hw/riscv: Move sifive_gpio model to hw/gpio

This is an effort to clean up the hw/riscv directory. Ideally it
should only contain the RISC-V SoC / machine codes plus generic
codes. Let's move sifive_gpio model to hw/gpio directory.

Note this also removes the trace-events in the hw/riscv directory,
since gpio is the only supported trace target in that directory.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <1599129623-68957-5-git-send-email-bmeng.cn@gmail.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

hw/gpio/Kconfig

@@ -7,3 +7,6 @@ config PL061
 
 config GPIO_KEY
     bool
+
+config SIFIVE_GPIO
+    bool

hw/gpio/meson.build

@@ -10,3 +10,4 @@ softmmu_ss.add(when: 'CONFIG_NRF51_SOC', if_true: files('nrf51_gpio.c'))
 softmmu_ss.add(when: 'CONFIG_OMAP', if_true: files('omap_gpio.c'))
 softmmu_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_gpio.c'))
 softmmu_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files('aspeed_gpio.c'))
+softmmu_ss.add(when: 'CONFIG_SIFIVE_GPIO', if_true: files('sifive_gpio.c'))

hw/gpio/sifive_gpio.c

@@ -15,7 +15,7 @@
 #include "qemu/log.h"
 #include "hw/irq.h"
 #include "hw/qdev-properties.h"
-#include "hw/riscv/sifive_gpio.h"
+#include "hw/gpio/sifive_gpio.h"
 #include "migration/vmstate.h"
 #include "trace.h"
 

hw/gpio/trace-events

@@ -5,3 +5,9 @@ nrf51_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PR
 nrf51_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
 nrf51_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
 nrf51_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
+
+# sifive_gpio.c
+sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
+sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
+sifive_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
+sifive_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64

hw/riscv/Kconfig

@@ -15,6 +15,7 @@ config SIFIVE_E
     bool
     select HART
     select SIFIVE
+    select SIFIVE_GPIO
     select SIFIVE_E_PRCI
     select UNIMP
 
@@ -23,6 +24,7 @@ config SIFIVE_U
     select CADENCE
     select HART
     select SIFIVE
+    select SIFIVE_GPIO
     select SIFIVE_PDMA
     select SIFIVE_U_OTP
     select SIFIVE_U_PRCI

hw/riscv/meson.build

@@ -5,7 +5,6 @@ riscv_ss.add(when: 'CONFIG_HART', if_true: files('riscv_hart.c'))
 riscv_ss.add(when: 'CONFIG_OPENTITAN', if_true: files('opentitan.c'))
 riscv_ss.add(when: 'CONFIG_RISCV_VIRT', if_true: files('virt.c'))
 riscv_ss.add(when: 'CONFIG_SIFIVE', if_true: files('sifive_clint.c'))
-riscv_ss.add(when: 'CONFIG_SIFIVE', if_true: files('sifive_gpio.c'))
 riscv_ss.add(when: 'CONFIG_SIFIVE', if_true: files('sifive_plic.c'))
 riscv_ss.add(when: 'CONFIG_SIFIVE', if_true: files('sifive_test.c'))
 riscv_ss.add(when: 'CONFIG_SIFIVE', if_true: files('sifive_uart.c'))

hw/riscv/trace-events

@@ -1,7 +0,0 @@
-# See docs/devel/tracing.txt for syntax documentation.
-
-# hw/gpio/sifive_gpio.c
-sifive_gpio_read(uint64_t offset, uint64_t r) "offset 0x%" PRIx64 " value 0x%" PRIx64
-sifive_gpio_write(uint64_t offset, uint64_t value) "offset 0x%" PRIx64 " value 0x%" PRIx64
-sifive_gpio_set(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64
-sifive_gpio_update_output_irq(int64_t line, int64_t value) "line %" PRIi64 " value %" PRIi64

hw/riscv/trace.h

@@ -1 +0,0 @@
-#include "trace/trace-hw_riscv.h"

include/hw/riscv/sifive_e.h

@@ -21,7 +21,7 @@
 
 #include "hw/riscv/riscv_hart.h"
 #include "hw/riscv/sifive_cpu.h"
-#include "hw/riscv/sifive_gpio.h"
+#include "hw/gpio/sifive_gpio.h"
 
 #define TYPE_RISCV_E_SOC "riscv.sifive.e.soc"
 #define RISCV_E_SOC(obj) \

include/hw/riscv/sifive_u.h

@@ -23,7 +23,7 @@
 #include "hw/net/cadence_gem.h"
 #include "hw/riscv/riscv_hart.h"
 #include "hw/riscv/sifive_cpu.h"
-#include "hw/riscv/sifive_gpio.h"
+#include "hw/gpio/sifive_gpio.h"
 #include "hw/misc/sifive_u_otp.h"
 #include "hw/misc/sifive_u_prci.h"
 

meson.build

@@ -773,7 +773,6 @@ if have_system
     'hw/watchdog',
     'hw/xen',
     'hw/gpio',
-    'hw/riscv',
     'migration',
     'net',
     'ui',