From 40309c8f38d6acb497c10e8b6d0d5d07a9392dcd Mon Sep 17 00:00:00 2001
From: Darren Powell <darren.powell@amd.com>
Date: Fri, 4 Mar 2022 23:45:25 -0500
Subject: amdgpu/pm: Add new hwmgr API function "emit_clock_levels"
Git-commit: 5d8539d2fbe39ce24e76dfe72b7de7093d3fac6d
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

 Extend commit 7f36948c92b2 ("amdgpu/pm: Implement new API function "emit" that accepts buffer base and write offset")
   Add new hwmgr API function "emit_clock_levels"
   - add member emit_clock_levels to pp_hwmgr_func
   - Implemented pp_dpm_emit_clock_levels
   - add pp_dpm_emit_clock_levels to pp_dpm_funcs

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 .../gpu/drm/amd/pm/powerplay/amd_powerplay.c    | 17 +++++++++++++++++
 drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h    |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
index 71e9c6ce6b1a..1eb4e613b27a 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/amd_powerplay.c
@@ -671,6 +671,22 @@ static int pp_dpm_force_clock_level(void *handle,
 	return hwmgr->hwmgr_func->force_clock_level(hwmgr, type, mask);
 }
 
+static int pp_dpm_emit_clock_levels(void *handle,
+				    enum pp_clock_type type,
+				    char *buf,
+				    int *offset)
+{
+	struct pp_hwmgr *hwmgr = handle;
+
+	if (!hwmgr || !hwmgr->pm_en)
+		return -EOPNOTSUPP;
+
+	if (!hwmgr->hwmgr_func->emit_clock_levels)
+		return -ENOENT;
+
+	return hwmgr->hwmgr_func->emit_clock_levels(hwmgr, type, buf, offset);
+}
+
 static int pp_dpm_print_clock_levels(void *handle,
 		enum pp_clock_type type, char *buf)
 {
@@ -1525,6 +1541,7 @@ static const struct amd_pm_funcs pp_dpm_funcs = {
 	.get_pp_table = pp_dpm_get_pp_table,
 	.set_pp_table = pp_dpm_set_pp_table,
 	.force_clock_level = pp_dpm_force_clock_level,
+	.emit_clock_levels = pp_dpm_emit_clock_levels,
 	.print_clock_levels = pp_dpm_print_clock_levels,
 	.get_sclk_od = pp_dpm_get_sclk_od,
 	.set_sclk_od = pp_dpm_set_sclk_od,
diff --git a/drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h
index 4f7f2f455301..27f8d0e0e6a8 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/pm/powerplay/inc/hwmgr.h
@@ -313,6 +313,8 @@ struct pp_hwmgr_func {
 	int (*get_max_high_clocks)(struct pp_hwmgr *hwmgr, struct amd_pp_simple_clock_info *clocks);
 	int (*power_off_asic)(struct pp_hwmgr *hwmgr);
 	int (*force_clock_level)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, uint32_t mask);
+	int (*emit_clock_levels)(struct pp_hwmgr *hwmgr,
+				 enum pp_clock_type type, char *buf, int *offset);
 	int (*print_clock_levels)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, char *buf);
 	int (*powergate_gfx)(struct pp_hwmgr *hwmgr, bool enable);
 	int (*get_sclk_od)(struct pp_hwmgr *hwmgr);
-- 
2.38.1