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MIPS: Netlogic: Fix nlm_read_c2_status() definition 

The sel argument os nlm_read_c2_status() was not used and the macro
returned the sel 0 in all cases. Fix this by defining two macros:
nlm_read_c2_status0() and nlm_read_c2_status1() to return the two
status registers.

Add functions to write to the status registers as well.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: ddaney.cavm@gmail.com
Patchwork: https://patchwork.linux-mips.org/patch/5414/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Jayachandran C 2013-06-10 06:30:02 +00:00 committed by Ralf Baechle
parent 83bee792d7
commit 1c146cd46f
2 changed files with 7 additions and 3 deletions
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8
arch/mips/include/asm/netlogic/xlr/fmn.h
View File

@ -175,6 +175,10 @@
#define nlm_write_c2_cc14(s, v) __write_32bit_c2_register($30, s, v)
#define nlm_write_c2_cc15(s, v) __write_32bit_c2_register($31, s, v)
#define nlm_read_c2_status0() __read_32bit_c2_register($2, 0)
#define nlm_write_c2_status0(v) __write_32bit_c2_register($2, 0, v)
#define nlm_read_c2_status1() __read_32bit_c2_register($2, 1)
#define nlm_write_c2_status1(v) __write_32bit_c2_register($2, 1, v)
#define nlm_read_c2_status(sel) __read_32bit_c2_register($2, 0)
#define nlm_read_c2_config() __read_32bit_c2_register($3, 0)
#define nlm_write_c2_config(v) __write_32bit_c2_register($3, 0, v)
@ -296,7 +300,7 @@ static inline int nlm_fmn_send(unsigned int size, unsigned int code,
*/
for (i = 0; i < 8; i++) {
nlm_msgsnd(dest);
status = nlm_read_c2_status(0);
status = nlm_read_c2_status0();
if ((status & 0x2) == 1)
pr_info("Send pending fail!\n");
if ((status & 0x4) == 0)
@ -316,7 +320,7 @@ static inline int nlm_fmn_receive(int bucket, int *size, int *code, int *stid,
/* wait for load pending to clear */
do {
status = nlm_read_c2_status(1);
status = nlm_read_c2_status0();
} while ((status & 0x08) != 0);
/* receive error bits */

2
arch/mips/netlogic/xlr/fmn.c
View File

@ -80,7 +80,7 @@ static irqreturn_t fmn_message_handler(int irq, void *data)
while (1) {
/* 8 bkts per core, [24:31] each bit represents one bucket
* Bit is Zero if bucket is not empty */
bkt_status = (nlm_read_c2_status() >> 24) & 0xff;
bkt_status = (nlm_read_c2_status0() >> 24) & 0xff;
if (bkt_status == 0xff)
break;
for (bucket = 0; bucket < 8; bucket++) {