diff options
| author | Alex Elder <elder@linaro.org> | 2023-02-15 22:53:51 +0300 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-02-20 10:14:20 +0300 |
| commit | 37cd29ec84016297e5b834345dd272a7d3bd8fae (patch) | |
| tree | a8c39c123765e360c2ea263202f0be191b20edc7 /drivers/net/ipa | |
| parent | 62747512ebe6cd292e280aa7dc1dd37d36dcb637 (diff) | |
| download | linux-37cd29ec84016297e5b834345dd272a7d3bd8fae.tar.xz | |
net: ipa: support different event ring encoding
Starting with IPA v5.0, a channel's event ring index is encoded in
a field in the CH_C_CNTXT_1 GSI register rather than CH_C_CNTXT_0.
Define a new field ID for the former register and encode the event
ring in the appropriate register.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ipa')
| -rw-r--r-- | drivers/net/ipa/gsi.c | 5 | ||||
| -rw-r--r-- | drivers/net/ipa/gsi_reg.h | 3 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c index 88279956194a..f128d5bd6956 100644 --- a/drivers/net/ipa/gsi.c +++ b/drivers/net/ipa/gsi.c @@ -840,12 +840,15 @@ static void gsi_channel_program(struct gsi_channel *channel, bool doorbell) val = ch_c_cntxt_0_type_encode(gsi->version, reg, GSI_CHANNEL_TYPE_GPI); if (channel->toward_ipa) val |= reg_bit(reg, CHTYPE_DIR); - val |= reg_encode(reg, ERINDEX, channel->evt_ring_id); + if (gsi->version < IPA_VERSION_5_0) + val |= reg_encode(reg, ERINDEX, channel->evt_ring_id); val |= reg_encode(reg, ELEMENT_SIZE, GSI_RING_ELEMENT_SIZE); iowrite32(val, gsi->virt + reg_n_offset(reg, channel_id)); reg = gsi_reg(gsi, CH_C_CNTXT_1); val = reg_encode(reg, CH_R_LENGTH, size); + if (gsi->version >= IPA_VERSION_5_0) + val |= reg_encode(reg, CH_ERINDEX, channel->evt_ring_id); iowrite32(val, gsi->virt + reg_n_offset(reg, channel_id)); /* The context 2 and 3 registers store the low-order and diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h index 52520cd44c3e..2a19d9e34a10 100644 --- a/drivers/net/ipa/gsi_reg.h +++ b/drivers/net/ipa/gsi_reg.h @@ -102,7 +102,7 @@ enum gsi_reg_ch_c_cntxt_0_field_id { CH_EE, CHID, CHTYPE_PROTOCOL_MSB, /* IPA v4.5-4.11 */ - ERINDEX, + ERINDEX, /* Not IPA v5.0+ */ CHSTATE, ELEMENT_SIZE, }; @@ -124,6 +124,7 @@ enum gsi_channel_type { /* CH_C_CNTXT_1 register */ enum gsi_reg_ch_c_cntxt_1_field_id { CH_R_LENGTH, + CH_ERINDEX, /* IPA v5.0+ */ }; /* CH_C_QOS register */ |