diff options
| author |   Alex Elder <elder@linaro.org> | 2023-02-10 13:36:49 -0600 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2023-02-13 09:56:16 +0000 |
| commit | 8f0fece65d9e6c7254cb030487cd5789af36caff (patch) | |
| tree | f60bbb4924959e33e177b94a4ade60b6423a1f91 /drivers | |
| parent | net: ipa: introduce gsi_reg_init() (diff) | |
| download | wireguard-linux-8f0fece65d9e6c7254cb030487cd5789af36caff.tar.xz wireguard-linux-8f0fece65d9e6c7254cb030487cd5789af36caff.zip | |
net: ipa: introduce GSI register IDs
Create a new gsi_reg_id enumerated type, which identifies each GSI
register with a symbolic identifier.
Create a function that indicates whether a register ID is valid.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ipa/gsi_reg.c | 65 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi_reg.h | 57 |
2 files changed, 122 insertions, 0 deletions
diff --git a/drivers/net/ipa/gsi_reg.c b/drivers/net/ipa/gsi_reg.c index 48f81fc24f39..c20b3bcdd415 100644 --- a/drivers/net/ipa/gsi_reg.c +++ b/drivers/net/ipa/gsi_reg.c @@ -22,6 +22,69 @@ */ #define GSI_EE_REG_ADJUST 0x0000d000 /* IPA v4.5+ */ +/* Is this register ID valid for the current GSI version? */ +static bool gsi_reg_id_valid(struct gsi *gsi, enum gsi_reg_id reg_id) +{ + switch (reg_id) { + case INTER_EE_SRC_CH_IRQ_MSK: + case INTER_EE_SRC_EV_CH_IRQ_MSK: + case CH_C_CNTXT_0: + case CH_C_CNTXT_1: + case CH_C_CNTXT_2: + case CH_C_CNTXT_3: + case CH_C_QOS: + case CH_C_SCRATCH_0: + case CH_C_SCRATCH_1: + case CH_C_SCRATCH_2: + case CH_C_SCRATCH_3: + case EV_CH_E_CNTXT_0: + case EV_CH_E_CNTXT_1: + case EV_CH_E_CNTXT_2: + case EV_CH_E_CNTXT_3: + case EV_CH_E_CNTXT_4: + case EV_CH_E_CNTXT_8: + case EV_CH_E_CNTXT_9: + case EV_CH_E_CNTXT_10: + case EV_CH_E_CNTXT_11: + case EV_CH_E_CNTXT_12: + case EV_CH_E_CNTXT_13: + case EV_CH_E_SCRATCH_0: + case EV_CH_E_SCRATCH_1: + case CH_C_DOORBELL_0: + case EV_CH_E_DOORBELL_0: + case GSI_STATUS: + case CH_CMD: + case EV_CH_CMD: + case GENERIC_CMD: + case HW_PARAM_2: + case CNTXT_TYPE_IRQ: + case CNTXT_TYPE_IRQ_MSK: + case CNTXT_SRC_CH_IRQ: + case CNTXT_SRC_CH_IRQ_MSK: + case CNTXT_SRC_CH_IRQ_CLR: + case CNTXT_SRC_EV_CH_IRQ: + case CNTXT_SRC_EV_CH_IRQ_MSK: + case CNTXT_SRC_EV_CH_IRQ_CLR: + case CNTXT_SRC_IEOB_IRQ: + case CNTXT_SRC_IEOB_IRQ_MSK: + case CNTXT_SRC_IEOB_IRQ_CLR: + case CNTXT_GLOB_IRQ_STTS: + case CNTXT_GLOB_IRQ_EN: + case CNTXT_GLOB_IRQ_CLR: + case CNTXT_GSI_IRQ_STTS: + case CNTXT_GSI_IRQ_EN: + case CNTXT_GSI_IRQ_CLR: + case CNTXT_INTSET: + case ERROR_LOG: + case ERROR_LOG_CLR: + case CNTXT_SCRATCH_0: + return true; + + default: + return false; + } +} + /* Sets gsi->virt_raw and gsi->virt, and I/O maps the "gsi" memory range */ int gsi_reg_init(struct gsi *gsi, struct platform_device *pdev) { @@ -30,6 +93,8 @@ int gsi_reg_init(struct gsi *gsi, struct platform_device *pdev) resource_size_t size; u32 adjust; + (void)gsi_reg_id_valid; /* Avoid a warning */ + /* Get GSI memory range and map it */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gsi"); if (!res) { diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h index 60071b6a4d32..1f613cd677b0 100644 --- a/drivers/net/ipa/gsi_reg.h +++ b/drivers/net/ipa/gsi_reg.h @@ -38,6 +38,63 @@ * (though the actual limit is hardware-dependent). */ +/* enum gsi_reg_id - GSI register IDs */ +enum gsi_reg_id { + INTER_EE_SRC_CH_IRQ_MSK, /* IPA v3.5+ */ + INTER_EE_SRC_EV_CH_IRQ_MSK, /* IPA v3.5+ */ + CH_C_CNTXT_0, + CH_C_CNTXT_1, + CH_C_CNTXT_2, + CH_C_CNTXT_3, + CH_C_QOS, + CH_C_SCRATCH_0, + CH_C_SCRATCH_1, + CH_C_SCRATCH_2, + CH_C_SCRATCH_3, + EV_CH_E_CNTXT_0, + EV_CH_E_CNTXT_1, + EV_CH_E_CNTXT_2, + EV_CH_E_CNTXT_3, + EV_CH_E_CNTXT_4, + EV_CH_E_CNTXT_8, + EV_CH_E_CNTXT_9, + EV_CH_E_CNTXT_10, + EV_CH_E_CNTXT_11, + EV_CH_E_CNTXT_12, + EV_CH_E_CNTXT_13, + EV_CH_E_SCRATCH_0, + EV_CH_E_SCRATCH_1, + CH_C_DOORBELL_0, + EV_CH_E_DOORBELL_0, + GSI_STATUS, + CH_CMD, + EV_CH_CMD, + GENERIC_CMD, + HW_PARAM_2, /* IPA v3.5.1+ */ + CNTXT_TYPE_IRQ, + CNTXT_TYPE_IRQ_MSK, + CNTXT_SRC_CH_IRQ, + CNTXT_SRC_CH_IRQ_MSK, + CNTXT_SRC_CH_IRQ_CLR, + CNTXT_SRC_EV_CH_IRQ, + CNTXT_SRC_EV_CH_IRQ_MSK, + CNTXT_SRC_EV_CH_IRQ_CLR, + CNTXT_SRC_IEOB_IRQ, + CNTXT_SRC_IEOB_IRQ_MSK, + CNTXT_SRC_IEOB_IRQ_CLR, + CNTXT_GLOB_IRQ_STTS, + CNTXT_GLOB_IRQ_EN, + CNTXT_GLOB_IRQ_CLR, + CNTXT_GSI_IRQ_STTS, + CNTXT_GSI_IRQ_EN, + CNTXT_GSI_IRQ_CLR, + CNTXT_INTSET, + ERROR_LOG, + ERROR_LOG_CLR, + CNTXT_SCRATCH_0, + GSI_REG_ID_COUNT, /* Last; not an ID */ +}; + /* The inter-EE IRQ registers are relative to gsi->virt_raw (IPA v3.5+) */ #define GSI_INTER_EE_SRC_CH_IRQ_MSK_OFFSET \ |