diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4785-drm-amd-display-fix-potential-infinite-loop-in-fbc-p.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4785-drm-amd-display-fix-potential-infinite-loop-in-fbc-p.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4785-drm-amd-display-fix-potential-infinite-loop-in-fbc-p.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4785-drm-amd-display-fix-potential-infinite-loop-in-fbc-p.patch new file mode 100644 index 00000000..500e1dad --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4785-drm-amd-display-fix-potential-infinite-loop-in-fbc-p.patch @@ -0,0 +1,42 @@ +From 7a13914aacf6b31f699f3eb83b8510884a6426e4 Mon Sep 17 00:00:00 2001 +From: Roman Li <Roman.Li@amd.com> +Date: Tue, 5 Jun 2018 14:24:53 -0400 +Subject: [PATCH 4785/5725] drm/amd/display: fix potential infinite loop in fbc + path + +- Fixing integer overflow bug in wait_for_fbc_state_changed() +- Correct the max value of retries for the corresponding warning + +Signed-off-by: Roman Li <Roman.Li@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <harry.wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c +index df02701..1f7f250 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c ++++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c +@@ -143,7 +143,7 @@ static void wait_for_fbc_state_changed( + struct dce110_compressor *cp110, + bool enabled) + { +- uint16_t counter = 0; ++ uint32_t counter = 0; + uint32_t addr = mmFBC_STATUS; + uint32_t value; + +@@ -158,7 +158,7 @@ static void wait_for_fbc_state_changed( + counter++; + } + +- if (counter == 10) { ++ if (counter == 1000) { + DC_LOG_WARNING("%s: wait counter exceeded, changes to HW not applied", + __func__); + } else { +-- +2.7.4 + |