Signed-off-by: Thomas Hellstrom thellstrom@vmware.com Reviewed-by: Brian Paul brianp@vmware.com Reviewed-by: Zack Rusin zackr@vmware.com --- drivers/gpu/drm/vmwgfx/Makefile | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 12 + drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 12 + drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 35 +++ drivers/gpu/drm/vmwgfx/vmwgfx_shader.c | 436 ++++++++++++++++++++++++++++++++ 5 files changed, 496 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile index 5d892e7..458cdf6 100644 --- a/drivers/gpu/drm/vmwgfx/Makefile +++ b/drivers/gpu/drm/vmwgfx/Makefile @@ -6,6 +6,6 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.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_context.o \ - vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o + vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o vmwgfx_shader.o
obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 84f8f4c..cfeaa47 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -112,6 +112,12 @@ #define DRM_IOCTL_VMW_UPDATE_LAYOUT \ DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT, \ struct drm_vmw_update_layout_arg) +#define DRM_IOCTL_VMW_CREATE_SHADER \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SHADER, \ + struct drm_vmw_shader_create_arg) +#define DRM_IOCTL_VMW_UNREF_SHADER \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SHADER, \ + struct drm_vmw_shader_arg) #define DRM_IOCTL_VMW_GB_SURFACE_CREATE \ DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE, \ union drm_vmw_gb_surface_create_arg) @@ -183,6 +189,12 @@ static const struct drm_ioctl_desc vmw_ioctls[] = { VMW_IOCTL_DEF(VMW_UPDATE_LAYOUT, vmw_kms_update_layout_ioctl, DRM_MASTER | DRM_UNLOCKED), + VMW_IOCTL_DEF(VMW_CREATE_SHADER, + vmw_shader_define_ioctl, + DRM_AUTH | DRM_UNLOCKED), + VMW_IOCTL_DEF(VMW_UNREF_SHADER, + vmw_shader_destroy_ioctl, + DRM_AUTH | DRM_UNLOCKED), VMW_IOCTL_DEF(VMW_GB_SURFACE_CREATE, vmw_gb_surface_define_ioctl, DRM_AUTH | DRM_UNLOCKED), diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index 71da388..453e55d 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -70,6 +70,7 @@ #define VMW_RES_SURFACE ttm_driver_type1 #define VMW_RES_STREAM ttm_driver_type2 #define VMW_RES_FENCE ttm_driver_type3 +#define VMW_RES_SHADER ttm_driver_type4
struct vmw_fpriv { struct drm_master *locked_master; @@ -119,6 +120,7 @@ enum vmw_res_type { vmw_res_context, vmw_res_surface, vmw_res_stream, + vmw_res_shader, vmw_res_max };
@@ -495,6 +497,7 @@ extern void vmw_gmr_unbind(struct vmw_private *dev_priv, int gmr_id); struct vmw_user_resource_conv; extern const struct vmw_user_resource_conv *user_surface_converter; extern const struct vmw_user_resource_conv *user_context_converter; +extern const struct vmw_user_resource_conv *user_shader_converter;
extern struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv); extern void vmw_resource_unreference(struct vmw_resource **p_res); @@ -883,6 +886,15 @@ extern struct vmw_mob *vmw_mob_create(unsigned long data_pages); extern int vmw_otables_setup(struct vmw_private *dev_priv); extern void vmw_otables_takedown(struct vmw_private *dev_priv);
+/* + * Shader management - vmwgfx_shader.c + */ + +extern int vmw_shader_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +extern int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + /** * Inline helper functions */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 4d51ad0..c8eef5f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -1426,9 +1426,41 @@ static int vmw_cmd_set_shader(struct vmw_private *dev_priv, if (unlikely(ret != 0)) return ret;
+ + if (dev_priv->has_mob) + return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader, + user_shader_converter, + &cmd->body.shid, NULL); + return 0; }
+/** + * vmw_cmd_bind_gb_shader - Validate an SVGA_3D_CMD_BIND_GB_SHADER + * command + * + * @dev_priv: Pointer to a device private struct. + * @sw_context: The software context being used for this batch. + * @header: Pointer to the command header in the command stream. + */ +static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv, + struct vmw_sw_context *sw_context, + SVGA3dCmdHeader *header) +{ + struct vmw_bind_gb_shader_cmd { + SVGA3dCmdHeader header; + SVGA3dCmdBindGBShader body; + } *cmd; + + cmd = container_of(header, struct vmw_bind_gb_shader_cmd, + header); + + return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader, + user_shader_converter, + &cmd->body.shid, &cmd->body.mobid, + cmd->body.offsetInBytes); +} + static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv, struct vmw_sw_context *sw_context, void *buf, uint32_t *size) @@ -1536,6 +1568,9 @@ static vmw_cmd_func vmw_cmd_funcs[SVGA_3D_CMD_MAX] = { VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid), VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid), VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid), + VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid), + VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader), + VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid), VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query), VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query), VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query), diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c new file mode 100644 index 0000000..76d3541 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c @@ -0,0 +1,436 @@ +/************************************************************************** + * + * 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_shader { + struct vmw_resource res; + SVGA3dShaderType type; + uint32_t size; +}; + +struct vmw_user_shader { + struct ttm_base_object base; + struct vmw_shader shader; +}; + +static void vmw_user_shader_free(struct vmw_resource *res); +static struct vmw_resource * +vmw_user_shader_base_to_res(struct ttm_base_object *base); + +static int vmw_gb_shader_create(struct vmw_resource *res); +static int vmw_gb_shader_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf); +static int vmw_gb_shader_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf); +static int vmw_gb_shader_destroy(struct vmw_resource *res); + +static uint64_t vmw_user_shader_size; + +static const struct vmw_user_resource_conv user_shader_conv = { + .object_type = VMW_RES_SHADER, + .base_obj_to_res = vmw_user_shader_base_to_res, + .res_free = vmw_user_shader_free +}; + +const struct vmw_user_resource_conv *user_shader_converter = + &user_shader_conv; + + +static const struct vmw_res_func vmw_gb_shader_func = { + .res_type = vmw_res_shader, + .needs_backup = true, + .may_evict = true, + .type_name = "guest backed shaders", + .backup_placement = &vmw_mob_placement, + .create = vmw_gb_shader_create, + .destroy = vmw_gb_shader_destroy, + .bind = vmw_gb_shader_bind, + .unbind = vmw_gb_shader_unbind +}; + +/** + * Shader management: + */ + +static inline struct vmw_shader * +vmw_res_to_shader(struct vmw_resource *res) +{ + return container_of(res, struct vmw_shader, res); +} + +static void vmw_hw_shader_destroy(struct vmw_resource *res) +{ + (void) vmw_gb_shader_destroy(res); +} + +static int vmw_gb_shader_init(struct vmw_private *dev_priv, + struct vmw_resource *res, + uint32_t size, + uint64_t offset, + SVGA3dShaderType type, + struct vmw_dma_buffer *byte_code, + void (*res_free) (struct vmw_resource *res)) +{ + struct vmw_shader *shader = vmw_res_to_shader(res); + int ret; + + ret = vmw_resource_init(dev_priv, res, true, + res_free, &vmw_gb_shader_func); + + + if (unlikely(ret != 0)) { + if (res_free) + res_free(res); + else + kfree(res); + return ret; + } + + res->backup_size = size; + if (byte_code) { + res->backup = vmw_dmabuf_reference(byte_code); + res->backup_offset = offset; + } + shader->size = size; + shader->type = type; + + vmw_resource_activate(res, vmw_hw_shader_destroy); + return 0; +} + +static int vmw_gb_shader_create(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct vmw_shader *shader = vmw_res_to_shader(res); + int ret; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDefineGBShader body; + } *cmd; + + if (likely(res->id != -1)) + return 0; + + ret = vmw_resource_alloc_id(res); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate a shader id.\n"); + goto out_no_id; + } + + if (unlikely(res->id >= VMWGFX_NUM_GB_SHADER)) { + ret = -EBUSY; + goto out_no_fifo; + } + + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for shader " + "creation.\n"); + ret = -ENOMEM; + goto out_no_fifo; + } + + cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SHADER; + cmd->header.size = sizeof(cmd->body); + cmd->body.shid = res->id; + cmd->body.type = shader->type; + cmd->body.sizeInBytes = shader->size; + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + (void) vmw_3d_resource_inc(dev_priv, false); + + return 0; + +out_no_fifo: + vmw_resource_release_id(res); +out_no_id: + return ret; +} + +static int vmw_gb_shader_bind(struct vmw_resource *res, + struct ttm_validate_buffer *val_buf) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBindGBShader body; + } *cmd; + struct ttm_buffer_object *bo = val_buf->bo; + + BUG_ON(bo->mem.mem_type != VMW_PL_MOB); + + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for shader " + "binding.\n"); + return -ENOMEM; + } + + cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER; + cmd->header.size = sizeof(cmd->body); + cmd->body.shid = res->id; + cmd->body.mobid = bo->mem.start; + cmd->body.offsetInBytes = 0; + res->backup_dirty = false; + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + + return 0; +} + +static int vmw_gb_shader_unbind(struct vmw_resource *res, + bool readback, + struct ttm_validate_buffer *val_buf) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdBindGBShader body; + } *cmd; + struct vmw_fence_obj *fence; + + BUG_ON(res->backup->base.mem.mem_type != VMW_PL_MOB); + + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for shader " + "unbinding.\n"); + return -ENOMEM; + } + + cmd->header.id = SVGA_3D_CMD_BIND_GB_SHADER; + cmd->header.size = sizeof(cmd->body); + cmd->body.shid = res->id; + cmd->body.mobid = SVGA3D_INVALID_ID; + cmd->body.offsetInBytes = 0; + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + + /* + * 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); + + if (likely(fence != NULL)) + vmw_fence_obj_unreference(&fence); + + return 0; +} + +static int vmw_gb_shader_destroy(struct vmw_resource *res) +{ + struct vmw_private *dev_priv = res->dev_priv; + struct { + SVGA3dCmdHeader header; + SVGA3dCmdDestroyGBShader body; + } *cmd; + + if (likely(res->id == -1)) + return 0; + + cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); + if (unlikely(cmd == NULL)) { + DRM_ERROR("Failed reserving FIFO space for shader " + "destruction.\n"); + return -ENOMEM; + } + + cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SHADER; + cmd->header.size = sizeof(cmd->body); + cmd->body.shid = res->id; + vmw_fifo_commit(dev_priv, sizeof(*cmd)); + vmw_resource_release_id(res); + vmw_3d_resource_dec(dev_priv, false); + + return 0; +} + +/** + * User-space shader management: + */ + +static struct vmw_resource * +vmw_user_shader_base_to_res(struct ttm_base_object *base) +{ + return &(container_of(base, struct vmw_user_shader, base)-> + shader.res); +} + +static void vmw_user_shader_free(struct vmw_resource *res) +{ + struct vmw_user_shader *ushader = + container_of(res, struct vmw_user_shader, shader.res); + struct vmw_private *dev_priv = res->dev_priv; + + ttm_base_object_kfree(ushader, base); + ttm_mem_global_free(vmw_mem_glob(dev_priv), + vmw_user_shader_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_shader_base_release(struct ttm_base_object **p_base) +{ + struct ttm_base_object *base = *p_base; + struct vmw_resource *res = vmw_user_shader_base_to_res(base); + + *p_base = NULL; + vmw_resource_unreference(&res); +} + +int vmw_shader_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_vmw_shader_arg *arg = (struct drm_vmw_shader_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + + return ttm_ref_object_base_unref(tfile, arg->handle, + TTM_REF_USAGE); +} + +int vmw_shader_define_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_user_shader *ushader; + struct vmw_resource *res; + struct vmw_resource *tmp; + struct drm_vmw_shader_create_arg *arg = + (struct drm_vmw_shader_create_arg *)data; + struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; + struct vmw_master *vmaster = vmw_master(file_priv->master); + struct vmw_dma_buffer *buffer = NULL; + SVGA3dShaderType shader_type; + int ret; + + if (arg->buffer_handle != SVGA3D_INVALID_ID) { + ret = vmw_user_dmabuf_lookup(tfile, arg->buffer_handle, + &buffer); + if (unlikely(ret != 0)) { + DRM_ERROR("Could not find buffer for shader " + "creation.\n"); + return ret; + } + + if ((u64)buffer->base.num_pages * PAGE_SIZE < + (u64)arg->size + (u64)arg->offset) { + DRM_ERROR("Illegal buffer- or shader size.\n"); + ret = -EINVAL; + goto out_bad_arg; + } + } + + switch (arg->shader_type) { + case drm_vmw_shader_type_vs: + shader_type = SVGA3D_SHADERTYPE_VS; + break; + case drm_vmw_shader_type_ps: + shader_type = SVGA3D_SHADERTYPE_PS; + break; + case drm_vmw_shader_type_gs: + shader_type = SVGA3D_SHADERTYPE_GS; + break; + default: + DRM_ERROR("Illegal shader type.\n"); + ret = -EINVAL; + goto out_bad_arg; + } + + /* + * Approximate idr memory usage with 128 bytes. It will be limited + * by maximum number_of shaders anyway. + */ + + if (unlikely(vmw_user_shader_size == 0)) + vmw_user_shader_size = ttm_round_pot(sizeof(*ushader)) + + 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_shader_size, + false, true); + if (unlikely(ret != 0)) { + if (ret != -ERESTARTSYS) + DRM_ERROR("Out of graphics memory for shader" + " creation.\n"); + goto out_unlock; + } + + ushader = kzalloc(sizeof(*ushader), GFP_KERNEL); + if (unlikely(ushader == NULL)) { + ttm_mem_global_free(vmw_mem_glob(dev_priv), + vmw_user_shader_size); + ret = -ENOMEM; + goto out_unlock; + } + + res = &ushader->shader.res; + ushader->base.shareable = false; + ushader->base.tfile = NULL; + + /* + * From here on, the destructor takes over resource freeing. + */ + + ret = vmw_gb_shader_init(dev_priv, res, arg->size, + arg->offset, shader_type, buffer, + vmw_user_shader_free); + if (unlikely(ret != 0)) + goto out_unlock; + + tmp = vmw_resource_reference(res); + ret = ttm_base_object_init(tfile, &ushader->base, false, + VMW_RES_SHADER, + &vmw_user_shader_base_release, NULL); + + if (unlikely(ret != 0)) { + vmw_resource_unreference(&tmp); + goto out_err; + } + + arg->shader_handle = ushader->base.hash.key; +out_err: + vmw_resource_unreference(&res); +out_unlock: + ttm_read_unlock(&vmaster->lock); +out_bad_arg: + vmw_dmabuf_unreference(&buffer); + + return ret; + +}