The patch titled
Subject: gpio: thunderx: utilize for_each_set_clump macro
has been removed from the -mm tree. Its filename was
gpio-thunderx-utilize-for_each_set_clump-macro.patch
This patch was dropped because an updated version will be merged
------------------------------------------------------
From: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Subject: gpio: thunderx: utilize for_each_set_clump macro
Reimplement the thunderx_gpio_set_multiple function in
drivers/gpio/gpio-thunderx.c to use the new for_each_set_clump macro.
Instead of looping for each bank in thunderx_gpio_set_multiple function,
now we can skip bank which is not set and save cycles.
Link: https://lkml.kernel.org/r/5e94ad3c156b98d2ed28617b2ca25bacadc189d5.1603055402.git.syednwaris@xxxxxxxxx
Signed-off-by: Syed Nayyar Waris <syednwaris@xxxxxxxxx>
Signed-off-by: William Breathitt Gray <vilhelm.gray@xxxxxxxxx>
Cc: Robert Richter <rrichter@xxxxxxxxxxx>
Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpio/gpio-thunderx.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
--- a/drivers/gpio/gpio-thunderx.c~gpio-thunderx-utilize-for_each_set_clump-macro
+++ a/drivers/gpio/gpio-thunderx.c
@@ -275,12 +275,15 @@ static void thunderx_gpio_set_multiple(s
unsigned long *bits)
{
int bank;
- u64 set_bits, clear_bits;
+ unsigned long set_bits, clear_bits, gpio_mask;
+ unsigned long offset;
+
struct thunderx_gpio *txgpio = gpiochip_get_data(chip);
- for (bank = 0; bank <= chip->ngpio / 64; bank++) {
- set_bits = bits[bank] & mask[bank];
- clear_bits = ~bits[bank] & mask[bank];
+ for_each_set_clump(offset, gpio_mask, mask, chip->ngpio, 64) {
+ bank = offset / 64;
+ set_bits = bits[bank] & gpio_mask;
+ clear_bits = ~bits[bank] & gpio_mask;
writeq(set_bits, txgpio->register_base + (bank * GPIO_2ND_BANK) + GPIO_TX_SET);
writeq(clear_bits, txgpio->register_base + (bank * GPIO_2ND_BANK) + GPIO_TX_CLR);
}
_
Patches currently in -mm which might be from syednwaris@xxxxxxxxx are
gpio-xilinx-utilize-generic-bitmap_get_value-and-_set_value.patch
