rt2x00: Optimize register access in rt2800usb
All register reads/writes in rt2800usb were previously done with
rt2800_register_read/rt2800_register_write. These however indirectly
call rt2x00usb_register_read/rt2x00usb_register_write which adds an
additional overhead of at least one call and several move instructions
to each register access.
Replacing the calls to rt2800_register_read/rt2800_register_write with
direct calls to rt2x00usb_register_read/rt2x00usb_register_write gets
rid of quite a number of instructions in the drivers hotpaths (IRQ
handling and txdone handling).
For consistency replace all references to rt2800_register_read/write
with the rt2x00usb_register_read/write variants.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index fd8aa99..44ead75 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -59,16 +59,16 @@
switch (queue->qid) {
case QID_RX:
- rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
+ rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 1);
- rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+ rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
- rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®);
+ rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, ®);
rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 1);
rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 1);
rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 1);
- rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+ rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
break;
default:
break;
@@ -82,16 +82,16 @@
switch (queue->qid) {
case QID_RX:
- rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
+ rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
rt2x00_set_field32(®, MAC_SYS_CTRL_ENABLE_RX, 0);
- rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+ rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
break;
case QID_BEACON:
- rt2800_register_read(rt2x00dev, BCN_TIME_CFG, ®);
+ rt2x00usb_register_read(rt2x00dev, BCN_TIME_CFG, ®);
rt2x00_set_field32(®, BCN_TIME_CFG_TSF_TICKING, 0);
rt2x00_set_field32(®, BCN_TIME_CFG_TBTT_ENABLE, 0);
rt2x00_set_field32(®, BCN_TIME_CFG_BEACON_GEN, 0);
- rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+ rt2x00usb_register_write(rt2x00dev, BCN_TIME_CFG, reg);
break;
default:
break;
@@ -185,11 +185,11 @@
/*
* Write firmware to device.
*/
- rt2800_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
- data + offset, length);
+ rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
+ data + offset, length);
- rt2800_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
- rt2800_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
+ rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
+ rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);
/*
* Send firmware request to device to load firmware,
@@ -204,7 +204,7 @@
}
msleep(10);
- rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
+ rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
return 0;
}
@@ -222,22 +222,22 @@
if (rt2800_wait_csr_ready(rt2x00dev))
return -EBUSY;
- rt2800_register_read(rt2x00dev, PBF_SYS_CTRL, ®);
- rt2800_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
+ rt2x00usb_register_read(rt2x00dev, PBF_SYS_CTRL, ®);
+ rt2x00usb_register_write(rt2x00dev, PBF_SYS_CTRL, reg & ~0x00002000);
- rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);
+ rt2x00usb_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);
- rt2800_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
+ rt2x00usb_register_read(rt2x00dev, MAC_SYS_CTRL, ®);
rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_CSR, 1);
rt2x00_set_field32(®, MAC_SYS_CTRL_RESET_BBP, 1);
- rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+ rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
- rt2800_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000);
+ rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, 0x00000000);
rt2x00usb_vendor_request_sw(rt2x00dev, USB_DEVICE_MODE, 0,
USB_MODE_RESET, REGISTER_TIMEOUT);
- rt2800_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
+ rt2x00usb_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
return 0;
}
@@ -249,7 +249,7 @@
if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev)))
return -EIO;
- rt2800_register_read(rt2x00dev, USB_DMA_CFG, ®);
+ rt2x00usb_register_read(rt2x00dev, USB_DMA_CFG, ®);
rt2x00_set_field32(®, USB_DMA_CFG_PHY_CLEAR, 0);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_AGG_EN, 0);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_AGG_TIMEOUT, 128);
@@ -262,7 +262,7 @@
/ 1024) - 3);
rt2x00_set_field32(®, USB_DMA_CFG_RX_BULK_EN, 1);
rt2x00_set_field32(®, USB_DMA_CFG_TX_BULK_EN, 1);
- rt2800_register_write(rt2x00dev, USB_DMA_CFG, reg);
+ rt2x00usb_register_write(rt2x00dev, USB_DMA_CFG, reg);
return rt2800_enable_radio(rt2x00dev);
}
@@ -338,12 +338,12 @@
unsigned int i;
u32 reg;
- rt2800_register_read(rt2x00dev, TXRXQ_PCNT, ®);
+ rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, ®);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX0Q)) {
WARNING(rt2x00dev, "TX HW queue 0 timed out,"
" invoke forced kick\n");
- rt2800_register_write(rt2x00dev, PBF_CFG, 0xf40012);
+ rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40012);
for (i = 0; i < 10; i++) {
udelay(10);
@@ -351,15 +351,15 @@
break;
}
- rt2800_register_write(rt2x00dev, PBF_CFG, 0xf40006);
+ rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
}
- rt2800_register_read(rt2x00dev, TXRXQ_PCNT, ®);
+ rt2x00usb_register_read(rt2x00dev, TXRXQ_PCNT, ®);
if (rt2x00_get_field32(reg, TXRXQ_PCNT_TX1Q)) {
WARNING(rt2x00dev, "TX HW queue 1 timed out,"
" invoke forced kick\n");
- rt2800_register_write(rt2x00dev, PBF_CFG, 0xf4000a);
+ rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf4000a);
for (i = 0; i < 10; i++) {
udelay(10);
@@ -367,7 +367,7 @@
break;
}
- rt2800_register_write(rt2x00dev, PBF_CFG, 0xf40006);
+ rt2x00usb_register_write(rt2x00dev, PBF_CFG, 0xf40006);
}
rt2x00usb_watchdog(rt2x00dev);