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| author | Dave Airlie <airlied@redhat.com> | 2022-05-06 09:59:47 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-05-06 09:59:48 +1000 |
| commit | ebbc04bdb1966e29d736ec4d28dd6f5cc203291f (patch) | |
| tree | a92a23d6ea852aa41adb61a496e13fb4e6711337 | |
| parent | 672c0c5173427e6b3e2a9bbb7be51ceeec78093a (diff) | |
| parent | 3dfe85fa87b2a26bdbd292b66653bba065cf9941 (diff) | |
| download | lwn-ebbc04bdb1966e29d736ec4d28dd6f5cc203291f.tar.gz lwn-ebbc04bdb1966e29d736ec4d28dd6f5cc203291f.zip | |
Merge tag 'amd-drm-fixes-5.18-2022-05-04' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.18-2022-05-04:
amdgpu:
- Fix a xen dom0 regression on APUs
- Fix a potential array overflow if a receiver were to
send an erroneous audio channel count
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220504190439.5723-1-alexander.deucher@amd.com
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index a025f080aa6a..5e3756643da3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <drm/drm_drv.h> +#include <xen/xen.h> #include "amdgpu.h" #include "amdgpu_ras.h" @@ -710,7 +711,8 @@ void amdgpu_detect_virtualization(struct amdgpu_device *adev) adev->virt.caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV; if (!reg) { - if (is_virtual_machine()) /* passthrough mode exclus sriov mod */ + /* passthrough mode exclus sriov mod */ + if (is_virtual_machine() && !xen_initial_domain()) adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; } diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 22dabe596dfc..95b5b5bfa1ff 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -4440,7 +4440,7 @@ static void dp_test_get_audio_test_data(struct dc_link *link, bool disable_video &dpcd_pattern_type.value, sizeof(dpcd_pattern_type)); - channel_count = dpcd_test_mode.bits.channel_count + 1; + channel_count = min(dpcd_test_mode.bits.channel_count + 1, AUDIO_CHANNELS_COUNT); // read pattern periods for requested channels when sawTooth pattern is requested if (dpcd_pattern_type.value == AUDIO_TEST_PATTERN_SAWTOOTH || |