| Message ID | 20200716043139.565734-1-tudor.ambarus@microchip.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | b780c3f38812bce7d7baebe2108738a043d6c4c3 |
| Headers | show |
| Series | spi: atmel-quadspi: Use optimezed memcpy_fromio()/memcpy_toio() | expand |
On Thu, 16 Jul 2020 07:31:39 +0300, Tudor Ambarus wrote: > Optimezed mem*io operations are defined for LE platforms, use them. > > The ARM and !ARCH_EBSA110 dependencies for COMPILE_TEST were added > only for the _memcpy_fromio()/_memcpy_toio() functions. Drop these > dependencies. > > Tested unaligned accesses on both sama5d2 and sam9x60 QSPI controllers > using SPI NOR flashes, everything works ok. The following performance > improvement can be seen when running mtd_speedtest: > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next Thanks! [1/1] spi: atmel-quadspi: Use optimezed memcpy_fromio()/memcpy_toio() commit: b780c3f38812bce7d7baebe2108738a043d6c4c3 All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index fd64c865f6ef..b89d03a36cbd 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -103,7 +103,7 @@ config SPI_AT91_USART config SPI_ATMEL_QUADSPI tristate "Atmel Quad SPI Controller" - depends on ARCH_AT91 || (ARM && COMPILE_TEST && !ARCH_EBSA110) + depends on ARCH_AT91 || COMPILE_TEST depends on OF && HAS_IOMEM help This enables support for the Quad SPI controller in master mode. diff --git a/drivers/spi/atmel-quadspi.c b/drivers/spi/atmel-quadspi.c index a898755fb41e..8c009c175f2c 100644 --- a/drivers/spi/atmel-quadspi.c +++ b/drivers/spi/atmel-quadspi.c @@ -430,11 +430,11 @@ static int atmel_qspi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) /* Send/Receive data */ if (op->data.dir == SPI_MEM_DATA_IN) - _memcpy_fromio(op->data.buf.in, aq->mem + offset, - op->data.nbytes); + memcpy_fromio(op->data.buf.in, aq->mem + offset, + op->data.nbytes); else - _memcpy_toio(aq->mem + offset, op->data.buf.out, - op->data.nbytes); + memcpy_toio(aq->mem + offset, op->data.buf.out, + op->data.nbytes); /* Release the chip-select */ atmel_qspi_write(QSPI_CR_LASTXFER, aq, QSPI_CR);
Optimezed mem*io operations are defined for LE platforms, use them. The ARM and !ARCH_EBSA110 dependencies for COMPILE_TEST were added only for the _memcpy_fromio()/_memcpy_toio() functions. Drop these dependencies. Tested unaligned accesses on both sama5d2 and sam9x60 QSPI controllers using SPI NOR flashes, everything works ok. The following performance improvement can be seen when running mtd_speedtest: sama5d2_xplained (mx25l25635e) - before: mtd_speedtest: eraseblock write speed is 983 KiB/s mtd_speedtest: eraseblock read speed is 6150 KiB/s - after: mtd_speedtest: eraseblock write speed is 1055 KiB/s mtd_speedtest: eraseblock read speed is 20144 KiB/s sam9x60ek (sst26vf064b) - before: mtd_speedtest: eraseblock write speed is 4770 KiB/s mtd_speedtest: eraseblock read speed is 8062 KiB/s - after: mtd_speedtest: eraseblock write speed is 4524 KiB/s mtd_speedtest: eraseblock read speed is 21186 KiB/s Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> --- drivers/spi/Kconfig | 2 +- drivers/spi/atmel-quadspi.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-)