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authorOhad Sharabi <osharabi@habana.ai>2022-02-23 11:27:36 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-22 20:57:33 +0200
commit378b02dc017777e1dea304b472f2e2db836b6706 (patch)
tree1562c51b04f22944ed4085280ef22dca906d2895
parentcafada1fe932ce761d6c0bc1d56967e27abe4cff (diff)
downloadlinux-378b02dc017777e1dea304b472f2e2db836b6706.tar.bz2
habanalabs: set non-0 value in dram default page size
Looking forward we will need to report to the user what is the default page size used. This will be done more conveniently by explicitly updating the property rather than to rely on a "0 meaning default" value. Signed-off-by: Ohad Sharabi <osharabi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/misc/habanalabs/common/habanalabs.h5
-rw-r--r--drivers/misc/habanalabs/common/memory.c2
-rw-r--r--drivers/misc/habanalabs/gaudi/gaudi.c1
-rw-r--r--drivers/misc/habanalabs/goya/goya.c1
4 files changed, 8 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index 1edaf6ab67bd..af47accd4a56 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -528,6 +528,10 @@ struct hl_hints_range {
* @fw_app_cpu_boot_dev_sts1: bitmap representation of application security
* status reported by FW, bit description can be
* found in CPU_BOOT_DEV_STS1
+ * @device_mem_alloc_default_page_size: may be different than dram_page_size only for ASICs for
+ * which the property supports_user_set_page_size is true
+ * (i.e. the DRAM supports multiple page sizes), otherwise
+ * it will shall be equal to dram_page_size.
* @collective_first_sob: first sync object available for collective use
* @collective_first_mon: first monitor available for collective use
* @sync_stream_first_sob: first sync object available for sync stream use
@@ -626,6 +630,7 @@ struct asic_fixed_properties {
u32 fw_bootfit_cpu_boot_dev_sts1;
u32 fw_app_cpu_boot_dev_sts0;
u32 fw_app_cpu_boot_dev_sts1;
+ u32 device_mem_alloc_default_page_size;
u16 collective_first_sob;
u16 collective_first_mon;
u16 sync_stream_first_sob;
diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index a13506dd8119..f7f758f358ca 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -41,7 +41,7 @@ static int set_alloc_page_size(struct hl_device *hdev, struct hl_mem_in *args, u
return -EINVAL;
}
} else {
- psize = hdev->asic_prop.dram_page_size;
+ psize = prop->device_mem_alloc_default_page_size;
}
*page_size = psize;
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 21c2b678ff72..feb1323a8f4a 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -595,6 +595,7 @@ static int gaudi_set_fixed_properties(struct hl_device *hdev)
prop->mmu_hop_table_size = HOP_TABLE_SIZE_512_PTE;
prop->mmu_hop0_tables_total_size = HOP0_512_PTE_TABLES_TOTAL_SIZE;
prop->dram_page_size = PAGE_SIZE_2MB;
+ prop->device_mem_alloc_default_page_size = prop->dram_page_size;
prop->dram_supports_virtual_memory = false;
prop->pmmu.hop0_shift = MMU_V1_1_HOP0_SHIFT;
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index ec9358bcbf0b..5bd665188ea6 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -413,6 +413,7 @@ int goya_set_fixed_properties(struct hl_device *hdev)
prop->mmu_hop_table_size = HOP_TABLE_SIZE_512_PTE;
prop->mmu_hop0_tables_total_size = HOP0_512_PTE_TABLES_TOTAL_SIZE;
prop->dram_page_size = PAGE_SIZE_2MB;
+ prop->device_mem_alloc_default_page_size = prop->dram_page_size;
prop->dram_supports_virtual_memory = true;
prop->dmmu.hop0_shift = MMU_V1_0_HOP0_SHIFT;