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-rw-r--r--arch/sh/Kconfig30
-rw-r--r--arch/sh/Kconfig.debug5
-rw-r--r--arch/sh/boards/mach-ap325rxa/setup.c282
-rw-r--r--arch/sh/boards/mach-kfr2r09/setup.c217
-rw-r--r--arch/sh/boards/mach-migor/setup.c8
-rw-r--r--arch/sh/boards/mach-se/7724/setup.c120
-rw-r--r--arch/sh/include/asm/Kbuild1
-rw-r--r--arch/sh/include/asm/atomic.h35
-rw-r--r--arch/sh/include/asm/cacheflush.h7
-rw-r--r--arch/sh/include/asm/cmpxchg-xchg.h3
-rw-r--r--arch/sh/include/asm/dma-mapping.h23
-rw-r--r--arch/sh/include/asm/hw_breakpoint.h8
-rw-r--r--arch/sh/include/asm/kprobes.h4
-rw-r--r--arch/sh/kernel/Makefile4
-rw-r--r--arch/sh/kernel/cpu/sh4a/clock-sh7723.c2
-rw-r--r--arch/sh/kernel/dma-coherent.c83
-rw-r--r--arch/sh/kernel/dma-nommu.c88
-rw-r--r--arch/sh/kernel/hw_breakpoint.c53
-rw-r--r--arch/sh/kernel/kprobes.c72
-rw-r--r--arch/sh/mm/Kconfig2
-rw-r--r--arch/sh/mm/consistent.c87
-rw-r--r--arch/sh/mm/init.c10
22 files changed, 397 insertions, 747 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index dd4f3d3e644f..1fb7b6d72baf 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -51,7 +51,6 @@ config SUPERH
select HAVE_ARCH_AUDITSYSCALL
select HAVE_FUTEX_CMPXCHG if FUTEX
select HAVE_NMI
- select NEED_DMA_MAP_STATE
select NEED_SG_DMA_LENGTH
help
@@ -159,19 +158,18 @@ config SWAP_IO_SPACE
bool
config DMA_COHERENT
+ select DMA_DIRECT_OPS
bool
config DMA_NONCOHERENT
def_bool !DMA_COHERENT
+ select ARCH_HAS_SYNC_DMA_FOR_DEVICE
+ select DMA_NONCOHERENT_OPS
config PGTABLE_LEVELS
default 3 if X2TLB
default 2
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
menu "System type"
#
@@ -713,8 +711,6 @@ config HOTPLUG_CPU
Say Y here to experiment with turning CPUs off and on. CPUs
can be controlled through /sys/devices/system/cpu.
-source "kernel/Kconfig.preempt"
-
config GUSA
def_bool y
depends on !SMP && SUPERH32
@@ -882,12 +878,6 @@ source "drivers/pcmcia/Kconfig"
endmenu
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
menu "Power management options (EXPERIMENTAL)"
source "kernel/power/Kconfig"
@@ -895,17 +885,3 @@ source "kernel/power/Kconfig"
source "drivers/cpuidle/Kconfig"
endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/sh/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index d0767672640d..010b6c33bbba 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -1,11 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
-menu "Kernel hacking"
config TRACE_IRQFLAGS_SUPPORT
def_bool y
-source "lib/Kconfig.debug"
-
config SH_STANDARD_BIOS
bool "Use LinuxSH standard BIOS"
depends on SUPERH32
@@ -88,5 +85,3 @@ config MCOUNT
def_bool y
depends on SUPERH32
depends on STACK_DEBUG || FUNCTION_TRACER
-
-endmenu
diff --git a/arch/sh/boards/mach-ap325rxa/setup.c b/arch/sh/boards/mach-ap325rxa/setup.c
index de8393cb7313..8f234d0435aa 100644
--- a/arch/sh/boards/mach-ap325rxa/setup.c
+++ b/arch/sh/boards/mach-ap325rxa/setup.c
@@ -1,40 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Renesas - AP-325RXA
* (Compatible with Algo System ., LTD. - AP-320A)
*
* Copyright (C) 2008 Renesas Solutions Corp.
* Author : Yusuke Goda <goda.yuske@renesas.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
*/
-#include <linux/init.h>
+#include <asm/clock.h>
+#include <asm/io.h>
+#include <asm/suspend.h>
+
+#include <cpu/sh7723.h>
+
+#include <linux/clkdev.h>
+#include <linux/delay.h>
#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
#include <linux/interrupt.h>
-#include <linux/platform_device.h>
+#include <linux/memblock.h>
+#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/sh_flctl.h>
-#include <linux/mfd/tmio.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
+#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
+#include <linux/sh_intc.h>
#include <linux/smsc911x.h>
-#include <linux/gpio.h>
#include <linux/videodev2.h>
-#include <linux/sh_intc.h>
+
+#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/ov772x.h>
-#include <media/soc_camera.h>
-#include <linux/platform_data/media/soc_camera_platform.h>
-#include <media/drv-intf/sh_mobile_ceu.h>
+
#include <video/sh_mobile_lcdc.h>
-#include <asm/io.h>
-#include <asm/clock.h>
-#include <asm/suspend.h>
-#include <cpu/sh7723.h>
+
+#define CEU_BUFFER_MEMORY_SIZE (4 << 20)
+static phys_addr_t ceu_dma_membase;
/* Dummy supplies, where voltage doesn't matter */
static struct regulator_consumer_supply dummy_supplies[] = {
@@ -253,150 +258,25 @@ static struct platform_device lcdc_device = {
},
};
-static void camera_power(int val)
-{
- gpio_set_value(GPIO_PTZ5, val); /* RST_CAM/RSTB */
- mdelay(10);
-}
-
-#ifdef CONFIG_I2C
-/* support for the old ncm03j camera */
-static unsigned char camera_ncm03j_magic[] =
-{
- 0x87, 0x00, 0x88, 0x08, 0x89, 0x01, 0x8A, 0xE8,
- 0x1D, 0x00, 0x1E, 0x8A, 0x21, 0x00, 0x33, 0x36,
- 0x36, 0x60, 0x37, 0x08, 0x3B, 0x31, 0x44, 0x0F,
- 0x46, 0xF0, 0x4B, 0x28, 0x4C, 0x21, 0x4D, 0x55,
- 0x4E, 0x1B, 0x4F, 0xC7, 0x50, 0xFC, 0x51, 0x12,
- 0x58, 0x02, 0x66, 0xC0, 0x67, 0x46, 0x6B, 0xA0,
- 0x6C, 0x34, 0x7E, 0x25, 0x7F, 0x25, 0x8D, 0x0F,
- 0x92, 0x40, 0x93, 0x04, 0x94, 0x26, 0x95, 0x0A,
- 0x99, 0x03, 0x9A, 0xF0, 0x9B, 0x14, 0x9D, 0x7A,
- 0xC5, 0x02, 0xD6, 0x07, 0x59, 0x00, 0x5A, 0x1A,
- 0x5B, 0x2A, 0x5C, 0x37, 0x5D, 0x42, 0x5E, 0x56,
- 0xC8, 0x00, 0xC9, 0x1A, 0xCA, 0x2A, 0xCB, 0x37,
- 0xCC, 0x42, 0xCD, 0x56, 0xCE, 0x00, 0xCF, 0x1A,
- 0xD0, 0x2A, 0xD1, 0x37, 0xD2, 0x42, 0xD3, 0x56,
- 0x5F, 0x68, 0x60, 0x87, 0x61, 0xA3, 0x62, 0xBC,
- 0x63, 0xD4, 0x64, 0xEA, 0xD6, 0x0F,
-};
-
-static int camera_probe(void)
-{
- struct i2c_adapter *a = i2c_get_adapter(0);
- struct i2c_msg msg;
- int ret;
-
- if (!a)
- return -ENODEV;
-
- camera_power(1);
- msg.addr = 0x6e;
- msg.buf = camera_ncm03j_magic;
- msg.len = 2;
- msg.flags = 0;
- ret = i2c_transfer(a, &msg, 1);
- camera_power(0);
-
- return ret;
-}
-
-static int camera_set_capture(struct soc_camera_platform_info *info,
- int enable)
-{
- struct i2c_adapter *a = i2c_get_adapter(0);
- struct i2c_msg msg;
- int ret = 0;
- int i;
-
- camera_power(0);
- if (!enable)
- return 0; /* no disable for now */
-
- camera_power(1);
- for (i = 0; i < ARRAY_SIZE(camera_ncm03j_magic); i += 2) {
- u_int8_t buf[8];
-
- msg.addr = 0x6e;
- msg.buf = buf;
- msg.len = 2;
- msg.flags = 0;
-
- buf[0] = camera_ncm03j_magic[i];
- buf[1] = camera_ncm03j_magic[i + 1];
-
- ret = (ret < 0) ? ret : i2c_transfer(a, &msg, 1);
- }
-
- return ret;
-}
-
-static int ap325rxa_camera_add(struct soc_camera_device *icd);
-static void ap325rxa_camera_del(struct soc_camera_device *icd);
-
-static struct soc_camera_platform_info camera_info = {
- .format_name = "UYVY",
- .format_depth = 16,
- .format = {
- .code = MEDIA_BUS_FMT_UYVY8_2X8,
- .colorspace = V4L2_COLORSPACE_SMPTE170M,
- .field = V4L2_FIELD_NONE,
- .width = 640,
- .height = 480,
+/* Powerdown/reset gpios for CEU image sensors */
+static struct gpiod_lookup_table ov7725_gpios = {
+ .dev_id = "0-0021",
+ .table = {
+ GPIO_LOOKUP("sh7723_pfc", GPIO_PTZ5, "reset", GPIO_ACTIVE_LOW),
},
- .mbus_param = V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_MASTER |
- V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_HIGH |
- V4L2_MBUS_DATA_ACTIVE_HIGH,
- .mbus_type = V4L2_MBUS_PARALLEL,
- .set_capture = camera_set_capture,
-};
-
-static struct soc_camera_link camera_link = {
- .bus_id = 0,
- .add_device = ap325rxa_camera_add,
- .del_device = ap325rxa_camera_del,
- .module_name = "soc_camera_platform",
- .priv = &camera_info,
};
-static struct platform_device *camera_device;
-
-static void ap325rxa_camera_release(struct device *dev)
-{
- soc_camera_platform_release(&camera_device);
-}
-
-static int ap325rxa_camera_add(struct soc_camera_device *icd)
-{
- int ret = soc_camera_platform_add(icd, &camera_device, &camera_link,
- ap325rxa_camera_release, 0);
- if (ret < 0)
- return ret;
-
- ret = camera_probe();
- if (ret < 0)
- soc_camera_platform_del(icd, camera_device, &camera_link);
-
- return ret;
-}
-
-static void ap325rxa_camera_del(struct soc_camera_device *icd)
-{
- soc_camera_platform_del(icd, camera_device, &camera_link);
-}
-#endif /* CONFIG_I2C */
-
-static int ov7725_power(struct device *dev, int mode)
-{
- camera_power(0);
- if (mode)
- camera_power(1);
-
- return 0;
-}
-
-static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
- .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+static struct ceu_platform_data ceu0_pdata = {
+ .num_subdevs = 1,
+ .subdevs = {
+ { /* [0] = ov7725 */
+ .flags = 0,
+ .bus_width = 8,
+ .bus_shift = 0,
+ .i2c_adapter_id = 0,
+ .i2c_address = 0x21,
+ },
+ },
};
static struct resource ceu_resources[] = {
@@ -410,18 +290,15 @@ static struct resource ceu_resources[] = {
.start = evt2irq(0x880),
.flags = IORESOURCE_IRQ,
},
- [2] = {
- /* place holder for contiguous memory */
- },
};
-static struct platform_device ceu_device = {
- .name = "sh_mobile_ceu",
- .id = 0, /* "ceu0" clock */
+static struct platform_device ap325rxa_ceu_device = {
+ .name = "renesas-ceu",
+ .id = 0, /* "ceu.0" clock */
.num_resources = ARRAY_SIZE(ceu_resources),
.resource = ceu_resources,
.dev = {
- .platform_data = &sh_mobile_ceu_info,
+ .platform_data = &ceu0_pdata,
},
};
@@ -488,44 +365,18 @@ static struct platform_device sdhi1_cn7_device = {
},
};
-static struct i2c_board_info __initdata ap325rxa_i2c_devices[] = {
- {
- I2C_BOARD_INFO("pcf8563", 0x51),
- },
-};
-
-static struct i2c_board_info ap325rxa_i2c_camera[] = {
- {
- I2C_BOARD_INFO("ov772x", 0x21),
- },
-};
-
static struct ov772x_camera_info ov7725_info = {
.flags = OV772X_FLAG_VFLIP | OV772X_FLAG_HFLIP,
.edgectrl = OV772X_AUTO_EDGECTRL(0xf, 0),
};
-static struct soc_camera_link ov7725_link = {
- .bus_id = 0,
- .power = ov7725_power,
- .board_info = &ap325rxa_i2c_camera[0],
- .i2c_adapter_id = 0,
- .priv = &ov7725_info,
-};
-
-static struct platform_device ap325rxa_camera[] = {
+static struct i2c_board_info ap325rxa_i2c_devices[] __initdata = {
{
- .name = "soc-camera-pdrv",
- .id = 0,
- .dev = {
- .platform_data = &ov7725_link,
- },
- }, {
- .name = "soc-camera-pdrv",
- .id = 1,
- .dev = {
- .platform_data = &camera_link,
- },
+ I2C_BOARD_INFO("pcf8563", 0x51),
+ },
+ {
+ I2C_BOARD_INFO("ov772x", 0x21),
+ .platform_data = &ov7725_info,
},
};
@@ -533,12 +384,9 @@ static struct platform_device *ap325rxa_devices[] __initdata = {
&smsc9118_device,
&ap325rxa_nor_flash_device,
&lcdc_device,
- &ceu_device,
&nand_flash_device,
&sdhi0_cn3_device,
&sdhi1_cn7_device,
- &ap325rxa_camera[0],
- &ap325rxa_camera[1],
};
extern char ap325rxa_sdram_enter_start;
@@ -649,8 +497,6 @@ static int __init ap325rxa_devices_setup(void)
__raw_writew(0xFFFF, PORT_DRVCRA);
__raw_writew(0xFFFF, PORT_DRVCRB);
- platform_resource_setup_memory(&ceu_device, "ceu", 4 << 20);
-
/* SDHI0 - CN3 - SD CARD */
gpio_request(GPIO_FN_SDHI0CD_PTD, NULL);
gpio_request(GPIO_FN_SDHI0WP_PTD, NULL);
@@ -670,9 +516,25 @@ static int __init ap325rxa_devices_setup(void)
gpio_request(GPIO_FN_SDHI1CMD, NULL);
gpio_request(GPIO_FN_SDHI1CLK, NULL);
+ /* Add a clock alias for ov7725 xclk source. */
+ clk_add_alias(NULL, "0-0021", "video_clk", NULL);
+
+ /* Register RSTB gpio for ov7725 camera sensor. */
+ gpiod_add_lookup_table(&ov7725_gpios);
+
i2c_register_board_info(0, ap325rxa_i2c_devices,
ARRAY_SIZE(ap325rxa_i2c_devices));
+ /* Initialize CEU platform device separately to map memory first */
+ device_initialize(&ap325rxa_ceu_device.dev);
+ arch_setup_pdev_archdata(&ap325rxa_ceu_device);
+ dma_declare_coherent_memory(&ap325rxa_ceu_device.dev,
+ ceu_dma_membase, ceu_dma_membase,
+ ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1,
+ DMA_MEMORY_EXCLUSIVE);
+
+ platform_device_add(&ap325rxa_ceu_device);
+
return platform_add_devices(ap325rxa_devices,
ARRAY_SIZE(ap325rxa_devices));
}
@@ -689,7 +551,21 @@ static int ap325rxa_mode_pins(void)
return MODE_PIN5 | MODE_PIN8;
}
+/* Reserve a portion of memory for CEU buffers */
+static void __init ap325rxa_mv_mem_reserve(void)
+{
+ phys_addr_t phys;
+ phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
+
+ phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+
+ ceu_dma_membase = phys;
+}
+
static struct sh_machine_vector mv_ap325rxa __initmv = {
.mv_name = "AP-325RXA",
.mv_mode_pins = ap325rxa_mode_pins,
+ .mv_mem_reserve = ap325rxa_mv_mem_reserve,
};
diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c
index 6af7777332fc..e59c577ed871 100644
--- a/arch/sh/boards/mach-kfr2r09/setup.c
+++ b/arch/sh/boards/mach-kfr2r09/setup.c
@@ -1,41 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* KFR2R09 board support code
*
* Copyright (C) 2009 Magnus Damm
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
*/
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/mmc/host.h>
-#include <linux/mfd/tmio.h>
-#include <linux/mtd/physmap.h>
-#include <linux/mtd/onenand.h>
+
+#include <asm/clock.h>
+#include <asm/io.h>
+#include <asm/machvec.h>
+#include <asm/suspend.h>
+
+#include <cpu/sh7724.h>
+
+#include <linux/clkdev.h>
#include <linux/delay.h>
-#include <linux/clk.h>
+#include <linux/dma-mapping.h>
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
#include <linux/input.h>
#include <linux/input/sh_keysc.h>
-#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/memblock.h>
+#include <linux/mfd/tmio.h>
+#include <linux/mmc/host.h>
+#include <linux/mtd/onenand.h>
+#include <linux/mtd/physmap.h>
#include <linux/platform_data/lv5207lp.h>
+#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
+#include <linux/sh_intc.h>
#include <linux/usb/r8a66597.h>
#include <linux/videodev2.h>
-#include <linux/sh_intc.h>
+
+#include <mach/kfr2r09.h>
+
+#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/rj54n1cb0c.h>
-#include <media/soc_camera.h>
-#include <media/drv-intf/sh_mobile_ceu.h>
+
#include <video/sh_mobile_lcdc.h>
-#include <asm/suspend.h>
-#include <asm/clock.h>
-#include <asm/machvec.h>
-#include <asm/io.h>
-#include <cpu/sh7724.h>
-#include <mach/kfr2r09.h>
+
+#define CEU_BUFFER_MEMORY_SIZE (4 << 20)
+static phys_addr_t ceu_dma_membase;
+
+/* set VIO_CKO clock to 25MHz */
+#define CEU_MCLK_FREQ 25000000
+#define DRVCRB 0xA405018C
static struct mtd_partition kfr2r09_nor_flash_partitions[] =
{
@@ -230,8 +242,17 @@ static struct platform_device kfr2r09_usb0_gadget_device = {
.resource = kfr2r09_usb0_gadget_resources,
};
-static struct sh_mobile_ceu_info sh_mobile_ceu_info = {
- .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+static struct ceu_platform_data ceu_pdata = {
+ .num_subdevs = 1,
+ .subdevs = {
+ { /* [0] = rj54n1cb0c */
+ .flags = 0,
+ .bus_width = 8,
+ .bus_shift = 0,
+ .i2c_adapter_id = 1,
+ .i2c_address = 0x50,
+ },
+ },
};
static struct resource kfr2r09_ceu_resources[] = {
@@ -246,109 +267,35 @@ static struct resource kfr2r09_ceu_resources[] = {
.end = evt2irq(0x880),
.flags = IORESOURCE_IRQ,
},
- [2] = {
- /* place holder for contiguous memory */
- },
};
static struct platform_device kfr2r09_ceu_device = {
- .name = "sh_mobile_ceu",
+ .name = "renesas-ceu",
.id = 0, /* "ceu0" clock */
.num_resources = ARRAY_SIZE(kfr2r09_ceu_resources),
.resource = kfr2r09_ceu_resources,
.dev = {
- .platform_data = &sh_mobile_ceu_info,
+ .platform_data = &ceu_pdata,
},
};
-static struct i2c_board_info kfr2r09_i2c_camera = {
- I2C_BOARD_INFO("rj54n1cb0c", 0x50),
-};
-
-static struct clk *camera_clk;
-
-/* set VIO_CKO clock to 25MHz */
-#define CEU_MCLK_FREQ 25000000
-
-#define DRVCRB 0xA405018C
-static int camera_power(struct device *dev, int mode)
-{
- int ret;
-
- if (mode) {
- long rate;
-
- camera_clk = clk_get(NULL, "video_clk");
- if (IS_ERR(camera_clk))
- return PTR_ERR(camera_clk);
-
- rate = clk_round_rate(camera_clk, CEU_MCLK_FREQ);
- ret = clk_set_rate(camera_clk, rate);
- if (ret < 0)
- goto eclkrate;
-
- /* set DRVCRB
- *
- * use 1.8 V for VccQ_VIO
- * use 2.85V for VccQ_SR
- */
- __raw_writew((__raw_readw(DRVCRB) & ~0x0003) | 0x0001, DRVCRB);
-
- /* reset clear */
- ret = gpio_request(GPIO_PTB4, NULL);
- if (ret < 0)
- goto eptb4;
- ret = gpio_request(GPIO_PTB7, NULL);
- if (ret < 0)
- goto eptb7;
-
- ret = gpio_direction_output(GPIO_PTB4, 1);
- if (!ret)
- ret = gpio_direction_output(GPIO_PTB7, 1);
- if (ret < 0)
- goto egpioout;
- msleep(1);
-
- ret = clk_enable(camera_clk); /* start VIO_CKO */
- if (ret < 0)
- goto eclkon;
-
- return 0;
- }
-
- ret = 0;
-
- clk_disable(camera_clk);
-eclkon:
- gpio_set_value(GPIO_PTB7, 0);
-egpioout:
- gpio_set_value(GPIO_PTB4, 0);
- gpio_free(GPIO_PTB7);
-eptb7:
- gpio_free(GPIO_PTB4);
-eptb4:
-eclkrate:
- clk_put(camera_clk);
- return ret;
-}
-
static struct rj54n1_pdata rj54n1_priv = {
.mclk_freq = CEU_MCLK_FREQ,
.ioctl_high = false,
};
-static struct soc_camera_link rj54n1_link = {
- .power = camera_power,
- .board_info = &kfr2r09_i2c_camera,
- .i2c_adapter_id = 1,
- .priv = &rj54n1_priv,
+static struct i2c_board_info kfr2r09_i2c_camera = {
+ I2C_BOARD_INFO("rj54n1cb0c", 0x50),
+ .platform_data = &rj54n1_priv,
};
-static struct platform_device kfr2r09_camera = {
- .name = "soc-camera-pdrv",
- .id = 0,
- .dev = {
- .platform_data = &rj54n1_link,
+static struct gpiod_lookup_table rj54n1_gpios = {
+ .dev_id = "1-0050",
+ .table = {
+ GPIO_LOOKUP("sh7724_pfc", GPIO_PTB4, "poweron",
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("sh7724_pfc", GPIO_PTB7, "enable",
+ GPIO_ACTIVE_HIGH),
},
};
@@ -393,8 +340,6 @@ static struct platform_device *kfr2r09_devices[] __initdata = {
&kfr2r09_nand_flash_device,
&kfr2r09_sh_keysc_device,
&kfr2r09_sh_lcdc_device,
- &kfr2r09_ceu_device,
- &kfr2r09_camera,
&kfr2r09_sh_sdhi0_device,
};
@@ -533,6 +478,8 @@ extern char kfr2r09_sdram_leave_end;
static int __init kfr2r09_devices_setup(void)
{
+ static struct clk *camera_clk;
+
/* register board specific self-refresh code */
sh_mobile_register_self_refresh(SUSP_SH_STANDBY | SUSP_SH_SF |
SUSP_SH_RSTANDBY,
@@ -622,8 +569,6 @@ static int __init kfr2r09_devices_setup(void)
gpio_request(GPIO_FN_VIO0_D1, NULL);
gpio_request(GPIO_FN_VIO0_D0, NULL);
- platform_resource_setup_memory(&kfr2r09_ceu_device, "ceu", 4 << 20);
-
/* SDHI0 connected to yc304 */
gpio_request(GPIO_FN_SDHI0CD, NULL);
gpio_request(GPIO_FN_SDHI0D3, NULL);
@@ -635,6 +580,36 @@ static int __init kfr2r09_devices_setup(void)
i2c_register_board_info(0, &kfr2r09_backlight_board_info, 1);
+ /* Set camera clock frequency and register and alias for rj54n1. */
+ camera_clk = clk_get(NULL, "video_clk");
+ if (!IS_ERR(camera_clk)) {
+ clk_set_rate(camera_clk,
+ clk_round_rate(camera_clk, CEU_MCLK_FREQ));
+ clk_put(camera_clk);
+ }
+ clk_add_alias(NULL, "1-0050", "video_clk", NULL);
+
+ /* set DRVCRB
+ *
+ * use 1.8 V for VccQ_VIO
+ * use 2.85V for VccQ_SR
+ */
+ __raw_writew((__raw_readw(DRVCRB) & ~0x0003) | 0x0001, DRVCRB);
+
+ gpiod_add_lookup_table(&rj54n1_gpios);
+
+ i2c_register_board_info(1, &kfr2r09_i2c_camera, 1);
+
+ /* Initialize CEU platform device separately to map memory first */
+ device_initialize(&kfr2r09_ceu_device.dev);
+ arch_setup_pdev_archdata(&kfr2r09_ceu_device);
+ dma_declare_coherent_memory(&kfr2r09_ceu_device.dev,
+ ceu_dma_membase, ceu_dma_membase,
+ ceu_dma_membase + CEU_BUFFER_MEMORY_SIZE - 1,
+ DMA_MEMORY_EXCLUSIVE);
+
+ platform_device_add(&kfr2r09_ceu_device);
+
return platform_add_devices(kfr2r09_devices,
ARRAY_SIZE(kfr2r09_devices));
}
@@ -651,10 +626,24 @@ static int kfr2r09_mode_pins(void)
return MODE_PIN0 | MODE_PIN1 | MODE_PIN5 | MODE_PIN8;
}
+/* Reserve a portion of memory for CEU buffers */
+static void __init kfr2r09_mv_mem_reserve(void)
+{
+ phys_addr_t phys;
+ phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
+
+ phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+
+ ceu_dma_membase = phys;
+}
+
/*
* The Machine Vector
*/
static struct sh_machine_vector mv_kfr2r09 __initmv = {
.mv_name = "kfr2r09",
.mv_mode_pins = kfr2r09_mode_pins,
+ .mv_mem_reserve = kfr2r09_mv_mem_reserve,
};
diff --git a/arch/sh/boards/mach-migor/setup.c b/arch/sh/boards/mach-migor/setup.c
index 3d7d0046cf49..254f2c662703 100644
--- a/arch/sh/boards/mach-migor/setup.c
+++ b/arch/sh/boards/mach-migor/setup.c
@@ -28,7 +28,6 @@
#include <video/sh_mobile_lcdc.h>
#include <media/drv-intf/renesas-ceu.h>
#include <media/i2c/ov772x.h>
-#include <media/soc_camera.h>
#include <media/i2c/tw9910.h>
#include <asm/clock.h>
#include <asm/machvec.h>
@@ -351,8 +350,9 @@ static struct platform_device migor_ceu_device = {
static struct gpiod_lookup_table ov7725_gpios = {
.dev_id = "0-0021",
.table = {
- GPIO_LOOKUP("sh7722_pfc", GPIO_PTT0, "pwdn", GPIO_ACTIVE_HIGH),
- GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "rstb", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("sh7722_pfc", GPIO_PTT0, "powerdown",
+ GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("sh7722_pfc", GPIO_PTT3, "reset", GPIO_ACTIVE_LOW),
},
};
@@ -592,7 +592,7 @@ static int __init migor_devices_setup(void)
}
/* Add a clock alias for ov7725 xclk source. */
- clk_add_alias("xclk", "0-0021", "video_clk", NULL);
+ clk_add_alias(NULL, "0-0021", "video_clk", NULL);
/* Register GPIOs for video sources. */
gpiod_add_lookup_table(&ov7725_gpios);
diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index 255952555656..fdbec22ae687 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -1,43 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* linux/arch/sh/boards/se/7724/setup.c
*
* Copyright (C) 2009 Renesas Solutions Corp.
*
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
*/
+#include <asm/clock.h>
+#include <asm/heartbeat.h>
+#include <asm/io.h>
+#include <asm/suspend.h>
-#include <linux/init.h>
+#include <cpu/sh7724.h>
+
+#include <linux/delay.h>
#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/input/sh_keysc.h>
#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/mmc/host.h>
+#include <linux/memblock.h>
#include <linux/mfd/tmio.h>
+#include <linux/mmc/host.h>
#include <linux/mtd/physmap.h>
-#include <linux/delay.h>
+#include <linux/platform_device.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
-#include <linux/smc91x.h>
-#include <linux/gpio.h>
-#include <linux/input.h>
-#include <linux/input/sh_keysc.h>
-#include <linux/usb/r8a66597.h>
#include <linux/sh_eth.h>
#include <linux/sh_intc.h>
+#include <linux/smc91x.h>
+#include <linux/usb/r8a66597.h>
#include <linux/videodev2.h>
-#include <video/sh_mobile_lcdc.h>
-#include <media/drv-intf/sh_mobile_ceu.h>
+
+#include <mach-se/mach/se7724.h>
+#include <media/drv-intf/renesas-ceu.h>
+
#include <sound/sh_fsi.h>
#include <sound/simple_card.h>
-#include <asm/io.h>
-#include <asm/heartbeat.h>
-#include <asm/clock.h>
-#include <asm/suspend.h>
-#include <cpu/sh7724.h>
-#include <mach-se/mach/se7724.h>
+
+#include <video/sh_mobile_lcdc.h>
+
+#define CEU_BUFFER_MEMORY_SIZE (4 << 20)
+static phys_addr_t ceu0_dma_membase;
+static phys_addr_t ceu1_dma_membase;
/*
* SWx 1234 5678
@@ -216,8 +222,8 @@ static struct platform_device lcdc_device = {
};
/* CEU0 */
-static struct sh_mobile_ceu_info sh_mobile_ceu0_info = {
- .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+static struct ceu_platform_data ceu0_pdata = {
+ .num_subdevs = 0,
};
static struct resource ceu0_resources[] = {
@@ -231,24 +237,21 @@ static struct resource ceu0_resources[] = {
.start = evt2irq(0x880),
.flags = IORESOURCE_IRQ,
},
- [2] = {
- /* place holder for contiguous memory */
- },
};
static struct platform_device ceu0_device = {
- .name = "sh_mobile_ceu",
- .id = 0, /* "ceu0" clock */
+ .name = "renesas-ceu",
+ .id = 0, /* "ceu.0" clock */
.num_resources = ARRAY_SIZE(ceu0_resources),
.resource = ceu0_resources,
.dev = {
- .platform_data = &sh_mobile_ceu0_info,
+ .platform_data = &ceu0_pdata,
},
};
/* CEU1 */
-static struct sh_mobile_ceu_info sh_mobile_ceu1_info = {
- .flags = SH_CEU_FLAG_USE_8BIT_BUS,
+static struct ceu_platform_data ceu1_pdata = {
+ .num_subdevs = 0,
};
static struct resource ceu1_resources[] = {
@@ -262,18 +265,15 @@ static struct resource ceu1_resources[] = {
.start = evt2irq(0x9e0),
.flags = IORESOURCE_IRQ,
},
- [2] = {
- /* place holder for contiguous memory */
- },
};
static struct platform_device ceu1_device = {
- .name = "sh_mobile_ceu",
- .id = 1, /* "ceu1" clock */
+ .name = "renesas-ceu",
+ .id = 1, /* "ceu.1" clock */
.num_resources = ARRAY_SIZE(ceu1_resources),
.resource = ceu1_resources,
.dev = {
- .platform_data = &sh_mobile_ceu1_info,
+ .platform_data = &ceu1_pdata,
},
};
@@ -574,13 +574,16 @@ static struct platform_device vou_device = {
},
};
+static struct platform_device *ms7724se_ceu_devices[] __initdata = {
+ &ceu0_device,
+ &ceu1_device,
+};
+
static struct platform_device *ms7724se_devices[] __initdata = {
&heartbeat_device,
&smc91x_eth_device,
&lcdc_device,
&nor_flash_device,
- &ceu0_device,
- &ceu1_device,
&keysc_device,
&sh_eth_device,
&sh7724_usb0_host_device,
@@ -797,7 +800,6 @@ static int __init devices_setup(void)
gpio_request(GPIO_FN_VIO0_CLK, NULL);
gpio_request(GPIO_FN_VIO0_FLD, NULL);
gpio_request(GPIO_FN_VIO0_HD, NULL);
- platform_resource_setup_memory(&ceu0_device, "ceu0", 4 << 20);
/* enable CEU1 */
gpio_request(GPIO_FN_VIO1_D7, NULL);
@@ -812,7 +814,6 @@ static int __init devices_setup(void)
gpio_request(GPIO_FN_VIO1_HD, NULL);
gpio_request(GPIO_FN_VIO1_VD, NULL);
gpio_request(GPIO_FN_VIO1_CLK, NULL);
- platform_resource_setup_memory(&ceu1_device, "ceu1", 4 << 20);
/* KEYSC */
gpio_request(GPIO_FN_KEYOUT5_IN5, NULL);
@@ -934,12 +935,49 @@ static int __init devices_setup(void)
gpio_request(GPIO_FN_DV_VSYNC, NULL);
gpio_request(GPIO_FN_DV_HSYNC, NULL);
+ /* Initialize CEU platform devices separately to map memory first */
+ device_initialize(&ms7724se_ceu_devices[0]->dev);
+ arch_setup_pdev_archdata(ms7724se_ceu_devices[0]);
+ dma_declare_coherent_memory(&ms7724se_ceu_devices[0]->dev,
+ ceu0_dma_membase, ceu0_dma_membase,
+ ceu0_dma_membase +
+ CEU_BUFFER_MEMORY_SIZE - 1,
+ DMA_MEMORY_EXCLUSIVE);
+ platform_device_add(ms7724se_ceu_devices[0]);
+
+ device_initialize(&ms7724se_ceu_devices[1]->dev);
+ arch_setup_pdev_archdata(ms7724se_ceu_devices[1]);
+ dma_declare_coherent_memory(&ms7724se_ceu_devices[1]->dev,
+ ceu1_dma_membase, ceu1_dma_membase,
+ ceu1_dma_membase +
+ CEU_BUFFER_MEMORY_SIZE - 1,
+ DMA_MEMORY_EXCLUSIVE);
+ platform_device_add(ms7724se_ceu_devices[1]);
+
return platform_add_devices(ms7724se_devices,
ARRAY_SIZE(ms7724se_devices));
}
device_initcall(devices_setup);
+/* Reserve a portion of memory for CEU 0 and CEU 1 buffers */
+static void __init ms7724se_mv_mem_reserve(void)
+{
+ phys_addr_t phys;
+ phys_addr_t size = CEU_BUFFER_MEMORY_SIZE;
+
+ phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+ ceu0_dma_membase = phys;
+
+ phys = memblock_alloc_base(size, PAGE_SIZE, MEMBLOCK_ALLOC_ANYWHERE);
+ memblock_free(phys, size);
+ memblock_remove(phys, size);
+ ceu1_dma_membase = phys;
+}
+
static struct sh_machine_vector mv_ms7724se __initmv = {
.mv_name = "ms7724se",
.mv_init_irq = init_se7724_IRQ,
+ .mv_mem_reserve = ms7724se_mv_mem_reserve,
};
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 46dd82ab2c29..6a5609a55965 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -2,6 +2,7 @@ generic-y += compat.h
generic-y += current.h
generic-y += delay.h
generic-y += div64.h
+generic-y += dma-mapping.h
generic-y += emergency-restart.h
generic-y += exec.h
generic-y += irq_regs.h
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index 0fd0099f43cc..f37b95a80232 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -32,44 +32,9 @@
#include <asm/atomic-irq.h>
#endif
-#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0)
-#define atomic_dec_return(v) atomic_sub_return(1, (v))
-#define atomic_inc_return(v) atomic_add_return(1, (v))
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0)
-#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
-
-#define atomic_inc(v) atomic_add(1, (v))
-#define atomic_dec(v) atomic_sub(1, (v))
-
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
-/**
- * __atomic_add_unless - add unless the number is a given value
- * @v: pointer of type atomic_t
- * @a: the amount to add to v...
- * @u: ...unless v is equal to u.
- *
- * Atomically adds @a to @v, so long as it was not @u.
- * Returns the old value of @v.
- */
-static inline int __atomic_add_unless(atomic_t *v, int a, int u)
-{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
-
- return c;
-}
-
#endif /* CONFIG_CPU_J2 */
#endif /* __ASM_SH_ATOMIC_H */
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index d103ab5a4e4b..b932e42ef028 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -101,5 +101,12 @@ void kunmap_coherent(void *kvaddr);
void cpu_cache_init(void);
+static inline void *sh_cacheop_vaddr(void *vaddr)
+{
+ if (__in_29bit_mode())
+ vaddr = (void *)CAC_ADDR((unsigned long)vaddr);
+ return vaddr;
+}
+
#endif /* __KERNEL__ */
#endif /* __ASM_SH_CACHEFLUSH_H */
diff --git a/arch/sh/include/asm/cmpxchg-xchg.h b/arch/sh/include/asm/cmpxchg-xchg.h
index 1e881f5db659..593a9704782b 100644
--- a/arch/sh/include/asm/cmpxchg-xchg.h
+++ b/arch/sh/include/asm/cmpxchg-xchg.h
@@ -8,7 +8,8 @@
* This work is licensed under the terms of the GNU GPL, version 2. See the
* file "COPYING" in the main directory of this archive for more details.
*/
-#include <linux/bitops.h>
+#include <linux/bits.h>
+#include <linux/compiler.h>
#include <asm/byteorder.h>
/*
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
deleted file mode 100644
index 41167931e5d9..000000000000
--- a/arch/sh/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_SH_DMA_MAPPING_H
-#define __ASM_SH_DMA_MAPPING_H
-
-extern const struct dma_map_ops *dma_ops;
-extern void no_iommu_init(void);
-
-static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
-{
- return dma_ops;
-}
-
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_addr, gfp_t flag,
- unsigned long attrs);
-extern void dma_generic_free_coherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle,
- unsigned long attrs);
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
- enum dma_data_direction dir);
-
-#endif /* __ASM_SH_DMA_MAPPING_H */
diff --git a/arch/sh/include/asm/hw_breakpoint.h b/arch/sh/include/asm/hw_breakpoint.h
index 7431c172c0cb..199d17b765f2 100644
--- a/arch/sh/include/asm/hw_breakpoint.h
+++ b/arch/sh/include/asm/hw_breakpoint.h
@@ -10,7 +10,6 @@
#include <linux/types.h>
struct arch_hw_breakpoint {
- char *name; /* Contains name of the symbol to set bkpt */
unsigned long address;
u16 len;
u16 type;
@@ -41,6 +40,7 @@ struct sh_ubc {
struct clk *clk; /* optional interface clock / MSTP bit */
};
+struct perf_event_attr;
struct perf_event;
struct task_struct;
struct pmu;
@@ -54,8 +54,10 @@ static inline int hw_breakpoint_slots(int type)
}
/* arch/sh/kernel/hw_breakpoint.c */
-extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
-extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
+extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
+extern int hw_breakpoint_arch_parse(struct perf_event *bp,
+ const struct perf_event_attr *attr,
+ struct arch_hw_breakpoint *hw);
extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
unsigned long val, void *data);
diff --git a/arch/sh/include/asm/kprobes.h b/arch/sh/include/asm/kprobes.h
index 85d8bcaa8493..6171682f7798 100644
--- a/arch/sh/include/asm/kprobes.h
+++ b/arch/sh/include/asm/kprobes.h
@@ -27,7 +27,6 @@ struct kprobe;
void arch_remove_kprobe(struct kprobe *);
void kretprobe_trampoline(void);
-void jprobe_return_end(void);
/* Architecture specific copy of original instruction*/
struct arch_specific_insn {
@@ -43,9 +42,6 @@ struct prev_kprobe {
/* per-cpu kprobe control block */
struct kprobe_ctlblk {
unsigned long kprobe_status;
- unsigned long jprobe_saved_r15;
- struct pt_regs jprobe_saved_regs;
- kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
struct prev_kprobe prev_kprobe;
};
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index dc80041f7363..59673f8a3379 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -12,7 +12,7 @@ endif
CFLAGS_REMOVE_return_address.o = -pg
-obj-y := debugtraps.o dma-nommu.o dumpstack.o \
+obj-y := debugtraps.o dumpstack.o \
idle.o io.o irq.o irq_$(BITS).o kdebugfs.o \
machvec.o nmi_debug.o process.o \
process_$(BITS).o ptrace.o ptrace_$(BITS).o \
@@ -45,7 +45,7 @@ obj-$(CONFIG_DUMP_CODE) += disassemble.o
obj-$(CONFIG_HIBERNATION) += swsusp.o
obj-$(CONFIG_DWARF_UNWINDER) += dwarf.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_callchain.o
-
+obj-$(CONFIG_DMA_NONCOHERENT) += dma-coherent.o
obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
ccflags-y := -Werror
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
index fe844222f3f6..af01664f7b4c 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c
@@ -260,7 +260,7 @@ static struct clk_lookup lookups[] = {
CLKDEV_CON_ID("veu1", &mstp_clks[HWBLK_VEU2H1]),
CLKDEV_DEV_ID("sh-vou.0", &mstp_clks[HWBLK_VOU]),
CLKDEV_CON_ID("beu0", &mstp_clks[HWBLK_BEU]),
- CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[HWBLK_CEU]),
+ CLKDEV_DEV_ID("ceu.0", &mstp_clks[HWBLK_CEU]),
CLKDEV_CON_ID("veu0", &mstp_clks[HWBLK_VEU2H0]),
CLKDEV_CON_ID("vpu0", &mstp_clks[HWBLK_VPU]),
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c
new file mode 100644
index 000000000000..a0021eef956b
--- /dev/null
+++ b/arch/sh/kernel/dma-coherent.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2004 - 2007 Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/dma-noncoherent.h>
+#include <linux/module.h>
+#include <asm/cacheflush.h>
+#include <asm/addrspace.h>
+
+void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+ gfp_t gfp, unsigned long attrs)
+{
+ void *ret, *ret_nocache;
+ int order = get_order(size);
+
+ gfp |= __GFP_ZERO;
+
+ ret = (void *)__get_free_pages(gfp, order);
+ if (!ret)
+ return NULL;
+
+ /*
+ * Pages from the page allocator may have data present in
+ * cache. So flush the cache before using uncached memory.
+ */
+ arch_sync_dma_for_device(dev, virt_to_phys(ret), size,
+ DMA_BIDIRECTIONAL);
+
+ ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
+ if (!ret_nocache) {
+ free_pages((unsigned long)ret, order);
+ return NULL;
+ }
+
+ split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
+
+ *dma_handle = virt_to_phys(ret);
+ if (!WARN_ON(!dev))
+ *dma_handle -= PFN_PHYS(dev->dma_pfn_offset);
+
+ return ret_nocache;
+}
+
+void arch_dma_free(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle, unsigned long attrs)
+{
+ int order = get_order(size);
+ unsigned long pfn = (dma_handle >> PAGE_SHIFT);
+ int k;
+
+ if (!WARN_ON(!dev))
+ pfn += dev->dma_pfn_offset;
+
+ for (k = 0; k < (1 << order); k++)
+ __free_pages(pfn_to_page(pfn + k), 0);
+
+ iounmap(vaddr);
+}
+
+void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr,
+ size_t size, enum dma_data_direction dir)
+{
+ void *addr = sh_cacheop_vaddr(phys_to_virt(paddr));
+
+ switch (dir) {
+ case DMA_FROM_DEVICE: /* invalidate only */
+ __flush_invalidate_region(addr, size);
+ break;
+ case DMA_TO_DEVICE: /* writeback only */
+ __flush_wback_region(addr, size);
+ break;
+ case DMA_BIDIRECTIONAL: /* writeback and invalidate */
+ __flush_purge_region(addr, size);
+ break;
+ default:
+ BUG();
+ }
+}
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
deleted file mode 100644
index 3e3a32fc676e..000000000000
--- a/arch/sh/kernel/dma-nommu.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * DMA mapping support for platforms lacking IOMMUs.
- *
- * Copyright (C) 2009 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <asm/cacheflush.h>
-
-static dma_addr_t nommu_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction dir,
- unsigned long attrs)
-{
- dma_addr_t addr = page_to_phys(page) + offset
- - PFN_PHYS(dev->dma_pfn_offset);
-
- WARN_ON(size == 0);
-
- if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
- sh_sync_dma_for_device(page_address(page) + offset, size, dir);
-
- return addr;
-}
-
-static int nommu_map_sg(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction dir,
- unsigned long attrs)
-{
- struct scatterlist *s;
- int i;
-
- WARN_ON(nents == 0 || sg[0].length == 0);
-
- for_each_sg(sg, s, nents, i) {
- dma_addr_t offset = PFN_PHYS(dev->dma_pfn_offset);
-
- BUG_ON(!sg_page(s));
-
- if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC))
- sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-
- s->dma_address = sg_phys(s) - offset;
- s->dma_length = s->length;
- }
-
- return nents;
-}
-
-#ifdef CONFIG_DMA_NONCOHERENT
-static void nommu_sync_single_for_device(struct device *dev, dma_addr_t addr,
- size_t size, enum dma_data_direction dir)
-{
- sh_sync_dma_for_device(phys_to_virt(addr), size, dir);
-}
-
-static void nommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- struct scatterlist *s;
- int i;
-
- for_each_sg(sg, s, nelems, i)
- sh_sync_dma_for_device(sg_virt(s), s->length, dir);
-}
-#endif
-
-const struct dma_map_ops nommu_dma_ops = {
- .alloc = dma_generic_alloc_coherent,
- .free = dma_generic_free_coherent,
- .map_page = nommu_map_page,
- .map_sg = nommu_map_sg,
-#ifdef CONFIG_DMA_NONCOHERENT
- .sync_single_for_device = nommu_sync_single_for_device,
- .sync_sg_for_device = nommu_sync_sg_for_device,
-#endif
-};
-
-void __init no_iommu_init(void)
-{
- if (dma_ops)
- return;
- dma_ops = &nommu_dma_ops;
-}
diff --git a/arch/sh/kernel/hw_breakpoint.c b/arch/sh/kernel/hw_breakpoint.c
index 8648ed05ccf0..d9ff3b42da7c 100644
--- a/arch/sh/kernel/hw_breakpoint.c
+++ b/arch/sh/kernel/hw_breakpoint.c
@@ -124,14 +124,13 @@ static int get_hbp_len(u16 hbp_len)
/*
* Check for virtual address in kernel space.
*/
-int arch_check_bp_in_kernelspace(struct perf_event *bp)
+int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw)
{
unsigned int len;
unsigned long va;
- struct arch_hw_breakpoint *info = counter_arch_bp(bp);
- va = info->address;
- len = get_hbp_len(info->len);
+ va = hw->address;
+ len = get_hbp_len(hw->len);
return (va >= TASK_SIZE) && ((va + len - 1) >= TASK_SIZE);
}
@@ -174,40 +173,40 @@ int arch_bp_generic_fields(int sh_len, int sh_type,
return 0;
}
-static int arch_build_bp_info(struct perf_event *bp)
+static int arch_build_bp_info(struct perf_event *bp,
+ const struct perf_event_attr *attr,
+ struct arch_hw_breakpoint *hw)
{
- struct arch_hw_breakpoint *info = counter_arch_bp(bp);
-
- info->address = bp->attr.bp_addr;
+ hw->address = attr->bp_addr;
/* Len */
- switch (bp->attr.bp_len) {
+ switch (attr->bp_len) {
case HW_BREAKPOINT_LEN_1:
- info->len = SH_BREAKPOINT_LEN_1;
+ hw->len = SH_BREAKPOINT_LEN_1;
break;
case HW_BREAKPOINT_LEN_2:
- info->len = SH_BREAKPOINT_LEN_2;
+ hw->len = SH_BREAKPOINT_LEN_2;
break;
case HW_BREAKPOINT_LEN_4:
- info->len = SH_BREAKPOINT_LEN_4;
+ hw->len = SH_BREAKPOINT_LEN_4;
break;
case HW_BREAKPOINT_LEN_8:
- info->len = SH_BREAKPOINT_LEN_8;
+ hw->len = SH_BREAKPOINT_LEN_8;
break;
default:
return -EINVAL;
}
/* Type */
- switch (bp->attr.bp_type) {
+ switch (attr->bp_type) {
case HW_BREAKPOINT_R:
- info->type = SH_BREAKPOINT_READ;
+ hw->type = SH_BREAKPOINT_READ;
break;
case HW_BREAKPOINT_W:
- info->type = SH_BREAKPOINT_WRITE;
+ hw->type = SH_BREAKPOINT_WRITE;
break;
case HW_BREAKPOINT_W | HW_BREAKPOINT_R:
- info->type = SH_BREAKPOINT_RW;
+ hw->type = SH_BREAKPOINT_RW;
break;
default:
return -EINVAL;
@@ -219,19 +218,20 @@ static int arch_build_bp_info(struct perf_event *bp)
/*
* Validate the arch-specific HW Breakpoint register settings
*/
-int arch_validate_hwbkpt_settings(struct perf_event *bp)
+int hw_breakpoint_arch_parse(struct perf_event *bp,
+ const struct perf_event_attr *attr,
+ struct arch_hw_breakpoint *hw)
{
- struct arch_hw_breakpoint *info = counter_arch_bp(bp);
unsigned int align;
int ret;
- ret = arch_build_bp_info(bp);
+ ret = arch_build_bp_info(bp, attr, hw);
if (ret)
return ret;
ret = -EINVAL;
- switch (info->len) {
+ switch (hw->len) {
case SH_BREAKPOINT_LEN_1:
align = 0;
break;
@@ -249,17 +249,10 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
}
/*
- * For kernel-addresses, either the address or symbol name can be
- * specified.
- */
- if (info->name)
- info->address = (unsigned long)kallsyms_lookup_name(info->name);
-
- /*
* Check that the low-order bits of the address are appropriate
* for the alignment implied by len.
*/
- if (info->address & align)
+ if (hw->address & align)
return -EINVAL;
return 0;
@@ -346,7 +339,7 @@ static int __kprobes hw_breakpoint_handler(struct die_args *args)
perf_bp_event(bp, args->regs);
/* Deliver the signal to userspace */
- if (!arch_check_bp_in_kernelspace(bp)) {
+ if (!arch_check_bp_in_kernelspace(&bp->hw.info)) {
force_sig_fault(SIGTRAP, TRAP_HWBKPT,
(void __user *)NULL, current);
}
diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c
index 52a5e11247d1..241e903dd3ee 100644
--- a/arch/sh/kernel/kprobes.c
+++ b/arch/sh/kernel/kprobes.c
@@ -248,11 +248,6 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
prepare_singlestep(p, regs);
kcb->kprobe_status = KPROBE_REENTER;
return 1;
- } else {
- p = __this_cpu_read(current_kprobe);
- if (p->break_handler && p->break_handler(p, regs)) {
- goto ss_probe;
- }
}
goto no_kprobe;
}
@@ -277,11 +272,13 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
set_current_kprobe(p, regs, kcb);
kcb->kprobe_status = KPROBE_HIT_ACTIVE;
- if (p->pre_handler && p->pre_handler(p, regs))
+ if (p->pre_handler && p->pre_handler(p, regs)) {
/* handler has already set things up, so skip ss setup */
+ reset_current_kprobe();
+ preempt_enable_no_resched();
return 1;
+ }
-ss_probe:
prepare_singlestep(p, regs);
kcb->kprobe_status = KPROBE_HIT_SS;
return 1;
@@ -358,8 +355,6 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
regs->pc = orig_ret_address;
kretprobe_hash_unlock(current, &flags);
- preempt_enable_no_resched();
-
hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) {
hlist_del(&ri->hlist);
kfree(ri);
@@ -508,14 +503,8 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
if (post_kprobe_handler(args->regs))
ret = NOTIFY_STOP;
} else {
- if (kprobe_handler(args->regs)) {
+ if (kprobe_handler(args->regs))
ret = NOTIFY_STOP;
- } else {
- p = __this_cpu_read(current_kprobe);
- if (p->break_handler &&
- p->break_handler(p, args->regs))
- ret = NOTIFY_STOP;
- }
}
}
}
@@ -523,57 +512,6 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
return ret;
}
-int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
-{
- struct jprobe *jp = container_of(p, struct jprobe, kp);
- unsigned long addr;
- struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-
- kcb->jprobe_saved_regs = *regs;
- kcb->jprobe_saved_r15 = regs->regs[15];
- addr = kcb->jprobe_saved_r15;
-
- /*
- * TBD: As Linus pointed out, gcc assumes that the callee
- * owns the argument space and could overwrite it, e.g.
- * tailcall optimization. So, to be absolutely safe
- * we also save and restore enough stack bytes to cover
- * the argument area.
- */
- memcpy(kcb->jprobes_stack, (kprobe_opcode_t *) addr,
- MIN_STACK_SIZE(addr));
-
- regs->pc = (unsigned long)(jp->entry);
-
- return 1;
-}
-
-void __kprobes jprobe_return(void)
-{
- asm volatile ("trapa #0x3a\n\t" "jprobe_return_end:\n\t" "nop\n\t");
-}
-
-int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
-{
- struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
- unsigned long stack_addr = kcb->jprobe_saved_r15;
- u8 *addr = (u8 *)regs->pc;
-
- if ((addr >= (u8 *)jprobe_return) &&
- (addr <= (u8 *)jprobe_return_end)) {
- *regs = kcb->jprobe_saved_regs;
-
- memcpy((kprobe_opcode_t *)stack_addr, kcb->jprobes_stack,
- MIN_STACK_SIZE(stack_addr));
-
- kcb->kprobe_status = KPROBE_HIT_SS;
- preempt_enable_no_resched();
- return 1;
- }
-
- return 0;
-}
-
static struct kprobe trampoline_p = {
.addr = (kprobe_opcode_t *)&kretprobe_trampoline,
.pre_handler = trampoline_probe_handler
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index 50cdd1349015..02ed2df25a54 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -225,8 +225,6 @@ config HUGETLB_PAGE_SIZE_512MB
endchoice
-source "mm/Kconfig"
-
config SCHED_MC
bool "Multi-core scheduler support"
depends on SMP
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c
index fceb2adfcac7..792f36129062 100644
--- a/arch/sh/mm/consistent.c
+++ b/arch/sh/mm/consistent.c
@@ -1,10 +1,6 @@
/*
- * arch/sh/mm/consistent.c
- *
* Copyright (C) 2004 - 2007 Paul Mundt
*
- * Declared coherent memory functions based on arch/x86/kernel/pci-dma_32.c
- *
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
@@ -13,90 +9,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
-#include <linux/dma-debug.h>
#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/gfp.h>
-#include <asm/cacheflush.h>
-#include <asm/addrspace.h>
-
-const struct dma_map_ops *dma_ops;
-EXPORT_SYMBOL(dma_ops);
-
-void *dma_generic_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t gfp,
- unsigned long attrs)
-{
- void *ret, *ret_nocache;
- int order = get_order(size);
-
- gfp |= __GFP_ZERO;
-
- ret = (void *)__get_free_pages(gfp, order);
- if (!ret)
- return NULL;
-
- /*
- * Pages from the page allocator may have data present in
- * cache. So flush the cache before using uncached memory.
- */
- sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL);
-
- ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size);
- if (!ret_nocache) {
- free_pages((unsigned long)ret, order);
- return NULL;
- }
-
- split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order);
-
- *dma_handle = virt_to_phys(ret);
- if (!WARN_ON(!dev))
- *dma_handle -= PFN_PHYS(dev->dma_pfn_offset);
-
- return ret_nocache;
-}
-
-void dma_generic_free_coherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle,
- unsigned long attrs)
-{
- int order = get_order(size);
- unsigned long pfn = dma_handle >> PAGE_SHIFT;
- int k;
-
- if (!WARN_ON(!dev))
- pfn += dev->dma_pfn_offset;
-
- for (k = 0; k < (1 << order); k++)
- __free_pages(pfn_to_page(pfn + k), 0);
-
- iounmap(vaddr);
-}
-
-void sh_sync_dma_for_device(void *vaddr, size_t size,
- enum dma_data_direction direction)
-{
- void *addr;
-
- addr = __in_29bit_mode() ?
- (void *)CAC_ADDR((unsigned long)vaddr) : vaddr;
-
- switch (direction) {
- case DMA_FROM_DEVICE: /* invalidate only */
- __flush_invalidate_region(addr, size);
- break;
- case DMA_TO_DEVICE: /* writeback only */
- __flush_wback_region(addr, size);
- break;
- case DMA_BIDIRECTIONAL: /* writeback and invalidate */
- __flush_purge_region(addr, size);
- break;
- default:
- BUG();
- }
-}
-EXPORT_SYMBOL(sh_sync_dma_for_device);
static int __init memchunk_setup(char *str)
{
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 4034035fbede..7713c084d040 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -339,22 +339,12 @@ void __init paging_init(void)
free_area_init_nodes(max_zone_pfns);
}
-/*
- * Early initialization for any I/O MMUs we might have.
- */
-static void __init iommu_init(void)
-{
- no_iommu_init();
-}
-
unsigned int mem_init_done = 0;
void __init mem_init(void)
{
pg_data_t *pgdat;
- iommu_init();
-
high_memory = NULL;
for_each_online_pgdat(pgdat)
high_memory = max_t(void *, high_memory,
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-12 23:09:07 +0300