function_graph跟踪器 trace-cmd引入 安装trace-cmd trace-cmd常见命令 trace-cmd使用流程 trace-cmd使用...
ssize_tread(intfd,void*buf,size_tcount);fd 是文件描述符（调用 open() 返回），buf 是用于存储读...
11. by [bai] prep. 凭,靠,沿 12. press [pres] v. 按,压 13. with [wie, wiθ] prep. 用,与,随着 14. format [?f?:m?t] n. 格式 15. change [t?eind?] v. 更换,改变,变动 16. cursor [‘k?:s?] n. 光标 17. directory [di?rekt?ri] n. 目录,索引簿 18. from ...
接下来,当发现是两个不同的进程直接切换,那么需要切换地址空间了。 switch_mm->__switch_mm->check_and_switch_context(next)//next为下一个进程的进程描述符 arch/arm64/mm/context.c->...//ASID分配相关若干代码->cpu_switch_mm(mm->pgd,mm)->cpu_do_switch_mm(virt_to_phys(pgd),mm)//virt_to...
* FIELD_{GET,PREP} macros take as first parameter shifted mask * from which they extract the base mask and shift amount. * Mask must be a compilation time constant. * * Example: * * #define REG_FIELD_A GENMASK(6, 0) * #define REG_FIELD_B BIT(7) ...
FIELD_PREP(STRTAB_STE_1_S1COR, STRTAB_STE_1_S1C_CACHE_WBRA) | FIELD_PREP(STRTAB_STE_1_S1CSH, ARM_SMMU_SH_ISH) | FIELD_PREP(STRTAB_STE_1_STRW, strw)); if (master->prg_resp_needs_ssid) dst[1] |= cpu_to_le64(STRTAB_STE_1_PPAR); if (smmu->features & ARM_SMMU_FEAT_STALL...
ops 回调 *添加rsvd 仅用于 irdma ABI 中的对齐 *清理iw_memreg_type enum v3-->v4: * 修复冰补丁中的 W=1 警告* 修复由 用于创建用户 AH 和多播的 pyverbs * 修复在 v2 提交 v2-->v3 中移植到 FIELD_PREP 期间引入的快速寄存器的描述符集问题: * rebase rdma for-next。 适应核心更改'1fb7f...
ctrl |= FIELD_PREP(MT_DMA_CTL_SD_LEN1, buf[1].len); if (buf[1].skip_unmap) entry->skip_buf1 = true; }if (i == nbufs - 1) ctrl |= MT_DMA_CTL_LAST_SEC0; else if (i == nbufs - 2) ctrl |= MT_DMA_CTL_LAST_SEC1;WRITE_ONCE(desc->buf0, cpu_to_le32(buf0));...
+ FIELD_PREP(CV18XX_PHY_RX_SRC_MSK, CV18XX_PHY_RX_SRC_INVERT_RX_CLK)); + sdhci_writel(host, val, priv->vendor_specific_area1 + CV18XX_SDHCI_PHY_TX_RX_DLY); +} + static const struct sdhci_ops sdhci_dwcmshc_ops = { .set_clock = sdhci_set_clock, .set_bus_width = sdhci...
1.创建进程fork 核心函数 __do_fork()-->copy_process-->dup_mm() 1. 2. 3. dum_mm函数 staticstructmm_struct*dup_mm(structtask_struct*tsk,structmm_struct*oldmm){structmm_struct*mm;interr;mm=allocate_mm();if(!mm)gotofail_nomem;memcpy(mm,oldmm,sizeof(*mm));if(!mm_init(mm,tsk,...