From dcde5fc88caffa10e57546776e7b3fa56b451dac Mon Sep 17 00:00:00 2001
From: Lang Yu <Lang.Yu@amd.com>
Date: Mon, 24 Jan 2022 14:25:34 +0800
Subject: drm/amd/pm: add get_dpm_ultimate_freq function for cyan skillfish
Git-commit: d435c1ed56b9f9347189924395588cfdf7489af5
Patch-mainline: v5.18-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
Some clients(e.g., kfd) query sclk/mclk through this function.
As cyan skillfish doesn't support dpm, for sclk, set min/max
to CYAN_SKILLFISH_SCLK_MIN/CYAN_SKILLFISH_SCLK_MAX(to maintain the
existing logic).For others, set both min and max to current value.
Before this patch:
# /opt/rocm/opencl/bin/clinfo
Max clock frequency: 0Mhz
After this patch:
# /opt/rocm/opencl/bin/clinfo
Max clock frequency: 2000Mhz
v2:
- Maintain the existing min/max sclk logic.(Lijo)
v3:
- Avoid fetching metrics table twice.(Lijo)
Signed-off-by: Lang Yu <Lang.Yu@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../amd/pm/swsmu/smu11/cyan_skillfish_ppt.c | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c
index 2acd7470431e..d743984b68a2 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c
@@ -542,6 +542,36 @@ static int cyan_skillfish_od_edit_dpm_table(struct smu_context *smu,
return ret;
}
+static int cyan_skillfish_get_dpm_ultimate_freq(struct smu_context *smu,
+ enum smu_clk_type clk_type,
+ uint32_t *min,
+ uint32_t *max)
+{
+ int ret = 0;
+ uint32_t low, high;
+
+ switch (clk_type) {
+ case SMU_GFXCLK:
+ case SMU_SCLK:
+ low = CYAN_SKILLFISH_SCLK_MIN;
+ high = CYAN_SKILLFISH_SCLK_MAX;
+ break;
+ default:
+ ret = cyan_skillfish_get_current_clk_freq(smu, clk_type, &low);
+ if (ret)
+ return ret;
+ high = low;
+ break;
+ }
+
+ if (min)
+ *min = low;
+ if (max)
+ *max = high;
+
+ return 0;
+}
+
static const struct pptable_funcs cyan_skillfish_ppt_funcs = {
.check_fw_status = smu_v11_0_check_fw_status,
@@ -555,6 +585,7 @@ static const struct pptable_funcs cyan_skillfish_ppt_funcs = {
.is_dpm_running = cyan_skillfish_is_dpm_running,
.get_gpu_metrics = cyan_skillfish_get_gpu_metrics,
.od_edit_dpm_table = cyan_skillfish_od_edit_dpm_table,
+ .get_dpm_ultimate_freq = cyan_skillfish_get_dpm_ultimate_freq,
.register_irq_handler = smu_v11_0_register_irq_handler,
.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,
.send_smc_msg_with_param = smu_cmn_send_smc_msg_with_param,
--
2.38.1