From: xiaoming <2014500726@smail.xtu.edu.cn> To: Gabriel Somlo <somlo@cmu.edu> Cc: "Michael S . Tsirkin" <mst@redhat.com>, qemu-devel@nongnu.org, linux-kernel@vger.kernel.org, xiaoming <2014500726@smail.xtu.edu.cn> Subject: [PATCH] [PATCH] drivers/firmware/qemu_fw_cfg: add RISCV support Date: Wed, 1 Sep 2021 18:41:30 +0800 [thread overview] Message-ID: <20210901104130.10185-1-2014500726@smail.xtu.edu.cn> (raw) In the latest release of qemu (qemu 6.0.0 or higher) riscv virt already supports fw_cfg, but drivers/firmware/qemu_fw_cfg not support. Signed-off-by: xiaoming <2014500726@smail.xtu.edu.cn> --- drivers/firmware/Kconfig | 2 +- drivers/firmware/qemu_fw_cfg.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 1db738d5b..4eb8d8a3a 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -186,7 +186,7 @@ config RASPBERRYPI_FIRMWARE config FW_CFG_SYSFS tristate "QEMU fw_cfg device support in sysfs" - depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86) + depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86 || RISCV) depends on HAS_IOPORT_MAP default n help diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index 172c751a4..36b5b2612 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -225,6 +225,10 @@ static void fw_cfg_io_cleanup(void) # define FW_CFG_CTRL_OFF 0x00 # define FW_CFG_DATA_OFF 0x01 # define FW_CFG_DMA_OFF 0x04 +# elif defined(CONFIG_RISCV) +# define FW_CFG_CTRL_OFF 0x08 +# define FW_CFG_DATA_OFF 0x00 +# define FW_CFG_DMA_OFF 0x10 # else # error "QEMU FW_CFG not available on this architecture!" # endif -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: xiaoming <2014500726@smail.xtu.edu.cn> To: Gabriel Somlo <somlo@cmu.edu> Cc: linux-kernel@vger.kernel.org, xiaoming <2014500726@smail.xtu.edu.cn>, qemu-devel@nongnu.org, "Michael S . Tsirkin" <mst@redhat.com> Subject: [PATCH] [PATCH] drivers/firmware/qemu_fw_cfg: add RISCV support Date: Wed, 1 Sep 2021 18:41:30 +0800 [thread overview] Message-ID: <20210901104130.10185-1-2014500726@smail.xtu.edu.cn> (raw) In the latest release of qemu (qemu 6.0.0 or higher) riscv virt already supports fw_cfg, but drivers/firmware/qemu_fw_cfg not support. Signed-off-by: xiaoming <2014500726@smail.xtu.edu.cn> --- drivers/firmware/Kconfig | 2 +- drivers/firmware/qemu_fw_cfg.c | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 1db738d5b..4eb8d8a3a 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -186,7 +186,7 @@ config RASPBERRYPI_FIRMWARE config FW_CFG_SYSFS tristate "QEMU fw_cfg device support in sysfs" - depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86) + depends on SYSFS && (ARM || ARM64 || PARISC || PPC_PMAC || SPARC || X86 || RISCV) depends on HAS_IOPORT_MAP default n help diff --git a/drivers/firmware/qemu_fw_cfg.c b/drivers/firmware/qemu_fw_cfg.c index 172c751a4..36b5b2612 100644 --- a/drivers/firmware/qemu_fw_cfg.c +++ b/drivers/firmware/qemu_fw_cfg.c @@ -225,6 +225,10 @@ static void fw_cfg_io_cleanup(void) # define FW_CFG_CTRL_OFF 0x00 # define FW_CFG_DATA_OFF 0x01 # define FW_CFG_DMA_OFF 0x04 +# elif defined(CONFIG_RISCV) +# define FW_CFG_CTRL_OFF 0x08 +# define FW_CFG_DATA_OFF 0x00 +# define FW_CFG_DMA_OFF 0x10 # else # error "QEMU FW_CFG not available on this architecture!" # endif -- 2.17.1
next reply other threads:[~2021-09-01 10:41 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-01 10:41 xiaoming [this message] 2021-09-01 10:41 ` [PATCH] [PATCH] drivers/firmware/qemu_fw_cfg: add RISCV support xiaoming
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