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authorLeon Alrae <leon.alrae@imgtec.com>2016-03-15 09:59:31 +0000
committerLeon Alrae <leon.alrae@imgtec.com>2016-03-30 09:13:59 +0100
commit2edd5261fffcc8494936d353ffffe996d191da3b (patch)
tree7ebf59fda5c336be17eb6b056b99235d57520c94 /include/hw/misc/mips_cmgcr.h
parent1f93a6e4f3f4da3c2ce4be1d300dcfe3e6dd0e77 (diff)
downloadfocaccia-qemu-2edd5261fffcc8494936d353ffffe996d191da3b.tar.gz
focaccia-qemu-2edd5261fffcc8494936d353ffffe996d191da3b.zip
hw/mips/cps: create CPC block inside CPS
Create Cluster Power Controller and add a link to the CPC MemoryRegion
in GCR. Guest can enable / map CPC to any physical address by writing to
the memory-mapped GCR_CPC_BASE register.

Set vp-start-reset property to 1 to allow only first VP to run from reset.
Others are brought up by the guest via CPC memory-mapped registers.

Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Diffstat (limited to 'include/hw/misc/mips_cmgcr.h')
-rw-r--r--include/hw/misc/mips_cmgcr.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/hw/misc/mips_cmgcr.h b/include/hw/misc/mips_cmgcr.h
index 69403c3880..cc60eefa53 100644
--- a/include/hw/misc/mips_cmgcr.h
+++ b/include/hw/misc/mips_cmgcr.h
@@ -26,6 +26,8 @@
 #define GCR_CONFIG_OFS      0x0000
 #define GCR_BASE_OFS        0x0008
 #define GCR_REV_OFS         0x0030
+#define GCR_CPC_BASE_OFS    0x0088
+#define GCR_CPC_STATUS_OFS  0x00F0
 #define GCR_L2_CONFIG_OFS   0x0130
 
 /* Core Local and Core Other Block Register Map */
@@ -36,6 +38,11 @@
 #define GCR_L2_CONFIG_BYPASS_SHF    20
 #define GCR_L2_CONFIG_BYPASS_MSK    ((0x1ULL) << GCR_L2_CONFIG_BYPASS_SHF)
 
+/* GCR_CPC_BASE register fields */
+#define GCR_CPC_BASE_CPCEN_MSK   1
+#define GCR_CPC_BASE_CPCBASE_MSK 0xFFFFFFFF8000ULL
+#define GCR_CPC_BASE_MSK (GCR_CPC_BASE_CPCEN_MSK | GCR_CPC_BASE_CPCBASE_MSK)
+
 typedef struct MIPSGCRState MIPSGCRState;
 struct MIPSGCRState {
     SysBusDevice parent_obj;
@@ -44,6 +51,9 @@ struct MIPSGCRState {
     int32_t num_vps;
     hwaddr gcr_base;
     MemoryRegion iomem;
+    MemoryRegion *cpc_mr;
+
+    uint64_t cpc_base;
 };
 
 #endif /* _MIPS_GCR_H */