| Fenghua Yu | 113c609 | 2016-10-22 06:19:54 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_INTEL_RDT_H |
| 2 | #define _ASM_X86_INTEL_RDT_H |
| 3 | |
| 4 | #define IA32_L3_CBM_BASE 0xc90 |
| Fenghua Yu | c1c7c3f | 2016-10-22 06:19:55 -0700 | [diff] [blame^] | 5 | #define IA32_L2_CBM_BASE 0xd10 |
| Fenghua Yu | 113c609 | 2016-10-22 06:19:54 -0700 | [diff] [blame] | 6 | |
| Fenghua Yu | c1c7c3f | 2016-10-22 06:19:55 -0700 | [diff] [blame^] | 7 | /** |
| 8 | * struct rdt_resource - attributes of an RDT resource |
| 9 | * @enabled: Is this feature enabled on this machine |
| 10 | * @capable: Is this feature available on this machine |
| 11 | * @name: Name to use in "schemata" file |
| 12 | * @num_closid: Number of CLOSIDs available |
| 13 | * @max_cbm: Largest Cache Bit Mask allowed |
| 14 | * @min_cbm_bits: Minimum number of consecutive bits to be set |
| 15 | * in a cache bit mask |
| 16 | * @domains: All domains for this resource |
| 17 | * @num_domains: Number of domains active |
| 18 | * @msr_base: Base MSR address for CBMs |
| 19 | * @tmp_cbms: Scratch space when updating schemata |
| 20 | * @cache_level: Which cache level defines scope of this domain |
| 21 | * @cbm_idx_multi: Multiplier of CBM index |
| 22 | * @cbm_idx_offset: Offset of CBM index. CBM index is computed by: |
| 23 | * closid * cbm_idx_multi + cbm_idx_offset |
| 24 | */ |
| 25 | struct rdt_resource { |
| 26 | bool enabled; |
| 27 | bool capable; |
| 28 | char *name; |
| 29 | int num_closid; |
| 30 | int cbm_len; |
| 31 | int min_cbm_bits; |
| 32 | u32 max_cbm; |
| 33 | struct list_head domains; |
| 34 | int num_domains; |
| 35 | int msr_base; |
| 36 | u32 *tmp_cbms; |
| 37 | int cache_level; |
| 38 | int cbm_idx_multi; |
| 39 | int cbm_idx_offset; |
| 40 | }; |
| 41 | |
| 42 | extern struct rdt_resource rdt_resources_all[]; |
| 43 | |
| 44 | enum { |
| 45 | RDT_RESOURCE_L3, |
| 46 | RDT_RESOURCE_L3DATA, |
| 47 | RDT_RESOURCE_L3CODE, |
| 48 | RDT_RESOURCE_L2, |
| 49 | |
| 50 | /* Must be the last */ |
| 51 | RDT_NUM_RESOURCES, |
| 52 | }; |
| 53 | |
| 54 | #define for_each_capable_rdt_resource(r) \ |
| 55 | for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ |
| 56 | r++) \ |
| 57 | if (r->capable) |
| 58 | |
| 59 | /* CPUID.(EAX=10H, ECX=ResID=1).EAX */ |
| 60 | union cpuid_0x10_1_eax { |
| 61 | struct { |
| 62 | unsigned int cbm_len:5; |
| 63 | } split; |
| 64 | unsigned int full; |
| 65 | }; |
| 66 | |
| 67 | /* CPUID.(EAX=10H, ECX=ResID=1).EDX */ |
| 68 | union cpuid_0x10_1_edx { |
| 69 | struct { |
| 70 | unsigned int cos_max:16; |
| 71 | } split; |
| 72 | unsigned int full; |
| 73 | }; |
| Fenghua Yu | 113c609 | 2016-10-22 06:19:54 -0700 | [diff] [blame] | 74 | #endif /* _ASM_X86_INTEL_RDT_H */ |