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drm: compile drm_vm.c only when needed

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drm_vm.c functions are only need for DRM_LEGACY and DRM_NOUVEAU.
Use a new DRM_VM to define when drm_vm.c in needed.

stub drm_legacy_vma_flush() to avoid compilation issues

version 4:
- a "config DRM_VM" in Kconfig

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
[danvet: Fix conflict.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Benjamin Gaignard 2017-01-04 10:12:56 +01:00 committed by Daniel Vetter
parent 82f42e4cc1
commit 99c48e1e38
4 changed files with 15 additions and 1 deletions
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5
drivers/gpu/drm/Kconfig
View File

@ -136,6 +136,10 @@ config DRM_KMS_CMA_HELPER
help
Choose this if you need the KMS CMA helper functions
config DRM_VM
bool
depends on DRM
source "drivers/gpu/drm/i2c/Kconfig"
source "drivers/gpu/drm/arm/Kconfig"
@ -264,6 +268,7 @@ source "drivers/gpu/drm/meson/Kconfig"
menuconfig DRM_LEGACY
bool "Enable legacy drivers (DANGEROUS)"
depends on DRM
select DRM_VM
help
Enable legacy DRI1 drivers. Those drivers expose unsafe and dangerous
APIs to user-space, which can be used to circumvent access

3
drivers/gpu/drm/Makefile
View File

@ -5,7 +5,7 @@
drm-y := drm_auth.o drm_bufs.o drm_cache.o \
drm_context.o drm_dma.o \
drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
drm_lock.o drm_memory.o drm_drv.o drm_vm.o \
drm_lock.o drm_memory.o drm_drv.o \
drm_scatter.o drm_pci.o \
drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o \
@ -19,6 +19,7 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \
drm_dumb_buffers.o drm_mode_config.o
drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
drm-$(CONFIG_DRM_VM) += drm_vm.o
drm-$(CONFIG_COMPAT) += drm_ioc32.o
drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
drm-$(CONFIG_PCI) += ati_pcigart.o

7
drivers/gpu/drm/drm_legacy.h
View File

@ -74,7 +74,14 @@ int drm_legacy_freebufs(struct drm_device *d, void *v, struct drm_file *f);
int drm_legacy_mapbufs(struct drm_device *d, void *v, struct drm_file *f);
int drm_legacy_dma_ioctl(struct drm_device *d, void *v, struct drm_file *f);
#ifdef CONFIG_DRM_VM
void drm_legacy_vma_flush(struct drm_device *d);
#else
static inline void drm_legacy_vma_flush(struct drm_device *d)
{
/* do nothing */
}
#endif
/*
* AGP Support

1
drivers/gpu/drm/nouveau/Kconfig
View File

@ -16,6 +16,7 @@ config DRM_NOUVEAU
select INPUT if ACPI && X86
select THERMAL if ACPI && X86
select ACPI_VIDEO if ACPI && X86
select DRM_VM
help
Choose this option for open-source NVIDIA support.