mirror of https://gitee.com/openkylin/linux.git
1922 lines
52 KiB
C
1922 lines
52 KiB
C
/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
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*/
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/*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_fb_helper.h>
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#include "intel_drv.h"
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#include <drm/i915_drm.h>
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#include "i915_drv.h"
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#include "i915_trace.h"
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#include <linux/pci.h>
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#include <linux/vgaarb.h>
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#include <linux/acpi.h>
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#include <linux/pnp.h>
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#include <linux/vga_switcheroo.h>
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#include <linux/slab.h>
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#include <acpi/video.h>
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#include <asm/pat.h>
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#define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS])
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#define BEGIN_LP_RING(n) \
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intel_ring_begin(LP_RING(dev_priv), (n))
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#define OUT_RING(x) \
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intel_ring_emit(LP_RING(dev_priv), x)
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#define ADVANCE_LP_RING() \
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intel_ring_advance(LP_RING(dev_priv))
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/**
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* Lock test for when it's just for synchronization of ring access.
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*
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* In that case, we don't need to do it when GEM is initialized as nobody else
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* has access to the ring.
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*/
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#define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \
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if (LP_RING(dev->dev_private)->obj == NULL) \
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LOCK_TEST_WITH_RETURN(dev, file); \
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} while (0)
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static inline u32
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intel_read_legacy_status_page(struct drm_i915_private *dev_priv, int reg)
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{
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if (I915_NEED_GFX_HWS(dev_priv->dev))
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return ioread32(dev_priv->dri1.gfx_hws_cpu_addr + reg);
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else
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return intel_read_status_page(LP_RING(dev_priv), reg);
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}
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#define READ_HWSP(dev_priv, reg) intel_read_legacy_status_page(dev_priv, reg)
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#define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
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#define I915_BREADCRUMB_INDEX 0x21
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void i915_update_dri1_breadcrumb(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_master_private *master_priv;
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if (dev->primary->master) {
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master_priv = dev->primary->master->driver_priv;
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if (master_priv->sarea_priv)
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master_priv->sarea_priv->last_dispatch =
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READ_BREADCRUMB(dev_priv);
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}
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}
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static void i915_write_hws_pga(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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u32 addr;
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addr = dev_priv->status_page_dmah->busaddr;
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if (INTEL_INFO(dev)->gen >= 4)
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addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0;
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I915_WRITE(HWS_PGA, addr);
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}
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/**
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* Frees the hardware status page, whether it's a physical address or a virtual
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* address set up by the X Server.
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*/
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static void i915_free_hws(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct intel_ring_buffer *ring = LP_RING(dev_priv);
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if (dev_priv->status_page_dmah) {
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drm_pci_free(dev, dev_priv->status_page_dmah);
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dev_priv->status_page_dmah = NULL;
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}
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if (ring->status_page.gfx_addr) {
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ring->status_page.gfx_addr = 0;
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iounmap(dev_priv->dri1.gfx_hws_cpu_addr);
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}
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/* Need to rewrite hardware status page */
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I915_WRITE(HWS_PGA, 0x1ffff000);
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}
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void i915_kernel_lost_context(struct drm_device * dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_master_private *master_priv;
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struct intel_ring_buffer *ring = LP_RING(dev_priv);
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/*
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* We should never lose context on the ring with modesetting
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* as we don't expose it to userspace
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*/
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if (drm_core_check_feature(dev, DRIVER_MODESET))
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return;
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ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
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ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
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ring->space = ring->head - (ring->tail + I915_RING_FREE_SPACE);
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if (ring->space < 0)
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ring->space += ring->size;
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if (!dev->primary->master)
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return;
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master_priv = dev->primary->master->driver_priv;
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if (ring->head == ring->tail && master_priv->sarea_priv)
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master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
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}
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static int i915_dma_cleanup(struct drm_device * dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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int i;
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/* Make sure interrupts are disabled here because the uninstall ioctl
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* may not have been called from userspace and after dev_private
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* is freed, it's too late.
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*/
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if (dev->irq_enabled)
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drm_irq_uninstall(dev);
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mutex_lock(&dev->struct_mutex);
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for (i = 0; i < I915_NUM_RINGS; i++)
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intel_cleanup_ring_buffer(&dev_priv->ring[i]);
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mutex_unlock(&dev->struct_mutex);
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/* Clear the HWS virtual address at teardown */
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if (I915_NEED_GFX_HWS(dev))
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i915_free_hws(dev);
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return 0;
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}
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static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
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int ret;
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master_priv->sarea = drm_getsarea(dev);
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if (master_priv->sarea) {
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master_priv->sarea_priv = (drm_i915_sarea_t *)
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((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
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} else {
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DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
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}
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if (init->ring_size != 0) {
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if (LP_RING(dev_priv)->obj != NULL) {
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i915_dma_cleanup(dev);
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DRM_ERROR("Client tried to initialize ringbuffer in "
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"GEM mode\n");
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return -EINVAL;
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}
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ret = intel_render_ring_init_dri(dev,
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init->ring_start,
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init->ring_size);
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if (ret) {
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i915_dma_cleanup(dev);
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return ret;
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}
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}
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dev_priv->dri1.cpp = init->cpp;
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dev_priv->dri1.back_offset = init->back_offset;
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dev_priv->dri1.front_offset = init->front_offset;
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dev_priv->dri1.current_page = 0;
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if (master_priv->sarea_priv)
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master_priv->sarea_priv->pf_current_page = 0;
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/* Allow hardware batchbuffers unless told otherwise.
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*/
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dev_priv->dri1.allow_batchbuffer = 1;
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return 0;
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}
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static int i915_dma_resume(struct drm_device * dev)
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{
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drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
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struct intel_ring_buffer *ring = LP_RING(dev_priv);
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DRM_DEBUG_DRIVER("%s\n", __func__);
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if (ring->virtual_start == NULL) {
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DRM_ERROR("can not ioremap virtual address for"
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" ring buffer\n");
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return -ENOMEM;
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}
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/* Program Hardware Status Page */
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if (!ring->status_page.page_addr) {
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DRM_ERROR("Can not find hardware status page\n");
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return -EINVAL;
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}
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DRM_DEBUG_DRIVER("hw status page @ %p\n",
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ring->status_page.page_addr);
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if (ring->status_page.gfx_addr != 0)
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intel_ring_setup_status_page(ring);
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else
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i915_write_hws_pga(dev);
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DRM_DEBUG_DRIVER("Enabled hardware status page\n");
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return 0;
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}
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static int i915_dma_init(struct drm_device *dev, void *data,
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struct drm_file *file_priv)
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{
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drm_i915_init_t *init = data;
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int retcode = 0;
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if (drm_core_check_feature(dev, DRIVER_MODESET))
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return -ENODEV;
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switch (init->func) {
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case I915_INIT_DMA:
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retcode = i915_initialize(dev, init);
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break;
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case I915_CLEANUP_DMA:
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retcode = i915_dma_cleanup(dev);
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break;
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case I915_RESUME_DMA:
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retcode = i915_dma_resume(dev);
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break;
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default:
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retcode = -EINVAL;
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break;
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}
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return retcode;
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}
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/* Implement basically the same security restrictions as hardware does
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* for MI_BATCH_NON_SECURE. These can be made stricter at any time.
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*
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* Most of the calculations below involve calculating the size of a
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* particular instruction. It's important to get the size right as
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* that tells us where the next instruction to check is. Any illegal
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* instruction detected will be given a size of zero, which is a
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* signal to abort the rest of the buffer.
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*/
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static int validate_cmd(int cmd)
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{
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switch (((cmd >> 29) & 0x7)) {
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case 0x0:
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switch ((cmd >> 23) & 0x3f) {
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case 0x0:
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return 1; /* MI_NOOP */
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case 0x4:
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return 1; /* MI_FLUSH */
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default:
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return 0; /* disallow everything else */
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}
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break;
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case 0x1:
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return 0; /* reserved */
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case 0x2:
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return (cmd & 0xff) + 2; /* 2d commands */
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case 0x3:
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if (((cmd >> 24) & 0x1f) <= 0x18)
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return 1;
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switch ((cmd >> 24) & 0x1f) {
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case 0x1c:
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return 1;
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case 0x1d:
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switch ((cmd >> 16) & 0xff) {
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case 0x3:
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return (cmd & 0x1f) + 2;
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case 0x4:
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return (cmd & 0xf) + 2;
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default:
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return (cmd & 0xffff) + 2;
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}
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case 0x1e:
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if (cmd & (1 << 23))
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return (cmd & 0xffff) + 1;
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else
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return 1;
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case 0x1f:
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if ((cmd & (1 << 23)) == 0) /* inline vertices */
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return (cmd & 0x1ffff) + 2;
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else if (cmd & (1 << 17)) /* indirect random */
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if ((cmd & 0xffff) == 0)
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return 0; /* unknown length, too hard */
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else
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return (((cmd & 0xffff) + 1) / 2) + 1;
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else
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return 2; /* indirect sequential */
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default:
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return 0;
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}
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default:
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return 0;
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}
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return 0;
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}
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static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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int i, ret;
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if ((dwords+1) * sizeof(int) >= LP_RING(dev_priv)->size - 8)
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return -EINVAL;
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for (i = 0; i < dwords;) {
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int sz = validate_cmd(buffer[i]);
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if (sz == 0 || i + sz > dwords)
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return -EINVAL;
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i += sz;
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}
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ret = BEGIN_LP_RING((dwords+1)&~1);
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if (ret)
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return ret;
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for (i = 0; i < dwords; i++)
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OUT_RING(buffer[i]);
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if (dwords & 1)
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OUT_RING(0);
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ADVANCE_LP_RING();
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return 0;
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}
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int
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i915_emit_box(struct drm_device *dev,
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struct drm_clip_rect *box,
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int DR1, int DR4)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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int ret;
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if (box->y2 <= box->y1 || box->x2 <= box->x1 ||
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box->y2 <= 0 || box->x2 <= 0) {
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DRM_ERROR("Bad box %d,%d..%d,%d\n",
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box->x1, box->y1, box->x2, box->y2);
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return -EINVAL;
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}
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if (INTEL_INFO(dev)->gen >= 4) {
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ret = BEGIN_LP_RING(4);
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if (ret)
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return ret;
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OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
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OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
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OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
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OUT_RING(DR4);
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} else {
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ret = BEGIN_LP_RING(6);
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if (ret)
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return ret;
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OUT_RING(GFX_OP_DRAWRECT_INFO);
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OUT_RING(DR1);
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OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
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OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
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OUT_RING(DR4);
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OUT_RING(0);
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}
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ADVANCE_LP_RING();
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return 0;
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}
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/* XXX: Emitting the counter should really be moved to part of the IRQ
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* emit. For now, do it in both places:
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*/
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static void i915_emit_breadcrumb(struct drm_device *dev)
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{
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drm_i915_private_t *dev_priv = dev->dev_private;
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struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
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dev_priv->dri1.counter++;
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if (dev_priv->dri1.counter > 0x7FFFFFFFUL)
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dev_priv->dri1.counter = 0;
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if (master_priv->sarea_priv)
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master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter;
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if (BEGIN_LP_RING(4) == 0) {
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OUT_RING(MI_STORE_DWORD_INDEX);
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OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
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OUT_RING(dev_priv->dri1.counter);
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OUT_RING(0);
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ADVANCE_LP_RING();
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}
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}
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static int i915_dispatch_cmdbuffer(struct drm_device * dev,
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drm_i915_cmdbuffer_t *cmd,
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struct drm_clip_rect *cliprects,
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void *cmdbuf)
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{
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int nbox = cmd->num_cliprects;
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int i = 0, count, ret;
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if (cmd->sz & 0x3) {
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DRM_ERROR("alignment");
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return -EINVAL;
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}
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i915_kernel_lost_context(dev);
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count = nbox ? nbox : 1;
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for (i = 0; i < count; i++) {
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if (i < nbox) {
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ret = i915_emit_box(dev, &cliprects[i],
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cmd->DR1, cmd->DR4);
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if (ret)
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return ret;
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}
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ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
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if (ret)
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return ret;
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}
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i915_emit_breadcrumb(dev);
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return 0;
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}
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static int i915_dispatch_batchbuffer(struct drm_device * dev,
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drm_i915_batchbuffer_t * batch,
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struct drm_clip_rect *cliprects)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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int nbox = batch->num_cliprects;
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int i, count, ret;
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if ((batch->start | batch->used) & 0x7) {
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DRM_ERROR("alignment");
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return -EINVAL;
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}
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i915_kernel_lost_context(dev);
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count = nbox ? nbox : 1;
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for (i = 0; i < count; i++) {
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if (i < nbox) {
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ret = i915_emit_box(dev, &cliprects[i],
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batch->DR1, batch->DR4);
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if (ret)
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return ret;
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}
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if (!IS_I830(dev) && !IS_845G(dev)) {
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ret = BEGIN_LP_RING(2);
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if (ret)
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|
return ret;
|
|
|
|
if (INTEL_INFO(dev)->gen >= 4) {
|
|
OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
|
|
OUT_RING(batch->start);
|
|
} else {
|
|
OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
|
|
OUT_RING(batch->start | MI_BATCH_NON_SECURE);
|
|
}
|
|
} else {
|
|
ret = BEGIN_LP_RING(4);
|
|
if (ret)
|
|
return ret;
|
|
|
|
OUT_RING(MI_BATCH_BUFFER);
|
|
OUT_RING(batch->start | MI_BATCH_NON_SECURE);
|
|
OUT_RING(batch->start + batch->used - 4);
|
|
OUT_RING(0);
|
|
}
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
|
|
if (IS_G4X(dev) || IS_GEN5(dev)) {
|
|
if (BEGIN_LP_RING(2) == 0) {
|
|
OUT_RING(MI_FLUSH | MI_NO_WRITE_FLUSH | MI_INVALIDATE_ISP);
|
|
OUT_RING(MI_NOOP);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
}
|
|
|
|
i915_emit_breadcrumb(dev);
|
|
return 0;
|
|
}
|
|
|
|
static int i915_dispatch_flip(struct drm_device * dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
struct drm_i915_master_private *master_priv =
|
|
dev->primary->master->driver_priv;
|
|
int ret;
|
|
|
|
if (!master_priv->sarea_priv)
|
|
return -EINVAL;
|
|
|
|
DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
|
|
__func__,
|
|
dev_priv->dri1.current_page,
|
|
master_priv->sarea_priv->pf_current_page);
|
|
|
|
i915_kernel_lost_context(dev);
|
|
|
|
ret = BEGIN_LP_RING(10);
|
|
if (ret)
|
|
return ret;
|
|
|
|
OUT_RING(MI_FLUSH | MI_READ_FLUSH);
|
|
OUT_RING(0);
|
|
|
|
OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
|
|
OUT_RING(0);
|
|
if (dev_priv->dri1.current_page == 0) {
|
|
OUT_RING(dev_priv->dri1.back_offset);
|
|
dev_priv->dri1.current_page = 1;
|
|
} else {
|
|
OUT_RING(dev_priv->dri1.front_offset);
|
|
dev_priv->dri1.current_page = 0;
|
|
}
|
|
OUT_RING(0);
|
|
|
|
OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
|
|
OUT_RING(0);
|
|
|
|
ADVANCE_LP_RING();
|
|
|
|
master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter++;
|
|
|
|
if (BEGIN_LP_RING(4) == 0) {
|
|
OUT_RING(MI_STORE_DWORD_INDEX);
|
|
OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
|
|
OUT_RING(dev_priv->dri1.counter);
|
|
OUT_RING(0);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
master_priv->sarea_priv->pf_current_page = dev_priv->dri1.current_page;
|
|
return 0;
|
|
}
|
|
|
|
static int i915_quiescent(struct drm_device *dev)
|
|
{
|
|
i915_kernel_lost_context(dev);
|
|
return intel_ring_idle(LP_RING(dev->dev_private));
|
|
}
|
|
|
|
static int i915_flush_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
int ret;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
ret = i915_quiescent(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int i915_batchbuffer(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
|
|
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
|
|
drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
|
|
master_priv->sarea_priv;
|
|
drm_i915_batchbuffer_t *batch = data;
|
|
int ret;
|
|
struct drm_clip_rect *cliprects = NULL;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
if (!dev_priv->dri1.allow_batchbuffer) {
|
|
DRM_ERROR("Batchbuffer ioctl disabled\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
|
|
batch->start, batch->used, batch->num_cliprects);
|
|
|
|
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
if (batch->num_cliprects < 0)
|
|
return -EINVAL;
|
|
|
|
if (batch->num_cliprects) {
|
|
cliprects = kcalloc(batch->num_cliprects,
|
|
sizeof(struct drm_clip_rect),
|
|
GFP_KERNEL);
|
|
if (cliprects == NULL)
|
|
return -ENOMEM;
|
|
|
|
ret = copy_from_user(cliprects, batch->cliprects,
|
|
batch->num_cliprects *
|
|
sizeof(struct drm_clip_rect));
|
|
if (ret != 0) {
|
|
ret = -EFAULT;
|
|
goto fail_free;
|
|
}
|
|
}
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
if (sarea_priv)
|
|
sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
|
|
|
|
fail_free:
|
|
kfree(cliprects);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int i915_cmdbuffer(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
|
|
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
|
|
drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
|
|
master_priv->sarea_priv;
|
|
drm_i915_cmdbuffer_t *cmdbuf = data;
|
|
struct drm_clip_rect *cliprects = NULL;
|
|
void *batch_data;
|
|
int ret;
|
|
|
|
DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
|
|
cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
if (cmdbuf->num_cliprects < 0)
|
|
return -EINVAL;
|
|
|
|
batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
|
|
if (batch_data == NULL)
|
|
return -ENOMEM;
|
|
|
|
ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
|
|
if (ret != 0) {
|
|
ret = -EFAULT;
|
|
goto fail_batch_free;
|
|
}
|
|
|
|
if (cmdbuf->num_cliprects) {
|
|
cliprects = kcalloc(cmdbuf->num_cliprects,
|
|
sizeof(struct drm_clip_rect), GFP_KERNEL);
|
|
if (cliprects == NULL) {
|
|
ret = -ENOMEM;
|
|
goto fail_batch_free;
|
|
}
|
|
|
|
ret = copy_from_user(cliprects, cmdbuf->cliprects,
|
|
cmdbuf->num_cliprects *
|
|
sizeof(struct drm_clip_rect));
|
|
if (ret != 0) {
|
|
ret = -EFAULT;
|
|
goto fail_clip_free;
|
|
}
|
|
}
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
if (ret) {
|
|
DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
|
|
goto fail_clip_free;
|
|
}
|
|
|
|
if (sarea_priv)
|
|
sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
|
|
|
|
fail_clip_free:
|
|
kfree(cliprects);
|
|
fail_batch_free:
|
|
kfree(batch_data);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int i915_emit_irq(struct drm_device * dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
|
|
|
|
i915_kernel_lost_context(dev);
|
|
|
|
DRM_DEBUG_DRIVER("\n");
|
|
|
|
dev_priv->dri1.counter++;
|
|
if (dev_priv->dri1.counter > 0x7FFFFFFFUL)
|
|
dev_priv->dri1.counter = 1;
|
|
if (master_priv->sarea_priv)
|
|
master_priv->sarea_priv->last_enqueue = dev_priv->dri1.counter;
|
|
|
|
if (BEGIN_LP_RING(4) == 0) {
|
|
OUT_RING(MI_STORE_DWORD_INDEX);
|
|
OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
|
|
OUT_RING(dev_priv->dri1.counter);
|
|
OUT_RING(MI_USER_INTERRUPT);
|
|
ADVANCE_LP_RING();
|
|
}
|
|
|
|
return dev_priv->dri1.counter;
|
|
}
|
|
|
|
static int i915_wait_irq(struct drm_device * dev, int irq_nr)
|
|
{
|
|
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
|
|
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
|
|
int ret = 0;
|
|
struct intel_ring_buffer *ring = LP_RING(dev_priv);
|
|
|
|
DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
|
|
READ_BREADCRUMB(dev_priv));
|
|
|
|
if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
|
|
if (master_priv->sarea_priv)
|
|
master_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
|
|
return 0;
|
|
}
|
|
|
|
if (master_priv->sarea_priv)
|
|
master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
|
|
|
|
if (ring->irq_get(ring)) {
|
|
DRM_WAIT_ON(ret, ring->irq_queue, 3 * DRM_HZ,
|
|
READ_BREADCRUMB(dev_priv) >= irq_nr);
|
|
ring->irq_put(ring);
|
|
} else if (wait_for(READ_BREADCRUMB(dev_priv) >= irq_nr, 3000))
|
|
ret = -EBUSY;
|
|
|
|
if (ret == -EBUSY) {
|
|
DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
|
|
READ_BREADCRUMB(dev_priv), (int)dev_priv->dri1.counter);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Needs the lock as it touches the ring.
|
|
*/
|
|
static int i915_irq_emit(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_irq_emit_t *emit = data;
|
|
int result;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
if (!dev_priv || !LP_RING(dev_priv)->virtual_start) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
result = i915_emit_irq(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) {
|
|
DRM_ERROR("copy_to_user\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Doesn't need the hardware lock.
|
|
*/
|
|
static int i915_irq_wait(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_irq_wait_t *irqwait = data;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
if (!dev_priv) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return i915_wait_irq(dev, irqwait->irq_seq);
|
|
}
|
|
|
|
static int i915_vblank_pipe_get(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_vblank_pipe_t *pipe = data;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
if (!dev_priv) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
pipe->pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Schedule buffer swap at given vertical blank.
|
|
*/
|
|
static int i915_vblank_swap(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
/* The delayed swap mechanism was fundamentally racy, and has been
|
|
* removed. The model was that the client requested a delayed flip/swap
|
|
* from the kernel, then waited for vblank before continuing to perform
|
|
* rendering. The problem was that the kernel might wake the client
|
|
* up before it dispatched the vblank swap (since the lock has to be
|
|
* held while touching the ringbuffer), in which case the client would
|
|
* clear and start the next frame before the swap occurred, and
|
|
* flicker would occur in addition to likely missing the vblank.
|
|
*
|
|
* In the absence of this ioctl, userland falls back to a correct path
|
|
* of waiting for a vblank, then dispatching the swap on its own.
|
|
* Context switching to userland and back is plenty fast enough for
|
|
* meeting the requirements of vblank swapping.
|
|
*/
|
|
return -EINVAL;
|
|
}
|
|
|
|
static int i915_flip_bufs(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
int ret;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
DRM_DEBUG_DRIVER("%s\n", __func__);
|
|
|
|
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
ret = i915_dispatch_flip(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int i915_getparam(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_getparam_t *param = data;
|
|
int value;
|
|
|
|
if (!dev_priv) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (param->param) {
|
|
case I915_PARAM_IRQ_ACTIVE:
|
|
value = dev->pdev->irq ? 1 : 0;
|
|
break;
|
|
case I915_PARAM_ALLOW_BATCHBUFFER:
|
|
value = dev_priv->dri1.allow_batchbuffer ? 1 : 0;
|
|
break;
|
|
case I915_PARAM_LAST_DISPATCH:
|
|
value = READ_BREADCRUMB(dev_priv);
|
|
break;
|
|
case I915_PARAM_CHIPSET_ID:
|
|
value = dev->pci_device;
|
|
break;
|
|
case I915_PARAM_HAS_GEM:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_NUM_FENCES_AVAIL:
|
|
value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
|
|
break;
|
|
case I915_PARAM_HAS_OVERLAY:
|
|
value = dev_priv->overlay ? 1 : 0;
|
|
break;
|
|
case I915_PARAM_HAS_PAGEFLIPPING:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_EXECBUF2:
|
|
/* depends on GEM */
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_BSD:
|
|
value = intel_ring_initialized(&dev_priv->ring[VCS]);
|
|
break;
|
|
case I915_PARAM_HAS_BLT:
|
|
value = intel_ring_initialized(&dev_priv->ring[BCS]);
|
|
break;
|
|
case I915_PARAM_HAS_RELAXED_FENCING:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_COHERENT_RINGS:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_EXEC_CONSTANTS:
|
|
value = INTEL_INFO(dev)->gen >= 4;
|
|
break;
|
|
case I915_PARAM_HAS_RELAXED_DELTA:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_GEN7_SOL_RESET:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_LLC:
|
|
value = HAS_LLC(dev);
|
|
break;
|
|
case I915_PARAM_HAS_ALIASING_PPGTT:
|
|
value = dev_priv->mm.aliasing_ppgtt ? 1 : 0;
|
|
break;
|
|
case I915_PARAM_HAS_WAIT_TIMEOUT:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_SEMAPHORES:
|
|
value = i915_semaphore_is_enabled(dev);
|
|
break;
|
|
case I915_PARAM_HAS_PRIME_VMAP_FLUSH:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_SECURE_BATCHES:
|
|
value = capable(CAP_SYS_ADMIN);
|
|
break;
|
|
case I915_PARAM_HAS_PINNED_BATCHES:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_EXEC_NO_RELOC:
|
|
value = 1;
|
|
break;
|
|
case I915_PARAM_HAS_EXEC_HANDLE_LUT:
|
|
value = 1;
|
|
break;
|
|
default:
|
|
DRM_DEBUG_DRIVER("Unknown parameter %d\n",
|
|
param->param);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
|
|
DRM_ERROR("DRM_COPY_TO_USER failed\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_setparam(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_setparam_t *param = data;
|
|
|
|
if (!dev_priv) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
switch (param->param) {
|
|
case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
|
|
break;
|
|
case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
|
|
break;
|
|
case I915_SETPARAM_ALLOW_BATCHBUFFER:
|
|
dev_priv->dri1.allow_batchbuffer = param->value ? 1 : 0;
|
|
break;
|
|
case I915_SETPARAM_NUM_USED_FENCES:
|
|
if (param->value > dev_priv->num_fence_regs ||
|
|
param->value < 0)
|
|
return -EINVAL;
|
|
/* Userspace can use first N regs */
|
|
dev_priv->fence_reg_start = param->value;
|
|
break;
|
|
default:
|
|
DRM_DEBUG_DRIVER("unknown parameter %d\n",
|
|
param->param);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_set_status_page(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
drm_i915_hws_addr_t *hws = data;
|
|
struct intel_ring_buffer *ring;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
if (!I915_NEED_GFX_HWS(dev))
|
|
return -EINVAL;
|
|
|
|
if (!dev_priv) {
|
|
DRM_ERROR("called with no initialization\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
WARN(1, "tried to set status page when mode setting active\n");
|
|
return 0;
|
|
}
|
|
|
|
DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
|
|
|
|
ring = LP_RING(dev_priv);
|
|
ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
|
|
|
|
dev_priv->dri1.gfx_hws_cpu_addr =
|
|
ioremap_wc(dev_priv->gtt.mappable_base + hws->addr, 4096);
|
|
if (dev_priv->dri1.gfx_hws_cpu_addr == NULL) {
|
|
i915_dma_cleanup(dev);
|
|
ring->status_page.gfx_addr = 0;
|
|
DRM_ERROR("can not ioremap virtual address for"
|
|
" G33 hw status page\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset_io(dev_priv->dri1.gfx_hws_cpu_addr, 0, PAGE_SIZE);
|
|
I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
|
|
|
|
DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
|
|
ring->status_page.gfx_addr);
|
|
DRM_DEBUG_DRIVER("load hws at %p\n",
|
|
ring->status_page.page_addr);
|
|
return 0;
|
|
}
|
|
|
|
static int i915_get_bridge_dev(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
|
|
if (!dev_priv->bridge_dev) {
|
|
DRM_ERROR("bridge device not found\n");
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define MCHBAR_I915 0x44
|
|
#define MCHBAR_I965 0x48
|
|
#define MCHBAR_SIZE (4*4096)
|
|
|
|
#define DEVEN_REG 0x54
|
|
#define DEVEN_MCHBAR_EN (1 << 28)
|
|
|
|
/* Allocate space for the MCH regs if needed, return nonzero on error */
|
|
static int
|
|
intel_alloc_mchbar_resource(struct drm_device *dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
int reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
|
|
u32 temp_lo, temp_hi = 0;
|
|
u64 mchbar_addr;
|
|
int ret;
|
|
|
|
if (INTEL_INFO(dev)->gen >= 4)
|
|
pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
|
|
pci_read_config_dword(dev_priv->bridge_dev, reg, &temp_lo);
|
|
mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
|
|
|
|
/* If ACPI doesn't have it, assume we need to allocate it ourselves */
|
|
#ifdef CONFIG_PNP
|
|
if (mchbar_addr &&
|
|
pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
|
|
return 0;
|
|
#endif
|
|
|
|
/* Get some space for it */
|
|
dev_priv->mch_res.name = "i915 MCHBAR";
|
|
dev_priv->mch_res.flags = IORESOURCE_MEM;
|
|
ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus,
|
|
&dev_priv->mch_res,
|
|
MCHBAR_SIZE, MCHBAR_SIZE,
|
|
PCIBIOS_MIN_MEM,
|
|
0, pcibios_align_resource,
|
|
dev_priv->bridge_dev);
|
|
if (ret) {
|
|
DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
|
|
dev_priv->mch_res.start = 0;
|
|
return ret;
|
|
}
|
|
|
|
if (INTEL_INFO(dev)->gen >= 4)
|
|
pci_write_config_dword(dev_priv->bridge_dev, reg + 4,
|
|
upper_32_bits(dev_priv->mch_res.start));
|
|
|
|
pci_write_config_dword(dev_priv->bridge_dev, reg,
|
|
lower_32_bits(dev_priv->mch_res.start));
|
|
return 0;
|
|
}
|
|
|
|
/* Setup MCHBAR if possible, return true if we should disable it again */
|
|
static void
|
|
intel_setup_mchbar(struct drm_device *dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
|
|
u32 temp;
|
|
bool enabled;
|
|
|
|
dev_priv->mchbar_need_disable = false;
|
|
|
|
if (IS_I915G(dev) || IS_I915GM(dev)) {
|
|
pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
|
|
enabled = !!(temp & DEVEN_MCHBAR_EN);
|
|
} else {
|
|
pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
|
|
enabled = temp & 1;
|
|
}
|
|
|
|
/* If it's already enabled, don't have to do anything */
|
|
if (enabled)
|
|
return;
|
|
|
|
if (intel_alloc_mchbar_resource(dev))
|
|
return;
|
|
|
|
dev_priv->mchbar_need_disable = true;
|
|
|
|
/* Space is allocated or reserved, so enable it. */
|
|
if (IS_I915G(dev) || IS_I915GM(dev)) {
|
|
pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
|
|
temp | DEVEN_MCHBAR_EN);
|
|
} else {
|
|
pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
|
|
pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp | 1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
intel_teardown_mchbar(struct drm_device *dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
int mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
|
|
u32 temp;
|
|
|
|
if (dev_priv->mchbar_need_disable) {
|
|
if (IS_I915G(dev) || IS_I915GM(dev)) {
|
|
pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
|
|
temp &= ~DEVEN_MCHBAR_EN;
|
|
pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG, temp);
|
|
} else {
|
|
pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
|
|
temp &= ~1;
|
|
pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp);
|
|
}
|
|
}
|
|
|
|
if (dev_priv->mch_res.start)
|
|
release_resource(&dev_priv->mch_res);
|
|
}
|
|
|
|
/* true = enable decode, false = disable decoder */
|
|
static unsigned int i915_vga_set_decode(void *cookie, bool state)
|
|
{
|
|
struct drm_device *dev = cookie;
|
|
|
|
intel_modeset_vga_set_state(dev, state);
|
|
if (state)
|
|
return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
|
|
VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
|
else
|
|
return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
|
|
}
|
|
|
|
static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
|
|
{
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
|
pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
|
|
if (state == VGA_SWITCHEROO_ON) {
|
|
pr_info("switched on\n");
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
|
/* i915 resume handler doesn't set to D0 */
|
|
pci_set_power_state(dev->pdev, PCI_D0);
|
|
i915_resume(dev);
|
|
dev->switch_power_state = DRM_SWITCH_POWER_ON;
|
|
} else {
|
|
pr_err("switched off\n");
|
|
dev->switch_power_state = DRM_SWITCH_POWER_CHANGING;
|
|
i915_suspend(dev, pmm);
|
|
dev->switch_power_state = DRM_SWITCH_POWER_OFF;
|
|
}
|
|
}
|
|
|
|
static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
|
|
{
|
|
struct drm_device *dev = pci_get_drvdata(pdev);
|
|
bool can_switch;
|
|
|
|
spin_lock(&dev->count_lock);
|
|
can_switch = (dev->open_count == 0);
|
|
spin_unlock(&dev->count_lock);
|
|
return can_switch;
|
|
}
|
|
|
|
static const struct vga_switcheroo_client_ops i915_switcheroo_ops = {
|
|
.set_gpu_state = i915_switcheroo_set_state,
|
|
.reprobe = NULL,
|
|
.can_switch = i915_switcheroo_can_switch,
|
|
};
|
|
|
|
static int i915_load_modeset_init(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
int ret;
|
|
|
|
ret = intel_parse_bios(dev);
|
|
if (ret)
|
|
DRM_INFO("failed to find VBIOS tables\n");
|
|
|
|
/* If we have > 1 VGA cards, then we need to arbitrate access
|
|
* to the common VGA resources.
|
|
*
|
|
* If we are a secondary display controller (!PCI_DISPLAY_CLASS_VGA),
|
|
* then we do not take part in VGA arbitration and the
|
|
* vga_client_register() fails with -ENODEV.
|
|
*/
|
|
ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
|
|
if (ret && ret != -ENODEV)
|
|
goto out;
|
|
|
|
intel_register_dsm_handler();
|
|
|
|
ret = vga_switcheroo_register_client(dev->pdev, &i915_switcheroo_ops);
|
|
if (ret)
|
|
goto cleanup_vga_client;
|
|
|
|
/* Initialise stolen first so that we may reserve preallocated
|
|
* objects for the BIOS to KMS transition.
|
|
*/
|
|
ret = i915_gem_init_stolen(dev);
|
|
if (ret)
|
|
goto cleanup_vga_switcheroo;
|
|
|
|
ret = drm_irq_install(dev);
|
|
if (ret)
|
|
goto cleanup_gem_stolen;
|
|
|
|
/* Important: The output setup functions called by modeset_init need
|
|
* working irqs for e.g. gmbus and dp aux transfers. */
|
|
intel_modeset_init(dev);
|
|
|
|
ret = i915_gem_init(dev);
|
|
if (ret)
|
|
goto cleanup_irq;
|
|
|
|
INIT_WORK(&dev_priv->console_resume_work, intel_console_resume);
|
|
|
|
intel_modeset_gem_init(dev);
|
|
|
|
/* Always safe in the mode setting case. */
|
|
/* FIXME: do pre/post-mode set stuff in core KMS code */
|
|
dev->vblank_disable_allowed = 1;
|
|
if (INTEL_INFO(dev)->num_pipes == 0) {
|
|
dev_priv->mm.suspended = 0;
|
|
return 0;
|
|
}
|
|
|
|
ret = intel_fbdev_init(dev);
|
|
if (ret)
|
|
goto cleanup_gem;
|
|
|
|
/* Only enable hotplug handling once the fbdev is fully set up. */
|
|
intel_hpd_init(dev);
|
|
|
|
/*
|
|
* Some ports require correctly set-up hpd registers for detection to
|
|
* work properly (leading to ghost connected connector status), e.g. VGA
|
|
* on gm45. Hence we can only set up the initial fbdev config after hpd
|
|
* irqs are fully enabled. Now we should scan for the initial config
|
|
* only once hotplug handling is enabled, but due to screwed-up locking
|
|
* around kms/fbdev init we can't protect the fdbev initial config
|
|
* scanning against hotplug events. Hence do this first and ignore the
|
|
* tiny window where we will loose hotplug notifactions.
|
|
*/
|
|
intel_fbdev_initial_config(dev);
|
|
|
|
/* Only enable hotplug handling once the fbdev is fully set up. */
|
|
dev_priv->enable_hotplug_processing = true;
|
|
|
|
drm_kms_helper_poll_init(dev);
|
|
|
|
/* We're off and running w/KMS */
|
|
dev_priv->mm.suspended = 0;
|
|
|
|
return 0;
|
|
|
|
cleanup_gem:
|
|
mutex_lock(&dev->struct_mutex);
|
|
i915_gem_cleanup_ringbuffer(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
i915_gem_cleanup_aliasing_ppgtt(dev);
|
|
cleanup_irq:
|
|
drm_irq_uninstall(dev);
|
|
cleanup_gem_stolen:
|
|
i915_gem_cleanup_stolen(dev);
|
|
cleanup_vga_switcheroo:
|
|
vga_switcheroo_unregister_client(dev->pdev);
|
|
cleanup_vga_client:
|
|
vga_client_register(dev->pdev, NULL, NULL, NULL);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
int i915_master_create(struct drm_device *dev, struct drm_master *master)
|
|
{
|
|
struct drm_i915_master_private *master_priv;
|
|
|
|
master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
|
|
if (!master_priv)
|
|
return -ENOMEM;
|
|
|
|
master->driver_priv = master_priv;
|
|
return 0;
|
|
}
|
|
|
|
void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
|
|
{
|
|
struct drm_i915_master_private *master_priv = master->driver_priv;
|
|
|
|
if (!master_priv)
|
|
return;
|
|
|
|
kfree(master_priv);
|
|
|
|
master->driver_priv = NULL;
|
|
}
|
|
|
|
static void
|
|
i915_mtrr_setup(struct drm_i915_private *dev_priv, unsigned long base,
|
|
unsigned long size)
|
|
{
|
|
dev_priv->mm.gtt_mtrr = -1;
|
|
|
|
#if defined(CONFIG_X86_PAT)
|
|
if (cpu_has_pat)
|
|
return;
|
|
#endif
|
|
|
|
/* Set up a WC MTRR for non-PAT systems. This is more common than
|
|
* one would think, because the kernel disables PAT on first
|
|
* generation Core chips because WC PAT gets overridden by a UC
|
|
* MTRR if present. Even if a UC MTRR isn't present.
|
|
*/
|
|
dev_priv->mm.gtt_mtrr = mtrr_add(base, size, MTRR_TYPE_WRCOMB, 1);
|
|
if (dev_priv->mm.gtt_mtrr < 0) {
|
|
DRM_INFO("MTRR allocation failed. Graphics "
|
|
"performance may suffer.\n");
|
|
}
|
|
}
|
|
|
|
static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
|
|
{
|
|
struct apertures_struct *ap;
|
|
struct pci_dev *pdev = dev_priv->dev->pdev;
|
|
bool primary;
|
|
|
|
ap = alloc_apertures(1);
|
|
if (!ap)
|
|
return;
|
|
|
|
ap->ranges[0].base = dev_priv->gtt.mappable_base;
|
|
ap->ranges[0].size = dev_priv->gtt.mappable_end - dev_priv->gtt.start;
|
|
|
|
primary =
|
|
pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
|
|
|
|
remove_conflicting_framebuffers(ap, "inteldrmfb", primary);
|
|
|
|
kfree(ap);
|
|
}
|
|
|
|
static void i915_dump_device_info(struct drm_i915_private *dev_priv)
|
|
{
|
|
const struct intel_device_info *info = dev_priv->info;
|
|
|
|
#define DEV_INFO_FLAG(name) info->name ? #name "," : ""
|
|
#define DEV_INFO_SEP ,
|
|
DRM_DEBUG_DRIVER("i915 device info: gen=%i, pciid=0x%04x flags="
|
|
"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
|
|
info->gen,
|
|
dev_priv->dev->pdev->device,
|
|
DEV_INFO_FLAGS);
|
|
#undef DEV_INFO_FLAG
|
|
#undef DEV_INFO_SEP
|
|
}
|
|
|
|
/**
|
|
* intel_early_sanitize_regs - clean up BIOS state
|
|
* @dev: DRM device
|
|
*
|
|
* This function must be called before we do any I915_READ or I915_WRITE. Its
|
|
* purpose is to clean up any state left by the BIOS that may affect us when
|
|
* reading and/or writing registers.
|
|
*/
|
|
static void intel_early_sanitize_regs(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
if (IS_HASWELL(dev))
|
|
I915_WRITE_NOTRACE(FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
|
|
}
|
|
|
|
/**
|
|
* i915_driver_load - setup chip and create an initial config
|
|
* @dev: DRM device
|
|
* @flags: startup flags
|
|
*
|
|
* The driver load routine has to do several things:
|
|
* - drive output discovery via intel_modeset_init()
|
|
* - initialize the memory manager
|
|
* - allocate initial config memory
|
|
* - setup the DRM framebuffer with the allocated memory
|
|
*/
|
|
int i915_driver_load(struct drm_device *dev, unsigned long flags)
|
|
{
|
|
struct drm_i915_private *dev_priv;
|
|
struct intel_device_info *info;
|
|
int ret = 0, mmio_bar, mmio_size;
|
|
uint32_t aperture_size;
|
|
|
|
info = (struct intel_device_info *) flags;
|
|
|
|
/* Refuse to load on gen6+ without kms enabled. */
|
|
if (info->gen >= 6 && !drm_core_check_feature(dev, DRIVER_MODESET))
|
|
return -ENODEV;
|
|
|
|
/* i915 has 4 more counters */
|
|
dev->counters += 4;
|
|
dev->types[6] = _DRM_STAT_IRQ;
|
|
dev->types[7] = _DRM_STAT_PRIMARY;
|
|
dev->types[8] = _DRM_STAT_SECONDARY;
|
|
dev->types[9] = _DRM_STAT_DMA;
|
|
|
|
dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
|
|
if (dev_priv == NULL)
|
|
return -ENOMEM;
|
|
|
|
dev->dev_private = (void *)dev_priv;
|
|
dev_priv->dev = dev;
|
|
dev_priv->info = info;
|
|
|
|
i915_dump_device_info(dev_priv);
|
|
|
|
if (i915_get_bridge_dev(dev)) {
|
|
ret = -EIO;
|
|
goto free_priv;
|
|
}
|
|
|
|
ret = i915_gem_gtt_init(dev);
|
|
if (ret)
|
|
goto put_bridge;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET))
|
|
i915_kick_out_firmware_fb(dev_priv);
|
|
|
|
pci_set_master(dev->pdev);
|
|
|
|
/* overlay on gen2 is broken and can't address above 1G */
|
|
if (IS_GEN2(dev))
|
|
dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(30));
|
|
|
|
/* 965GM sometimes incorrectly writes to hardware status page (HWS)
|
|
* using 32bit addressing, overwriting memory if HWS is located
|
|
* above 4GB.
|
|
*
|
|
* The documentation also mentions an issue with undefined
|
|
* behaviour if any general state is accessed within a page above 4GB,
|
|
* which also needs to be handled carefully.
|
|
*/
|
|
if (IS_BROADWATER(dev) || IS_CRESTLINE(dev))
|
|
dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(32));
|
|
|
|
mmio_bar = IS_GEN2(dev) ? 1 : 0;
|
|
/* Before gen4, the registers and the GTT are behind different BARs.
|
|
* However, from gen4 onwards, the registers and the GTT are shared
|
|
* in the same BAR, so we want to restrict this ioremap from
|
|
* clobbering the GTT which we want ioremap_wc instead. Fortunately,
|
|
* the register BAR remains the same size for all the earlier
|
|
* generations up to Ironlake.
|
|
*/
|
|
if (info->gen < 5)
|
|
mmio_size = 512*1024;
|
|
else
|
|
mmio_size = 2*1024*1024;
|
|
|
|
dev_priv->regs = pci_iomap(dev->pdev, mmio_bar, mmio_size);
|
|
if (!dev_priv->regs) {
|
|
DRM_ERROR("failed to map registers\n");
|
|
ret = -EIO;
|
|
goto put_gmch;
|
|
}
|
|
|
|
intel_early_sanitize_regs(dev);
|
|
|
|
aperture_size = dev_priv->gtt.mappable_end;
|
|
|
|
dev_priv->gtt.mappable =
|
|
io_mapping_create_wc(dev_priv->gtt.mappable_base,
|
|
aperture_size);
|
|
if (dev_priv->gtt.mappable == NULL) {
|
|
ret = -EIO;
|
|
goto out_rmmap;
|
|
}
|
|
|
|
i915_mtrr_setup(dev_priv, dev_priv->gtt.mappable_base,
|
|
aperture_size);
|
|
|
|
/* The i915 workqueue is primarily used for batched retirement of
|
|
* requests (and thus managing bo) once the task has been completed
|
|
* by the GPU. i915_gem_retire_requests() is called directly when we
|
|
* need high-priority retirement, such as waiting for an explicit
|
|
* bo.
|
|
*
|
|
* It is also used for periodic low-priority events, such as
|
|
* idle-timers and recording error state.
|
|
*
|
|
* All tasks on the workqueue are expected to acquire the dev mutex
|
|
* so there is no point in running more than one instance of the
|
|
* workqueue at any time. Use an ordered one.
|
|
*/
|
|
dev_priv->wq = alloc_ordered_workqueue("i915", 0);
|
|
if (dev_priv->wq == NULL) {
|
|
DRM_ERROR("Failed to create our workqueue.\n");
|
|
ret = -ENOMEM;
|
|
goto out_mtrrfree;
|
|
}
|
|
|
|
/* This must be called before any calls to HAS_PCH_* */
|
|
intel_detect_pch(dev);
|
|
|
|
intel_irq_init(dev);
|
|
intel_gt_init(dev);
|
|
|
|
/* Try to make sure MCHBAR is enabled before poking at it */
|
|
intel_setup_mchbar(dev);
|
|
intel_setup_gmbus(dev);
|
|
intel_opregion_setup(dev);
|
|
|
|
intel_setup_bios(dev);
|
|
|
|
i915_gem_load(dev);
|
|
|
|
/* On the 945G/GM, the chipset reports the MSI capability on the
|
|
* integrated graphics even though the support isn't actually there
|
|
* according to the published specs. It doesn't appear to function
|
|
* correctly in testing on 945G.
|
|
* This may be a side effect of MSI having been made available for PEG
|
|
* and the registers being closely associated.
|
|
*
|
|
* According to chipset errata, on the 965GM, MSI interrupts may
|
|
* be lost or delayed, but we use them anyways to avoid
|
|
* stuck interrupts on some machines.
|
|
*/
|
|
if (!IS_I945G(dev) && !IS_I945GM(dev))
|
|
pci_enable_msi(dev->pdev);
|
|
|
|
spin_lock_init(&dev_priv->irq_lock);
|
|
spin_lock_init(&dev_priv->gpu_error.lock);
|
|
spin_lock_init(&dev_priv->rps.lock);
|
|
mutex_init(&dev_priv->dpio_lock);
|
|
|
|
mutex_init(&dev_priv->rps.hw_lock);
|
|
mutex_init(&dev_priv->modeset_restore_lock);
|
|
|
|
dev_priv->num_plane = 1;
|
|
if (IS_VALLEYVIEW(dev))
|
|
dev_priv->num_plane = 2;
|
|
|
|
if (INTEL_INFO(dev)->num_pipes) {
|
|
ret = drm_vblank_init(dev, INTEL_INFO(dev)->num_pipes);
|
|
if (ret)
|
|
goto out_gem_unload;
|
|
}
|
|
|
|
/* Start out suspended */
|
|
dev_priv->mm.suspended = 1;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
ret = i915_load_modeset_init(dev);
|
|
if (ret < 0) {
|
|
DRM_ERROR("failed to init modeset\n");
|
|
goto out_gem_unload;
|
|
}
|
|
}
|
|
|
|
i915_setup_sysfs(dev);
|
|
|
|
if (INTEL_INFO(dev)->num_pipes) {
|
|
/* Must be done after probing outputs */
|
|
intel_opregion_init(dev);
|
|
acpi_video_register();
|
|
}
|
|
|
|
if (IS_GEN5(dev))
|
|
intel_gpu_ips_init(dev_priv);
|
|
|
|
return 0;
|
|
|
|
out_gem_unload:
|
|
if (dev_priv->mm.inactive_shrinker.shrink)
|
|
unregister_shrinker(&dev_priv->mm.inactive_shrinker);
|
|
|
|
if (dev->pdev->msi_enabled)
|
|
pci_disable_msi(dev->pdev);
|
|
|
|
intel_teardown_gmbus(dev);
|
|
intel_teardown_mchbar(dev);
|
|
destroy_workqueue(dev_priv->wq);
|
|
out_mtrrfree:
|
|
if (dev_priv->mm.gtt_mtrr >= 0) {
|
|
mtrr_del(dev_priv->mm.gtt_mtrr,
|
|
dev_priv->gtt.mappable_base,
|
|
aperture_size);
|
|
dev_priv->mm.gtt_mtrr = -1;
|
|
}
|
|
io_mapping_free(dev_priv->gtt.mappable);
|
|
out_rmmap:
|
|
pci_iounmap(dev->pdev, dev_priv->regs);
|
|
put_gmch:
|
|
dev_priv->gtt.gtt_remove(dev);
|
|
put_bridge:
|
|
pci_dev_put(dev_priv->bridge_dev);
|
|
free_priv:
|
|
kfree(dev_priv);
|
|
return ret;
|
|
}
|
|
|
|
int i915_driver_unload(struct drm_device *dev)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
int ret;
|
|
|
|
intel_gpu_ips_teardown();
|
|
|
|
i915_teardown_sysfs(dev);
|
|
|
|
if (dev_priv->mm.inactive_shrinker.shrink)
|
|
unregister_shrinker(&dev_priv->mm.inactive_shrinker);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
ret = i915_gpu_idle(dev);
|
|
if (ret)
|
|
DRM_ERROR("failed to idle hardware: %d\n", ret);
|
|
i915_gem_retire_requests(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
|
|
/* Cancel the retire work handler, which should be idle now. */
|
|
cancel_delayed_work_sync(&dev_priv->mm.retire_work);
|
|
|
|
io_mapping_free(dev_priv->gtt.mappable);
|
|
if (dev_priv->mm.gtt_mtrr >= 0) {
|
|
mtrr_del(dev_priv->mm.gtt_mtrr,
|
|
dev_priv->gtt.mappable_base,
|
|
dev_priv->gtt.mappable_end);
|
|
dev_priv->mm.gtt_mtrr = -1;
|
|
}
|
|
|
|
acpi_video_unregister();
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
intel_fbdev_fini(dev);
|
|
intel_modeset_cleanup(dev);
|
|
cancel_work_sync(&dev_priv->console_resume_work);
|
|
|
|
/*
|
|
* free the memory space allocated for the child device
|
|
* config parsed from VBT
|
|
*/
|
|
if (dev_priv->child_dev && dev_priv->child_dev_num) {
|
|
kfree(dev_priv->child_dev);
|
|
dev_priv->child_dev = NULL;
|
|
dev_priv->child_dev_num = 0;
|
|
}
|
|
|
|
vga_switcheroo_unregister_client(dev->pdev);
|
|
vga_client_register(dev->pdev, NULL, NULL, NULL);
|
|
}
|
|
|
|
/* Free error state after interrupts are fully disabled. */
|
|
del_timer_sync(&dev_priv->gpu_error.hangcheck_timer);
|
|
cancel_work_sync(&dev_priv->gpu_error.work);
|
|
i915_destroy_error_state(dev);
|
|
|
|
if (dev->pdev->msi_enabled)
|
|
pci_disable_msi(dev->pdev);
|
|
|
|
intel_opregion_fini(dev);
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
/* Flush any outstanding unpin_work. */
|
|
flush_workqueue(dev_priv->wq);
|
|
|
|
mutex_lock(&dev->struct_mutex);
|
|
i915_gem_free_all_phys_object(dev);
|
|
i915_gem_cleanup_ringbuffer(dev);
|
|
i915_gem_context_fini(dev);
|
|
mutex_unlock(&dev->struct_mutex);
|
|
i915_gem_cleanup_aliasing_ppgtt(dev);
|
|
i915_gem_cleanup_stolen(dev);
|
|
|
|
if (!I915_NEED_GFX_HWS(dev))
|
|
i915_free_hws(dev);
|
|
}
|
|
|
|
if (dev_priv->regs != NULL)
|
|
pci_iounmap(dev->pdev, dev_priv->regs);
|
|
|
|
intel_teardown_gmbus(dev);
|
|
intel_teardown_mchbar(dev);
|
|
|
|
destroy_workqueue(dev_priv->wq);
|
|
pm_qos_remove_request(&dev_priv->pm_qos);
|
|
|
|
if (dev_priv->slab)
|
|
kmem_cache_destroy(dev_priv->slab);
|
|
|
|
pci_dev_put(dev_priv->bridge_dev);
|
|
kfree(dev->dev_private);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int i915_driver_open(struct drm_device *dev, struct drm_file *file)
|
|
{
|
|
struct drm_i915_file_private *file_priv;
|
|
|
|
DRM_DEBUG_DRIVER("\n");
|
|
file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
|
|
if (!file_priv)
|
|
return -ENOMEM;
|
|
|
|
file->driver_priv = file_priv;
|
|
|
|
spin_lock_init(&file_priv->mm.lock);
|
|
INIT_LIST_HEAD(&file_priv->mm.request_list);
|
|
|
|
idr_init(&file_priv->context_idr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i915_driver_lastclose - clean up after all DRM clients have exited
|
|
* @dev: DRM device
|
|
*
|
|
* Take care of cleaning up after all DRM clients have exited. In the
|
|
* mode setting case, we want to restore the kernel's initial mode (just
|
|
* in case the last client left us in a bad state).
|
|
*
|
|
* Additionally, in the non-mode setting case, we'll tear down the GTT
|
|
* and DMA structures, since the kernel won't be using them, and clea
|
|
* up any GEM state.
|
|
*/
|
|
void i915_driver_lastclose(struct drm_device * dev)
|
|
{
|
|
drm_i915_private_t *dev_priv = dev->dev_private;
|
|
|
|
/* On gen6+ we refuse to init without kms enabled, but then the drm core
|
|
* goes right around and calls lastclose. Check for this and don't clean
|
|
* up anything. */
|
|
if (!dev_priv)
|
|
return;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
|
|
intel_fb_restore_mode(dev);
|
|
vga_switcheroo_process_delayed_switch();
|
|
return;
|
|
}
|
|
|
|
i915_gem_lastclose(dev);
|
|
|
|
i915_dma_cleanup(dev);
|
|
}
|
|
|
|
void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
|
|
{
|
|
i915_gem_context_close(dev, file_priv);
|
|
i915_gem_release(dev, file_priv);
|
|
}
|
|
|
|
void i915_driver_postclose(struct drm_device *dev, struct drm_file *file)
|
|
{
|
|
struct drm_i915_file_private *file_priv = file->driver_priv;
|
|
|
|
kfree(file_priv);
|
|
}
|
|
|
|
struct drm_ioctl_desc i915_ioctls[] = {
|
|
DRM_IOCTL_DEF_DRV(I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_FLIP, i915_flip_bufs, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_ALLOC, drm_noop, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_FREE, drm_noop, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_INIT_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
|
|
DRM_IOCTL_DEF_DRV(I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_SET_CACHING, i915_gem_set_caching_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_GET_CACHING, i915_gem_get_caching_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_CREATE, i915_gem_create_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY, intel_sprite_get_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_WAIT, i915_gem_wait_ioctl, DRM_AUTH|DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_CREATE, i915_gem_context_create_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_GEM_CONTEXT_DESTROY, i915_gem_context_destroy_ioctl, DRM_UNLOCKED),
|
|
DRM_IOCTL_DEF_DRV(I915_REG_READ, i915_reg_read_ioctl, DRM_UNLOCKED),
|
|
};
|
|
|
|
int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
|
|
|
|
/*
|
|
* This is really ugly: Because old userspace abused the linux agp interface to
|
|
* manage the gtt, we need to claim that all intel devices are agp. For
|
|
* otherwise the drm core refuses to initialize the agp support code.
|
|
*/
|
|
int i915_driver_device_is_agp(struct drm_device * dev)
|
|
{
|
|
return 1;
|
|
}
|