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-rw-r--r--drivers/platform/x86/amd/pmf/acpi.c58
-rw-r--r--drivers/platform/x86/amd/pmf/pmf.h22
-rw-r--r--drivers/platform/x86/amd/pmf/spc.c36
3 files changed, 105 insertions, 11 deletions
diff --git a/drivers/platform/x86/amd/pmf/acpi.c b/drivers/platform/x86/amd/pmf/acpi.c
index 4982311ac045..41c34c26ceec 100644
--- a/drivers/platform/x86/amd/pmf/acpi.c
+++ b/drivers/platform/x86/amd/pmf/acpi.c
@@ -320,6 +320,11 @@ int apmf_get_sbios_requests_v2(struct amd_pmf_dev *pdev, struct apmf_sbios_req_v
return apmf_if_call_store_buffer(pdev, APMF_FUNC_SBIOS_REQUESTS, req, sizeof(*req));
}
+int apmf_get_sbios_requests_v1(struct amd_pmf_dev *pdev, struct apmf_sbios_req_v1 *req)
+{
+ return apmf_if_call_store_buffer(pdev, APMF_FUNC_SBIOS_REQUESTS, req, sizeof(*req));
+}
+
int apmf_get_sbios_requests(struct amd_pmf_dev *pdev, struct apmf_sbios_req *req)
{
return apmf_if_call_store_buffer(pdev, APMF_FUNC_SBIOS_REQUESTS,
@@ -338,6 +343,18 @@ static void apmf_event_handler_v2(acpi_handle handle, u32 event, void *data)
dev_err(pmf_dev->dev, "Failed to get v2 SBIOS requests: %d\n", ret);
}
+static void apmf_event_handler_v1(acpi_handle handle, u32 event, void *data)
+{
+ struct amd_pmf_dev *pmf_dev = data;
+ int ret;
+
+ guard(mutex)(&pmf_dev->cb_mutex);
+
+ ret = apmf_get_sbios_requests_v1(pmf_dev, &pmf_dev->req1);
+ if (ret)
+ dev_err(pmf_dev->dev, "Failed to get v1 SBIOS requests: %d\n", ret);
+}
+
static void apmf_event_handler(acpi_handle handle, u32 event, void *data)
{
struct amd_pmf_dev *pmf_dev = data;
@@ -427,6 +444,11 @@ int apmf_get_dyn_slider_def_dc(struct amd_pmf_dev *pdev, struct apmf_dyn_slider_
return apmf_if_call_store_buffer(pdev, APMF_FUNC_DYN_SLIDER_DC, data, sizeof(*data));
}
+static apmf_event_handler_t apmf_event_handlers[] = {
+ [PMF_IF_V1] = apmf_event_handler_v1,
+ [PMF_IF_V2] = apmf_event_handler_v2,
+};
+
int apmf_install_handler(struct amd_pmf_dev *pmf_dev)
{
acpi_handle ahandle = ACPI_HANDLE(pmf_dev->dev);
@@ -446,13 +468,26 @@ int apmf_install_handler(struct amd_pmf_dev *pmf_dev)
apmf_event_handler(ahandle, 0, pmf_dev);
}
- if (pmf_dev->smart_pc_enabled && pmf_dev->pmf_if_version == PMF_IF_V2) {
+ if (!pmf_dev->smart_pc_enabled)
+ return -EINVAL;
+
+ switch (pmf_dev->pmf_if_version) {
+ case PMF_IF_V1:
+ if (!is_apmf_bios_input_notifications_supported(pmf_dev))
+ break;
+ fallthrough;
+ case PMF_IF_V2:
status = acpi_install_notify_handler(ahandle, ACPI_ALL_NOTIFY,
- apmf_event_handler_v2, pmf_dev);
+ apmf_event_handlers[pmf_dev->pmf_if_version], pmf_dev);
if (ACPI_FAILURE(status)) {
- dev_err(pmf_dev->dev, "failed to install notify handler for custom BIOS inputs\n");
+ dev_err(pmf_dev->dev,
+ "failed to install notify handler v%d for custom BIOS inputs\n",
+ pmf_dev->pmf_if_version);
return -ENODEV;
}
+ break;
+ default:
+ break;
}
return 0;
@@ -506,8 +541,21 @@ void apmf_acpi_deinit(struct amd_pmf_dev *pmf_dev)
is_apmf_func_supported(pmf_dev, APMF_FUNC_SBIOS_REQUESTS))
acpi_remove_notify_handler(ahandle, ACPI_ALL_NOTIFY, apmf_event_handler);
- if (pmf_dev->smart_pc_enabled && pmf_dev->pmf_if_version == PMF_IF_V2)
- acpi_remove_notify_handler(ahandle, ACPI_ALL_NOTIFY, apmf_event_handler_v2);
+ if (!pmf_dev->smart_pc_enabled)
+ return;
+
+ switch (pmf_dev->pmf_if_version) {
+ case PMF_IF_V1:
+ if (!is_apmf_bios_input_notifications_supported(pmf_dev))
+ break;
+ fallthrough;
+ case PMF_IF_V2:
+ acpi_remove_notify_handler(ahandle, ACPI_ALL_NOTIFY,
+ apmf_event_handlers[pmf_dev->pmf_if_version]);
+ break;
+ default:
+ break;
+ }
}
int apmf_acpi_init(struct amd_pmf_dev *pmf_dev)
diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h
index 6ddd1a6e9115..647993e94674 100644
--- a/drivers/platform/x86/amd/pmf/pmf.h
+++ b/drivers/platform/x86/amd/pmf/pmf.h
@@ -120,6 +120,8 @@ struct cookie_header {
#define APTS_MAX_STATES 16
#define CUSTOM_BIOS_INPUT_BITS GENMASK(16, 7)
+typedef void (*apmf_event_handler_t)(acpi_handle handle, u32 event, void *data);
+
/* APTS PMF BIOS Interface */
struct amd_pmf_apts_output {
u16 table_version;
@@ -187,6 +189,24 @@ struct apmf_sbios_req {
u8 skin_temp_hs2;
} __packed;
+/* As per APMF spec 1.3 */
+struct apmf_sbios_req_v1 {
+ u16 size;
+ u32 pending_req;
+ u8 rsvd;
+ u8 cql_event;
+ u8 amt_event;
+ u32 fppt;
+ u32 sppt;
+ u32 sppt_apu_only;
+ u32 spl;
+ u32 stt_min_limit;
+ u8 skin_temp_apu;
+ u8 skin_temp_hs2;
+ u8 enable_cnqf;
+ u32 custom_policy[10];
+} __packed;
+
struct apmf_sbios_req_v2 {
u16 size;
u32 pending_req;
@@ -379,6 +399,7 @@ struct amd_pmf_dev {
struct apmf_sbios_req_v2 req; /* To get custom bios pending request */
struct mutex cb_mutex;
u32 notifications;
+ struct apmf_sbios_req_v1 req1;
};
struct apmf_sps_prop_granular_v2 {
@@ -835,6 +856,7 @@ void amd_pmf_init_auto_mode(struct amd_pmf_dev *dev);
void amd_pmf_deinit_auto_mode(struct amd_pmf_dev *dev);
void amd_pmf_trans_automode(struct amd_pmf_dev *dev, int socket_power, ktime_t time_elapsed_ms);
int apmf_get_sbios_requests(struct amd_pmf_dev *pdev, struct apmf_sbios_req *req);
+int apmf_get_sbios_requests_v1(struct amd_pmf_dev *pdev, struct apmf_sbios_req_v1 *req);
int apmf_get_sbios_requests_v2(struct amd_pmf_dev *pdev, struct apmf_sbios_req_v2 *req);
void amd_pmf_update_2_cql(struct amd_pmf_dev *dev, bool is_cql_event);
diff --git a/drivers/platform/x86/amd/pmf/spc.c b/drivers/platform/x86/amd/pmf/spc.c
index 06b7760b2a8b..1b612e79a3d8 100644
--- a/drivers/platform/x86/amd/pmf/spc.c
+++ b/drivers/platform/x86/amd/pmf/spc.c
@@ -132,22 +132,46 @@ static void amd_pmf_set_ta_custom_bios_input(struct ta_pmf_enact_table *in, int
}
}
+static void amd_pmf_update_bios_inputs(struct amd_pmf_dev *pdev, u32 pending_req,
+ const struct amd_pmf_pb_bitmap *inputs,
+ const u32 *custom_policy, struct ta_pmf_enact_table *in)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(custom_bios_inputs); i++) {
+ if (!(pending_req & inputs[i].bit_mask))
+ continue;
+ amd_pmf_set_ta_custom_bios_input(in, i, custom_policy[i]);
+ }
+}
+
static void amd_pmf_get_custom_bios_inputs(struct amd_pmf_dev *pdev,
struct ta_pmf_enact_table *in)
{
- unsigned int i;
+ if (!(pdev->req.pending_req || pdev->req1.pending_req))
+ return;
- if (!pdev->req.pending_req)
+ if (!pdev->smart_pc_enabled)
return;
- for (i = 0; i < ARRAY_SIZE(custom_bios_inputs); i++) {
- if (!(pdev->req.pending_req & custom_bios_inputs[i].bit_mask))
- continue;
- amd_pmf_set_ta_custom_bios_input(in, i, pdev->req.custom_policy[i]);
+ switch (pdev->pmf_if_version) {
+ case PMF_IF_V1:
+ if (!is_apmf_bios_input_notifications_supported(pdev))
+ return;
+ amd_pmf_update_bios_inputs(pdev, pdev->req1.pending_req, custom_bios_inputs_v1,
+ pdev->req1.custom_policy, in);
+ break;
+ case PMF_IF_V2:
+ amd_pmf_update_bios_inputs(pdev, pdev->req.pending_req, custom_bios_inputs,
+ pdev->req.custom_policy, in);
+ break;
+ default:
+ break;
}
/* Clear pending requests after handling */
memset(&pdev->req, 0, sizeof(pdev->req));
+ memset(&pdev->req1, 0, sizeof(pdev->req1));
}
static void amd_pmf_get_c0_residency(u16 *core_res, size_t size, struct ta_pmf_enact_table *in)
generated by cgit (git 2.34.1) at 2025-12-24 15:35:05 +0000