kernel/linux.git/drivers/gpu/drm/amd/amdgpu/mmhub_v2_0.c, branch linux-7.0.yLinux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=linux-7.0.y2026-03-17T16:18:34+00:00drm/amdgpu/mmhub2.0: add bounds checking for cid2026-03-17T16:18:34+00:00Alex Deucheralexander.deucher@amd.com2026-03-04T22:22:43+00:00urn:sha1:0b26edac4ac5535df1f63e6e8ab44c24fe1acad7
The value should never exceed the array size as those
are the only values the hardware is expected to return,
but add checks anyway.
Reviewed-by: Benjamin Cheng <benjamin.cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit e064cef4b53552602bb6ac90399c18f662f3cacd)
Cc: stable@vger.kernel.org
drm/amdgpu: fix overflowed constant warning in mmhub_set_clockgating()2024-06-14T20:17:12+00:00Bob Zhoubob.zhou@amd.com2024-06-07T08:33:35+00:00urn:sha1:be6a69b21a3517122ba6cf7ab8f62f4803637dbe
To fix potential overflowed constant warning, modify the variables to u32
for getting the return value of RREG32_SOC15().
Signed-off-by: Bob Zhou <bob.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: add hub->ctx_distance in setup_vmid_config2023-10-09T20:59:06+00:00Yifan Zhangyifan1.zhang@amd.com2023-09-28T06:02:02+00:00urn:sha1:061863e5dbce4ca2fd66949c7466dee4e49cb8da
add hub->ctx_distance when read CONTEXT1_CNTL, align w/
write back operation.
v2: fix coding style errors reported by checkpatch.pl (Christian)
Signed-off-by: Yifan Zhang <yifan1.zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lang Yu <lang.yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: Use function for IP version check2023-09-20T16:23:28+00:00Lijo Lazarlijo.lazar@amd.com2023-09-11T08:18:11+00:00urn:sha1:4e8303cf2c4dd27374a16a8881ec1a1cd5baf86f
Use an inline function for version check. Gives more flexibility to
handle any format changes.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: introduce vmhub definition for multi-partition cases (v3)2023-06-09T13:40:03+00:00Hawking ZhangHawking.Zhang@amd.com2022-09-14T08:35:50+00:00urn:sha1:f4caf5842652f08e024741ef6d423cb0c101d863
v1: Each partition has its own gfxhub or mmhub. adjust
the num of MAX_VMHUBS and the GFXHUB/MMHUB layout (Le)
v2: re-design the AMDGPU_GFXHUB/AMDGPU_MMHUB layout (Le)
v3: apply the gfxhub/mmhub layout to new IPs (Hawking)
v4: fix up gmc11 (Alex)
v5: rebase (Alex)
Signed-off-by: Le Ma <le.ma@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: rename vram_scratch into mem_scratch2023-01-03T21:50:03+00:00Christian Königchristian.koenig@amd.com2022-01-21T15:59:36+00:00urn:sha1:7ccfd79fdd6c1a3b44badc994d9581fc9e634562
Rename vram_scratch into mem_scratch and allow allocating it into GTT as
well.
The only problem with that is that we won't have a default page for the
system aperture any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: fix mmhub register base coding error2022-12-06T15:18:18+00:00Yang WangKevinYang.Wang@amd.com2022-12-05T13:16:26+00:00urn:sha1:347fafe0eb46df941965c355c77ce480e4d49f1f
fix MMHUB register base coding error.
Fixes: ec6837591f992 ("drm/amdgpu/gmc10: program the smallK fragment size")
Signed-off-by: Yang Wang <KevinYang.Wang@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drm/amdgpu: Remove ATC L2 access for MMHUB 2.1.x2022-10-24T18:34:26+00:00Lijo Lazarlijo.lazar@amd.com2022-09-30T05:13:08+00:00urn:sha1:20293269d81779a0d0c0865f5877b240c3335c97
MMHUB 2.1.x versions don't have ATCL2. Remove accesses to ATCL2 registers.
Since they are non-existing registers, read access will cause a
'Completer Abort' and gets reported when AER is enabled with the below patch.
Tagging with the patch so that this is backported along with it.
v2: squash in uninitialized warning fix (Nathan Chancellor)
Fixes: 8795e182b02d ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drm/amdgpu: save the setting of VM_CONTEXT_CNTL2022-05-04T13:57:22+00:00Jack XiaoJack.Xiao@amd.com2021-05-12T07:53:48+00:00urn:sha1:d7dab4fc44ad020b48a893dae728190e2f01f14d
MES firmware needs the setting of VM_CONTEXT_CNTL to perform
vmid switch. Save the initial setting when hub initializing.
Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amdgpu: expand cg_flags from u32 to u642022-04-08T21:24:24+00:00Evan Quanevan.quan@amd.com2022-03-25T10:00:02+00:00urn:sha1:25faeddcf3c3f31f9f43de5c55f7cbdd13d3ebc7
With this, we can support more CG flags.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>