
.control_by_sw = false, |
|
.gce_num = 1 |
|
}; |
|
|
|
static const struct gce_plat gce_plat_v3 = { |
|
.thread_nr = 24, |
|
.shift = 0, |
|
.control_by_sw = false, |
|
.gce_num = 1 |
|
}; |
|
|
|
static const struct gce_plat gce_plat_v4 = { |
|
.thread_nr = 24, |
|
.shift = 3, |
|
.control_by_sw = false, |
|
.gce_num = 1 |
|
}; |
|
|
|
static const struct gce_plat gce_plat_v5 = { |
|
.thread_nr = 24, |
|
.shift = 3, |
|
.control_by_sw = true, |
|
.gce_num = 2 |
|
}; |
|
|
|
static const struct gce_plat gce_plat_v6 = { |
|
.thread_nr = 24, |
|
.shift = 3, |
|
.control_by_sw = false, |
|
.gce_num = 2 |
|
}; |
|
|
|
static const struct of_device_id cmdq_of_ids[] = { |
|
{.compatible = "mediatek,mt8173-gce", .data = (void *)&gce_plat_v2}, |
|
{.compatible = "mediatek,mt8183-gce", .data = (void *)&gce_plat_v3}, |
|
{.compatible = "mediatek,mt6779-gce", .data = (void *)&gce_plat_v4}, |
|
{.compatible = "mediatek,mt8192-gce", .data = (void *)&gce_plat_v5}, |
|
{.compatible = "mediatek,mt8195-gce", .data = (void *)&gce_plat_v6}, |
|
{} |
|
}; |
|
|
|
static struct platform_driver cmdq_drv = { |
|
.probe = cmdq_probe, |
|
.remove = cmdq_remove, |
|
.driver = { |
|
.name = "mtk_cmdq", |
|
.pm = &cmdq_pm_ops, |
|
.of_match_table = cmdq_of_ids, |
|
} |
|
}; |
|
|
|
static int __init cmdq_drv_init(void) |
|
{ |
|
return platform_driver_register(&cmdq_drv); |
|
} |
|
|
|
static void __exit cmdq_drv_exit(void) |
|
{ |
|
platform_driver_unregister(&cmdq_drv); |
|
} |
|
|
|
subsys_initcall(cmdq_drv_init); |
|
module_exit(cmdq_drv_exit); |
|
|
|
MODULE_LICENSE("GPL v2");
|
|
|