| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 16 Mar 2022 13:41:29 +0200
From: Oded Gabbay <ogabbay@...nel.org>
To: linux-kernel@...r.kernel.org
Cc: Tomer Tayar <ttayar@...ana.ai>
Subject: [PATCH 11/11] habanalabs: modify dma_mask to be ASIC specific property
From: Tomer Tayar <ttayar@...ana.ai>
The required DMA mask is no longer based on input from the F/W, but it
is fixed per ASIC according to its address space.
As such, the per-ASIC function to get this value can be replaced with a
property variable.
Signed-off-by: Tomer Tayar <ttayar@...ana.ai>
Reviewed-by: Oded Gabbay <ogabbay@...nel.org>
Signed-off-by: Oded Gabbay <ogabbay@...nel.org>
---
drivers/misc/habanalabs/common/habanalabs.h | 7 ++-----
drivers/misc/habanalabs/common/habanalabs_drv.c | 3 ---
drivers/misc/habanalabs/common/pci/pci.c | 10 ++++------
drivers/misc/habanalabs/gaudi/gaudi.c | 10 ++--------
drivers/misc/habanalabs/goya/goya.c | 10 ++--------
5 files changed, 10 insertions(+), 30 deletions(-)
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h
index 0079f43bc596..3e7012f7b1a3 100644
--- a/drivers/misc/habanalabs/common/habanalabs.h
+++ b/drivers/misc/habanalabs/common/habanalabs.h
@@ -552,6 +552,7 @@ struct hl_hints_range {
* @configurable_stop_on_err: is stop-on-error option configurable via debugfs.
* @set_max_power_on_device_init: true if need to set max power in F/W on device init.
* @supports_user_set_page_size: true if user can set the allocation page size.
+ * @dma_mask: the dma mask to be set for this device
*/
struct asic_fixed_properties {
struct hw_queue_properties *hw_queues_props;
@@ -639,6 +640,7 @@ struct asic_fixed_properties {
u8 configurable_stop_on_err;
u8 set_max_power_on_device_init;
u8 supports_user_set_page_size;
+ u8 dma_mask;
};
/**
@@ -1274,8 +1276,6 @@ struct fw_load_mgr {
* @gen_wait_cb: Generate a wait CB.
* @reset_sob: Reset a SOB.
* @reset_sob_group: Reset SOB group
- * @set_dma_mask_from_fw: set the DMA mask in the driver according to the
- * firmware configuration
* @get_device_time: Get the device time.
* @collective_wait_init_cs: Generate collective master/slave packets
* and place them in the relevant cs jobs
@@ -1407,7 +1407,6 @@ struct hl_asic_funcs {
struct hl_gen_wait_properties *prop);
void (*reset_sob)(struct hl_device *hdev, void *data);
void (*reset_sob_group)(struct hl_device *hdev, u16 sob_group);
- void (*set_dma_mask_from_fw)(struct hl_device *hdev);
u64 (*get_device_time)(struct hl_device *hdev);
int (*collective_wait_init_cs)(struct hl_cs *cs);
int (*collective_wait_create_jobs)(struct hl_device *hdev,
@@ -2688,7 +2687,6 @@ struct hl_reset_info {
* huge pages.
* @init_done: is the initialization of the device done.
* @device_cpu_disabled: is the device CPU disabled (due to timeouts)
- * @dma_mask: the dma mask that was set for this device
* @in_debug: whether the device is in a state where the profiling/tracing infrastructure
* can be used. This indication is needed because in some ASICs we need to do
* specific operations to enable that infrastructure.
@@ -2813,7 +2811,6 @@ struct hl_device {
u8 pmmu_huge_range;
u8 init_done;
u8 device_cpu_disabled;
- u8 dma_mask;
u8 in_debug;
u8 cdev_sysfs_created;
u8 stop_on_err;
diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c
index e870c32a0733..95c000d7dc26 100644
--- a/drivers/misc/habanalabs/common/habanalabs_drv.c
+++ b/drivers/misc/habanalabs/common/habanalabs_drv.c
@@ -309,9 +309,6 @@ static int fixup_device_params(struct hl_device *hdev)
/* Enable only after the initialization of the device */
hdev->disabled = true;
- /* Set default DMA mask to 32 bits */
- hdev->dma_mask = 32;
-
return 0;
}
diff --git a/drivers/misc/habanalabs/common/pci/pci.c b/drivers/misc/habanalabs/common/pci/pci.c
index bb9ce22bafc4..610acd4a8057 100644
--- a/drivers/misc/habanalabs/common/pci/pci.c
+++ b/drivers/misc/habanalabs/common/pci/pci.c
@@ -392,6 +392,7 @@ enum pci_region hl_get_pci_memory_region(struct hl_device *hdev, u64 addr)
*/
int hl_pci_init(struct hl_device *hdev)
{
+ struct asic_fixed_properties *prop = &hdev->asic_prop;
struct pci_dev *pdev = hdev->pdev;
int rc;
@@ -419,17 +420,14 @@ int hl_pci_init(struct hl_device *hdev)
}
/* Driver must sleep in order for FW to finish the iATU configuration */
- if (hdev->asic_prop.iatu_done_by_fw) {
+ if (hdev->asic_prop.iatu_done_by_fw)
usleep_range(2000, 3000);
- hdev->asic_funcs->set_dma_mask_from_fw(hdev);
- }
- rc = dma_set_mask_and_coherent(&pdev->dev,
- DMA_BIT_MASK(hdev->dma_mask));
+ rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(prop->dma_mask));
if (rc) {
dev_err(hdev->dev,
"Failed to set dma mask to %d bits, error %d\n",
- hdev->dma_mask, rc);
+ prop->dma_mask, rc);
goto unmap_pci_bars;
}
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c
index 3cb461288533..f35fa7d7f918 100644
--- a/drivers/misc/habanalabs/gaudi/gaudi.c
+++ b/drivers/misc/habanalabs/gaudi/gaudi.c
@@ -674,6 +674,8 @@ static int gaudi_set_fixed_properties(struct hl_device *hdev)
prop->set_max_power_on_device_init = true;
+ prop->dma_mask = 48;
+
return 0;
}
@@ -755,8 +757,6 @@ static int gaudi_init_iatu(struct hl_device *hdev)
if (rc)
goto done;
- hdev->asic_funcs->set_dma_mask_from_fw(hdev);
-
/* Outbound Region 0 - Point to Host */
outbound_region.addr = HOST_PHYS_BASE;
outbound_region.size = HOST_PHYS_SIZE;
@@ -9065,11 +9065,6 @@ static void gaudi_reset_sob(struct hl_device *hdev, void *data)
kref_init(&hw_sob->kref);
}
-static void gaudi_set_dma_mask_from_fw(struct hl_device *hdev)
-{
- hdev->dma_mask = 48;
-}
-
static u64 gaudi_get_device_time(struct hl_device *hdev)
{
u64 device_time = ((u64) RREG32(mmPSOC_TIMESTAMP_CNTCVU)) << 32;
@@ -9474,7 +9469,6 @@ static const struct hl_asic_funcs gaudi_funcs = {
.gen_wait_cb = gaudi_gen_wait_cb,
.reset_sob = gaudi_reset_sob,
.reset_sob_group = gaudi_reset_sob_group,
- .set_dma_mask_from_fw = gaudi_set_dma_mask_from_fw,
.get_device_time = gaudi_get_device_time,
.collective_wait_init_cs = gaudi_collective_wait_init_cs,
.collective_wait_create_jobs = gaudi_collective_wait_create_jobs,
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c
index 38af7014b845..8c165ba3a6cc 100644
--- a/drivers/misc/habanalabs/goya/goya.c
+++ b/drivers/misc/habanalabs/goya/goya.c
@@ -488,6 +488,8 @@ int goya_set_fixed_properties(struct hl_device *hdev)
prop->set_max_power_on_device_init = true;
+ prop->dma_mask = 48;
+
return 0;
}
@@ -575,8 +577,6 @@ static int goya_init_iatu(struct hl_device *hdev)
if (rc)
goto done;
- hdev->asic_funcs->set_dma_mask_from_fw(hdev);
-
/* Outbound Region 0 - Point to Host */
outbound_region.addr = HOST_PHYS_BASE;
outbound_region.size = HOST_PHYS_SIZE;
@@ -5562,11 +5562,6 @@ static void goya_reset_sob_group(struct hl_device *hdev, u16 sob_group)
}
-static void goya_set_dma_mask_from_fw(struct hl_device *hdev)
-{
- hdev->dma_mask = 48;
-}
-
u64 goya_get_device_time(struct hl_device *hdev)
{
u64 device_time = ((u64) RREG32(mmPSOC_TIMESTAMP_CNTCVU)) << 32;
@@ -5754,7 +5749,6 @@ static const struct hl_asic_funcs goya_funcs = {
.gen_wait_cb = goya_gen_wait_cb,
.reset_sob = goya_reset_sob,
.reset_sob_group = goya_reset_sob_group,
- .set_dma_mask_from_fw = goya_set_dma_mask_from_fw,
.get_device_time = goya_get_device_time,
.collective_wait_init_cs = goya_collective_wait_init_cs,
.collective_wait_create_jobs = goya_collective_wait_create_jobs,
--
2.25.1
Powered by blists - more mailing lists