diff options
Diffstat (limited to 'arch/ppc64/kernel/LparData.c')
| -rw-r--r-- | arch/ppc64/kernel/LparData.c | 79 |
1 files changed, 1 insertions, 78 deletions
diff --git a/arch/ppc64/kernel/LparData.c b/arch/ppc64/kernel/LparData.c index 76cfd1449d5..1c11031c838 100644 --- a/arch/ppc64/kernel/LparData.c +++ b/arch/ppc64/kernel/LparData.c @@ -32,32 +32,12 @@ /* The HvReleaseData is the root of the information shared between * the hypervisor and Linux. */ - -/* - * WARNING - magic here - * - * Ok, this is a horrid hack below, but marginally better than the - * alternatives. What we really want is just to initialize - * hvReleaseData in C as in the #if 0 section here. However, gcc - * refuses to believe that (u32)&x is a constant expression, so will - * not allow the xMsNucDataOffset field to be properly initialized. - * So, we declare hvReleaseData in inline asm instead. We use inline - * asm, rather than a .S file, because the assembler won't generate - * the necessary relocation for the LparMap either, unless that symbol - * is declared in the same source file. Finally, we put the asm in a - * dummy, attribute-used function, instead of at file scope, because - * file scope asms don't allow contraints. We want to use the "i" - * constraints to put sizeof() and offsetof() expressions in there, - * because including asm/offsets.h in C code then stringifying causes - * all manner of warnings. - */ -#if 0 struct HvReleaseData hvReleaseData = { .xDesc = 0xc8a5d9c4, /* "HvRD" ebcdic */ .xSize = sizeof(struct HvReleaseData), .xVpdAreasPtrOffset = offsetof(struct naca_struct, xItVpdAreas), .xSlicNacaAddr = &naca, /* 64-bit Naca address */ - .xMsNucDataOffset = (u32)((unsigned long)&xLparMap - KERNELBASE), + .xMsNucDataOffset = LPARMAP_PHYS, .xFlags = HVREL_TAGSINACTIVE /* tags inactive */ /* 64 bit */ /* shared processors */ @@ -70,63 +50,6 @@ struct HvReleaseData hvReleaseData = { 0xa7, 0x40, 0xf2, 0x4b, 0xf4, 0x4b, 0xf6, 0xf4 }, }; -#endif - - -extern struct HvReleaseData hvReleaseData; - -static void __attribute_used__ hvReleaseData_wrapper(void) -{ - /* This doesn't appear to need any alignment (even 4 byte) */ - asm volatile ( - " lparMapPhys = xLparMap - %3\n" - " .data\n" - " .globl hvReleaseData\n" - "hvReleaseData:\n" - " .long 0xc8a5d9c4\n" /* xDesc */ - /* "HvRD" in ebcdic */ - " .short %0\n" /* xSize */ - " .short %1\n" /* xVpdAreasPtrOffset */ - " .llong naca\n" /* xSlicNacaAddr */ - " .long lparMapPhys\n" /* xMsNucDataOffset */ - " .long 0\n" /* xRsvd1 */ - " .short %2\n" /* xFlags */ - " .short 4\n" /* xVrmIndex - v5r2m0 */ - " .short 3\n" /* xMinSupportedPlicVrmIndex - v5r1m0 */ - " .short 3\n" /* xMinCompatablePlicVrmIndex - v5r1m0 */ - " .long 0xd38995a4\n" /* xVrmName */ - " .long 0xa740f24b\n" /* "Linux 2.4.64" ebcdic */ - " .long 0xf44bf6f4\n" - " . = hvReleaseData + %0\n" - " .previous\n" - : : "i"(sizeof(hvReleaseData)), - "i"(offsetof(struct naca_struct, xItVpdAreas)), - "i"(HVREL_TAGSINACTIVE /* tags inactive, 64 bit, */ - /* shared processors, HMT allowed */ - | 6), /* TEMP: This allows non-GA drivers */ - "i"(KERNELBASE) - ); -} - -struct LparMap __attribute__((aligned (16))) xLparMap = { - .xNumberEsids = HvEsidsToMap, - .xNumberRanges = HvRangesToMap, - .xSegmentTableOffs = STAB0_PAGE, - - .xEsids = { - { .xKernelEsid = GET_ESID(KERNELBASE), - .xKernelVsid = KERNEL_VSID(KERNELBASE), }, - { .xKernelEsid = GET_ESID(VMALLOCBASE), - .xKernelVsid = KERNEL_VSID(VMALLOCBASE), }, - }, - - .xRanges = { - { .xPages = HvPagesToMap, - .xOffset = 0, - .xVPN = KERNEL_VSID(KERNELBASE) << (SID_SHIFT - PAGE_SHIFT), - }, - }, -}; extern void system_reset_iSeries(void); extern void machine_check_iSeries(void); |