net: ipa: start generalizing "ipa_reg"

IPA register definitions have evolved with each new version.  The
changes required to support more than 32 endpoints in IPA v5.0 made
it best to define a unified mechanism for defining registers and
their fields.

GSI register definitions, meanwhile, have remained fairly stable.
And even as the total number of IPA endpoints goes beyond 32, the
number of GSI channels on a given EE that underly endpoints still
remains 32 or less.

Despite that, GSI v3.0 (which is used with IPA v5.0) extends the
number of channels (and events) it supports to be about 256, and as
a result, many GSI register definitions must change significantly.
To address this, we'll use the same "ipa_reg" mechanism to define
the GSI registers.

As a first step in generalizing the "ipa_reg" to also support GSI
registers, isolate the definitions of the "ipa_reg" and "ipa_regs"
structure types (and some supporting macros) into a new header file,
and remove the "ipa_" and "IPA_" from symbol names.

Separate the IPA register ID validity checking from the generic
check that a register ID is in range.  Aside from that, this is
intended to have no functional effect on the code.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 9 deletions

diff --git a/drivers/net/ipa/ipa_main.c b/drivers/net/ipa/ipa_main.c
index 60d7c558163f..71cf51c9cc91 100644
--- a/drivers/net/ipa/ipa_main.c
+++ b/drivers/net/ipa/ipa_main.c
@@ -203,7 +203,7 @@ static void ipa_teardown(struct ipa *ipa)
 static void
 ipa_hardware_config_bcr(struct ipa *ipa, const struct ipa_data *data)
 {
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 val;
 
 	/* IPA v4.5+ has no backward compatibility register */
@@ -218,7 +218,7 @@ ipa_hardware_config_bcr(struct ipa *ipa, const struct ipa_data *data)
 static void ipa_hardware_config_tx(struct ipa *ipa)
 {
 	enum ipa_version version = ipa->version;
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 offset;
 	u32 val;
 
@@ -239,7 +239,7 @@ static void ipa_hardware_config_tx(struct ipa *ipa)
 static void ipa_hardware_config_clkon(struct ipa *ipa)
 {
 	enum ipa_version version = ipa->version;
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 val;
 
 	if (version >= IPA_VERSION_4_5)
@@ -265,7 +265,7 @@ static void ipa_hardware_config_clkon(struct ipa *ipa)
 /* Configure bus access behavior for IPA components */
 static void ipa_hardware_config_comp(struct ipa *ipa)
 {
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 offset;
 	u32 val;
 
@@ -299,7 +299,7 @@ ipa_hardware_config_qsb(struct ipa *ipa, const struct ipa_data *data)
 {
 	const struct ipa_qsb_data *data0;
 	const struct ipa_qsb_data *data1;
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 val;
 
 	/* QMB 0 represents DDR; QMB 1 (if present) represents PCIe */
@@ -368,7 +368,7 @@ static __always_inline u32 ipa_aggr_granularity_val(u32 usec)
  */
 static void ipa_qtime_config(struct ipa *ipa)
 {
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 offset;
 	u32 val;
 
@@ -416,7 +416,7 @@ static void ipa_qtime_config(struct ipa *ipa)
 static void ipa_hardware_config_counter(struct ipa *ipa)
 {
 	u32 granularity = ipa_aggr_granularity_val(IPA_AGGR_GRANULARITY);
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 val;
 
 	reg = ipa_reg(ipa, COUNTER_CFG);
@@ -435,7 +435,7 @@ static void ipa_hardware_config_timing(struct ipa *ipa)
 
 static void ipa_hardware_config_hashing(struct ipa *ipa)
 {
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 
 	/* Other than IPA v4.2, all versions enable "hashing".  Starting
 	 * with IPA v5.0, the filter and router tables are implemented
@@ -458,7 +458,7 @@ static void ipa_idle_indication_cfg(struct ipa *ipa,
 				    u32 enter_idle_debounce_thresh,
 				    bool const_non_idle_enable)
 {
-	const struct ipa_reg *reg;
+	const struct reg *reg;
 	u32 val;
 
 	if (ipa->version < IPA_VERSION_3_5_1)