KVM: x86/pmu: Use BIT_ULL() instead of open coded equivalents

Replace a variety of "1ull << N" and "(u64)1 << N" snippets with BIT_ULL()
in the PMU code.

No functional change intended.

Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
[sean: split to separate patch, write changelog]
Tested-by: Xudong Hao <xudong.hao@intel.com>
Link: https://lore.kernel.org/r/20250806195706.1650976-30-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: Dapeng Mi

arch/x86/kvm/svm/pmu.c

@@ -200,11 +200,11 @@ static void amd_pmu_refresh(struct kvm_vcpu *vcpu)
 					 kvm_pmu_cap.num_counters_gp);
 
 	if (pmu->version > 1) {
-		pmu->global_ctrl_rsvd = ~((1ull << pmu->nr_arch_gp_counters) - 1);
+		pmu->global_ctrl_rsvd = ~(BIT_ULL(pmu->nr_arch_gp_counters) - 1);
 		pmu->global_status_rsvd = pmu->global_ctrl_rsvd;
 	}
 
-	pmu->counter_bitmask[KVM_PMC_GP] = ((u64)1 << 48) - 1;
+	pmu->counter_bitmask[KVM_PMC_GP] = BIT_ULL(48) - 1;
 	pmu->reserved_bits = 0xfffffff000280000ull;
 	pmu->raw_event_mask = AMD64_RAW_EVENT_MASK;
 	/* not applicable to AMD; but clean them to prevent any fall out */

arch/x86/kvm/vmx/pmu_intel.c

@@ -536,11 +536,10 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu)
 					 kvm_pmu_cap.num_counters_gp);
 	eax.split.bit_width = min_t(int, eax.split.bit_width,
 				    kvm_pmu_cap.bit_width_gp);
-	pmu->counter_bitmask[KVM_PMC_GP] = ((u64)1 << eax.split.bit_width) - 1;
+	pmu->counter_bitmask[KVM_PMC_GP] = BIT_ULL(eax.split.bit_width) - 1;
 	eax.split.mask_length = min_t(int, eax.split.mask_length,
 				      kvm_pmu_cap.events_mask_len);
-	pmu->available_event_types = ~entry->ebx &
-					((1ull << eax.split.mask_length) - 1);
+	pmu->available_event_types = ~entry->ebx & (BIT_ULL(eax.split.mask_length) - 1);
 
 	if (pmu->version == 1) {
 		pmu->nr_arch_fixed_counters = 0;
@@ -549,16 +548,15 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu)
 						    kvm_pmu_cap.num_counters_fixed);
 		edx.split.bit_width_fixed = min_t(int, edx.split.bit_width_fixed,
 						  kvm_pmu_cap.bit_width_fixed);
-		pmu->counter_bitmask[KVM_PMC_FIXED] =
-			((u64)1 << edx.split.bit_width_fixed) - 1;
+		pmu->counter_bitmask[KVM_PMC_FIXED] = BIT_ULL(edx.split.bit_width_fixed) - 1;
 	}
 
 	intel_pmu_enable_fixed_counter_bits(pmu, INTEL_FIXED_0_KERNEL |
 						 INTEL_FIXED_0_USER |
 						 INTEL_FIXED_0_ENABLE_PMI);
 
-	counter_rsvd = ~(((1ull << pmu->nr_arch_gp_counters) - 1) |
-		(((1ull << pmu->nr_arch_fixed_counters) - 1) << KVM_FIXED_PMC_BASE_IDX));
+	counter_rsvd = ~((BIT_ULL(pmu->nr_arch_gp_counters) - 1) |
+			 ((BIT_ULL(pmu->nr_arch_fixed_counters) - 1) << KVM_FIXED_PMC_BASE_IDX));
 	pmu->global_ctrl_rsvd = counter_rsvd;
 
 	/*
@@ -603,8 +601,7 @@ static void intel_pmu_refresh(struct kvm_vcpu *vcpu)
 			pmu->pebs_data_cfg_rsvd = ~0xff00000full;
 			intel_pmu_enable_fixed_counter_bits(pmu, ICL_FIXED_0_ADAPTIVE);
 		} else {
-			pmu->pebs_enable_rsvd =
-				~((1ull << pmu->nr_arch_gp_counters) - 1);
+			pmu->pebs_enable_rsvd = ~(BIT_ULL(pmu->nr_arch_gp_counters) - 1);
 		}
 	}
 }