20. 8. 21. 오전 12:08에 Robin Murphy 이(가) 쓴 글:
> Now that arch/arm is wired up for default domains and iommu-dma, we can
> consolidate the shared mapping code onto the generic IOMMU API version,
> and retire the arch-specific implementation.
>
> Signed-off-by: Robin Murphy
>
> ---
> This is a cheeky revert of 07dc3678bacc ("drm/exynos: Fix cleanup of
> IOMMU related objects"), plus removal of the remaining arm_iommu_*
> references on top.
Thanks for cleanup.
Acked-by: Inki Dae
Thanks,
Inki Dae
> ---
> drivers/gpu/drm/exynos/exynos5433_drm_decon.c | 5 +-
> drivers/gpu/drm/exynos/exynos7_drm_decon.c| 5 +-
> drivers/gpu/drm/exynos/exynos_drm_dma.c | 61 +++
> drivers/gpu/drm/exynos/exynos_drm_drv.h | 6 +-
> drivers/gpu/drm/exynos/exynos_drm_fimc.c | 5 +-
> drivers/gpu/drm/exynos/exynos_drm_fimd.c | 5 +-
> drivers/gpu/drm/exynos/exynos_drm_g2d.c | 5 +-
> drivers/gpu/drm/exynos/exynos_drm_gsc.c | 5 +-
> drivers/gpu/drm/exynos/exynos_drm_rotator.c | 5 +-
> drivers/gpu/drm/exynos/exynos_drm_scaler.c| 6 +-
> drivers/gpu/drm/exynos/exynos_mixer.c | 7 +--
> 11 files changed, 29 insertions(+), 86 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> index 1f79bc2a881e..8428ae12dfa5 100644
> --- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> +++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
> @@ -55,7 +55,6 @@ static const char * const decon_clks_name[] = {
> struct decon_context {
> struct device *dev;
> struct drm_device *drm_dev;
> - void*dma_priv;
> struct exynos_drm_crtc *crtc;
> struct exynos_drm_plane planes[WINDOWS_NR];
> struct exynos_drm_plane_config configs[WINDOWS_NR];
> @@ -645,7 +644,7 @@ static int decon_bind(struct device *dev, struct device
> *master, void *data)
>
> decon_clear_channels(ctx->crtc);
>
> - return exynos_drm_register_dma(drm_dev, dev, >dma_priv);
> + return exynos_drm_register_dma(drm_dev, dev);
> }
>
> static void decon_unbind(struct device *dev, struct device *master, void
> *data)
> @@ -655,7 +654,7 @@ static void decon_unbind(struct device *dev, struct
> device *master, void *data)
> decon_atomic_disable(ctx->crtc);
>
> /* detach this sub driver from iommu mapping if supported. */
> - exynos_drm_unregister_dma(ctx->drm_dev, ctx->dev, >dma_priv);
> + exynos_drm_unregister_dma(ctx->drm_dev, ctx->dev);
> }
>
> static const struct component_ops decon_component_ops = {
> diff --git a/drivers/gpu/drm/exynos/exynos7_drm_decon.c
> b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
> index f2d87a7445c7..e7b58097ccdc 100644
> --- a/drivers/gpu/drm/exynos/exynos7_drm_decon.c
> +++ b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
> @@ -40,7 +40,6 @@
> struct decon_context {
> struct device *dev;
> struct drm_device *drm_dev;
> - void*dma_priv;
> struct exynos_drm_crtc *crtc;
> struct exynos_drm_plane planes[WINDOWS_NR];
> struct exynos_drm_plane_config configs[WINDOWS_NR];
> @@ -128,13 +127,13 @@ static int decon_ctx_initialize(struct decon_context
> *ctx,
>
> decon_clear_channels(ctx->crtc);
>
> - return exynos_drm_register_dma(drm_dev, ctx->dev, >dma_priv);
> + return exynos_drm_register_dma(drm_dev, ctx->dev);
> }
>
> static void decon_ctx_remove(struct decon_context *ctx)
> {
> /* detach this sub driver from iommu mapping if supported. */
> - exynos_drm_unregister_dma(ctx->drm_dev, ctx->dev, >dma_priv);
> + exynos_drm_unregister_dma(ctx->drm_dev, ctx->dev);
> }
>
> static u32 decon_calc_clkdiv(struct decon_context *ctx,
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_dma.c
> b/drivers/gpu/drm/exynos/exynos_drm_dma.c
> index 58b89ec11b0e..fd5f9bcf1857 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_dma.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_dma.c
> @@ -14,19 +14,6 @@
>
> #include "exynos_drm_drv.h"
>
> -#if defined(CONFIG_ARM_DMA_USE_IOMMU)
> -#include
> -#else
> -#define arm_iommu_create_mapping(...)({ NULL; })
> -#define arm_iommu_attach_device(...) ({ -ENODEV; })
> -#define arm_iommu_release_mapping(...) ({ })
> -#define arm_iommu_detach_device(...) ({ })
> -#define to_dma_iommu_mapping(dev) NULL
> -#endif
> -
> -#if !defined(CONFIG_IOMMU_DMA)
> -#define iommu_dma_init_domain(...) ({ -EINVAL; })
> -#endif
>
> #define EXYNOS_DEV_ADDR_START0x2000
> #define EXYNOS_DEV_ADDR_SIZE 0x4000
> @@ -58,7 +45,7 @@ static inline void clear_dma_max_seg_size(struct device
> *dev)
> * mapping.
> */
> static int drm_iommu_attach_device(struct drm_device *drm_dev,
> - struct device *subdrv_dev, void **dma_priv)
> +
