X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2Fpseries%2Flpar.c;h=1fe445ab78a6342f0efed8e96349045d5a33eec2;hb=3e2ab46df697048e222cdc046a2fa97149ca32ba;hp=a50e5f3f396dc177da02deea3cbad714d01be4ce;hpb=e532c37858fdcc18e9a91d24c2e22cd21aa22561;p=linux-2.6-omap-h63xx.git diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index a50e5f3f396..1820a0b0a8c 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -21,9 +21,9 @@ #undef DEBUG_LOW -#include #include #include +#include #include #include #include @@ -48,11 +48,10 @@ #define DBG_LOW(fmt...) do { } while(0) #endif -/* in pSeries_hvCall.S */ +/* in hvCall.S */ EXPORT_SYMBOL(plpar_hcall); -EXPORT_SYMBOL(plpar_hcall_4out); +EXPORT_SYMBOL(plpar_hcall9); EXPORT_SYMBOL(plpar_hcall_norets); -EXPORT_SYMBOL(plpar_hcall_8arg_2ret); extern void pSeries_find_serial_port(void); @@ -60,7 +59,7 @@ extern void pSeries_find_serial_port(void); int vtermno; /* virtual terminal# for udbg */ #define __ALIGNED__ __attribute__((__aligned__(sizeof(long)))) -static void udbg_hvsi_putc(unsigned char c) +static void udbg_hvsi_putc(char c) { /* packet's seqno isn't used anyways */ uint8_t packet[] __ALIGNED__ = { 0xff, 5, 0, 0, c }; @@ -71,7 +70,7 @@ static void udbg_hvsi_putc(unsigned char c) do { rc = plpar_put_term_char(vtermno, sizeof(packet), packet); - } while (rc == H_Busy); + } while (rc == H_BUSY); } static long hvsi_udbg_buf_len; @@ -84,7 +83,7 @@ static int udbg_hvsi_getc_poll(void) if (hvsi_udbg_buf_len == 0) { rc = plpar_get_term_char(vtermno, &hvsi_udbg_buf_len, hvsi_udbg_buf); - if (rc != H_Success || hvsi_udbg_buf[0] != 0xff) { + if (rc != H_SUCCESS || hvsi_udbg_buf[0] != 0xff) { /* bad read or non-data packet */ hvsi_udbg_buf_len = 0; } else { @@ -111,7 +110,7 @@ static int udbg_hvsi_getc_poll(void) return ch; } -static unsigned char udbg_hvsi_getc(void) +static int udbg_hvsi_getc(void) { int ch; for (;;) { @@ -127,7 +126,7 @@ static unsigned char udbg_hvsi_getc(void) } } -static void udbg_putcLP(unsigned char c) +static void udbg_putcLP(char c) { char buf[16]; unsigned long rc; @@ -138,7 +137,7 @@ static void udbg_putcLP(unsigned char c) buf[0] = c; do { rc = plpar_put_term_char(vtermno, 1, buf); - } while(rc == H_Busy); + } while(rc == H_BUSY); } /* Buffered chars getc */ @@ -157,7 +156,7 @@ static int udbg_getc_pollLP(void) /* get some more chars. */ inbuflen = 0; rc = plpar_get_term_char(vtermno, &inbuflen, buf); - if (rc != H_Success) + if (rc != H_SUCCESS) inbuflen = 0; /* otherwise inbuflen is garbage */ } if (inbuflen <= 0 || inbuflen > 16) { @@ -172,7 +171,7 @@ static int udbg_getc_pollLP(void) return ch; } -static unsigned char udbg_getcLP(void) +static int udbg_getcLP(void) { int ch; for (;;) { @@ -191,7 +190,7 @@ static unsigned char udbg_getcLP(void) /* call this from early_init() for a working debug console on * vterm capable LPAR machines */ -void udbg_init_debug_lpar(void) +void __init udbg_init_debug_lpar(void) { vtermno = 0; udbg_putc = udbg_putcLP; @@ -200,80 +199,87 @@ void udbg_init_debug_lpar(void) } /* returns 0 if couldn't find or use /chosen/stdout as console */ -int find_udbg_vterm(void) +void __init find_udbg_vterm(void) { struct device_node *stdout_node; - u32 *termno; - char *name; - int found = 0; + const u32 *termno; + const char *name; + int add_console; /* find the boot console from /chosen/stdout */ if (!of_chosen) - return 0; - name = (char *)get_property(of_chosen, "linux,stdout-path", NULL); + return; + name = get_property(of_chosen, "linux,stdout-path", NULL); if (name == NULL) - return 0; + return; stdout_node = of_find_node_by_path(name); if (!stdout_node) - return 0; - - /* now we have the stdout node; figure out what type of device it is. */ - name = (char *)get_property(stdout_node, "name", NULL); + return; + name = get_property(stdout_node, "name", NULL); if (!name) { printk(KERN_WARNING "stdout node missing 'name' property!\n"); goto out; } + /* The user has requested a console so this is already set up. */ + add_console = !strstr(cmd_line, "console="); - if (strncmp(name, "vty", 3) == 0) { - if (device_is_compatible(stdout_node, "hvterm1")) { - termno = (u32 *)get_property(stdout_node, "reg", NULL); - if (termno) { - vtermno = termno[0]; - udbg_putc = udbg_putcLP; - udbg_getc = udbg_getcLP; - udbg_getc_poll = udbg_getc_pollLP; - found = 1; - } - } else if (device_is_compatible(stdout_node, "hvterm-protocol")) { - termno = (u32 *)get_property(stdout_node, "reg", NULL); - if (termno) { - vtermno = termno[0]; - udbg_putc = udbg_hvsi_putc; - udbg_getc = udbg_hvsi_getc; - udbg_getc_poll = udbg_hvsi_getc_poll; - found = 1; - } - } - } else if (strncmp(name, "serial", 6)) { - /* XXX fix ISA serial console */ - printk(KERN_WARNING "serial stdout on LPAR ('%s')! " - "can't print udbg messages\n", - stdout_node->full_name); - } else { - printk(KERN_WARNING "don't know how to print to stdout '%s'\n", - stdout_node->full_name); + /* Check if it's a virtual terminal */ + if (strncmp(name, "vty", 3) != 0) + goto out; + termno = get_property(stdout_node, "reg", NULL); + if (termno == NULL) + goto out; + vtermno = termno[0]; + + if (device_is_compatible(stdout_node, "hvterm1")) { + udbg_putc = udbg_putcLP; + udbg_getc = udbg_getcLP; + udbg_getc_poll = udbg_getc_pollLP; + if (add_console) + add_preferred_console("hvc", termno[0] & 0xff, NULL); + } else if (device_is_compatible(stdout_node, "hvterm-protocol")) { + vtermno = termno[0]; + udbg_putc = udbg_hvsi_putc; + udbg_getc = udbg_hvsi_getc; + udbg_getc_poll = udbg_hvsi_getc_poll; + if (add_console) + add_preferred_console("hvsi", termno[0] & 0xff, NULL); } - out: of_node_put(stdout_node); - return found; } void vpa_init(int cpu) { int hwcpu = get_hard_smp_processor_id(cpu); - unsigned long vpa = __pa(&paca[cpu].lppaca); + unsigned long addr; long ret; if (cpu_has_feature(CPU_FTR_ALTIVEC)) - paca[cpu].lppaca.vmxregs_in_use = 1; + lppaca[cpu].vmxregs_in_use = 1; - ret = register_vpa(hwcpu, vpa); + addr = __pa(&lppaca[cpu]); + ret = register_vpa(hwcpu, addr); - if (ret) + if (ret) { printk(KERN_ERR "WARNING: vpa_init: VPA registration for " "cpu %d (hw %d) of area %lx returns %ld\n", - cpu, hwcpu, vpa, ret); + cpu, hwcpu, addr, ret); + return; + } + /* + * PAPR says this feature is SLB-Buffer but firmware never + * reports that. All SPLPAR support SLB shadow buffer. + */ + addr = __pa(&slb_shadow[cpu]); + if (firmware_has_feature(FW_FEATURE_SPLPAR)) { + ret = register_slb_shadow(hwcpu, addr); + if (ret) + printk(KERN_ERR + "WARNING: vpa_init: SLB shadow buffer " + "registration for cpu %d (hw %d) of area %lx " + "returns %ld\n", cpu, hwcpu, addr, ret); + } } long pSeries_lpar_hpte_insert(unsigned long hpte_group, @@ -285,7 +291,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, unsigned long flags; unsigned long slot; unsigned long hpte_v, hpte_r; - unsigned long dummy0, dummy1; if (!(vflags & HPTE_V_BOLTED)) DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, " @@ -298,18 +303,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" hpte_v=%016lx, hpte_r=%016lx\n", hpte_v, hpte_r); -#if 1 - { - int i; - for (i=0;i<8;i++) { - unsigned long w0, w1; - plpar_pte_read(0, hpte_group, &w0, &w1); - BUG_ON (HPTE_V_COMPARE(hpte_v, w0) - && (w0 & HPTE_V_VALID)); - } - } -#endif - /* Now fill in the actual HPTE */ /* Set CEC cookie to 0 */ /* Zero page = 0 */ @@ -322,9 +315,8 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE)) hpte_r &= ~_PAGE_COHERENT; - lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v, - hpte_r, &slot, &dummy0, &dummy1); - if (unlikely(lpar_rc == H_PTEG_Full)) { + lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot); + if (unlikely(lpar_rc == H_PTEG_FULL)) { if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" full\n"); return -1; @@ -335,7 +327,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group, * will fail. However we must catch the failure in hash_page * or we will loop forever, so return -2 in this case. */ - if (unlikely(lpar_rc != H_Success)) { + if (unlikely(lpar_rc != H_SUCCESS)) { if (!(vflags & HPTE_V_BOLTED)) DBG_LOW(" lpar err %d\n", lpar_rc); return -2; @@ -366,9 +358,9 @@ static long pSeries_lpar_hpte_remove(unsigned long hpte_group) /* don't remove a bolted entry */ lpar_rc = plpar_pte_remove(H_ANDCOND, hpte_group + slot_offset, (0x1UL << 4), &dummy1, &dummy2); - if (lpar_rc == H_Success) + if (lpar_rc == H_SUCCESS) return i; - BUG_ON(lpar_rc != H_Not_Found); + BUG_ON(lpar_rc != H_NOT_FOUND); slot_offset++; slot_offset &= 0x7; @@ -411,14 +403,14 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot, lpar_rc = plpar_pte_protect(flags, slot, want_v & HPTE_V_AVPN); - if (lpar_rc == H_Not_Found) { + if (lpar_rc == H_NOT_FOUND) { DBG_LOW("not found !\n"); return -1; } DBG_LOW("ok\n"); - BUG_ON(lpar_rc != H_Success); + BUG_ON(lpar_rc != H_SUCCESS); return 0; } @@ -437,7 +429,7 @@ static unsigned long pSeries_lpar_hpte_getword0(unsigned long slot) lpar_rc = plpar_pte_read(flags, slot, &dword0, &dummy_word1); - BUG_ON(lpar_rc != H_Success); + BUG_ON(lpar_rc != H_SUCCESS); return dword0; } @@ -488,7 +480,7 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp, flags = newpp & 7; lpar_rc = plpar_pte_protect(flags, slot, 0); - BUG_ON(lpar_rc != H_Success); + BUG_ON(lpar_rc != H_SUCCESS); } static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va, @@ -504,10 +496,10 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va, want_v = hpte_encode_v(va, psize); lpar_rc = plpar_pte_remove(H_AVPN, slot, want_v & HPTE_V_AVPN, &dummy1, &dummy2); - if (lpar_rc == H_Not_Found) + if (lpar_rc == H_NOT_FOUND) return; - BUG_ON(lpar_rc != H_Success); + BUG_ON(lpar_rc != H_SUCCESS); } /* @@ -532,7 +524,7 @@ void pSeries_lpar_flush_hash_range(unsigned long number, int local) spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags); } -void hpte_init_lpar(void) +void __init hpte_init_lpar(void) { ppc_md.hpte_invalidate = pSeries_lpar_hpte_invalidate; ppc_md.hpte_updatepp = pSeries_lpar_hpte_updatepp; @@ -541,6 +533,4 @@ void hpte_init_lpar(void) ppc_md.hpte_remove = pSeries_lpar_hpte_remove; ppc_md.flush_hash_range = pSeries_lpar_flush_hash_range; ppc_md.hpte_clear_all = pSeries_lpar_hptab_clear; - - htab_finish_init(); }