Module Name: src
Committed By: matt
Date: Sun May 17 06:15:50 UTC 2015
Modified Files:
src/sys/arch/arm/nvidia: soc_tegra124.c
Log Message:
Restructure a bit to make spinning a subset of cores easier.
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/arm/nvidia/soc_tegra124.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/nvidia/soc_tegra124.c
diff -u src/sys/arch/arm/nvidia/soc_tegra124.c:1.3 src/sys/arch/arm/nvidia/soc_tegra124.c:1.4
--- src/sys/arch/arm/nvidia/soc_tegra124.c:1.3 Wed May 13 11:06:13 2015
+++ src/sys/arch/arm/nvidia/soc_tegra124.c Sun May 17 06:15:50 2015
@@ -1,4 +1,4 @@
-/* $NetBSD: soc_tegra124.c,v 1.3 2015/05/13 11:06:13 jmcneill Exp $ */
+/* $NetBSD: soc_tegra124.c,v 1.4 2015/05/17 06:15:50 matt Exp $ */
/*-
* Copyright (c) 2015 Jared D. McNeill <jmcne...@invisible.ca>
@@ -30,7 +30,7 @@
#include "opt_multiprocessor.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: soc_tegra124.c,v 1.3 2015/05/13 11:06:13 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: soc_tegra124.c,v 1.4 2015/05/17 06:15:50 matt Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -128,7 +128,6 @@ tegra124_mpinit(void)
extern void cortex_mpstart(void);
bus_space_tag_t bst = &armv7_generic_bs_tag;
bus_space_handle_t bsh;
- u_int i;
bus_space_subregion(bst, tegra_ppsb_bsh,
TEGRA_EVP_OFFSET, TEGRA_EVP_SIZE, &bsh);
@@ -139,14 +138,15 @@ tegra124_mpinit(void)
bus_space_write_4(bst, bsh, EVP_RESET_VECTOR_0_REG, (uint32_t)cortex_mpstart);
bus_space_barrier(bst, bsh, EVP_RESET_VECTOR_0_REG, 4,
BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);
+ uint32_t started = 0;
- tegra_pmc_power(PMC_PARTID_CPU1, true);
- tegra_pmc_power(PMC_PARTID_CPU2, true);
- tegra_pmc_power(PMC_PARTID_CPU3, true);
+ tegra_pmc_power(PMC_PARTID_CPU1, true); started |= __BIT(1);
+ tegra_pmc_power(PMC_PARTID_CPU2, true); started |= __BIT(2);
+ tegra_pmc_power(PMC_PARTID_CPU3, true); started |= __BIT(3);
- for (i = 0x10000000; i > 0; i--) {
+ for (u_int i = 0x10000000; i > 0; i--) {
__asm __volatile("dmb" ::: "memory");
- if (arm_cpu_hatched == 0xe)
+ if (arm_cpu_hatched == started)
break;
}
#endif
