diff options
| -rw-r--r-- | drivers/net/ipa/gsi.c | 35 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi.h | 1 |
2 files changed, 24 insertions, 12 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 669d7496f8bd..f76b5a1e1f8d 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -230,16 +230,25 @@ static u32 gsi_channel_id(struct gsi_channel *channel) return channel - &channel->gsi->channel[0]; } +/* Update the GSI IRQ type register with the cached value */ +static void gsi_irq_type_update(struct gsi *gsi) +{ + iowrite32(gsi->type_enabled_bitmap, + gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); +} + /* Turn off all GSI interrupts initially */ static void gsi_irq_setup(struct gsi *gsi) { - iowrite32(0, gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); + gsi->type_enabled_bitmap = 0; + gsi_irq_type_update(gsi); } /* Turn off all GSI interrupts when we're all done */ static void gsi_irq_teardown(struct gsi *gsi) { - iowrite32(0, gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); + gsi->type_enabled_bitmap = 0; + gsi_irq_type_update(gsi); } static void gsi_irq_ieob_enable(struct gsi *gsi, u32 evt_ring_id) @@ -267,34 +276,36 @@ static void gsi_irq_enable(struct gsi *gsi) val = GENMASK(gsi->channel_count - 1, 0); iowrite32(val, gsi->virt + GSI_CNTXT_SRC_CH_IRQ_MSK_OFFSET); + gsi->type_enabled_bitmap |= BIT(GSI_CH_CTRL); val = GENMASK(gsi->evt_ring_count - 1, 0); iowrite32(val, gsi->virt + GSI_CNTXT_SRC_EV_CH_IRQ_MSK_OFFSET); + gsi->type_enabled_bitmap |= BIT(GSI_EV_CTRL); /* 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 */ val = GSI_CNTXT_GSI_IRQ_ALL & ~BREAK_POINT_FMASK; iowrite32(val, gsi->virt + GSI_CNTXT_GSI_IRQ_EN_OFFSET); + gsi->type_enabled_bitmap |= BIT(GSI_GENERAL); - /* Finally enable the interrupt types we use */ - val = BIT(GSI_CH_CTRL); - val |= BIT(GSI_EV_CTRL); - val |= BIT(GSI_GLOB_EE); - val |= BIT(GSI_IEOB); - /* We don't use inter-EE channel or event interrupts */ - val |= BIT(GSI_GENERAL); - iowrite32(val, gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); + /* Finally update the interrupt types we want enabled */ + gsi_irq_type_update(gsi); } -/* Disable all GSI_interrupt types */ +/* Disable all GSI interrupt types */ static void gsi_irq_disable(struct gsi *gsi) { - iowrite32(0, gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); + gsi->type_enabled_bitmap = 0; + 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); diff --git a/drivers/net/ipa/gsi.h b/drivers/net/ipa/gsi.h index fa7e2d35c19c..758125737c8e 100644 --- a/drivers/net/ipa/gsi.h +++ b/drivers/net/ipa/gsi.h @@ -158,6 +158,7 @@ struct gsi { struct gsi_evt_ring evt_ring[GSI_EVT_RING_COUNT_MAX]; u32 event_bitmap; /* allocated event rings */ u32 modem_channel_bitmap; /* modem channels to allocate */ + u32 type_enabled_bitmap; /* GSI IRQ types enabled */ u32 ieob_enabled_bitmap; /* IEOB IRQ enabled (event rings) */ struct completion completion; /* for global EE commands */ struct mutex mutex; /* protects commands, programming */ |