| 0,0 → 1,190 |
|---|
| /* |
| * Copyright (c) 2005 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup sparc64 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch/cpu_family.h> |
| #include <cpu.h> |
| #include <arch.h> |
| #include <genarch/ofw/ofw_tree.h> |
| #include <arch/drivers/tick.h> |
| #include <print.h> |
| #include <arch/cpu_node.h> |
| #include <arch/sun4u/cpu.h> |
| |
| /** |
| * Finds out the clock frequency of the current CPU. |
| * |
| * @param node node representing the current CPU in the OFW tree |
| * @return clock frequency if "node" is the current CPU and no error |
| * occurs, -1 if "node" is not the current CPU or on error |
| */ |
| static int find_cpu_frequency(ofw_tree_node_t *node) |
| { |
| ofw_tree_property_t *prop; |
| uint32_t mid; |
| |
| /* 'upa-portid' for US, 'portid' for US-III, 'cpuid' for US-IV */ |
| prop = ofw_tree_getprop(node, "upa-portid"); |
| if ((!prop) || (!prop->value)) |
| prop = ofw_tree_getprop(node, "portid"); |
| if ((!prop) || (!prop->value)) |
| prop = ofw_tree_getprop(node, "cpuid"); |
| |
| if (prop && prop->value) { |
| mid = *((uint32_t *) prop->value); |
| if (mid == CPU->arch.mid) { |
| prop = ofw_tree_getprop(node, "clock-frequency"); |
| if (prop && prop->value) { |
| return *((uint32_t *) prop->value); |
| } |
| } |
| } |
| |
| return -1; |
| } |
| |
| /** Perform sparc64 specific initialization of the processor structure for the |
| * current processor. |
| */ |
| void cpu_arch_init(void) |
| { |
| ofw_tree_node_t *node; |
| uint32_t clock_frequency = 0; |
| |
| CPU->arch.mid = read_mid(); |
| |
| /* |
| * Detect processor frequency. |
| */ |
| if (is_us() || is_us_iii()) { |
| node = ofw_tree_find_child_by_device_type(cpus_parent(), "cpu"); |
| while (node) { |
| int f = find_cpu_frequency(node); |
| if (f != -1) |
| clock_frequency = (uint32_t) f; |
| node = ofw_tree_find_peer_by_device_type(node, "cpu"); |
| } |
| } else if (is_us_iv()) { |
| node = ofw_tree_find_child(cpus_parent(), "cmp"); |
| while (node) { |
| int f; |
| f = find_cpu_frequency( |
| ofw_tree_find_child(node, "cpu@0")); |
| if (f != -1) |
| clock_frequency = (uint32_t) f; |
| f = find_cpu_frequency( |
| ofw_tree_find_child(node, "cpu@1")); |
| if (f != -1) |
| clock_frequency = (uint32_t) f; |
| node = ofw_tree_find_peer_by_name(node, "cmp"); |
| } |
| } |
| |
| CPU->arch.clock_frequency = clock_frequency; |
| tick_init(); |
| } |
| |
| /** Read version information from the current processor. */ |
| void cpu_identify(void) |
| { |
| CPU->arch.ver.value = ver_read(); |
| } |
| |
| /** Print version information for a processor. |
| * |
| * This function is called by the bootstrap processor. |
| * |
| * @param m Processor structure of the CPU for which version information is to |
| * be printed. |
| */ |
| void cpu_print_report(cpu_t *m) |
| { |
| char *manuf, *impl; |
| |
| switch (m->arch.ver.manuf) { |
| case MANUF_FUJITSU: |
| manuf = "Fujitsu"; |
| break; |
| case MANUF_ULTRASPARC: |
| manuf = "UltraSPARC"; |
| break; |
| case MANUF_SUN: |
| manuf = "Sun"; |
| break; |
| default: |
| manuf = "Unknown"; |
| break; |
| } |
| |
| switch (CPU->arch.ver.impl) { |
| case IMPL_ULTRASPARCI: |
| impl = "UltraSPARC I"; |
| break; |
| case IMPL_ULTRASPARCII: |
| impl = "UltraSPARC II"; |
| break; |
| case IMPL_ULTRASPARCII_I: |
| impl = "UltraSPARC IIi"; |
| break; |
| case IMPL_ULTRASPARCII_E: |
| impl = "UltraSPARC IIe"; |
| break; |
| case IMPL_ULTRASPARCIII: |
| impl = "UltraSPARC III"; |
| break; |
| case IMPL_ULTRASPARCIII_PLUS: |
| impl = "UltraSPARC III+"; |
| break; |
| case IMPL_ULTRASPARCIII_I: |
| impl = "UltraSPARC IIIi"; |
| break; |
| case IMPL_ULTRASPARCIV: |
| impl = "UltraSPARC IV"; |
| break; |
| case IMPL_ULTRASPARCIV_PLUS: |
| impl = "UltraSPARC IV+"; |
| break; |
| case IMPL_SPARC64V: |
| impl = "SPARC 64V"; |
| break; |
| default: |
| impl = "Unknown"; |
| break; |
| } |
| |
| printf("cpu%d: manuf=%s, impl=%s, mask=%d (%d MHz)\n", m->id, manuf, |
| impl, m->arch.ver.mask, m->arch.clock_frequency / 1000000); |
| } |
| |
| /** @} |
| */ |