tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3 commit: 894fa235eb4ca0bfa692dbe4932c2f940cdc8c1e powerpc: inline iomap accessors date: 4 weeks ago config: powerpc64-randconfig-s031-20201223 (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=894fa235eb4ca0bfa692dbe4932c2f940cdc8c1e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 894fa235eb4ca0bfa692dbe4932c2f940cdc8c1e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <l...@intel.com>
"sparse warnings: (new ones prefixed by >>)"
>> drivers/tty/serial/ucc_uart.c:264:21: sparse: sparse: incorrect type in
>> argument 1 (different address spaces) @@ expected void const [noderef]
>> __iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:264:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:264:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:268:21: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:268:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:268:21: sparse: got restricted __be16 *
>> drivers/tty/serial/ucc_uart.c:347:17: sparse: sparse: incorrect type in
>> argument 2 (different address spaces) @@ expected void [noderef] __iomem
>> *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:347:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:347:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:348:17: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:348:17: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:348:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:348:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:348:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:348:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:350:21: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:350:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:350:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:369:18: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:369:18: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:369:18: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:382:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:382:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:382:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:383:17: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:383:17: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:383:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:383:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:383:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:383:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:386:21: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:386:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:386:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:474:26: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:474:26: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:474:26: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:481:21: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:481:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:481:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:512:17: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:512:17: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:512:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:512:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:512:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:512:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:515:21: sparse: sparse: incorrect type in
argument 1 (different address spaces) @@ expected void const [noderef]
__iomem *addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:515:21: sparse: expected void const
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:515:21: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:604:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:604:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:604:17: sparse: got restricted __be16 *
>> drivers/tty/serial/ucc_uart.c:605:17: sparse: sparse: incorrect type in
>> argument 2 (different address spaces) @@ expected void [noderef] __iomem
>> *addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:605:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:605:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:606:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:606:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:606:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:612:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:612:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:612:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:613:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:613:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:613:9: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:614:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:614:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:614:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:625:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:625:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:625:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:626:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:626:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:626:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:627:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:627:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:627:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:637:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:637:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:637:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:638:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:638:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:638:9: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:639:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:639:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:639:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:653:46: sparse: sparse: incorrect type in
initializer (different address spaces) @@ expected struct ucc_uart_pram
*uccup @@ got struct ucc_uart_pram [noderef] __iomem *uccup @@
drivers/tty/serial/ucc_uart.c:653:46: sparse: expected struct
ucc_uart_pram *uccup
drivers/tty/serial/ucc_uart.c:653:46: sparse: got struct ucc_uart_pram
[noderef] __iomem *uccup
drivers/tty/serial/ucc_uart.c:661:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:661:9: sparse: expected void volatile
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:661:9: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:662:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:662:9: sparse: expected void volatile
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:662:9: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:663:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:663:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:663:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:664:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:664:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:664:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:665:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:665:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:665:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:666:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:666:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:666:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:667:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:667:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:667:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:668:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:668:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:668:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:669:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:669:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:669:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:670:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:670:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:670:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:671:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:671:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:671:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:672:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:672:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:672:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:674:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:674:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:674:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:675:9: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:675:9: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:675:9: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:713:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:713:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:713:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:714:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be16 * @@
drivers/tty/serial/ucc_uart.c:714:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:714:17: sparse: got restricted __be16 *
drivers/tty/serial/ucc_uart.c:715:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:715:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:715:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:716:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:716:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:716:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:717:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:717:17: sparse: expected void volatile
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:717:17: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:718:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:718:17: sparse: expected void volatile
[noderef] __iomem *addr
drivers/tty/serial/ucc_uart.c:718:17: sparse: got unsigned char *
drivers/tty/serial/ucc_uart.c:719:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void [noderef] __iomem
*addr @@ got restricted __be32 * @@
drivers/tty/serial/ucc_uart.c:719:17: sparse: expected void [noderef]
__iomem *addr
drivers/tty/serial/ucc_uart.c:719:17: sparse: got restricted __be32 *
drivers/tty/serial/ucc_uart.c:720:17: sparse: sparse: incorrect type in
argument 2 (different address spaces) @@ expected void volatile [noderef]
__iomem *addr @@ got unsigned char * @@
drivers/tty/serial/ucc_uart.c:720:17: sparse: expected void volatile
[noderef] __iomem *addr
vim +264 drivers/tty/serial/ucc_uart.c
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
248
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
249 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
250 * Return 1 if the QE is done transmitting all buffers for this port
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
251 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
252 * This function scans each BD in sequence. If we find a BD that is not
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
253 * ready (READY=1), then we return 0 indicating that the QE is still
sending
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
254 * data. If we reach the last BD (WRAP=1), then we know we've scanned
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
255 * the entire list, and all BDs are done.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
256 */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
257 static unsigned int qe_uart_tx_empty(struct uart_port *port)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
258 {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
259 struct uart_qe_port *qe_port =
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
260 container_of(port, struct uart_qe_port, port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
261 struct qe_bd *bdp = qe_port->tx_bd_base;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
262
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
263 while (1) {
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
@264 if (qe_ioread16be(&bdp->status) & BD_SC_READY)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
265 /* This BD is not done, so return "not done" */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
266 return 0;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
267
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
268 if (qe_ioread16be(&bdp->status) & BD_SC_WRAP)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
269 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
270 * This BD is done and it's the last one, so return
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
271 * "done"
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
272 */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
273 return 1;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
274
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
275 bdp++;
fc811472c2167cc drivers/tty/serial/ucc_uart.c Joe Perches 2013-10-08
276 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
277 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
278
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
279 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
280 * Set the modem control lines
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
281 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
282 * Although the QE can control the modem control lines (e.g. CTS), we
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
283 * don't need that support. This function must exist, however, otherwise
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
284 * the kernel will panic.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
285 */
4be002f1dec8418 drivers/tty/serial/ucc_uart.c Jason Yan 2020-09-12
286 static void qe_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
287 {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
288 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
289
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
290 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
291 * Get the current modem control line status
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
292 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
293 * Although the QE can control the modem control lines (e.g. CTS), this
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
294 * driver currently doesn't support that, so we always return Carrier
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
295 * Detect, Data Set Ready, and Clear To Send.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
296 */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
297 static unsigned int qe_uart_get_mctrl(struct uart_port *port)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
298 {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
299 return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
300 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
301
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
302 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
303 * Disable the transmit interrupt.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
304 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
305 * Although this function is called "stop_tx", it does not actually stop
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
306 * transmission of data. Instead, it tells the QE to not generate an
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
307 * interrupt when the UCC is finished sending characters.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
308 */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
309 static void qe_uart_stop_tx(struct uart_port *port)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
310 {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
311 struct uart_qe_port *qe_port =
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
312 container_of(port, struct uart_qe_port, port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
313
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
314 qe_clrbits_be16(&qe_port->uccp->uccm, UCC_UART_UCCE_TX);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
315 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
316
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
317 /*
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
318 * Transmit as many characters to the HW as possible.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
319 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
320 * This function will attempt to stuff of all the characters from the
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
321 * kernel's transmit buffer into TX BDs.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
322 *
af901ca181d92aa drivers/serial/ucc_uart.c André Goddard Rosa 2009-11-14
323 * A return value of non-zero indicates that it successfully stuffed all
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
324 * characters from the kernel buffer.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
325 *
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
326 * A return value of zero indicates that there are still characters in the
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
327 * kernel's buffer that have not been transmitted, but there are no more
BDs
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
328 * available. This function should be called again after a BD has been
made
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
329 * available.
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
330 */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
331 static int qe_uart_tx_pump(struct uart_qe_port *qe_port)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
332 {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
333 struct qe_bd *bdp;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
334 unsigned char *p;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
335 unsigned int count;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
336 struct uart_port *port = &qe_port->port;
ebd2c8f6d2ec401 drivers/serial/ucc_uart.c Alan Cox 2009-09-19
337 struct circ_buf *xmit = &port->state->xmit;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
338
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
339 /* Handle xon/xoff */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
340 if (port->x_char) {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
341 /* Pick next descriptor and fill from buffer */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
342 bdp = qe_port->tx_cur;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
343
09a39ec9decd99e drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
344 p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
345
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
346 *p++ = port->x_char;
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
@347 qe_iowrite16be(1, &bdp->length);
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
348 qe_setbits_be16(&bdp->status, BD_SC_READY);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
349 /* Get next BD. */
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
350 if (qe_ioread16be(&bdp->status) & BD_SC_WRAP)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
351 bdp = qe_port->tx_bd_base;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
352 else
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
353 bdp++;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
354 qe_port->tx_cur = bdp;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
355
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
356 port->icount.tx++;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
357 port->x_char = 0;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
358 return 1;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
359 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
360
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
361 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
362 qe_uart_stop_tx(port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
363 return 0;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
364 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
365
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
366 /* Pick next descriptor and fill from buffer */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
367 bdp = qe_port->tx_cur;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
368
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
369 while (!(qe_ioread16be(&bdp->status) & BD_SC_READY) &&
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
370 (xmit->tail != xmit->head)) {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
371 count = 0;
09a39ec9decd99e drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
372 p = qe2cpu_addr(be32_to_cpu(bdp->buf), qe_port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
373 while (count < qe_port->tx_fifosize) {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
374 *p++ = xmit->buf[xmit->tail];
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
375 xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
376 port->icount.tx++;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
377 count++;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
378 if (xmit->head == xmit->tail)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
379 break;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
380 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
381
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
382 qe_iowrite16be(count, &bdp->length);
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
383 qe_setbits_be16(&bdp->status, BD_SC_READY);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
384
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
385 /* Get next BD. */
8b1cdc4033bd165 drivers/tty/serial/ucc_uart.c Rasmus Villemoes 2019-11-28
386 if (qe_ioread16be(&bdp->status) & BD_SC_WRAP)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
387 bdp = qe_port->tx_bd_base;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
388 else
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
389 bdp++;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
390 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
391 qe_port->tx_cur = bdp;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
392
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
393 if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
394 uart_write_wakeup(port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
395
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
396 if (uart_circ_empty(xmit)) {
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
397 /* The kernel buffer is empty, so turn off TX interrupts. We
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
398 don't need to be told when the QE is finished transmitting
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
399 the data. */
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
400 qe_uart_stop_tx(port);
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
401 return 0;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
402 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
403
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
404 return 1;
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
405 }
d7584ed2b994a57 drivers/serial/ucc_uart.c Timur Tabi 2008-01-15
406
:::::: The code at line 264 was first introduced by commit
:::::: 8b1cdc4033bd1659c5499c918d4e59bf8253abec serial: ucc_uart: replace
ppc-specific IO accessors
:::::: TO: Rasmus Villemoes <li...@rasmusvillemoes.dk>
:::::: CC: Li Yang <leoyang...@nxp.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
