aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
diff options
context:
space:
mode:
authorDave Airlie <[email protected]>2025-07-04 00:06:22 +0000
committerDave Airlie <[email protected]>2025-07-04 00:06:29 +0000
commit7e2818386aad54ba5ab70e228c555814d33bdad1 (patch)
tree7ab8ff537b23fd2338643042625991d6c44dbe5c /drivers/gpu/drm/amd/display/modules/freesync/freesync.c
parentMerge tag 'drm-misc-next-2025-06-26' of https://gitlab.freedesktop.org/drm/mi... (diff)
parentdrm/amdgpu/sdma6: add more ucode version checks for userq support (diff)
downloadkernel-7e2818386aad54ba5ab70e228c555814d33bdad1.tar.gz
kernel-7e2818386aad54ba5ab70e228c555814d33bdad1.zip
Merge tag 'amd-drm-next-6.17-2025-07-01' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.17-2025-07-01: amdgpu: - FAMS2 fixes - OLED fixes - Misc cleanups - AUX fixes - DMCUB updates - SR-IOV hibernation support - RAS updates - DP tunneling fixes - DML2 fixes - Backlight improvements - Suspend improvements - Use scaling for non-native modes on eDP - SDMA 4.4.x fixes - PCIe DPM fixes - SDMA 5.x fixes - Cleaner shader updates for GC 9.x - Remove fence slab - ISP genpd support - Parition handling rework - SDMA FW checks for userq support - Add missing firmware declaration - Fix leak in amdgpu_ctx_mgr_entity_fini() - Freesync fix - Ring reset refactoring - Legacy dpm verbosity changes amdkfd: - GWS fix - mtype fix for ext coherent system memory - MMU notifier fix - gfx7/8 fix radeon: - CS validation support for additional GL extensions - Bump driver version for new CS validation checks From: Alex Deucher <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/freesync/freesync.c')
-rw-r--r--drivers/gpu/drm/amd/display/modules/freesync/freesync.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 3ba9b62ba70b..71efd2770c99 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -147,7 +147,7 @@ unsigned int mod_freesync_calc_v_total_from_refresh(
((unsigned int)(div64_u64((1000000000ULL * 1000000),
refresh_in_uhz)));
- if (MICRO_HZ_TO_HZ(refresh_in_uhz) <= stream->timing.min_refresh_in_uhz) {
+ if (refresh_in_uhz <= stream->timing.min_refresh_in_uhz) {
/* When the target refresh rate is the minimum panel refresh rate,
* round down the vtotal value to avoid stretching vblank over
* panel's vtotal boundary.
@@ -155,6 +155,14 @@ unsigned int mod_freesync_calc_v_total_from_refresh(
v_total = div64_u64(div64_u64(((unsigned long long)(
frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),
stream->timing.h_total), 1000000);
+ } else if (refresh_in_uhz >= stream->timing.max_refresh_in_uhz) {
+ /* When the target refresh rate is the maximum panel refresh rate
+ * round up the vtotal value to prevent off-by-one error causing
+ * v_total_min to be below the panel's lower bound
+ */
+ v_total = div64_u64(div64_u64(((unsigned long long)(
+ frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),
+ stream->timing.h_total) + (1000000 - 1), 1000000);
} else {
v_total = div64_u64(div64_u64(((unsigned long long)(
frame_duration_in_ns) * (stream->timing.pix_clk_100hz / 10)),