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Date: Mon, 13 Feb 2023 10:22:27 -0600
From: Alex Elder <elder@...aro.org>
To: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
pabeni@...hat.com
Cc: caleb.connolly@...aro.org, mka@...omium.org, evgreen@...omium.org,
andersson@...nel.org, quic_cpratapa@...cinc.com,
quic_avuyyuru@...cinc.com, quic_jponduru@...cinc.com,
quic_subashab@...cinc.com, elder@...nel.org,
netdev@...r.kernel.org, linux-arm-msm@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH net-next 4/6] net: ipa: define fields for event-ring related registers
Define field IDs for the EV_CH_E_CNTXT_0 and EV_CH_E_CNTXT_8 GSI
registers, and populate the register definition files accordingly.
Use the reg_*() functions to access field values for those regiters,
and get rid of the previous field definition constants.
The remaining EV_CH_E_CNTXT_* registers are written with full 32-bit
values (and have no fields).
Signed-off-by: Alex Elder <elder@...aro.org>
---
drivers/net/ipa/gsi.c | 19 +++++++++----------
drivers/net/ipa/gsi_reg.h | 23 +++++++++++++----------
drivers/net/ipa/reg/gsi_reg-v3.1.c | 24 ++++++++++++++++++++----
drivers/net/ipa/reg/gsi_reg-v3.5.1.c | 24 ++++++++++++++++++++----
drivers/net/ipa/reg/gsi_reg-v4.0.c | 24 ++++++++++++++++++++----
drivers/net/ipa/reg/gsi_reg-v4.5.c | 24 ++++++++++++++++++++----
drivers/net/ipa/reg/gsi_reg-v4.9.c | 24 ++++++++++++++++++++----
7 files changed, 122 insertions(+), 40 deletions(-)
diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index ff00c833043a9..7c4e458364236 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -163,9 +163,6 @@ static void gsi_validate_build(void)
* ensure the elements themselves meet the requirement.
*/
BUILD_BUG_ON(!is_power_of_2(GSI_RING_ELEMENT_SIZE));
-
- /* The event ring element size must fit in this field */
- BUILD_BUG_ON(GSI_RING_ELEMENT_SIZE > field_max(EV_ELEMENT_SIZE_FMASK));
}
/* Return the channel id associated with a given channel */
@@ -418,7 +415,7 @@ gsi_evt_ring_state(struct gsi *gsi, u32 evt_ring_id)
val = ioread32(gsi->virt + reg_n_offset(reg, evt_ring_id));
- return u32_get_bits(val, EV_CHSTATE_FMASK);
+ return reg_decode(reg, EV_CHSTATE, val);
}
/* Issue an event ring command and wait for it to complete */
@@ -739,9 +736,10 @@ static void gsi_evt_ring_program(struct gsi *gsi, u32 evt_ring_id)
reg = gsi_reg(gsi, EV_CH_E_CNTXT_0);
/* We program all event rings as GPI type/protocol */
- val = u32_encode_bits(GSI_CHANNEL_TYPE_GPI, EV_CHTYPE_FMASK);
- val |= EV_INTYPE_FMASK;
- val |= u32_encode_bits(GSI_RING_ELEMENT_SIZE, EV_ELEMENT_SIZE_FMASK);
+ val = reg_encode(reg, EV_CHTYPE, GSI_CHANNEL_TYPE_GPI);
+ /* EV_EE field is 0 (GSI_EE_AP) */
+ val |= reg_bit(reg, EV_INTYPE);
+ val |= reg_encode(reg, EV_ELEMENT_SIZE, GSI_RING_ELEMENT_SIZE);
iowrite32(val, gsi->virt + reg_n_offset(reg, evt_ring_id));
reg = gsi_reg(gsi, EV_CH_E_CNTXT_1);
@@ -763,11 +761,12 @@ static void gsi_evt_ring_program(struct gsi *gsi, u32 evt_ring_id)
/* Enable interrupt moderation by setting the moderation delay */
reg = gsi_reg(gsi, EV_CH_E_CNTXT_8);
- val = u32_encode_bits(GSI_EVT_RING_INT_MODT, MODT_FMASK);
- val |= u32_encode_bits(1, MODC_FMASK); /* comes from channel */
+ val = reg_encode(reg, EV_MODT, GSI_EVT_RING_INT_MODT);
+ val = reg_encode(reg, EV_MODC, 1); /* comes from channel */
+ /* EV_MOD_CNT is 0 (no counter-based interrupt coalescing) */
iowrite32(val, gsi->virt + reg_n_offset(reg, evt_ring_id));
- /* No MSI write data, and MSI address high and low address is 0 */
+ /* No MSI write data, and MSI high and low address is 0 */
reg = gsi_reg(gsi, EV_CH_E_CNTXT_9);
iowrite32(0, gsi->virt + reg_n_offset(reg, evt_ring_id));
diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h
index 3f1a49a4f7c47..acd06a0de93b3 100644
--- a/drivers/net/ipa/gsi_reg.h
+++ b/drivers/net/ipa/gsi_reg.h
@@ -146,18 +146,21 @@ enum gsi_prefetch_mode {
};
/* EV_CH_E_CNTXT_0 register */
-/* enum gsi_channel_type defines EV_CHTYPE field values in EV_CH_E_CNTXT_0 */
-#define EV_CHTYPE_FMASK GENMASK(3, 0)
-#define EV_EE_FMASK GENMASK(7, 4)
-#define EV_EVCHID_FMASK GENMASK(15, 8)
-#define EV_INTYPE_FMASK GENMASK(16, 16)
-#define EV_CHSTATE_FMASK GENMASK(23, 20)
-#define EV_ELEMENT_SIZE_FMASK GENMASK(31, 24)
+enum gsi_reg_ch_c_ev_ch_e_cntxt_0_field_id {
+ EV_CHTYPE, /* enum gsi_channel_type */
+ EV_EE, /* enum gsi_ee_id; always GSI_EE_AP for us */
+ EV_EVCHID,
+ EV_INTYPE,
+ EV_CHSTATE,
+ EV_ELEMENT_SIZE,
+};
/* EV_CH_E_CNTXT_8 register */
-#define MODT_FMASK GENMASK(15, 0)
-#define MODC_FMASK GENMASK(23, 16)
-#define MOD_CNT_FMASK GENMASK(31, 24)
+enum gsi_reg_ch_c_ev_ch_e_cntxt_8_field_id {
+ EV_MODT,
+ EV_MODC,
+ EV_MOD_CNT,
+};
/* GSI_STATUS register */
#define ENABLED_FMASK GENMASK(0, 0)
diff --git a/drivers/net/ipa/reg/gsi_reg-v3.1.c b/drivers/net/ipa/reg/gsi_reg-v3.1.c
index 4aa7a1c52cb35..36595b21dff7b 100644
--- a/drivers/net/ipa/reg/gsi_reg-v3.1.c
+++ b/drivers/net/ipa/reg/gsi_reg-v3.1.c
@@ -71,8 +71,18 @@ REG_STRIDE(CH_C_SCRATCH_2, ch_c_scratch_2,
REG_STRIDE(CH_C_SCRATCH_3, ch_c_scratch_3,
0x0001c06c + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
- 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_0_fmask[] = {
+ [EV_CHTYPE] = GENMASK(3, 0),
+ [EV_EE] = GENMASK(7, 4),
+ [EV_EVCHID] = GENMASK(15, 8),
+ [EV_INTYPE] = BIT(16),
+ /* Bits 17-19 reserved */
+ [EV_CHSTATE] = GENMASK(23, 20),
+ [EV_ELEMENT_SIZE] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
+ 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,
0x0001d004 + 0x4000 * GSI_EE_AP, 0x80);
@@ -86,8 +96,14 @@ REG_STRIDE(EV_CH_E_CNTXT_3, ev_ch_e_cntxt_3,
REG_STRIDE(EV_CH_E_CNTXT_4, ev_ch_e_cntxt_4,
0x0001d010 + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
- 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_8_fmask[] = {
+ [EV_MODT] = GENMASK(15, 0),
+ [EV_MODC] = GENMASK(23, 16),
+ [EV_MOD_CNT] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
+ 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_9, ev_ch_e_cntxt_9,
0x0001d024 + 0x4000 * GSI_EE_AP, 0x80);
diff --git a/drivers/net/ipa/reg/gsi_reg-v3.5.1.c b/drivers/net/ipa/reg/gsi_reg-v3.5.1.c
index 045061a870032..a30bfbfa6c1fd 100644
--- a/drivers/net/ipa/reg/gsi_reg-v3.5.1.c
+++ b/drivers/net/ipa/reg/gsi_reg-v3.5.1.c
@@ -71,8 +71,18 @@ REG_STRIDE(CH_C_SCRATCH_2, ch_c_scratch_2,
REG_STRIDE(CH_C_SCRATCH_3, ch_c_scratch_3,
0x0001c06c + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
- 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_0_fmask[] = {
+ [EV_CHTYPE] = GENMASK(3, 0),
+ [EV_EE] = GENMASK(7, 4),
+ [EV_EVCHID] = GENMASK(15, 8),
+ [EV_INTYPE] = BIT(16),
+ /* Bits 17-19 reserved */
+ [EV_CHSTATE] = GENMASK(23, 20),
+ [EV_ELEMENT_SIZE] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
+ 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,
0x0001d004 + 0x4000 * GSI_EE_AP, 0x80);
@@ -86,8 +96,14 @@ REG_STRIDE(EV_CH_E_CNTXT_3, ev_ch_e_cntxt_3,
REG_STRIDE(EV_CH_E_CNTXT_4, ev_ch_e_cntxt_4,
0x0001d010 + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
- 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_8_fmask[] = {
+ [EV_MODT] = GENMASK(15, 0),
+ [EV_MODC] = GENMASK(23, 16),
+ [EV_MOD_CNT] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
+ 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_9, ev_ch_e_cntxt_9,
0x0001d024 + 0x4000 * GSI_EE_AP, 0x80);
diff --git a/drivers/net/ipa/reg/gsi_reg-v4.0.c b/drivers/net/ipa/reg/gsi_reg-v4.0.c
index 3374d4e9272d8..c0042fb9e760f 100644
--- a/drivers/net/ipa/reg/gsi_reg-v4.0.c
+++ b/drivers/net/ipa/reg/gsi_reg-v4.0.c
@@ -72,8 +72,18 @@ REG_STRIDE(CH_C_SCRATCH_2, ch_c_scratch_2,
REG_STRIDE(CH_C_SCRATCH_3, ch_c_scratch_3,
0x0001c06c + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
- 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_0_fmask[] = {
+ [EV_CHTYPE] = GENMASK(3, 0),
+ [EV_EE] = GENMASK(7, 4),
+ [EV_EVCHID] = GENMASK(15, 8),
+ [EV_INTYPE] = BIT(16),
+ /* Bits 17-19 reserved */
+ [EV_CHSTATE] = GENMASK(23, 20),
+ [EV_ELEMENT_SIZE] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
+ 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,
0x0001d004 + 0x4000 * GSI_EE_AP, 0x80);
@@ -87,8 +97,14 @@ REG_STRIDE(EV_CH_E_CNTXT_3, ev_ch_e_cntxt_3,
REG_STRIDE(EV_CH_E_CNTXT_4, ev_ch_e_cntxt_4,
0x0001d010 + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
- 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_8_fmask[] = {
+ [EV_MODT] = GENMASK(15, 0),
+ [EV_MODC] = GENMASK(23, 16),
+ [EV_MOD_CNT] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
+ 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_9, ev_ch_e_cntxt_9,
0x0001d024 + 0x4000 * GSI_EE_AP, 0x80);
diff --git a/drivers/net/ipa/reg/gsi_reg-v4.5.c b/drivers/net/ipa/reg/gsi_reg-v4.5.c
index 0502f3e635dab..ace13fb2d5d2b 100644
--- a/drivers/net/ipa/reg/gsi_reg-v4.5.c
+++ b/drivers/net/ipa/reg/gsi_reg-v4.5.c
@@ -74,8 +74,18 @@ REG_STRIDE(CH_C_SCRATCH_2, ch_c_scratch_2,
REG_STRIDE(CH_C_SCRATCH_3, ch_c_scratch_3,
0x0001c06c + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
- 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_0_fmask[] = {
+ [EV_CHTYPE] = GENMASK(3, 0),
+ [EV_EE] = GENMASK(7, 4),
+ [EV_EVCHID] = GENMASK(15, 8),
+ [EV_INTYPE] = BIT(16),
+ /* Bits 17-19 reserved */
+ [EV_CHSTATE] = GENMASK(23, 20),
+ [EV_ELEMENT_SIZE] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
+ 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,
0x0001d004 + 0x4000 * GSI_EE_AP, 0x80);
@@ -89,8 +99,14 @@ REG_STRIDE(EV_CH_E_CNTXT_3, ev_ch_e_cntxt_3,
REG_STRIDE(EV_CH_E_CNTXT_4, ev_ch_e_cntxt_4,
0x0001d010 + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
- 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_8_fmask[] = {
+ [EV_MODT] = GENMASK(15, 0),
+ [EV_MODC] = GENMASK(23, 16),
+ [EV_MOD_CNT] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
+ 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_9, ev_ch_e_cntxt_9,
0x0001d024 + 0x4000 * GSI_EE_AP, 0x80);
diff --git a/drivers/net/ipa/reg/gsi_reg-v4.9.c b/drivers/net/ipa/reg/gsi_reg-v4.9.c
index 2c61633fdb427..5d6670993fa83 100644
--- a/drivers/net/ipa/reg/gsi_reg-v4.9.c
+++ b/drivers/net/ipa/reg/gsi_reg-v4.9.c
@@ -75,8 +75,18 @@ REG_STRIDE(CH_C_SCRATCH_2, ch_c_scratch_2,
REG_STRIDE(CH_C_SCRATCH_3, ch_c_scratch_3,
0x0001c06c + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
- 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_0_fmask[] = {
+ [EV_CHTYPE] = GENMASK(3, 0),
+ [EV_EE] = GENMASK(7, 4),
+ [EV_EVCHID] = GENMASK(15, 8),
+ [EV_INTYPE] = BIT(16),
+ /* Bits 17-19 reserved */
+ [EV_CHSTATE] = GENMASK(23, 20),
+ [EV_ELEMENT_SIZE] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
+ 0x0001d000 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,
0x0001d004 + 0x4000 * GSI_EE_AP, 0x80);
@@ -90,8 +100,14 @@ REG_STRIDE(EV_CH_E_CNTXT_3, ev_ch_e_cntxt_3,
REG_STRIDE(EV_CH_E_CNTXT_4, ev_ch_e_cntxt_4,
0x0001d010 + 0x4000 * GSI_EE_AP, 0x80);
-REG_STRIDE(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
- 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
+static const u32 reg_ev_ch_e_cntxt_8_fmask[] = {
+ [EV_MODT] = GENMASK(15, 0),
+ [EV_MODC] = GENMASK(23, 16),
+ [EV_MOD_CNT] = GENMASK(31, 24),
+};
+
+REG_STRIDE_FIELDS(EV_CH_E_CNTXT_8, ev_ch_e_cntxt_8,
+ 0x0001d020 + 0x4000 * GSI_EE_AP, 0x80);
REG_STRIDE(EV_CH_E_CNTXT_9, ev_ch_e_cntxt_9,
0x0001d024 + 0x4000 * GSI_EE_AP, 0x80);
--
2.34.1
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