diff options
| author | Alex Elder <elder@linaro.org> | 2020-11-05 12:13:58 -0600 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-07 15:39:16 -0800 |
| commit | f9b28804ab50eb951c50f4c5afec77ab0435309a (patch) | |
| tree | 295c3e6af169defb43580af967c964b7b82d1904 /drivers | |
| parent | a054539db1966908d3730f29ef3726534cd1f2d5 (diff) | |
| download | linux-stable-f9b28804ab50eb951c50f4c5afec77ab0435309a.tar.gz linux-stable-f9b28804ab50eb951c50f4c5afec77ab0435309a.tar.bz2 linux-stable-f9b28804ab50eb951c50f4c5afec77ab0435309a.zip | |
net: ipa: define GSI interrupt types with an enum
Define the GSI interrupt types with an enumerated type whose values
are the bit positions representing each interrupt type. Include a
short comment describing how each interrupt type is used.
Build up the enabled interrupt mask explicitly in gsi_irq_enable(),
and get rid of the definition of GSI_CNTXT_TYPE_IRQ_MSK_ALL.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ipa/gsi.c | 21 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi_reg.h | 19 |
2 files changed, 22 insertions, 18 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index ea1126a827a1..da5204268df2 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -253,10 +253,12 @@ static void gsi_irq_enable(struct gsi *gsi) { u32 val; - /* We don't use inter-EE channel or event interrupts */ - val = GSI_CNTXT_TYPE_IRQ_MSK_ALL; - val &= ~INTER_EE_CH_CTRL_FMASK; - val &= ~INTER_EE_EV_CTRL_FMASK; + 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 control interrupts */ + val |= BIT(GSI_GENERAL); iowrite32(val, gsi->virt + GSI_CNTXT_TYPE_IRQ_MSK_OFFSET); val = GENMASK(gsi->channel_count - 1, 0); @@ -1130,6 +1132,7 @@ static irqreturn_t gsi_isr(int irq, void *dev_id) u32 intr_mask; u32 cnt = 0; + /* enum gsi_irq_type_id defines GSI interrupt types */ while ((intr_mask = ioread32(gsi->virt + GSI_CNTXT_TYPE_IRQ_OFFSET))) { /* intr_mask contains bitmask of pending GSI interrupts */ do { @@ -1138,19 +1141,19 @@ static irqreturn_t gsi_isr(int irq, void *dev_id) intr_mask ^= gsi_intr; switch (gsi_intr) { - case CH_CTRL_FMASK: + case BIT(GSI_CH_CTRL): gsi_isr_chan_ctrl(gsi); break; - case EV_CTRL_FMASK: + case BIT(GSI_EV_CTRL): gsi_isr_evt_ctrl(gsi); break; - case GLOB_EE_FMASK: + case BIT(GSI_GLOB_EE): gsi_isr_glob_ee(gsi); break; - case IEOB_FMASK: + case BIT(GSI_IEOB): gsi_isr_ieob(gsi); break; - case GENERAL_FMASK: + case BIT(GSI_GENERAL): gsi_isr_general(gsi); break; default: diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h index 9668797aa58e..1dd81cf0b46a 100644 --- a/drivers/net/ipa/gsi_reg.h +++ b/drivers/net/ipa/gsi_reg.h @@ -262,15 +262,16 @@ GSI_EE_N_CNTXT_TYPE_IRQ_MSK_OFFSET(GSI_EE_AP) #define GSI_EE_N_CNTXT_TYPE_IRQ_MSK_OFFSET(ee) \ (0x0001f088 + 0x4000 * (ee)) -/* The masks below are used for the TYPE_IRQ and TYPE_IRQ_MASK registers */ -#define CH_CTRL_FMASK GENMASK(0, 0) -#define EV_CTRL_FMASK GENMASK(1, 1) -#define GLOB_EE_FMASK GENMASK(2, 2) -#define IEOB_FMASK GENMASK(3, 3) -#define INTER_EE_CH_CTRL_FMASK GENMASK(4, 4) -#define INTER_EE_EV_CTRL_FMASK GENMASK(5, 5) -#define GENERAL_FMASK GENMASK(6, 6) -#define GSI_CNTXT_TYPE_IRQ_MSK_ALL GENMASK(6, 0) +/* Values here are bit positions in the TYPE_IRQ and TYPE_IRQ_MSK registers */ +enum gsi_irq_type_id { + GSI_CH_CTRL = 0, /* channel allocation, etc. */ + GSI_EV_CTRL = 1, /* event ring allocation, etc. */ + GSI_GLOB_EE = 2, /* global/general event */ + GSI_IEOB = 3, /* TRE completion */ + GSI_INTER_EE_CH_CTRL = 4, /* remote-issued stop/reset (unused) */ + GSI_INTER_EE_EV_CTRL = 5, /* remote-issued event reset (unused) */ + GSI_GENERAL = 6, /* general-purpose event */ +}; #define GSI_CNTXT_SRC_CH_IRQ_OFFSET \ GSI_EE_N_CNTXT_SRC_CH_IRQ_OFFSET(GSI_EE_AP) |