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ufs: Fix Tegra UFS for Linux v6.13

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In Linux v6.13, the quirk definition 'UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS'
was removed and replaced with a function pointer than can be used to set
the DMA mask as needed for a given device. Update the Tegra UFS driver
to fix support for Linux v6.13. Note that prior to Linux v6.13, the flag
'UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS' would set the DMA mask to 32-bits
and so this change is equivalent to the configuration of prior kernels.

Bug 4991705

Change-Id: I859331e9eea918d2438d68b871642fee5e4148e0
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3283447
(cherry picked from commit 65cd166a825e33cb77c0f7ca8ae146a3e296fda6)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3499754
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
Tested-by: Brad Griffis <bgriffis@nvidia.com>
This commit is contained in:
Jon Hunter
2025-01-14 14:37:58 +00:00
committed by mobile promotions
parent d9b938131d
commit 774a1ec13d
3 changed files with 37 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
drivers/scsi/ufs/ufs-tegra-common.c
View File

@@ -5,6 +5,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/time.h>
#include <linux/of.h>
#include <linux/platform_device.h>
@@ -1428,6 +1429,7 @@ static int ufs_tegra_config_soc_data(struct ufs_tegra_host *ufs_tegra)
ufs_tegra->enable_scramble =
of_property_read_bool(np, "nvidia,enable-scramble");
#if !defined(NV_UFS_HBA_VARIANT_OPS_HAS_SET_DMA_MASK) /* Linux v6.13 */
if (ufs_tegra->soc->chip_id >= TEGRA234) {
#if defined(NV_UFSHCD_QUIRKS_ENUM_HAS_UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) /* Linux 6.0 */
ufs_tegra->hba->quirks |= UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS;
@@ -1436,6 +1438,7 @@ static int ufs_tegra_config_soc_data(struct ufs_tegra_host *ufs_tegra)
return -ENOTSUPP;
#endif
}
#endif
return 0;
}
@@ -1872,6 +1875,18 @@ static void ufs_tegra_exit(struct ufs_hba *hba)
#endif
}
#if defined(NV_UFS_HBA_VARIANT_OPS_HAS_SET_DMA_MASK) /* Linux v6.13 */
static int ufs_tegra_set_dma_mask(struct ufs_hba *hba)
{
struct ufs_tegra_host *ufs_tegra = hba->priv;
if (ufs_tegra->soc->chip_id >= TEGRA234)
return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32));
return 0;
}
#endif
/**
* struct ufs_hba_tegra_vops - UFS TEGRA specific variant operations
*
@@ -1887,6 +1902,9 @@ struct ufs_hba_variant_ops ufs_hba_tegra_vops = {
.hce_enable_notify = ufs_tegra_hce_enable_notify,
.link_startup_notify = ufs_tegra_link_startup_notify,
.pwr_change_notify = ufs_tegra_pwr_change_notify,
#if defined(NV_UFS_HBA_VARIANT_OPS_HAS_SET_DMA_MASK) /* Linux v6.13 */
.set_dma_mask = ufs_tegra_set_dma_mask,
#endif
};
static int ufs_tegra_probe(struct platform_device *pdev)

1
scripts/conftest/Makefile
View File

@@ -192,6 +192,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += thermal_zone_for_each_trip
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_send_xchar_has_u8_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_write_has_u8_ptr_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_set_termios_has_const_ktermios_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_has_set_dma_mask
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_suspend_has_status_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufshcd_quirks_enum_has_ufshcd_quirk_broken_64bit_address
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_connection_struct_present

18
scripts/conftest/conftest.sh
View File

@@ -8271,6 +8271,24 @@ compile_test() {
compile_check_conftest "$CODE" "NV_TTY_OPERATIONS_STRUCT_SET_TERMIOS_HAS_CONST_KTERMIOS_ARG" "" "types"
;;
ufs_hba_variant_ops_has_set_dma_mask)
#
# Determine if the 'struct ufs_hba_variant_ops' has a 'set_dma_mask'
# function pointer.
#
# In Linux v6.13, commit 78bc671bd150 ("scsi: ufs: core: Make DMA
# mask configuration more flexible)" add a 'set_dma_mask' function
# pointer to the 'ufs_hba_variant_ops' structure.
#
CODE="
#include <ufs/ufshcd.h>
int conftest_ufs_hba_variant_ops_has_set_dma_mask(void) {
return offsetof(struct ufs_hba_variant_ops, set_dma_mask);
}"
compile_check_conftest "$CODE" "NV_UFS_HBA_VARIANT_OPS_HAS_SET_DMA_MASK" "" "types"
;;
ufs_hba_variant_ops_suspend_has_status_arg)
#
# Determine if the 'suspend' function for the