From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Mon, 6 Jul 2020 22:30:13 +0000 Subject: [PATCH] drm: drm_fourcc: add NV20 and NV30 YUV formats DRM_FORMAT_NV20 and DRM_FORMAT_NV30 formats is the 2x1 and non-subsampled variant of NV15, a 10-bit 2-plane YUV format that has no padding between components. Instead, luminance and chrominance samples are grouped into 4s so that each group is packed into an integer number of bytes: YYYY = UVUV = 4 * 10 bits = 40 bits = 5 bytes The '20' and '30' suffix refers to the optimum effective bits per pixel which is achieved when the total number of luminance samples is a multiple of 4. V2: Added NV30 format Signed-off-by: Jonas Karlman Reviewed-by: Sandy Huang --- drivers/gpu/drm/drm_fourcc.c | 8 ++++++++ include/uapi/drm/drm_fourcc.h | 2 ++ 2 files changed, 10 insertions(+) diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c index eda832f9200d..9498e9d466fb 100644 --- a/drivers/gpu/drm/drm_fourcc.c +++ b/drivers/gpu/drm/drm_fourcc.c @@ -258,6 +258,14 @@ const struct drm_format_info *__drm_format_info(u32 format) .num_planes = 2, .char_per_block = { 5, 5, 0 }, .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true }, + { .format = DRM_FORMAT_NV20, .depth = 0, + .num_planes = 2, .char_per_block = { 5, 5, 0 }, + .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 2, + .vsub = 1, .is_yuv = true }, + { .format = DRM_FORMAT_NV30, .depth = 0, + .num_planes = 2, .char_per_block = { 5, 5, 0 }, + .block_w = { 4, 2, 0 }, .block_h = { 1, 1, 0 }, .hsub = 1, + .vsub = 1, .is_yuv = true }, { .format = DRM_FORMAT_Q410, .depth = 0, .num_planes = 3, .char_per_block = { 2, 2, 2 }, .block_w = { 1, 1, 1 }, .block_h = { 1, 1, 1 }, .hsub = 0, diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index f7156322aba5..a30bb7ef7632 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -279,6 +279,8 @@ extern "C" { * index 1 = Cr:Cb plane, [39:0] Cr1:Cb1:Cr0:Cb0 little endian */ #define DRM_FORMAT_NV15 fourcc_code('N', 'V', '1', '5') /* 2x2 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV20 fourcc_code('N', 'V', '2', '0') /* 2x1 subsampled Cr:Cb plane */ +#define DRM_FORMAT_NV30 fourcc_code('N', 'V', '3', '0') /* non-subsampled Cr:Cb plane */ /* * 2 plane YCbCr MSB aligned From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Mon, 6 Jul 2020 22:30:13 +0000 Subject: [PATCH] drm: rockchip: add NV15, NV20 and NV30 support Add support for displaying 10-bit 4:2:0 and 4:2:2 formats produced by the Rockchip Video Decoder on RK322X, RK3288, RK3328, RK3368 and RK3399. Also add support for 10-bit 4:4:4 format while at it. V2: Added NV30 support Signed-off-by: Jonas Karlman Reviewed-by: Sandy Huang --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 29 +++++++++++++++++-- drivers/gpu/drm/rockchip/rockchip_drm_vop.h | 1 + drivers/gpu/drm/rockchip/rockchip_vop_reg.c | 32 +++++++++++++++++---- 3 files changed, 54 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index f5b9028a16a3..9df4a271f3aa 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -262,6 +262,18 @@ static bool has_rb_swapped(uint32_t format) } } +static bool is_fmt_10(uint32_t format) +{ + switch (format) { + case DRM_FORMAT_NV15: + case DRM_FORMAT_NV20: + case DRM_FORMAT_NV30: + return true; + default: + return false; + } +} + static enum vop_data_format vop_convert_format(uint32_t format) { switch (format) { @@ -277,10 +289,13 @@ static enum vop_data_format vop_convert_format(uint32_t format) case DRM_FORMAT_BGR565: return VOP_FMT_RGB565; case DRM_FORMAT_NV12: + case DRM_FORMAT_NV15: return VOP_FMT_YUV420SP; case DRM_FORMAT_NV16: + case DRM_FORMAT_NV20: return VOP_FMT_YUV422SP; case DRM_FORMAT_NV24: + case DRM_FORMAT_NV30: return VOP_FMT_YUV444SP; default: DRM_ERROR("unsupported format[%08x]\n", format); @@ -931,7 +946,12 @@ static void vop_plane_atomic_update(struct drm_plane *plane, dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start; dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff); - offset = (src->x1 >> 16) * fb->format->cpp[0]; + if (fb->format->block_w[0]) + offset = (src->x1 >> 16) * fb->format->char_per_block[0] / + fb->format->block_w[0]; + else + offset = (src->x1 >> 16) * fb->format->cpp[0]; + offset += (src->y1 >> 16) * fb->pitches[0]; dma_addr = rk_obj->dma_addr + offset + fb->offsets[0]; @@ -957,6 +977,7 @@ static void vop_plane_atomic_update(struct drm_plane *plane, } VOP_WIN_SET(vop, win, format, format); + VOP_WIN_SET(vop, win, fmt_10, is_fmt_10(fb->format->format)); VOP_WIN_SET(vop, win, yrgb_vir, DIV_ROUND_UP(fb->pitches[0], 4)); VOP_WIN_SET(vop, win, yrgb_mst, dma_addr); VOP_WIN_YUV2YUV_SET(vop, win_yuv2yuv, y2r_en, is_yuv); @@ -973,7 +994,11 @@ static void vop_plane_atomic_update(struct drm_plane *plane, uv_obj = fb->obj[1]; rk_uv_obj = to_rockchip_obj(uv_obj); - offset = (src->x1 >> 16) * bpp / hsub; + if (fb->format->block_w[1]) + offset = (src->x1 >> 16) * bpp / + fb->format->block_w[1] / hsub; + else + offset = (src->x1 >> 16) * bpp / hsub; offset += (src->y1 >> 16) * fb->pitches[1] / vsub; dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1]; diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index 857d97cdc67c..b7169010622a 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h @@ -165,6 +165,7 @@ struct vop_win_phy { struct vop_reg enable; struct vop_reg gate; struct vop_reg format; + struct vop_reg fmt_10; struct vop_reg rb_swap; struct vop_reg act_info; struct vop_reg dsp_info; diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index ca7cc82125cb..fff9c3387b9d 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -50,6 +50,23 @@ static const uint32_t formats_win_full[] = { DRM_FORMAT_NV24, }; +static const uint32_t formats_win_full_10[] = { + DRM_FORMAT_XRGB8888, + DRM_FORMAT_ARGB8888, + DRM_FORMAT_XBGR8888, + DRM_FORMAT_ABGR8888, + DRM_FORMAT_RGB888, + DRM_FORMAT_BGR888, + DRM_FORMAT_RGB565, + DRM_FORMAT_BGR565, + DRM_FORMAT_NV12, + DRM_FORMAT_NV16, + DRM_FORMAT_NV24, + DRM_FORMAT_NV15, + DRM_FORMAT_NV20, + DRM_FORMAT_NV30, +}; + static const uint64_t format_modifiers_win_full[] = { DRM_FORMAT_MOD_LINEAR, DRM_FORMAT_MOD_INVALID, @@ -613,11 +630,12 @@ static const struct vop_scl_regs rk3288_win_full_scl = { static const struct vop_win_phy rk3288_win01_data = { .scl = &rk3288_win_full_scl, - .data_formats = formats_win_full, - .nformats = ARRAY_SIZE(formats_win_full), + .data_formats = formats_win_full_10, + .nformats = ARRAY_SIZE(formats_win_full_10), .format_modifiers = format_modifiers_win_full, .enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0), .format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1), + .fmt_10 = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 4), .rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12), .act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0), .dsp_info = VOP_REG(RK3288_WIN0_DSP_INFO, 0x0fff0fff, 0), @@ -747,11 +765,12 @@ static const struct vop_intr rk3368_vop_intr = { static const struct vop_win_phy rk3368_win01_data = { .scl = &rk3288_win_full_scl, - .data_formats = formats_win_full, - .nformats = ARRAY_SIZE(formats_win_full), + .data_formats = formats_win_full_10, + .nformats = ARRAY_SIZE(formats_win_full_10), .format_modifiers = format_modifiers_win_full, .enable = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 0), .format = VOP_REG(RK3368_WIN0_CTRL0, 0x7, 1), + .fmt_10 = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 4), .rb_swap = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 12), .x_mir_en = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 21), .y_mir_en = VOP_REG(RK3368_WIN0_CTRL0, 0x1, 22), @@ -896,11 +915,12 @@ static const struct vop_win_yuv2yuv_data rk3399_vop_big_win_yuv2yuv_data[] = { static const struct vop_win_phy rk3399_win01_data = { .scl = &rk3288_win_full_scl, - .data_formats = formats_win_full, - .nformats = ARRAY_SIZE(formats_win_full), + .data_formats = formats_win_full_10, + .nformats = ARRAY_SIZE(formats_win_full_10), .format_modifiers = format_modifiers_win_full_afbc, .enable = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 0), .format = VOP_REG(RK3288_WIN0_CTRL0, 0x7, 1), + .fmt_10 = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 4), .rb_swap = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 12), .y_mir_en = VOP_REG(RK3288_WIN0_CTRL0, 0x1, 22), .act_info = VOP_REG(RK3288_WIN0_ACT_INFO, 0x1fff1fff, 0), From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Qinglang Miao Date: Tue, 1 Dec 2020 20:54:57 +0800 Subject: [PATCH] drm/rockchip: cdn-dp: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in cdn_dp_clk_enable. However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: efe0220fc2d2 ("drm/rockchip: cdn-dp: Fix error handling") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao --- drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c index 8ab3247dbc4a..8429c6706ec5 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -100,7 +100,7 @@ static int cdn_dp_clk_enable(struct cdn_dp_device *dp) goto err_core_clk; } - ret = pm_runtime_get_sync(dp->dev); + ret = pm_runtime_resume_and_get(dp->dev); if (ret < 0) { DRM_DEV_ERROR(dp->dev, "cannot get pm runtime %d\n", ret); goto err_pm_runtime_get; From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Qinglang Miao Date: Tue, 1 Dec 2020 20:54:58 +0800 Subject: [PATCH] drm/rockchip: vop: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in functions vop_enable and vop_enable. However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: 5e570373c015 ("drm/rockchip: vop: Enable pm domain before vop_initial") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 9df4a271f3aa..c3c0de25b8e6 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -603,7 +603,7 @@ static int vop_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) struct vop *vop = to_vop(crtc); int ret, i; - ret = pm_runtime_get_sync(vop->dev); + ret = pm_runtime_resume_and_get(vop->dev); if (ret < 0) { DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret); return ret; @@ -1956,7 +1956,7 @@ static int vop_initial(struct vop *vop) return PTR_ERR(vop->dclk); } - ret = pm_runtime_get_sync(vop->dev); + ret = pm_runtime_resume_and_get(vop->dev); if (ret < 0) { DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret); return ret; From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Qinglang Miao Date: Tue, 1 Dec 2020 20:54:59 +0800 Subject: [PATCH] drm/rockchip: lvds: fix reference leak when pm_runtime_get_sync fails The PM reference count is not expected to be incremented on return in functions rk3288_lvds_poweron and px30_lvds_poweron. However, pm_runtime_get_sync will increment the PM reference count even failed. Forgetting to putting operation will result in a reference leak here. Replace it with pm_runtime_resume_and_get to keep usage counter balanced. Fixes: cca1705c3d89 ("drm/rockchip: lvds: Add PX30 support") Reported-by: Hulk Robot Signed-off-by: Qinglang Miao --- drivers/gpu/drm/rockchip/rockchip_lvds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c index 489d63c05c0d..aaf0b6bbcb85 100644 --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -145,7 +145,7 @@ static int rk3288_lvds_poweron(struct rockchip_lvds *lvds) DRM_DEV_ERROR(lvds->dev, "failed to enable lvds pclk %d\n", ret); return ret; } - ret = pm_runtime_get_sync(lvds->dev); + ret = pm_runtime_resume_and_get(lvds->dev); if (ret < 0) { DRM_DEV_ERROR(lvds->dev, "failed to get pm runtime: %d\n", ret); clk_disable(lvds->pclk); @@ -329,7 +329,7 @@ static int px30_lvds_poweron(struct rockchip_lvds *lvds) { int ret; - ret = pm_runtime_get_sync(lvds->dev); + ret = pm_runtime_resume_and_get(lvds->dev); if (ret < 0) { DRM_DEV_ERROR(lvds->dev, "failed to get pm runtime: %d\n", ret); return ret; From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Thu, 24 Jun 2021 11:55:02 +0200 Subject: [PATCH] drm/rockchip: Implement mmap as GEM object function Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective rockchip functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann Tested-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 13 +----- drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 3 +- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 44 +++++-------------- drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 7 --- 4 files changed, 15 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index b730b8d5d949..2e3ab573a817 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -208,16 +208,7 @@ static void rockchip_drm_unbind(struct device *dev) drm_dev_put(drm_dev); } -static const struct file_operations rockchip_drm_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .mmap = rockchip_gem_mmap, - .poll = drm_poll, - .read = drm_read, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .release = drm_release, -}; +DEFINE_DRM_GEM_FOPS(rockchip_drm_driver_fops); static const struct drm_driver rockchip_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, @@ -226,7 +217,7 @@ static const struct drm_driver rockchip_drm_driver = { .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = rockchip_gem_prime_import_sg_table, - .gem_prime_mmap = rockchip_gem_mmap_buf, + .gem_prime_mmap = drm_gem_prime_mmap, .fops = &rockchip_drm_driver_fops, .name = DRIVER_NAME, .desc = DRIVER_DESC, diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c index 2fdc455c4ad7..d8418dd39d0e 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include "rockchip_drm_drv.h" @@ -24,7 +25,7 @@ static int rockchip_fbdev_mmap(struct fb_info *info, struct drm_fb_helper *helper = info->par; struct rockchip_drm_private *private = to_drm_private(helper); - return rockchip_gem_mmap_buf(private->fbdev_bo, vma); + return drm_gem_prime_mmap(private->fbdev_bo, vma); } static const struct fb_ops rockchip_drm_fbdev_ops = { diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 7971f57436dd..63eb73b624aa 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -240,12 +240,22 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj, int ret; struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + /* + * Set vm_pgoff (used as a fake buffer offset by DRM) to 0 and map the + * whole buffer from the start. + */ + vma->vm_pgoff = 0; + /* * We allocated a struct page table for rk_obj, so clear * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap(). */ + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; vma->vm_flags &= ~VM_PFNMAP; + vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); + vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); + if (rk_obj->pages) ret = rockchip_drm_gem_object_mmap_iommu(obj, vma); else @@ -257,39 +267,6 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj, return ret; } -int rockchip_gem_mmap_buf(struct drm_gem_object *obj, - struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap_obj(obj, obj->size, vma); - if (ret) - return ret; - - return rockchip_drm_gem_object_mmap(obj, vma); -} - -/* drm driver mmap file operations */ -int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_gem_object *obj; - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - /* - * Set vm_pgoff (used as a fake buffer offset by DRM) to 0 and map the - * whole buffer from the start. - */ - vma->vm_pgoff = 0; - - obj = vma->vm_private_data; - - return rockchip_drm_gem_object_mmap(obj, vma); -} - static void rockchip_gem_release_object(struct rockchip_gem_object *rk_obj) { drm_gem_object_release(&rk_obj->base); @@ -301,6 +278,7 @@ static const struct drm_gem_object_funcs rockchip_gem_object_funcs = { .get_sg_table = rockchip_gem_prime_get_sg_table, .vmap = rockchip_gem_prime_vmap, .vunmap = rockchip_gem_prime_vunmap, + .mmap = rockchip_drm_gem_object_mmap, .vm_ops = &drm_gem_cma_vm_ops, }; diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h index 5a70a56cd406..47c1861eece0 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h @@ -34,13 +34,6 @@ rockchip_gem_prime_import_sg_table(struct drm_device *dev, int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); -/* drm driver mmap file operations */ -int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma); - -/* mmap a gem object to userspace. */ -int rockchip_gem_mmap_buf(struct drm_gem_object *obj, - struct vm_area_struct *vma); - struct rockchip_gem_object * rockchip_gem_create_object(struct drm_device *drm, unsigned int size, bool alloc_kmap);