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 <like.xu@linux.intel.com>
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 <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

1 files changed, 45 insertions, 39 deletions

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)