From d65af288a84d8bf8c27e55d45545f52f016c08a7 Mon Sep 17 00:00:00 2001 From: Like Xu Date: Wed, 12 Jun 2019 16:40:59 +0800 Subject: i386: Update new x86_apicid parsing rules with die_offset support In new sockets/dies/cores/threads model, the apicid of logical cpu could imply die level info of guest cpu topology thus x86_apicid_from_cpu_idx() need to be refactored with #dies value, so does apicid_*_offset(). To keep semantic compatibility, the legacy pkg_offset which helps to generate CPUIDs such as 0x3 for L3 cache should be mapping to die_offset. Signed-off-by: Like Xu Message-Id: <20190612084104.34984-5-like.xu@linux.intel.com> [ehabkost: squash unit test patch] Message-Id: <20190612084104.34984-6-like.xu@linux.intel.com> Reviewed-by: Eduardo Habkost Signed-off-by: Eduardo Habkost --- tests/test-x86-cpuid.c | 84 +++++++++++++++++++++++++++----------------------- 1 file changed, 45 insertions(+), 39 deletions(-) (limited to 'tests/test-x86-cpuid.c') diff --git a/tests/test-x86-cpuid.c b/tests/test-x86-cpuid.c index ff225006e4..1942287f33 100644 --- a/tests/test-x86-cpuid.c +++ b/tests/test-x86-cpuid.c @@ -28,74 +28,80 @@ static void test_topo_bits(void) { - /* simple tests for 1 thread per core, 1 core per socket */ - g_assert_cmpuint(apicid_smt_width(1, 1), ==, 0); - g_assert_cmpuint(apicid_core_width(1, 1), ==, 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, 0), ==, 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 1), ==, 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 2), ==, 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 1, 3), ==, 3); + 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); /* Test field width calculation for multiple values */ - g_assert_cmpuint(apicid_smt_width(1, 2), ==, 1); - g_assert_cmpuint(apicid_smt_width(1, 3), ==, 2); - g_assert_cmpuint(apicid_smt_width(1, 4), ==, 2); + g_assert_cmpuint(apicid_smt_width(1, 1, 2), ==, 1); + g_assert_cmpuint(apicid_smt_width(1, 1, 3), ==, 2); + g_assert_cmpuint(apicid_smt_width(1, 1, 4), ==, 2); - g_assert_cmpuint(apicid_smt_width(1, 14), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 15), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 16), ==, 4); - g_assert_cmpuint(apicid_smt_width(1, 17), ==, 5); + g_assert_cmpuint(apicid_smt_width(1, 1, 14), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 15), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 16), ==, 4); + g_assert_cmpuint(apicid_smt_width(1, 1, 17), ==, 5); - g_assert_cmpuint(apicid_core_width(30, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(31, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(32, 2), ==, 5); - g_assert_cmpuint(apicid_core_width(33, 2), ==, 6); + g_assert_cmpuint(apicid_core_width(1, 30, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 31, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 32, 2), ==, 5); + g_assert_cmpuint(apicid_core_width(1, 33, 2), ==, 6); + g_assert_cmpuint(apicid_die_width(1, 30, 2), ==, 0); + g_assert_cmpuint(apicid_die_width(2, 30, 2), ==, 1); + g_assert_cmpuint(apicid_die_width(3, 30, 2), ==, 2); + g_assert_cmpuint(apicid_die_width(4, 30, 2), ==, 2); /* build a weird topology and see if IDs are calculated correctly */ /* This will use 2 bits for thread ID and 3 bits for core ID */ - g_assert_cmpuint(apicid_smt_width(6, 3), ==, 2); - g_assert_cmpuint(apicid_core_width(6, 3), ==, 3); - g_assert_cmpuint(apicid_pkg_offset(6, 3), ==, 5); + g_assert_cmpuint(apicid_smt_width(1, 6, 3), ==, 2); + g_assert_cmpuint(apicid_core_offset(1, 6, 3), ==, 2); + 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(6, 3, 0), ==, 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1), ==, 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2), ==, 2); + 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); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 0), ==, (1 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 1), ==, (1 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 1 * 3 + 2), ==, (1 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 0), ==, (2 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 1), ==, (2 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 2 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 2 * 3 + 2), ==, (2 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 0), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 0), ==, (5 << 2) | 0); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 1), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 1), ==, (5 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 5 * 3 + 2), ==, + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, 5 * 3 + 2), ==, (5 << 2) | 2); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 0 * 3 + 0), ==, - (1 << 5)); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 1 * 6 * 3 + 1 * 3 + 1), ==, - (1 << 5) | (1 << 2) | 1); - g_assert_cmpuint(x86_apicid_from_cpu_idx(6, 3, 3 * 6 * 3 + 5 * 3 + 2), ==, - (3 << 5) | (5 << 2) | 2); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 1 * 6 * 3 + 0 * 3 + 0), ==, (1 << 5)); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 1 * 6 * 3 + 1 * 3 + 1), ==, (1 << 5) | (1 << 2) | 1); + g_assert_cmpuint(x86_apicid_from_cpu_idx(1, 6, 3, + 3 * 6 * 3 + 5 * 3 + 2), ==, (3 << 5) | (5 << 2) | 2); } int main(int argc, char **argv) -- cgit v1.2.3-55-g7522