diff options
| author | D Scott Phillips <scott@os.amperecomputing.com> | 2024-09-03 09:45:32 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-09-04 16:39:58 +0100 |
| commit | eeb8fdfcf0901578c26ecfb11e814f36bc9a92f5 (patch) | |
| tree | 8db23f198f15bc7752a762e68f3818517e729342 /tools/perf/scripts/python/powerpc-hcalls.py | |
| parent | 7eced90b202d63cdc1b9b11b1353adb1389830f9 (diff) | |
arm64: Expose the end of the linear map in PHYSMEM_END
The memory hot-plug and resource management code needs to know the
largest address which can fit in the linear map, so set PHYSMEM_END for
that purpose.
This fixes a crash at boot when amdgpu tries to create
DEVICE_PRIVATE_MEMORY and is given a physical address by the resource
management code which is outside the range which can have a `struct
page`
| Unable to handle kernel paging request at virtual address 000001ffa6000034
| user pgtable: 4k pages, 48-bit VAs, pgdp=000008000287c000
| [000001ffa6000034] pgd=0000000000000000, p4d=0000000000000000
| Call trace:
| __init_zone_device_page.constprop.0+0x2c/0xa8
| memmap_init_zone_device+0xf0/0x210
| pagemap_range+0x1e0/0x410
| memremap_pages+0x18c/0x2e0
| devm_memremap_pages+0x30/0x90
| kgd2kfd_init_zone_device+0xf0/0x200 [amdgpu]
| amdgpu_device_ip_init+0x674/0x888 [amdgpu]
| amdgpu_device_init+0x7a4/0xea0 [amdgpu]
| amdgpu_driver_load_kms+0x28/0x1c0 [amdgpu]
| amdgpu_pci_probe+0x1a0/0x560 [amdgpu]
Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Link: https://lore.kernel.org/r/20240903164532.3874988-1-scott@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/powerpc-hcalls.py')
0 files changed, 0 insertions, 0 deletions