Module Name: src
Committed By: jmcneill
Date: Thu Jan 3 11:01:59 UTC 2019
Modified Files:
src/sys/arch/arm/sunxi: files.sunxi sunxi_platform.c
Added Files:
src/sys/arch/arm/sunxi: sunxi_mc_mpstart.S sunxi_mc_smp.c
sunxi_mc_smp.h
Log Message:
Add Allwinner A83T SMP support.
To generate a diff of this commit:
cvs rdiff -u -r1.57 -r1.58 src/sys/arch/arm/sunxi/files.sunxi
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/sunxi/sunxi_mc_mpstart.S \
src/sys/arch/arm/sunxi/sunxi_mc_smp.c \
src/sys/arch/arm/sunxi/sunxi_mc_smp.h
cvs rdiff -u -r1.31 -r1.32 src/sys/arch/arm/sunxi/sunxi_platform.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/sunxi/files.sunxi
diff -u src/sys/arch/arm/sunxi/files.sunxi:1.57 src/sys/arch/arm/sunxi/files.sunxi:1.58
--- src/sys/arch/arm/sunxi/files.sunxi:1.57 Fri Jun 1 22:11:54 2018
+++ src/sys/arch/arm/sunxi/files.sunxi Thu Jan 3 11:01:59 2019
@@ -1,4 +1,4 @@
-# $NetBSD: files.sunxi,v 1.57 2018/06/01 22:11:54 jmcneill Exp $
+# $NetBSD: files.sunxi,v 1.58 2019/01/03 11:01:59 jmcneill Exp $
#
# Configuration info for Allwinner sunxi family SoCs
#
@@ -6,6 +6,9 @@
file arch/arm/sunxi/sunxi_platform.c soc_sunxi
+file arch/arm/sunxi/sunxi_mc_smp.c soc_sunxi_mc
+file arch/arm/sunxi/sunxi_mc_mpstart.S soc_sunxi_mc
+
# CCU
define sunxi_ccu
file arch/arm/sunxi/sunxi_ccu.c sunxi_ccu
@@ -293,8 +296,10 @@ file arch/arm/sunxi/sunxi_can.c sunxi_c
device sunxilradc
attach sunxilradc at fdt with sunxi_lradc
file arch/arm/sunxi/sunxi_lradc.c sunxi_lradc
+
# SOC parameters
defflag opt_soc.h SOC_SUNXI
+defflag opt_soc.h SOC_SUNXI_MC
defflag opt_soc.h SOC_SUN4I: SOC_SUNXI
defflag opt_soc.h SOC_SUN4I_A10: SOC_SUN4I
defflag opt_soc.h SOC_SUN5I: SOC_SUNXI
@@ -304,7 +309,7 @@ defflag opt_soc.h SOC_SUN6I_A31: SOC_S
defflag opt_soc.h SOC_SUN7I: SOC_SUNXI
defflag opt_soc.h SOC_SUN7I_A20: SOC_SUN7I
defflag opt_soc.h SOC_SUN8I: SOC_SUNXI
-defflag opt_soc.h SOC_SUN8I_A83T: SOC_SUN8I
+defflag opt_soc.h SOC_SUN8I_A83T: SOC_SUN8I, SOC_SUNXI_MC
defflag opt_soc.h SOC_SUN8I_H3: SOC_SUN8I
defflag opt_soc.h SOC_SUN9I: SOC_SUNXI
defflag opt_soc.h SOC_SUN9I_A80: SOC_SUN9I
Index: src/sys/arch/arm/sunxi/sunxi_platform.c
diff -u src/sys/arch/arm/sunxi/sunxi_platform.c:1.31 src/sys/arch/arm/sunxi/sunxi_platform.c:1.32
--- src/sys/arch/arm/sunxi/sunxi_platform.c:1.31 Tue Oct 30 16:41:52 2018
+++ src/sys/arch/arm/sunxi/sunxi_platform.c Thu Jan 3 11:01:59 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_platform.c,v 1.31 2018/10/30 16:41:52 skrll Exp $ */
+/* $NetBSD: sunxi_platform.c,v 1.32 2019/01/03 11:01:59 jmcneill Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <[email protected]>
@@ -31,7 +31,7 @@
#include "opt_console.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_platform.c,v 1.31 2018/10/30 16:41:52 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_platform.c,v 1.32 2019/01/03 11:01:59 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -58,6 +58,10 @@ __KERNEL_RCSID(0, "$NetBSD: sunxi_platfo
#include <arm/sunxi/sunxi_platform.h>
+#if defined(SOC_SUNXI_MC)
+#include <arm/sunxi/sunxi_mc_smp.h>
+#endif
+
#include <libfdt.h>
#define SUNXI_REF_FREQ 24000000
@@ -123,6 +127,26 @@ sunxi_platform_devmap(void)
return devmap;
}
+#define SUN8I_A83T_CPU_VBASE (SUNXI_CORE_VBASE + SUNXI_CORE_SIZE)
+#define SUN8I_A83T_CPU_PBASE 0x01700000
+#define SUN8I_A83T_CPU_SIZE 0x00100000
+
+static const struct pmap_devmap *
+sun8i_a83t_platform_devmap(void)
+{
+ static const struct pmap_devmap devmap[] = {
+ DEVMAP_ENTRY(SUNXI_CORE_VBASE,
+ SUNXI_CORE_PBASE,
+ SUNXI_CORE_SIZE),
+ DEVMAP_ENTRY(SUN8I_A83T_CPU_VBASE,
+ SUN8I_A83T_CPU_PBASE,
+ SUN8I_A83T_CPU_SIZE),
+ DEVMAP_ENTRY_END
+ };
+
+ return devmap;
+}
+
static void
sunxi_platform_init_attach_args(struct fdt_attach_args *faa)
{
@@ -211,6 +235,55 @@ sunxi_platform_bootstrap(void)
}
}
+static void
+sunxi_mc_platform_mpstart(void)
+{
+ uint32_t started = 0;
+
+#if defined(MULTIPROCESSOR) && defined(SOC_SUNXI_MC)
+ const char *method;
+ uint64_t mpidr, bp_mpidr;
+ u_int cpuindex;
+ int child;
+
+ const int cpus = OF_finddevice("/cpus");
+ if (cpus == -1)
+ return;
+
+ /* MPIDR affinity levels of boot processor. */
+ bp_mpidr = cpu_mpidr_aff_read();
+
+ cpuindex = 1;
+ for (child = OF_child(cpus); child; child = OF_peer(child)) {
+ if (fdtbus_get_reg64(child, 0, &mpidr, NULL) != 0)
+ continue;
+ if (mpidr == bp_mpidr)
+ continue;
+
+ method = fdtbus_get_string(child, "enable-method");
+ if (method == NULL)
+ method = fdtbus_get_string(cpus, "enable-method");
+ if (method == NULL)
+ continue;
+
+ if (sunxi_mc_smp_match(method) != 0) {
+ if (sunxi_mc_smp_enable(mpidr) != 0)
+ continue;
+
+ started |= __BIT(cpuindex);
+ cpuindex++;
+ for (u_int i = 0x100000; i > 0; i--) {
+ membar_consumer();
+ if (arm_cpu_hatched & __BIT(cpuindex))
+ break;
+ }
+ }
+ }
+#endif
+
+ if (started == 0)
+ arm_fdt_cpu_mpstart();
+}
static void
sun4i_platform_reset(void)
@@ -360,7 +433,19 @@ static const struct arm_platform sun8i_p
ARM_PLATFORM(sun8i_h2plus, "allwinner,sun8i-h2-plus", &sun8i_platform);
ARM_PLATFORM(sun8i_h3, "allwinner,sun8i-h3", &sun8i_platform);
-ARM_PLATFORM(sun8i_a83t, "allwinner,sun8i-a83t", &sun8i_platform);
+
+static const struct arm_platform sun8i_a83t_platform = {
+ .ap_devmap = sun8i_a83t_platform_devmap,
+ .ap_bootstrap = sunxi_platform_bootstrap,
+ .ap_init_attach_args = sunxi_platform_init_attach_args,
+ .ap_device_register = sunxi_platform_device_register,
+ .ap_reset = sun6i_platform_reset,
+ .ap_delay = gtmr_delay,
+ .ap_uart_freq = sunxi_platform_uart_freq,
+ .ap_mpstart = sunxi_mc_platform_mpstart,
+};
+
+ARM_PLATFORM(sun8i_a83t, "allwinner,sun8i-a83t", &sun8i_a83t_platform);
static const struct arm_platform sun9i_platform = {
.ap_devmap = sunxi_platform_devmap,
Added files:
Index: src/sys/arch/arm/sunxi/sunxi_mc_mpstart.S
diff -u /dev/null src/sys/arch/arm/sunxi/sunxi_mc_mpstart.S:1.1
--- /dev/null Thu Jan 3 11:01:59 2019
+++ src/sys/arch/arm/sunxi/sunxi_mc_mpstart.S Thu Jan 3 11:01:59 2019
@@ -0,0 +1,82 @@
+/* $NetBSD: sunxi_mc_mpstart.S,v 1.1 2019/01/03 11:01:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2018 Jared McNeill <[email protected]>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+#include <arm/asm.h>
+#include <arm/armreg.h>
+#include "assym.h"
+
+#define CCI_SNOOP_CTRL 0x000
+#define CCI_SNOOP_CTRL_DVM __BIT(1)
+#define CCI_SNOOP_CTRL_SNOOP __BIT(0)
+
+ R_TMP1 .req r8
+ R_VTOPDIFF .req r10
+
+ .global _C_LABEL(sunxi_mc_mpstart)
+_C_LABEL(sunxi_mc_mpstart):
+
+ adr R_TMP1, sunxi_mc_mpstart
+ ldr R_VTOPDIFF, =sunxi_mc_mpstart
+ sub R_VTOPDIFF, R_VTOPDIFF, R_TMP1
+
+ mrc p15, 0, r4, c0, c0, 5 // MPIDR get
+ and r4, #(MPIDR_AFF2|MPIDR_AFF1|MPIDR_AFF0)
+
+ mov r0, #0
+ ldr r1, =cpu_mpidr
+ sub r1, R_VTOPDIFF
+1:
+
+ ldr r2, [r1, r0, lsl #2] // r2 = cpu_mpidr[r0]
+ cmp r2, r4
+ beq 2f // found our mpidr
+
+ add r0, #1
+ cmp r0, #MAXCPUS
+ bne 1b
+
+ // Not found our mpidr in the list - use Aff0 for cpuindex
+ and r0, r4, #7
+2:
+
+ // Find our CCI-400 interface's base address by cpuindex
+ ldr r1, =sunxi_mc_cci_port
+ sub r1, R_VTOPDIFF
+ ldr r2, [r1, r0, lsl #2] // r2 = sunxi_mc_cci_port[r0]
+
+ cmp r2, #0
+ beq 3f
+
+ // Enable snooping and DVM broadcast on our CCI-400 interface
+ mov r3, #(CCI_SNOOP_CTRL_DVM|CCI_SNOOP_CTRL_SNOOP)
+ str r3, [r2, #CCI_SNOOP_CTRL]
+
+3:
+ b cpu_mpstart
Index: src/sys/arch/arm/sunxi/sunxi_mc_smp.c
diff -u /dev/null src/sys/arch/arm/sunxi/sunxi_mc_smp.c:1.1
--- /dev/null Thu Jan 3 11:01:59 2019
+++ src/sys/arch/arm/sunxi/sunxi_mc_smp.c Thu Jan 3 11:01:59 2019
@@ -0,0 +1,209 @@
+/* $NetBSD: sunxi_mc_smp.c,v 1.1 2019/01/03 11:01:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2019 Jared McNeill <[email protected]>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mc_smp.c,v 1.1 2019/01/03 11:01:59 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#include <arm/armreg.h>
+#include <arm/cpu.h>
+#include <arm/cpufunc.h>
+#include <arm/locore.h>
+
+#include <arm/sunxi/sunxi_mc_smp.h>
+
+#define A83T_SMP_ENABLE_METHOD "allwinner,sun8i-a83t-smp"
+
+#define PRCM_BASE 0x01f01400
+#define PRCM_SIZE 0x800
+
+#define PRCM_CL_RST_CTRL(cluster) (0x4 + (cluster) * 0x4)
+#define PRCM_CL_PWROFF(cluster) (0x100 + (cluster) * 0x4)
+#define PRCM_CL_PWR_CLAMP(cluster, cpu) (0x140 + (cluster) * 0x10 + (cpu) * 0x4)
+
+#define CPUCFG_BASE 0x01f01c00
+#define CPUCFG_SIZE 0x400
+
+#define CPUCFG_CL_RST(cluster) (0x30 + (cluster) * 0x4)
+#define CPUCFG_P_REG0 0x1a4
+
+#define CPUXCFG_BASE 0x01700000
+#define CPUXCFG_SIZE 0x400
+
+#define CPUXCFG_CL_RST(cluster) (0x80 + (cluster) * 0x4)
+#define CPUXCFG_CL_RST_SOC_DBG_RST __BIT(24)
+#define CPUXCFG_CL_RST_ETM_RST(cpu) __BIT(20 + (cpu))
+#define CPUXCFG_CL_RST_DBG_RST(cpu) __BIT(16 + (cpu))
+#define CPUXCFG_CL_RST_H_RST __BIT(12)
+#define CPUXCFG_CL_RST_L2_RST __BIT(8)
+#define CPUXCFG_CL_CTRL0(cluster) (0x0 + (cluster) * 0x10)
+#define CPUXCFG_CL_CTRL1(cluster) (0x4 + (cluster) * 0x10)
+#define CPUXCFG_CL_CTRL1_ACINACTM __BIT(0)
+
+#define CCI_BASE 0x01790000
+#define CCI_SLAVEIF3_BASE (CCI_BASE + 0x4000)
+#define CCI_SLAVEIF4_BASE (CCI_BASE + 0x5000)
+
+extern struct bus_space arm_generic_bs_tag;
+
+uint32_t sunxi_mc_cci_port[MAXCPUS] = {
+ CCI_SLAVEIF3_BASE,
+ CCI_SLAVEIF3_BASE,
+ CCI_SLAVEIF3_BASE,
+ CCI_SLAVEIF3_BASE,
+ CCI_SLAVEIF4_BASE,
+ CCI_SLAVEIF4_BASE,
+ CCI_SLAVEIF4_BASE,
+ CCI_SLAVEIF4_BASE,
+};
+
+static uint32_t
+sunxi_mc_smp_pa(void)
+{
+ extern void sunxi_mc_mpstart(void);
+ bool ok __diagused;
+ paddr_t pa;
+
+ ok = pmap_extract(pmap_kernel(), (vaddr_t)sunxi_mc_mpstart, &pa);
+ KASSERT(ok);
+
+ return pa;
+}
+
+static int
+sunxi_mc_smp_start(bus_space_tag_t bst, bus_space_handle_t prcm, bus_space_handle_t cpucfg,
+ bus_space_handle_t cpuxcfg, u_int cluster, u_int cpu)
+{
+ uint32_t val;
+ int i;
+
+ /* Set start vector */
+ bus_space_write_4(bst, cpucfg, CPUCFG_P_REG0, sunxi_mc_smp_pa());
+
+ /* Assert core reset */
+ val = bus_space_read_4(bst, cpuxcfg, CPUXCFG_CL_RST(cluster));
+ val &= ~__BIT(cpu);
+ bus_space_write_4(bst, cpuxcfg, CPUXCFG_CL_RST(cluster), val);
+
+ /* Assert power-on reset */
+ val = bus_space_read_4(bst, cpucfg, CPUCFG_CL_RST(cluster));
+ val &= ~__BIT(cpu);
+ bus_space_write_4(bst, cpucfg, CPUCFG_CL_RST(cluster), val);
+
+ /* Disable automatic L1 cache invalidate at reset */
+ val = bus_space_read_4(bst, cpuxcfg, CPUXCFG_CL_CTRL0(cluster));
+ val &= ~__BIT(cpu);
+ bus_space_write_4(bst, cpuxcfg, CPUXCFG_CL_CTRL0(cluster), val);
+
+ /* Release power clamp */
+ for (i = 0; i <= 8; i++) {
+ bus_space_write_4(bst, prcm, PRCM_CL_PWR_CLAMP(cluster, cpu), 0xff >> i);
+ delay(10);
+ }
+ for (i = 100000; i > 0; i--) {
+ if (bus_space_read_4(bst, prcm, PRCM_CL_PWR_CLAMP(cluster, cpu)) == 0)
+ break;
+ }
+ if (i == 0) {
+ printf("CPU %#llx failed to start\n", __SHIFTIN(cluster, MPIDR_AFF1) | __SHIFTIN(cpu, MPIDR_AFF0));
+ return ETIMEDOUT;
+ }
+
+ /* Clear power-off gating */
+ val = bus_space_read_4(bst, prcm, PRCM_CL_PWROFF(cluster));
+ if (cpu == 0)
+ val &= ~__BIT(4);
+ val &= ~__BIT(cpu);
+ bus_space_write_4(bst, prcm, PRCM_CL_PWROFF(cluster), val);
+
+ /* De-assert power-on reset */
+ val = bus_space_read_4(bst, prcm, PRCM_CL_RST_CTRL(cluster));
+ val |= __BIT(cpu);
+ bus_space_write_4(bst, prcm, PRCM_CL_RST_CTRL(cluster), val);
+
+ val = bus_space_read_4(bst, cpucfg, CPUCFG_CL_RST(cluster));
+ val |= __BIT(cpu);
+ bus_space_write_4(bst, cpucfg, CPUCFG_CL_RST(cluster), val);
+ delay(10);
+
+ /* De-assert core reset */
+ val = bus_space_read_4(bst, cpuxcfg, CPUXCFG_CL_RST(cluster));
+ val |= __BIT(cpu);
+ val |= CPUXCFG_CL_RST_SOC_DBG_RST;
+ val |= CPUXCFG_CL_RST_ETM_RST(cpu);
+ val |= CPUXCFG_CL_RST_DBG_RST(cpu);
+ val |= CPUXCFG_CL_RST_L2_RST;
+ val |= CPUXCFG_CL_RST_H_RST;
+ bus_space_write_4(bst, cpuxcfg, CPUXCFG_CL_RST(cluster), val);
+
+ /* De-assert ACINACTM */
+ val = bus_space_read_4(bst, cpuxcfg, CPUXCFG_CL_CTRL1(cluster));
+ val &= ~CPUXCFG_CL_CTRL1_ACINACTM;
+ bus_space_write_4(bst, cpuxcfg, CPUXCFG_CL_CTRL1(cluster), val);
+
+ return 0;
+}
+
+int
+sunxi_mc_smp_enable(u_int mpidr)
+{
+ bus_space_tag_t bst = &arm_generic_bs_tag;
+ bus_space_handle_t prcm, cpucfg, cpuxcfg;
+ int error;
+
+ const u_int cluster = __SHIFTOUT(mpidr, MPIDR_AFF1);
+ const u_int cpu = __SHIFTOUT(mpidr, MPIDR_AFF0);
+
+ if (bus_space_map(bst, PRCM_BASE, PRCM_SIZE, 0, &prcm) != 0 ||
+ bus_space_map(bst, CPUCFG_BASE, CPUCFG_SIZE, 0, &cpucfg) != 0 ||
+ bus_space_map(bst, CPUXCFG_BASE, CPUXCFG_SIZE, 0, &cpuxcfg) != 0)
+ return ENOMEM;
+
+ error = sunxi_mc_smp_start(bst, prcm, cpucfg, cpuxcfg, cluster, cpu);
+
+ bus_space_unmap(bst, cpuxcfg, CPUXCFG_SIZE);
+ bus_space_unmap(bst, cpucfg, CPUCFG_SIZE);
+ bus_space_unmap(bst, prcm, PRCM_SIZE);
+
+ return error;
+}
+
+int
+sunxi_mc_smp_match(const char *enable_method)
+{
+ return strcmp(enable_method, A83T_SMP_ENABLE_METHOD) == 0;
+}
Index: src/sys/arch/arm/sunxi/sunxi_mc_smp.h
diff -u /dev/null src/sys/arch/arm/sunxi/sunxi_mc_smp.h:1.1
--- /dev/null Thu Jan 3 11:01:59 2019
+++ src/sys/arch/arm/sunxi/sunxi_mc_smp.h Thu Jan 3 11:01:59 2019
@@ -0,0 +1,35 @@
+/* $NetBSD: sunxi_mc_smp.h,v 1.1 2019/01/03 11:01:59 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2019 Jared McNeill <[email protected]>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _SUNXI_MC_SMP_H
+#define _SUNXI_MC_SMP_H
+
+int sunxi_mc_smp_match(const char *);
+int sunxi_mc_smp_enable(u_int);
+
+#endif /* !_SUNXI_MC_SMP_H */
