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hw/i386: Introduce X86CPUTopoInfo to contain topology info

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This is an effort to re-arrange few data structure for better readability.

1. Add X86CPUTopoInfo which will have all the topology informations
   required to build the cpu topology. There is no functional changes.

2. Introduce init_topo_info to initialize X86CPUTopoInfo members from
   X86MachineState.

3. Update x86 unit tests for new calling convention with parameter X86CPUTopoInfo

There is no functional changes.

Signed-off-by: Babu Moger <babu.moger@amd.com>
Message-Id: <158396717251.58170.4499717831243474938.stgit@naples-babu.amd.com>
This commit is contained in:
Babu Moger 2020-03-11 17:52:52 -05:00 • committed by Eduardo Habkost
parent 781c67ca55
commit 53a5e7bddf
5 changed files with 81 additions and 47 deletions
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43
tests/test-x86-cpuid.c
View file

@ -28,15 +28,18 @@
static void test_topo_bits(void)
{
X86CPUTopoInfo topo_info = {0};
/* simple tests for 1 thread per core, 1 core per die, 1 die per package */
g_assert_cmpuint(apicid_smt_width(1, 1, 1), ==, 0);
g_assert_cmpuint(apicid_core_width(1, 1, 1), ==, 0);
g_assert_cmpuint(apicid_die_width(1, 1, 1), ==, 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 0), ==, 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 1), ==, 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 2), ==, 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1, 3), ==, 3);
topo_info = (X86CPUTopoInfo) {1, 1, 1};
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 3), ==, 3);
/* Test field width calculation for multiple values
@ -71,36 +74,38 @@ static void test_topo_bits(void)
g_assert_cmpuint(apicid_die_offset(1, 6, 3), ==, 5);
g_assert_cmpuint(apicid_pkg_offset(1, 6, 3), ==, 5);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 0), ==, 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1), ==, 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2), ==, 2);
topo_info = (X86CPUTopoInfo) {1, 6, 3};
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 0), ==, 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1), ==, 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2), ==, 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 0), ==,
topo_info = (X86CPUTopoInfo) {1, 6, 3};
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 0), ==,
(1 << 2) | 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 1), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 1), ==,
(1 << 2) | 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 2), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 1 * 3 + 2), ==,
(1 << 2) | 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 0), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 0), ==,
(2 << 2) | 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 1), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 1), ==,
(2 << 2) | 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 2), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 2 * 3 + 2), ==,
(2 << 2) | 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 0), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 0), ==,
(5 << 2) | 0);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 1), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 1), ==,
(5 << 2) | 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 2), ==,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info, 5 * 3 + 2), ==,
(5 << 2) | 2);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5));
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1);
g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3,
g_assert_cmpuint(x86_apicid_from_cpu_idx(&topo_info,
3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2);
}