Commit graph

94 commits

Author SHA1 Message Date
Srinivasan Shanmugam
98f3f78b4d drm/amd/display: Fix index out of bounds in DCN30 degamma hardware format translation
[ Upstream commit bc50b614d59990747dd5aeced9ec22f9258991ff ]

This commit addresses a potential index out of bounds issue in the
`cm3_helper_translate_curve_to_degamma_hw_format` function in the DCN30
color  management module. The issue could occur when the index 'i'
exceeds the  number of transfer function points (TRANSFER_FUNC_POINTS).

The fix adds a check to ensure 'i' is within bounds before accessing the
transfer function points. If 'i' is out of bounds, the function returns
false to indicate an error.

Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:338 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:339 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_cm_common.c:340 cm3_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:41 +01:00
Alex Hung
696d2e3194 drm/amd/display: Check stream before comparing them
[ Upstream commit 35ff747c86767937ee1e0ca987545b7eed7a0810 ]

[WHAT & HOW]
amdgpu_dm can pass a null stream to dc_is_stream_unchanged. It is
necessary to check for null before dereferencing them.

This fixes 1 FORWARD_NULL issue reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:40 +01:00
Peng Liu
84f5196364 drm/amdgpu: enable gfxoff quirk on HP 705G4
[ Upstream commit 2c7795e245d993bcba2f716a8c93a5891ef910c9 ]

Enabling gfxoff quirk results in perfectly usable
graphical user interface on HP 705G4 DM with R5 2400G.

Without the quirk, X server is completely unusable as
every few seconds there is gpu reset due to ring gfx timeout.

Signed-off-by: Peng Liu <liupeng01@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:40 +01:00
Peng Liu
f3431677c6 drm/amdgpu: add raven1 gfxoff quirk
[ Upstream commit 0126c0ae11e8b52ecfde9d1b174ee2f32d6c3a5d ]

Fix screen corruption with openkylin.

Link: https://bbs.openkylin.top/t/topic/171497
Signed-off-by: Peng Liu <liupeng01@kylinos.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:40 +01:00
Alex Hung
831ba4bca0 drm/amd/display: Check null pointers before using dc->clk_mgr
[ Upstream commit 95d9e0803e51d5a24276b7643b244c7477daf463 ]

[WHY & HOW]
dc->clk_mgr is null checked previously in the same function, indicating
it might be null.

Passing "dc" to "dc->hwss.apply_idle_power_optimizations", which
dereferences null "dc->clk_mgr". (The function pointer resolves to
"dcn35_apply_idle_power_optimizations".)

This fixes 1 FORWARD_NULL issue reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:40 +01:00
Srinivasan Shanmugam
456e75de3a drm/amd/display: Add null check for top_pipe_to_program in commit_planes_for_stream
[ Upstream commit 66d71a72539e173a9b00ca0b1852cbaa5f5bf1ad ]

This commit addresses a null pointer dereference issue in the
`commit_planes_for_stream` function at line 4140. The issue could occur
when `top_pipe_to_program` is null.

The fix adds a check to ensure `top_pipe_to_program` is not null before
accessing its stream_res. This prevents a null pointer dereference.

Reported by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:4140 commit_planes_for_stream() error: we previously assumed 'top_pipe_to_program' could be null (see line 3906)

Cc: Tom Chung <chiahsuan.chung@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Roman Li <roman.li@amd.com>
Cc: Alex Hung <alex.hung@amd.com>
Cc: Aurabindo Pillai <aurabindo.pillai@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com>
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:40 +01:00
Robin Chen
033f56e503 drm/amd/display: Round calculated vtotal
commit c03fca619fc687338a3b6511fdbed94096abdf79 upstream.

[WHY]
The calculated vtotal may has 1 line deviation. To get precisely
vtotal number, round the vtotal result.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Signed-off-by: Robin Chen <robin.chen@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:30 +01:00
Fangzhi Zuo
44e062bf8e drm/amd/display: Fix Synaptics Cascaded Panamera DSC Determination
commit 4437936c6b696b98f3fe1d8679a2788c41b4df77 upstream.

Synaptics Cascaded Panamera topology needs to unconditionally
acquire root aux for dsc decoding.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Mario Limonciello <superm1@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:29 +01:00
Alex Deucher
83535625d4 drm/amdgpu: properly handle vbios fake edid sizing
[ Upstream commit 8155566a26b8d6c1dd914f06a0c652e4e2f2adf1 ]

The comment in the vbios structure says:
// = 128 means EDID length is 128 bytes, otherwise the EDID length = ucFakeEDIDLength*128

This fake edid struct has not been used in a long time, so I'm
not sure if there were actually any boards out there with a non-128 byte
EDID, but align the code with the comment.

Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Reported-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://lists.freedesktop.org/archives/amd-gfx/2024-June/109964.html
Fixes: d38ceaf99ed0 ("drm/amdgpu: add core driver (v4)")
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:21 +01:00
Paulo Miguel Almeida
8fae68c46a drm/amdgpu: Replace one-element array with flexible-array member
[ Upstream commit 320e2590e281d0a7865e861f50155b5b435e9813 ]

One-element arrays are deprecated, and we are replacing them with
flexible array members instead. So, replace one-element array with
flexible-array member in struct _ATOM_FAKE_EDID_PATCH_RECORD and
refactor the rest of the code accordingly.

Important to mention is that doing a build before/after this patch
results in no binary output differences.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [1].

Link: https://github.com/KSPP/linux/issues/79
Link: https://github.com/KSPP/linux/issues/238
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101836 [1]

Signed-off-by: Paulo Miguel Almeida <paulo.miguel.almeida.rodenas@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: 8155566a26b8 ("drm/amdgpu: properly handle vbios fake edid sizing")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:21 +01:00
Bob Zhou
c347fef1dd drm/amd/pm: Fix the null pointer dereference for vega10_hwmgr
commit 50151b7f1c79a09117837eb95b76c2de76841dab upstream.

Check return value and conduct null pointer handling to avoid null pointer dereference.

Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Mukul Sikka <mukul.sikka@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:59 +01:00
Alex Hung
72c7361f02 drm/amd/display: Skip wbscl_set_scaler_filter if filter is null
[ Upstream commit c4d31653c03b90e51515b1380115d1aedad925dd ]

Callers can pass null in filter (i.e. from returned from the function
wbscl_get_filter_coeffs_16p) and a null check is added to ensure that is
not the case.

This fixes 4 NULL_RETURNS issues reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:58 +01:00
Jesse Zhang
859ac0fac3 drm/amd/pm: check negtive return for table entries
[ Upstream commit f76059fe14395b37ba8d997eb0381b1b9e80a939 ]

Function hwmgr->hwmgr_func->get_num_of_pp_table_entries(hwmgr) returns a negative number

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:58 +01:00
Jesse Zhang
63d6d48b7f drm/amdgpu: the warning dereferencing obj for nbio_v7_4
[ Upstream commit d190b459b2a4304307c3468ed97477b808381011 ]

if ras_manager obj null, don't print NBIO err data

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Suggested-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:58 +01:00
Ma Jun
28a6075e5b drm/amdgpu/pm: Check input value for CUSTOM profile mode setting on legacy SOCs
[ Upstream commit df0a9bd92fbbd3fcafcb2bce6463c9228a3e6868 ]

Check the input value for CUSTOM profile mode setting on legacy
SOCs. Otherwise we may use uninitalized value of input[]

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:58 +01:00
Michael Chen
6a194834b7 drm/amdkfd: Reconcile the definition and use of oem_id in struct kfd_topology_device
[ Upstream commit 10f624ef239bd136cdcc5bbc626157a57b938a31 ]

Currently oem_id is defined as uint8_t[6] and casted to uint64_t*
in some use case. This would lead code scanner to complain about
access beyond. Re-define it in union to enforce 8-byte size and
alignment to avoid potential issue.

Signed-off-by: Michael Chen <michael.chen@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Tim Huang
00cf4cb7e6 drm/amdgpu: fix mc_data out-of-bounds read warning
[ Upstream commit 51dfc0a4d609fe700750a62f41447f01b8c9ea50 ]

Clear warning that read mc_data[i-1] may out-of-bounds.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Tim Huang
82f9c43def drm/amdgpu: fix ucode out-of-bounds read warning
[ Upstream commit 8944acd0f9db33e17f387fdc75d33bb473d7936f ]

Clear warning that read ucode[] may out-of-bounds.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Ma Jun
55710990e4 drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number
[ Upstream commit d768394fa99467bcf2703bde74ddc96eeb0b71fa ]

Check the fb_channel_number range to avoid the array out-of-bounds
read error

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Ma Jun
c34696b21e drm/amdgpu: Fix out-of-bounds write warning
[ Upstream commit be1684930f5262a622d40ce7a6f1423530d87f89 ]

Check the ring type value to fix the out-of-bounds
write warning

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Ma Jun
864434bdff drm/amdgpu/pm: Fix uninitialized variable agc_btc_response
[ Upstream commit df4409d8a04dd39d7f2aa0c5f528a56b99eaaa13 ]

Assign an default value to agc_btc_response in failed case

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Hersen Wu
717ddeb177 drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_create
[ Upstream commit c6077aa66fa230d12f37fef01161ef080d13b726 ]

[Why]
For subtraction, coverity reports integer overflow
warning message when variable type is uint32_t.

[How]
Change variable type to int32_t.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Alex Hung
f978a1357c drm/amd/display: Check msg_id before processing transcation
[ Upstream commit fa71face755e27dc44bc296416ebdf2c67163316 ]

[WHY & HOW]
HDCP_MESSAGE_ID_INVALID (-1) is not a valid msg_id nor is it a valid
array index, and it needs checking before used.

This fixes 4 OVERRUN issues reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Alex Hung
2231b71bd1 drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]
[ Upstream commit b38a4815f79b87efb196cd5121579fc51e29a7fb ]

[WHY & HOW]
num_valid_sets needs to be checked to avoid a negative index when
accessing reader_wm_sets[num_valid_sets - 1].

This fixes an OVERRUN issue reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Hersen Wu
caf6cbca4e drm/amd/display: Add array index check for hdcp ddc access
[ Upstream commit 4e70c0f5251c25885c31ee84a31f99a01f7cf50e ]

[Why]
Coverity reports OVERRUN warning. Do not check if array
index valid.

[How]
Check msg_id valid and valid array index.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Hersen Wu
b939545a58 drm/amd/display: Stop amdgpu_dm initialize when stream nums greater than 6
[ Upstream commit 84723eb6068c50610c5c0893980d230d7afa2105 ]

[Why]
Coverity reports OVERRUN warning. Should abort amdgpu_dm
initialize.

[How]
Return failure to amdgpu_dm_init.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Alex Hung
26a7ab0492 drm/amd/display: Check gpio_id before used as array index
[ Upstream commit 2a5626eeb3b5eec7a36886f9556113dd93ec8ed6 ]

[WHY & HOW]
GPIO_ID_UNKNOWN (-1) is not a valid value for array index and therefore
should be checked in advance.

This fixes 5 OVERRUN issues reported by Coverity.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:57 +01:00
Zhigang Luo
044f561d76 drm/amdgpu: avoid reading vf2pf info size from FB
[ Upstream commit 3bcc0ee14768d886cedff65da72d83d375a31a56 ]

VF can't access FB when host is doing mode1 reset. Using sizeof to get
vf2pf info size, instead of reading it from vf2pf header stored in FB.

Signed-off-by: Zhigang Luo <Zhigang.Luo@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Tim Huang
36e8de3864 drm/amd/pm: fix uninitialized variable warnings for vega10_hwmgr
[ Upstream commit 5fa7d540d95d97ddc021a74583f6b3da4df9c93a ]

Clear warnings that using uninitialized variable when fails
to get the valid value from SMU.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Tim Huang
8a93124c6b drm/amdgpu: fix uninitialized scalar variable warning
[ Upstream commit 9a5f15d2a29d06ce5bd50919da7221cda92afb69 ]

Clear warning that uses uninitialized value fw_size.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Jesse Zhang
847d018f55 drm/amd/pm: fix the Out-of-bounds read warning
[ Upstream commit 12c6967428a099bbba9dfd247bb4322a984fcc0b ]

using index i - 1U may beyond element index
for mc_data[] when i = 0.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Jesse Zhang
0c2d2f70f5 drm/amd/pm: fix warning using uninitialized value of max_vid_step
[ Upstream commit 17e3bea65cdc453695b2fe4ff26d25d17f5339e9 ]

Check the return of pp_atomfwctrl_get_Voltage_table_v4
as it may fail to initialize max_vid_step
V2: change the check condition (Tim Huang)

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Tim Huang <Tim.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Tim Huang
7520de6396 drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr
[ Upstream commit 86df36b934640866eb249a4488abb148b985a0d9 ]

Clear warnings that using uninitialized value level when fails
to get the value from SMU.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Tim Huang
5a44f1a117 drm/amdgpu: fix overflowed array index read warning
[ Upstream commit ebbc2ada5c636a6a63d8316a3408753768f5aa9f ]

Clear overflowed array index read warning by cast operation.

Signed-off-by: Tim Huang <Tim.Huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Ma Jun
6754164e4e drm/amdgpu: Fix uninitialized variable warning in amdgpu_afmt_acr
[ Upstream commit c0d6bd3cd209419cc46ac49562bef1db65d90e70 ]

Assign value to clock to fix the warning below:
"Using uninitialized value res. Field res.clock is uninitialized"

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:56 +01:00
Alex Deucher
d7c4563aa3 drm/amdkfd: don't allow mapping the MMIO HDP page with large pages
commit be4a2a81b6b90d1a47eaeaace4cc8e2cb57b96c7 upstream.

We don't get the right offset in that case.  The GPU has
an unused 4K area of the register BAR space into which you can
remap registers.  We remap the HDP flush registers into this
space to allow userspace (CPU or GPU) to flush the HDP when it
updates VRAM.  However, on systems with >4K pages, we end up
exposing PAGE_SIZE of MMIO space.

Fixes: d8e408a82704 ("drm/amdkfd: Expose HDP registers to user space")
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:53 +01:00
Jesse Zhang
7cf5158f67 drm/amdgpu: Using uninitialized value *size when calling amdgpu_vce_cs_reloc
commit 88a9a467c548d0b3c7761b4fd54a68e70f9c0944 upstream.

Initialize the size before calling amdgpu_vce_cs_reloc, such as case 0x03000001.
V2: To really improve the handling we would actually
   need to have a separate value of 0xffffffff.(Christian)

Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Vamsi Krishna Brahmajosyula <vamsi-krishna.brahmajosyula@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:50 +01:00
Alex Hung
bf0f4c577b Revert "drm/amd/display: Validate hw_points_num before using it"
commit 8f4bdbc8e99db6ec9cb0520748e49a2f2d7d1727 upstream.

This reverts commit 58c3b3341cea4f75dc8c003b89f8a6dd8ec55e50.

[WHY & HOW]
The writeback series cause a regression in thunderbolt display.

Signed-off-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:50 +01:00
Alex Hung
f82097e0cd drm/amd/display: Validate hw_points_num before using it
[ Upstream commit 58c3b3341cea4f75dc8c003b89f8a6dd8ec55e50 ]

[WHAT]
hw_points_num is 0 before ogam LUT is programmed; however, function
"dwb3_program_ogam_pwl" assumes hw_points_num is always greater than 0,
i.e. substracting it by 1 as an array index.

[HOW]
Check hw_points_num is not equal to 0 before using it.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:44 +01:00
Alex Deucher
b0773b84cb drm/amdgpu/jpeg2: properly set atomics vmid field
commit e414a304f2c5368a84f03ad34d29b89f965a33c9 upstream.

This needs to be set as well if the IB uses atomics.

Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 35c628774e50b3784c59e8ca7973f03bcb067132)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:43 +01:00
Bas Nieuwenhuizen
c58b65086f drm/amdgpu: Actually check flags for all context ops.
commit 0573a1e2ea7e35bff08944a40f1adf2bb35cea61 upstream.

Missing validation ...

Checked libdrm and it clears all the structs, so we should be
safe to just check everything.

Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c6b86421f1f9ddf9d706f2453159813ee39d0cf9)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:43 +01:00
Ma Jun
335857b5a1 drm/amdgpu/pm: Fix the null pointer dereference in apply_state_adjust_rules
[ Upstream commit d19fb10085a49b77578314f69fff21562f7cd054 ]

Check the pointer value to fix potential null pointer
dereference

Acked-by: Yang Wang<kevinyang.wang@amd.com>
Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:24 +01:00
Ma Jun
d35b51646c drm/amdgpu: Fix the null pointer dereference to ras_manager
[ Upstream commit 4c11d30c95576937c6c35e6f29884761f2dddb43 ]

Check ras_manager before using it

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:24 +01:00
Sung Joon Kim
e87592f5e7 drm/amd/display: Check for NULL pointer
commit 4ab68e168ae1695f7c04fae98930740aaf7c50fa upstream.

[why & how]
Need to make sure plane_state is initialized
before accessing its members.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Xi (Alex) Liu <xi.liu@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 295d91cbc700651782a60572f83c24861607b648)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:13 +01:00
Dan Carpenter
aeaf2ac6b3 drm/amdgpu: Fix signedness bug in sdma_v4_0_process_trap_irq()
commit 6769a23697f17f9bf9365ca8ed62fe37e361a05a upstream.

The "instance" variable needs to be signed for the error handling to work.

Fixes: 8b2faf1a4f3b ("drm/amdgpu: add error handle to avoid out-of-bounds")
Reviewed-by: Bob Zhou <bob.zhou@amd.com>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Siddh Raman Pant <siddh.raman.pant@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:51 +01:00
Alex Deucher
4d288541e0 drm/amdgpu/atomfirmware: silence UBSAN warning
commit d0417264437a8fa05f894cabba5a26715b32d78e upstream.

This is a variable sized array.

Link: https://lists.freedesktop.org/archives/amd-gfx/2024-June/110420.html
Tested-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:42 +01:00
Alex Hung
b405fc64c5 drm/amd/display: Skip finding free audio for unknown engine_id
[ Upstream commit 1357b2165d9ad94faa4c4a20d5e2ce29c2ff29c3 ]

[WHY]
ENGINE_ID_UNKNOWN = -1 and can not be used as an array index. Plus, it
also means it is uninitialized and does not need free audio.

[HOW]
Skip and return NULL.

This fixes 2 OVERRUN issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:40 +01:00
Alex Hung
af33c419c5 drm/amd/display: Check pipe offset before setting vblank
[ Upstream commit 5396a70e8cf462ec5ccf2dc8de103c79de9489e6 ]

pipe_ctx has a size of MAX_PIPES so checking its index before accessing
the array.

This fixes an OVERRUN issue reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:40 +01:00
Alex Hung
eb5556c208 drm/amd/display: Check index msg_id before read or write
[ Upstream commit 59d99deb330af206a4541db0c4da8f73880fba03 ]

[WHAT]
msg_id is used as an array index and it cannot be a negative value, and
therefore cannot be equal to MOD_HDCP_MESSAGE_ID_INVALID (-1).

[HOW]
Check whether msg_id is valid before reading and setting.

This fixes 4 OVERRUN issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:40 +01:00
Ma Jun
a384294421 drm/amdgpu: Initialize timestamp for some legacy SOCs
[ Upstream commit 2e55bcf3d742a4946d862b86e39e75a95cc6f1c0 ]

Initialize the interrupt timestamp for some legacy SOCs
to fix the coverity issue "Uninitialized scalar variable"

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:40 +01:00