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MdePkg: Add some comments for LoongArch exceptions 

Added some comments for registing LoongArch exceptions.

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Chao Li 2024-01-08 11:32:53 +08:00 committed by Liming Gao
parent 3f8fb8aeb9
commit f560c5d112
1 changed files with 14 additions and 0 deletions
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14
MdePkg/Include/Protocol/DebugSupport.h
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@ -683,6 +683,20 @@ typedef struct {
// //
// LoongArch processor exception types. // LoongArch processor exception types.
// //
// The exception types is located in the CSR ESTAT
// register offset 16 bits, width 6 bits.
//
// If you want to register an exception hook, you can
// shfit the number left by 16 bits, and the exception
// handler will know the types.
//
// For example:
// mCpu->CpuRegisterInterruptHandler (
// mCpu,
// (EXCEPT_LOONGARCH_PPI << CSR_ESTAT_EXC_SHIFT),
// PpiExceptionHandler
// );
//
#define EXCEPT_LOONGARCH_INT 0 #define EXCEPT_LOONGARCH_INT 0
#define EXCEPT_LOONGARCH_PIL 1 #define EXCEPT_LOONGARCH_PIL 1
#define EXCEPT_LOONGARCH_PIS 2 #define EXCEPT_LOONGARCH_PIS 2