diff options
| author | Zhao Liu <zhao1.liu@intel.com> | 2024-11-01 16:33:24 +0800 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <philmd@linaro.org> | 2024-11-05 23:32:25 +0000 |
| commit | e823ebe77d8f38b181a3c277d5dd9399748bf566 (patch) | |
| tree | 8e6942357c6c37da32aa28b182600779dd81f5d0 /include | |
| parent | 34230ce5a97b898a53032b958841e74fde0bdac1 (diff) | |
hw/core: Make CPU topology enumeration arch-agnostic
Cache topology needs to be defined based on CPU topology levels. Thus,
define CPU topology enumeration in qapi/machine.json to make it generic
for all architectures.
To match the general topology naming style, rename CPU_TOPO_LEVEL_* to
CPU_TOPOLOGY_LEVEL_*, and rename SMT and package levels to thread and
socket.
Also, enumerate additional topology levels for non-i386 arches, and add
a CPU_TOPOLOGY_LEVEL_DEFAULT to help future smp-cache object to work
with compatibility requirement of arch-specific cache topology models.
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Tested-by: Yongwei Ma <yongwei.ma@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20241101083331.340178-3-zhao1.liu@intel.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/topology.h | 23 |
1 files changed, 4 insertions, 19 deletions
diff --git a/include/hw/i386/topology.h b/include/hw/i386/topology.h index 48b43edc5a..b2c8bf2de1 100644 --- a/include/hw/i386/topology.h +++ b/include/hw/i386/topology.h @@ -39,7 +39,7 @@ * CPUID Fn8000_0008_ECX[ApicIdCoreIdSize[3:0]] is set to apicid_core_width(). */ - +#include "qapi/qapi-types-machine-common.h" #include "qemu/bitops.h" /* @@ -62,22 +62,7 @@ typedef struct X86CPUTopoInfo { unsigned threads_per_core; } X86CPUTopoInfo; -#define CPU_TOPO_LEVEL_INVALID CPU_TOPO_LEVEL_MAX - -/* - * CPUTopoLevel is the general i386 topology hierarchical representation, - * ordered by increasing hierarchical relationship. - * Its enumeration value is not bound to the type value of Intel (CPUID[0x1F]) - * or AMD (CPUID[0x80000026]). - */ -enum CPUTopoLevel { - CPU_TOPO_LEVEL_SMT, - CPU_TOPO_LEVEL_CORE, - CPU_TOPO_LEVEL_MODULE, - CPU_TOPO_LEVEL_DIE, - CPU_TOPO_LEVEL_PACKAGE, - CPU_TOPO_LEVEL_MAX, -}; +#define CPU_TOPOLOGY_LEVEL_INVALID CPU_TOPOLOGY_LEVEL__MAX /* Return the bit width needed for 'count' IDs */ static unsigned apicid_bitwidth_for_count(unsigned count) @@ -213,8 +198,8 @@ static inline apic_id_t x86_apicid_from_cpu_idx(X86CPUTopoInfo *topo_info, */ static inline bool x86_has_extended_topo(unsigned long *topo_bitmap) { - return test_bit(CPU_TOPO_LEVEL_MODULE, topo_bitmap) || - test_bit(CPU_TOPO_LEVEL_DIE, topo_bitmap); + return test_bit(CPU_TOPOLOGY_LEVEL_MODULE, topo_bitmap) || + test_bit(CPU_TOPOLOGY_LEVEL_DIE, topo_bitmap); } #endif /* HW_I386_TOPOLOGY_H */ |