diff options
| author | Oded Gabbay <ogabbay@kernel.org> | 2022-01-10 17:01:50 +0200 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2022-02-28 14:22:02 +0200 |
| commit | 2491533808d71c2229582d7427dffbd9494cc85f (patch) | |
| tree | 0a294bd980fcc36ecfadc5afead9c3d9304bfb75 | |
| parent | b62ff1a4123693551383f306ab736758e6fe0d84 (diff) | |
| download | iio-2491533808d71c2229582d7427dffbd9494cc85f.tar.gz | |
habanalabs: remove power9 workaround for dma support
We don't need this workaround anymore.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 3 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/common/pci/pci.c | 5 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 9 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 11 |
4 files changed, 3 insertions, 25 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index b8acfef9577ae..6c7a602104161 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -2604,8 +2604,6 @@ struct hl_reset_info { * @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. - * @power9_64bit_dma_enable: true to enable 64-bit DMA mask support. Relevant - * only to POWER9 machines. * @cdev_sysfs_created: were char devices and sysfs nodes created. * @stop_on_err: true if engines should stop on error. * @supports_sync_stream: is sync stream supported. @@ -2728,7 +2726,6 @@ struct hl_device { u8 device_cpu_disabled; u8 dma_mask; u8 in_debug; - u8 power9_64bit_dma_enable; u8 cdev_sysfs_created; u8 stop_on_err; u8 supports_sync_stream; diff --git a/drivers/misc/habanalabs/common/pci/pci.c b/drivers/misc/habanalabs/common/pci/pci.c index 0b5366cc84fdb..a6ffa342070c4 100644 --- a/drivers/misc/habanalabs/common/pci/pci.c +++ b/drivers/misc/habanalabs/common/pci/pci.c @@ -338,10 +338,7 @@ int hl_pci_set_outbound_region(struct hl_device *hdev, lower_32_bits(outbound_region_end_address)); rc |= hl_pci_iatu_write(hdev, 0x014, 0); - if ((hdev->power9_64bit_dma_enable) && (hdev->dma_mask == 64)) - rc |= hl_pci_iatu_write(hdev, 0x018, 0x08000000); - else - rc |= hl_pci_iatu_write(hdev, 0x018, 0); + rc |= hl_pci_iatu_write(hdev, 0x018, 0); rc |= hl_pci_iatu_write(hdev, 0x020, upper_32_bits(outbound_region_end_address)); diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index c4e41856ad319..66c90164be6bb 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -9008,14 +9008,7 @@ static void gaudi_reset_sob(struct hl_device *hdev, void *data) static void gaudi_set_dma_mask_from_fw(struct hl_device *hdev) { - if (RREG32(mmPSOC_GLOBAL_CONF_NON_RST_FLOPS_0) == - HL_POWER9_HOST_MAGIC) { - hdev->power9_64bit_dma_enable = 1; - hdev->dma_mask = 64; - } else { - hdev->power9_64bit_dma_enable = 0; - hdev->dma_mask = 48; - } + hdev->dma_mask = 48; } static u64 gaudi_get_device_time(struct hl_device *hdev) diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index 916a718dddaca..1bd23578cb836 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -5554,16 +5554,7 @@ 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) { - if (RREG32(mmPSOC_GLOBAL_CONF_NON_RST_FLOPS_0) == - HL_POWER9_HOST_MAGIC) { - dev_dbg(hdev->dev, "Working in 64-bit DMA mode\n"); - hdev->power9_64bit_dma_enable = 1; - hdev->dma_mask = 64; - } else { - dev_dbg(hdev->dev, "Working in 48-bit DMA mode\n"); - hdev->power9_64bit_dma_enable = 0; - hdev->dma_mask = 48; - } + hdev->dma_mask = 48; } u64 goya_get_device_time(struct hl_device *hdev) |