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drivers: Use conftest for vm_flags

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The conftest script has a test for checking if the vm_area struct has a
const vm_flags member. So enable this test and use the definition
generated in the appropriate drivers.

Bug 4374520

Change-Id: I0e7bd105fe8a821b0af23c0a5553b8d4468fa8c4
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3026924
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Jon Hunter
2023-12-02 16:40:32 +00:00
committed by mobile promotions
parent 732a0db90e
commit d0e427c6e1
6 changed files with 8 additions and 13 deletions
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3
Makefile
View File

@@ -26,9 +26,6 @@ endif
# Legacy GPIO support is removed in Linux v6.3 # Legacy GPIO support is removed in Linux v6.3
ifeq ($(shell test $(LINUX_VERSION) -ge $(LINUX_VERSION_6_3); echo $$?),0) ifeq ($(shell test $(LINUX_VERSION) -ge $(LINUX_VERSION_6_3); echo $$?),0)
export CONFIG_TEGRA_GPIO_LEGACY_DISABLE=y export CONFIG_TEGRA_GPIO_LEGACY_DISABLE=y
# Setting VM flag via API vm_flags_set
subdir-ccflags-y += -DNV_VM_FLAG_SET_API_AVAILABLE
endif endif
# Changes done in Linux 6.4 onwards # Changes done in Linux 6.4 onwards

6
drivers/gpu/drm/tegra/gem.c
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@@ -584,8 +584,7 @@ int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma)
* and set the vm_pgoff (used as a fake buffer offset by DRM) * and set the vm_pgoff (used as a fake buffer offset by DRM)
* to 0 as we want to map the whole buffer. * to 0 as we want to map the whole buffer.
*/ */
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 3, 0)) \ #if defined(NV_VM_AREA_STRUCT_HAS_CONST_VM_FLAGS) /* Linux v6.3 */
|| (defined(CONFIG_TEGRA_SYSTEM_TYPE_ACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)))
vm_flags_clear(vma, VM_PFNMAP); vm_flags_clear(vma, VM_PFNMAP);
#else #else
vma->vm_flags &= ~VM_PFNMAP; vma->vm_flags &= ~VM_PFNMAP;
@@ -603,8 +602,7 @@ int __tegra_gem_mmap(struct drm_gem_object *gem, struct vm_area_struct *vma)
} else { } else {
pgprot_t prot = vm_get_page_prot(vma->vm_flags); pgprot_t prot = vm_get_page_prot(vma->vm_flags);
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 3, 0)) \ #if defined(NV_VM_AREA_STRUCT_HAS_CONST_VM_FLAGS) /* Linux v6.3 */
|| (defined(CONFIG_TEGRA_SYSTEM_TYPE_ACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)))
vm_flags_set(vma, VM_MIXEDMAP); vm_flags_set(vma, VM_MIXEDMAP);
vm_flags_clear(vma, VM_PFNMAP); vm_flags_clear(vma, VM_PFNMAP);
#else #else

3
drivers/misc/nvscic2c-pcie/endpoint.c
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@@ -17,7 +17,6 @@
#include <linux/printk.h> #include <linux/printk.h>
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/version.h>
#include <linux/wait.h> #include <linux/wait.h>
#include <uapi/misc/nvscic2c-pcie-ioctl.h> #include <uapi/misc/nvscic2c-pcie-ioctl.h>
@@ -345,7 +344,7 @@ endpoint_fops_mmap(struct file *filp, struct vm_area_struct *vma)
} }
vma->vm_pgoff = 0; vma->vm_pgoff = 0;
#if defined(NV_VM_FLAG_SET_API_AVAILABLE) || (defined(CONFIG_TEGRA_SYSTEM_TYPE_ACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0))) #if defined(NV_VM_AREA_STRUCT_HAS_CONST_VM_FLAGS) /* Linux v6.3 */
vm_flags_set(vma, VM_DONTCOPY); vm_flags_set(vma, VM_DONTCOPY);
#else #else
vma->vm_flags |= (VM_DONTCOPY); // fork() not supported. vma->vm_flags |= (VM_DONTCOPY); // fork() not supported.

5
drivers/misc/nvscic2c-pcie/stream-extensions.c
View File

@@ -3,6 +3,8 @@
#define pr_fmt(fmt) "nvscic2c-pcie: stream-ext: " fmt #define pr_fmt(fmt) "nvscic2c-pcie: stream-ext: " fmt
#include <nvidia/conftest.h>
#include <linux/anon_inodes.h> #include <linux/anon_inodes.h>
#include <linux/device.h> #include <linux/device.h>
#include <linux/errno.h> #include <linux/errno.h>
@@ -15,7 +17,6 @@
#include <linux/slab.h> #include <linux/slab.h>
#include <linux/syscalls.h> #include <linux/syscalls.h>
#include <linux/tegra-pcie-edma.h> #include <linux/tegra-pcie-edma.h>
#include <linux/version.h>
#include <uapi/misc/nvscic2c-pcie-ioctl.h> #include <uapi/misc/nvscic2c-pcie-ioctl.h>
@@ -294,7 +295,7 @@ fops_mmap(struct file *filep, struct vm_area_struct *vma)
memaddr = stream_obj->aper; memaddr = stream_obj->aper;
vma->vm_pgoff = 0; vma->vm_pgoff = 0;
#if defined(NV_VM_FLAG_SET_API_AVAILABLE) || (defined(CONFIG_TEGRA_SYSTEM_TYPE_ACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0))) #if defined(NV_VM_AREA_STRUCT_HAS_CONST_VM_FLAGS) /* Linux v6.3 */
vm_flags_set(vma, VM_DONTCOPY); vm_flags_set(vma, VM_DONTCOPY);
#else #else
vma->vm_flags |= (VM_DONTCOPY); vma->vm_flags |= (VM_DONTCOPY);

3
drivers/video/tegra/nvmap/nvmap_dmabuf.c
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@@ -452,8 +452,7 @@ int __nvmap_map(struct nvmap_handle *h, struct vm_area_struct *vma)
} }
priv->handle = h; priv->handle = h;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 3, 0)) \ #if defined(NV_VM_AREA_STRUCT_HAS_CONST_VM_FLAGS) /* Linux v6.3 */
|| (defined(CONFIG_TEGRA_SYSTEM_TYPE_ACK) && (LINUX_VERSION_CODE >= KERNEL_VERSION(6, 1, 0)))
vm_flags_set(vma, VM_SHARED | VM_DONTEXPAND | vm_flags_set(vma, VM_SHARED | VM_DONTEXPAND |
VM_DONTDUMP | VM_DONTCOPY | VM_DONTDUMP | VM_DONTCOPY |
(h->heap_pgalloc ? 0 : VM_PFNMAP)); (h->heap_pgalloc ? 0 : VM_PFNMAP));

1
scripts/conftest/Makefile
View File

@@ -131,6 +131,7 @@ NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_of_get_dai_name_has_index_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tc_taprio_qopt_offload_struct_has_cmd NV_CONFTEST_FUNCTION_COMPILE_TESTS += tc_taprio_qopt_offload_struct_has_cmd
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_dev_iommu_get_stream_id NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_dev_iommu_get_stream_id
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_ivc_struct_has_iosys_map NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_ivc_struct_has_iosys_map
NV_CONFTEST_FUNCTION_COMPILE_TESTS += vm_area_struct_has_const_vm_flags
NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_fd_to_handle NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_fd_to_handle
NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_handle_to_fd NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_handle_to_fd
NV_CONFTEST_MACRO_COMPILE_TESTS ?= NV_CONFTEST_MACRO_COMPILE_TESTS ?=