[PATCH 10/12] drm: allow removal of legacy codepaths (v4)
Daniel Vetter
daniel at ffwll.ch
Tue Apr 23 18:53:45 UTC 2019
On Tue, Apr 23, 2019 at 12:00:39PM +1000, Dave Airlie wrote:
> From: Dave Airlie <airlied at redhat.com>
>
> If you don't want the legacy drivers, then lets get rid of all the
> legacy codepaths from the core module.
>
> This drop the size of drm.ko for me by about 10%.
> 380515 7422 4192 392129 5fbc1 ../../drm-next-build/drivers/gpu/drm/drm.ko
> 351736 7298 4192 363226 58ada ../../drm-next-build/drivers/gpu/drm/drm.ko
>
> v2: drop drm_lock as well, fix some DMA->DRM typos
> v3: avoid ifdefs in mainline code
> v4: rework ioctl defs
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
Bikeshed looks appealing enough now I think :-) And the
DRM_LEGACY_IOCTL_DEF is a neat trick.
Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> ---
> drivers/gpu/drm/Makefile | 7 ++---
> drivers/gpu/drm/drm_internal.h | 2 ++
> drivers/gpu/drm/drm_ioc32.c | 13 +++++++-
> drivers/gpu/drm/drm_ioctl.c | 55 +++++++++++++++++++--------------
> drivers/gpu/drm/drm_irq.c | 2 ++
> drivers/gpu/drm/drm_legacy.h | 42 +++++++++++++++++++++++--
> drivers/gpu/drm/drm_vm.c | 2 ++
> drivers/gpu/drm/nouveau/Kconfig | 1 +
> 8 files changed, 93 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
> index 7ebae3d45505..340e075f6e06 100644
> --- a/drivers/gpu/drm/Makefile
> +++ b/drivers/gpu/drm/Makefile
> @@ -3,11 +3,9 @@
> # Makefile for the drm device driver. This driver provides support for the
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> -drm-y := drm_auth.o drm_bufs.o drm_cache.o \
> - drm_context.o drm_dma.o \
> +drm-y := drm_auth.o drm_cache.o \
> drm_file.o drm_gem.o drm_ioctl.o drm_irq.o \
> - drm_lock.o drm_memory.o drm_drv.o \
> - drm_scatter.o drm_pci.o \
> + drm_memory.o drm_drv.o drm_pci.o \
> drm_sysfs.o drm_hashtab.o drm_mm.o \
> drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o \
> drm_encoder_slave.o \
> @@ -21,6 +19,7 @@ drm-y := drm_auth.o drm_bufs.o drm_cache.o \
> drm_syncobj.o drm_lease.o drm_writeback.o drm_client.o \
> drm_atomic_uapi.o
>
> +drm-$(CONFIG_DRM_LEGACY) += drm_bufs.o drm_context.o drm_dma.o drm_scatter.o drm_lock.o
> drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o
> drm-$(CONFIG_DRM_VM) += drm_vm.o
> drm-$(CONFIG_COMPAT) += drm_ioc32.o
> diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
> index d9a483a5fce0..e19ac7ca602d 100644
> --- a/drivers/gpu/drm/drm_internal.h
> +++ b/drivers/gpu/drm/drm_internal.h
> @@ -71,8 +71,10 @@ int drm_legacy_modeset_ctl_ioctl(struct drm_device *dev, void *data,
> /* drm_irq.c */
>
> /* IOCTLS */
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_irq_control(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> +#endif
>
> int drm_crtc_get_sequence_ioctl(struct drm_device *dev, void *data,
> struct drm_file *filp);
> diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
> index 0e3043e08c69..374b372da58a 100644
> --- a/drivers/gpu/drm/drm_ioc32.c
> +++ b/drivers/gpu/drm/drm_ioc32.c
> @@ -156,6 +156,7 @@ static int compat_drm_setunique(struct file *file, unsigned int cmd,
> return -EINVAL;
> }
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> typedef struct drm_map32 {
> u32 offset; /* Requested physical address (0 for SAREA) */
> u32 size; /* Requested physical size (bytes) */
> @@ -239,6 +240,7 @@ static int compat_drm_rmmap(struct file *file, unsigned int cmd,
> map.handle = compat_ptr(handle);
> return drm_ioctl_kernel(file, drm_legacy_rmmap_ioctl, &map, DRM_AUTH);
> }
> +#endif
>
> typedef struct drm_client32 {
> int idx; /* Which client desired? */
> @@ -301,6 +303,7 @@ static int compat_drm_getstats(struct file *file, unsigned int cmd,
> return 0;
> }
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> typedef struct drm_buf_desc32 {
> int count; /* Number of buffers of this size */
> int size; /* Size in bytes */
> @@ -604,6 +607,7 @@ static int compat_drm_dma(struct file *file, unsigned int cmd,
>
> return 0;
> }
> +#endif
>
> #if IS_ENABLED(CONFIG_AGP)
> typedef struct drm_agp_mode32 {
> @@ -748,6 +752,7 @@ static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
> }
> #endif /* CONFIG_AGP */
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> typedef struct drm_scatter_gather32 {
> u32 size; /**< In bytes -- will round to page boundary */
> u32 handle; /**< Used for mapping / unmapping */
> @@ -788,7 +793,7 @@ static int compat_drm_sg_free(struct file *file, unsigned int cmd,
> return drm_ioctl_kernel(file, drm_legacy_sg_free, &request,
> DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY);
> }
> -
> +#endif
> #if defined(CONFIG_X86)
> typedef struct drm_update_draw32 {
> drm_drawable_t handle;
> @@ -903,10 +908,13 @@ static struct {
> #define DRM_IOCTL32_DEF(n, f) [DRM_IOCTL_NR(n##32)] = {.fn = f, .name = #n}
> DRM_IOCTL32_DEF(DRM_IOCTL_VERSION, compat_drm_version),
> DRM_IOCTL32_DEF(DRM_IOCTL_GET_UNIQUE, compat_drm_getunique),
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> DRM_IOCTL32_DEF(DRM_IOCTL_GET_MAP, compat_drm_getmap),
> +#endif
> DRM_IOCTL32_DEF(DRM_IOCTL_GET_CLIENT, compat_drm_getclient),
> DRM_IOCTL32_DEF(DRM_IOCTL_GET_STATS, compat_drm_getstats),
> DRM_IOCTL32_DEF(DRM_IOCTL_SET_UNIQUE, compat_drm_setunique),
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> DRM_IOCTL32_DEF(DRM_IOCTL_ADD_MAP, compat_drm_addmap),
> DRM_IOCTL32_DEF(DRM_IOCTL_ADD_BUFS, compat_drm_addbufs),
> DRM_IOCTL32_DEF(DRM_IOCTL_MARK_BUFS, compat_drm_markbufs),
> @@ -918,6 +926,7 @@ static struct {
> DRM_IOCTL32_DEF(DRM_IOCTL_GET_SAREA_CTX, compat_drm_getsareactx),
> DRM_IOCTL32_DEF(DRM_IOCTL_RES_CTX, compat_drm_resctx),
> DRM_IOCTL32_DEF(DRM_IOCTL_DMA, compat_drm_dma),
> +#endif
> #if IS_ENABLED(CONFIG_AGP)
> DRM_IOCTL32_DEF(DRM_IOCTL_AGP_ENABLE, compat_drm_agp_enable),
> DRM_IOCTL32_DEF(DRM_IOCTL_AGP_INFO, compat_drm_agp_info),
> @@ -926,8 +935,10 @@ static struct {
> DRM_IOCTL32_DEF(DRM_IOCTL_AGP_BIND, compat_drm_agp_bind),
> DRM_IOCTL32_DEF(DRM_IOCTL_AGP_UNBIND, compat_drm_agp_unbind),
> #endif
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc),
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free),
> +#endif
> #if defined(CONFIG_X86) || defined(CONFIG_IA64)
> DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw),
> #endif
> diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
> index ce8a70875bd5..5878145077d0 100644
> --- a/drivers/gpu/drm/drm_ioctl.c
> +++ b/drivers/gpu/drm/drm_ioctl.c
> @@ -553,6 +553,12 @@ EXPORT_SYMBOL(drm_ioctl_permit);
> .name = #ioctl \
> }
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> +#define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags) DRM_IOCTL_DEF(ioctl, _func, _flags)
> +#else
> +#define DRM_LEGACY_IOCTL_DEF(ioctl, _func, _flags) DRM_IOCTL_DEF(ioctl, drm_invalid_op, _flags)
> +#endif
> +
> /* Ioctl table */
> static const struct drm_ioctl_desc drm_ioctls[] = {
> DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version,
> @@ -560,7 +566,9 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
> DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, DRM_UNLOCKED),
> DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, DRM_UNLOCKED),
> DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_legacy_getmap_ioctl, DRM_UNLOCKED),
> +
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_legacy_getmap_ioctl, DRM_UNLOCKED),
> +
> DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED),
> DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED),
> DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED|DRM_RENDER_ALLOW),
> @@ -572,39 +580,38 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
> DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_UNLOCKED|DRM_MASTER),
>
> - DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_legacy_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_legacy_rmmap_ioctl, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_legacy_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_legacy_rmmap_ioctl, DRM_AUTH),
>
> - DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_legacy_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_legacy_getsareactx, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_legacy_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_legacy_getsareactx, DRM_AUTH),
>
> DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_UNLOCKED|DRM_ROOT_ONLY),
> DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_UNLOCKED|DRM_ROOT_ONLY),
>
> - DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_legacy_addctx, DRM_AUTH|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_legacy_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_legacy_getctx, DRM_AUTH),
> - DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_legacy_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_legacy_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_legacy_resctx, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_legacy_addctx, DRM_AUTH|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_legacy_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_legacy_getctx, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_legacy_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_legacy_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_legacy_resctx, DRM_AUTH),
>
> DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
>
> - DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_legacy_lock, DRM_AUTH),
> - DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_legacy_unlock, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_LOCK, drm_legacy_lock, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_legacy_unlock, DRM_AUTH),
>
> DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
>
> - DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_legacy_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_legacy_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_legacy_infobufs, DRM_AUTH),
> - DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_legacy_mapbufs, DRM_AUTH),
> - DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_legacy_freebufs, DRM_AUTH),
> - DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_legacy_dma_ioctl, DRM_AUTH),
> -
> - DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_legacy_irq_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_legacy_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_legacy_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_legacy_infobufs, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_legacy_mapbufs, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_legacy_freebufs, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_DMA, drm_legacy_dma_ioctl, DRM_AUTH),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_legacy_irq_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
>
> #if IS_ENABLED(CONFIG_AGP)
> DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> @@ -617,8 +624,8 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
> DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> #endif
>
> - DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_legacy_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> - DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_legacy_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_legacy_sg_alloc, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
> + DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_legacy_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
>
> DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank_ioctl, DRM_UNLOCKED),
>
> diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
> index 9bd8908d5fd8..02f38cc9f468 100644
> --- a/drivers/gpu/drm/drm_irq.c
> +++ b/drivers/gpu/drm/drm_irq.c
> @@ -213,6 +213,7 @@ int drm_irq_uninstall(struct drm_device *dev)
> }
> EXPORT_SYMBOL(drm_irq_uninstall);
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_irq_control(struct drm_device *dev, void *data,
> struct drm_file *file_priv)
> {
> @@ -253,3 +254,4 @@ int drm_legacy_irq_control(struct drm_device *dev, void *data,
> return -EINVAL;
> }
> }
> +#endif
> diff --git a/drivers/gpu/drm/drm_legacy.h b/drivers/gpu/drm/drm_legacy.h
> index 8ee2de06f999..3c05452a7137 100644
> --- a/drivers/gpu/drm/drm_legacy.h
> +++ b/drivers/gpu/drm/drm_legacy.h
> @@ -42,11 +42,19 @@ struct drm_file;
> #define DRM_KERNEL_CONTEXT 0
> #define DRM_RESERVED_CONTEXTS 1
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_ctxbitmap_init(struct drm_device *dev);
> void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev);
> -void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
> void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file);
> +#else
> +static inline void drm_legacy_ctxbitmap_init(struct drm_device *dev) {}
> +static inline void drm_legacy_ctxbitmap_cleanup(struct drm_device *dev) {}
> +static inline void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file) {}
> +#endif
>
> +void drm_legacy_ctxbitmap_free(struct drm_device *dev, int ctx_handle);
> +
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_resctx(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_addctx(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_getctx(struct drm_device *d, void *v, struct drm_file *f);
> @@ -56,6 +64,7 @@ int drm_legacy_rmctx(struct drm_device *d, void *v, struct drm_file *f);
>
> int drm_legacy_setsareactx(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_getsareactx(struct drm_device *d, void *v, struct drm_file *f);
> +#endif
>
> /*
> * Generic Buffer Management
> @@ -73,16 +82,20 @@ static inline void drm_legacy_remove_map_hash(struct drm_device *dev)
> drm_ht_remove(&dev->map_hash);
> }
>
> +
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> int drm_legacy_addmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_rmmap_ioctl(struct drm_device *d, void *v, struct drm_file *f);
> +
> int drm_legacy_addbufs(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_infobufs(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_markbufs(struct drm_device *d, void *v, struct drm_file *f);
> 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);
> +#endif
>
> int __drm_legacy_infobufs(struct drm_device *, void *, int *,
> int (*)(void *, int, struct drm_buf_entry *));
> @@ -91,11 +104,17 @@ int __drm_legacy_mapbufs(struct drm_device *, void *, int *,
> int (*)(void *, int, unsigned long, struct drm_buf *),
> struct drm_file *);
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_master_rmmaps(struct drm_device *dev,
> struct drm_master *master);
> void drm_legacy_rmmaps(struct drm_device *dev);
> +#else
> +static inline void drm_legacy_master_rmmaps(struct drm_device *dev,
> + struct drm_master *master) {}
> +static inline void drm_legacy_rmmaps(struct drm_device *dev) {}
> +#endif
>
> -#ifdef CONFIG_DRM_VM
> +#if IS_ENABLED(CONFIG_DRM_VM) && IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_vma_flush(struct drm_device *d);
> #else
> static inline void drm_legacy_vma_flush(struct drm_device *d)
> @@ -117,24 +136,43 @@ struct drm_agp_mem {
> };
>
> /* drm_lock.c */
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
> int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
> void drm_legacy_lock_release(struct drm_device *dev, struct file *filp);
> +#else
> +static inline void drm_legacy_lock_release(struct drm_device *dev, struct file *filp) {}
> +#endif
>
> /* DMA support */
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> int drm_legacy_dma_setup(struct drm_device *dev);
> void drm_legacy_dma_takedown(struct drm_device *dev);
> +#else
> +static inline int drm_legacy_dma_setup(struct drm_device *dev)
> +{
> + return 0;
> +}
> +#endif
> +
> void drm_legacy_free_buffer(struct drm_device *dev,
> struct drm_buf * buf);
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_reclaim_buffers(struct drm_device *dev,
> struct drm_file *filp);
> +#else
> +static inline void drm_legacy_reclaim_buffers(struct drm_device *dev,
> + struct drm_file *filp) {}
> +#endif
>
> /* Scatter Gather Support */
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_sg_cleanup(struct drm_device *dev);
> int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> int drm_legacy_sg_free(struct drm_device *dev, void *data,
> struct drm_file *file_priv);
> +#endif
>
> static inline void drm_legacy_init_members(struct drm_device *dev)
> {
> diff --git a/drivers/gpu/drm/drm_vm.c b/drivers/gpu/drm/drm_vm.c
> index 8987501f53b2..10cf83d569e1 100644
> --- a/drivers/gpu/drm/drm_vm.c
> +++ b/drivers/gpu/drm/drm_vm.c
> @@ -646,6 +646,7 @@ int drm_legacy_mmap(struct file *filp, struct vm_area_struct *vma)
> }
> EXPORT_SYMBOL(drm_legacy_mmap);
>
> +#if IS_ENABLED(CONFIG_DRM_LEGACY)
> void drm_legacy_vma_flush(struct drm_device *dev)
> {
> struct drm_vma_entry *vma, *vma_temp;
> @@ -656,3 +657,4 @@ void drm_legacy_vma_flush(struct drm_device *dev)
> kfree(vma);
> }
> }
> +#endif
> diff --git a/drivers/gpu/drm/nouveau/Kconfig b/drivers/gpu/drm/nouveau/Kconfig
> index 3ae7a4cfc6bb..cbcf7d2c089d 100644
> --- a/drivers/gpu/drm/nouveau/Kconfig
> +++ b/drivers/gpu/drm/nouveau/Kconfig
> @@ -23,6 +23,7 @@ config DRM_NOUVEAU
> config NOUVEAU_LEGACY_CTX_SUPPORT
> bool "Nouveau legacy context support"
> select DRM_VM
> + select DRM_LEGACY
> default y
> help
> There was a version of the nouveau DDX that relied on legacy
> --
> 2.20.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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