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lib: Emulate HTIMEDELTA CSR for platforms not having TIME CSR

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For platforms not having TIME CSR, we trap-n-emulate TIME CSR
read/write in OpenSBI. Same rationale applies to HTIMEDELTA CSR
as well so we trap-n-emulate HTIMEDELTA CSR for platforms not
having TIME CSR.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Anup Patel authored and Anup Patel committed 2019-09-30 15:36:14 +05:30
1 parent 7d4420bd69
commit 1e9f88889f
6 files changed
+124 -19
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include/sbi/riscv_encoding.h
+3 -1
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@@ -276,7 +276,9 @@
#define CSR_HSTATUS 0x600
#define CSR_HEDELEG 0x602
#define CSR_HIDELEG 0x603
#define CSR_HCOUNTERNEN 0x606
#define CSR_HTIMEDELTA 0x605
#define CSR_HTIMEDELTAH 0x615
#define CSR_HCOUNTERNEN 0x606
#define CSR_HGATP 0x680
#define CSR_VSSTATUS 0x200