github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-03 12:03:54 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

platform/x86/amd/pmf: Call enact function sooner to process early pending requests

Browse Source 
Call the amd_pmf_invoke_cmd_enact() function to manage early pending
requests and their associated custom BIOS inputs. Add a return statement
for cases of failure.

The PMF driver will adjust power settings according to custom BIOS inputs
after assessing the policy conditions.

Also, add a new common routine amd_pmf_handle_early_preq() to handle early
BIOS pending requests for both v1 and v2 variants.

Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Tested-by: Yijun Shen <Yijun.Shen@Dell.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://patch.msgid.link/20250901110140.2519072-9-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Shyam Sundar S K 2025-09-01 16:31:39 +05:30 committed by Ilpo Järvinen
parent b21ec88340
commit 62214d942d
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
3 changed files with 25 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/platform/x86/amd/pmf/acpi.c
View File

@ -331,6 +331,15 @@ int apmf_get_sbios_requests(struct amd_pmf_dev *pdev, struct apmf_sbios_req *req
req, sizeof(*req));
}
static void amd_pmf_handle_early_preq(struct amd_pmf_dev *pdev)
{
if (!pdev->cb_flag)
return;
amd_pmf_invoke_cmd_enact(pdev);
pdev->cb_flag = false;
}
static void apmf_event_handler_v2(acpi_handle handle, u32 event, void *data)
{
struct amd_pmf_dev *pmf_dev = data;
@ -339,8 +348,12 @@ static void apmf_event_handler_v2(acpi_handle handle, u32 event, void *data)
guard(mutex)(&pmf_dev->cb_mutex);
ret = apmf_get_sbios_requests_v2(pmf_dev, &pmf_dev->req);
if (ret)
if (ret) {
dev_err(pmf_dev->dev, "Failed to get v2 SBIOS requests: %d\n", ret);
return;
}
amd_pmf_handle_early_preq(pmf_dev);
}
static void apmf_event_handler_v1(acpi_handle handle, u32 event, void *data)
@ -351,8 +364,12 @@ static void apmf_event_handler_v1(acpi_handle handle, u32 event, void *data)
guard(mutex)(&pmf_dev->cb_mutex);
ret = apmf_get_sbios_requests_v1(pmf_dev, &pmf_dev->req1);
if (ret)
if (ret) {
dev_err(pmf_dev->dev, "Failed to get v1 SBIOS requests: %d\n", ret);
return;
}
amd_pmf_handle_early_preq(pmf_dev);
}
static void apmf_event_handler(acpi_handle handle, u32 event, void *data)

2
drivers/platform/x86/amd/pmf/pmf.h
View File

@ -405,6 +405,7 @@ struct amd_pmf_dev {
u32 notifications;
struct apmf_sbios_req_v1 req1;
struct pmf_bios_inputs_prev cb_prev; /* To preserve custom BIOS inputs */
bool cb_flag; /* To handle first custom BIOS input */
};
struct apmf_sps_prop_granular_v2 {
@ -885,5 +886,6 @@ int amd_pmf_smartpc_apply_bios_output(struct amd_pmf_dev *dev, u32 val, u32 preq
/* Smart PC - TA interfaces */
void amd_pmf_populate_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in);
void amd_pmf_dump_ta_inputs(struct amd_pmf_dev *dev, struct ta_pmf_enact_table *in);
int amd_pmf_invoke_cmd_enact(struct amd_pmf_dev *dev);
#endif /* PMF_H */

6
drivers/platform/x86/amd/pmf/tee-if.c
View File

@ -225,7 +225,7 @@ static void amd_pmf_apply_policies(struct amd_pmf_dev *dev, struct ta_pmf_enact_
}
}
static int amd_pmf_invoke_cmd_enact(struct amd_pmf_dev *dev)
int amd_pmf_invoke_cmd_enact(struct amd_pmf_dev *dev)
{
struct ta_pmf_shared_memory *ta_sm = NULL;
struct ta_pmf_enact_result *out = NULL;
@ -577,8 +577,10 @@ int amd_pmf_init_smart_pc(struct amd_pmf_dev *dev)
ret = amd_pmf_start_policy_engine(dev);
dev_dbg(dev->dev, "start policy engine ret: %d\n", ret);
status = ret == TA_PMF_TYPE_SUCCESS;
if (status)
if (status) {
dev->cb_flag = true;
break;
}
amd_pmf_tee_deinit(dev);
}