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path: root/drivers/accel/qaic/mhi_controller.c
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Diffstat (limited to 'drivers/accel/qaic/mhi_controller.c')
-rw-r--r--drivers/accel/qaic/mhi_controller.c453
1 files changed, 433 insertions, 20 deletions
diff --git a/drivers/accel/qaic/mhi_controller.c b/drivers/accel/qaic/mhi_controller.c
index 5036e58e7235..13a14c6c6168 100644
--- a/drivers/accel/qaic/mhi_controller.c
+++ b/drivers/accel/qaic/mhi_controller.c
@@ -20,7 +20,12 @@ static unsigned int mhi_timeout_ms = 2000; /* 2 sec default */
module_param(mhi_timeout_ms, uint, 0600);
MODULE_PARM_DESC(mhi_timeout_ms, "MHI controller timeout value");
-static struct mhi_channel_config aic100_channels[] = {
+static const char *fw_image_paths[FAMILY_MAX] = {
+ [FAMILY_AIC100] = "qcom/aic100/sbl.bin",
+ [FAMILY_AIC200] = "qcom/aic200/sbl.bin",
+};
+
+static const struct mhi_channel_config aic100_channels[] = {
{
.name = "QAIC_LOOPBACK",
.num = 0,
@@ -348,7 +353,7 @@ static struct mhi_channel_config aic100_channels[] = {
.local_elements = 0,
.event_ring = 0,
.dir = DMA_TO_DEVICE,
- .ee_mask = MHI_CH_EE_SBL | MHI_CH_EE_AMSS,
+ .ee_mask = MHI_CH_EE_SBL,
.pollcfg = 0,
.doorbell = MHI_DB_BRST_DISABLE,
.lpm_notify = false,
@@ -358,13 +363,272 @@ static struct mhi_channel_config aic100_channels[] = {
.wake_capable = false,
},
{
- .num = 21,
.name = "QAIC_TIMESYNC",
+ .num = 21,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_SBL,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_TIMESYNC_PERIODIC",
+ .num = 22,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_TIMESYNC_PERIODIC",
+ .num = 23,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "IPCR",
+ .num = 24,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "IPCR",
+ .num = 25,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = true,
+ .wake_capable = false,
+ },
+};
+
+static const struct mhi_channel_config aic200_channels[] = {
+ {
+ .name = "QAIC_LOOPBACK",
+ .num = 0,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_LOOPBACK",
+ .num = 1,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_SAHARA",
+ .num = 2,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_SBL,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_SAHARA",
+ .num = 3,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_SBL,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_SSR",
+ .num = 6,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_SSR",
+ .num = 7,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_CONTROL",
+ .num = 10,
+ .num_elements = 128,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_CONTROL",
+ .num = 11,
+ .num_elements = 128,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_LOGGING",
+ .num = 12,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_SBL,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_LOGGING",
+ .num = 13,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_SBL,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_STATUS",
+ .num = 14,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_STATUS",
+ .num = 15,
.num_elements = 32,
.local_elements = 0,
.event_ring = 0,
.dir = DMA_FROM_DEVICE,
- .ee_mask = MHI_CH_EE_SBL | MHI_CH_EE_AMSS,
+ .ee_mask = MHI_CH_EE_AMSS,
.pollcfg = 0,
.doorbell = MHI_DB_BRST_DISABLE,
.lpm_notify = false,
@@ -373,6 +637,102 @@ static struct mhi_channel_config aic100_channels[] = {
.auto_queue = false,
.wake_capable = false,
},
+ {
+ .name = "QAIC_TELEMETRY",
+ .num = 16,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_TELEMETRY",
+ .num = 17,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_TIMESYNC_PERIODIC",
+ .num = 22,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "QAIC_TIMESYNC_PERIODIC",
+ .num = 23,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "IPCR",
+ .num = 24,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_TO_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = false,
+ .wake_capable = false,
+ },
+ {
+ .name = "IPCR",
+ .num = 25,
+ .num_elements = 32,
+ .local_elements = 0,
+ .event_ring = 0,
+ .dir = DMA_FROM_DEVICE,
+ .ee_mask = MHI_CH_EE_AMSS,
+ .pollcfg = 0,
+ .doorbell = MHI_DB_BRST_DISABLE,
+ .lpm_notify = false,
+ .offload_channel = false,
+ .doorbell_mode_switch = false,
+ .auto_queue = true,
+ .wake_capable = false,
+ },
};
static struct mhi_event_config aic100_events[] = {
@@ -390,22 +750,63 @@ static struct mhi_event_config aic100_events[] = {
},
};
-static struct mhi_controller_config aic100_config = {
- .max_channels = 128,
- .timeout_ms = 0, /* controlled by mhi_timeout */
- .buf_len = 0,
- .num_channels = ARRAY_SIZE(aic100_channels),
- .ch_cfg = aic100_channels,
- .num_events = ARRAY_SIZE(aic100_events),
- .event_cfg = aic100_events,
- .use_bounce_buf = false,
- .m2_no_db = false,
+static struct mhi_event_config aic200_events[] = {
+ {
+ .num_elements = 32,
+ .irq_moderation_ms = 0,
+ .irq = 0,
+ .channel = U32_MAX,
+ .priority = 1,
+ .mode = MHI_DB_BRST_DISABLE,
+ .data_type = MHI_ER_CTRL,
+ .hardware_event = false,
+ .client_managed = false,
+ .offload_channel = false,
+ },
+};
+
+static struct mhi_controller_config mhi_cntrl_configs[] = {
+ [FAMILY_AIC100] = {
+ .max_channels = 128,
+ .timeout_ms = 0, /* controlled by mhi_timeout */
+ .buf_len = 0,
+ .num_channels = ARRAY_SIZE(aic100_channels),
+ .ch_cfg = aic100_channels,
+ .num_events = ARRAY_SIZE(aic100_events),
+ .event_cfg = aic100_events,
+ .use_bounce_buf = false,
+ .m2_no_db = false,
+ },
+ [FAMILY_AIC200] = {
+ .max_channels = 128,
+ .timeout_ms = 0, /* controlled by mhi_timeout */
+ .buf_len = 0,
+ .num_channels = ARRAY_SIZE(aic200_channels),
+ .ch_cfg = aic200_channels,
+ .num_events = ARRAY_SIZE(aic200_events),
+ .event_cfg = aic200_events,
+ .use_bounce_buf = false,
+ .m2_no_db = false,
+ },
};
static int mhi_read_reg(struct mhi_controller *mhi_cntrl, void __iomem *addr, u32 *out)
{
- u32 tmp = readl_relaxed(addr);
+ u32 tmp;
+ /*
+ * SOC_HW_VERSION quirk
+ * The SOC_HW_VERSION register (offset 0x224) is not reliable and
+ * may contain uninitialized values, including 0xFFFFFFFF. This could
+ * cause a false positive link down error. Instead, intercept any
+ * reads and provide the correct value of the register.
+ */
+ if (addr - mhi_cntrl->regs == 0x224) {
+ *out = 0x60110200;
+ return 0;
+ }
+
+ tmp = readl_relaxed(addr);
if (tmp == U32_MAX)
return -EIO;
@@ -437,7 +838,7 @@ static void mhi_status_cb(struct mhi_controller *mhi_cntrl, enum mhi_callback re
pci_err(qdev->pdev, "Fatal error received from device. Attempting to recover\n");
/* this event occurs in non-atomic context */
if (reason == MHI_CB_SYS_ERROR)
- qaic_dev_reset_clean_local_state(qdev, true);
+ qaic_dev_reset_clean_local_state(qdev);
}
static int mhi_reset_and_async_power_up(struct mhi_controller *mhi_cntrl)
@@ -468,8 +869,9 @@ static int mhi_reset_and_async_power_up(struct mhi_controller *mhi_cntrl)
}
struct mhi_controller *qaic_mhi_register_controller(struct pci_dev *pci_dev, void __iomem *mhi_bar,
- int mhi_irq)
+ int mhi_irq, bool shared_msi, int family)
{
+ struct mhi_controller_config mhi_config = mhi_cntrl_configs[family];
struct mhi_controller *mhi_cntrl;
int ret;
@@ -500,11 +902,22 @@ struct mhi_controller *qaic_mhi_register_controller(struct pci_dev *pci_dev, voi
return ERR_PTR(-ENOMEM);
mhi_cntrl->irq[0] = mhi_irq;
- mhi_cntrl->fw_image = "qcom/aic100/sbl.bin";
+
+ if (shared_msi) /* MSI shared with data path, no IRQF_NO_SUSPEND */
+ mhi_cntrl->irq_flags = IRQF_SHARED;
+
+ mhi_cntrl->fw_image = fw_image_paths[family];
+
+ if (family == FAMILY_AIC200) {
+ mhi_cntrl->name = "AIC200";
+ mhi_cntrl->seg_len = SZ_512K;
+ } else {
+ mhi_cntrl->name = "AIC100";
+ }
/* use latest configured timeout */
- aic100_config.timeout_ms = mhi_timeout_ms;
- ret = mhi_register_controller(mhi_cntrl, &aic100_config);
+ mhi_config.timeout_ms = mhi_timeout_ms;
+ ret = mhi_register_controller(mhi_cntrl, &mhi_config);
if (ret) {
pci_err(pci_dev, "mhi_register_controller failed %d\n", ret);
return ERR_PTR(ret);
generated by cgit (git 2.34.1) at 2025-12-25 05:48:17 +0000