[PATCH AUTOSEL 4.19 245/252] drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_latency
Sasha Levin
sashal at kernel.org
Fri Feb 14 16:11:40 UTC 2020
From: Alex Deucher <alexander.deucher at amd.com>
[ Upstream commit 4d0a72b66065dd7e274bad6aa450196d42fd8f84 ]
Only send non-0 clocks to DC for validation. This mirrors
what the windows driver does.
Bug: https://gitlab.freedesktop.org/drm/amd/issues/963
Reviewed-by: Evan Quan <evan.quan at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index 1546bc49004f8..3fa6e8123b8eb 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -994,12 +994,15 @@ static int smu10_get_clock_by_type_with_latency(struct pp_hwmgr *hwmgr,
clocks->num_levels = 0;
for (i = 0; i < pclk_vol_table->count; i++) {
- clocks->data[i].clocks_in_khz = pclk_vol_table->entries[i].clk * 10;
- clocks->data[i].latency_in_us = latency_required ?
- smu10_get_mem_latency(hwmgr,
- pclk_vol_table->entries[i].clk) :
- 0;
- clocks->num_levels++;
+ if (pclk_vol_table->entries[i].clk) {
+ clocks->data[clocks->num_levels].clocks_in_khz =
+ pclk_vol_table->entries[i].clk * 10;
+ clocks->data[clocks->num_levels].latency_in_us = latency_required ?
+ smu10_get_mem_latency(hwmgr,
+ pclk_vol_table->entries[i].clk) :
+ 0;
+ clocks->num_levels++;
+ }
}
return 0;
--
2.20.1
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