From: Yang Wang Date: Wed, 21 Jan 2026 03:06:29 +0000 (+0800) Subject: drm/amd/pm: fix smu v14 soft clock frequency setting issue X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53868dd8774344051999c880115740da92f97feb;p=thirdparty%2Fkernel%2Flinux.git drm/amd/pm: fix smu v14 soft clock frequency setting issue v1: resolve the issue where some freq frequencies cannot be set correctly due to insufficient floating-point precision. v2: patch this convert on 'max' value only. Signed-off-by: Yang Wang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v14_0.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v14_0.h index 613d4d36f32fd..b453e6efc7c9d 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v14_0.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v14_0.h @@ -56,6 +56,7 @@ extern const int decoded_link_width[8]; #define DECODE_GEN_SPEED(gen_speed_idx) (decoded_link_speed[gen_speed_idx]) #define DECODE_LANE_WIDTH(lane_width_idx) (decoded_link_width[lane_width_idx]) +#define SMU_V14_SOFT_FREQ_ROUND(x) ((x) + 1) struct smu_14_0_max_sustainable_clocks { uint32_t display_clock; diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c index f85ba23f9d99a..17caf98bd6ddc 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c @@ -1177,6 +1177,7 @@ int smu_v14_0_set_soft_freq_limited_range(struct smu_context *smu, return clk_id; if (max > 0) { + max = SMU_V14_SOFT_FREQ_ROUND(max); if (automatic) param = (uint32_t)((clk_id << 16) | 0xffff); else