diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0218-drm-amd-display-Fix-64-bit-division-yet-again.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0218-drm-amd-display-Fix-64-bit-division-yet-again.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0218-drm-amd-display-Fix-64-bit-division-yet-again.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0218-drm-amd-display-Fix-64-bit-division-yet-again.patch new file mode 100644 index 00000000..be59ccbe --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0218-drm-amd-display-Fix-64-bit-division-yet-again.patch @@ -0,0 +1,50 @@ +From ba21331eb4da80b585467890ce91b22a9cafd161 Mon Sep 17 00:00:00 2001 +From: Harry Wentland <harry.wentland@amd.com> +Date: Tue, 14 Feb 2017 14:51:06 -0500 +Subject: [PATCH 0218/4131] drm/amd/display: Fix 64-bit division, yet again + +Also make the code somewhat more readable. + +Signed-off-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 15 +++++++++++---- + 1 file changed, 11 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +index b00b1df..2026ef3 100644 +--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c ++++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c +@@ -210,6 +210,8 @@ bool mod_freesync_add_stream(struct mod_freesync *mod_freesync, + struct core_freesync *core_freesync = NULL; + int persistent_freesync_enable = 0; + struct persistent_data_flag flag; ++ unsigned int nom_refresh_rate_micro_hz; ++ unsigned long long temp; + + if (mod_freesync == NULL) + return false; +@@ -262,11 +264,16 @@ bool mod_freesync_add_stream(struct mod_freesync *mod_freesync, + enable_for_video = false; + } + +- unsigned int nom_refresh_rate_micro_hz = (unsigned int) +- (((unsigned long long) core_stream->public.timing.pix_clk_khz) * 1000ULL * 1000ULL * 1000ULL +- / core_stream->public.timing.h_total / core_stream->public.timing.v_total); ++ temp = core_stream->public.timing.pix_clk_khz; ++ temp *= 1000ULL * 1000ULL * 1000ULL; ++ temp = div_u64(temp, core_stream->public.timing.h_total); ++ temp = div_u64(temp, core_stream->public.timing.v_total); + +- if (caps->supported && nom_refresh_rate_micro_hz >= caps->min_refresh_in_micro_hz && nom_refresh_rate_micro_hz <= caps->max_refresh_in_micro_hz) ++ nom_refresh_rate_micro_hz = (unsigned int) temp; ++ ++ if (caps->supported && ++ nom_refresh_rate_micro_hz >= caps->min_refresh_in_micro_hz && ++ nom_refresh_rate_micro_hz <= caps->max_refresh_in_micro_hz) + core_stream->public.ignore_msa_timing_param = 1; + + core_freesync->num_entities++; +-- +2.7.4 + |