From: Lizhi Hou <lizhi.hou@amd.com>
To: Mario Limonciello <superm1@kernel.org>, <ogabbay@kernel.org>,
<quic_jhugo@quicinc.com>, <dri-devel@lists.freedesktop.org>,
<maciej.falkowski@linux.intel.com>
Cc: Max Zhen <max.zhen@amd.com>, <linux-kernel@vger.kernel.org>,
<sonal.santan@amd.com>
Subject: Re: [PATCH V2] accel/amdxdna: Get device revision to derive VBNV string
Date: Fri, 17 Apr 2026 09:17:41 -0700 [thread overview]
Message-ID: <24a7ee40-32d1-29b9-c5bb-4aa6a5b633e9@amd.com> (raw)
In-Reply-To: <e02b5212-d066-419c-9191-1ffe31329f54@kernel.org>
Applied to drm-misc-next
On 4/16/26 15:45, Mario Limonciello wrote:
>
>
> On 4/16/26 14:01, Lizhi Hou wrote:
>> From: Max Zhen <max.zhen@amd.com>
>>
>> Add support for querying the device revision from firmware.
>>
>> Use the returned revision to look up the VBNV string during device
>> initialization, and fall back to the default VBNV when the revision
>> query is not supported or no mapping is found.
>>
>> This allows the driver to report the accurate VBNV for devices that
>> share the same vendor/device ID but differ by hardware revision.
>>
>> Signed-off-by: Max Zhen <max.zhen@amd.com>
>> [Lizhi: Revise amdxdna_vbnv_init()]
>> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
> Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
>> ---
>> drivers/accel/amdxdna/aie.c | 30 +++++++++++++++++++++++++
>> drivers/accel/amdxdna/aie.h | 7 ++++++
>> drivers/accel/amdxdna/aie2_message.c | 25 +++++++++++++++++++++
>> drivers/accel/amdxdna/aie2_msg_priv.h | 23 +++++++++++++++++++
>> drivers/accel/amdxdna/aie2_pci.c | 17 ++++++++++++++
>> drivers/accel/amdxdna/aie2_pci.h | 3 +++
>> drivers/accel/amdxdna/aie4_pci.c | 1 +
>> drivers/accel/amdxdna/amdxdna_pci_drv.h | 6 ++++-
>> drivers/accel/amdxdna/amdxdna_sysfs.c | 5 ++++-
>> drivers/accel/amdxdna/npu1_regs.c | 2 +-
>> drivers/accel/amdxdna/npu3_regs.c | 2 +-
>> drivers/accel/amdxdna/npu4_regs.c | 16 ++++++++++++-
>> drivers/accel/amdxdna/npu5_regs.c | 3 ++-
>> drivers/accel/amdxdna/npu6_regs.c | 3 ++-
>> 14 files changed, 136 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/accel/amdxdna/aie.c b/drivers/accel/amdxdna/aie.c
>> index 4b3d4493128e..66849ba9026a 100644
>> --- a/drivers/accel/amdxdna/aie.c
>> +++ b/drivers/accel/amdxdna/aie.c
>> @@ -87,3 +87,33 @@ int aie_check_protocol(struct aie_device *aie, u32
>> fw_major, u32 fw_minor)
>> return found ? 0 : -EOPNOTSUPP;
>> }
>> +
>> +static void amdxdna_update_vbnv(struct amdxdna_dev *xdna,
>> + const struct amdxdna_rev_vbnv *tbl,
>> + u32 rev)
>> +{
>> + int i;
>> +
>> + for (i = 0; tbl[i].vbnv; i++) {
>> + if (tbl[i].revision == rev) {
>> + xdna->vbnv = tbl[i].vbnv;
>> + break;
>> + }
>> + }
>> +}
>> +
>> +void amdxdna_vbnv_init(struct amdxdna_dev *xdna)
>> +{
>> + const struct amdxdna_dev_info *info = xdna->dev_info;
>> + u32 rev;
>> +
>> + xdna->vbnv = info->default_vbnv;
>> +
>> + if (!info->ops->get_dev_revision || !info->rev_vbnv_tbl)
>> + return;
>> +
>> + if (info->ops->get_dev_revision(xdna, &rev))
>> + return;
>> +
>> + amdxdna_update_vbnv(xdna, info->rev_vbnv_tbl, rev);
>> +}
>> diff --git a/drivers/accel/amdxdna/aie.h b/drivers/accel/amdxdna/aie.h
>> index ba4c9ee21823..7a68b114f235 100644
>> --- a/drivers/accel/amdxdna/aie.h
>> +++ b/drivers/accel/amdxdna/aie.h
>> @@ -82,11 +82,18 @@ struct psp_config {
>> u32 notify_val;
>> };
>> +/* Device revision to VBNV string mapping table entry */
>> +struct amdxdna_rev_vbnv {
>> + u32 revision;
>> + const char *vbnv;
>> +};
>> +
>> /* aie.c */
>> void aie_dump_mgmt_chann_debug(struct aie_device *aie);
>> void aie_destroy_chann(struct aie_device *aie, struct
>> mailbox_channel **chann);
>> int aie_send_mgmt_msg_wait(struct aie_device *aie, struct
>> xdna_mailbox_msg *msg);
>> int aie_check_protocol(struct aie_device *aie, u32 fw_major, u32
>> fw_minor);
>> +void amdxdna_vbnv_init(struct amdxdna_dev *xdna);
>> /* aie_psp.c */
>> struct psp_device *aiem_psp_create(struct drm_device *ddev, struct
>> psp_config *conf);
>> diff --git a/drivers/accel/amdxdna/aie2_message.c
>> b/drivers/accel/amdxdna/aie2_message.c
>> index 976ad6281078..6e98af7b74db 100644
>> --- a/drivers/accel/amdxdna/aie2_message.c
>> +++ b/drivers/accel/amdxdna/aie2_message.c
>> @@ -1244,3 +1244,28 @@ int aie2_update_prop_time_quota(struct
>> amdxdna_dev_hdl *ndev, u32 us)
>> }
>> return ret;
>> }
>> +
>> +int aie2_get_dev_revision(struct amdxdna_dev_hdl *ndev, enum
>> aie2_dev_revision *rev)
>> +{
>> + DECLARE_AIE_MSG(get_dev_revision, MSG_OP_GET_DEV_REVISION);
>> + struct amdxdna_dev *xdna = ndev->aie.xdna;
>> + int ret;
>> +
>> + if (!AIE_FEATURE_ON(&ndev->aie, AIE2_GET_DEV_REVISION))
>> + return -EOPNOTSUPP;
>> +
>> + ret = aie_send_mgmt_msg_wait(&ndev->aie, &msg);
>> + if (ret)
>> + return ret;
>> +
>> + *rev = resp.rev;
>> +
>> + if (*rev < AIE2_DEV_REVISION_STXA || *rev >=
>> AIE2_DEV_REVISION_UNKN) {
>> + XDNA_ERR(xdna, "Unknown device revision: %d (raw fuse: 0x%x)",
>> + *rev, resp.raw_fuse_data);
>> + return -EINVAL;
>> + }
>> +
>> + XDNA_DBG(xdna, "Device revision: %d (raw fuse: 0x%x)", *rev,
>> resp.raw_fuse_data);
>> + return 0;
>> +}
>> diff --git a/drivers/accel/amdxdna/aie2_msg_priv.h
>> b/drivers/accel/amdxdna/aie2_msg_priv.h
>> index b10552c627ee..a41c9797e265 100644
>> --- a/drivers/accel/amdxdna/aie2_msg_priv.h
>> +++ b/drivers/accel/amdxdna/aie2_msg_priv.h
>> @@ -33,6 +33,7 @@ enum aie2_msg_opcode {
>> MSG_OP_REGISTER_ASYNC_EVENT_MSG = 0x10C,
>> MSG_OP_UPDATE_PROPERTY = 0x113,
>> MSG_OP_GET_APP_HEALTH = 0x114,
>> + MSG_OP_GET_DEV_REVISION = 0x117,
>> MSG_OP_MAX_DRV_OPCODE,
>> MSG_OP_GET_PROTOCOL_VERSION = 0x301,
>> MSG_OP_MAX_OPCODE
>> @@ -519,4 +520,26 @@ struct update_property_resp {
>> enum aie2_msg_status status;
>> } __packed;
>> +enum aie2_dev_revision {
>> + AIE2_DEV_REVISION_STXA = 1,
>> + AIE2_DEV_REVISION_STXB,
>> + AIE2_DEV_REVISION_KRK1,
>> + AIE2_DEV_REVISION_KRK2,
>> + AIE2_DEV_REVISION_HALO,
>> + AIE2_DEV_REVISION_GPT1,
>> + AIE2_DEV_REVISION_GPT2,
>> + AIE2_DEV_REVISION_GPT3,
>> + AIE2_DEV_REVISION_UNKN,
>> +};
>> +
>> +struct get_dev_revision_req {
>> + __u32 place_holder;
>> +} __packed;
>> +
>> +struct get_dev_revision_resp {
>> + enum aie2_msg_status status;
>> + enum aie2_dev_revision rev;
>> + __u32 raw_fuse_data;
>> +} __packed;
>> +
>> #endif /* _AIE2_MSG_PRIV_H_ */
>> diff --git a/drivers/accel/amdxdna/aie2_pci.c
>> b/drivers/accel/amdxdna/aie2_pci.c
>> index afbe3f8f67ce..1d1fb012294a 100644
>> --- a/drivers/accel/amdxdna/aie2_pci.c
>> +++ b/drivers/accel/amdxdna/aie2_pci.c
>> @@ -608,6 +608,7 @@ static int aie2_init(struct amdxdna_dev *xdna)
>> release_firmware(fw);
>> aie2_msg_init(ndev);
>> + amdxdna_vbnv_init(xdna);
>> amdxdna_pm_init(xdna);
>> return 0;
>> @@ -1255,6 +1256,21 @@ static int aie2_set_state(struct
>> amdxdna_client *client,
>> return ret;
>> }
>> +static int aie2_get_dev_rev(struct amdxdna_dev *xdna, u32 *rev)
>> +{
>> + struct amdxdna_dev_hdl *ndev = xdna->dev_handle;
>> + enum aie2_dev_revision aie2_rev;
>> + int ret;
>> +
>> + drm_WARN_ON(&xdna->ddev, !mutex_is_locked(&xdna->dev_lock));
>> + ret = aie2_get_dev_revision(ndev, &aie2_rev);
>> +
>> + if (!ret)
>> + *rev = (u32)aie2_rev;
>> +
>> + return ret;
>> +}
>> +
>> const struct amdxdna_dev_ops aie2_ops = {
>> .init = aie2_init,
>> .fini = aie2_fini,
>> @@ -1269,4 +1285,5 @@ const struct amdxdna_dev_ops aie2_ops = {
>> .cmd_submit = aie2_cmd_submit,
>> .hmm_invalidate = aie2_hmm_invalidate,
>> .get_array = aie2_get_array,
>> + .get_dev_revision = aie2_get_dev_rev,
>> };
>> diff --git a/drivers/accel/amdxdna/aie2_pci.h
>> b/drivers/accel/amdxdna/aie2_pci.h
>> index 69b53c7bcb86..c44616065058 100644
>> --- a/drivers/accel/amdxdna/aie2_pci.h
>> +++ b/drivers/accel/amdxdna/aie2_pci.h
>> @@ -223,6 +223,7 @@ enum aie2_fw_feature {
>> AIE2_TEMPORAL_ONLY,
>> AIE2_APP_HEALTH,
>> AIE2_UPDATE_PROPERTY,
>> + AIE2_GET_DEV_REVISION,
>> AIE2_FEATURE_MAX
>> };
>> @@ -258,6 +259,7 @@ extern const struct dpm_clk_freq
>> npu4_dpm_clk_table[];
>> extern const struct rt_config npu1_default_rt_cfg[];
>> extern const struct rt_config npu4_default_rt_cfg[];
>> extern const struct amdxdna_fw_feature_tbl npu4_fw_feature_table[];
>> +extern const struct amdxdna_rev_vbnv npu4_rev_vbnv_tbl[];
>> extern const struct aie2_hw_ops npu4_hw_ops;
>> /* aie2_pm.c */
>> @@ -286,6 +288,7 @@ int aie2_query_firmware_version(struct
>> amdxdna_dev_hdl *ndev,
>> struct amdxdna_fw_ver *fw_ver);
>> int aie2_query_app_health(struct amdxdna_dev_hdl *ndev, u32
>> context_id,
>> struct app_health_report *report);
>> +int aie2_get_dev_revision(struct amdxdna_dev_hdl *ndev, enum
>> aie2_dev_revision *rev);
>> int aie2_create_context(struct amdxdna_dev_hdl *ndev, struct
>> amdxdna_hwctx *hwctx);
>> int aie2_destroy_context(struct amdxdna_dev_hdl *ndev, struct
>> amdxdna_hwctx *hwctx);
>> int aie2_map_host_buf(struct amdxdna_dev_hdl *ndev, u32 context_id,
>> u64 addr, u64 size);
>> diff --git a/drivers/accel/amdxdna/aie4_pci.c
>> b/drivers/accel/amdxdna/aie4_pci.c
>> index f50e0bc566e4..87f80f804f91 100644
>> --- a/drivers/accel/amdxdna/aie4_pci.c
>> +++ b/drivers/accel/amdxdna/aie4_pci.c
>> @@ -471,6 +471,7 @@ static int aie4_init(struct amdxdna_dev *xdna)
>> return ret;
>> }
>> + amdxdna_vbnv_init(xdna);
>> XDNA_DBG(xdna, "aie4 init finished");
>> return 0;
>> }
>> diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.h
>> b/drivers/accel/amdxdna/amdxdna_pci_drv.h
>> index eabbf57f2b38..bdd0dc83f92e 100644
>> --- a/drivers/accel/amdxdna/amdxdna_pci_drv.h
>> +++ b/drivers/accel/amdxdna/amdxdna_pci_drv.h
>> @@ -65,6 +65,7 @@ struct amdxdna_dev_ops {
>> int (*get_aie_info)(struct amdxdna_client *client, struct
>> amdxdna_drm_get_info *args);
>> int (*set_aie_state)(struct amdxdna_client *client, struct
>> amdxdna_drm_set_state *args);
>> int (*get_array)(struct amdxdna_client *client, struct
>> amdxdna_drm_get_array *args);
>> + int (*get_dev_revision)(struct amdxdna_dev *xdna, u32 *rev);
>> };
>> struct amdxdna_fw_feature_tbl {
>> @@ -89,7 +90,8 @@ struct amdxdna_dev_info {
>> u32 dev_mem_buf_shift;
>> u64 dev_mem_base;
>> size_t dev_mem_size;
>> - char *vbnv;
>> + const char *default_vbnv;
>> + const struct amdxdna_rev_vbnv *rev_vbnv_tbl;
>> const struct amdxdna_dev_priv *dev_priv;
>> const struct amdxdna_fw_feature_tbl *fw_feature_tbl;
>> const struct amdxdna_dev_ops *ops;
>> @@ -117,6 +119,8 @@ struct amdxdna_dev {
>> struct iommu_group *group;
>> struct iommu_domain *domain;
>> struct iova_domain iovad;
>> + /* Accurate board name queried from firmware, or default_vbnv as
>> fallback */
>> + const char *vbnv;
>> };
>> /*
>> diff --git a/drivers/accel/amdxdna/amdxdna_sysfs.c
>> b/drivers/accel/amdxdna/amdxdna_sysfs.c
>> index f27e4ee960a0..d9e359ee8182 100644
>> --- a/drivers/accel/amdxdna/amdxdna_sysfs.c
>> +++ b/drivers/accel/amdxdna/amdxdna_sysfs.c
>> @@ -17,7 +17,10 @@ static ssize_t vbnv_show(struct device *dev,
>> struct device_attribute *attr, char
>> {
>> struct amdxdna_dev *xdna = dev_get_drvdata(dev);
>> - return sprintf(buf, "%s\n", xdna->dev_info->vbnv);
>> + if (!xdna->vbnv)
>> + return sprintf(buf, "\n");
>> +
>> + return sprintf(buf, "%s\n", xdna->vbnv);
>> }
>> static DEVICE_ATTR_RO(vbnv);
>> diff --git a/drivers/accel/amdxdna/npu1_regs.c
>> b/drivers/accel/amdxdna/npu1_regs.c
>> index f1141a65e64d..d7e50c6b06ef 100644
>> --- a/drivers/accel/amdxdna/npu1_regs.c
>> +++ b/drivers/accel/amdxdna/npu1_regs.c
>> @@ -137,7 +137,7 @@ const struct amdxdna_dev_info dev_npu1_info = {
>> .dev_mem_buf_shift = 15, /* 32 KiB aligned */
>> .dev_mem_base = AIE2_DEVM_BASE,
>> .dev_mem_size = AIE2_DEVM_SIZE,
>> - .vbnv = "RyzenAI-npu1",
>> + .default_vbnv = "RyzenAI-npu1",
>> .device_type = AMDXDNA_DEV_TYPE_KMQ,
>> .dev_priv = &npu1_dev_priv,
>> .fw_feature_tbl = npu1_fw_feature_table,
>> diff --git a/drivers/accel/amdxdna/npu3_regs.c
>> b/drivers/accel/amdxdna/npu3_regs.c
>> index 5a0bbc916094..acece0faddf2 100644
>> --- a/drivers/accel/amdxdna/npu3_regs.c
>> +++ b/drivers/accel/amdxdna/npu3_regs.c
>> @@ -69,7 +69,7 @@ const struct amdxdna_dev_info dev_npu3_pf_info = {
>> .sram_bar = NPU3_MBOX_BUFFER_BAR,
>> .psp_bar = NPU3_PSP_BAR_INDEX,
>> .smu_bar = NPU3_SMU_BAR_INDEX,
>> - .vbnv = "RyzenAI-npu3-pf",
>> + .default_vbnv = "RyzenAI-npu3-pf",
>> .device_type = AMDXDNA_DEV_TYPE_PF,
>> .dev_priv = &npu3_dev_priv,
>> .fw_feature_tbl = npu3_fw_feature_table,
>> diff --git a/drivers/accel/amdxdna/npu4_regs.c
>> b/drivers/accel/amdxdna/npu4_regs.c
>> index 6ebf75ad5fb4..935999ced70f 100644
>> --- a/drivers/accel/amdxdna/npu4_regs.c
>> +++ b/drivers/accel/amdxdna/npu4_regs.c
>> @@ -98,6 +98,7 @@ const struct amdxdna_fw_feature_tbl
>> npu4_fw_feature_table[] = {
>> { .features = BIT_U64(AIE2_NPU_COMMAND), .major = 6, .min_minor
>> = 15 },
>> { .features = BIT_U64(AIE2_UPDATE_PROPERTY), .major = 6,
>> .min_minor = 15 },
>> { .features = BIT_U64(AIE2_APP_HEALTH), .major = 6, .min_minor
>> = 18 },
>> + { .features = BIT_U64(AIE2_GET_DEV_REVISION), .major = 6,
>> .min_minor = 24 },
>> { .features = AIE2_ALL_FEATURES, .major = 7 },
>> { 0 }
>> };
>> @@ -142,6 +143,18 @@ const struct aie2_hw_ops npu4_hw_ops = {
>> .update_counters = npu4_update_counters,
>> };
>> +const struct amdxdna_rev_vbnv npu4_rev_vbnv_tbl[] = {
>> + { AIE2_DEV_REVISION_STXA, "NPU Strix" },
>> + { AIE2_DEV_REVISION_STXB, "NPU Strix" },
>> + { AIE2_DEV_REVISION_KRK1, "NPU Krackan 1" },
>> + { AIE2_DEV_REVISION_KRK2, "NPU Krackan 2" },
>> + { AIE2_DEV_REVISION_HALO, "NPU Strix Halo" },
>> + { AIE2_DEV_REVISION_GPT1, "NPU Gorgon Point 1" },
>> + { AIE2_DEV_REVISION_GPT2, "NPU Gorgon Point 2" },
>> + { AIE2_DEV_REVISION_GPT3, "NPU Gorgon Point 3" },
>> + { 0 }
>> +};
>> +
>> static const struct amdxdna_dev_priv npu4_dev_priv = {
>> .fw_path = "amdnpu/17f0_10/",
>> .rt_config = npu4_default_rt_cfg,
>> @@ -185,8 +198,9 @@ const struct amdxdna_dev_info dev_npu4_info = {
>> .dev_mem_buf_shift = 15, /* 32 KiB aligned */
>> .dev_mem_base = AIE2_DEVM_BASE,
>> .dev_mem_size = AIE2_DEVM_SIZE,
>> - .vbnv = "RyzenAI-npu4",
>> + .default_vbnv = "RyzenAI-npu4",
>> .device_type = AMDXDNA_DEV_TYPE_KMQ,
>> + .rev_vbnv_tbl = npu4_rev_vbnv_tbl,
>> .dev_priv = &npu4_dev_priv,
>> .fw_feature_tbl = npu4_fw_feature_table,
>> .ops = &aie2_ops, /* NPU4 can share NPU1's
>> callback */
>> diff --git a/drivers/accel/amdxdna/npu5_regs.c
>> b/drivers/accel/amdxdna/npu5_regs.c
>> index 6d4596b9e61e..795bd1996845 100644
>> --- a/drivers/accel/amdxdna/npu5_regs.c
>> +++ b/drivers/accel/amdxdna/npu5_regs.c
>> @@ -105,8 +105,9 @@ const struct amdxdna_dev_info dev_npu5_info = {
>> .dev_mem_buf_shift = 15, /* 32 KiB aligned */
>> .dev_mem_base = AIE2_DEVM_BASE,
>> .dev_mem_size = AIE2_DEVM_SIZE,
>> - .vbnv = "RyzenAI-npu5",
>> + .default_vbnv = "RyzenAI-npu5",
>> .device_type = AMDXDNA_DEV_TYPE_KMQ,
>> + .rev_vbnv_tbl = npu4_rev_vbnv_tbl,
>> .dev_priv = &npu5_dev_priv,
>> .fw_feature_tbl = npu4_fw_feature_table,
>> .ops = &aie2_ops,
>> diff --git a/drivers/accel/amdxdna/npu6_regs.c
>> b/drivers/accel/amdxdna/npu6_regs.c
>> index 76181345b6d1..3125d1ce45ab 100644
>> --- a/drivers/accel/amdxdna/npu6_regs.c
>> +++ b/drivers/accel/amdxdna/npu6_regs.c
>> @@ -106,8 +106,9 @@ const struct amdxdna_dev_info dev_npu6_info = {
>> .dev_mem_buf_shift = 15, /* 32 KiB aligned */
>> .dev_mem_base = AIE2_DEVM_BASE,
>> .dev_mem_size = AIE2_DEVM_SIZE,
>> - .vbnv = "RyzenAI-npu6",
>> + .default_vbnv = "RyzenAI-npu6",
>> .device_type = AMDXDNA_DEV_TYPE_KMQ,
>> + .rev_vbnv_tbl = npu4_rev_vbnv_tbl,
>> .dev_priv = &npu6_dev_priv,
>> .fw_feature_tbl = npu4_fw_feature_table,
>> .ops = &aie2_ops,
>
prev parent reply other threads:[~2026-04-17 16:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-16 19:01 Lizhi Hou
2026-04-16 22:45 ` Mario Limonciello
2026-04-17 16:17 ` Lizhi Hou [this message]
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