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authorOmer Shpigelman <oshpigelman@habana.ai>2020-01-05 09:05:45 +0000
committerOded Gabbay <oded.gabbay@gmail.com>2020-03-24 10:54:16 +0200
commit64a7e2955d9a8a73098f13ccac95d80ad6efd98f (patch)
tree3112bc7e937bab36fe75367b944e090133cba38b /drivers/misc/habanalabs/goya
parent240c92fd04b272282399b047c20209ba6de4eac8 (diff)
downloadlinux-64a7e2955d9a8a73098f13ccac95d80ad6efd98f.tar.bz2
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/goya')
-rw-r--r--drivers/misc/habanalabs/goya/goya.c25
-rw-r--r--drivers/misc/habanalabs/goya/goya_coresight.c4
2 files changed, 16 insertions, 13 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 3c6794883db1..74785ccd2cb1 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -393,19 +393,21 @@ void goya_get_fixed_properties(struct hl_device *hdev)
prop->dmmu.hop2_mask = HOP2_MASK;
prop->dmmu.hop3_mask = HOP3_MASK;
prop->dmmu.hop4_mask = HOP4_MASK;
- prop->dmmu.huge_page_size = PAGE_SIZE_2MB;
+ prop->dmmu.start_addr = VA_DDR_SPACE_START;
+ prop->dmmu.end_addr = VA_DDR_SPACE_END;
+ prop->dmmu.page_size = PAGE_SIZE_2MB;
- /* No difference between PMMU and DMMU except of page size */
+ /* shifts and masks are the same in PMMU and DMMU */
memcpy(&prop->pmmu, &prop->dmmu, sizeof(prop->dmmu));
- prop->dmmu.page_size = PAGE_SIZE_2MB;
+ prop->pmmu.start_addr = VA_HOST_SPACE_START;
+ prop->pmmu.end_addr = VA_HOST_SPACE_END;
prop->pmmu.page_size = PAGE_SIZE_4KB;
- prop->va_space_host_start_address = VA_HOST_SPACE_START;
- prop->va_space_host_end_address = VA_HOST_SPACE_END;
- prop->va_space_dram_start_address = VA_DDR_SPACE_START;
- prop->va_space_dram_end_address = VA_DDR_SPACE_END;
- prop->dram_size_for_default_page_mapping =
- prop->va_space_dram_end_address;
+ /* PMMU and HPMMU are the same except of page size */
+ memcpy(&prop->pmmu_huge, &prop->pmmu, sizeof(prop->pmmu));
+ prop->pmmu_huge.page_size = PAGE_SIZE_2MB;
+
+ prop->dram_size_for_default_page_mapping = VA_DDR_SPACE_END;
prop->cfg_size = CFG_SIZE;
prop->max_asid = MAX_ASID;
prop->num_of_events = GOYA_ASYNC_EVENT_ID_SIZE;
@@ -3443,12 +3445,13 @@ static int goya_validate_dma_pkt_mmu(struct hl_device *hdev,
/*
* WA for HW-23.
* We can't allow user to read from Host using QMANs other than 1.
+ * PMMU and HPMMU addresses are equal, check only one of them.
*/
if (parser->hw_queue_id != GOYA_QUEUE_ID_DMA_1 &&
hl_mem_area_inside_range(le64_to_cpu(user_dma_pkt->src_addr),
le32_to_cpu(user_dma_pkt->tsize),
- hdev->asic_prop.va_space_host_start_address,
- hdev->asic_prop.va_space_host_end_address)) {
+ hdev->asic_prop.pmmu.start_addr,
+ hdev->asic_prop.pmmu.end_addr)) {
dev_err(hdev->dev,
"Can't DMA from host on queue other then 1\n");
return -EFAULT;
diff --git a/drivers/misc/habanalabs/goya/goya_coresight.c b/drivers/misc/habanalabs/goya/goya_coresight.c
index c1ee6e2b5dff..a1bc930d904f 100644
--- a/drivers/misc/habanalabs/goya/goya_coresight.c
+++ b/drivers/misc/habanalabs/goya/goya_coresight.c
@@ -364,8 +364,8 @@ static int goya_etr_validate_address(struct hl_device *hdev, u64 addr,
u64 range_start, range_end;
if (hdev->mmu_enable) {
- range_start = prop->va_space_dram_start_address;
- range_end = prop->va_space_dram_end_address;
+ range_start = prop->dmmu.start_addr;
+ range_end = prop->dmmu.end_addr;
} else {
range_start = prop->dram_user_base_address;
range_end = prop->dram_end_address;