Lines Matching refs:sdma
362 struct sdma_engine *sdma; member
596 static inline u32 chnenbl_ofs(struct sdma_engine *sdma, unsigned int event) in chnenbl_ofs() argument
598 u32 chnenbl0 = sdma->drvdata->chnenbl0; in chnenbl_ofs()
605 struct sdma_engine *sdma = sdmac->sdma; in sdma_config_ownership() local
612 evt = readl_relaxed(sdma->regs + SDMA_H_EVTOVR); in sdma_config_ownership()
613 mcu = readl_relaxed(sdma->regs + SDMA_H_HOSTOVR); in sdma_config_ownership()
614 dsp = readl_relaxed(sdma->regs + SDMA_H_DSPOVR); in sdma_config_ownership()
631 writel_relaxed(evt, sdma->regs + SDMA_H_EVTOVR); in sdma_config_ownership()
632 writel_relaxed(mcu, sdma->regs + SDMA_H_HOSTOVR); in sdma_config_ownership()
633 writel_relaxed(dsp, sdma->regs + SDMA_H_DSPOVR); in sdma_config_ownership()
638 static void sdma_enable_channel(struct sdma_engine *sdma, int channel) in sdma_enable_channel() argument
640 writel(BIT(channel), sdma->regs + SDMA_H_START); in sdma_enable_channel()
646 static int sdma_run_channel0(struct sdma_engine *sdma) in sdma_run_channel0() argument
651 sdma_enable_channel(sdma, 0); in sdma_run_channel0()
653 ret = readl_relaxed_poll_timeout_atomic(sdma->regs + SDMA_H_STATSTOP, in sdma_run_channel0()
656 dev_err(sdma->dev, "Timeout waiting for CH0 ready\n"); in sdma_run_channel0()
659 if (readl(sdma->regs + SDMA_H_CONFIG) == 0) in sdma_run_channel0()
660 writel_relaxed(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG); in sdma_run_channel0()
665 static int sdma_load_script(struct sdma_engine *sdma, void *buf, int size, in sdma_load_script() argument
668 struct sdma_buffer_descriptor *bd0 = sdma->bd0; in sdma_load_script()
681 spin_lock_irqsave(&sdma->channel_0_lock, flags); in sdma_load_script()
691 ret = sdma_run_channel0(sdma); in sdma_load_script()
693 spin_unlock_irqrestore(&sdma->channel_0_lock, flags); in sdma_load_script()
702 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_enable() local
705 u32 chnenbl = chnenbl_ofs(sdma, event); in sdma_event_enable()
707 val = readl_relaxed(sdma->regs + chnenbl); in sdma_event_enable()
709 writel_relaxed(val, sdma->regs + chnenbl); in sdma_event_enable()
714 struct sdma_engine *sdma = sdmac->sdma; in sdma_event_disable() local
716 u32 chnenbl = chnenbl_ofs(sdma, event); in sdma_event_disable()
719 val = readl_relaxed(sdma->regs + chnenbl); in sdma_event_disable()
721 writel_relaxed(val, sdma->regs + chnenbl); in sdma_event_disable()
733 struct sdma_engine *sdma = sdmac->sdma; in sdma_start_desc() local
748 sdma->channel_control[channel].base_bd_ptr = desc->bd_phys; in sdma_start_desc()
749 sdma->channel_control[channel].current_bd_ptr = desc->bd_phys; in sdma_start_desc()
750 sdma_enable_channel(sdma, sdmac->channel); in sdma_start_desc()
830 struct sdma_engine *sdma = dev_id; in sdma_int_handler() local
833 stat = readl_relaxed(sdma->regs + SDMA_H_INTR); in sdma_int_handler()
834 writel_relaxed(stat, sdma->regs + SDMA_H_INTR); in sdma_int_handler()
840 struct sdma_channel *sdmac = &sdma->channel[channel]; in sdma_int_handler()
868 struct sdma_engine *sdma = sdmac->sdma; in sdma_get_pc() local
883 emi_2_emi = sdma->script_addrs->ap_2_ap_addr; in sdma_get_pc()
886 emi_2_per = sdma->script_addrs->bp_2_ap_addr; in sdma_get_pc()
887 per_2_emi = sdma->script_addrs->ap_2_bp_addr; in sdma_get_pc()
890 per_2_emi = sdma->script_addrs->firi_2_mcu_addr; in sdma_get_pc()
891 emi_2_per = sdma->script_addrs->mcu_2_firi_addr; in sdma_get_pc()
894 per_2_emi = sdma->script_addrs->uart_2_mcu_addr; in sdma_get_pc()
895 emi_2_per = sdma->script_addrs->mcu_2_app_addr; in sdma_get_pc()
898 per_2_emi = sdma->script_addrs->uartsh_2_mcu_addr; in sdma_get_pc()
899 emi_2_per = sdma->script_addrs->mcu_2_shp_addr; in sdma_get_pc()
902 per_2_emi = sdma->script_addrs->ata_2_mcu_addr; in sdma_get_pc()
903 emi_2_per = sdma->script_addrs->mcu_2_ata_addr; in sdma_get_pc()
909 per_2_emi = sdma->script_addrs->app_2_mcu_addr; in sdma_get_pc()
910 emi_2_per = sdma->script_addrs->mcu_2_app_addr; in sdma_get_pc()
913 per_2_emi = sdma->script_addrs->ssish_2_mcu_addr; in sdma_get_pc()
914 emi_2_per = sdma->script_addrs->mcu_2_ssish_addr; in sdma_get_pc()
922 per_2_emi = sdma->script_addrs->shp_2_mcu_addr; in sdma_get_pc()
923 emi_2_per = sdma->script_addrs->mcu_2_shp_addr; in sdma_get_pc()
926 per_2_emi = sdma->script_addrs->asrc_2_mcu_addr; in sdma_get_pc()
927 emi_2_per = sdma->script_addrs->asrc_2_mcu_addr; in sdma_get_pc()
928 per_2_per = sdma->script_addrs->per_2_per_addr; in sdma_get_pc()
931 per_2_emi = sdma->script_addrs->shp_2_mcu_addr; in sdma_get_pc()
932 emi_2_per = sdma->script_addrs->mcu_2_shp_addr; in sdma_get_pc()
933 per_2_per = sdma->script_addrs->per_2_per_addr; in sdma_get_pc()
936 per_2_emi = sdma->script_addrs->mshc_2_mcu_addr; in sdma_get_pc()
937 emi_2_per = sdma->script_addrs->mcu_2_mshc_addr; in sdma_get_pc()
940 per_2_emi = sdma->script_addrs->dptc_dvfs_addr; in sdma_get_pc()
943 per_2_emi = sdma->script_addrs->spdif_2_mcu_addr; in sdma_get_pc()
944 emi_2_per = sdma->script_addrs->mcu_2_spdif_addr; in sdma_get_pc()
947 emi_2_per = sdma->script_addrs->ext_mem_2_ipu_addr; in sdma_get_pc()
961 struct sdma_engine *sdma = sdmac->sdma; in sdma_load_context() local
964 struct sdma_context_data *context = sdma->context; in sdma_load_context()
965 struct sdma_buffer_descriptor *bd0 = sdma->bd0; in sdma_load_context()
981 dev_dbg(sdma->dev, "load_address = %d\n", load_address); in sdma_load_context()
982 dev_dbg(sdma->dev, "wml = 0x%08x\n", (u32)sdmac->watermark_level); in sdma_load_context()
983 dev_dbg(sdma->dev, "shp_addr = 0x%08x\n", sdmac->shp_addr); in sdma_load_context()
984 dev_dbg(sdma->dev, "per_addr = 0x%08x\n", sdmac->per_addr); in sdma_load_context()
985 dev_dbg(sdma->dev, "event_mask0 = 0x%08x\n", (u32)sdmac->event_mask[0]); in sdma_load_context()
986 dev_dbg(sdma->dev, "event_mask1 = 0x%08x\n", (u32)sdmac->event_mask[1]); in sdma_load_context()
988 spin_lock_irqsave(&sdma->channel_0_lock, flags); in sdma_load_context()
1005 bd0->buffer_addr = sdma->context_phys; in sdma_load_context()
1007 ret = sdma_run_channel0(sdma); in sdma_load_context()
1009 spin_unlock_irqrestore(&sdma->channel_0_lock, flags); in sdma_load_context()
1022 struct sdma_engine *sdma = sdmac->sdma; in sdma_disable_channel() local
1025 writel_relaxed(BIT(channel), sdma->regs + SDMA_H_STATSTOP); in sdma_disable_channel()
1057 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_watermarklevel_for_p2p() local
1084 if (sdmac->per_address2 >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1085 sdmac->per_address2 <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1088 if (sdmac->per_address >= sdma->spba_start_addr && in sdma_set_watermarklevel_for_p2p()
1089 sdmac->per_address <= sdma->spba_end_addr) in sdma_set_watermarklevel_for_p2p()
1108 if (sdmac->event_id0 >= sdmac->sdma->drvdata->num_events) in sdma_config_channel()
1114 if (sdmac->event_id1 >= sdmac->sdma->drvdata->num_events) in sdma_config_channel()
1158 struct sdma_engine *sdma = sdmac->sdma; in sdma_set_channel_priority() local
1166 writel_relaxed(priority, sdma->regs + SDMA_CHNPRI_0 + 4 * channel); in sdma_set_channel_priority()
1171 static int sdma_request_channel0(struct sdma_engine *sdma) in sdma_request_channel0() argument
1175 sdma->bd0 = dma_zalloc_coherent(NULL, PAGE_SIZE, &sdma->bd0_phys, in sdma_request_channel0()
1177 if (!sdma->bd0) { in sdma_request_channel0()
1182 sdma->channel_control[0].base_bd_ptr = sdma->bd0_phys; in sdma_request_channel0()
1183 sdma->channel_control[0].current_bd_ptr = sdma->bd0_phys; in sdma_request_channel0()
1185 sdma_set_channel_priority(&sdma->channel[0], MXC_SDMA_DEFAULT_PRIORITY); in sdma_request_channel0()
1237 dev_dbg(sdmac->sdma->dev, "MEMCPY in case?\n"); in sdma_alloc_chan_resources()
1264 ret = clk_enable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1267 ret = clk_enable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1282 clk_disable(sdmac->sdma->clk_ahb); in sdma_alloc_chan_resources()
1284 clk_disable(sdmac->sdma->clk_ipg); in sdma_alloc_chan_resources()
1291 struct sdma_engine *sdma = sdmac->sdma; in sdma_free_chan_resources() local
1305 clk_disable(sdma->clk_ipg); in sdma_free_chan_resources()
1306 clk_disable(sdma->clk_ahb); in sdma_free_chan_resources()
1355 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_memcpy() local
1365 dev_dbg(sdma->dev, "memcpy: %pad->%pad, len=%zu, channel=%d.\n", in sdma_prep_memcpy()
1395 dev_dbg(sdma->dev, "entry %d: count: %zd dma: 0x%x %s%s\n", in sdma_prep_memcpy()
1412 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_slave_sg() local
1422 dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n", in sdma_prep_slave_sg()
1434 dev_err(sdma->dev, "SDMA channel %d: maximum bytes for sg entry exceeded: %d > %d\n", in sdma_prep_slave_sg()
1471 dev_dbg(sdma->dev, "entry %d: count: %d dma: %#llx %s%s\n", in sdma_prep_slave_sg()
1494 struct sdma_engine *sdma = sdmac->sdma; in sdma_prep_dma_cyclic() local
1500 dev_dbg(sdma->dev, "%s channel: %d\n", __func__, channel); in sdma_prep_dma_cyclic()
1511 dev_err(sdma->dev, "SDMA channel %d: maximum period size exceeded: %zu > %d\n", in sdma_prep_dma_cyclic()
1535 dev_dbg(sdma->dev, "entry %d: count: %zu dma: %#llx %s%s\n", in sdma_prep_dma_cyclic()
1638 static void sdma_add_scripts(struct sdma_engine *sdma, in sdma_add_scripts() argument
1642 s32 *saddr_arr = (u32 *)sdma->script_addrs; in sdma_add_scripts()
1646 if (!sdma->script_number) in sdma_add_scripts()
1647 sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; in sdma_add_scripts()
1649 for (i = 0; i < sdma->script_number; i++) in sdma_add_scripts()
1656 struct sdma_engine *sdma = context; in sdma_load_firmware() local
1662 dev_info(sdma->dev, "external firmware not found, using ROM firmware\n"); in sdma_load_firmware()
1678 sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1; in sdma_load_firmware()
1681 sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V2; in sdma_load_firmware()
1684 sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V3; in sdma_load_firmware()
1687 sdma->script_number = SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V4; in sdma_load_firmware()
1690 dev_err(sdma->dev, "unknown firmware version\n"); in sdma_load_firmware()
1697 clk_enable(sdma->clk_ipg); in sdma_load_firmware()
1698 clk_enable(sdma->clk_ahb); in sdma_load_firmware()
1700 sdma_load_script(sdma, ram_code, in sdma_load_firmware()
1703 clk_disable(sdma->clk_ipg); in sdma_load_firmware()
1704 clk_disable(sdma->clk_ahb); in sdma_load_firmware()
1706 sdma_add_scripts(sdma, addr); in sdma_load_firmware()
1708 dev_info(sdma->dev, "loaded firmware %d.%d\n", in sdma_load_firmware()
1718 static int sdma_event_remap(struct sdma_engine *sdma) in sdma_event_remap() argument
1720 struct device_node *np = sdma->dev->of_node; in sdma_event_remap()
1734 dev_dbg(sdma->dev, "no event needs to be remapped\n"); in sdma_event_remap()
1737 dev_err(sdma->dev, "the property %s must modulo %d\n", in sdma_event_remap()
1745 dev_err(sdma->dev, "failed to get gpr regmap\n"); in sdma_event_remap()
1753 dev_err(sdma->dev, "failed to read property %s index %d\n", in sdma_event_remap()
1760 dev_err(sdma->dev, "failed to read property %s index %d\n", in sdma_event_remap()
1767 dev_err(sdma->dev, "failed to read property %s index %d\n", in sdma_event_remap()
1782 static int sdma_get_firmware(struct sdma_engine *sdma, in sdma_get_firmware() argument
1788 FW_ACTION_HOTPLUG, fw_name, sdma->dev, in sdma_get_firmware()
1789 GFP_KERNEL, sdma, sdma_load_firmware); in sdma_get_firmware()
1794 static int sdma_init(struct sdma_engine *sdma) in sdma_init() argument
1799 ret = clk_enable(sdma->clk_ipg); in sdma_init()
1802 ret = clk_enable(sdma->clk_ahb); in sdma_init()
1807 writel_relaxed(0, sdma->regs + SDMA_H_C0PTR); in sdma_init()
1809 sdma->channel_control = dma_alloc_coherent(NULL, in sdma_init()
1814 if (!sdma->channel_control) { in sdma_init()
1819 sdma->context = (void *)sdma->channel_control + in sdma_init()
1821 sdma->context_phys = ccb_phys + in sdma_init()
1825 memset(sdma->channel_control, 0, in sdma_init()
1829 for (i = 0; i < sdma->drvdata->num_events; i++) in sdma_init()
1830 writel_relaxed(0, sdma->regs + chnenbl_ofs(sdma, i)); in sdma_init()
1834 writel_relaxed(0, sdma->regs + SDMA_CHNPRI_0 + i * 4); in sdma_init()
1836 ret = sdma_request_channel0(sdma); in sdma_init()
1840 sdma_config_ownership(&sdma->channel[0], false, true, false); in sdma_init()
1843 writel_relaxed(0x4050, sdma->regs + SDMA_CHN0ADDR); in sdma_init()
1847 writel_relaxed(0, sdma->regs + SDMA_H_CONFIG); in sdma_init()
1849 writel_relaxed(ccb_phys, sdma->regs + SDMA_H_C0PTR); in sdma_init()
1852 sdma_set_channel_priority(&sdma->channel[0], 7); in sdma_init()
1854 clk_disable(sdma->clk_ipg); in sdma_init()
1855 clk_disable(sdma->clk_ahb); in sdma_init()
1860 clk_disable(sdma->clk_ahb); in sdma_init()
1862 clk_disable(sdma->clk_ipg); in sdma_init()
1863 dev_err(sdma->dev, "initialisation failed with %d\n", ret); in sdma_init()
1884 struct sdma_engine *sdma = ofdma->of_dma_data; in sdma_xlate() local
1885 dma_cap_mask_t mask = sdma->dma_device.cap_mask; in sdma_xlate()
1919 struct sdma_engine *sdma; in sdma_probe() local
1937 sdma = devm_kzalloc(&pdev->dev, sizeof(*sdma), GFP_KERNEL); in sdma_probe()
1938 if (!sdma) in sdma_probe()
1941 spin_lock_init(&sdma->channel_0_lock); in sdma_probe()
1943 sdma->dev = &pdev->dev; in sdma_probe()
1944 sdma->drvdata = drvdata; in sdma_probe()
1951 sdma->regs = devm_ioremap_resource(&pdev->dev, iores); in sdma_probe()
1952 if (IS_ERR(sdma->regs)) in sdma_probe()
1953 return PTR_ERR(sdma->regs); in sdma_probe()
1955 sdma->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); in sdma_probe()
1956 if (IS_ERR(sdma->clk_ipg)) in sdma_probe()
1957 return PTR_ERR(sdma->clk_ipg); in sdma_probe()
1959 sdma->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); in sdma_probe()
1960 if (IS_ERR(sdma->clk_ahb)) in sdma_probe()
1961 return PTR_ERR(sdma->clk_ahb); in sdma_probe()
1963 ret = clk_prepare(sdma->clk_ipg); in sdma_probe()
1967 ret = clk_prepare(sdma->clk_ahb); in sdma_probe()
1972 sdma); in sdma_probe()
1976 sdma->irq = irq; in sdma_probe()
1978 sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL); in sdma_probe()
1979 if (!sdma->script_addrs) { in sdma_probe()
1985 saddr_arr = (s32 *)sdma->script_addrs; in sdma_probe()
1989 dma_cap_set(DMA_SLAVE, sdma->dma_device.cap_mask); in sdma_probe()
1990 dma_cap_set(DMA_CYCLIC, sdma->dma_device.cap_mask); in sdma_probe()
1991 dma_cap_set(DMA_MEMCPY, sdma->dma_device.cap_mask); in sdma_probe()
1993 INIT_LIST_HEAD(&sdma->dma_device.channels); in sdma_probe()
1996 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_probe()
1998 sdmac->sdma = sdma; in sdma_probe()
2008 vchan_init(&sdmac->vc, &sdma->dma_device); in sdma_probe()
2011 ret = sdma_init(sdma); in sdma_probe()
2015 ret = sdma_event_remap(sdma); in sdma_probe()
2019 if (sdma->drvdata->script_addrs) in sdma_probe()
2020 sdma_add_scripts(sdma, sdma->drvdata->script_addrs); in sdma_probe()
2022 sdma_add_scripts(sdma, pdata->script_addrs); in sdma_probe()
2025 ret = sdma_get_firmware(sdma, pdata->fw_name); in sdma_probe()
2039 ret = sdma_get_firmware(sdma, fw_name); in sdma_probe()
2045 sdma->dma_device.dev = &pdev->dev; in sdma_probe()
2047 sdma->dma_device.device_alloc_chan_resources = sdma_alloc_chan_resources; in sdma_probe()
2048 sdma->dma_device.device_free_chan_resources = sdma_free_chan_resources; in sdma_probe()
2049 sdma->dma_device.device_tx_status = sdma_tx_status; in sdma_probe()
2050 sdma->dma_device.device_prep_slave_sg = sdma_prep_slave_sg; in sdma_probe()
2051 sdma->dma_device.device_prep_dma_cyclic = sdma_prep_dma_cyclic; in sdma_probe()
2052 sdma->dma_device.device_config = sdma_config; in sdma_probe()
2053 sdma->dma_device.device_terminate_all = sdma_disable_channel_with_delay; in sdma_probe()
2054 sdma->dma_device.src_addr_widths = SDMA_DMA_BUSWIDTHS; in sdma_probe()
2055 sdma->dma_device.dst_addr_widths = SDMA_DMA_BUSWIDTHS; in sdma_probe()
2056 sdma->dma_device.directions = SDMA_DMA_DIRECTIONS; in sdma_probe()
2057 sdma->dma_device.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; in sdma_probe()
2058 sdma->dma_device.device_prep_dma_memcpy = sdma_prep_memcpy; in sdma_probe()
2059 sdma->dma_device.device_issue_pending = sdma_issue_pending; in sdma_probe()
2060 sdma->dma_device.dev->dma_parms = &sdma->dma_parms; in sdma_probe()
2061 dma_set_max_seg_size(sdma->dma_device.dev, SDMA_BD_MAX_CNT); in sdma_probe()
2063 platform_set_drvdata(pdev, sdma); in sdma_probe()
2065 ret = dma_async_device_register(&sdma->dma_device); in sdma_probe()
2072 ret = of_dma_controller_register(np, sdma_xlate, sdma); in sdma_probe()
2081 sdma->spba_start_addr = spba_res.start; in sdma_probe()
2082 sdma->spba_end_addr = spba_res.end; in sdma_probe()
2090 dma_async_device_unregister(&sdma->dma_device); in sdma_probe()
2092 kfree(sdma->script_addrs); in sdma_probe()
2094 clk_unprepare(sdma->clk_ahb); in sdma_probe()
2096 clk_unprepare(sdma->clk_ipg); in sdma_probe()
2102 struct sdma_engine *sdma = platform_get_drvdata(pdev); in sdma_remove() local
2105 devm_free_irq(&pdev->dev, sdma->irq, sdma); in sdma_remove()
2106 dma_async_device_unregister(&sdma->dma_device); in sdma_remove()
2107 kfree(sdma->script_addrs); in sdma_remove()
2108 clk_unprepare(sdma->clk_ahb); in sdma_remove()
2109 clk_unprepare(sdma->clk_ipg); in sdma_remove()
2112 struct sdma_channel *sdmac = &sdma->channel[i]; in sdma_remove()