diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/media/platform/qcom/venus/hfi_venus.c | 108 |
1 files changed, 81 insertions, 27 deletions
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 734ce11b0ed0..124085556b94 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -532,6 +532,24 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) u32 val; int ret; + if (IS_V4(hdev->core)) { + val = venus_readl(hdev, WRAPPER_CPU_AXI_HALT); + val |= WRAPPER_CPU_AXI_HALT_HALT; + venus_writel(hdev, WRAPPER_CPU_AXI_HALT, val); + + ret = readl_poll_timeout(base + WRAPPER_CPU_AXI_HALT_STATUS, + val, + val & WRAPPER_CPU_AXI_HALT_STATUS_IDLE, + POLL_INTERVAL_US, + VBIF_AXI_HALT_ACK_TIMEOUT_US); + if (ret) { + dev_err(dev, "AXI bus port halt timeout\n"); + return ret; + } + + return 0; + } + /* Halt AXI and AXI IMEM VBIF Access */ val = venus_readl(hdev, VBIF_AXI_HALT_CTRL0); val |= VBIF_AXI_HALT_CTRL0_HALT_REQ; @@ -861,6 +879,14 @@ static int venus_sys_set_default_properties(struct venus_hfi_device *hdev) if (ret) dev_warn(dev, "setting fw debug msg ON failed (%d)\n", ret); + /* + * Idle indicator is disabled by default on some 4xx firmware versions, + * enable it explicitly in order to make suspend functional by checking + * WFI (wait-for-interrupt) bit. + */ + if (IS_V4(hdev->core)) + venus_sys_idle_indicator = true; + ret = venus_sys_set_idle_message(hdev, venus_sys_idle_indicator); if (ret) dev_warn(dev, "setting idle response ON failed (%d)\n", ret); @@ -1073,6 +1099,10 @@ static int venus_core_init(struct venus_core *core) if (ret) dev_warn(dev, "failed to send image version pkt to fw\n"); + ret = venus_sys_set_default_properties(hdev); + if (ret) + return ret; + return 0; } @@ -1117,10 +1147,6 @@ static int venus_session_init(struct venus_inst *inst, u32 session_type, struct hfi_session_init_pkt pkt; int ret; - ret = venus_sys_set_default_properties(hdev); - if (ret) - return ret; - ret = pkt_session_init(&pkt, inst, session_type, codec); if (ret) goto err; @@ -1426,13 +1452,40 @@ static int venus_suspend_1xx(struct venus_core *core) return 0; } +static bool venus_cpu_and_video_core_idle(struct venus_hfi_device *hdev) +{ + u32 ctrl_status, cpu_status; + + cpu_status = venus_readl(hdev, WRAPPER_CPU_STATUS); + ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); + + if (cpu_status & WRAPPER_CPU_STATUS_WFI && + ctrl_status & CPU_CS_SCIACMDARG0_INIT_IDLE_MSG_MASK) + return true; + + return false; +} + +static bool venus_cpu_idle_and_pc_ready(struct venus_hfi_device *hdev) +{ + u32 ctrl_status, cpu_status; + + cpu_status = venus_readl(hdev, WRAPPER_CPU_STATUS); + ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); + + if (cpu_status & WRAPPER_CPU_STATUS_WFI && + ctrl_status & CPU_CS_SCIACMDARG0_PC_READY) + return true; + + return false; +} + static int venus_suspend_3xx(struct venus_core *core) { struct venus_hfi_device *hdev = to_hfi_priv(core); struct device *dev = core->dev; - u32 ctrl_status, wfi_status; + bool val; int ret; - int cnt = 100; if (!hdev->power_enabled || hdev->suspended) return 0; @@ -1446,29 +1499,30 @@ static int venus_suspend_3xx(struct venus_core *core) return -EINVAL; } - ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); - if (!(ctrl_status & CPU_CS_SCIACMDARG0_PC_READY)) { - wfi_status = venus_readl(hdev, WRAPPER_CPU_STATUS); - ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); - - ret = venus_prepare_power_collapse(hdev, false); - if (ret) { - dev_err(dev, "prepare for power collapse fail (%d)\n", - ret); - return ret; - } + /* + * Power collapse sequence for Venus 3xx and 4xx versions: + * 1. Check for ARM9 and video core to be idle by checking WFI bit + * (bit 0) in CPU status register and by checking Idle (bit 30) in + * Control status register for video core. + * 2. Send a command to prepare for power collapse. + * 3. Check for WFI and PC_READY bits. + */ + ret = readx_poll_timeout(venus_cpu_and_video_core_idle, hdev, val, val, + 1500, 100 * 1500); + if (ret) + return ret; - cnt = 100; - while (cnt--) { - wfi_status = venus_readl(hdev, WRAPPER_CPU_STATUS); - ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); - if (ctrl_status & CPU_CS_SCIACMDARG0_PC_READY && - wfi_status & BIT(0)) - break; - usleep_range(1000, 1500); - } + ret = venus_prepare_power_collapse(hdev, false); + if (ret) { + dev_err(dev, "prepare for power collapse fail (%d)\n", ret); + return ret; } + ret = readx_poll_timeout(venus_cpu_idle_and_pc_ready, hdev, val, val, + 1500, 100 * 1500); + if (ret) + return ret; + mutex_lock(&hdev->lock); ret = venus_power_off(hdev); @@ -1487,7 +1541,7 @@ static int venus_suspend_3xx(struct venus_core *core) static int venus_suspend(struct venus_core *core) { - if (core->res->hfi_version == HFI_VERSION_3XX) + if (IS_V3(core) || IS_V4(core)) return venus_suspend_3xx(core); return venus_suspend_1xx(core); |