diff mbox series

[07/13] RISC-V: Add defines for the SBI nested acceleration extension

Message ID 20240719160913.342027-8-apatel@ventanamicro.com (mailing list archive)
State New, archived
Headers show
Series Accelerate KVM RISC-V when running as a guest | expand

Commit Message

Anup Patel July 19, 2024, 4:09 p.m. UTC 
Add defines for the new SBI nested acceleration extension which was
ratified as part of the SBI v2.0 specification.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
 arch/riscv/include/asm/sbi.h | 120 +++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)

Comments

Atish Patra Oct. 17, 2024, 11:55 p.m. UTC | #1 
On Fri, Jul 19, 2024 at 9:09 AM Anup Patel <apatel@ventanamicro.com> wrote:
>
> Add defines for the new SBI nested acceleration extension which was
> ratified as part of the SBI v2.0 specification.
>
> Signed-off-by: Anup Patel <apatel@ventanamicro.com>
> ---
>  arch/riscv/include/asm/sbi.h | 120 +++++++++++++++++++++++++++++++++++
>  1 file changed, 120 insertions(+)
>
> diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
> index 1079e214fe85..7c9ec953c519 100644
> --- a/arch/riscv/include/asm/sbi.h
> +++ b/arch/riscv/include/asm/sbi.h
> @@ -33,6 +33,7 @@ enum sbi_ext_id {
>         SBI_EXT_PMU = 0x504D55,
>         SBI_EXT_DBCN = 0x4442434E,
>         SBI_EXT_STA = 0x535441,
> +       SBI_EXT_NACL = 0x4E41434C,
>
>         /* Experimentals extensions must lie within this range */
>         SBI_EXT_EXPERIMENTAL_START = 0x08000000,
> @@ -279,6 +280,125 @@ struct sbi_sta_struct {
>
>  #define SBI_SHMEM_DISABLE              -1
>
> +enum sbi_ext_nacl_fid {
> +       SBI_EXT_NACL_PROBE_FEATURE = 0x0,
> +       SBI_EXT_NACL_SET_SHMEM = 0x1,
> +       SBI_EXT_NACL_SYNC_CSR = 0x2,
> +       SBI_EXT_NACL_SYNC_HFENCE = 0x3,
> +       SBI_EXT_NACL_SYNC_SRET = 0x4,
> +};
> +
> +enum sbi_ext_nacl_feature {
> +       SBI_NACL_FEAT_SYNC_CSR = 0x0,
> +       SBI_NACL_FEAT_SYNC_HFENCE = 0x1,
> +       SBI_NACL_FEAT_SYNC_SRET = 0x2,
> +       SBI_NACL_FEAT_AUTOSWAP_CSR = 0x3,
> +};
> +
> +#define SBI_NACL_SHMEM_ADDR_SHIFT      12
> +#define SBI_NACL_SHMEM_SCRATCH_OFFSET  0x0000
> +#define SBI_NACL_SHMEM_SCRATCH_SIZE    0x1000
> +#define SBI_NACL_SHMEM_SRET_OFFSET     0x0000
> +#define SBI_NACL_SHMEM_SRET_SIZE       0x0200
> +#define SBI_NACL_SHMEM_AUTOSWAP_OFFSET (SBI_NACL_SHMEM_SRET_OFFSET + \
> +                                        SBI_NACL_SHMEM_SRET_SIZE)
> +#define SBI_NACL_SHMEM_AUTOSWAP_SIZE   0x0080
> +#define SBI_NACL_SHMEM_UNUSED_OFFSET   (SBI_NACL_SHMEM_AUTOSWAP_OFFSET + \
> +                                        SBI_NACL_SHMEM_AUTOSWAP_SIZE)
> +#define SBI_NACL_SHMEM_UNUSED_SIZE     0x0580
> +#define SBI_NACL_SHMEM_HFENCE_OFFSET   (SBI_NACL_SHMEM_UNUSED_OFFSET + \
> +                                        SBI_NACL_SHMEM_UNUSED_SIZE)
> +#define SBI_NACL_SHMEM_HFENCE_SIZE     0x0780
> +#define SBI_NACL_SHMEM_DBITMAP_OFFSET  (SBI_NACL_SHMEM_HFENCE_OFFSET + \
> +                                        SBI_NACL_SHMEM_HFENCE_SIZE)
> +#define SBI_NACL_SHMEM_DBITMAP_SIZE    0x0080
> +#define SBI_NACL_SHMEM_CSR_OFFSET      (SBI_NACL_SHMEM_DBITMAP_OFFSET + \
> +                                        SBI_NACL_SHMEM_DBITMAP_SIZE)
> +#define SBI_NACL_SHMEM_CSR_SIZE                ((__riscv_xlen / 8) * 1024)
> +#define SBI_NACL_SHMEM_SIZE            (SBI_NACL_SHMEM_CSR_OFFSET + \
> +                                        SBI_NACL_SHMEM_CSR_SIZE)
> +
> +#define SBI_NACL_SHMEM_CSR_INDEX(__csr_num)    \
> +               ((((__csr_num) & 0xc00) >> 2) | ((__csr_num) & 0xff))
> +
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY_SZ         ((__riscv_xlen / 8) * 4)
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY_MAX                \
> +               (SBI_NACL_SHMEM_HFENCE_SIZE /   \
> +                SBI_NACL_SHMEM_HFENCE_ENTRY_SZ)
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY(__num)     \
> +               (SBI_NACL_SHMEM_HFENCE_OFFSET + \
> +                (__num) * SBI_NACL_SHMEM_HFENCE_ENTRY_SZ)
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY_CONFIG(__num)      \
> +               SBI_NACL_SHMEM_HFENCE_ENTRY(__num)
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY_PNUM(__num)\
> +               (SBI_NACL_SHMEM_HFENCE_ENTRY(__num) + (__riscv_xlen / 8))
> +#define SBI_NACL_SHMEM_HFENCE_ENTRY_PCOUNT(__num)\
> +               (SBI_NACL_SHMEM_HFENCE_ENTRY(__num) + \
> +                ((__riscv_xlen / 8) * 3))
> +
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS 1
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT        \
> +               (__riscv_xlen - SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS)
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_MASK \
> +               ((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS) - 1)
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND              \
> +               (SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_MASK << \
> +                SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT)
> +
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_BITS        3
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_SHIFT \
> +               (SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT - \
> +                SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_BITS)
> +
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS 4
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_SHIFT        \
> +               (SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_SHIFT - \
> +                SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS)
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_MASK \
> +               ((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS) - 1)
> +
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA                0x0
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_ALL    0x1
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_VMID   0x2
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_VMID_ALL 0x3
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA                0x4
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ALL    0x5
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ASID   0x6
> +#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ASID_ALL 0x7
> +
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_BITS        1
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_SHIFT \
> +               (SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_SHIFT - \
> +                SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_BITS)
> +
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS        7
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_SHIFT \
> +               (SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_SHIFT - \
> +                SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS)
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_MASK        \
> +               ((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS) - 1)
> +#define SBI_NACL_SHMEM_HFENCE_ORDER_BASE       12
> +
> +#if __riscv_xlen == 32
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS 9
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS 7
> +#else
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS 16
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS 14
> +#endif
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_SHIFT        \
> +                               SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_MASK \
> +               ((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS) - 1)
> +#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_MASK \
> +               ((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS) - 1)
> +
> +#define SBI_NACL_SHMEM_AUTOSWAP_FLAG_HSTATUS   BIT(0)
> +#define SBI_NACL_SHMEM_AUTOSWAP_HSTATUS                ((__riscv_xlen / 8) * 1)
> +
> +#define SBI_NACL_SHMEM_SRET_X(__i)             ((__riscv_xlen / 8) * (__i))
> +#define SBI_NACL_SHMEM_SRET_X_LAST             31
> +
>  /* SBI spec version fields */
>  #define SBI_SPEC_VERSION_DEFAULT       0x1
>  #define SBI_SPEC_VERSION_MAJOR_SHIFT   24
> --
> 2.34.1
>


Reviewed-by: Atish Patra <atishp@rivosinc.com>
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 1079e214fe85..7c9ec953c519 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -33,6 +33,7 @@  enum sbi_ext_id {
 	SBI_EXT_PMU = 0x504D55,
 	SBI_EXT_DBCN = 0x4442434E,
 	SBI_EXT_STA = 0x535441,
+	SBI_EXT_NACL = 0x4E41434C,
 
 	/* Experimentals extensions must lie within this range */
 	SBI_EXT_EXPERIMENTAL_START = 0x08000000,
@@ -279,6 +280,125 @@  struct sbi_sta_struct {
 
 #define SBI_SHMEM_DISABLE		-1
 
+enum sbi_ext_nacl_fid {
+	SBI_EXT_NACL_PROBE_FEATURE = 0x0,
+	SBI_EXT_NACL_SET_SHMEM = 0x1,
+	SBI_EXT_NACL_SYNC_CSR = 0x2,
+	SBI_EXT_NACL_SYNC_HFENCE = 0x3,
+	SBI_EXT_NACL_SYNC_SRET = 0x4,
+};
+
+enum sbi_ext_nacl_feature {
+	SBI_NACL_FEAT_SYNC_CSR = 0x0,
+	SBI_NACL_FEAT_SYNC_HFENCE = 0x1,
+	SBI_NACL_FEAT_SYNC_SRET = 0x2,
+	SBI_NACL_FEAT_AUTOSWAP_CSR = 0x3,
+};
+
+#define SBI_NACL_SHMEM_ADDR_SHIFT	12
+#define SBI_NACL_SHMEM_SCRATCH_OFFSET	0x0000
+#define SBI_NACL_SHMEM_SCRATCH_SIZE	0x1000
+#define SBI_NACL_SHMEM_SRET_OFFSET	0x0000
+#define SBI_NACL_SHMEM_SRET_SIZE	0x0200
+#define SBI_NACL_SHMEM_AUTOSWAP_OFFSET	(SBI_NACL_SHMEM_SRET_OFFSET + \
+					 SBI_NACL_SHMEM_SRET_SIZE)
+#define SBI_NACL_SHMEM_AUTOSWAP_SIZE	0x0080
+#define SBI_NACL_SHMEM_UNUSED_OFFSET	(SBI_NACL_SHMEM_AUTOSWAP_OFFSET + \
+					 SBI_NACL_SHMEM_AUTOSWAP_SIZE)
+#define SBI_NACL_SHMEM_UNUSED_SIZE	0x0580
+#define SBI_NACL_SHMEM_HFENCE_OFFSET	(SBI_NACL_SHMEM_UNUSED_OFFSET + \
+					 SBI_NACL_SHMEM_UNUSED_SIZE)
+#define SBI_NACL_SHMEM_HFENCE_SIZE	0x0780
+#define SBI_NACL_SHMEM_DBITMAP_OFFSET	(SBI_NACL_SHMEM_HFENCE_OFFSET + \
+					 SBI_NACL_SHMEM_HFENCE_SIZE)
+#define SBI_NACL_SHMEM_DBITMAP_SIZE	0x0080
+#define SBI_NACL_SHMEM_CSR_OFFSET	(SBI_NACL_SHMEM_DBITMAP_OFFSET + \
+					 SBI_NACL_SHMEM_DBITMAP_SIZE)
+#define SBI_NACL_SHMEM_CSR_SIZE		((__riscv_xlen / 8) * 1024)
+#define SBI_NACL_SHMEM_SIZE		(SBI_NACL_SHMEM_CSR_OFFSET + \
+					 SBI_NACL_SHMEM_CSR_SIZE)
+
+#define SBI_NACL_SHMEM_CSR_INDEX(__csr_num)	\
+		((((__csr_num) & 0xc00) >> 2) | ((__csr_num) & 0xff))
+
+#define SBI_NACL_SHMEM_HFENCE_ENTRY_SZ		((__riscv_xlen / 8) * 4)
+#define SBI_NACL_SHMEM_HFENCE_ENTRY_MAX		\
+		(SBI_NACL_SHMEM_HFENCE_SIZE /	\
+		 SBI_NACL_SHMEM_HFENCE_ENTRY_SZ)
+#define SBI_NACL_SHMEM_HFENCE_ENTRY(__num)	\
+		(SBI_NACL_SHMEM_HFENCE_OFFSET +	\
+		 (__num) * SBI_NACL_SHMEM_HFENCE_ENTRY_SZ)
+#define SBI_NACL_SHMEM_HFENCE_ENTRY_CONFIG(__num)	\
+		SBI_NACL_SHMEM_HFENCE_ENTRY(__num)
+#define SBI_NACL_SHMEM_HFENCE_ENTRY_PNUM(__num)\
+		(SBI_NACL_SHMEM_HFENCE_ENTRY(__num) + (__riscv_xlen / 8))
+#define SBI_NACL_SHMEM_HFENCE_ENTRY_PCOUNT(__num)\
+		(SBI_NACL_SHMEM_HFENCE_ENTRY(__num) + \
+		 ((__riscv_xlen / 8) * 3))
+
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS	1
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT	\
+		(__riscv_xlen - SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS)
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_MASK	\
+		((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_BITS) - 1)
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_PEND		\
+		(SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_MASK << \
+		 SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT)
+
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_BITS	3
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_SHIFT \
+		(SBI_NACL_SHMEM_HFENCE_CONFIG_PEND_SHIFT - \
+		 SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_BITS)
+
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS	4
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_SHIFT	\
+		(SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD1_SHIFT - \
+		 SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS)
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_MASK	\
+		((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_BITS) - 1)
+
+#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA		0x0
+#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_ALL	0x1
+#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_VMID	0x2
+#define SBI_NACL_SHMEM_HFENCE_TYPE_GVMA_VMID_ALL 0x3
+#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA		0x4
+#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ALL	0x5
+#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ASID	0x6
+#define SBI_NACL_SHMEM_HFENCE_TYPE_VVMA_ASID_ALL 0x7
+
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_BITS	1
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_SHIFT \
+		(SBI_NACL_SHMEM_HFENCE_CONFIG_TYPE_SHIFT - \
+		 SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_BITS)
+
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS	7
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_SHIFT \
+		(SBI_NACL_SHMEM_HFENCE_CONFIG_RSVD2_SHIFT - \
+		 SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS)
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_MASK	\
+		((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_ORDER_BITS) - 1)
+#define SBI_NACL_SHMEM_HFENCE_ORDER_BASE	12
+
+#if __riscv_xlen == 32
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS	9
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS	7
+#else
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS	16
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS	14
+#endif
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_SHIFT	\
+				SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_MASK	\
+		((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_ASID_BITS) - 1)
+#define SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_MASK	\
+		((1UL << SBI_NACL_SHMEM_HFENCE_CONFIG_VMID_BITS) - 1)
+
+#define SBI_NACL_SHMEM_AUTOSWAP_FLAG_HSTATUS	BIT(0)
+#define SBI_NACL_SHMEM_AUTOSWAP_HSTATUS		((__riscv_xlen / 8) * 1)
+
+#define SBI_NACL_SHMEM_SRET_X(__i)		((__riscv_xlen / 8) * (__i))
+#define SBI_NACL_SHMEM_SRET_X_LAST		31
+
 /* SBI spec version fields */
 #define SBI_SPEC_VERSION_DEFAULT	0x1
 #define SBI_SPEC_VERSION_MAJOR_SHIFT	24