From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 1691 +++++++++++++++++++++++++++++++++++ 1 file changed, 1691 insertions(+) create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_drv.c') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c new file mode 100644 index 000000000..b909a3ce9 --- /dev/null +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -0,0 +1,1691 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/************************************************************************** + * + * Copyright 2009-2022 VMware, Inc., Palo Alto, CA., USA + * + * 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_devcaps.h" +#include "vmwgfx_mksstat.h" +#include "vmwgfx_binding.h" +#include "ttm_object.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define VMWGFX_DRIVER_DESC "Linux drm driver for VMware graphics devices" + +#define VMW_MIN_INITIAL_WIDTH 800 +#define VMW_MIN_INITIAL_HEIGHT 600 + +/* + * Fully encoded drm commands. Might move to vmw_drm.h + */ + +#define DRM_IOCTL_VMW_GET_PARAM \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GET_PARAM, \ + struct drm_vmw_getparam_arg) +#define DRM_IOCTL_VMW_ALLOC_DMABUF \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_ALLOC_DMABUF, \ + union drm_vmw_alloc_dmabuf_arg) +#define DRM_IOCTL_VMW_UNREF_DMABUF \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_DMABUF, \ + struct drm_vmw_unref_dmabuf_arg) +#define DRM_IOCTL_VMW_CURSOR_BYPASS \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CURSOR_BYPASS, \ + struct drm_vmw_cursor_bypass_arg) + +#define DRM_IOCTL_VMW_CONTROL_STREAM \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_CONTROL_STREAM, \ + struct drm_vmw_control_stream_arg) +#define DRM_IOCTL_VMW_CLAIM_STREAM \ + DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CLAIM_STREAM, \ + struct drm_vmw_stream_arg) +#define DRM_IOCTL_VMW_UNREF_STREAM \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_STREAM, \ + struct drm_vmw_stream_arg) + +#define DRM_IOCTL_VMW_CREATE_CONTEXT \ + DRM_IOR(DRM_COMMAND_BASE + DRM_VMW_CREATE_CONTEXT, \ + struct drm_vmw_context_arg) +#define DRM_IOCTL_VMW_UNREF_CONTEXT \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_CONTEXT, \ + struct drm_vmw_context_arg) +#define DRM_IOCTL_VMW_CREATE_SURFACE \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_SURFACE, \ + union drm_vmw_surface_create_arg) +#define DRM_IOCTL_VMW_UNREF_SURFACE \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_UNREF_SURFACE, \ + struct drm_vmw_surface_arg) +#define DRM_IOCTL_VMW_REF_SURFACE \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_REF_SURFACE, \ + union drm_vmw_surface_reference_arg) +#define DRM_IOCTL_VMW_EXECBUF \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_EXECBUF, \ + struct drm_vmw_execbuf_arg) +#define DRM_IOCTL_VMW_GET_3D_CAP \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_GET_3D_CAP, \ + struct drm_vmw_get_3d_cap_arg) +#define DRM_IOCTL_VMW_FENCE_WAIT \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_WAIT, \ + struct drm_vmw_fence_wait_arg) +#define DRM_IOCTL_VMW_FENCE_SIGNALED \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_FENCE_SIGNALED, \ + struct drm_vmw_fence_signaled_arg) +#define DRM_IOCTL_VMW_FENCE_UNREF \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_UNREF, \ + struct drm_vmw_fence_arg) +#define DRM_IOCTL_VMW_FENCE_EVENT \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_FENCE_EVENT, \ + struct drm_vmw_fence_event_arg) +#define DRM_IOCTL_VMW_PRESENT \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT, \ + struct drm_vmw_present_arg) +#define DRM_IOCTL_VMW_PRESENT_READBACK \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_PRESENT_READBACK, \ + struct drm_vmw_present_readback_arg) +#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) +#define DRM_IOCTL_VMW_GB_SURFACE_REF \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF, \ + union drm_vmw_gb_surface_reference_arg) +#define DRM_IOCTL_VMW_SYNCCPU \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_SYNCCPU, \ + struct drm_vmw_synccpu_arg) +#define DRM_IOCTL_VMW_CREATE_EXTENDED_CONTEXT \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_CREATE_EXTENDED_CONTEXT, \ + struct drm_vmw_context_arg) +#define DRM_IOCTL_VMW_GB_SURFACE_CREATE_EXT \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_CREATE_EXT, \ + union drm_vmw_gb_surface_create_ext_arg) +#define DRM_IOCTL_VMW_GB_SURFACE_REF_EXT \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_GB_SURFACE_REF_EXT, \ + union drm_vmw_gb_surface_reference_ext_arg) +#define DRM_IOCTL_VMW_MSG \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MSG, \ + struct drm_vmw_msg_arg) +#define DRM_IOCTL_VMW_MKSSTAT_RESET \ + DRM_IO(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_RESET) +#define DRM_IOCTL_VMW_MKSSTAT_ADD \ + DRM_IOWR(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_ADD, \ + struct drm_vmw_mksstat_add_arg) +#define DRM_IOCTL_VMW_MKSSTAT_REMOVE \ + DRM_IOW(DRM_COMMAND_BASE + DRM_VMW_MKSSTAT_REMOVE, \ + struct drm_vmw_mksstat_remove_arg) + +/* + * Ioctl definitions. + */ + +static const struct drm_ioctl_desc vmw_ioctls[] = { + DRM_IOCTL_DEF_DRV(VMW_GET_PARAM, vmw_getparam_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_ALLOC_DMABUF, vmw_gem_object_create_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_UNREF_DMABUF, vmw_bo_unref_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_CURSOR_BYPASS, + vmw_kms_cursor_bypass_ioctl, + DRM_MASTER), + + DRM_IOCTL_DEF_DRV(VMW_CONTROL_STREAM, vmw_overlay_ioctl, + DRM_MASTER), + DRM_IOCTL_DEF_DRV(VMW_CLAIM_STREAM, vmw_stream_claim_ioctl, + DRM_MASTER), + DRM_IOCTL_DEF_DRV(VMW_UNREF_STREAM, vmw_stream_unref_ioctl, + DRM_MASTER), + + DRM_IOCTL_DEF_DRV(VMW_CREATE_CONTEXT, vmw_context_define_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_CREATE_SURFACE, vmw_surface_define_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_REF_SURFACE, vmw_surface_reference_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_EXECBUF, vmw_execbuf_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_FENCE_WAIT, vmw_fence_obj_wait_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_FENCE_SIGNALED, + vmw_fence_obj_signaled_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_FENCE_UNREF, vmw_fence_obj_unref_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_FENCE_EVENT, vmw_fence_event_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_GET_3D_CAP, vmw_get_cap_3d_ioctl, + DRM_RENDER_ALLOW), + + /* these allow direct access to the framebuffers mark as master only */ + DRM_IOCTL_DEF_DRV(VMW_PRESENT, vmw_present_ioctl, + DRM_MASTER | DRM_AUTH), + DRM_IOCTL_DEF_DRV(VMW_PRESENT_READBACK, + vmw_present_readback_ioctl, + DRM_MASTER | DRM_AUTH), + /* + * The permissions of the below ioctl are overridden in + * vmw_generic_ioctl(). We require either + * DRM_MASTER or capable(CAP_SYS_ADMIN). + */ + DRM_IOCTL_DEF_DRV(VMW_UPDATE_LAYOUT, + vmw_kms_update_layout_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_CREATE_SHADER, + vmw_shader_define_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_UNREF_SHADER, + vmw_shader_destroy_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE, + vmw_gb_surface_define_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF, + vmw_gb_surface_reference_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_SYNCCPU, + vmw_user_bo_synccpu_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_CREATE_EXTENDED_CONTEXT, + vmw_extended_context_define_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_CREATE_EXT, + vmw_gb_surface_define_ext_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_GB_SURFACE_REF_EXT, + vmw_gb_surface_reference_ext_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_MSG, + vmw_msg_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_RESET, + vmw_mksstat_reset_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_ADD, + vmw_mksstat_add_ioctl, + DRM_RENDER_ALLOW), + DRM_IOCTL_DEF_DRV(VMW_MKSSTAT_REMOVE, + vmw_mksstat_remove_ioctl, + DRM_RENDER_ALLOW), +}; + +static const struct pci_device_id vmw_pci_id_list[] = { + { PCI_DEVICE(PCI_VENDOR_ID_VMWARE, VMWGFX_PCI_ID_SVGA2) }, + { PCI_DEVICE(PCI_VENDOR_ID_VMWARE, VMWGFX_PCI_ID_SVGA3) }, + { } +}; +MODULE_DEVICE_TABLE(pci, vmw_pci_id_list); + +static int enable_fbdev = IS_ENABLED(CONFIG_DRM_VMWGFX_FBCON); +static int vmw_restrict_iommu; +static int vmw_force_coherent; +static int vmw_restrict_dma_mask; +static int vmw_assume_16bpp; + +static int vmw_probe(struct pci_dev *, const struct pci_device_id *); +static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, + void *ptr); + +MODULE_PARM_DESC(enable_fbdev, "Enable vmwgfx fbdev"); +module_param_named(enable_fbdev, enable_fbdev, int, 0600); +MODULE_PARM_DESC(restrict_iommu, "Try to limit IOMMU usage for TTM pages"); +module_param_named(restrict_iommu, vmw_restrict_iommu, int, 0600); +MODULE_PARM_DESC(force_coherent, "Force coherent TTM pages"); +module_param_named(force_coherent, vmw_force_coherent, int, 0600); +MODULE_PARM_DESC(restrict_dma_mask, "Restrict DMA mask to 44 bits with IOMMU"); +module_param_named(restrict_dma_mask, vmw_restrict_dma_mask, int, 0600); +MODULE_PARM_DESC(assume_16bpp, "Assume 16-bpp when filtering modes"); +module_param_named(assume_16bpp, vmw_assume_16bpp, int, 0600); + + +struct bitmap_name { + uint32 value; + const char *name; +}; + +static const struct bitmap_name cap1_names[] = { + { SVGA_CAP_RECT_COPY, "rect copy" }, + { SVGA_CAP_CURSOR, "cursor" }, + { SVGA_CAP_CURSOR_BYPASS, "cursor bypass" }, + { SVGA_CAP_CURSOR_BYPASS_2, "cursor bypass 2" }, + { SVGA_CAP_8BIT_EMULATION, "8bit emulation" }, + { SVGA_CAP_ALPHA_CURSOR, "alpha cursor" }, + { SVGA_CAP_3D, "3D" }, + { SVGA_CAP_EXTENDED_FIFO, "extended fifo" }, + { SVGA_CAP_MULTIMON, "multimon" }, + { SVGA_CAP_PITCHLOCK, "pitchlock" }, + { SVGA_CAP_IRQMASK, "irq mask" }, + { SVGA_CAP_DISPLAY_TOPOLOGY, "display topology" }, + { SVGA_CAP_GMR, "gmr" }, + { SVGA_CAP_TRACES, "traces" }, + { SVGA_CAP_GMR2, "gmr2" }, + { SVGA_CAP_SCREEN_OBJECT_2, "screen object 2" }, + { SVGA_CAP_COMMAND_BUFFERS, "command buffers" }, + { SVGA_CAP_CMD_BUFFERS_2, "command buffers 2" }, + { SVGA_CAP_GBOBJECTS, "gbobject" }, + { SVGA_CAP_DX, "dx" }, + { SVGA_CAP_HP_CMD_QUEUE, "hp cmd queue" }, + { SVGA_CAP_NO_BB_RESTRICTION, "no bb restriction" }, + { SVGA_CAP_CAP2_REGISTER, "cap2 register" }, +}; + + +static const struct bitmap_name cap2_names[] = { + { SVGA_CAP2_GROW_OTABLE, "grow otable" }, + { SVGA_CAP2_INTRA_SURFACE_COPY, "intra surface copy" }, + { SVGA_CAP2_DX2, "dx2" }, + { SVGA_CAP2_GB_MEMSIZE_2, "gb memsize 2" }, + { SVGA_CAP2_SCREENDMA_REG, "screendma reg" }, + { SVGA_CAP2_OTABLE_PTDEPTH_2, "otable ptdepth2" }, + { SVGA_CAP2_NON_MS_TO_MS_STRETCHBLT, "non ms to ms stretchblt" }, + { SVGA_CAP2_CURSOR_MOB, "cursor mob" }, + { SVGA_CAP2_MSHINT, "mshint" }, + { SVGA_CAP2_CB_MAX_SIZE_4MB, "cb max size 4mb" }, + { SVGA_CAP2_DX3, "dx3" }, + { SVGA_CAP2_FRAME_TYPE, "frame type" }, + { SVGA_CAP2_COTABLE_COPY, "cotable copy" }, + { SVGA_CAP2_TRACE_FULL_FB, "trace full fb" }, + { SVGA_CAP2_EXTRA_REGS, "extra regs" }, + { SVGA_CAP2_LO_STAGING, "lo staging" }, +}; + +static void vmw_print_bitmap(struct drm_device *drm, + const char *prefix, uint32_t bitmap, + const struct bitmap_name *bnames, + uint32_t num_names) +{ + char buf[512]; + uint32_t i; + uint32_t offset = 0; + for (i = 0; i < num_names; ++i) { + if ((bitmap & bnames[i].value) != 0) { + offset += snprintf(buf + offset, + ARRAY_SIZE(buf) - offset, + "%s, ", bnames[i].name); + bitmap &= ~bnames[i].value; + } + } + + drm_info(drm, "%s: %s\n", prefix, buf); + if (bitmap != 0) + drm_dbg(drm, "%s: unknown enums: %x\n", prefix, bitmap); +} + + +static void vmw_print_sm_type(struct vmw_private *dev_priv) +{ + static const char *names[] = { + [VMW_SM_LEGACY] = "Legacy", + [VMW_SM_4] = "SM4", + [VMW_SM_4_1] = "SM4_1", + [VMW_SM_5] = "SM_5", + [VMW_SM_5_1X] = "SM_5_1X", + [VMW_SM_MAX] = "Invalid" + }; + BUILD_BUG_ON(ARRAY_SIZE(names) != (VMW_SM_MAX + 1)); + drm_info(&dev_priv->drm, "Available shader model: %s.\n", + names[dev_priv->sm_type]); +} + +/** + * vmw_dummy_query_bo_create - create a bo to hold a dummy query result + * + * @dev_priv: A device private structure. + * + * This function creates a small buffer object that holds the query + * result for dummy queries emitted as query barriers. + * The function will then map the first page and initialize a pending + * occlusion query result structure, Finally it will unmap the buffer. + * No interruptible waits are done within this function. + * + * Returns an error if bo creation or initialization fails. + */ +static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv) +{ + int ret; + struct vmw_buffer_object *vbo; + struct ttm_bo_kmap_obj map; + volatile SVGA3dQueryResult *result; + bool dummy; + + /* + * Create the vbo as pinned, so that a tryreserve will + * immediately succeed. This is because we're the only + * user of the bo currently. + */ + ret = vmw_bo_create(dev_priv, PAGE_SIZE, + &vmw_sys_placement, false, true, + &vmw_bo_bo_free, &vbo); + if (unlikely(ret != 0)) + return ret; + + ret = ttm_bo_reserve(&vbo->base, false, true, NULL); + BUG_ON(ret != 0); + vmw_bo_pin_reserved(vbo, true); + + ret = ttm_bo_kmap(&vbo->base, 0, 1, &map); + if (likely(ret == 0)) { + result = ttm_kmap_obj_virtual(&map, &dummy); + result->totalSize = sizeof(*result); + result->state = SVGA3D_QUERYSTATE_PENDING; + result->result32 = 0xff; + ttm_bo_kunmap(&map); + } + vmw_bo_pin_reserved(vbo, false); + ttm_bo_unreserve(&vbo->base); + + if (unlikely(ret != 0)) { + DRM_ERROR("Dummy query buffer map failed.\n"); + vmw_bo_unreference(&vbo); + } else + dev_priv->dummy_query_bo = vbo; + + return ret; +} + +static int vmw_device_init(struct vmw_private *dev_priv) +{ + bool uses_fb_traces = false; + + dev_priv->enable_state = vmw_read(dev_priv, SVGA_REG_ENABLE); + dev_priv->config_done_state = vmw_read(dev_priv, SVGA_REG_CONFIG_DONE); + dev_priv->traces_state = vmw_read(dev_priv, SVGA_REG_TRACES); + + vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE | + SVGA_REG_ENABLE_HIDE); + + uses_fb_traces = !vmw_cmd_supported(dev_priv) && + (dev_priv->capabilities & SVGA_CAP_TRACES) != 0; + + vmw_write(dev_priv, SVGA_REG_TRACES, uses_fb_traces); + dev_priv->fifo = vmw_fifo_create(dev_priv); + if (IS_ERR(dev_priv->fifo)) { + int err = PTR_ERR(dev_priv->fifo); + dev_priv->fifo = NULL; + return err; + } else if (!dev_priv->fifo) { + vmw_write(dev_priv, SVGA_REG_CONFIG_DONE, 1); + } + + dev_priv->last_read_seqno = vmw_fence_read(dev_priv); + atomic_set(&dev_priv->marker_seq, dev_priv->last_read_seqno); + return 0; +} + +static void vmw_device_fini(struct vmw_private *vmw) +{ + /* + * Legacy sync + */ + vmw_write(vmw, SVGA_REG_SYNC, SVGA_SYNC_GENERIC); + while (vmw_read(vmw, SVGA_REG_BUSY) != 0) + ; + + vmw->last_read_seqno = vmw_fence_read(vmw); + + vmw_write(vmw, SVGA_REG_CONFIG_DONE, + vmw->config_done_state); + vmw_write(vmw, SVGA_REG_ENABLE, + vmw->enable_state); + vmw_write(vmw, SVGA_REG_TRACES, + vmw->traces_state); + + vmw_fifo_destroy(vmw); +} + +/** + * vmw_request_device_late - Perform late device setup + * + * @dev_priv: Pointer to device private. + * + * This function performs setup of otables and enables large command + * buffer submission. These tasks are split out to a separate function + * because it reverts vmw_release_device_early and is intended to be used + * by an error path in the hibernation code. + */ +static int vmw_request_device_late(struct vmw_private *dev_priv) +{ + int ret; + + if (dev_priv->has_mob) { + ret = vmw_otables_setup(dev_priv); + if (unlikely(ret != 0)) { + DRM_ERROR("Unable to initialize " + "guest Memory OBjects.\n"); + return ret; + } + } + + if (dev_priv->cman) { + ret = vmw_cmdbuf_set_pool_size(dev_priv->cman, 256*4096); + if (ret) { + struct vmw_cmdbuf_man *man = dev_priv->cman; + + dev_priv->cman = NULL; + vmw_cmdbuf_man_destroy(man); + } + } + + return 0; +} + +static int vmw_request_device(struct vmw_private *dev_priv) +{ + int ret; + + ret = vmw_device_init(dev_priv); + if (unlikely(ret != 0)) { + DRM_ERROR("Unable to initialize the device.\n"); + return ret; + } + vmw_fence_fifo_up(dev_priv->fman); + dev_priv->cman = vmw_cmdbuf_man_create(dev_priv); + if (IS_ERR(dev_priv->cman)) { + dev_priv->cman = NULL; + dev_priv->sm_type = VMW_SM_LEGACY; + } + + ret = vmw_request_device_late(dev_priv); + if (ret) + goto out_no_mob; + + ret = vmw_dummy_query_bo_create(dev_priv); + if (unlikely(ret != 0)) + goto out_no_query_bo; + + return 0; + +out_no_query_bo: + if (dev_priv->cman) + vmw_cmdbuf_remove_pool(dev_priv->cman); + if (dev_priv->has_mob) { + struct ttm_resource_manager *man; + + man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB); + ttm_resource_manager_evict_all(&dev_priv->bdev, man); + vmw_otables_takedown(dev_priv); + } + if (dev_priv->cman) + vmw_cmdbuf_man_destroy(dev_priv->cman); +out_no_mob: + vmw_fence_fifo_down(dev_priv->fman); + vmw_device_fini(dev_priv); + return ret; +} + +/** + * vmw_release_device_early - Early part of fifo takedown. + * + * @dev_priv: Pointer to device private struct. + * + * This is the first part of command submission takedown, to be called before + * buffer management is taken down. + */ +static void vmw_release_device_early(struct vmw_private *dev_priv) +{ + /* + * Previous destructions should've released + * the pinned bo. + */ + + BUG_ON(dev_priv->pinned_bo != NULL); + + vmw_bo_unreference(&dev_priv->dummy_query_bo); + if (dev_priv->cman) + vmw_cmdbuf_remove_pool(dev_priv->cman); + + if (dev_priv->has_mob) { + struct ttm_resource_manager *man; + + man = ttm_manager_type(&dev_priv->bdev, VMW_PL_MOB); + ttm_resource_manager_evict_all(&dev_priv->bdev, man); + vmw_otables_takedown(dev_priv); + } +} + +/** + * vmw_release_device_late - Late part of fifo takedown. + * + * @dev_priv: Pointer to device private struct. + * + * This is the last part of the command submission takedown, to be called when + * command submission is no longer needed. It may wait on pending fences. + */ +static void vmw_release_device_late(struct vmw_private *dev_priv) +{ + vmw_fence_fifo_down(dev_priv->fman); + if (dev_priv->cman) + vmw_cmdbuf_man_destroy(dev_priv->cman); + + vmw_device_fini(dev_priv); +} + +/* + * Sets the initial_[width|height] fields on the given vmw_private. + * + * It does so by reading SVGA_REG_[WIDTH|HEIGHT] regs and then + * clamping the value to fb_max_[width|height] fields and the + * VMW_MIN_INITIAL_[WIDTH|HEIGHT]. + * If the values appear to be invalid, set them to + * VMW_MIN_INITIAL_[WIDTH|HEIGHT]. + */ +static void vmw_get_initial_size(struct vmw_private *dev_priv) +{ + uint32_t width; + uint32_t height; + + width = vmw_read(dev_priv, SVGA_REG_WIDTH); + height = vmw_read(dev_priv, SVGA_REG_HEIGHT); + + width = max_t(uint32_t, width, VMW_MIN_INITIAL_WIDTH); + height = max_t(uint32_t, height, VMW_MIN_INITIAL_HEIGHT); + + if (width > dev_priv->fb_max_width || + height > dev_priv->fb_max_height) { + + /* + * This is a host error and shouldn't occur. + */ + + width = VMW_MIN_INITIAL_WIDTH; + height = VMW_MIN_INITIAL_HEIGHT; + } + + dev_priv->initial_width = width; + dev_priv->initial_height = height; +} + +/** + * vmw_dma_select_mode - Determine how DMA mappings should be set up for this + * system. + * + * @dev_priv: Pointer to a struct vmw_private + * + * This functions tries to determine what actions need to be taken by the + * driver to make system pages visible to the device. + * If this function decides that DMA is not possible, it returns -EINVAL. + * The driver may then try to disable features of the device that require + * DMA. + */ +static int vmw_dma_select_mode(struct vmw_private *dev_priv) +{ + static const char *names[vmw_dma_map_max] = { + [vmw_dma_alloc_coherent] = "Using coherent TTM pages.", + [vmw_dma_map_populate] = "Caching DMA mappings.", + [vmw_dma_map_bind] = "Giving up DMA mappings early."}; + + /* TTM currently doesn't fully support SEV encryption. */ + if (cc_platform_has(CC_ATTR_MEM_ENCRYPT)) + return -EINVAL; + + if (vmw_force_coherent) + dev_priv->map_mode = vmw_dma_alloc_coherent; + else if (vmw_restrict_iommu) + dev_priv->map_mode = vmw_dma_map_bind; + else + dev_priv->map_mode = vmw_dma_map_populate; + + drm_info(&dev_priv->drm, + "DMA map mode: %s\n", names[dev_priv->map_mode]); + return 0; +} + +/** + * vmw_dma_masks - set required page- and dma masks + * + * @dev_priv: Pointer to struct drm-device + * + * With 32-bit we can only handle 32 bit PFNs. Optionally set that + * restriction also for 64-bit systems. + */ +static int vmw_dma_masks(struct vmw_private *dev_priv) +{ + struct drm_device *dev = &dev_priv->drm; + int ret = 0; + + ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64)); + if (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask) { + drm_info(&dev_priv->drm, + "Restricting DMA addresses to 44 bits.\n"); + return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44)); + } + + return ret; +} + +static int vmw_vram_manager_init(struct vmw_private *dev_priv) +{ + int ret; + ret = ttm_range_man_init(&dev_priv->bdev, TTM_PL_VRAM, false, + dev_priv->vram_size >> PAGE_SHIFT); + ttm_resource_manager_set_used(ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM), false); + return ret; +} + +static void vmw_vram_manager_fini(struct vmw_private *dev_priv) +{ + ttm_range_man_fini(&dev_priv->bdev, TTM_PL_VRAM); +} + +static int vmw_setup_pci_resources(struct vmw_private *dev, + u32 pci_id) +{ + resource_size_t rmmio_start; + resource_size_t rmmio_size; + resource_size_t fifo_start; + resource_size_t fifo_size; + int ret; + struct pci_dev *pdev = to_pci_dev(dev->drm.dev); + + pci_set_master(pdev); + + ret = pci_request_regions(pdev, "vmwgfx probe"); + if (ret) + return ret; + + dev->pci_id = pci_id; + if (pci_id == VMWGFX_PCI_ID_SVGA3) { + rmmio_start = pci_resource_start(pdev, 0); + rmmio_size = pci_resource_len(pdev, 0); + dev->vram_start = pci_resource_start(pdev, 2); + dev->vram_size = pci_resource_len(pdev, 2); + + drm_info(&dev->drm, + "Register MMIO at 0x%pa size is %llu kiB\n", + &rmmio_start, (uint64_t)rmmio_size / 1024); + dev->rmmio = devm_ioremap(dev->drm.dev, + rmmio_start, + rmmio_size); + if (!dev->rmmio) { + drm_err(&dev->drm, + "Failed mapping registers mmio memory.\n"); + pci_release_regions(pdev); + return -ENOMEM; + } + } else if (pci_id == VMWGFX_PCI_ID_SVGA2) { + dev->io_start = pci_resource_start(pdev, 0); + dev->vram_start = pci_resource_start(pdev, 1); + dev->vram_size = pci_resource_len(pdev, 1); + fifo_start = pci_resource_start(pdev, 2); + fifo_size = pci_resource_len(pdev, 2); + + drm_info(&dev->drm, + "FIFO at %pa size is %llu kiB\n", + &fifo_start, (uint64_t)fifo_size / 1024); + dev->fifo_mem = devm_memremap(dev->drm.dev, + fifo_start, + fifo_size, + MEMREMAP_WB); + + if (IS_ERR(dev->fifo_mem)) { + drm_err(&dev->drm, + "Failed mapping FIFO memory.\n"); + pci_release_regions(pdev); + return PTR_ERR(dev->fifo_mem); + } + } else { + pci_release_regions(pdev); + return -EINVAL; + } + + /* + * This is approximate size of the vram, the exact size will only + * be known after we read SVGA_REG_VRAM_SIZE. The PCI resource + * size will be equal to or bigger than the size reported by + * SVGA_REG_VRAM_SIZE. + */ + drm_info(&dev->drm, + "VRAM at %pa size is %llu kiB\n", + &dev->vram_start, (uint64_t)dev->vram_size / 1024); + + return 0; +} + +static int vmw_detect_version(struct vmw_private *dev) +{ + uint32_t svga_id; + + vmw_write(dev, SVGA_REG_ID, vmw_is_svga_v3(dev) ? + SVGA_ID_3 : SVGA_ID_2); + svga_id = vmw_read(dev, SVGA_REG_ID); + if (svga_id != SVGA_ID_2 && svga_id != SVGA_ID_3) { + drm_err(&dev->drm, + "Unsupported SVGA ID 0x%x on chipset 0x%x\n", + svga_id, dev->pci_id); + return -ENOSYS; + } + BUG_ON(vmw_is_svga_v3(dev) && (svga_id != SVGA_ID_3)); + drm_info(&dev->drm, + "Running on SVGA version %d.\n", (svga_id & 0xff)); + return 0; +} + +static void vmw_write_driver_id(struct vmw_private *dev) +{ + if ((dev->capabilities2 & SVGA_CAP2_DX2) != 0) { + vmw_write(dev, SVGA_REG_GUEST_DRIVER_ID, + SVGA_REG_GUEST_DRIVER_ID_LINUX); + + vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION1, + LINUX_VERSION_MAJOR << 24 | + LINUX_VERSION_PATCHLEVEL << 16 | + LINUX_VERSION_SUBLEVEL); + vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION2, + VMWGFX_DRIVER_MAJOR << 24 | + VMWGFX_DRIVER_MINOR << 16 | + VMWGFX_DRIVER_PATCHLEVEL); + vmw_write(dev, SVGA_REG_GUEST_DRIVER_VERSION3, 0); + + vmw_write(dev, SVGA_REG_GUEST_DRIVER_ID, + SVGA_REG_GUEST_DRIVER_ID_SUBMIT); + } +} + +static void vmw_sw_context_init(struct vmw_private *dev_priv) +{ + struct vmw_sw_context *sw_context = &dev_priv->ctx; + + hash_init(sw_context->res_ht); +} + +static void vmw_sw_context_fini(struct vmw_private *dev_priv) +{ + struct vmw_sw_context *sw_context = &dev_priv->ctx; + + vfree(sw_context->cmd_bounce); + if (sw_context->staged_bindings) + vmw_binding_state_free(sw_context->staged_bindings); +} + +static int vmw_driver_load(struct vmw_private *dev_priv, u32 pci_id) +{ + int ret; + enum vmw_res_type i; + bool refuse_dma = false; + struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev); + + dev_priv->drm.dev_private = dev_priv; + + vmw_sw_context_init(dev_priv); + + mutex_init(&dev_priv->cmdbuf_mutex); + mutex_init(&dev_priv->binding_mutex); + spin_lock_init(&dev_priv->resource_lock); + spin_lock_init(&dev_priv->hw_lock); + spin_lock_init(&dev_priv->waiter_lock); + spin_lock_init(&dev_priv->cursor_lock); + + ret = vmw_setup_pci_resources(dev_priv, pci_id); + if (ret) + return ret; + ret = vmw_detect_version(dev_priv); + if (ret) + goto out_no_pci_or_version; + + + for (i = vmw_res_context; i < vmw_res_max; ++i) { + idr_init_base(&dev_priv->res_idr[i], 1); + INIT_LIST_HEAD(&dev_priv->res_lru[i]); + } + + init_waitqueue_head(&dev_priv->fence_queue); + init_waitqueue_head(&dev_priv->fifo_queue); + dev_priv->fence_queue_waiters = 0; + dev_priv->fifo_queue_waiters = 0; + + dev_priv->used_memory_size = 0; + + dev_priv->assume_16bpp = !!vmw_assume_16bpp; + + dev_priv->enable_fb = enable_fbdev; + + + dev_priv->capabilities = vmw_read(dev_priv, SVGA_REG_CAPABILITIES); + vmw_print_bitmap(&dev_priv->drm, "Capabilities", + dev_priv->capabilities, + cap1_names, ARRAY_SIZE(cap1_names)); + if (dev_priv->capabilities & SVGA_CAP_CAP2_REGISTER) { + dev_priv->capabilities2 = vmw_read(dev_priv, SVGA_REG_CAP2); + vmw_print_bitmap(&dev_priv->drm, "Capabilities2", + dev_priv->capabilities2, + cap2_names, ARRAY_SIZE(cap2_names)); + } + + ret = vmw_dma_select_mode(dev_priv); + if (unlikely(ret != 0)) { + drm_info(&dev_priv->drm, + "Restricting capabilities since DMA not available.\n"); + refuse_dma = true; + if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) + drm_info(&dev_priv->drm, + "Disabling 3D acceleration.\n"); + } + + dev_priv->vram_size = vmw_read(dev_priv, SVGA_REG_VRAM_SIZE); + dev_priv->fifo_mem_size = vmw_read(dev_priv, SVGA_REG_MEM_SIZE); + dev_priv->fb_max_width = vmw_read(dev_priv, SVGA_REG_MAX_WIDTH); + dev_priv->fb_max_height = vmw_read(dev_priv, SVGA_REG_MAX_HEIGHT); + + vmw_get_initial_size(dev_priv); + + if (dev_priv->capabilities & SVGA_CAP_GMR2) { + dev_priv->max_gmr_ids = + vmw_read(dev_priv, SVGA_REG_GMR_MAX_IDS); + dev_priv->max_gmr_pages = + vmw_read(dev_priv, SVGA_REG_GMRS_MAX_PAGES); + dev_priv->memory_size = + vmw_read(dev_priv, SVGA_REG_MEMORY_SIZE); + dev_priv->memory_size -= dev_priv->vram_size; + } else { + /* + * An arbitrary limit of 512MiB on surface + * memory. But all HWV8 hardware supports GMR2. + */ + dev_priv->memory_size = 512*1024*1024; + } + dev_priv->max_mob_pages = 0; + dev_priv->max_mob_size = 0; + if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) { + uint64_t mem_size; + + if (dev_priv->capabilities2 & SVGA_CAP2_GB_MEMSIZE_2) + mem_size = vmw_read(dev_priv, + SVGA_REG_GBOBJECT_MEM_SIZE_KB); + else + mem_size = + vmw_read(dev_priv, + SVGA_REG_SUGGESTED_GBOBJECT_MEM_SIZE_KB); + + /* + * Workaround for low memory 2D VMs to compensate for the + * allocation taken by fbdev + */ + if (!(dev_priv->capabilities & SVGA_CAP_3D)) + mem_size *= 3; + + dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE; + dev_priv->max_primary_mem = + vmw_read(dev_priv, SVGA_REG_MAX_PRIMARY_MEM); + dev_priv->max_mob_size = + vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE); + dev_priv->stdu_max_width = + vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_WIDTH); + dev_priv->stdu_max_height = + vmw_read(dev_priv, SVGA_REG_SCREENTARGET_MAX_HEIGHT); + + vmw_write(dev_priv, SVGA_REG_DEV_CAP, + SVGA3D_DEVCAP_MAX_TEXTURE_WIDTH); + dev_priv->texture_max_width = vmw_read(dev_priv, + SVGA_REG_DEV_CAP); + vmw_write(dev_priv, SVGA_REG_DEV_CAP, + SVGA3D_DEVCAP_MAX_TEXTURE_HEIGHT); + dev_priv->texture_max_height = vmw_read(dev_priv, + SVGA_REG_DEV_CAP); + } else { + dev_priv->texture_max_width = 8192; + dev_priv->texture_max_height = 8192; + dev_priv->max_primary_mem = dev_priv->vram_size; + } + drm_info(&dev_priv->drm, + "Legacy memory limits: VRAM = %llu kB, FIFO = %llu kB, surface = %u kB\n", + (u64)dev_priv->vram_size / 1024, + (u64)dev_priv->fifo_mem_size / 1024, + dev_priv->memory_size / 1024); + + drm_info(&dev_priv->drm, + "MOB limits: max mob size = %u kB, max mob pages = %u\n", + dev_priv->max_mob_size / 1024, dev_priv->max_mob_pages); + + ret = vmw_dma_masks(dev_priv); + if (unlikely(ret != 0)) + goto out_err0; + + dma_set_max_seg_size(dev_priv->drm.dev, U32_MAX); + + if (dev_priv->capabilities & SVGA_CAP_GMR2) { + drm_info(&dev_priv->drm, + "Max GMR ids is %u\n", + (unsigned)dev_priv->max_gmr_ids); + drm_info(&dev_priv->drm, + "Max number of GMR pages is %u\n", + (unsigned)dev_priv->max_gmr_pages); + } + drm_info(&dev_priv->drm, + "Maximum display memory size is %llu kiB\n", + (uint64_t)dev_priv->max_primary_mem / 1024); + + /* Need mmio memory to check for fifo pitchlock cap. */ + if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) && + !(dev_priv->capabilities & SVGA_CAP_PITCHLOCK) && + !vmw_fifo_have_pitchlock(dev_priv)) { + ret = -ENOSYS; + DRM_ERROR("Hardware has no pitchlock\n"); + goto out_err0; + } + + dev_priv->tdev = ttm_object_device_init(&vmw_prime_dmabuf_ops); + + if (unlikely(dev_priv->tdev == NULL)) { + drm_err(&dev_priv->drm, + "Unable to initialize TTM object management.\n"); + ret = -ENOMEM; + goto out_err0; + } + + if (dev_priv->capabilities & SVGA_CAP_IRQMASK) { + ret = vmw_irq_install(dev_priv); + if (ret != 0) { + drm_err(&dev_priv->drm, + "Failed installing irq: %d\n", ret); + goto out_no_irq; + } + } + + dev_priv->fman = vmw_fence_manager_init(dev_priv); + if (unlikely(dev_priv->fman == NULL)) { + ret = -ENOMEM; + goto out_no_fman; + } + + ret = ttm_device_init(&dev_priv->bdev, &vmw_bo_driver, + dev_priv->drm.dev, + dev_priv->drm.anon_inode->i_mapping, + dev_priv->drm.vma_offset_manager, + dev_priv->map_mode == vmw_dma_alloc_coherent, + false); + if (unlikely(ret != 0)) { + drm_err(&dev_priv->drm, + "Failed initializing TTM buffer object driver.\n"); + goto out_no_bdev; + } + + /* + * Enable VRAM, but initially don't use it until SVGA is enabled and + * unhidden. + */ + + ret = vmw_vram_manager_init(dev_priv); + if (unlikely(ret != 0)) { + drm_err(&dev_priv->drm, + "Failed initializing memory manager for VRAM.\n"); + goto out_no_vram; + } + + ret = vmw_devcaps_create(dev_priv); + if (unlikely(ret != 0)) { + drm_err(&dev_priv->drm, + "Failed initializing device caps.\n"); + goto out_no_vram; + } + + /* + * "Guest Memory Regions" is an aperture like feature with + * one slot per bo. There is an upper limit of the number of + * slots as well as the bo size. + */ + dev_priv->has_gmr = true; + /* TODO: This is most likely not correct */ + if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) || + refuse_dma || + vmw_gmrid_man_init(dev_priv, VMW_PL_GMR) != 0) { + drm_info(&dev_priv->drm, + "No GMR memory available. " + "Graphics memory resources are very limited.\n"); + dev_priv->has_gmr = false; + } + + if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS && !refuse_dma) { + dev_priv->has_mob = true; + + if (vmw_gmrid_man_init(dev_priv, VMW_PL_MOB) != 0) { + drm_info(&dev_priv->drm, + "No MOB memory available. " + "3D will be disabled.\n"); + dev_priv->has_mob = false; + } + if (vmw_sys_man_init(dev_priv) != 0) { + drm_info(&dev_priv->drm, + "No MOB page table memory available. " + "3D will be disabled.\n"); + dev_priv->has_mob = false; + } + } + + if (dev_priv->has_mob && (dev_priv->capabilities & SVGA_CAP_DX)) { + if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_DXCONTEXT)) + dev_priv->sm_type = VMW_SM_4; + } + + /* SVGA_CAP2_DX2 (DefineGBSurface_v3) is needed for SM4_1 support */ + if (has_sm4_context(dev_priv) && + (dev_priv->capabilities2 & SVGA_CAP2_DX2)) { + if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM41)) + dev_priv->sm_type = VMW_SM_4_1; + if (has_sm4_1_context(dev_priv) && + (dev_priv->capabilities2 & SVGA_CAP2_DX3)) { + if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_SM5)) { + dev_priv->sm_type = VMW_SM_5; + if (vmw_devcap_get(dev_priv, SVGA3D_DEVCAP_GL43)) + dev_priv->sm_type = VMW_SM_5_1X; + } + } + } + + ret = vmw_kms_init(dev_priv); + if (unlikely(ret != 0)) + goto out_no_kms; + vmw_overlay_init(dev_priv); + + ret = vmw_request_device(dev_priv); + if (ret) + goto out_no_fifo; + + vmw_print_sm_type(dev_priv); + vmw_host_printf("vmwgfx: Module Version: %d.%d.%d (kernel: %s)", + VMWGFX_DRIVER_MAJOR, VMWGFX_DRIVER_MINOR, + VMWGFX_DRIVER_PATCHLEVEL, UTS_RELEASE); + vmw_write_driver_id(dev_priv); + + if (dev_priv->enable_fb) { + vmw_fifo_resource_inc(dev_priv); + vmw_svga_enable(dev_priv); + vmw_fb_init(dev_priv); + } + + dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier; + register_pm_notifier(&dev_priv->pm_nb); + + return 0; + +out_no_fifo: + vmw_overlay_close(dev_priv); + vmw_kms_close(dev_priv); +out_no_kms: + if (dev_priv->has_mob) { + vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB); + vmw_sys_man_fini(dev_priv); + } + if (dev_priv->has_gmr) + vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR); + vmw_devcaps_destroy(dev_priv); + vmw_vram_manager_fini(dev_priv); +out_no_vram: + ttm_device_fini(&dev_priv->bdev); +out_no_bdev: + vmw_fence_manager_takedown(dev_priv->fman); +out_no_fman: + if (dev_priv->capabilities & SVGA_CAP_IRQMASK) + vmw_irq_uninstall(&dev_priv->drm); +out_no_irq: + ttm_object_device_release(&dev_priv->tdev); +out_err0: + for (i = vmw_res_context; i < vmw_res_max; ++i) + idr_destroy(&dev_priv->res_idr[i]); + + if (dev_priv->ctx.staged_bindings) + vmw_binding_state_free(dev_priv->ctx.staged_bindings); +out_no_pci_or_version: + pci_release_regions(pdev); + return ret; +} + +static void vmw_driver_unload(struct drm_device *dev) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct pci_dev *pdev = to_pci_dev(dev->dev); + enum vmw_res_type i; + + unregister_pm_notifier(&dev_priv->pm_nb); + + vmw_sw_context_fini(dev_priv); + if (dev_priv->enable_fb) { + vmw_fb_off(dev_priv); + vmw_fb_close(dev_priv); + vmw_fifo_resource_dec(dev_priv); + vmw_svga_disable(dev_priv); + } + + vmw_kms_close(dev_priv); + vmw_overlay_close(dev_priv); + + if (dev_priv->has_gmr) + vmw_gmrid_man_fini(dev_priv, VMW_PL_GMR); + + vmw_release_device_early(dev_priv); + if (dev_priv->has_mob) { + vmw_gmrid_man_fini(dev_priv, VMW_PL_MOB); + vmw_sys_man_fini(dev_priv); + } + vmw_devcaps_destroy(dev_priv); + vmw_vram_manager_fini(dev_priv); + ttm_device_fini(&dev_priv->bdev); + vmw_release_device_late(dev_priv); + vmw_fence_manager_takedown(dev_priv->fman); + if (dev_priv->capabilities & SVGA_CAP_IRQMASK) + vmw_irq_uninstall(&dev_priv->drm); + + ttm_object_device_release(&dev_priv->tdev); + + for (i = vmw_res_context; i < vmw_res_max; ++i) + idr_destroy(&dev_priv->res_idr[i]); + + vmw_mksstat_remove_all(dev_priv); + + pci_release_regions(pdev); +} + +static void vmw_postclose(struct drm_device *dev, + struct drm_file *file_priv) +{ + struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); + + ttm_object_file_release(&vmw_fp->tfile); + kfree(vmw_fp); +} + +static int vmw_driver_open(struct drm_device *dev, struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + struct vmw_fpriv *vmw_fp; + int ret = -ENOMEM; + + vmw_fp = kzalloc(sizeof(*vmw_fp), GFP_KERNEL); + if (unlikely(!vmw_fp)) + return ret; + + vmw_fp->tfile = ttm_object_file_init(dev_priv->tdev); + if (unlikely(vmw_fp->tfile == NULL)) + goto out_no_tfile; + + file_priv->driver_priv = vmw_fp; + + return 0; + +out_no_tfile: + kfree(vmw_fp); + return ret; +} + +static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg, + long (*ioctl_func)(struct file *, unsigned int, + unsigned long)) +{ + struct drm_file *file_priv = filp->private_data; + struct drm_device *dev = file_priv->minor->dev; + unsigned int nr = DRM_IOCTL_NR(cmd); + unsigned int flags; + + /* + * Do extra checking on driver private ioctls. + */ + + if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) + && (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls)) { + const struct drm_ioctl_desc *ioctl = + &vmw_ioctls[nr - DRM_COMMAND_BASE]; + + if (nr == DRM_COMMAND_BASE + DRM_VMW_EXECBUF) { + return ioctl_func(filp, cmd, arg); + } else if (nr == DRM_COMMAND_BASE + DRM_VMW_UPDATE_LAYOUT) { + if (!drm_is_current_master(file_priv) && + !capable(CAP_SYS_ADMIN)) + return -EACCES; + } + + if (unlikely(ioctl->cmd != cmd)) + goto out_io_encoding; + + flags = ioctl->flags; + } else if (!drm_ioctl_flags(nr, &flags)) + return -EINVAL; + + return ioctl_func(filp, cmd, arg); + +out_io_encoding: + DRM_ERROR("Invalid command format, ioctl %d\n", + nr - DRM_COMMAND_BASE); + + return -EINVAL; +} + +static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + return vmw_generic_ioctl(filp, cmd, arg, &drm_ioctl); +} + +#ifdef CONFIG_COMPAT +static long vmw_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg) +{ + return vmw_generic_ioctl(filp, cmd, arg, &drm_compat_ioctl); +} +#endif + +static void vmw_master_set(struct drm_device *dev, + struct drm_file *file_priv, + bool from_open) +{ + /* + * Inform a new master that the layout may have changed while + * it was gone. + */ + if (!from_open) + drm_sysfs_hotplug_event(dev); +} + +static void vmw_master_drop(struct drm_device *dev, + struct drm_file *file_priv) +{ + struct vmw_private *dev_priv = vmw_priv(dev); + + vmw_kms_legacy_hotspot_clear(dev_priv); + if (!dev_priv->enable_fb) + vmw_svga_disable(dev_priv); +} + +/** + * __vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM. + * + * @dev_priv: Pointer to device private struct. + * Needs the reservation sem to be held in non-exclusive mode. + */ +static void __vmw_svga_enable(struct vmw_private *dev_priv) +{ + struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM); + + if (!ttm_resource_manager_used(man)) { + vmw_write(dev_priv, SVGA_REG_ENABLE, SVGA_REG_ENABLE_ENABLE); + ttm_resource_manager_set_used(man, true); + } +} + +/** + * vmw_svga_enable - Enable SVGA mode, FIFO and use of VRAM. + * + * @dev_priv: Pointer to device private struct. + */ +void vmw_svga_enable(struct vmw_private *dev_priv) +{ + __vmw_svga_enable(dev_priv); +} + +/** + * __vmw_svga_disable - Disable SVGA mode and use of VRAM. + * + * @dev_priv: Pointer to device private struct. + * Needs the reservation sem to be held in exclusive mode. + * Will not empty VRAM. VRAM must be emptied by caller. + */ +static void __vmw_svga_disable(struct vmw_private *dev_priv) +{ + struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM); + + if (ttm_resource_manager_used(man)) { + ttm_resource_manager_set_used(man, false); + vmw_write(dev_priv, SVGA_REG_ENABLE, + SVGA_REG_ENABLE_HIDE | + SVGA_REG_ENABLE_ENABLE); + } +} + +/** + * vmw_svga_disable - Disable SVGA_MODE, and use of VRAM. Keep the fifo + * running. + * + * @dev_priv: Pointer to device private struct. + * Will empty VRAM. + */ +void vmw_svga_disable(struct vmw_private *dev_priv) +{ + struct ttm_resource_manager *man = ttm_manager_type(&dev_priv->bdev, TTM_PL_VRAM); + /* + * Disabling SVGA will turn off device modesetting capabilities, so + * notify KMS about that so that it doesn't cache atomic state that + * isn't valid anymore, for example crtcs turned on. + * Strictly we'd want to do this under the SVGA lock (or an SVGA mutex), + * but vmw_kms_lost_device() takes the reservation sem and thus we'll + * end up with lock order reversal. Thus, a master may actually perform + * a new modeset just after we call vmw_kms_lost_device() and race with + * vmw_svga_disable(), but that should at worst cause atomic KMS state + * to be inconsistent with the device, causing modesetting problems. + * + */ + vmw_kms_lost_device(&dev_priv->drm); + if (ttm_resource_manager_used(man)) { + if (ttm_resource_manager_evict_all(&dev_priv->bdev, man)) + DRM_ERROR("Failed evicting VRAM buffers.\n"); + ttm_resource_manager_set_used(man, false); + vmw_write(dev_priv, SVGA_REG_ENABLE, + SVGA_REG_ENABLE_HIDE | + SVGA_REG_ENABLE_ENABLE); + } +} + +static void vmw_remove(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + + drm_dev_unregister(dev); + vmw_driver_unload(dev); +} + +static void vmw_debugfs_resource_managers_init(struct vmw_private *vmw) +{ + struct drm_minor *minor = vmw->drm.primary; + struct dentry *root = minor->debugfs_root; + + ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, TTM_PL_SYSTEM), + root, "system_ttm"); + ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, TTM_PL_VRAM), + root, "vram_ttm"); + ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_GMR), + root, "gmr_ttm"); + ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_MOB), + root, "mob_ttm"); + ttm_resource_manager_create_debugfs(ttm_manager_type(&vmw->bdev, VMW_PL_SYSTEM), + root, "system_mob_ttm"); +} + +static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val, + void *ptr) +{ + struct vmw_private *dev_priv = + container_of(nb, struct vmw_private, pm_nb); + + switch (val) { + case PM_HIBERNATION_PREPARE: + /* + * Take the reservation sem in write mode, which will make sure + * there are no other processes holding a buffer object + * reservation, meaning we should be able to evict all buffer + * objects if needed. + * Once user-space processes have been frozen, we can release + * the lock again. + */ + dev_priv->suspend_locked = true; + break; + case PM_POST_HIBERNATION: + case PM_POST_RESTORE: + if (READ_ONCE(dev_priv->suspend_locked)) { + dev_priv->suspend_locked = false; + } + break; + default: + break; + } + return 0; +} + +static int vmw_pci_suspend(struct pci_dev *pdev, pm_message_t state) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + struct vmw_private *dev_priv = vmw_priv(dev); + + if (dev_priv->refuse_hibernation) + return -EBUSY; + + pci_save_state(pdev); + pci_disable_device(pdev); + pci_set_power_state(pdev, PCI_D3hot); + return 0; +} + +static int vmw_pci_resume(struct pci_dev *pdev) +{ + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + return pci_enable_device(pdev); +} + +static int vmw_pm_suspend(struct device *kdev) +{ + struct pci_dev *pdev = to_pci_dev(kdev); + struct pm_message dummy; + + dummy.event = 0; + + return vmw_pci_suspend(pdev, dummy); +} + +static int vmw_pm_resume(struct device *kdev) +{ + struct pci_dev *pdev = to_pci_dev(kdev); + + return vmw_pci_resume(pdev); +} + +static int vmw_pm_freeze(struct device *kdev) +{ + struct pci_dev *pdev = to_pci_dev(kdev); + struct drm_device *dev = pci_get_drvdata(pdev); + struct vmw_private *dev_priv = vmw_priv(dev); + struct ttm_operation_ctx ctx = { + .interruptible = false, + .no_wait_gpu = false + }; + int ret; + + /* + * No user-space processes should be running now. + */ + ret = vmw_kms_suspend(&dev_priv->drm); + if (ret) { + DRM_ERROR("Failed to freeze modesetting.\n"); + return ret; + } + if (dev_priv->enable_fb) + vmw_fb_off(dev_priv); + + vmw_execbuf_release_pinned_bo(dev_priv); + vmw_resource_evict_all(dev_priv); + vmw_release_device_early(dev_priv); + while (ttm_device_swapout(&dev_priv->bdev, &ctx, GFP_KERNEL) > 0); + if (dev_priv->enable_fb) + vmw_fifo_resource_dec(dev_priv); + if (atomic_read(&dev_priv->num_fifo_resources) != 0) { + DRM_ERROR("Can't hibernate while 3D resources are active.\n"); + if (dev_priv->enable_fb) + vmw_fifo_resource_inc(dev_priv); + WARN_ON(vmw_request_device_late(dev_priv)); + dev_priv->suspend_locked = false; + if (dev_priv->suspend_state) + vmw_kms_resume(dev); + if (dev_priv->enable_fb) + vmw_fb_on(dev_priv); + return -EBUSY; + } + + vmw_fence_fifo_down(dev_priv->fman); + __vmw_svga_disable(dev_priv); + + vmw_release_device_late(dev_priv); + return 0; +} + +static int vmw_pm_restore(struct device *kdev) +{ + struct pci_dev *pdev = to_pci_dev(kdev); + struct drm_device *dev = pci_get_drvdata(pdev); + struct vmw_private *dev_priv = vmw_priv(dev); + int ret; + + vmw_detect_version(dev_priv); + + if (dev_priv->enable_fb) + vmw_fifo_resource_inc(dev_priv); + + ret = vmw_request_device(dev_priv); + if (ret) + return ret; + + if (dev_priv->enable_fb) + __vmw_svga_enable(dev_priv); + + vmw_fence_fifo_up(dev_priv->fman); + dev_priv->suspend_locked = false; + if (dev_priv->suspend_state) + vmw_kms_resume(&dev_priv->drm); + + if (dev_priv->enable_fb) + vmw_fb_on(dev_priv); + + return 0; +} + +static const struct dev_pm_ops vmw_pm_ops = { + .freeze = vmw_pm_freeze, + .thaw = vmw_pm_restore, + .restore = vmw_pm_restore, + .suspend = vmw_pm_suspend, + .resume = vmw_pm_resume, +}; + +static const struct file_operations vmwgfx_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = vmw_unlocked_ioctl, + .mmap = vmw_mmap, + .poll = drm_poll, + .read = drm_read, +#if defined(CONFIG_COMPAT) + .compat_ioctl = vmw_compat_ioctl, +#endif + .llseek = noop_llseek, +}; + +static const struct drm_driver driver = { + .driver_features = + DRIVER_MODESET | DRIVER_RENDER | DRIVER_ATOMIC | DRIVER_GEM, + .ioctls = vmw_ioctls, + .num_ioctls = ARRAY_SIZE(vmw_ioctls), + .master_set = vmw_master_set, + .master_drop = vmw_master_drop, + .open = vmw_driver_open, + .postclose = vmw_postclose, + + .dumb_create = vmw_dumb_create, + .dumb_map_offset = drm_gem_ttm_dumb_map_offset, + + .prime_fd_to_handle = vmw_prime_fd_to_handle, + .prime_handle_to_fd = vmw_prime_handle_to_fd, + + .fops = &vmwgfx_driver_fops, + .name = VMWGFX_DRIVER_NAME, + .desc = VMWGFX_DRIVER_DESC, + .date = VMWGFX_DRIVER_DATE, + .major = VMWGFX_DRIVER_MAJOR, + .minor = VMWGFX_DRIVER_MINOR, + .patchlevel = VMWGFX_DRIVER_PATCHLEVEL +}; + +static struct pci_driver vmw_pci_driver = { + .name = VMWGFX_DRIVER_NAME, + .id_table = vmw_pci_id_list, + .probe = vmw_probe, + .remove = vmw_remove, + .driver = { + .pm = &vmw_pm_ops + } +}; + +static int vmw_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct vmw_private *vmw; + int ret; + + ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &driver); + if (ret) + goto out_error; + + ret = pcim_enable_device(pdev); + if (ret) + goto out_error; + + vmw = devm_drm_dev_alloc(&pdev->dev, &driver, + struct vmw_private, drm); + if (IS_ERR(vmw)) { + ret = PTR_ERR(vmw); + goto out_error; + } + + pci_set_drvdata(pdev, &vmw->drm); + + ret = vmw_driver_load(vmw, ent->device); + if (ret) + goto out_error; + + ret = drm_dev_register(&vmw->drm, 0); + if (ret) + goto out_unload; + + vmw_debugfs_gem_init(vmw); + vmw_debugfs_resource_managers_init(vmw); + + return 0; +out_unload: + vmw_driver_unload(&vmw->drm); +out_error: + return ret; +} + +drm_module_pci_driver(vmw_pci_driver); + +MODULE_AUTHOR("VMware Inc. and others"); +MODULE_DESCRIPTION("Standalone drm driver for the VMware SVGA device"); +MODULE_LICENSE("GPL and additional rights"); +MODULE_VERSION(__stringify(VMWGFX_DRIVER_MAJOR) "." + __stringify(VMWGFX_DRIVER_MINOR) "." + __stringify(VMWGFX_DRIVER_PATCHLEVEL) "." + "0"); 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