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Subject: Definition of the CSRs
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Date: Mon, 23 Dec 2024 16:55:30 +0530
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Hi,
I see the following in the code:
csr_read(sstatus)
csr_read(stval)
But I can=E2=80=99t figure out where these sstatus and stval are =
defined. I want to define CSRs for IMSIC. I am using hard coded values =
for now but want to get rid of them. How can I do that?
Regards
Himanshu
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From: Himanshu Chauhan <himanshu@thechauhan.dev>
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Subject: Re: Definition of the CSRs
Date: Mon, 23 Dec 2024 17:05:09 +0530
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> On 23 Dec 2024, at 16:55, Himanshu Chauhan <himanshu@thechauhan.dev> =
wrote:
>=20
> Hi,
>=20
> I see the following in the code:
>=20
> csr_read(sstatus)
> csr_read(stval)
>=20
> But I can=E2=80=99t figure out where these sstatus and stval are =
defined. I want to define CSRs for IMSIC. I am using hard coded values =
for now but want to get rid of them. How can I do that?
>=20
Something like this in my C file works okay:
#define IMSIC_CSR_SISELECT 0x150=20
#define IMSIC_CSR_SIREG 0x151
#define IMSIC_CSR_STOPEI 0x15c=20
#define IMSIC_CSR_STOPI 0xdb0
#ifdef DECLARE_CSR =20
DECLARE_CSR(siselect, IMSIC_SISELCT)
DECLARE_CSR(sireg, IMSIC_SIREG) =20
DECLARE_CSR(stopei, IMSIC_STOPEI)
DECLARE_CSR(stopi, IMSIC_STOPI)
#endif
Is this the right way to do it?
> Regards
> Himanshu
>=20