From: Yang Wang Date: Wed, 21 Jan 2026 03:04:06 +0000 (+0800) Subject: drm/amd/pm: fix smu v13 soft clock frequency setting issue X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6194f60c707e3878e120adeb36997075664d8429;p=thirdparty%2Fkernel%2Flinux.git drm/amd/pm: fix smu v13 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_v13_0.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h index efeaa3d57712..b0d6b7b0946d 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h @@ -55,6 +55,7 @@ #define SMUQ10_TO_UINT(x) ((x) >> 10) #define SMUQ10_FRAC(x) ((x) & 0x3ff) #define SMUQ10_ROUND(x) ((SMUQ10_TO_UINT(x)) + ((SMUQ10_FRAC(x)) >= 0x200)) +#define SMU_V13_SOFT_FREQ_ROUND(x) ((x) + 1) extern const int pmfw_decoded_link_speed[5]; extern const int pmfw_decoded_link_width[7]; diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c index 51f96fdcec24..70581326dc36 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c @@ -1554,6 +1554,7 @@ int smu_v13_0_set_soft_freq_limited_range(struct smu_context *smu, return clk_id; if (max > 0) { + max = SMU_V13_SOFT_FREQ_ROUND(max); if (automatic) param = (uint32_t)((clk_id << 16) | 0xffff); else