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Re: [PATCH 1/5] hw/cxl: Update HDM Decoder capability to version 3
From: |
fan |
Subject: |
Re: [PATCH 1/5] hw/cxl: Update HDM Decoder capability to version 3 |
Date: |
Wed, 24 Jan 2024 10:08:50 -0800 |
On Wed, Jan 24, 2024 at 01:48:10PM +0000, Jonathan Cameron wrote:
> Part of standardizing the QEMU code on CXL r3.1.
> No fuctional changes as everything added is optional and
> it is set as not implemented.
>
> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
> ---
Reviewed-by: Fan Ni <fan.ni@samsung.com>
> include/hw/cxl/cxl_component.h | 16 ++++++++++++++--
> hw/cxl/cxl-component-utils.c | 10 +++++++++-
> 2 files changed, 23 insertions(+), 3 deletions(-)
>
> diff --git a/include/hw/cxl/cxl_component.h b/include/hw/cxl/cxl_component.h
> index 5227a8e833..7d3edef1bf 100644
> --- a/include/hw/cxl/cxl_component.h
> +++ b/include/hw/cxl/cxl_component.h
> @@ -109,8 +109,9 @@ REG32(CXL_RAS_ERR_HEADER0, CXL_RAS_REGISTERS_OFFSET +
> 0x18)
> (CXL_SEC_REGISTERS_OFFSET + CXL_SEC_REGISTERS_SIZE)
> #define CXL_LINK_REGISTERS_SIZE 0x38
>
> -/* 8.2.5.12 - CXL HDM Decoder Capability Structure */
> -#define HDM_DECODE_MAX 10 /* 8.2.5.12.1 */
> +/* CXL r3.1 Section 8.2.4.20: CXL HDM Decoder Capability Structure */
> +#define HDM_DECODE_MAX 10 /* Maximum decoders for Devices */
> +#define CXL_HDM_CAPABILITY_VERSION 3
> #define CXL_HDM_REGISTERS_OFFSET \
> (CXL_LINK_REGISTERS_OFFSET + CXL_LINK_REGISTERS_SIZE)
> #define CXL_HDM_REGISTERS_SIZE (0x10 + 0x20 * HDM_DECODE_MAX)
> @@ -133,6 +134,11 @@ REG32(CXL_RAS_ERR_HEADER0, CXL_RAS_REGISTERS_OFFSET +
> 0x18)
> FIELD(CXL_HDM_DECODER##n##_CTRL, COMMITTED, 10, 1)
> \
> FIELD(CXL_HDM_DECODER##n##_CTRL, ERR, 11, 1)
> \
> FIELD(CXL_HDM_DECODER##n##_CTRL, TYPE, 12, 1)
> \
> + FIELD(CXL_HDM_DECODER##n##_CTRL, BI, 13, 1)
> \
> + FIELD(CXL_HDM_DECODER##n##_CTRL, UIO, 14, 1)
> \
> + FIELD(CXL_HDM_DECODER##n##_CTRL, UIG, 16, 4)
> \
> + FIELD(CXL_HDM_DECODER##n##_CTRL, UIW, 20, 4)
> \
> + FIELD(CXL_HDM_DECODER##n##_CTRL, ISP, 24, 4)
> \
> REG32(CXL_HDM_DECODER##n##_TARGET_LIST_LO,
> \
> CXL_HDM_REGISTERS_OFFSET + (0x20 * n) + 0x24)
> \
> REG32(CXL_HDM_DECODER##n##_TARGET_LIST_HI,
> \
> @@ -148,6 +154,12 @@ REG32(CXL_HDM_DECODER_CAPABILITY,
> CXL_HDM_REGISTERS_OFFSET)
> FIELD(CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_256B, 8, 1)
> FIELD(CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_4K, 9, 1)
> FIELD(CXL_HDM_DECODER_CAPABILITY, POISON_ON_ERR_CAP, 10, 1)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, 3_6_12_WAY, 11, 1)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, 16_WAY, 12, 1)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, UIO, 13, 1)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, UIO_DECODER_COUNT, 16, 4)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, MEMDATA_NXM_CAP, 20, 1)
> + FIELD(CXL_HDM_DECODER_CAPABILITY, SUPPORTED_COHERENCY_MODEL, 21, 2)
> REG32(CXL_HDM_DECODER_GLOBAL_CONTROL, CXL_HDM_REGISTERS_OFFSET + 4)
> FIELD(CXL_HDM_DECODER_GLOBAL_CONTROL, POISON_ON_ERR_EN, 0, 1)
> FIELD(CXL_HDM_DECODER_GLOBAL_CONTROL, HDM_DECODER_ENABLE, 1, 1)
> diff --git a/hw/cxl/cxl-component-utils.c b/hw/cxl/cxl-component-utils.c
> index 5ddd47ed8d..a55cf5a036 100644
> --- a/hw/cxl/cxl-component-utils.c
> +++ b/hw/cxl/cxl-component-utils.c
> @@ -243,6 +243,14 @@ static void hdm_init_common(uint32_t *reg_state,
> uint32_t *write_msk,
> ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, INTERLEAVE_4K,
> 1);
> ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
> POISON_ON_ERR_CAP, 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, 3_6_12_WAY, 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, 16_WAY, 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, UIO, 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
> + UIO_DECODER_COUNT, 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY, MEMDATA_NXM_CAP,
> 0);
> + ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_CAPABILITY,
> + SUPPORTED_COHERENCY_MODEL, 0); /* Unknown */
> ARRAY_FIELD_DP32(reg_state, CXL_HDM_DECODER_GLOBAL_CONTROL,
> HDM_DECODER_ENABLE, 0);
> write_msk[R_CXL_HDM_DECODER_GLOBAL_CONTROL] = 0x3;
> @@ -326,7 +334,7 @@ void cxl_component_register_init_common(uint32_t
> *reg_state,
> return;
> }
>
> - init_cap_reg(HDM, 5, 1);
> + init_cap_reg(HDM, 5, CXL_HDM_CAPABILITY_VERSION);
> hdm_init_common(reg_state, write_msk, type);
>
> if (caps < 5) {
> --
> 2.39.2
>
- [PATCH 0/5 qemu] hw/cxl: Update CXL emulation to reflect and reference r3.1, Jonathan Cameron, 2024/01/24
- [PATCH 1/5] hw/cxl: Update HDM Decoder capability to version 3, Jonathan Cameron, 2024/01/24
- Re: [PATCH 1/5] hw/cxl: Update HDM Decoder capability to version 3,
fan <=
- [PATCH 2/5] hw/cxl: Update link register definitions., Jonathan Cameron, 2024/01/24
- [PATCH 3/5] hw/cxl: Update RAS Capability Definitions for version 3., Jonathan Cameron, 2024/01/24
- [PATCH 4/5] hw/cxl: Update mailbox status registers., Jonathan Cameron, 2024/01/24
- [PATCH 5/5] hw/cxl: Standardize all references on CXL r3.1 and minor updates, Jonathan Cameron, 2024/01/24