diff options
| -rw-r--r-- | drivers/net/ipa/gsi.c | 35 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi_reg.h | 1 |
2 files changed, 27 insertions, 9 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 2c01a04e07b7..4ab1d89f642e 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -257,6 +257,7 @@ static void gsi_irq_setup(struct gsi *gsi) iowrite32(0, gsi->virt + GSI_CNTXT_SRC_CH_IRQ_MSK_OFFSET); iowrite32(0, gsi->virt + GSI_CNTXT_SRC_EV_CH_IRQ_MSK_OFFSET); + iowrite32(0, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); } /* Turn off all GSI interrupts when we're all done */ @@ -289,14 +290,16 @@ static void gsi_irq_enable(struct gsi *gsi) { u32 val; + /* Global interrupts include hardware error reports. Enable + * that so we can at least report the error should it occur. + */ + iowrite32(ERROR_INT_FMASK, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); + gsi->type_enabled_bitmap |= BIT(GSI_GLOB_EE); + /* Each IEOB interrupt is enabled (later) as needed by channels */ iowrite32(0, gsi->virt + GSI_CNTXT_SRC_IEOB_IRQ_MSK_OFFSET); gsi->type_enabled_bitmap |= BIT(GSI_IEOB); - val = GSI_CNTXT_GLOB_IRQ_ALL; - iowrite32(val, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); - gsi->type_enabled_bitmap |= BIT(GSI_GLOB_EE); - /* We don't use inter-EE channel or event interrupts */ /* Never enable GSI_BREAK_POINT */ @@ -315,8 +318,8 @@ static void gsi_irq_disable(struct gsi *gsi) gsi_irq_type_update(gsi); iowrite32(0, gsi->virt + GSI_CNTXT_GSI_IRQ_EN_OFFSET); - iowrite32(0, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); iowrite32(0, gsi->virt + GSI_CNTXT_SRC_IEOB_IRQ_MSK_OFFSET); + iowrite32(0, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); } /* Return the virtual address associated with a ring index */ @@ -1101,8 +1104,8 @@ static void gsi_isr_glob_err(struct gsi *gsi) iowrite32(~0, gsi->virt + GSI_ERROR_LOG_CLR_OFFSET); ee = u32_get_bits(val, ERR_EE_FMASK); - which = u32_get_bits(val, ERR_VIRT_IDX_FMASK); type = u32_get_bits(val, ERR_TYPE_FMASK); + which = u32_get_bits(val, ERR_VIRT_IDX_FMASK); code = u32_get_bits(val, ERR_CODE_FMASK); if (type == GSI_ERR_TYPE_CHAN) @@ -1606,8 +1609,19 @@ static int gsi_generic_command(struct gsi *gsi, u32 channel_id, enum gsi_generic_cmd_opcode opcode) { struct completion *completion = &gsi->completion; + bool success; u32 val; + /* The error global interrupt type is always enabled (until we + * teardown), so we won't change that. A generic EE command + * completes with a GSI global interrupt of type GP_INT1. We + * only perform one generic command at a time (to allocate or + * halt a modem channel) and only from this function. So we + * enable the GP_INT1 IRQ type here while we're expecting it. + */ + val = ERROR_INT_FMASK | GP_INT1_FMASK; + iowrite32(val, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); + /* First zero the result code field */ val = ioread32(gsi->virt + GSI_CNTXT_SCRATCH_0_OFFSET); val &= ~GENERIC_EE_RESULT_FMASK; @@ -1618,8 +1632,13 @@ static int gsi_generic_command(struct gsi *gsi, u32 channel_id, val |= u32_encode_bits(channel_id, GENERIC_CHID_FMASK); val |= u32_encode_bits(GSI_EE_MODEM, GENERIC_EE_FMASK); - if (gsi_command(gsi, GSI_GENERIC_CMD_OFFSET, val, completion)) - return 0; /* Success! */ + success = gsi_command(gsi, GSI_GENERIC_CMD_OFFSET, val, completion); + + /* Disable the GP_INT1 IRQ type again */ + iowrite32(ERROR_INT_FMASK, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET); + + if (success) + return 0; dev_err(gsi->dev, "GSI generic command %u to channel %u timed out\n", opcode, channel_id); diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h index 1dd81cf0b46a..ae00aff1cfa5 100644 --- a/drivers/net/ipa/gsi_reg.h +++ b/drivers/net/ipa/gsi_reg.h @@ -335,7 +335,6 @@ enum gsi_irq_type_id { #define GP_INT1_FMASK GENMASK(1, 1) #define GP_INT2_FMASK GENMASK(2, 2) #define GP_INT3_FMASK GENMASK(3, 3) -#define GSI_CNTXT_GLOB_IRQ_ALL GENMASK(3, 0) #define GSI_CNTXT_GSI_IRQ_STTS_OFFSET \ GSI_EE_N_CNTXT_GSI_IRQ_STTS_OFFSET(GSI_EE_AP) |