Add a resource-private header for common resource definitions
Signed-off-by: Thomas Hellstrom thellstrom@vmware.com Reviewed-by: Brian Paul brianp@vmware.com Reviewed-by: Dmitry Torokhov dtor@vmware.com --- drivers/gpu/drm/vmwgfx/Makefile | 3 +- drivers/gpu/drm/vmwgfx/vmwgfx_context.c | 274 ++++++ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 1244 +------------------------ drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h | 84 ++ drivers/gpu/drm/vmwgfx/vmwgfx_surface.c | 969 +++++++++++++++++++ 5 files changed, 1338 insertions(+), 1236 deletions(-) create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_context.c create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index 586869c..2cc6cd9 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -5,6 +5,7 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \ vmwgfx_fb.o vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_buffer.o \ vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \ vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o \ - vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o + vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o vmwgfx_context.o \ + vmwgfx_surface.o
obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_context.c b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c new file mode 100644 index 0000000..00ae092 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_context.c @@ -0,0 +1,274 @@ +/************************************************************************** + * + * Copyright © 2009-2012 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "vmwgfx_drv.h" +#include "vmwgfx_resource_priv.h" +#include "ttm/ttm_placement.h" + +struct vmw_user_context { + struct ttm_base_object base; + struct vmw_resource res; +}; + +static void vmw_user_context_free(struct vmw_resource *res); +static struct vmw_resource * +vmw_user_context_base_to_res(struct ttm_base_object *base); + +static uint64_t vmw_user_context_size; + +static const struct vmw_user_resource_conv user_context_conv = { + .object_type = VMW_RES_CONTEXT, + .base_obj_to_res = vmw_user_context_base_to_res, + .res_free = vmw_user_context_free +}; + +const struct vmw_user_resource_conv *user_context_converter = + &user_context_conv; + + +static const struct vmw_res_func vmw_legacy_context_func = { + .res_type = vmw_res_context, + .needs_backup = false, + .may_evict = false, + .type_name = "legacy contexts", + .backup_placement = NULL, + .create = NULL, + .destroy = NULL, + .bind = NULL, + .unbind = NULL +}; + +/** + * Context management: + */ + +static void vmw_hw_context_destroy(struct vmw_resource *res) +{ + + struct vmw_private *dev_priv = res->dev_priv; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDestroyContext body; + } *cmd; + + + vmw_execbuf_release_pinned_bo(dev_priv); + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for surface " + "destruction.\n"); + return; + } + + cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY); + cmd->header.size = cpu_to_le32(sizeof(cmd->body)); + cmd->body.cid = cpu_to_le32(res->id); + + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + vmw_3d_resource_dec(dev_priv, false); +} + +static int vmw_context_init(struct vmw_private *dev_priv, + struct vmw_resource *res, + void (*res_free) (struct vmw_resource *res)) +{ + int ret; + + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineContext body; + } *cmd; + + ret = vmw_resource_init(dev_priv, res, false, + res_free, &vmw_legacy_context_func); + + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate a resource id.\n"); + goto out_early; + } + + if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) { + DRM_ERROR("Out of hw context ids.\n"); + vmw_resource_unreference(&res); + return -ENOMEM; + } + + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Fifo reserve failed.\n"); + vmw_resource_unreference(&res); + return -ENOMEM; + } + + cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE); + cmd->header.size = cpu_to_le32(sizeof(cmd->body)); + cmd->body.cid = cpu_to_le32(res->id); + + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + (void) vmw_3d_resource_inc(dev_priv, false); + vmw_resource_activate(res, vmw_hw_context_destroy); + return 0; + +out_early: + if (res_free == NULL) + kfree(res); + else + res_free(res); + return ret; +} + +struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv) +{ + struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL); + int ret; + + if (unlikely(res == NULL)) + return NULL; + + ret = vmw_context_init(dev_priv, res, NULL); + + return (ret == 0) ? res : NULL; +} + +/** + * User-space context management: + */ + +static struct vmw_resource * +vmw_user_context_base_to_res(struct ttm_base_object *base) +{ + return &(container_of(base, struct vmw_user_context, base)->res); +} + +static void vmw_user_context_free(struct vmw_resource *res) +{ + struct vmw_user_context *ctx = + container_of(res, struct vmw_user_context, res); + struct vmw_private *dev_priv = res->dev_priv; + + ttm_base_object_kfree(ctx, base); + ttm_mem_global_free(vmw_mem_glob(dev_priv), + vmw_user_context_size); +} + +/** + * This function is called when user space has no more references on the + * base object. It releases the base-object's reference on the resource object. + */ + +static void vmw_user_context_base_release(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct vmw_user_context *ctx = + container_of(base, struct vmw_user_context, base); + struct vmw_resource *res = &ctx->res; + + *p_base = NULL; + vmw_resource_unreference(&res); +} + +int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE); +} + +int vmw_context_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_user_context *ctx; + struct vmw_resource *res; + struct vmw_resource *tmp; + struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_master *vmaster = vmw_master(file_priv->master); + int ret; + + + /* + * Approximate idr memory usage with 128 bytes. It will be limited + * by maximum number_of contexts anyway. + */ + + if (unlikely(vmw_user_context_size == 0)) + vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; + + ret = ttm_read_lock(&vmaster->lock, true); + if (unlikely(ret != 0)) + return ret; + + ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), + vmw_user_context_size, + false, true); + if (unlikely(ret != 0)) { + if (ret != -ERESTARTSYS) + DRM_ERROR("Out of graphics memory for context" + " creation.\n"); + goto out_unlock; + } + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (unlikely(ctx == NULL)) { + ttm_mem_global_free(vmw_mem_glob(dev_priv), + vmw_user_context_size); + ret = -ENOMEM; + goto out_unlock; + } + + res = &ctx->res; + ctx->base.shareable = false; + ctx->base.tfile = NULL; + + /* + * From here on, the destructor takes over resource freeing. + */ + + ret = vmw_context_init(dev_priv, res, vmw_user_context_free); + if (unlikely(ret != 0)) + goto out_unlock; + + tmp = vmw_resource_reference(&ctx->res); + ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, + &vmw_user_context_base_release, NULL); + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&tmp); + goto out_err; + } + + arg->cid = ctx->base.hash.key; +out_err: + vmw_resource_unreference(&res); +out_unlock: + ttm_read_unlock(&vmaster->lock); + return ret; + +} diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 06e2135..b7d679d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -30,49 +30,7 @@ #include <drm/ttm/ttm_object.h> #include <drm/ttm/ttm_placement.h> #include <drm/drmP.h> - -/** - * struct vmw_user_resource_conv - Identify a derived user-exported resource - * type and provide a function to convert its ttm_base_object pointer to - * a struct vmw_resource - */ -struct vmw_user_resource_conv { - enum ttm_object_type object_type; - struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base); - void (*res_free) (struct vmw_resource *res); -}; - -/** - * struct vmw_res_func - members and functions common for a resource type - * - * @res_type: Enum that identifies the lru list to use for eviction. - * @needs_backup: Whether the resource is guest-backed and needs - * persistent buffer storage. - * @type_name: String that identifies the resource type. - * @backup_placement: TTM placement for backup buffers. - * @may_evict Whether the resource may be evicted. - * @create: Create a hardware resource. - * @destroy: Destroy a hardware resource. - * @bind: Bind a hardware resource to persistent buffer storage. - * @unbind: Unbind a hardware resource from persistent - * buffer storage. - */ - -struct vmw_res_func { - enum vmw_res_type res_type; - bool needs_backup; - const char *type_name; - struct ttm_placement *backup_placement; - bool may_evict; - - int (*create) (struct vmw_resource *res); - int (*destroy) (struct vmw_resource *res); - int (*bind) (struct vmw_resource *res, - struct ttm_validate_buffer *val_buf); - int (*unbind) (struct vmw_resource *res, - bool readback, - struct ttm_validate_buffer *val_buf); -}; +#include "vmwgfx_resource_priv.h"
struct vmw_user_dma_buffer { struct ttm_base_object base; @@ -109,104 +67,6 @@ static const struct vmw_res_func vmw_stream_func = { .unbind = NULL };
-struct vmw_user_context { - struct ttm_base_object base; - struct vmw_resource res; -}; - -static void vmw_user_context_free(struct vmw_resource *res); -static struct vmw_resource * -vmw_user_context_base_to_res(struct ttm_base_object *base); - -static uint64_t vmw_user_context_size; - -static const struct vmw_user_resource_conv user_context_conv = { - .object_type = VMW_RES_CONTEXT, - .base_obj_to_res = vmw_user_context_base_to_res, - .res_free = vmw_user_context_free -}; - -const struct vmw_user_resource_conv *user_context_converter = - &user_context_conv; - - -static const struct vmw_res_func vmw_legacy_context_func = { - .res_type = vmw_res_context, - .needs_backup = false, - .may_evict = false, - .type_name = "legacy contexts", - .backup_placement = NULL, - .create = NULL, - .destroy = NULL, - .bind = NULL, - .unbind = NULL -}; - - -/** - * struct vmw_user_surface - User-space visible surface resource - * - * @base: The TTM base object handling user-space visibility. - * @srf: The surface metadata. - * @size: TTM accounting size for the surface. - */ -struct vmw_user_surface { - struct ttm_base_object base; - struct vmw_surface srf; - uint32_t size; - uint32_t backup_handle; -}; - -/** - * struct vmw_surface_offset - Backing store mip level offset info - * - * @face: Surface face. - * @mip: Mip level. - * @bo_offset: Offset into backing store of this mip level. - * - */ -struct vmw_surface_offset { - uint32_t face; - uint32_t mip; - uint32_t bo_offset; -}; - -static void vmw_user_surface_free(struct vmw_resource *res); -static struct vmw_resource * -vmw_user_surface_base_to_res(struct ttm_base_object *base); -static int vmw_legacy_srf_bind(struct vmw_resource *res, - struct ttm_validate_buffer *val_buf); -static int vmw_legacy_srf_unbind(struct vmw_resource *res, - bool readback, - struct ttm_validate_buffer *val_buf); -static int vmw_legacy_srf_create(struct vmw_resource *res); -static int vmw_legacy_srf_destroy(struct vmw_resource *res); - -static const struct vmw_user_resource_conv user_surface_conv = { - .object_type = VMW_RES_SURFACE, - .base_obj_to_res = vmw_user_surface_base_to_res, - .res_free = vmw_user_surface_free -}; - -const struct vmw_user_resource_conv *user_surface_converter = - &user_surface_conv; - - -static uint64_t vmw_user_surface_size; - -static const struct vmw_res_func vmw_legacy_surface_func = { - .res_type = vmw_res_surface, - .needs_backup = false, - .may_evict = true, - .type_name = "legacy surfaces", - .backup_placement = &vmw_srf_placement, - .create = &vmw_legacy_srf_create, - .destroy = &vmw_legacy_srf_destroy, - .bind = &vmw_legacy_srf_bind, - .unbind = &vmw_legacy_srf_unbind -}; - - static inline struct vmw_dma_buffer * vmw_dma_buffer(struct ttm_buffer_object *bo) { @@ -234,7 +94,7 @@ struct vmw_resource *vmw_resource_reference(struct vmw_resource *res) * * Release the resource id to the resource id manager and set it to -1 */ -static void vmw_resource_release_id(struct vmw_resource *res) +void vmw_resource_release_id(struct vmw_resource *res) { struct vmw_private *dev_priv = res->dev_priv; struct idr *idr = &dev_priv->res_idr[res->func->res_type]; @@ -312,7 +172,7 @@ void vmw_resource_unreference(struct vmw_resource **p_res) * Allocate the lowest free resource from the resource manager, and set * @res->id to that id. Returns 0 on success and -ENOMEM on failure. */ -static int vmw_resource_alloc_id(struct vmw_resource *res) +int vmw_resource_alloc_id(struct vmw_resource *res) { struct vmw_private *dev_priv = res->dev_priv; int ret; @@ -344,11 +204,10 @@ static int vmw_resource_alloc_id(struct vmw_resource *res) * @res_free: Resource destructor. * @func: Resource function table. */ -static int vmw_resource_init(struct vmw_private *dev_priv, - struct vmw_resource *res, - bool delay_id, - void (*res_free) (struct vmw_resource *res), - const struct vmw_res_func *func) +int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, + bool delay_id, + void (*res_free) (struct vmw_resource *res), + const struct vmw_res_func *func) { kref_init(&res->kref); res->hw_destroy = NULL; @@ -381,8 +240,8 @@ static int vmw_resource_init(struct vmw_private *dev_priv, * Activate basically means that the function vmw_resource_lookup will * find it. */ -static void vmw_resource_activate(struct vmw_resource *res, - void (*hw_destroy) (struct vmw_resource *)) +void vmw_resource_activate(struct vmw_resource *res, + void (*hw_destroy) (struct vmw_resource *)) { struct vmw_private *dev_priv = res->dev_priv;
@@ -412,1091 +271,6 @@ struct vmw_resource *vmw_resource_lookup(struct vmw_private *dev_priv, }
/** - * Context management: - */ - -static void vmw_hw_context_destroy(struct vmw_resource *res) -{ - - struct vmw_private *dev_priv = res->dev_priv; - struct { - SVGA3dCmdHeader header; - SVGA3dCmdDestroyContext body; - } *cmd; - - - vmw_execbuf_release_pinned_bo(dev_priv); - cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Failed reserving FIFO space for surface " - "destruction.\n"); - return; - } - - cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY); - cmd->header.size = cpu_to_le32(sizeof(cmd->body)); - cmd->body.cid = cpu_to_le32(res->id); - - vmw_fifo_commit(dev_priv, sizeof(*cmd)); - vmw_3d_resource_dec(dev_priv, false); -} - -static int vmw_context_init(struct vmw_private *dev_priv, - struct vmw_resource *res, - void (*res_free) (struct vmw_resource *res)) -{ - int ret; - - struct { - SVGA3dCmdHeader header; - SVGA3dCmdDefineContext body; - } *cmd; - - ret = vmw_resource_init(dev_priv, res, false, - res_free, &vmw_legacy_context_func); - - if (unlikely(ret != 0)) { - DRM_ERROR("Failed to allocate a resource id.\n"); - goto out_early; - } - - if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) { - DRM_ERROR("Out of hw context ids.\n"); - vmw_resource_unreference(&res); - return -ENOMEM; - } - - cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Fifo reserve failed.\n"); - vmw_resource_unreference(&res); - return -ENOMEM; - } - - cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE); - cmd->header.size = cpu_to_le32(sizeof(cmd->body)); - cmd->body.cid = cpu_to_le32(res->id); - - vmw_fifo_commit(dev_priv, sizeof(*cmd)); - (void) vmw_3d_resource_inc(dev_priv, false); - vmw_resource_activate(res, vmw_hw_context_destroy); - return 0; - -out_early: - if (res_free == NULL) - kfree(res); - else - res_free(res); - return ret; -} - -struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv) -{ - struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL); - int ret; - - if (unlikely(res == NULL)) - return NULL; - - ret = vmw_context_init(dev_priv, res, NULL); - - return (ret == 0) ? res : NULL; -} - -/** - * User-space context management: - */ - -static struct vmw_resource * -vmw_user_context_base_to_res(struct ttm_base_object *base) -{ - return &(container_of(base, struct vmw_user_context, base)->res); -} - -static void vmw_user_context_free(struct vmw_resource *res) -{ - struct vmw_user_context *ctx = - container_of(res, struct vmw_user_context, res); - struct vmw_private *dev_priv = res->dev_priv; - - ttm_base_object_kfree(ctx, base); - ttm_mem_global_free(vmw_mem_glob(dev_priv), - vmw_user_context_size); -} - -/** - * This function is called when user space has no more references on the - * base object. It releases the base-object's reference on the resource object. - */ - -static void vmw_user_context_base_release(struct ttm_base_object **p_base) -{ - struct ttm_base_object *base = *p_base; - struct vmw_user_context *ctx = - container_of(base, struct vmw_user_context, base); - struct vmw_resource *res = &ctx->res; - - *p_base = NULL; - vmw_resource_unreference(&res); -} - -int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; - struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - - return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE); -} - -int vmw_context_define_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct vmw_private *dev_priv = vmw_priv(dev); - struct vmw_user_context *ctx; - struct vmw_resource *res; - struct vmw_resource *tmp; - struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; - struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct vmw_master *vmaster = vmw_master(file_priv->master); - int ret; - - - /* - * Approximate idr memory usage with 128 bytes. It will be limited - * by maximum number_of contexts anyway. - */ - - if (unlikely(vmw_user_context_size == 0)) - vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; - - ret = ttm_read_lock(&vmaster->lock, true); - if (unlikely(ret != 0)) - return ret; - - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), - vmw_user_context_size, - false, true); - if (unlikely(ret != 0)) { - if (ret != -ERESTARTSYS) - DRM_ERROR("Out of graphics memory for context" - " creation.\n"); - goto out_unlock; - } - - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (unlikely(ctx == NULL)) { - ttm_mem_global_free(vmw_mem_glob(dev_priv), - vmw_user_context_size); - ret = -ENOMEM; - goto out_unlock; - } - - res = &ctx->res; - ctx->base.shareable = false; - ctx->base.tfile = NULL; - - /* - * From here on, the destructor takes over resource freeing. - */ - - ret = vmw_context_init(dev_priv, res, vmw_user_context_free); - if (unlikely(ret != 0)) - goto out_unlock; - - tmp = vmw_resource_reference(&ctx->res); - ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, - &vmw_user_context_base_release, NULL); - - if (unlikely(ret != 0)) { - vmw_resource_unreference(&tmp); - goto out_err; - } - - arg->cid = ctx->base.hash.key; -out_err: - vmw_resource_unreference(&res); -out_unlock: - ttm_read_unlock(&vmaster->lock); - return ret; - -} - -/** - * struct vmw_bpp - Bits per pixel info for surface storage size computation. - * - * @bpp: Bits per pixel. - * @s_bpp: Stride bits per pixel. See definition below. - * - */ -struct vmw_bpp { - uint8_t bpp; - uint8_t s_bpp; -}; - -/* - * Size table for the supported SVGA3D surface formats. It consists of - * two values. The bpp value and the s_bpp value which is short for - * "stride bits per pixel" The values are given in such a way that the - * minimum stride for the image is calculated using - * - * min_stride = w*s_bpp - * - * and the total memory requirement for the image is - * - * h*min_stride*bpp/s_bpp - * - */ -static const struct vmw_bpp vmw_sf_bpp[] = { - [SVGA3D_FORMAT_INVALID] = {0, 0}, - [SVGA3D_X8R8G8B8] = {32, 32}, - [SVGA3D_A8R8G8B8] = {32, 32}, - [SVGA3D_R5G6B5] = {16, 16}, - [SVGA3D_X1R5G5B5] = {16, 16}, - [SVGA3D_A1R5G5B5] = {16, 16}, - [SVGA3D_A4R4G4B4] = {16, 16}, - [SVGA3D_Z_D32] = {32, 32}, - [SVGA3D_Z_D16] = {16, 16}, - [SVGA3D_Z_D24S8] = {32, 32}, - [SVGA3D_Z_D15S1] = {16, 16}, - [SVGA3D_LUMINANCE8] = {8, 8}, - [SVGA3D_LUMINANCE4_ALPHA4] = {8, 8}, - [SVGA3D_LUMINANCE16] = {16, 16}, - [SVGA3D_LUMINANCE8_ALPHA8] = {16, 16}, - [SVGA3D_DXT1] = {4, 16}, - [SVGA3D_DXT2] = {8, 32}, - [SVGA3D_DXT3] = {8, 32}, - [SVGA3D_DXT4] = {8, 32}, - [SVGA3D_DXT5] = {8, 32}, - [SVGA3D_BUMPU8V8] = {16, 16}, - [SVGA3D_BUMPL6V5U5] = {16, 16}, - [SVGA3D_BUMPX8L8V8U8] = {32, 32}, - [SVGA3D_ARGB_S10E5] = {16, 16}, - [SVGA3D_ARGB_S23E8] = {32, 32}, - [SVGA3D_A2R10G10B10] = {32, 32}, - [SVGA3D_V8U8] = {16, 16}, - [SVGA3D_Q8W8V8U8] = {32, 32}, - [SVGA3D_CxV8U8] = {16, 16}, - [SVGA3D_X8L8V8U8] = {32, 32}, - [SVGA3D_A2W10V10U10] = {32, 32}, - [SVGA3D_ALPHA8] = {8, 8}, - [SVGA3D_R_S10E5] = {16, 16}, - [SVGA3D_R_S23E8] = {32, 32}, - [SVGA3D_RG_S10E5] = {16, 16}, - [SVGA3D_RG_S23E8] = {32, 32}, - [SVGA3D_BUFFER] = {8, 8}, - [SVGA3D_Z_D24X8] = {32, 32}, - [SVGA3D_V16U16] = {32, 32}, - [SVGA3D_G16R16] = {32, 32}, - [SVGA3D_A16B16G16R16] = {64, 64}, - [SVGA3D_UYVY] = {12, 12}, - [SVGA3D_YUY2] = {12, 12}, - [SVGA3D_NV12] = {12, 8}, - [SVGA3D_AYUV] = {32, 32}, - [SVGA3D_BC4_UNORM] = {4, 16}, - [SVGA3D_BC5_UNORM] = {8, 32}, - [SVGA3D_Z_DF16] = {16, 16}, - [SVGA3D_Z_DF24] = {24, 24}, - [SVGA3D_Z_D24S8_INT] = {32, 32} -}; - - -/** - * struct vmw_surface_dma - SVGA3D DMA command - */ -struct vmw_surface_dma { - SVGA3dCmdHeader header; - SVGA3dCmdSurfaceDMA body; - SVGA3dCopyBox cb; - SVGA3dCmdSurfaceDMASuffix suffix; -}; - -/** - * struct vmw_surface_define - SVGA3D Surface Define command - */ -struct vmw_surface_define { - SVGA3dCmdHeader header; - SVGA3dCmdDefineSurface body; -}; - -/** - * struct vmw_surface_destroy - SVGA3D Surface Destroy command - */ -struct vmw_surface_destroy { - SVGA3dCmdHeader header; - SVGA3dCmdDestroySurface body; -}; - - -/** - * vmw_surface_dma_size - Compute fifo size for a dma command. - * - * @srf: Pointer to a struct vmw_surface - * - * Computes the required size for a surface dma command for backup or - * restoration of the surface represented by @srf. - */ -static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf) -{ - return srf->num_sizes * sizeof(struct vmw_surface_dma); -} - - -/** - * vmw_surface_define_size - Compute fifo size for a surface define command. - * - * @srf: Pointer to a struct vmw_surface - * - * Computes the required size for a surface define command for the definition - * of the surface represented by @srf. - */ -static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf) -{ - return sizeof(struct vmw_surface_define) + srf->num_sizes * - sizeof(SVGA3dSize); -} - - -/** - * vmw_surface_destroy_size - Compute fifo size for a surface destroy command. - * - * Computes the required size for a surface destroy command for the destruction - * of a hw surface. - */ -static inline uint32_t vmw_surface_destroy_size(void) -{ - return sizeof(struct vmw_surface_destroy); -} - -/** - * vmw_surface_destroy_encode - Encode a surface_destroy command. - * - * @id: The surface id - * @cmd_space: Pointer to memory area in which the commands should be encoded. - */ -static void vmw_surface_destroy_encode(uint32_t id, - void *cmd_space) -{ - struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *) - cmd_space; - - cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY; - cmd->header.size = sizeof(cmd->body); - cmd->body.sid = id; -} - -/** - * vmw_surface_define_encode - Encode a surface_define command. - * - * @srf: Pointer to a struct vmw_surface object. - * @cmd_space: Pointer to memory area in which the commands should be encoded. - */ -static void vmw_surface_define_encode(const struct vmw_surface *srf, - void *cmd_space) -{ - struct vmw_surface_define *cmd = (struct vmw_surface_define *) - cmd_space; - struct drm_vmw_size *src_size; - SVGA3dSize *cmd_size; - uint32_t cmd_len; - int i; - - cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize); - - cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE; - cmd->header.size = cmd_len; - cmd->body.sid = srf->res.id; - cmd->body.surfaceFlags = srf->flags; - cmd->body.format = cpu_to_le32(srf->format); - for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) - cmd->body.face[i].numMipLevels = srf->mip_levels[i]; - - cmd += 1; - cmd_size = (SVGA3dSize *) cmd; - src_size = srf->sizes; - - for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) { - cmd_size->width = src_size->width; - cmd_size->height = src_size->height; - cmd_size->depth = src_size->depth; - } -} - -/** - * vmw_surface_dma_encode - Encode a surface_dma command. - * - * @srf: Pointer to a struct vmw_surface object. - * @cmd_space: Pointer to memory area in which the commands should be encoded. - * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents - * should be placed or read from. - * @to_surface: Boolean whether to DMA to the surface or from the surface. - */ -static void vmw_surface_dma_encode(struct vmw_surface *srf, - void *cmd_space, - const SVGAGuestPtr *ptr, - bool to_surface) -{ - uint32_t i; - uint32_t bpp = vmw_sf_bpp[srf->format].bpp; - uint32_t stride_bpp = vmw_sf_bpp[srf->format].s_bpp; - struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space; - - for (i = 0; i < srf->num_sizes; ++i) { - SVGA3dCmdHeader *header = &cmd->header; - SVGA3dCmdSurfaceDMA *body = &cmd->body; - SVGA3dCopyBox *cb = &cmd->cb; - SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix; - const struct vmw_surface_offset *cur_offset = &srf->offsets[i]; - const struct drm_vmw_size *cur_size = &srf->sizes[i]; - - header->id = SVGA_3D_CMD_SURFACE_DMA; - header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix); - - body->guest.ptr = *ptr; - body->guest.ptr.offset += cur_offset->bo_offset; - body->guest.pitch = (cur_size->width * stride_bpp + 7) >> 3; - body->host.sid = srf->res.id; - body->host.face = cur_offset->face; - body->host.mipmap = cur_offset->mip; - body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM : - SVGA3D_READ_HOST_VRAM); - cb->x = 0; - cb->y = 0; - cb->z = 0; - cb->srcx = 0; - cb->srcy = 0; - cb->srcz = 0; - cb->w = cur_size->width; - cb->h = cur_size->height; - cb->d = cur_size->depth; - - suffix->suffixSize = sizeof(*suffix); - suffix->maximumOffset = body->guest.pitch*cur_size->height* - cur_size->depth*bpp / stride_bpp; - suffix->flags.discard = 0; - suffix->flags.unsynchronized = 0; - suffix->flags.reserved = 0; - ++cmd; - } -}; - - -/** - * vmw_hw_surface_destroy - destroy a Device surface - * - * @res: Pointer to a struct vmw_resource embedded in a struct - * vmw_surface. - * - * Destroys a the device surface associated with a struct vmw_surface if - * any, and adjusts accounting and resource count accordingly. - */ -static void vmw_hw_surface_destroy(struct vmw_resource *res) -{ - - struct vmw_private *dev_priv = res->dev_priv; - struct vmw_surface *srf; - void *cmd; - - if (res->id != -1) { - - cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size()); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Failed reserving FIFO space for surface " - "destruction.\n"); - return; - } - - vmw_surface_destroy_encode(res->id, cmd); - vmw_fifo_commit(dev_priv, vmw_surface_destroy_size()); - - /* - * used_memory_size_atomic, or separate lock - * to avoid taking dev_priv::cmdbuf_mutex in - * the destroy path. - */ - - mutex_lock(&dev_priv->cmdbuf_mutex); - srf = vmw_res_to_srf(res); - dev_priv->used_memory_size -= res->backup_size; - mutex_unlock(&dev_priv->cmdbuf_mutex); - } - vmw_3d_resource_dec(dev_priv, false); -} - -/** - * vmw_legacy_srf_create - Create a device surface as part of the - * resource validation process. - * - * @res: Pointer to a struct vmw_surface. - * - * If the surface doesn't have a hw id. - * - * Returns -EBUSY if there wasn't sufficient device resources to - * complete the validation. Retry after freeing up resources. - * - * May return other errors if the kernel is out of guest resources. - */ -static int vmw_legacy_srf_create(struct vmw_resource *res) -{ - struct vmw_private *dev_priv = res->dev_priv; - struct vmw_surface *srf; - uint32_t submit_size; - uint8_t *cmd; - int ret; - - if (likely(res->id != -1)) - return 0; - - srf = vmw_res_to_srf(res); - if (unlikely(dev_priv->used_memory_size + res->backup_size >= - dev_priv->memory_size)) - return -EBUSY; - - /* - * Alloc id for the resource. - */ - - ret = vmw_resource_alloc_id(res); - if (unlikely(ret != 0)) { - DRM_ERROR("Failed to allocate a surface id.\n"); - goto out_no_id; - } - - if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) { - ret = -EBUSY; - goto out_no_fifo; - } - - /* - * Encode surface define- commands. - */ - - submit_size = vmw_surface_define_size(srf); - cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Failed reserving FIFO space for surface " - "creation.\n"); - ret = -ENOMEM; - goto out_no_fifo; - } - - vmw_surface_define_encode(srf, cmd); - vmw_fifo_commit(dev_priv, submit_size); - /* - * Surface memory usage accounting. - */ - - dev_priv->used_memory_size += res->backup_size; - return 0; - -out_no_fifo: - vmw_resource_release_id(res); -out_no_id: - return ret; -} - -/** - * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface. - * - * @res: Pointer to a struct vmw_res embedded in a struct - * vmw_surface. - * @val_buf: Pointer to a struct ttm_validate_buffer containing - * information about the backup buffer. - * @bind: Boolean wether to DMA to the surface. - * - * Transfer backup data to or from a legacy surface as part of the - * validation process. - * May return other errors if the kernel is out of guest resources. - * The backup buffer will be fenced or idle upon successful completion, - * and if the surface needs persistent backup storage, the backup buffer - * will also be returned reserved iff @bind is true. - */ -static int vmw_legacy_srf_dma(struct vmw_resource *res, - struct ttm_validate_buffer *val_buf, - bool bind) -{ - SVGAGuestPtr ptr; - struct vmw_fence_obj *fence; - uint32_t submit_size; - struct vmw_surface *srf = vmw_res_to_srf(res); - uint8_t *cmd; - struct vmw_private *dev_priv = res->dev_priv; - - BUG_ON(val_buf->bo == NULL); - - submit_size = vmw_surface_dma_size(srf); - cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Failed reserving FIFO space for surface " - "DMA.\n"); - return -ENOMEM; - } - vmw_bo_get_guest_ptr(val_buf->bo, &ptr); - vmw_surface_dma_encode(srf, cmd, &ptr, bind); - - vmw_fifo_commit(dev_priv, submit_size); - - /* - * Create a fence object and fence the backup buffer. - */ - - (void) vmw_execbuf_fence_commands(NULL, dev_priv, - &fence, NULL); - - vmw_fence_single_bo(val_buf->bo, fence, - val_buf->new_sync_obj_arg); - - if (likely(fence != NULL)) - vmw_fence_obj_unreference(&fence); - - return 0; -} - -/** - * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the - * surface validation process. - * - * @res: Pointer to a struct vmw_res embedded in a struct - * vmw_surface. - * @val_buf: Pointer to a struct ttm_validate_buffer containing - * information about the backup buffer. - * - * This function will copy backup data to the surface if the - * backup buffer is dirty. - */ -static int vmw_legacy_srf_bind(struct vmw_resource *res, - struct ttm_validate_buffer *val_buf) -{ - if (!res->backup_dirty) - return 0; - - return vmw_legacy_srf_dma(res, val_buf, true); -} - - -/** - * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the - * surface eviction process. - * - * @res: Pointer to a struct vmw_res embedded in a struct - * vmw_surface. - * @val_buf: Pointer to a struct ttm_validate_buffer containing - * information about the backup buffer. - * - * This function will copy backup data from the surface. - */ -static int vmw_legacy_srf_unbind(struct vmw_resource *res, - bool readback, - struct ttm_validate_buffer *val_buf) -{ - if (unlikely(readback)) - return vmw_legacy_srf_dma(res, val_buf, false); - return 0; -} - -/** - * vmw_legacy_srf_destroy - Destroy a device surface as part of a - * resource eviction process. - * - * @res: Pointer to a struct vmw_res embedded in a struct - * vmw_surface. - */ -static int vmw_legacy_srf_destroy(struct vmw_resource *res) -{ - struct vmw_private *dev_priv = res->dev_priv; - uint32_t submit_size; - uint8_t *cmd; - - BUG_ON(res->id == -1); - - /* - * Encode the dma- and surface destroy commands. - */ - - submit_size = vmw_surface_destroy_size(); - cmd = vmw_fifo_reserve(dev_priv, submit_size); - if (unlikely(cmd == NULL)) { - DRM_ERROR("Failed reserving FIFO space for surface " - "eviction.\n"); - return -ENOMEM; - } - - vmw_surface_destroy_encode(res->id, cmd); - vmw_fifo_commit(dev_priv, submit_size); - - /* - * Surface memory usage accounting. - */ - - dev_priv->used_memory_size -= res->backup_size; - - /* - * Release the surface ID. - */ - - vmw_resource_release_id(res); - - return 0; -} - - -/** - * vmw_surface_init - initialize a struct vmw_surface - * - * @dev_priv: Pointer to a device private struct. - * @srf: Pointer to the struct vmw_surface to initialize. - * @res_free: Pointer to a resource destructor used to free - * the object. - */ -static int vmw_surface_init(struct vmw_private *dev_priv, - struct vmw_surface *srf, - void (*res_free) (struct vmw_resource *res)) -{ - int ret; - struct vmw_resource *res = &srf->res; - - BUG_ON(res_free == NULL); - (void) vmw_3d_resource_inc(dev_priv, false); - ret = vmw_resource_init(dev_priv, res, true, res_free, - &vmw_legacy_surface_func); - - if (unlikely(ret != 0)) { - vmw_3d_resource_dec(dev_priv, false); - res_free(res); - return ret; - } - - /* - * The surface won't be visible to hardware until a - * surface validate. - */ - - vmw_resource_activate(res, vmw_hw_surface_destroy); - return ret; -} - -/** - * vmw_user_surface_base_to_res - TTM base object to resource converter for - * user visible surfaces - * - * @base: Pointer to a TTM base object - * - * Returns the struct vmw_resource embedded in a struct vmw_surface - * for the user-visible object identified by the TTM base object @base. - */ -static struct vmw_resource * -vmw_user_surface_base_to_res(struct ttm_base_object *base) -{ - return &(container_of(base, struct vmw_user_surface, base)->srf.res); -} - -/** - * vmw_user_surface_free - User visible surface resource destructor - * - * @res: A struct vmw_resource embedded in a struct vmw_surface. - */ -static void vmw_user_surface_free(struct vmw_resource *res) -{ - struct vmw_surface *srf = vmw_res_to_srf(res); - struct vmw_user_surface *user_srf = - container_of(srf, struct vmw_user_surface, srf); - struct vmw_private *dev_priv = srf->res.dev_priv; - uint32_t size = user_srf->size; - - kfree(srf->offsets); - kfree(srf->sizes); - kfree(srf->snooper.image); - ttm_base_object_kfree(user_srf, base); - ttm_mem_global_free(vmw_mem_glob(dev_priv), size); -} - -/** - * vmw_user_surface_free - User visible surface TTM base object destructor - * - * @p_base: Pointer to a pointer to a TTM base object - * embedded in a struct vmw_user_surface. - * - * Drops the base object's reference on its resource, and the - * pointer pointed to by *p_base is set to NULL. - */ -static void vmw_user_surface_base_release(struct ttm_base_object **p_base) -{ - struct ttm_base_object *base = *p_base; - struct vmw_user_surface *user_srf = - container_of(base, struct vmw_user_surface, base); - struct vmw_resource *res = &user_srf->srf.res; - - *p_base = NULL; - vmw_resource_unreference(&res); -} - -/** - * vmw_user_surface_destroy_ioctl - Ioctl function implementing - * the user surface destroy functionality. - * - * @dev: Pointer to a struct drm_device. - * @data: Pointer to data copied from / to user-space. - * @file_priv: Pointer to a drm file private structure. - */ -int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; - struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - - return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE); -} - -/** - * vmw_user_surface_define_ioctl - Ioctl function implementing - * the user surface define functionality. - * - * @dev: Pointer to a struct drm_device. - * @data: Pointer to data copied from / to user-space. - * @file_priv: Pointer to a drm file private structure. - */ -int vmw_surface_define_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - struct vmw_private *dev_priv = vmw_priv(dev); - struct vmw_user_surface *user_srf; - struct vmw_surface *srf; - struct vmw_resource *res; - struct vmw_resource *tmp; - union drm_vmw_surface_create_arg *arg = - (union drm_vmw_surface_create_arg *)data; - struct drm_vmw_surface_create_req *req = &arg->req; - struct drm_vmw_surface_arg *rep = &arg->rep; - struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct drm_vmw_size __user *user_sizes; - int ret; - int i, j; - uint32_t cur_bo_offset; - struct drm_vmw_size *cur_size; - struct vmw_surface_offset *cur_offset; - uint32_t stride_bpp; - uint32_t bpp; - uint32_t num_sizes; - uint32_t size; - struct vmw_master *vmaster = vmw_master(file_priv->master); - - if (unlikely(vmw_user_surface_size == 0)) - vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) + - 128; - - num_sizes = 0; - for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) - num_sizes += req->mip_levels[i]; - - if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * - DRM_VMW_MAX_MIP_LEVELS) - return -EINVAL; - - size = vmw_user_surface_size + 128 + - ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) + - ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset)); - - - ret = ttm_read_lock(&vmaster->lock, true); - if (unlikely(ret != 0)) - return ret; - - ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), - size, false, true); - if (unlikely(ret != 0)) { - if (ret != -ERESTARTSYS) - DRM_ERROR("Out of graphics memory for surface" - " creation.\n"); - goto out_unlock; - } - - user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); - if (unlikely(user_srf == NULL)) { - ret = -ENOMEM; - goto out_no_user_srf; - } - - srf = &user_srf->srf; - res = &srf->res; - - srf->flags = req->flags; - srf->format = req->format; - srf->scanout = req->scanout; - - memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels)); - srf->num_sizes = num_sizes; - user_srf->size = size; - - srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); - if (unlikely(srf->sizes == NULL)) { - ret = -ENOMEM; - goto out_no_sizes; - } - srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets), - GFP_KERNEL); - if (unlikely(srf->sizes == NULL)) { - ret = -ENOMEM; - goto out_no_offsets; - } - - user_sizes = (struct drm_vmw_size __user *)(unsigned long) - req->size_addr; - - ret = copy_from_user(srf->sizes, user_sizes, - srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) { - ret = -EFAULT; - goto out_no_copy; - } - - srf->base_size = *srf->sizes; - srf->autogen_filter = SVGA3D_TEX_FILTER_NONE; - srf->multisample_count = 1; - - cur_bo_offset = 0; - cur_offset = srf->offsets; - cur_size = srf->sizes; - - bpp = vmw_sf_bpp[srf->format].bpp; - stride_bpp = vmw_sf_bpp[srf->format].s_bpp; - - for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { - for (j = 0; j < srf->mip_levels[i]; ++j) { - uint32_t stride = - (cur_size->width * stride_bpp + 7) >> 3; - - cur_offset->face = i; - cur_offset->mip = j; - cur_offset->bo_offset = cur_bo_offset; - cur_bo_offset += stride * cur_size->height * - cur_size->depth * bpp / stride_bpp; - ++cur_offset; - ++cur_size; - } - } - res->backup_size = cur_bo_offset; - - if (srf->scanout && - srf->num_sizes == 1 && - srf->sizes[0].width == 64 && - srf->sizes[0].height == 64 && - srf->format == SVGA3D_A8R8G8B8) { - - /* allocate image area and clear it */ - srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL); - if (!srf->snooper.image) { - DRM_ERROR("Failed to allocate cursor_image\n"); - ret = -ENOMEM; - goto out_no_copy; - } - } else { - srf->snooper.image = NULL; - } - srf->snooper.crtc = NULL; - - user_srf->base.shareable = false; - user_srf->base.tfile = NULL; - - /** - * From this point, the generic resource management functions - * destroy the object on failure. - */ - - ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); - if (unlikely(ret != 0)) - goto out_unlock; - - tmp = vmw_resource_reference(&srf->res); - ret = ttm_base_object_init(tfile, &user_srf->base, - req->shareable, VMW_RES_SURFACE, - &vmw_user_surface_base_release, NULL); - - if (unlikely(ret != 0)) { - vmw_resource_unreference(&tmp); - vmw_resource_unreference(&res); - goto out_unlock; - } - - rep->sid = user_srf->base.hash.key; - vmw_resource_unreference(&res); - - ttm_read_unlock(&vmaster->lock); - return 0; -out_no_copy: - kfree(srf->offsets); -out_no_offsets: - kfree(srf->sizes); -out_no_sizes: - kfree(user_srf); -out_no_user_srf: - ttm_mem_global_free(vmw_mem_glob(dev_priv), size); -out_unlock: - ttm_read_unlock(&vmaster->lock); - return ret; -} - -/** - * vmw_user_surface_define_ioctl - Ioctl function implementing - * the user surface reference functionality. - * - * @dev: Pointer to a struct drm_device. - * @data: Pointer to data copied from / to user-space. - * @file_priv: Pointer to a drm file private structure. - */ -int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) -{ - union drm_vmw_surface_reference_arg *arg = - (union drm_vmw_surface_reference_arg *)data; - struct drm_vmw_surface_arg *req = &arg->req; - struct drm_vmw_surface_create_req *rep = &arg->rep; - struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; - struct vmw_surface *srf; - struct vmw_user_surface *user_srf; - struct drm_vmw_size __user *user_sizes; - struct ttm_base_object *base; - int ret = -EINVAL; - - base = ttm_base_object_lookup(tfile, req->sid); - if (unlikely(base == NULL)) { - DRM_ERROR("Could not find surface to reference.\n"); - return -EINVAL; - } - - if (unlikely(base->object_type != VMW_RES_SURFACE)) - goto out_bad_resource; - - user_srf = container_of(base, struct vmw_user_surface, base); - srf = &user_srf->srf; - - ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL); - if (unlikely(ret != 0)) { - DRM_ERROR("Could not add a reference to a surface.\n"); - goto out_no_reference; - } - - rep->flags = srf->flags; - rep->format = srf->format; - memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels)); - user_sizes = (struct drm_vmw_size __user *)(unsigned long) - rep->size_addr; - - if (user_sizes) - ret = copy_to_user(user_sizes, srf->sizes, - srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) { - DRM_ERROR("copy_to_user failed %p %u\n", - user_sizes, srf->num_sizes); - ret = -EFAULT; - } -out_bad_resource: -out_no_reference: - ttm_base_object_unref(&base); - - return ret; -} - -/** * vmw_user_resource_lookup_handle - lookup a struct resource from a * TTM user-space handle and perform basic type checks * diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h new file mode 100644 index 0000000..f3adeed --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource_priv.h @@ -0,0 +1,84 @@ +/************************************************************************** + * + * Copyright © 2012 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef _VMWGFX_RESOURCE_PRIV_H_ +#define _VMWGFX_RESOURCE_PRIV_H_ + +#include "vmwgfx_drv.h" + +/** + * struct vmw_user_resource_conv - Identify a derived user-exported resource + * type and provide a function to convert its ttm_base_object pointer to + * a struct vmw_resource + */ +struct vmw_user_resource_conv { + enum ttm_object_type object_type; + struct vmw_resource *(*base_obj_to_res)(struct ttm_base_object *base); + void (*res_free) (struct vmw_resource *res); +}; + +/** + * struct vmw_res_func - members and functions common for a resource type + * + * @res_type: Enum that identifies the lru list to use for eviction. + * @needs_backup: Whether the resource is guest-backed and needs + * persistent buffer storage. + * @type_name: String that identifies the resource type. + * @backup_placement: TTM placement for backup buffers. + * @may_evict Whether the resource may be evicted. + * @create: Create a hardware resource. + * @destroy: Destroy a hardware resource. + * @bind: Bind a hardware resource to persistent buffer storage. + * @unbind: Unbind a hardware resource from persistent + * buffer storage. + */ + +struct vmw_res_func { + enum vmw_res_type res_type; + bool needs_backup; + const char *type_name; + struct ttm_placement *backup_placement; + bool may_evict; + + int (*create) (struct vmw_resource *res); + int (*destroy) (struct vmw_resource *res); + int (*bind) (struct vmw_resource *res, + struct ttm_validate_buffer *val_buf); + int (*unbind) (struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf); +}; + +int vmw_resource_alloc_id(struct vmw_resource *res); +void vmw_resource_release_id(struct vmw_resource *res); +int vmw_resource_init(struct vmw_private *dev_priv, struct vmw_resource *res, + bool delay_id, + void (*res_free) (struct vmw_resource *res), + const struct vmw_res_func *func); +void vmw_resource_activate(struct vmw_resource *res, + void (*hw_destroy) (struct vmw_resource *)); +#endif diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c new file mode 100644 index 0000000..13efb88 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -0,0 +1,969 @@ +/************************************************************************** + * + * Copyright © 2009-2012 VMware, Inc., Palo Alto, CA., USA + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "vmwgfx_drv.h" +#include "vmwgfx_resource_priv.h" +#include <ttm/ttm_placement.h> + +/** + * struct vmw_user_surface - User-space visible surface resource + * + * @base: The TTM base object handling user-space visibility. + * @srf: The surface metadata. + * @size: TTM accounting size for the surface. + */ +struct vmw_user_surface { + struct ttm_base_object base; + struct vmw_surface srf; + uint32_t size; + uint32_t backup_handle; +}; + +/** + * struct vmw_surface_offset - Backing store mip level offset info + * + * @face: Surface face. + * @mip: Mip level. + * @bo_offset: Offset into backing store of this mip level. + * + */ +struct vmw_surface_offset { + uint32_t face; + uint32_t mip; + uint32_t bo_offset; +}; + +static void vmw_user_surface_free(struct vmw_resource *res); +static struct vmw_resource * +vmw_user_surface_base_to_res(struct ttm_base_object *base); +static int vmw_legacy_srf_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf); +static int vmw_legacy_srf_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf); +static int vmw_legacy_srf_create(struct vmw_resource *res); +static int vmw_legacy_srf_destroy(struct vmw_resource *res); + +static const struct vmw_user_resource_conv user_surface_conv = { + .object_type = VMW_RES_SURFACE, + .base_obj_to_res = vmw_user_surface_base_to_res, + .res_free = vmw_user_surface_free +}; + +const struct vmw_user_resource_conv *user_surface_converter = + &user_surface_conv; + + +static uint64_t vmw_user_surface_size; + +static const struct vmw_res_func vmw_legacy_surface_func = { + .res_type = vmw_res_surface, + .needs_backup = false, + .may_evict = true, + .type_name = "legacy surfaces", + .backup_placement = &vmw_srf_placement, + .create = &vmw_legacy_srf_create, + .destroy = &vmw_legacy_srf_destroy, + .bind = &vmw_legacy_srf_bind, + .unbind = &vmw_legacy_srf_unbind +}; + +/** + * struct vmw_bpp - Bits per pixel info for surface storage size computation. + * + * @bpp: Bits per pixel. + * @s_bpp: Stride bits per pixel. See definition below. + * + */ +struct vmw_bpp { + uint8_t bpp; + uint8_t s_bpp; +}; + +/* + * Size table for the supported SVGA3D surface formats. It consists of + * two values. The bpp value and the s_bpp value which is short for + * "stride bits per pixel" The values are given in such a way that the + * minimum stride for the image is calculated using + * + * min_stride = w*s_bpp + * + * and the total memory requirement for the image is + * + * h*min_stride*bpp/s_bpp + * + */ +static const struct vmw_bpp vmw_sf_bpp[] = { + [SVGA3D_FORMAT_INVALID] = {0, 0}, + [SVGA3D_X8R8G8B8] = {32, 32}, + [SVGA3D_A8R8G8B8] = {32, 32}, + [SVGA3D_R5G6B5] = {16, 16}, + [SVGA3D_X1R5G5B5] = {16, 16}, + [SVGA3D_A1R5G5B5] = {16, 16}, + [SVGA3D_A4R4G4B4] = {16, 16}, + [SVGA3D_Z_D32] = {32, 32}, + [SVGA3D_Z_D16] = {16, 16}, + [SVGA3D_Z_D24S8] = {32, 32}, + [SVGA3D_Z_D15S1] = {16, 16}, + [SVGA3D_LUMINANCE8] = {8, 8}, + [SVGA3D_LUMINANCE4_ALPHA4] = {8, 8}, + [SVGA3D_LUMINANCE16] = {16, 16}, + [SVGA3D_LUMINANCE8_ALPHA8] = {16, 16}, + [SVGA3D_DXT1] = {4, 16}, + [SVGA3D_DXT2] = {8, 32}, + [SVGA3D_DXT3] = {8, 32}, + [SVGA3D_DXT4] = {8, 32}, + [SVGA3D_DXT5] = {8, 32}, + [SVGA3D_BUMPU8V8] = {16, 16}, + [SVGA3D_BUMPL6V5U5] = {16, 16}, + [SVGA3D_BUMPX8L8V8U8] = {32, 32}, + [SVGA3D_ARGB_S10E5] = {16, 16}, + [SVGA3D_ARGB_S23E8] = {32, 32}, + [SVGA3D_A2R10G10B10] = {32, 32}, + [SVGA3D_V8U8] = {16, 16}, + [SVGA3D_Q8W8V8U8] = {32, 32}, + [SVGA3D_CxV8U8] = {16, 16}, + [SVGA3D_X8L8V8U8] = {32, 32}, + [SVGA3D_A2W10V10U10] = {32, 32}, + [SVGA3D_ALPHA8] = {8, 8}, + [SVGA3D_R_S10E5] = {16, 16}, + [SVGA3D_R_S23E8] = {32, 32}, + [SVGA3D_RG_S10E5] = {16, 16}, + [SVGA3D_RG_S23E8] = {32, 32}, + [SVGA3D_BUFFER] = {8, 8}, + [SVGA3D_Z_D24X8] = {32, 32}, + [SVGA3D_V16U16] = {32, 32}, + [SVGA3D_G16R16] = {32, 32}, + [SVGA3D_A16B16G16R16] = {64, 64}, + [SVGA3D_UYVY] = {12, 12}, + [SVGA3D_YUY2] = {12, 12}, + [SVGA3D_NV12] = {12, 8}, + [SVGA3D_AYUV] = {32, 32}, + [SVGA3D_BC4_UNORM] = {4, 16}, + [SVGA3D_BC5_UNORM] = {8, 32}, + [SVGA3D_Z_DF16] = {16, 16}, + [SVGA3D_Z_DF24] = {24, 24}, + [SVGA3D_Z_D24S8_INT] = {32, 32} +}; + + +/** + * struct vmw_surface_dma - SVGA3D DMA command + */ +struct vmw_surface_dma { + SVGA3dCmdHeader header; + SVGA3dCmdSurfaceDMA body; + SVGA3dCopyBox cb; + SVGA3dCmdSurfaceDMASuffix suffix; +}; + +/** + * struct vmw_surface_define - SVGA3D Surface Define command + */ +struct vmw_surface_define { + SVGA3dCmdHeader header; + SVGA3dCmdDefineSurface body; +}; + +/** + * struct vmw_surface_destroy - SVGA3D Surface Destroy command + */ +struct vmw_surface_destroy { + SVGA3dCmdHeader header; + SVGA3dCmdDestroySurface body; +}; + + +/** + * vmw_surface_dma_size - Compute fifo size for a dma command. + * + * @srf: Pointer to a struct vmw_surface + * + * Computes the required size for a surface dma command for backup or + * restoration of the surface represented by @srf. + */ +static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf) +{ + return srf->num_sizes * sizeof(struct vmw_surface_dma); +} + + +/** + * vmw_surface_define_size - Compute fifo size for a surface define command. + * + * @srf: Pointer to a struct vmw_surface + * + * Computes the required size for a surface define command for the definition + * of the surface represented by @srf. + */ +static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf) +{ + return sizeof(struct vmw_surface_define) + srf->num_sizes * + sizeof(SVGA3dSize); +} + + +/** + * vmw_surface_destroy_size - Compute fifo size for a surface destroy command. + * + * Computes the required size for a surface destroy command for the destruction + * of a hw surface. + */ +static inline uint32_t vmw_surface_destroy_size(void) +{ + return sizeof(struct vmw_surface_destroy); +} + +/** + * vmw_surface_destroy_encode - Encode a surface_destroy command. + * + * @id: The surface id + * @cmd_space: Pointer to memory area in which the commands should be encoded. + */ +static void vmw_surface_destroy_encode(uint32_t id, + void *cmd_space) +{ + struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *) + cmd_space; + + cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY; + cmd->header.size = sizeof(cmd->body); + cmd->body.sid = id; +} + +/** + * vmw_surface_define_encode - Encode a surface_define command. + * + * @srf: Pointer to a struct vmw_surface object. + * @cmd_space: Pointer to memory area in which the commands should be encoded. + */ +static void vmw_surface_define_encode(const struct vmw_surface *srf, + void *cmd_space) +{ + struct vmw_surface_define *cmd = (struct vmw_surface_define *) + cmd_space; + struct drm_vmw_size *src_size; + SVGA3dSize *cmd_size; + uint32_t cmd_len; + int i; + + cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize); + + cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE; + cmd->header.size = cmd_len; + cmd->body.sid = srf->res.id; + cmd->body.surfaceFlags = srf->flags; + cmd->body.format = cpu_to_le32(srf->format); + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) + cmd->body.face[i].numMipLevels = srf->mip_levels[i]; + + cmd += 1; + cmd_size = (SVGA3dSize *) cmd; + src_size = srf->sizes; + + for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) { + cmd_size->width = src_size->width; + cmd_size->height = src_size->height; + cmd_size->depth = src_size->depth; + } +} + +/** + * vmw_surface_dma_encode - Encode a surface_dma command. + * + * @srf: Pointer to a struct vmw_surface object. + * @cmd_space: Pointer to memory area in which the commands should be encoded. + * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents + * should be placed or read from. + * @to_surface: Boolean whether to DMA to the surface or from the surface. + */ +static void vmw_surface_dma_encode(struct vmw_surface *srf, + void *cmd_space, + const SVGAGuestPtr *ptr, + bool to_surface) +{ + uint32_t i; + uint32_t bpp = vmw_sf_bpp[srf->format].bpp; + uint32_t stride_bpp = vmw_sf_bpp[srf->format].s_bpp; + struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space; + + for (i = 0; i < srf->num_sizes; ++i) { + SVGA3dCmdHeader *header = &cmd->header; + SVGA3dCmdSurfaceDMA *body = &cmd->body; + SVGA3dCopyBox *cb = &cmd->cb; + SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix; + const struct vmw_surface_offset *cur_offset = &srf->offsets[i]; + const struct drm_vmw_size *cur_size = &srf->sizes[i]; + + header->id = SVGA_3D_CMD_SURFACE_DMA; + header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix); + + body->guest.ptr = *ptr; + body->guest.ptr.offset += cur_offset->bo_offset; + body->guest.pitch = (cur_size->width * stride_bpp + 7) >> 3; + body->host.sid = srf->res.id; + body->host.face = cur_offset->face; + body->host.mipmap = cur_offset->mip; + body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM : + SVGA3D_READ_HOST_VRAM); + cb->x = 0; + cb->y = 0; + cb->z = 0; + cb->srcx = 0; + cb->srcy = 0; + cb->srcz = 0; + cb->w = cur_size->width; + cb->h = cur_size->height; + cb->d = cur_size->depth; + + suffix->suffixSize = sizeof(*suffix); + suffix->maximumOffset = body->guest.pitch*cur_size->height* + cur_size->depth*bpp / stride_bpp; + suffix->flags.discard = 0; + suffix->flags.unsynchronized = 0; + suffix->flags.reserved = 0; + ++cmd; + } +}; + + +/** + * vmw_hw_surface_destroy - destroy a Device surface + * + * @res: Pointer to a struct vmw_resource embedded in a struct + * vmw_surface. + * + * Destroys a the device surface associated with a struct vmw_surface if + * any, and adjusts accounting and resource count accordingly. + */ +static void vmw_hw_surface_destroy(struct vmw_resource *res) +{ + + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_surface *srf; + void *cmd; + + if (res->id != -1) { + + cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size()); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for surface " + "destruction.\n"); + return; + } + + vmw_surface_destroy_encode(res->id, cmd); + vmw_fifo_commit(dev_priv, vmw_surface_destroy_size()); + + /* + * used_memory_size_atomic, or separate lock + * to avoid taking dev_priv::cmdbuf_mutex in + * the destroy path. + */ + + mutex_lock(&dev_priv->cmdbuf_mutex); + srf = vmw_res_to_srf(res); + dev_priv->used_memory_size -= res->backup_size; + mutex_unlock(&dev_priv->cmdbuf_mutex); + } + vmw_3d_resource_dec(dev_priv, false); +} + +/** + * vmw_legacy_srf_create - Create a device surface as part of the + * resource validation process. + * + * @res: Pointer to a struct vmw_surface. + * + * If the surface doesn't have a hw id. + * + * Returns -EBUSY if there wasn't sufficient device resources to + * complete the validation. Retry after freeing up resources. + * + * May return other errors if the kernel is out of guest resources. + */ +static int vmw_legacy_srf_create(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_surface *srf; + uint32_t submit_size; + uint8_t *cmd; + int ret; + + if (likely(res->id != -1)) + return 0; + + srf = vmw_res_to_srf(res); + if (unlikely(dev_priv->used_memory_size + res->backup_size >= + dev_priv->memory_size)) + return -EBUSY; + + /* + * Alloc id for the resource. + */ + + ret = vmw_resource_alloc_id(res); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate a surface id.\n"); + goto out_no_id; + } + + if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) { + ret = -EBUSY; + goto out_no_fifo; + } + + /* + * Encode surface define- commands. + */ + + submit_size = vmw_surface_define_size(srf); + cmd = vmw_fifo_reserve(dev_priv, submit_size); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for surface " + "creation.\n"); + ret = -ENOMEM; + goto out_no_fifo; + } + + vmw_surface_define_encode(srf, cmd); + vmw_fifo_commit(dev_priv, submit_size); + /* + * Surface memory usage accounting. + */ + + dev_priv->used_memory_size += res->backup_size; + return 0; + +out_no_fifo: + vmw_resource_release_id(res); +out_no_id: + return ret; +} + +/** + * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * @bind: Boolean wether to DMA to the surface. + * + * Transfer backup data to or from a legacy surface as part of the + * validation process. + * May return other errors if the kernel is out of guest resources. + * The backup buffer will be fenced or idle upon successful completion, + * and if the surface needs persistent backup storage, the backup buffer + * will also be returned reserved iff @bind is true. + */ +static int vmw_legacy_srf_dma(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf, + bool bind) +{ + SVGAGuestPtr ptr; + struct vmw_fence_obj *fence; + uint32_t submit_size; + struct vmw_surface *srf = vmw_res_to_srf(res); + uint8_t *cmd; + struct vmw_private *dev_priv = res->dev_priv; + + BUG_ON(val_buf->bo == NULL); + + submit_size = vmw_surface_dma_size(srf); + cmd = vmw_fifo_reserve(dev_priv, submit_size); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for surface " + "DMA.\n"); + return -ENOMEM; + } + vmw_bo_get_guest_ptr(val_buf->bo, &ptr); + vmw_surface_dma_encode(srf, cmd, &ptr, bind); + + vmw_fifo_commit(dev_priv, submit_size); + + /* + * Create a fence object and fence the backup buffer. + */ + + (void) vmw_execbuf_fence_commands(NULL, dev_priv, + &fence, NULL); + + vmw_fence_single_bo(val_buf->bo, fence, + val_buf->new_sync_obj_arg); + + if (likely(fence != NULL)) + vmw_fence_obj_unreference(&fence); + + return 0; +} + +/** + * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the + * surface validation process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * + * This function will copy backup data to the surface if the + * backup buffer is dirty. + */ +static int vmw_legacy_srf_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf) +{ + if (!res->backup_dirty) + return 0; + + return vmw_legacy_srf_dma(res, val_buf, true); +} + + +/** + * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the + * surface eviction process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + * @val_buf: Pointer to a struct ttm_validate_buffer containing + * information about the backup buffer. + * + * This function will copy backup data from the surface. + */ +static int vmw_legacy_srf_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf) +{ + if (unlikely(readback)) + return vmw_legacy_srf_dma(res, val_buf, false); + return 0; +} + +/** + * vmw_legacy_srf_destroy - Destroy a device surface as part of a + * resource eviction process. + * + * @res: Pointer to a struct vmw_res embedded in a struct + * vmw_surface. + */ +static int vmw_legacy_srf_destroy(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + uint32_t submit_size; + uint8_t *cmd; + + BUG_ON(res->id == -1); + + /* + * Encode the dma- and surface destroy commands. + */ + + submit_size = vmw_surface_destroy_size(); + cmd = vmw_fifo_reserve(dev_priv, submit_size); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for surface " + "eviction.\n"); + return -ENOMEM; + } + + vmw_surface_destroy_encode(res->id, cmd); + vmw_fifo_commit(dev_priv, submit_size); + + /* + * Surface memory usage accounting. + */ + + dev_priv->used_memory_size -= res->backup_size; + + /* + * Release the surface ID. + */ + + vmw_resource_release_id(res); + + return 0; +} + + +/** + * vmw_surface_init - initialize a struct vmw_surface + * + * @dev_priv: Pointer to a device private struct. + * @srf: Pointer to the struct vmw_surface to initialize. + * @res_free: Pointer to a resource destructor used to free + * the object. + */ +static int vmw_surface_init(struct vmw_private *dev_priv, + struct vmw_surface *srf, + void (*res_free) (struct vmw_resource *res)) +{ + int ret; + struct vmw_resource *res = &srf->res; + + BUG_ON(res_free == NULL); + (void) vmw_3d_resource_inc(dev_priv, false); + ret = vmw_resource_init(dev_priv, res, true, res_free, + &vmw_legacy_surface_func); + + if (unlikely(ret != 0)) { + vmw_3d_resource_dec(dev_priv, false); + res_free(res); + return ret; + } + + /* + * The surface won't be visible to hardware until a + * surface validate. + */ + + vmw_resource_activate(res, vmw_hw_surface_destroy); + return ret; +} + +/** + * vmw_user_surface_base_to_res - TTM base object to resource converter for + * user visible surfaces + * + * @base: Pointer to a TTM base object + * + * Returns the struct vmw_resource embedded in a struct vmw_surface + * for the user-visible object identified by the TTM base object @base. + */ +static struct vmw_resource * +vmw_user_surface_base_to_res(struct ttm_base_object *base) +{ + return &(container_of(base, struct vmw_user_surface, base)->srf.res); +} + +/** + * vmw_user_surface_free - User visible surface resource destructor + * + * @res: A struct vmw_resource embedded in a struct vmw_surface. + */ +static void vmw_user_surface_free(struct vmw_resource *res) +{ + struct vmw_surface *srf = vmw_res_to_srf(res); + struct vmw_user_surface *user_srf = + container_of(srf, struct vmw_user_surface, srf); + struct vmw_private *dev_priv = srf->res.dev_priv; + uint32_t size = user_srf->size; + + kfree(srf->offsets); + kfree(srf->sizes); + kfree(srf->snooper.image); + ttm_base_object_kfree(user_srf, base); + ttm_mem_global_free(vmw_mem_glob(dev_priv), size); +} + +/** + * vmw_user_surface_free - User visible surface TTM base object destructor + * + * @p_base: Pointer to a pointer to a TTM base object + * embedded in a struct vmw_user_surface. + * + * Drops the base object's reference on its resource, and the + * pointer pointed to by *p_base is set to NULL. + */ +static void vmw_user_surface_base_release(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct vmw_user_surface *user_srf = + container_of(base, struct vmw_user_surface, base); + struct vmw_resource *res = &user_srf->srf.res; + + *p_base = NULL; + vmw_resource_unreference(&res); +} + +/** + * vmw_user_surface_destroy_ioctl - Ioctl function implementing + * the user surface destroy functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE); +} + +/** + * vmw_user_surface_define_ioctl - Ioctl function implementing + * the user surface define functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_user_surface *user_srf; + struct vmw_surface *srf; + struct vmw_resource *res; + struct vmw_resource *tmp; + union drm_vmw_surface_create_arg *arg = + (union drm_vmw_surface_create_arg *)data; + struct drm_vmw_surface_create_req *req = &arg->req; + struct drm_vmw_surface_arg *rep = &arg->rep; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct drm_vmw_size __user *user_sizes; + int ret; + int i, j; + uint32_t cur_bo_offset; + struct drm_vmw_size *cur_size; + struct vmw_surface_offset *cur_offset; + uint32_t stride_bpp; + uint32_t bpp; + uint32_t num_sizes; + uint32_t size; + struct vmw_master *vmaster = vmw_master(file_priv->master); + + if (unlikely(vmw_user_surface_size == 0)) + vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) + + 128; + + num_sizes = 0; + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) + num_sizes += req->mip_levels[i]; + + if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * + DRM_VMW_MAX_MIP_LEVELS) + return -EINVAL; + + size = vmw_user_surface_size + 128 + + ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) + + ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset)); + + + ret = ttm_read_lock(&vmaster->lock, true); + if (unlikely(ret != 0)) + return ret; + + ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), + size, false, true); + if (unlikely(ret != 0)) { + if (ret != -ERESTARTSYS) + DRM_ERROR("Out of graphics memory for surface" + " creation.\n"); + goto out_unlock; + } + + user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL); + if (unlikely(user_srf == NULL)) { + ret = -ENOMEM; + goto out_no_user_srf; + } + + srf = &user_srf->srf; + res = &srf->res; + + srf->flags = req->flags; + srf->format = req->format; + srf->scanout = req->scanout; + + memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels)); + srf->num_sizes = num_sizes; + user_srf->size = size; + + srf->sizes = kmalloc(srf->num_sizes * sizeof(*srf->sizes), GFP_KERNEL); + if (unlikely(srf->sizes == NULL)) { + ret = -ENOMEM; + goto out_no_sizes; + } + srf->offsets = kmalloc(srf->num_sizes * sizeof(*srf->offsets), + GFP_KERNEL); + if (unlikely(srf->sizes == NULL)) { + ret = -ENOMEM; + goto out_no_offsets; + } + + user_sizes = (struct drm_vmw_size __user *)(unsigned long) + req->size_addr; + + ret = copy_from_user(srf->sizes, user_sizes, + srf->num_sizes * sizeof(*srf->sizes)); + if (unlikely(ret != 0)) { + ret = -EFAULT; + goto out_no_copy; + } + + srf->base_size = *srf->sizes; + srf->autogen_filter = SVGA3D_TEX_FILTER_NONE; + srf->multisample_count = 1; + + cur_bo_offset = 0; + cur_offset = srf->offsets; + cur_size = srf->sizes; + + bpp = vmw_sf_bpp[srf->format].bpp; + stride_bpp = vmw_sf_bpp[srf->format].s_bpp; + + for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) { + for (j = 0; j < srf->mip_levels[i]; ++j) { + uint32_t stride = + (cur_size->width * stride_bpp + 7) >> 3; + + cur_offset->face = i; + cur_offset->mip = j; + cur_offset->bo_offset = cur_bo_offset; + cur_bo_offset += stride * cur_size->height * + cur_size->depth * bpp / stride_bpp; + ++cur_offset; + ++cur_size; + } + } + res->backup_size = cur_bo_offset; + + if (srf->scanout && + srf->num_sizes == 1 && + srf->sizes[0].width == 64 && + srf->sizes[0].height == 64 && + srf->format == SVGA3D_A8R8G8B8) { + + srf->snooper.image = kmalloc(64 * 64 * 4, GFP_KERNEL); + /* clear the image */ + if (srf->snooper.image) { + memset(srf->snooper.image, 0x00, 64 * 64 * 4); + } else { + DRM_ERROR("Failed to allocate cursor_image\n"); + ret = -ENOMEM; + goto out_no_copy; + } + } else { + srf->snooper.image = NULL; + } + srf->snooper.crtc = NULL; + + user_srf->base.shareable = false; + user_srf->base.tfile = NULL; + + /** + * From this point, the generic resource management functions + * destroy the object on failure. + */ + + ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free); + if (unlikely(ret != 0)) + goto out_unlock; + + tmp = vmw_resource_reference(&srf->res); + ret = ttm_base_object_init(tfile, &user_srf->base, + req->shareable, VMW_RES_SURFACE, + &vmw_user_surface_base_release, NULL); + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&tmp); + vmw_resource_unreference(&res); + goto out_unlock; + } + + rep->sid = user_srf->base.hash.key; + vmw_resource_unreference(&res); + + ttm_read_unlock(&vmaster->lock); + return 0; +out_no_copy: + kfree(srf->offsets); +out_no_offsets: + kfree(srf->sizes); +out_no_sizes: + ttm_base_object_kfree(user_srf, base); +out_no_user_srf: + ttm_mem_global_free(vmw_mem_glob(dev_priv), size); +out_unlock: + ttm_read_unlock(&vmaster->lock); + return ret; +} + +/** + * vmw_user_surface_define_ioctl - Ioctl function implementing + * the user surface reference functionality. + * + * @dev: Pointer to a struct drm_device. + * @data: Pointer to data copied from / to user-space. + * @file_priv: Pointer to a drm file private structure. + */ +int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + union drm_vmw_surface_reference_arg *arg = + (union drm_vmw_surface_reference_arg *)data; + struct drm_vmw_surface_arg *req = &arg->req; + struct drm_vmw_surface_create_req *rep = &arg->rep; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_surface *srf; + struct vmw_user_surface *user_srf; + struct drm_vmw_size __user *user_sizes; + struct ttm_base_object *base; + int ret = -EINVAL; + + base = ttm_base_object_lookup(tfile, req->sid); + if (unlikely(base == NULL)) { + DRM_ERROR("Could not find surface to reference.\n"); + return -EINVAL; + } + + if (unlikely(base->object_type != VMW_RES_SURFACE)) + goto out_bad_resource; + + user_srf = container_of(base, struct vmw_user_surface, base); + srf = &user_srf->srf; + + ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL); + if (unlikely(ret != 0)) { + DRM_ERROR("Could not add a reference to a surface.\n"); + goto out_no_reference; + } + + rep->flags = srf->flags; + rep->format = srf->format; + memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels)); + user_sizes = (struct drm_vmw_size __user *)(unsigned long) + rep->size_addr; + + if (user_sizes) + ret = copy_to_user(user_sizes, srf->sizes, + srf->num_sizes * sizeof(*srf->sizes)); + if (unlikely(ret != 0)) { + DRM_ERROR("copy_to_user failed %p %u\n", + user_sizes, srf->num_sizes); + ret = -EFAULT; + } +out_bad_resource: +out_no_reference: + ttm_base_object_unref(&base); + + return ret; +}