[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/mailbox/mtk-cmdq-mailbox.c b/src/kernel/linux/v4.19/drivers/mailbox/mtk-cmdq-mailbox.c
new file mode 100644
index 0000000..72b10b1
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -0,0 +1,2131 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <linux/bitops.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/mailbox_controller.h>
+#include <linux/mailbox/mtk-cmdq-mailbox.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/atomic.h>
+#include <linux/sched/clock.h>
+#if IS_ENABLED(CONFIG_MTK_CMDQ_MBOX_EXT)
+#include "cmdq-util.h"
+#endif
+
+/* ddp main/sub, mdp path 0/1/2/3, general(misc) */
+#define CMDQ_OP_CODE_MASK (0xff << CMDQ_OP_CODE_SHIFT)
+
+#define CMDQ_CURR_IRQ_STATUS 0x10
+#define CMDQ_CURR_LOADED_THR 0x18
+#define CMDQ_THR_SLOT_CYCLES 0x30
+#define CMDQ_THR_EXEC_CYCLES 0x34
+#define CMDQ_THR_TIMEOUT_TIMER 0x38
+#define GCE_GCTL_VALUE 0x48
+#define CMDQ_SYNC_TOKEN_ID 0x60
+#define CMDQ_SYNC_TOKEN_VAL 0x64
+#define CMDQ_SYNC_TOKEN_UPD 0x68
+#define CMDQ_PREFETCH_GSIZE 0xC0
+#define CMDQ_TPR_MASK 0xD0
+#define CMDQ_TPR_TIMEOUT_EN 0xDC
+
+#define CMDQ_THR_BASE 0x100
+#define CMDQ_THR_SIZE 0x80
+#define CMDQ_THR_WARM_RESET 0x00
+#define CMDQ_THR_ENABLE_TASK 0x04
+#define CMDQ_THR_SUSPEND_TASK 0x08
+#define CMDQ_THR_CURR_STATUS 0x0c
+#define CMDQ_THR_IRQ_STATUS 0x10
+#define CMDQ_THR_IRQ_ENABLE 0x14
+#define CMDQ_THR_CURR_ADDR 0x20
+#define CMDQ_THR_END_ADDR 0x24
+#define CMDQ_THR_CNT 0x28
+#define CMDQ_THR_WAIT_TOKEN 0x30
+#define CMDQ_THR_CFG 0x40
+#define CMDQ_THR_PREFETCH 0x44
+#define CMDQ_THR_INST_CYCLES 0x50
+#define CMDQ_THR_INST_THRESX 0x54
+#define CMDQ_THR_SPR 0x60
+
+#define CMDQ_THR_ENABLED 0x1
+#define CMDQ_THR_DISABLED 0x0
+#define CMDQ_THR_SUSPEND 0x1
+#define CMDQ_THR_RESUME 0x0
+#define CMDQ_THR_STATUS_SUSPENDED BIT(1)
+#define CMDQ_THR_DO_WARM_RESET BIT(0)
+#define CMDQ_THR_ACTIVE_SLOT_CYCLES 0x3200
+#define CMDQ_INST_CYCLE_TIMEOUT 0x0
+#define CMDQ_THR_IRQ_DONE 0x1
+#define CMDQ_THR_IRQ_ERROR 0x12
+#define CMDQ_THR_IRQ_EN (CMDQ_THR_IRQ_ERROR | CMDQ_THR_IRQ_DONE)
+#define CMDQ_THR_IS_WAITING BIT(31)
+#define CMDQ_THR_PRIORITY 0x7
+#define CMDQ_TPR_EN BIT(31)
+
+
+#define CMDQ_JUMP_BY_OFFSET 0x10000000
+#define CMDQ_JUMP_BY_PA 0x10000001
+
+#define CMDQ_MIN_AGE_VALUE (5) /* currently disable age */
+
+#define CMDQ_DRIVER_NAME "mtk_cmdq_mbox"
+
+/* pc and end shift bit for gce, should be config in probe */
+int gce_shift_bit;
+EXPORT_SYMBOL(gce_shift_bit);
+
+/* CMDQ log flag */
+int mtk_cmdq_log;
+EXPORT_SYMBOL(mtk_cmdq_log);
+
+int mtk_cmdq_msg;
+EXPORT_SYMBOL(mtk_cmdq_msg);
+
+int mtk_cmdq_err = 1;
+EXPORT_SYMBOL(mtk_cmdq_err);
+module_param(mtk_cmdq_log, int, 0644);
+
+int cmdq_trace;
+EXPORT_SYMBOL(cmdq_trace);
+module_param(cmdq_trace, int, 0644);
+
+struct cmdq_task {
+ struct cmdq *cmdq;
+ struct list_head list_entry;
+ dma_addr_t pa_base;
+ struct cmdq_thread *thread;
+ struct cmdq_pkt *pkt; /* the packet sent from mailbox client */
+ u64 exec_time;
+};
+
+struct cmdq_buf_dump {
+ struct cmdq *cmdq;
+ struct work_struct dump_work;
+ bool timeout; /* 0: error, 1: timeout */
+ void *cmd_buf;
+ size_t cmd_buf_size;
+ u32 pa_offset; /* pa_curr - pa_base */
+};
+
+struct cmdq {
+ struct mbox_controller mbox;
+ void __iomem *base;
+ phys_addr_t base_pa;
+ u8 hwid;
+ u32 irq;
+ u32 thread_nr;
+ u32 irq_mask;
+ struct workqueue_struct *buf_dump_wq;
+ struct cmdq_thread thread[CMDQ_THR_MAX_COUNT];
+ u32 prefetch;
+ struct clk *clock;
+ struct clk *clock_timer;
+ bool suspended;
+ atomic_t usage;
+ struct workqueue_struct *timeout_wq;
+ struct wakeup_source wake_lock;
+ bool wake_locked;
+ spinlock_t lock;
+ u32 token_cnt;
+ u16 *tokens;
+};
+
+struct gce_plat {
+ u32 thread_nr;
+ u8 shift;
+};
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+#include "../misc/mediatek/mmp/mmprofile.h"
+#include "../misc/mediatek/mmp/mmprofile_function.h"
+
+struct cmdq_mmp_event {
+ mmp_event cmdq;
+ mmp_event cmdq_irq;
+ mmp_event loop_irq;
+ mmp_event thread_en;
+ mmp_event thread_suspend;
+ mmp_event submit;
+ mmp_event wait;
+ mmp_event warning;
+};
+
+struct cmdq_mmp_event cmdq_mmp;
+
+#define MMP_THD(t, c) ((t)->idx | ((c)->hwid << 5))
+#endif
+
+static void cmdq_init(struct cmdq *cmdq)
+{
+ int i;
+
+ cmdq_trace_ex_begin("%s", __func__);
+
+ writel(CMDQ_THR_ACTIVE_SLOT_CYCLES, cmdq->base + CMDQ_THR_SLOT_CYCLES);
+ for (i = 0; i <= CMDQ_EVENT_MAX; i++)
+ writel(i, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+
+ /* some of events need default 1 */
+ for (i = 0; i < cmdq->token_cnt; i++)
+ writel(cmdq->tokens[i] | BIT(16),
+ cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+
+ cmdq_trace_ex_end();
+}
+
+static inline void cmdq_mmp_init(void)
+{
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_enable(1);
+ if (cmdq_mmp.cmdq) {
+ mmprofile_start(1);
+ return;
+ }
+
+ cmdq_mmp.cmdq = mmprofile_register_event(MMP_ROOT_EVENT, "CMDQ");
+ cmdq_mmp.cmdq_irq = mmprofile_register_event(cmdq_mmp.cmdq, "cmdq_irq");
+ cmdq_mmp.loop_irq = mmprofile_register_event(cmdq_mmp.cmdq, "loop_irq");
+ cmdq_mmp.thread_en =
+ mmprofile_register_event(cmdq_mmp.cmdq, "thread_en");
+ cmdq_mmp.thread_suspend =
+ mmprofile_register_event(cmdq_mmp.cmdq, "thread_suspend");
+ cmdq_mmp.submit = mmprofile_register_event(cmdq_mmp.cmdq, "submit");
+ cmdq_mmp.wait = mmprofile_register_event(cmdq_mmp.cmdq, "wait");
+ cmdq_mmp.warning = mmprofile_register_event(cmdq_mmp.cmdq, "warning");
+ mmprofile_start(1);
+#endif
+}
+
+static void cmdq_lock_wake_lock(struct cmdq *cmdq, bool lock)
+{
+ cmdq_trace_ex_begin("%s", __func__);
+
+ if (lock) {
+ if (!cmdq->wake_locked) {
+ __pm_stay_awake(&cmdq->wake_lock);
+ cmdq->wake_locked = true;
+ } else {
+ /* should not reach here */
+ cmdq_err("try lock twice cmdq:%lx",
+ (unsigned long)cmdq);
+ dump_stack();
+ }
+ } else {
+ if (cmdq->wake_locked) {
+ __pm_relax(&cmdq->wake_lock);
+ cmdq->wake_locked = false;
+ } else {
+ /* should not reach here */
+ cmdq_err("try unlock twice cmdq:%lx",
+ (unsigned long)cmdq);
+ dump_stack();
+ }
+
+ }
+
+ cmdq_trace_ex_end();
+}
+
+static s32 cmdq_clk_enable(struct cmdq *cmdq)
+{
+ s32 usage, err, err_timer;
+ unsigned long flags;
+
+ cmdq_trace_ex_begin("%s", __func__);
+
+ spin_lock_irqsave(&cmdq->lock, flags);
+
+ usage = atomic_inc_return(&cmdq->usage);
+
+ err = clk_enable(cmdq->clock);
+ if (usage <= 0 || err < 0)
+ cmdq_err("ref count error after inc:%d err:%d suspend:%s",
+ usage, err, cmdq->suspended ? "true" : "false");
+ else if (usage == 1) {
+ cmdq_log("cmdq begin mbox");
+ if (cmdq->prefetch)
+ writel(cmdq->prefetch,
+ cmdq->base + CMDQ_PREFETCH_GSIZE);
+ writel(CMDQ_TPR_EN, cmdq->base + CMDQ_TPR_MASK);
+ /* make sure pm not suspend */
+ cmdq_lock_wake_lock(cmdq, true);
+ cmdq_init(cmdq);
+ }
+
+ err_timer = clk_enable(cmdq->clock_timer);
+ if (err_timer < 0)
+ cmdq_err("timer clk fail:%d", err_timer);
+
+ spin_unlock_irqrestore(&cmdq->lock, flags);
+
+ cmdq_trace_ex_end();
+
+ return err;
+}
+
+static void cmdq_clk_disable(struct cmdq *cmdq)
+{
+ s32 usage;
+ unsigned long flags;
+
+ cmdq_trace_ex_begin("%s", __func__);
+
+ spin_lock_irqsave(&cmdq->lock, flags);
+
+ usage = atomic_dec_return(&cmdq->usage);
+
+ if (usage < 0) {
+ /* print error but still try close */
+ cmdq_err("ref count error after dec:%d suspend:%s",
+ usage, cmdq->suspended ? "true" : "false");
+ } else if (usage == 0) {
+ cmdq_log("cmdq shutdown mbox");
+ /* clear tpr mask */
+ writel(0, cmdq->base + CMDQ_TPR_MASK);
+ writel(0x7, cmdq->base + GCE_GCTL_VALUE);
+
+ /* now allow pm suspend */
+ cmdq_lock_wake_lock(cmdq, false);
+ }
+
+ clk_disable(cmdq->clock_timer);
+ clk_disable(cmdq->clock);
+
+ spin_unlock_irqrestore(&cmdq->lock, flags);
+
+ cmdq_trace_ex_end();
+}
+
+dma_addr_t cmdq_thread_get_pc(struct cmdq_thread *thread)
+{
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+
+ if (atomic_read(&cmdq->usage) <= 0)
+ return 0;
+
+ return CMDQ_REG_REVERT_ADDR(readl(thread->base + CMDQ_THR_CURR_ADDR));
+}
+
+dma_addr_t cmdq_thread_get_end(struct cmdq_thread *thread)
+{
+ dma_addr_t end = readl(thread->base + CMDQ_THR_END_ADDR);
+
+ return CMDQ_REG_REVERT_ADDR(end);
+}
+
+static void cmdq_thread_set_pc(struct cmdq_thread *thread, dma_addr_t pc)
+{
+ writel(CMDQ_REG_SHIFT_ADDR(pc), thread->base + CMDQ_THR_CURR_ADDR);
+}
+
+static void cmdq_thread_set_end(struct cmdq_thread *thread, dma_addr_t end)
+{
+ writel(CMDQ_REG_SHIFT_ADDR(end), thread->base + CMDQ_THR_END_ADDR);
+}
+
+void cmdq_thread_set_spr(struct mbox_chan *chan, u8 id, u32 val)
+{
+ struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv;
+
+ writel(val, thread->base + CMDQ_THR_SPR + id * 4);
+}
+
+static int cmdq_thread_suspend(struct cmdq *cmdq, struct cmdq_thread *thread)
+{
+ u32 status;
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.thread_suspend, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), CMDQ_THR_SUSPEND);
+#endif
+ writel(CMDQ_THR_SUSPEND, thread->base + CMDQ_THR_SUSPEND_TASK);
+
+ /* If already disabled, treat as suspended successful. */
+ if (!(readl(thread->base + CMDQ_THR_ENABLE_TASK) & CMDQ_THR_ENABLED))
+ return 0;
+
+ if (readl_poll_timeout_atomic(thread->base + CMDQ_THR_CURR_STATUS,
+ status, status & CMDQ_THR_STATUS_SUSPENDED, 0, 100)) {
+ cmdq_err("suspend GCE thread 0x%x failed",
+ (u32)(thread->base - cmdq->base));
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+static void cmdq_thread_resume(struct cmdq_thread *thread)
+{
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ struct cmdq *cmdq = container_of(
+ thread->chan->mbox, typeof(*cmdq), mbox);
+#endif
+
+ writel(CMDQ_THR_RESUME, thread->base + CMDQ_THR_SUSPEND_TASK);
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.thread_suspend, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), CMDQ_THR_RESUME);
+#endif
+}
+
+static int cmdq_thread_reset(struct cmdq *cmdq, struct cmdq_thread *thread)
+{
+ u32 warm_reset;
+
+ writel(CMDQ_THR_DO_WARM_RESET, thread->base + CMDQ_THR_WARM_RESET);
+ if (readl_poll_timeout_atomic(thread->base + CMDQ_THR_WARM_RESET,
+ warm_reset, !(warm_reset & CMDQ_THR_DO_WARM_RESET),
+ 0, 10)) {
+ cmdq_err("reset GCE thread %u failed", thread->idx);
+ return -EFAULT;
+ }
+ writel(CMDQ_THR_ACTIVE_SLOT_CYCLES, cmdq->base + CMDQ_THR_SLOT_CYCLES);
+ return 0;
+}
+
+static void cmdq_thread_err_reset(struct cmdq *cmdq, struct cmdq_thread *thread,
+ dma_addr_t pc, u32 thd_pri)
+{
+ u32 i, spr[4], cookie;
+ dma_addr_t end;
+
+ for (i = 0; i < 4; i++)
+ spr[i] = readl(thread->base + CMDQ_THR_SPR + i * 4);
+ end = cmdq_thread_get_end(thread);
+ cookie = readl(thread->base + CMDQ_THR_CNT);
+
+ cmdq_msg(
+ "reset backup pc:%pa end:%pa cookie:0x%08x spr:0x%x 0x%x 0x%x 0x%x",
+ &pc, &end, cookie, spr[0], spr[1], spr[2], spr[3]);
+ WARN_ON(cmdq_thread_reset(cmdq, thread) < 0);
+
+ for (i = 0; i < 4; i++)
+ writel(spr[i], thread->base + CMDQ_THR_SPR + i * 4);
+ writel(CMDQ_INST_CYCLE_TIMEOUT, thread->base + CMDQ_THR_INST_CYCLES);
+ cmdq_thread_set_end(thread, end);
+ cmdq_thread_set_pc(thread, pc);
+ writel(cookie, thread->base + CMDQ_THR_CNT);
+ writel(thd_pri, thread->base + CMDQ_THR_CFG);
+ writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE);
+ writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK);
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.thread_en, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), CMDQ_THR_ENABLED);
+#endif
+}
+
+static void cmdq_thread_disable(struct cmdq *cmdq, struct cmdq_thread *thread)
+{
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.thread_en, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), CMDQ_THR_DISABLED);
+#endif
+ cmdq_thread_reset(cmdq, thread);
+ writel(CMDQ_THR_DISABLED, thread->base + CMDQ_THR_ENABLE_TASK);
+}
+
+/* notify GCE to re-fetch commands by setting GCE thread PC */
+static void cmdq_thread_invalidate_fetched_data(struct cmdq_thread *thread)
+{
+ cmdq_thread_set_pc(thread, cmdq_thread_get_pc(thread));
+}
+
+static void cmdq_task_connect_buffer(struct cmdq_task *task,
+ struct cmdq_task *next_task)
+{
+ u64 *task_base;
+ struct cmdq_pkt_buffer *buf;
+ u64 inst;
+
+ /* let previous task jump to this task */
+ buf = list_last_entry(&task->pkt->buf, typeof(*buf), list_entry);
+ task_base = (u64 *)(buf->va_base + CMDQ_CMD_BUFFER_SIZE -
+ task->pkt->avail_buf_size - CMDQ_INST_SIZE);
+ inst = *task_base;
+ *task_base = (u64)CMDQ_JUMP_BY_PA << 32 |
+ CMDQ_REG_SHIFT_ADDR(next_task->pa_base);
+ cmdq_log("change last inst 0x%016llx to 0x%016llx connect 0x%p -> 0x%p",
+ inst, *task_base, task->pkt, next_task->pkt);
+}
+
+static void *cmdq_task_current_va(unsigned long pa, struct cmdq_pkt *pkt)
+{
+ struct cmdq_pkt_buffer *buf;
+ u32 end;
+
+ list_for_each_entry(buf, &pkt->buf, list_entry) {
+ if (list_is_last(&buf->list_entry, &pkt->buf))
+ end = buf->pa_base + CMDQ_CMD_BUFFER_SIZE -
+ pkt->avail_buf_size;
+ else
+ end = buf->pa_base + CMDQ_CMD_BUFFER_SIZE;
+ if (pa >= buf->pa_base && pa < end)
+ return buf->va_base + (pa - buf->pa_base);
+ }
+
+ return NULL;
+}
+
+static bool cmdq_task_is_current_run(unsigned long pa, struct cmdq_pkt *pkt)
+{
+ if (cmdq_task_current_va(pa, pkt))
+ return true;
+ return false;
+}
+
+
+static void cmdq_task_insert_into_thread(dma_addr_t curr_pa,
+ struct cmdq_task *task, struct list_head **insert_pos)
+{
+ struct cmdq_thread *thread = task->thread;
+ struct cmdq_task *prev_task = NULL, *next_task = NULL, *cursor_task;
+
+ list_for_each_entry_reverse(cursor_task, &thread->task_busy_list,
+ list_entry) {
+ prev_task = cursor_task;
+ if (next_task)
+ next_task->pkt->priority += CMDQ_MIN_AGE_VALUE;
+ /* stop if we found current running task */
+ if (cmdq_task_is_current_run(curr_pa, prev_task->pkt))
+ break;
+ /* stop if new task priority lower than this one */
+ if (prev_task->pkt->priority >= task->pkt->priority)
+ break;
+ next_task = prev_task;
+ }
+
+ *insert_pos = &prev_task->list_entry;
+ cmdq_task_connect_buffer(prev_task, task);
+ if (next_task && next_task != prev_task) {
+ cmdq_msg("reorder pkt:0x%p(%u) next pkt:0x%p(%u) pc:%pa",
+ task->pkt, task->pkt->priority,
+ next_task->pkt, next_task->pkt->priority, &curr_pa);
+ cmdq_task_connect_buffer(task, next_task);
+ }
+
+ cmdq_thread_invalidate_fetched_data(thread);
+}
+
+static void cmdq_task_callback(struct cmdq_pkt *pkt, s32 err)
+{
+ struct cmdq_cb_data cmdq_cb_data;
+
+ if (pkt->cb.cb) {
+ cmdq_cb_data.err = err;
+ cmdq_cb_data.data = pkt->cb.data;
+ pkt->cb.cb(cmdq_cb_data);
+ }
+}
+
+static void cmdq_task_err_callback(struct cmdq_pkt *pkt, s32 err)
+{
+ struct cmdq_cb_data cmdq_cb_data;
+
+ if (pkt->err_cb.cb) {
+ cmdq_cb_data.err = err;
+ cmdq_cb_data.data = pkt->err_cb.data;
+ pkt->err_cb.cb(cmdq_cb_data);
+ }
+}
+
+static dma_addr_t cmdq_task_get_end_pa(struct cmdq_pkt *pkt)
+{
+ struct cmdq_pkt_buffer *buf;
+
+ /* let previous task jump to this task */
+ buf = list_last_entry(&pkt->buf, typeof(*buf), list_entry);
+ return buf->pa_base + CMDQ_CMD_BUFFER_SIZE - pkt->avail_buf_size;
+}
+
+static void *cmdq_task_get_end_va(struct cmdq_pkt *pkt)
+{
+ struct cmdq_pkt_buffer *buf;
+
+ /* let previous task jump to this task */
+ buf = list_last_entry(&pkt->buf, typeof(*buf), list_entry);
+ return buf->va_base + CMDQ_CMD_BUFFER_SIZE - pkt->avail_buf_size;
+}
+
+static void cmdq_task_exec(struct cmdq_pkt *pkt, struct cmdq_thread *thread)
+{
+ struct cmdq *cmdq;
+ struct cmdq_task *task, *last_task;
+ dma_addr_t curr_pa, end_pa, dma_handle;
+ struct list_head *insert_pos;
+ struct cmdq_pkt_buffer *buf;
+
+ cmdq = dev_get_drvdata(thread->chan->mbox->dev);
+
+ /* Client should not flush new tasks if suspended. */
+ WARN_ON(cmdq->suspended);
+
+ buf = list_first_entry_or_null(&pkt->buf, typeof(*buf),
+ list_entry);
+ if (!buf) {
+ cmdq_err("no command to execute");
+ return;
+ }
+ dma_handle = buf->pa_base;
+
+ task = kzalloc(sizeof(*task), GFP_ATOMIC);
+ if (!task)
+ return;
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.submit, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), (unsigned long)pkt);
+#endif
+
+ task->cmdq = cmdq;
+ INIT_LIST_HEAD(&task->list_entry);
+ task->pa_base = dma_handle;
+ task->thread = thread;
+ task->pkt = pkt;
+ task->exec_time = sched_clock();
+
+ if (list_empty(&thread->task_busy_list)) {
+ WARN_ON(cmdq_clk_enable(cmdq) < 0);
+ WARN_ON(cmdq_thread_reset(cmdq, thread) < 0);
+
+ cmdq_log("task %pa size:%zu thread->base=0x%p thread:%u",
+ &task->pa_base, pkt->cmd_buf_size, thread->base,
+ thread->idx);
+
+ writel(CMDQ_INST_CYCLE_TIMEOUT,
+ thread->base + CMDQ_THR_INST_CYCLES);
+ writel(thread->priority & CMDQ_THR_PRIORITY,
+ thread->base + CMDQ_THR_CFG);
+ cmdq_thread_set_end(thread, cmdq_task_get_end_pa(pkt));
+ cmdq_thread_set_pc(thread, task->pa_base);
+ writel(CMDQ_THR_IRQ_EN, thread->base + CMDQ_THR_IRQ_ENABLE);
+ writel(CMDQ_THR_ENABLED, thread->base + CMDQ_THR_ENABLE_TASK);
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.thread_en, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), CMDQ_THR_ENABLED);
+#endif
+
+ cmdq_log("set pc:0x%08x end:0x%08x pkt:0x%p",
+ (u32)task->pa_base,
+ (u32)cmdq_task_get_end_pa(pkt),
+ pkt);
+
+ if (thread->timeout_ms != CMDQ_NO_TIMEOUT) {
+ mod_timer(&thread->timeout, jiffies +
+ msecs_to_jiffies(thread->timeout_ms));
+ thread->timer_mod = sched_clock();
+ }
+ list_move_tail(&task->list_entry, &thread->task_busy_list);
+ } else {
+ /* no warn on here to prevent slow down cpu */
+ cmdq_thread_suspend(cmdq, thread);
+ curr_pa = cmdq_thread_get_pc(thread);
+ end_pa = cmdq_thread_get_end(thread);
+
+ cmdq_log("curr task %pa~%pa thread->base:0x%p thread:%u",
+ &curr_pa, &end_pa, thread->base, thread->idx);
+
+ /* check boundary */
+ if (curr_pa == end_pa - CMDQ_INST_SIZE || curr_pa == end_pa) {
+ /* set to this task directly */
+ cmdq_thread_set_pc(thread, task->pa_base);
+ last_task = list_last_entry(&thread->task_busy_list,
+ typeof(*task), list_entry);
+ insert_pos = &last_task->list_entry;
+ cmdq_log("set pc:%pa pkt:0x%p",
+ &task->pa_base, task->pkt);
+ } else {
+ cmdq_task_insert_into_thread(curr_pa, task,
+ &insert_pos);
+ smp_mb(); /* modify jump before enable thread */
+ }
+ list_add(&task->list_entry, insert_pos);
+ last_task = list_last_entry(&thread->task_busy_list,
+ typeof(*task), list_entry);
+ cmdq_thread_set_end(thread,
+ cmdq_task_get_end_pa(last_task->pkt));
+ cmdq_log("set end:0x%08x pkt:0x%p",
+ (u32)cmdq_task_get_end_pa(last_task->pkt),
+ last_task->pkt);
+
+ if (thread->dirty) {
+ cmdq_err("new task during error on thread:%u",
+ thread->idx);
+ } else {
+ /* safe to go */
+ cmdq_thread_resume(thread);
+ }
+ }
+
+#if IS_ENABLED(CONFIG_MTK_CMDQ_MBOX_EXT)
+ pkt->rec_trigger = sched_clock();
+#endif
+}
+
+static void cmdq_task_exec_done(struct cmdq_task *task, s32 err)
+{
+#if IS_ENABLED(CONFIG_MTK_CMDQ_MBOX_EXT)
+ task->pkt->rec_irq = sched_clock();
+#endif
+ cmdq_task_callback(task->pkt, err);
+ cmdq_log("pkt:0x%p done err:%d", task->pkt, err);
+ list_del_init(&task->list_entry);
+}
+
+static void cmdq_buf_dump_schedule(struct cmdq_task *task, bool timeout,
+ u32 pa_curr)
+{
+ struct cmdq_pkt_buffer *buf;
+ u64 *inst = NULL;
+
+ list_for_each_entry(buf, &task->pkt->buf, list_entry) {
+ if (!(pa_curr >= buf->pa_base &&
+ pa_curr < buf->pa_base + CMDQ_CMD_BUFFER_SIZE)) {
+ continue;
+ }
+ inst = (u64 *)(buf->va_base + (pa_curr - buf->pa_base));
+ break;
+ }
+
+ cmdq_err("task:0x%p timeout:%s pkt:0x%p size:%zu pc:0x%08x inst:0x%016llx",
+ task, timeout ? "true" : "false", task->pkt,
+ task->pkt->cmd_buf_size, pa_curr,
+ inst ? *inst : -1);
+}
+
+static void cmdq_task_handle_error(struct cmdq_task *task)
+{
+ struct cmdq_thread *thread = task->thread;
+ struct cmdq_task *next_task;
+
+ cmdq_err("task 0x%p pkt 0x%p error", task, task->pkt);
+ WARN_ON(cmdq_thread_suspend(task->cmdq, thread) < 0);
+ next_task = list_first_entry_or_null(&thread->task_busy_list,
+ struct cmdq_task, list_entry);
+ if (next_task)
+ cmdq_thread_set_pc(thread, next_task->pa_base);
+ cmdq_thread_resume(thread);
+}
+
+static void cmdq_thread_irq_handler(struct cmdq *cmdq,
+ struct cmdq_thread *thread, struct list_head *removes)
+{
+ struct cmdq_task *task, *tmp, *curr_task = NULL;
+ u32 irq_flag;
+ dma_addr_t curr_pa, task_end_pa;
+ s32 err = 0;
+
+ if (atomic_read(&cmdq->usage) <= 0) {
+ cmdq_log("irq handling during gce off gce:%lx thread:%u",
+ (unsigned long)cmdq->base_pa, thread->idx);
+ return;
+ }
+
+ irq_flag = readl(thread->base + CMDQ_THR_IRQ_STATUS);
+ writel(~irq_flag, thread->base + CMDQ_THR_IRQ_STATUS);
+
+ cmdq_log("irq flag:%#x gce:%lx idx:%u",
+ irq_flag, (unsigned long)cmdq->base_pa, thread->idx);
+
+ /*
+ * When ISR call this function, another CPU core could run
+ * "release task" right before we acquire the spin lock, and thus
+ * reset / disable this GCE thread, so we need to check the enable
+ * bit of this GCE thread.
+ */
+ if (!(readl(thread->base + CMDQ_THR_ENABLE_TASK) & CMDQ_THR_ENABLED))
+ return;
+
+ if (irq_flag & CMDQ_THR_IRQ_ERROR)
+ err = -EINVAL;
+ else if (irq_flag & CMDQ_THR_IRQ_DONE)
+ err = 0;
+ else
+ return;
+
+ if (list_empty(&thread->task_busy_list))
+ cmdq_err("empty! may we hang later?");
+
+ curr_pa = cmdq_thread_get_pc(thread);
+ task_end_pa = cmdq_thread_get_end(thread);
+
+ if (err < 0)
+ cmdq_err("pc:%pa end:%pa err:%d gce base:%lx",
+ &curr_pa, &task_end_pa, err,
+ (unsigned long)cmdq->base_pa);
+
+ cmdq_log("task status %pa~%pa err:%d",
+ &curr_pa, &task_end_pa, err);
+
+ task = list_first_entry_or_null(&thread->task_busy_list,
+ struct cmdq_task, list_entry);
+ if (task && task->pkt->loop) {
+ cmdq_log("task loop %p", &task->pkt);
+ cmdq_task_callback(task->pkt, err);
+
+#if IS_ENABLED(CONFIG_MTK_CMDQ_MBOX_EXT)
+ task->pkt->rec_irq = sched_clock();
+#endif
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.loop_irq, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), (unsigned long)task->pkt);
+#endif
+
+ return;
+ }
+
+ if (thread->dirty) {
+ cmdq_log("task in error dump thread:%u pkt:0x%p",
+ thread->idx, task ? task->pkt : NULL);
+ return;
+ }
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.cmdq_irq, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), task ? (unsigned long)task->pkt : 0);
+#endif
+
+ list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
+ list_entry) {
+ task_end_pa = cmdq_task_get_end_pa(task->pkt);
+ if (cmdq_task_is_current_run(curr_pa, task->pkt))
+ curr_task = task;
+
+ if (!curr_task || curr_pa == task_end_pa - CMDQ_INST_SIZE) {
+ if (curr_task && (curr_pa != task_end_pa)) {
+ cmdq_log(
+ "remove task that not ending pkt:0x%p %pa to %pa",
+ curr_task->pkt, &curr_pa, &task_end_pa);
+ }
+ cmdq_task_exec_done(task, 0);
+ list_add_tail(&task->list_entry, removes);
+ } else if (err) {
+ cmdq_err("pkt:0x%p thread:%u err:%d",
+ curr_task->pkt, thread->idx, err);
+ cmdq_buf_dump_schedule(task, false, curr_pa);
+ cmdq_task_exec_done(task, err);
+ cmdq_task_handle_error(curr_task);
+ list_add_tail(&task->list_entry, removes);
+ }
+
+ if (curr_task)
+ break;
+ }
+
+ task = list_first_entry_or_null(&thread->task_busy_list,
+ struct cmdq_task, list_entry);
+ if (!task) {
+ cmdq_thread_disable(cmdq, thread);
+ cmdq_clk_disable(cmdq);
+
+ cmdq_log("empty task thread:%u", thread->idx);
+ } else {
+ mod_timer(&thread->timeout, jiffies +
+ msecs_to_jiffies(thread->timeout_ms));
+ thread->timer_mod = sched_clock();
+ cmdq_log("mod_timer pkt:0x%p timeout:%u thread:%u",
+ task->pkt, thread->timeout_ms, thread->idx);
+ }
+}
+
+static irqreturn_t cmdq_irq_handler(int irq, void *dev)
+{
+ struct cmdq *cmdq = dev;
+ unsigned long irq_status, flags = 0L;
+ int bit;
+ bool secure_irq = false;
+ struct cmdq_task *task, *tmp;
+ struct list_head removes;
+
+ if (atomic_read(&cmdq->usage) <= 0) {
+ cmdq_msg("%s cmdq:%#lx suspend:%s",
+ __func__, (unsigned long)cmdq->base_pa,
+ cmdq->suspended ? "true" : "false");
+ return IRQ_HANDLED;
+ }
+
+ irq_status = readl(cmdq->base + CMDQ_CURR_IRQ_STATUS) & cmdq->irq_mask;
+ cmdq_log("gce:%lx irq: %#x, %#x",
+ (unsigned long)cmdq->base_pa, (u32)irq_status,
+ (u32)(irq_status ^ cmdq->irq_mask));
+ if (!(irq_status ^ cmdq->irq_mask)) {
+ cmdq_msg("not handle for empty status:0x%x",
+ (u32)irq_status);
+ return IRQ_NONE;
+ }
+
+ INIT_LIST_HEAD(&removes);
+ for_each_clear_bit(bit, &irq_status, fls(cmdq->irq_mask)) {
+ struct cmdq_thread *thread = &cmdq->thread[bit];
+
+ cmdq_log("bit=%d, thread->base=%p", bit, thread->base);
+ if (!thread->occupied) {
+ secure_irq = true;
+ continue;
+ }
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ cmdq_thread_irq_handler(cmdq, thread, &removes);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ }
+
+ list_for_each_entry_safe(task, tmp, &removes, list_entry) {
+ list_del(&task->list_entry);
+ kfree(task);
+ }
+
+ return secure_irq ? IRQ_NONE : IRQ_HANDLED;
+}
+
+static bool cmdq_thread_timeout_excceed(struct cmdq_thread *thread)
+{
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ u64 duration;
+
+ /* If first time exec time stamp smaller than timeout value,
+ * it is last round timeout. Skip it.
+ */
+ duration = div_s64(sched_clock() - thread->timer_mod, 1000000);
+ if (duration < thread->timeout_ms) {
+ mod_timer(&thread->timeout, jiffies +
+ msecs_to_jiffies(thread->timeout_ms - duration));
+ thread->timer_mod = sched_clock();
+ cmdq_msg(
+ "thread:%u usage:%d mod time:%llu dur:%llu timeout not excceed",
+ thread->idx, atomic_read(&cmdq->usage),
+ thread->timer_mod, duration);
+ return false;
+ }
+
+ return true;
+}
+
+static void cmdq_thread_handle_timeout_work(struct work_struct *work_item)
+{
+ struct cmdq_thread *thread = container_of(work_item,
+ struct cmdq_thread, timeout_work);
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ struct cmdq_task *task, *tmp, *timeout_task = NULL;
+ unsigned long flags;
+ bool first_task = true;
+ u32 pa_curr;
+ struct list_head removes;
+
+ INIT_LIST_HEAD(&removes);
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ if (list_empty(&thread->task_busy_list)) {
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ /* Check before suspend thread to prevent hurt performance. */
+ if (!cmdq_thread_timeout_excceed(thread)) {
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0);
+
+ /*
+ * Although IRQ is disabled, GCE continues to execute.
+ * It may have pending IRQ before GCE thread is suspended,
+ * so check this condition again.
+ */
+ cmdq_thread_irq_handler(cmdq, thread, &removes);
+
+ if (list_empty(&thread->task_busy_list)) {
+ cmdq_err("thread:%u empty after irq handle in timeout",
+ thread->idx);
+ goto unlock_free_done;
+ }
+
+ /* After IRQ, first task may change. */
+ if (!cmdq_thread_timeout_excceed(thread)) {
+ cmdq_thread_resume(thread);
+ goto unlock_free_done;
+ }
+
+ cmdq_err("timeout for thread:0x%p idx:%u usage:%d",
+ thread->base, thread->idx, atomic_read(&cmdq->usage));
+
+ pa_curr = cmdq_thread_get_pc(thread);
+
+ list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
+ list_entry) {
+ bool curr_task = cmdq_task_is_current_run(pa_curr, task->pkt);
+
+ if (first_task) {
+ cmdq_buf_dump_schedule(task, true, pa_curr);
+ first_task = false;
+ }
+
+ if (curr_task) {
+ timeout_task = task;
+ break;
+ }
+
+ cmdq_msg("ending not curr in timeout pkt:0x%p curr_pa:0x%08x",
+ task->pkt, pa_curr);
+ cmdq_task_exec_done(task, 0);
+ kfree(task);
+ }
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+ mmprofile_log_ex(cmdq_mmp.warning, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq),
+ timeout_task ? (unsigned long)timeout_task : 0);
+#endif
+
+ if (timeout_task) {
+ thread->dirty = true;
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ cmdq_task_err_callback(timeout_task->pkt, -ETIMEDOUT);
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ thread->dirty = false;
+
+ task = list_first_entry_or_null(&thread->task_busy_list,
+ struct cmdq_task, list_entry);
+ if (timeout_task == task) {
+ cmdq_task_exec_done(task, -ETIMEDOUT);
+ kfree(task);
+ } else {
+ cmdq_err("task list changed");
+ }
+ }
+
+ task = list_first_entry_or_null(&thread->task_busy_list,
+ struct cmdq_task, list_entry);
+ if (task) {
+ mod_timer(&thread->timeout, jiffies +
+ msecs_to_jiffies(thread->timeout_ms));
+ thread->timer_mod = sched_clock();
+ cmdq_thread_err_reset(cmdq, thread,
+ task->pa_base, thread->priority);
+ cmdq_thread_resume(thread);
+ } else {
+ cmdq_thread_resume(thread);
+ cmdq_thread_disable(cmdq, thread);
+ cmdq_clk_disable(cmdq);
+ }
+
+unlock_free_done:
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ list_for_each_entry_safe(task, tmp, &removes, list_entry) {
+ list_del(&task->list_entry);
+ kfree(task);
+ }
+}
+static void cmdq_thread_handle_timeout(struct timer_list *t)
+{
+ struct cmdq_thread *thread = from_timer(thread, t, timeout);
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ unsigned long flags;
+ bool empty;
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ empty = list_empty(&thread->task_busy_list);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ if (empty)
+ return;
+
+ if (!work_pending(&thread->timeout_work)) {
+ cmdq_log("queue cmdq timeout thread:%u", thread->idx);
+ queue_work(cmdq->timeout_wq, &thread->timeout_work);
+ } else {
+ cmdq_msg("ignore cmdq timeout thread:%u", thread->idx);
+ }
+}
+
+void cmdq_dump_core(struct mbox_chan *chan)
+{
+ struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev);
+ u32 irq, loaded, cycle, thd_timer, tpr_mask, tpr_en;
+
+ irq = readl(cmdq->base + CMDQ_CURR_IRQ_STATUS);
+ loaded = readl(cmdq->base + CMDQ_CURR_LOADED_THR);
+ cycle = readl(cmdq->base + CMDQ_THR_EXEC_CYCLES);
+ thd_timer = readl(cmdq->base + CMDQ_THR_TIMEOUT_TIMER);
+ tpr_mask = readl(cmdq->base + CMDQ_TPR_MASK);
+ tpr_en = readl(cmdq->base + CMDQ_TPR_TIMEOUT_EN);
+
+ cmdq_util_msg(
+ "irq:%#x loaded:%#x cycle:%#x thd timer:%#x mask:%#x en:%#x",
+ irq, loaded, cycle, thd_timer, tpr_mask, tpr_en);
+#if IS_ENABLED(CONFIG_MTK_CMDQ_MBOX_EXT)
+ cmdq_util_dump_dbg_reg(chan);
+#endif
+}
+EXPORT_SYMBOL(cmdq_dump_core);
+
+void cmdq_thread_dump(struct mbox_chan *chan, struct cmdq_pkt *cl_pkt,
+ u64 **inst_out, dma_addr_t *pc_out)
+{
+ struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv;
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ unsigned long flags;
+ struct cmdq_task *task;
+ struct cmdq_pkt_buffer *buf;
+
+ struct cmdq_pkt *pkt = NULL;
+ u32 warn_rst, en, suspend, status, irq, irq_en, curr_pa, end_pa, cnt,
+ wait_token, cfg, prefetch, pri = 0, spr[4];
+ size_t size = 0;
+ u64 *end_va, *curr_va = NULL, inst = 0, last_inst[2] = {0};
+ void *va_base = NULL;
+ dma_addr_t pa_base;
+ bool empty = true;
+
+ /* lock channel and get info */
+ spin_lock_irqsave(&chan->lock, flags);
+
+ if (atomic_read(&cmdq->usage) <= 0) {
+ cmdq_err("%s gce off cmdq:%p thread:%u",
+ __func__, cmdq, thread->idx);
+ dump_stack();
+ spin_unlock_irqrestore(&chan->lock, flags);
+ return;
+ }
+
+ warn_rst = readl(thread->base + CMDQ_THR_WARM_RESET);
+ en = readl(thread->base + CMDQ_THR_ENABLE_TASK);
+ suspend = readl(thread->base + CMDQ_THR_SUSPEND_TASK);
+ status = readl(thread->base + CMDQ_THR_CURR_STATUS);
+ irq = readl(thread->base + CMDQ_THR_IRQ_STATUS);
+ irq_en = readl(thread->base + CMDQ_THR_IRQ_ENABLE);
+ curr_pa = cmdq_thread_get_pc(thread);
+ end_pa = cmdq_thread_get_end(thread);
+ cnt = readl(thread->base + CMDQ_THR_CNT);
+ wait_token = readl(thread->base + CMDQ_THR_WAIT_TOKEN);
+ cfg = readl(thread->base + CMDQ_THR_CFG);
+ prefetch = readl(thread->base + CMDQ_THR_PREFETCH);
+ spr[0] = readl(thread->base + CMDQ_THR_SPR);
+ spr[1] = readl(thread->base + CMDQ_THR_SPR + 4);
+ spr[2] = readl(thread->base + CMDQ_THR_SPR + 8);
+ spr[3] = readl(thread->base + CMDQ_THR_SPR + 12);
+
+ list_for_each_entry(task, &thread->task_busy_list, list_entry) {
+ empty = false;
+
+ if (curr_pa == cmdq_task_get_end_pa(task->pkt))
+ curr_va = (u64 *)cmdq_task_get_end_va(task->pkt);
+ else
+ curr_va = (u64 *)cmdq_task_current_va(curr_pa,
+ task->pkt);
+ if (!curr_va)
+ continue;
+ inst = *curr_va;
+ pkt = task->pkt;
+ size = pkt->cmd_buf_size;
+ pri = pkt->priority;
+
+ buf = list_first_entry(&pkt->buf, typeof(*buf), list_entry);
+ va_base = buf->va_base;
+ pa_base = buf->pa_base;
+
+ buf = list_last_entry(&pkt->buf, typeof(*buf), list_entry);
+ end_va = (u64 *)(buf->va_base + CMDQ_CMD_BUFFER_SIZE -
+ pkt->avail_buf_size - CMDQ_INST_SIZE * 2);
+ last_inst[0] = *end_va;
+ last_inst[1] = *++end_va;
+ break;
+ }
+ spin_unlock_irqrestore(&chan->lock, flags);
+
+ cmdq_util_msg(
+ "thd:%u pc:%#010x(%p) inst:%#018llx end:%#010x cnt:%#x token:%#010x",
+ thread->idx, curr_pa, curr_va, inst, end_pa, cnt, wait_token);
+ cmdq_util_msg(
+ "rst:%#x en:%#x suspend:%#x status:%#x irq:%x en:%#x cfg:%#x",
+ warn_rst, en, suspend, status, irq, irq_en, cfg);
+ cmdq_util_msg("spr:%#x %#x %#x %#x",
+ spr[0], spr[1], spr[2], spr[3]);
+ if (pkt) {
+ cmdq_util_msg(
+ "cur pkt:0x%p size:%zu va:0x%p pa:%pa priority:%u",
+ pkt, size, va_base, &pa_base, pri);
+ cmdq_util_msg("last inst %#018llx %#018llx",
+ last_inst[0], last_inst[1]);
+
+ if (cl_pkt && cl_pkt != pkt) {
+ buf = list_first_entry(&cl_pkt->buf, typeof(*buf),
+ list_entry);
+ cmdq_util_msg(
+ "expect pkt:0x%p size:%zu va:0x%p pa:%pa priority:%u",
+ cl_pkt, cl_pkt->cmd_buf_size, buf->va_base,
+ &buf->pa_base, cl_pkt->priority);
+
+ curr_va = NULL;
+ curr_pa = 0;
+ }
+ } else {
+ /* empty or not found case is critical */
+ cmdq_util_msg("pkt not available (%s)",
+ empty ? "thread empty" : "pc not match");
+ }
+
+/* if pc match end and irq flag on, dump irq status */
+ if (curr_pa == end_pa && irq)
+#ifdef CONFIG_MTK_GIC_V3_EXT
+ mt_irq_dump_status(cmdq->irq);
+#else
+ cmdq_util_msg("gic dump not support irq id:%u\n",
+ cmdq->irq);
+#endif
+
+ if (inst_out)
+ *inst_out = curr_va;
+ if (pc_out)
+ *pc_out = curr_pa;
+}
+EXPORT_SYMBOL(cmdq_thread_dump);
+
+void cmdq_thread_dump_all(void *mbox_cmdq)
+{
+ struct cmdq *cmdq = mbox_cmdq;
+ u32 i;
+ u32 en, curr_pa, end_pa;
+ s32 usage = atomic_read(&cmdq->usage);
+
+ cmdq_util_msg("cmdq:%#x usage:%d", (u32)cmdq->base_pa, usage);
+ if (usage <= 0)
+ return;
+
+ for (i = 0; i < cmdq->thread_nr; i++) {
+ struct cmdq_thread *thread = &cmdq->thread[i];
+
+ if (!thread->occupied || list_empty(&thread->task_busy_list))
+ continue;
+
+ en = readl(thread->base + CMDQ_THR_ENABLE_TASK);
+ if (!en)
+ continue;
+
+ curr_pa = cmdq_thread_get_pc(thread);
+ end_pa = cmdq_thread_get_end(thread);
+
+ cmdq_util_msg("thd idx:%u pc:%#x end:%#x",
+ thread->idx, curr_pa, end_pa);
+ }
+
+}
+EXPORT_SYMBOL(cmdq_thread_dump_all);
+
+void cmdq_thread_dump_all_seq(void *mbox_cmdq, struct seq_file *seq)
+{
+ struct cmdq *cmdq = mbox_cmdq;
+ u32 i;
+ u32 en, curr_pa, end_pa;
+ s32 usage = atomic_read(&cmdq->usage);
+
+ seq_printf(seq, "[cmdq] cmdq:%#x usage:%d\n",
+ (u32)cmdq->base_pa, usage);
+ if (usage <= 0)
+ return;
+
+ for (i = 0; i < cmdq->thread_nr; i++) {
+ struct cmdq_thread *thread = &cmdq->thread[i];
+
+ if (!thread->occupied || list_empty(&thread->task_busy_list))
+ continue;
+
+ en = readl(thread->base + CMDQ_THR_ENABLE_TASK);
+ if (!en)
+ continue;
+
+ curr_pa = cmdq_thread_get_pc(thread);
+ end_pa = cmdq_thread_get_end(thread);
+
+ seq_printf(seq, "[cmdq] thd idx:%u pc:%#x end:%#x\n",
+ thread->idx, curr_pa, end_pa);
+ }
+
+}
+EXPORT_SYMBOL(cmdq_thread_dump_all_seq);
+
+void cmdq_mbox_thread_remove_task(struct mbox_chan *chan,
+ struct cmdq_pkt *pkt)
+{
+ struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv;
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ struct cmdq_task *task, *tmp;
+ unsigned long flags;
+ u32 pa_curr;
+ bool curr_task = false;
+ bool last_task = false;
+ struct list_head removes;
+
+ INIT_LIST_HEAD(&removes);
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ if (list_empty(&thread->task_busy_list)) {
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ cmdq_msg("remove task from thread idx:%u usage:%d pkt:0x%p",
+ thread->idx, atomic_read(&cmdq->usage), pkt);
+
+ WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0);
+
+ /*
+ * Although IRQ is disabled, GCE continues to execute.
+ * It may have pending IRQ before GCE thread is suspended,
+ * so check this condition again.
+ */
+ cmdq_thread_irq_handler(cmdq, thread, &removes);
+
+ if (list_empty(&thread->task_busy_list)) {
+ cmdq_err("thread:%u empty after irq handle in timeout",
+ thread->idx);
+ cmdq_thread_resume(thread);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ pa_curr = cmdq_thread_get_pc(thread);
+
+ list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
+ list_entry) {
+ if (task->pkt != pkt)
+ continue;
+
+ curr_task = cmdq_task_is_current_run(pa_curr, task->pkt);
+ if (list_is_last(&task->list_entry, &thread->task_busy_list))
+ last_task = true;
+
+ if (task == list_first_entry(&thread->task_busy_list,
+ typeof(*task), list_entry) &&
+ thread->dirty) {
+ /* task during error handling, skip */
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ cmdq_task_exec_done(task, curr_task ? -ECONNABORTED : 0);
+ kfree(task);
+ break;
+ }
+
+ if (list_empty(&thread->task_busy_list)) {
+ cmdq_thread_resume(thread);
+ cmdq_thread_disable(cmdq, thread);
+ cmdq_clk_disable(cmdq);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ if (curr_task) {
+ task = list_first_entry(&thread->task_busy_list,
+ typeof(*task), list_entry);
+
+ cmdq_thread_set_pc(thread, task->pa_base);
+ mod_timer(&thread->timeout, jiffies +
+ msecs_to_jiffies(thread->timeout_ms));
+ thread->timer_mod = sched_clock();
+ }
+
+ if (last_task) {
+ /* reset end addr again if remove last task */
+ task = list_last_entry(&thread->task_busy_list,
+ typeof(*task), list_entry);
+ cmdq_thread_set_end(thread, cmdq_task_get_end_pa(task->pkt));
+ }
+
+ cmdq_thread_resume(thread);
+
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ list_for_each_entry_safe(task, tmp, &removes, list_entry) {
+ list_del(&task->list_entry);
+ kfree(task);
+ }
+}
+EXPORT_SYMBOL(cmdq_mbox_thread_remove_task);
+
+static void cmdq_mbox_thread_stop(struct cmdq_thread *thread)
+{
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq, mbox);
+ struct cmdq_task *task, *tmp;
+ unsigned long flags;
+ struct list_head removes;
+
+ INIT_LIST_HEAD(&removes);
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ if (list_empty(&thread->task_busy_list)) {
+ cmdq_err("stop empty thread:%u", thread->idx);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0);
+
+ /*
+ * Although IRQ is disabled, GCE continues to execute.
+ * It may have pending IRQ before GCE thread is suspended,
+ * so check this condition again.
+ */
+ cmdq_thread_irq_handler(cmdq, thread, &removes);
+ if (list_empty(&thread->task_busy_list)) {
+ cmdq_err("thread:%u empty after irq handle in disable thread",
+ thread->idx);
+ cmdq_thread_resume(thread);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return;
+ }
+
+ list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
+ list_entry) {
+ cmdq_task_exec_done(task, -ECONNABORTED);
+ kfree(task);
+ }
+
+ cmdq_thread_disable(cmdq, thread);
+ cmdq_clk_disable(cmdq);
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ list_for_each_entry_safe(task, tmp, &removes, list_entry) {
+ list_del(&task->list_entry);
+ kfree(task);
+ }
+}
+
+void cmdq_mbox_channel_stop(struct mbox_chan *chan)
+{
+ cmdq_mbox_thread_stop(chan->con_priv);
+}
+EXPORT_SYMBOL(cmdq_mbox_channel_stop);
+
+static int cmdq_suspend(struct device *dev)
+{
+ struct cmdq *cmdq = dev_get_drvdata(dev);
+ struct cmdq_thread *thread;
+ int i;
+ bool task_running = false;
+
+ cmdq->suspended = true;
+
+ for (i = 0; i < cmdq->thread_nr; i++) {
+ thread = &cmdq->thread[i];
+ if (!list_empty(&thread->task_busy_list)) {
+ cmdq_mbox_thread_stop(thread);
+ task_running = true;
+ cmdq_err("thread %d running", i);
+ }
+ }
+
+ if (task_running) {
+ dev_warn(dev, "exist running task(s) in suspend\n");
+ schedule();
+ }
+
+ clk_unprepare(cmdq->clock_timer);
+ clk_unprepare(cmdq->clock);
+ return 0;
+}
+
+static int cmdq_resume(struct device *dev)
+{
+ struct cmdq *cmdq = dev_get_drvdata(dev);
+
+ WARN_ON(clk_prepare(cmdq->clock) < 0);
+ WARN_ON(clk_prepare(cmdq->clock_timer) < 0);
+ cmdq->suspended = false;
+ return 0;
+}
+
+static int cmdq_remove(struct platform_device *pdev)
+{
+ struct cmdq *cmdq = platform_get_drvdata(pdev);
+
+ destroy_workqueue(cmdq->buf_dump_wq);
+ mbox_controller_unregister(&cmdq->mbox);
+ clk_unprepare(cmdq->clock_timer);
+ clk_unprepare(cmdq->clock);
+ return 0;
+}
+
+static int cmdq_mbox_send_data(struct mbox_chan *chan, void *data)
+{
+ cmdq_trace_begin("%s", __func__);
+ cmdq_task_exec(data, chan->con_priv);
+ cmdq_trace_end();
+ return 0;
+}
+
+static int cmdq_mbox_startup(struct mbox_chan *chan)
+{
+ struct cmdq_thread *thread = chan->con_priv;
+
+ thread->occupied = true;
+ return 0;
+}
+
+static void cmdq_mbox_shutdown(struct mbox_chan *chan)
+{
+ struct cmdq_thread *thread = chan->con_priv;
+
+ cmdq_mbox_thread_stop(chan->con_priv);
+ thread->occupied = false;
+}
+
+static bool cmdq_mbox_last_tx_done(struct mbox_chan *chan)
+{
+ return true;
+}
+
+static const struct mbox_chan_ops cmdq_mbox_chan_ops = {
+ .send_data = cmdq_mbox_send_data,
+ .startup = cmdq_mbox_startup,
+ .shutdown = cmdq_mbox_shutdown,
+ .last_tx_done = cmdq_mbox_last_tx_done,
+};
+
+u32 cmdq_thread_timeout_backup(struct cmdq_thread *thread, const u32 ms)
+{
+ u32 backup = thread->timeout_ms;
+
+ thread->timeout_ms = ms;
+ return backup;
+}
+EXPORT_SYMBOL(cmdq_thread_timeout_backup);
+
+void cmdq_thread_timeout_restore(struct cmdq_thread *thread, const u32 ms)
+{
+ thread->timeout_ms = ms;
+}
+EXPORT_SYMBOL(cmdq_thread_timeout_restore);
+
+static struct mbox_chan *cmdq_xlate(struct mbox_controller *mbox,
+ const struct of_phandle_args *sp)
+{
+ int ind = sp->args[0];
+ struct cmdq_thread *thread;
+
+ if (ind >= mbox->num_chans)
+ return ERR_PTR(-EINVAL);
+
+ thread = mbox->chans[ind].con_priv;
+ thread->timeout_ms = sp->args[1] != 0 ?
+ sp->args[1] : CMDQ_TIMEOUT_DEFAULT;
+ thread->priority = sp->args[2];
+ thread->chan = &mbox->chans[ind];
+
+ return &mbox->chans[ind];
+}
+
+static s32 cmdq_config_prefetch(struct device_node *np, struct cmdq *cmdq)
+{
+ u32 i, prefetch_cnt = 0, prefetchs[4] = {0};
+ s32 err;
+
+ cmdq->prefetch = 0;
+ of_property_read_u32(np, "max_prefetch_cnt", &prefetch_cnt);
+ if (!prefetch_cnt)
+ return 0;
+
+ if (prefetch_cnt > ARRAY_SIZE(prefetchs)) {
+ cmdq_err("prefetch count more than expect:%u",
+ prefetch_cnt);
+ prefetch_cnt = ARRAY_SIZE(prefetchs);
+ }
+
+ err = of_property_read_u32_array(np, "prefetch_size",
+ prefetchs, prefetch_cnt);
+ if (err != 0) {
+ /* print log but do notify error hw setting */
+ cmdq_err("read prefetch count:%u size error:%d",
+ prefetch_cnt, err);
+ return -EINVAL;
+ }
+
+ if (!prefetch_cnt)
+ return 0;
+
+ for (i = 0; i < prefetch_cnt; i++)
+ cmdq->prefetch |= (prefetchs[i] / 32 - 1) << (i * 4);
+
+ cmdq_msg("prefetch size configure:0x%x", cmdq->prefetch);
+ return 0;
+}
+
+static void cmdq_config_dma_mask(struct device *dev)
+{
+ u32 dma_mask_bit = 0;
+ s32 ret;
+
+ ret = of_property_read_u32(dev->of_node, "dma_mask_bit",
+ &dma_mask_bit);
+ /* if not assign from dts, give default 32bit for legacy chip */
+ if (ret != 0 || !dma_mask_bit)
+ dma_mask_bit = 32;
+ ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(dma_mask_bit));
+ cmdq_msg("mbox set dma mask bit:%u result:%d\n",
+ dma_mask_bit, ret);
+}
+
+static void cmdq_config_default_token(struct device *dev, struct cmdq *cmdq)
+{
+ int count, ret;
+
+ count = of_property_count_u16_elems(dev->of_node, "default_tokens");
+ if (count <= 0) {
+ cmdq_err("no default tokens:%d", count);
+ return;
+ }
+
+ cmdq->token_cnt = count;
+ cmdq->tokens = devm_kcalloc(dev, count, sizeof(*cmdq->tokens),
+ GFP_KERNEL);
+ ret = of_property_read_u16_array(dev->of_node,
+ "default_tokens", cmdq->tokens, count);
+ if (ret < 0) {
+ cmdq_err("of_property_read_u16_array fail err:%d", ret);
+ cmdq->token_cnt = 0;
+ }
+}
+
+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;
+
+ 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);
+ cmdq->base_pa = res->start;
+ if (IS_ERR(cmdq->base)) {
+ cmdq_err("failed to ioremap gce");
+ return PTR_ERR(cmdq->base);
+ }
+
+ cmdq->irq = platform_get_irq(pdev, 0);
+ if (!cmdq->irq) {
+ cmdq_err("failed to get irq");
+ return -EINVAL;
+ }
+ err = devm_request_irq(dev, cmdq->irq, cmdq_irq_handler, IRQF_SHARED,
+ "mtk_cmdq", cmdq);
+ if (err < 0) {
+ cmdq_err("failed to register ISR (%d)", err);
+ return err;
+ }
+
+ 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;
+ gce_shift_bit = plat_data->shift;
+ cmdq->irq_mask = GENMASK(cmdq->thread_nr - 1, 0);
+
+ dev_notice(dev, "cmdq thread:%u shift:%u base:0x%lx pa:0x%lx\n",
+ plat_data->thread_nr, plat_data->shift,
+ (unsigned long)cmdq->base,
+ (unsigned long)cmdq->base_pa);
+
+ cmdq_msg("cmdq thread:%u shift:%u base:0x%lx pa:0x%lx\n",
+ plat_data->thread_nr, plat_data->shift,
+ (unsigned long)cmdq->base,
+ (unsigned long)cmdq->base_pa);
+
+ cmdq_config_prefetch(dev->of_node, cmdq);
+ cmdq_config_dma_mask(dev);
+ cmdq_config_default_token(dev, cmdq);
+
+ cmdq->clock = devm_clk_get(dev, "gce");
+ if (IS_ERR(cmdq->clock)) {
+ cmdq_err("failed to get gce clk");
+ cmdq->clock = NULL;
+ }
+
+ cmdq->clock_timer = devm_clk_get(dev, "gce-timer");
+ if (IS_ERR(cmdq->clock_timer)) {
+ cmdq_err("failed to get gce timer clk");
+ cmdq->clock_timer = NULL;
+ }
+
+ cmdq->mbox.dev = dev;
+ cmdq->mbox.chans = devm_kcalloc(dev, plat_data->thread_nr,
+ sizeof(*cmdq->mbox.chans), GFP_KERNEL);
+ if (!cmdq->mbox.chans)
+ return -ENOMEM;
+
+ cmdq->mbox.num_chans = plat_data->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;
+
+ for (i = 0; i < cmdq->thread_nr; i++) {
+ cmdq->thread[i].base = cmdq->base + CMDQ_THR_BASE +
+ CMDQ_THR_SIZE * i;
+ cmdq->thread[i].gce_pa = cmdq->base_pa;
+ INIT_LIST_HEAD(&cmdq->thread[i].task_busy_list);
+ timer_setup(&cmdq->thread[i].timeout,
+ cmdq_thread_handle_timeout, 0);
+ cmdq->thread[i].idx = i;
+ cmdq->mbox.chans[i].con_priv = &cmdq->thread[i];
+ INIT_WORK(&cmdq->thread[i].timeout_work,
+ cmdq_thread_handle_timeout_work);
+ }
+
+ err = mbox_controller_register(&cmdq->mbox);
+ if (err < 0) {
+ cmdq_err("failed to register mailbox:%d", err);
+ return err;
+ }
+ dev_notice(dev, "register mailbox successfully\n");
+
+ cmdq->buf_dump_wq = alloc_ordered_workqueue(
+ "%s", WQ_MEM_RECLAIM | WQ_HIGHPRI,
+ "cmdq_buf_dump");
+
+ cmdq->timeout_wq = create_singlethread_workqueue(
+ "cmdq_timeout_handler");
+
+ platform_set_drvdata(pdev, cmdq);
+ WARN_ON(clk_prepare(cmdq->clock) < 0);
+ WARN_ON(clk_prepare(cmdq->clock_timer) < 0);
+
+ wakeup_source_add(&cmdq->wake_lock);
+
+ spin_lock_init(&cmdq->lock);
+ clk_enable(cmdq->clock);
+ cmdq_init(cmdq);
+ clk_disable(cmdq->clock);
+
+ cmdq_mmp_init();
+
+#ifdef CONFIG_MTK_CMDQ_MBOX_EXT
+ cmdq->hwid = cmdq_util_track_ctrl(cmdq, cmdq->base_pa, false);
+#endif
+ 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};
+static const struct gce_plat gce_plat_v4 = {.thread_nr = 24, .shift = 3};
+
+static const struct of_device_id cmdq_of_ids[] = {
+ {.compatible = "mediatek,mt8173-gce", .data = (void *)&gce_plat_v2},
+ {.compatible = "mediatek,mt6761-gce", .data = (void *)&gce_plat_v2},
+ {.compatible = "mediatek,mt6779-gce", .data = (void *)&gce_plat_v4},
+ {.compatible = "mediatek,mailbox-gce", .data = (void *)&gce_plat_v4},
+ {}
+};
+
+static struct platform_driver cmdq_drv = {
+ .probe = cmdq_probe,
+ .remove = cmdq_remove,
+ .driver = {
+ .name = CMDQ_DRIVER_NAME,
+ .pm = &cmdq_pm_ops,
+ .of_match_table = cmdq_of_ids,
+ }
+};
+
+static __init int cmdq_drv_init(void)
+{
+ u32 err = 0;
+
+ cmdq_msg("%s enter", __func__);
+
+ err = platform_driver_register(&cmdq_drv);
+ if (err) {
+ cmdq_err("platform driver register failed:%d", err);
+ return err;
+ }
+
+ return 0;
+}
+
+void cmdq_mbox_enable(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ WARN_ON(clk_prepare(cmdq->clock) < 0);
+ cmdq_clk_enable(cmdq);
+}
+
+void cmdq_mbox_disable(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ cmdq_clk_disable(cmdq);
+ clk_unprepare(cmdq->clock);
+}
+
+s32 cmdq_mbox_get_usage(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ return atomic_read(&cmdq->usage);
+}
+
+void *cmdq_mbox_get_base(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ return (void *)cmdq->base;
+}
+
+phys_addr_t cmdq_mbox_get_base_pa(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ return cmdq->base_pa;
+}
+
+struct device *cmdq_mbox_get_dev(void *chan)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ return cmdq->mbox.dev;
+}
+
+s32 cmdq_mbox_thread_reset(void *chan)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq,
+ mbox);
+
+ return cmdq_thread_reset(cmdq, thread);
+}
+EXPORT_SYMBOL(cmdq_mbox_thread_reset);
+
+s32 cmdq_mbox_thread_suspend(void *chan)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq,
+ mbox);
+
+ return cmdq_thread_suspend(cmdq, thread);
+}
+EXPORT_SYMBOL(cmdq_mbox_thread_suspend);
+
+void cmdq_mbox_thread_disable(void *chan)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+ struct cmdq *cmdq = container_of(thread->chan->mbox, struct cmdq,
+ mbox);
+
+ cmdq_thread_disable(cmdq, thread);
+}
+EXPORT_SYMBOL(cmdq_mbox_thread_disable);
+
+u32 cmdq_mbox_get_thread_timeout(void *chan)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+
+ return thread->timeout_ms;
+}
+EXPORT_SYMBOL(cmdq_mbox_get_thread_timeout);
+
+u32 cmdq_mbox_set_thread_timeout(void *chan, u32 timeout)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+ unsigned long flags;
+ u32 timeout_prv;
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+ timeout_prv = thread->timeout_ms;
+ thread->timeout_ms = timeout;
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ return timeout_prv;
+}
+EXPORT_SYMBOL(cmdq_mbox_set_thread_timeout);
+
+s32 cmdq_mbox_chan_id(void *chan)
+{
+ struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+
+ if (!thread || !thread->occupied)
+ return -1;
+
+ return thread->idx;
+}
+EXPORT_SYMBOL(cmdq_mbox_chan_id);
+
+s32 cmdq_task_get_thread_pc(struct mbox_chan *chan, dma_addr_t *pc_out)
+{
+ struct cmdq_thread *thread;
+ dma_addr_t pc = 0;
+
+ if (!pc_out || !chan)
+ return -EINVAL;
+
+ thread = chan->con_priv;
+ pc = cmdq_thread_get_pc(thread);
+
+ *pc_out = pc;
+
+ return 0;
+}
+
+s32 cmdq_task_get_thread_irq(struct mbox_chan *chan, u32 *irq_out)
+{
+ struct cmdq_thread *thread;
+
+ if (!irq_out || !chan)
+ return -EINVAL;
+
+ thread = chan->con_priv;
+ *irq_out = readl(thread->base + CMDQ_THR_IRQ_STATUS);
+
+ return 0;
+}
+
+s32 cmdq_task_get_thread_irq_en(struct mbox_chan *chan, u32 *irq_en_out)
+{
+ struct cmdq_thread *thread;
+
+ if (!irq_en_out || !chan)
+ return -EINVAL;
+
+ thread = chan->con_priv;
+ *irq_en_out = readl(thread->base + CMDQ_THR_IRQ_ENABLE);
+
+ return 0;
+}
+
+s32 cmdq_task_get_thread_end_addr(struct mbox_chan *chan,
+ dma_addr_t *end_addr_out)
+{
+ struct cmdq_thread *thread;
+
+ if (!end_addr_out || !chan)
+ return -EINVAL;
+
+ thread = chan->con_priv;
+ *end_addr_out = cmdq_thread_get_end(thread);
+
+ return 0;
+}
+
+s32 cmdq_task_get_task_info_from_thread_unlock(struct mbox_chan *chan,
+ struct list_head *task_list_out, u32 *task_num_out)
+{
+ struct cmdq_thread *thread;
+ struct cmdq_task *task;
+ u32 task_num = 0;
+
+ if (!chan || !task_list_out)
+ return -EINVAL;
+
+ thread = chan->con_priv;
+ list_for_each_entry(task, &thread->task_busy_list, list_entry) {
+ struct cmdq_thread_task_info *task_info;
+
+ task_info = kzalloc(sizeof(*task_info), GFP_ATOMIC);
+ if (!task_info)
+ continue;
+
+ task_info->pa_base = task->pa_base;
+
+ /* copy pkt here to avoid released */
+ task_info->pkt = kzalloc(sizeof(*task_info->pkt), GFP_ATOMIC);
+ if (!task_info->pkt) {
+ kfree(task_info);
+ continue;
+ }
+ memcpy(task_info->pkt, task->pkt, sizeof(*task->pkt));
+
+ INIT_LIST_HEAD(&task_info->list_entry);
+ list_add_tail(&task_info->list_entry, task_list_out);
+ task_num++;
+ }
+
+ if (task_num_out)
+ *task_num_out = task_num;
+
+ return 0;
+}
+
+s32 cmdq_task_get_pkt_from_thread(struct mbox_chan *chan,
+ struct cmdq_pkt **pkt_list_out, u32 pkt_list_size, u32 *pkt_count_out)
+{
+ struct cmdq_thread *thread;
+ struct cmdq_task *task;
+ u32 pkt_num = 0;
+ u32 tmp_num = 0;
+ unsigned long flags;
+
+ if (!chan || !pkt_list_out || !pkt_count_out) {
+ if (chan) {
+ thread = chan->con_priv;
+ list_for_each_entry(task, &thread->task_busy_list,
+ list_entry) {
+ tmp_num++;
+ }
+
+ }
+
+ if (pkt_count_out)
+ *pkt_count_out = pkt_num;
+
+ return -EINVAL;
+ }
+
+ thread = chan->con_priv;
+
+ spin_lock_irqsave(&thread->chan->lock, flags);
+
+ if (list_empty(&thread->task_busy_list)) {
+ *pkt_count_out = pkt_num;
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+ return 0;
+ }
+
+ list_for_each_entry(task, &thread->task_busy_list, list_entry) {
+ if (pkt_list_size == pkt_num)
+ break;
+ pkt_list_out[pkt_num] = task->pkt;
+ pkt_num++;
+ }
+
+ spin_unlock_irqrestore(&thread->chan->lock, flags);
+
+ *pkt_count_out = pkt_num;
+
+ return 0;
+}
+
+void cmdq_set_event(void *chan, u16 event_id)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ writel((1L << 16) | event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+}
+EXPORT_SYMBOL(cmdq_set_event);
+
+void cmdq_clear_event(void *chan, u16 event_id)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ writel(event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+}
+EXPORT_SYMBOL(cmdq_clear_event);
+
+u32 cmdq_get_event(void *chan, u16 event_id)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+
+ writel(0x3FF & event_id, cmdq->base + CMDQ_SYNC_TOKEN_ID);
+ return readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL);
+}
+EXPORT_SYMBOL(cmdq_get_event);
+
+void cmdq_event_verify(void *chan, u16 event_id)
+{
+ struct cmdq *cmdq = container_of(((struct mbox_chan *)chan)->mbox,
+ typeof(*cmdq), mbox);
+ /* should be CMDQ_SYNC_TOKEN_USER_0 */
+ const u16 test_token = 649;
+ u32 i;
+
+ cmdq_msg("chan:%lx cmdq:%lx event:%u",
+ (unsigned long)chan, (unsigned long)cmdq, event_id);
+
+ if (event_id > 512)
+ event_id = 512;
+
+ /* check if this event can be set and clear */
+ writel((1L << 16) | event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ writel(event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ if (!readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL))
+ cmdq_msg("event cannot be set:%u", event_id);
+
+ writel(event_id, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ if (readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL))
+ cmdq_msg("event cannot be clear:%u", event_id);
+
+ /* check if sw token can be set and clear */
+ writel((1L << 16) | test_token, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ writel(test_token, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ if (!readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL))
+ cmdq_msg("event cannot be set:%u", test_token);
+
+ writel(test_token, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ if (readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL))
+ cmdq_msg("event cannot be clear:%u", test_token);
+
+ /* clear all event first */
+ for (i = 0; i < event_id + 20; i++)
+ writel(i, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+
+ /* now see if any event unable to clear */
+ for (i = 0; i < event_id + 20; i++) {
+ writel(i, cmdq->base + CMDQ_SYNC_TOKEN_UPD);
+ if (readl(cmdq->base + CMDQ_SYNC_TOKEN_VAL))
+ cmdq_msg("event still on:%u", i);
+ }
+
+ cmdq_msg("end debug event for %u", event_id);
+}
+EXPORT_SYMBOL(cmdq_event_verify);
+
+unsigned long cmdq_get_tracing_mark(void)
+{
+ static unsigned long __read_mostly tracing_mark_write_addr;
+
+ if (unlikely(tracing_mark_write_addr == 0))
+ tracing_mark_write_addr =
+ kallsyms_lookup_name("tracing_mark_write");
+
+ return tracing_mark_write_addr;
+}
+
+#if IS_ENABLED(CMDQ_MMPROFILE_SUPPORT)
+void cmdq_mmp_wait(struct mbox_chan *chan, void *pkt)
+{
+ struct cmdq_thread *thread = chan->con_priv;
+ struct cmdq *cmdq = container_of(chan->mbox, typeof(*cmdq), mbox);
+
+ mmprofile_log_ex(cmdq_mmp.wait, MMPROFILE_FLAG_PULSE,
+ MMP_THD(thread, cmdq), (unsigned long)pkt);
+}
+EXPORT_SYMBOL(cmdq_mmp_wait);
+#endif
+
+arch_initcall(cmdq_drv_init);