diff options
| author | David Daney <david.daney@cavium.com> | 2016-02-02 04:46:54 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-05-13 15:01:39 +0300 |
| commit | 7d52ab163c75bb830185f7ea12bae1db87f12b56 (patch) | |
| tree | 4c17ceae61fbbd110059570465b1e13d29e010fa /arch/mips/cavium-octeon | |
| parent | 58546e3b735cc9f695bba1559be76a68b072761f (diff) | |
| download | linux-7d52ab163c75bb830185f7ea12bae1db87f12b56.tar.xz | |
MIPS: OCTEON: Extend number of supported CPUs past 32
To support more than 48 CPUs, the bootinfo structure grows a new
coremask structure. Add the definition of the structure and add it to
struct cvmx_bootinfo. In prom_init(), copy the new coremask data into
the sysinfo structure, and use it in smp_setup().
Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12319/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cavium-octeon')
| -rw-r--r-- | arch/mips/cavium-octeon/setup.c | 19 | ||||
| -rw-r--r-- | arch/mips/cavium-octeon/smp.c | 4 |
2 files changed, 19 insertions, 4 deletions
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c index cd7101fb6227..9c6ad2fab344 100644 --- a/arch/mips/cavium-octeon/setup.c +++ b/arch/mips/cavium-octeon/setup.c @@ -637,9 +637,22 @@ void __init prom_init(void) sysinfo = cvmx_sysinfo_get(); memset(sysinfo, 0, sizeof(*sysinfo)); sysinfo->system_dram_size = octeon_bootinfo->dram_size << 20; - sysinfo->phy_mem_desc_ptr = - cvmx_phys_to_ptr(octeon_bootinfo->phy_mem_desc_addr); - sysinfo->core_mask = octeon_bootinfo->core_mask; + sysinfo->phy_mem_desc_addr = (u64)phys_to_virt(octeon_bootinfo->phy_mem_desc_addr); + + if ((octeon_bootinfo->major_version > 1) || + (octeon_bootinfo->major_version == 1 && + octeon_bootinfo->minor_version >= 4)) + cvmx_coremask_copy(&sysinfo->core_mask, + &octeon_bootinfo->ext_core_mask); + else + cvmx_coremask_set64(&sysinfo->core_mask, + octeon_bootinfo->core_mask); + + /* Some broken u-boot pass garbage in upper bits, clear them out */ + if (!OCTEON_IS_MODEL(OCTEON_CN78XX)) + for (i = 512; i < 1024; i++) + cvmx_coremask_clear_core(&sysinfo->core_mask, i); + sysinfo->exception_base_addr = octeon_bootinfo->exception_base_addr; sysinfo->cpu_clock_hz = octeon_bootinfo->eclock_hz; sysinfo->dram_data_rate_hz = octeon_bootinfo->dclock_hz * 2; diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index 61a60e424424..42395c561aa5 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -103,6 +103,8 @@ static void octeon_smp_setup(void) int cpus; int id; int core_mask = octeon_get_boot_coremask(); + struct cvmx_sysinfo *sysinfo = cvmx_sysinfo_get(); + #ifdef CONFIG_HOTPLUG_CPU unsigned int num_cores = cvmx_octeon_num_cores(); #endif @@ -119,7 +121,7 @@ static void octeon_smp_setup(void) /* The present CPUs get the lowest CPU numbers. */ cpus = 1; for (id = 0; id < NR_CPUS; id++) { - if ((id != coreid) && (core_mask & (1 << id))) { + if ((id != coreid) && cvmx_coremask_is_core_set(&sysinfo->core_mask, id)) { set_cpu_possible(cpus, true); set_cpu_present(cpus, true); __cpu_number_map[id] = cpus; |