Date: Mon, 9 Feb 2015 02:13:36 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r278428 - head/sys/powerpc/pseries Message-ID: <201502090213.t192DaRM051519@svn.freebsd.org>
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Author: nwhitehorn Date: Mon Feb 9 02:13:36 2015 New Revision: 278428 URL: https://svnweb.freebsd.org/changeset/base/278428 Log: Technically speaking, using one virtal processor area for all CPUs is a violation of the spec. Make duplicate entries for each CPU. Modified: head/sys/powerpc/pseries/platform_chrp.c Modified: head/sys/powerpc/pseries/platform_chrp.c ============================================================================== --- head/sys/powerpc/pseries/platform_chrp.c Mon Feb 9 02:12:38 2015 (r278427) +++ head/sys/powerpc/pseries/platform_chrp.c Mon Feb 9 02:13:36 2015 (r278428) @@ -58,7 +58,7 @@ extern void *ap_pcpu; #endif #ifdef __powerpc64__ -static uint8_t splpar_vpa[640] __aligned(64); +static uint8_t splpar_vpa[MAXCPU][640] __aligned(128); /* XXX: dpcpu */ #endif static vm_offset_t realmaxaddr = VM_MAX_ADDRESS; @@ -124,6 +124,8 @@ chrp_probe(platform_t plat) static int chrp_attach(platform_t plat) { + int i; + #ifdef __powerpc64__ /* XXX: check for /rtas/ibm,hypertas-functions? */ if (!(mfmsr() & PSL_HV)) { @@ -136,14 +138,19 @@ chrp_attach(platform_t plat) cpu_idle_hook = phyp_cpu_idle; /* Set up important VPA fields */ - bzero(splpar_vpa, sizeof(splpar_vpa)); - splpar_vpa[4] = (uint8_t)((sizeof(splpar_vpa) >> 8) & 0xff); - splpar_vpa[5] = (uint8_t)(sizeof(splpar_vpa) & 0xff); - splpar_vpa[0xba] = 1; /* Maintain FPRs */ - splpar_vpa[0xbb] = 1; /* Maintain PMCs */ - splpar_vpa[0xfc] = 0xff; /* Maintain full SLB */ - splpar_vpa[0xfd] = 0xff; - splpar_vpa[0xff] = 1; /* Maintain Altivec */ + for (i = 0; i < MAXCPU; i++) { + bzero(splpar_vpa[i], sizeof(splpar_vpa)); + /* First two: VPA size */ + splpar_vpa[i][4] = + (uint8_t)((sizeof(splpar_vpa[i]) >> 8) & 0xff); + splpar_vpa[i][5] = + (uint8_t)(sizeof(splpar_vpa[i]) & 0xff); + splpar_vpa[i][0xba] = 1; /* Maintain FPRs */ + splpar_vpa[i][0xbb] = 1; /* Maintain PMCs */ + splpar_vpa[i][0xfc] = 0xff; /* Maintain full SLB */ + splpar_vpa[i][0xfd] = 0xff; + splpar_vpa[i][0xff] = 1; /* Maintain Altivec */ + } mb(); /* Set up hypervisor CPU stuff */ @@ -492,11 +499,12 @@ static void chrp_smp_ap_init(platform_t platform) { if (!(mfmsr() & PSL_HV)) { + /* Register VPA */ + phyp_hcall(H_REGISTER_VPA, 1UL, PCPU_GET(cpuid), + splpar_vpa[PCPU_GET(cpuid)]); + /* Set interrupt priority */ phyp_hcall(H_CPPR, 0xff); - - /* Register VPA */ - phyp_hcall(H_REGISTER_VPA, 1UL, PCPU_GET(cpuid), splpar_vpa); } } #else
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