diff options
| author | Omer Shpigelman <oshpigelman@habana.ai> | 2020-01-05 12:05:45 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-03-24 11:54:16 +0300 |
| commit | 64a7e2955d9a8a73098f13ccac95d80ad6efd98f (patch) | |
| tree | 3112bc7e937bab36fe75367b944e090133cba38b /drivers/misc/habanalabs/debugfs.c | |
| parent | 240c92fd04b272282399b047c20209ba6de4eac8 (diff) | |
| download | linux-64a7e2955d9a8a73098f13ccac95d80ad6efd98f.tar.xz | |
habanalabs: split the host MMU properties
Host memory may be allocated with huge pages.
A different virtual range may be used for mapping in this case.
Add Huge PCI MMU (HPMMU) properties to support it.
This patch is a prerequisite for future ASICs support and has no effect on
Goya ASIC as currently a single virtual host range is used for all page
sizes.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/debugfs.c')
| -rw-r--r-- | drivers/misc/habanalabs/debugfs.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/misc/habanalabs/debugfs.c b/drivers/misc/habanalabs/debugfs.c index 20413e350343..599d17dfd542 100644 --- a/drivers/misc/habanalabs/debugfs.c +++ b/drivers/misc/habanalabs/debugfs.c @@ -393,9 +393,10 @@ static int mmu_show(struct seq_file *s, void *data) } is_dram_addr = hl_mem_area_inside_range(virt_addr, prop->dmmu.page_size, - prop->va_space_dram_start_address, - prop->va_space_dram_end_address); + prop->dmmu.start_addr, + prop->dmmu.end_addr); + /* shifts and masks are the same in PMMU and HPMMU, use one of them */ mmu_prop = is_dram_addr ? &prop->dmmu : &prop->pmmu; mutex_lock(&ctx->mmu_lock); @@ -547,12 +548,15 @@ static bool hl_is_device_va(struct hl_device *hdev, u64 addr) goto out; if (hdev->dram_supports_virtual_memory && - addr >= prop->va_space_dram_start_address && - addr < prop->va_space_dram_end_address) + (addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr)) return true; - if (addr >= prop->va_space_host_start_address && - addr < prop->va_space_host_end_address) + if (addr >= prop->pmmu.start_addr && + addr < prop->pmmu.end_addr) + return true; + + if (addr >= prop->pmmu_huge.start_addr && + addr < prop->pmmu_huge.end_addr) return true; out: return false; @@ -575,9 +579,10 @@ static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, } is_dram_addr = hl_mem_area_inside_range(virt_addr, prop->dmmu.page_size, - prop->va_space_dram_start_address, - prop->va_space_dram_end_address); + prop->dmmu.start_addr, + prop->dmmu.end_addr); + /* shifts and masks are the same in PMMU and HPMMU, use one of them */ mmu_prop = is_dram_addr ? &prop->dmmu : &prop->pmmu; mutex_lock(&ctx->mmu_lock); |