iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

platform/x86/amd: pmc: Add defines for STB events

Browse Source 
Currently `amd-pmc` has two events, but just adds one to the first to
distinguish the second.  Add a clear definition what these events mean.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20220829162953.5947-3-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Mario Limonciello 2022-08-29 11:29:50 -05:00 committed by Hans de Goede
parent 811d59fdf5
commit e24faabf5f
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/platform/x86/amd/pmc.c
View File

@ -39,7 +39,8 @@
#define AMD_PMC_STB_INDEX_ADDRESS 0xF8
#define AMD_PMC_STB_INDEX_DATA 0xFC
#define AMD_PMC_STB_PMI_0 0x03E30600
#define AMD_PMC_STB_PREDEF 0xC6000001
#define AMD_PMC_STB_S2IDLE_PREPARE 0xC6000001
#define AMD_PMC_STB_S2IDLE_RESTORE 0xC6000002
/* STB S2D(Spill to DRAM) has different message port offset */
#define STB_SPILL_TO_DRAM 0xBE
@ -701,7 +702,7 @@ static void amd_pmc_s2idle_prepare(void)
}
if (enable_stb) {
rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF);
rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_S2IDLE_PREPARE);
if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
}
@ -724,9 +725,8 @@ static void amd_pmc_s2idle_restore(void)
/* Dump the IdleMask to see the blockers */
amd_pmc_idlemask_read(pdev, pdev->dev, NULL);
/* Write data incremented by 1 to distinguish in stb_read */
if (enable_stb) {
rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_PREDEF + 1);
rc = amd_pmc_write_stb(pdev, AMD_PMC_STB_S2IDLE_RESTORE);
if (rc)
dev_err(pdev->dev, "error writing to STB: %d\n", rc);
}