start / last / max_entries are numbers of GPU pages, pfn / count are
numbers of CPU pages. Convert between them accordingly.
Fixes badness on systems with > 4K page size.
Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/106258
Reported-by: Matt Corallo <freedesktop@bluematt.me>
Tested-by: foxbat@ruin.net
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
uint64_t count;
max_entries = min(max_entries, 16ull * 1024ull);
- for (count = 1; count < max_entries; ++count) {
+ for (count = 1;
+ count < max_entries / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE);
+ ++count) {
uint64_t idx = pfn + count;
if (pages_addr[idx] !=
dma_addr = pages_addr;
} else {
addr = pages_addr[pfn];
- max_entries = count;
+ max_entries = count * (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE);
}
} else if (flags & AMDGPU_PTE_VALID) {
if (r)
return r;
- pfn += last - start + 1;
+ pfn += (last - start + 1) / (PAGE_SIZE / AMDGPU_GPU_PAGE_SIZE);
if (nodes && nodes->size == pfn) {
pfn = 0;
++nodes;