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path: root/drivers/gpu/drm/i915/i915_dma.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c120
1 files changed, 88 insertions, 32 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 50d1f782768c..5a49a1867b35 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -29,11 +29,11 @@
#include "drmP.h"
#include "drm.h"
#include "drm_crtc_helper.h"
+#include "drm_fb_helper.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"
-
-#define I915_DRV "i915_drv"
+#include <linux/vgaarb.h>
/* Really want an OS-independent resettable timer. Would like to have
* this loop run for (eg) 3 sec, but have the timer reset every time
@@ -80,6 +80,34 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
return -EBUSY;
}
+/* As a ringbuffer is only allowed to wrap between instructions, fill
+ * the tail with NOOPs.
+ */
+int i915_wrap_ring(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ volatile unsigned int *virt;
+ int rem;
+
+ rem = dev_priv->ring.Size - dev_priv->ring.tail;
+ if (dev_priv->ring.space < rem) {
+ int ret = i915_wait_ring(dev, rem, __func__);
+ if (ret)
+ return ret;
+ }
+ dev_priv->ring.space -= rem;
+
+ virt = (unsigned int *)
+ (dev_priv->ring.virtual_start + dev_priv->ring.tail);
+ rem /= 4;
+ while (rem--)
+ *virt++ = MI_NOOP;
+
+ dev_priv->ring.tail = 0;
+
+ return 0;
+}
+
/**
* Sets up the hardware status page for devices that need a physical address
* in the register.
@@ -101,7 +129,7 @@ static int i915_init_phys_hws(struct drm_device *dev)
memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
- DRM_DEBUG_DRIVER(I915_DRV, "Enabled hardware status page\n");
+ DRM_DEBUG_DRIVER("Enabled hardware status page\n");
return 0;
}
@@ -187,8 +215,7 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
master_priv->sarea_priv = (drm_i915_sarea_t *)
((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
} else {
- DRM_DEBUG_DRIVER(I915_DRV,
- "sarea not found assuming DRI2 userspace\n");
+ DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
}
if (init->ring_size != 0) {
@@ -200,7 +227,6 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
}
dev_priv->ring.Size = init->ring_size;
- dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
dev_priv->ring.map.offset = init->ring_start;
dev_priv->ring.map.size = init->ring_size;
@@ -238,7 +264,7 @@ static int i915_dma_resume(struct drm_device * dev)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- DRM_DEBUG_DRIVER(I915_DRV, "%s\n", __func__);
+ DRM_DEBUG_DRIVER("%s\n", __func__);
if (dev_priv->ring.map.handle == NULL) {
DRM_ERROR("can not ioremap virtual address for"
@@ -251,14 +277,14 @@ static int i915_dma_resume(struct drm_device * dev)
DRM_ERROR("Can not find hardware status page\n");
return -EINVAL;
}
- DRM_DEBUG_DRIVER(I915_DRV, "hw status page @ %p\n",
+ DRM_DEBUG_DRIVER("hw status page @ %p\n",
dev_priv->hw_status_page);
if (dev_priv->status_gfx_addr != 0)
I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
else
I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
- DRM_DEBUG_DRIVER(I915_DRV, "Enabled hardware status page\n");
+ DRM_DEBUG_DRIVER("Enabled hardware status page\n");
return 0;
}
@@ -552,7 +578,7 @@ static int i915_dispatch_flip(struct drm_device * dev)
if (!master_priv->sarea_priv)
return -EINVAL;
- DRM_DEBUG_DRIVER(I915_DRV, "%s: page=%d pfCurrentPage=%d\n",
+ DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
__func__,
dev_priv->current_page,
master_priv->sarea_priv->pf_current_page);
@@ -633,8 +659,7 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
return -EINVAL;
}
- DRM_DEBUG_DRIVER(I915_DRV,
- "i915 batchbuffer, start %x used %d cliprects %d\n",
+ 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);
@@ -681,8 +706,7 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
void *batch_data;
int ret;
- DRM_DEBUG_DRIVER(I915_DRV,
- "i915 cmdbuffer, buf %p sz %d cliprects %d\n",
+ DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -735,7 +759,7 @@ static int i915_flip_bufs(struct drm_device *dev, void *data,
{
int ret;
- DRM_DEBUG_DRIVER(I915_DRV, "%s\n", __func__);
+ DRM_DEBUG_DRIVER("%s\n", __func__);
RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
@@ -778,7 +802,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
break;
default:
- DRM_DEBUG_DRIVER(I915_DRV, "Unknown parameter %d\n",
+ DRM_DEBUG_DRIVER("Unknown parameter %d\n",
param->param);
return -EINVAL;
}
@@ -819,7 +843,7 @@ static int i915_setparam(struct drm_device *dev, void *data,
dev_priv->fence_reg_start = param->value;
break;
default:
- DRM_DEBUG_DRIVER(I915_DRV, "unknown parameter %d\n",
+ DRM_DEBUG_DRIVER("unknown parameter %d\n",
param->param);
return -EINVAL;
}
@@ -846,7 +870,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
return 0;
}
- DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr);
+ DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
@@ -868,13 +892,25 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
- DRM_DEBUG_DRIVER(I915_DRV, "load hws HWS_PGA with gfx mem 0x%x\n",
+ DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
dev_priv->status_gfx_addr);
- DRM_DEBUG_DRIVER(I915_DRV, "load hws at %p\n",
+ DRM_DEBUG_DRIVER("load hws at %p\n",
dev_priv->hw_status_page);
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;
+}
+
/**
* i915_probe_agp - get AGP bootup configuration
* @pdev: PCI device
@@ -888,20 +924,13 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
uint32_t *preallocated_size)
{
- struct pci_dev *bridge_dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
u16 tmp = 0;
unsigned long overhead;
unsigned long stolen;
- bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
- if (!bridge_dev) {
- DRM_ERROR("bridge device not found\n");
- return -1;
- }
-
/* Get the fb aperture size and "stolen" memory amount. */
- pci_read_config_word(bridge_dev, INTEL_GMCH_CTRL, &tmp);
- pci_dev_put(bridge_dev);
+ pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &tmp);
*aperture_size = 1024 * 1024;
*preallocated_size = 1024 * 1024;
@@ -984,6 +1013,19 @@ static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
return 0;
}
+/* 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 int i915_load_modeset_init(struct drm_device *dev,
unsigned long prealloc_size,
unsigned long agp_size)
@@ -1029,6 +1071,11 @@ static int i915_load_modeset_init(struct drm_device *dev,
if (ret)
DRM_INFO("failed to find VBIOS tables\n");
+ /* if we have > 1 VGA cards, then disable the radeon VGA resources */
+ ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
+ if (ret)
+ goto destroy_ringbuffer;
+
ret = drm_irq_install(dev);
if (ret)
goto destroy_ringbuffer;
@@ -1153,11 +1200,16 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
base = drm_get_resource_start(dev, mmio_bar);
size = drm_get_resource_len(dev, mmio_bar);
+ if (i915_get_bridge_dev(dev)) {
+ ret = -EIO;
+ goto free_priv;
+ }
+
dev_priv->regs = ioremap(base, size);
if (!dev_priv->regs) {
DRM_ERROR("failed to map registers\n");
ret = -EIO;
- goto free_priv;
+ goto put_bridge;
}
dev_priv->mm.gtt_mapping =
@@ -1269,6 +1321,8 @@ out_iomapfree:
io_mapping_free(dev_priv->mm.gtt_mapping);
out_rmmap:
iounmap(dev_priv->regs);
+put_bridge:
+ pci_dev_put(dev_priv->bridge_dev);
free_priv:
kfree(dev_priv);
return ret;
@@ -1289,6 +1343,7 @@ int i915_driver_unload(struct drm_device *dev)
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
drm_irq_uninstall(dev);
+ vga_client_register(dev->pdev, NULL, NULL, NULL);
}
if (dev->pdev->msi_enabled)
@@ -1312,6 +1367,7 @@ int i915_driver_unload(struct drm_device *dev)
i915_gem_lastclose(dev);
}
+ pci_dev_put(dev_priv->bridge_dev);
kfree(dev->dev_private);
return 0;
@@ -1321,7 +1377,7 @@ int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
{
struct drm_i915_file_private *i915_file_priv;
- DRM_DEBUG_DRIVER(I915_DRV, "\n");
+ DRM_DEBUG_DRIVER("\n");
i915_file_priv = (struct drm_i915_file_private *)
kmalloc(sizeof(*i915_file_priv), GFP_KERNEL);
@@ -1352,7 +1408,7 @@ void i915_driver_lastclose(struct drm_device * dev)
drm_i915_private_t *dev_priv = dev->dev_private;
if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
- intelfb_restore();
+ drm_fb_helper_restore();
return;
}