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path: root/drivers/char/drm/i915_dma.c
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Diffstat (limited to 'drivers/char/drm/i915_dma.c')
-rw-r--r--drivers/char/drm/i915_dma.c124
1 files changed, 63 insertions, 61 deletions
diff --git a/drivers/char/drm/i915_dma.c b/drivers/char/drm/i915_dma.c
index e61a43e5b3ac..43986d81ae34 100644
--- a/drivers/char/drm/i915_dma.c
+++ b/drivers/char/drm/i915_dma.c
@@ -31,17 +31,6 @@
#include "i915_drm.h"
#include "i915_drv.h"
-#define IS_I965G(dev) (dev->pci_device == 0x2972 || \
- dev->pci_device == 0x2982 || \
- dev->pci_device == 0x2992 || \
- dev->pci_device == 0x29A2 || \
- dev->pci_device == 0x2A02 || \
- dev->pci_device == 0x2A12)
-
-#define IS_G33(dev) (dev->pci_device == 0x29b2 || \
- dev->pci_device == 0x29c2 || \
- dev->pci_device == 0x29d2)
-
/* 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
* the head pointer changes, so that EBUSY only happens if the ring
@@ -90,6 +79,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
static int i915_dma_cleanup(struct drm_device * dev)
{
+ drm_i915_private_t *dev_priv = dev->dev_private;
/* Make sure interrupts are disabled here because the uninstall ioctl
* may not have been called from userspace and after dev_private
* is freed, it's too late.
@@ -97,52 +87,42 @@ static int i915_dma_cleanup(struct drm_device * dev)
if (dev->irq)
drm_irq_uninstall(dev);
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv =
- (drm_i915_private_t *) dev->dev_private;
-
- if (dev_priv->ring.virtual_start) {
- drm_core_ioremapfree(&dev_priv->ring.map, dev);
- }
-
- if (dev_priv->status_page_dmah) {
- drm_pci_free(dev, dev_priv->status_page_dmah);
- /* Need to rewrite hardware status page */
- I915_WRITE(0x02080, 0x1ffff000);
- }
-
- if (dev_priv->status_gfx_addr) {
- dev_priv->status_gfx_addr = 0;
- drm_core_ioremapfree(&dev_priv->hws_map, dev);
- I915_WRITE(0x2080, 0x1ffff000);
- }
+ if (dev_priv->ring.virtual_start) {
+ drm_core_ioremapfree(&dev_priv->ring.map, dev);
+ dev_priv->ring.virtual_start = 0;
+ dev_priv->ring.map.handle = 0;
+ dev_priv->ring.map.size = 0;
+ }
- drm_free(dev->dev_private, sizeof(drm_i915_private_t),
- DRM_MEM_DRIVER);
+ if (dev_priv->status_page_dmah) {
+ drm_pci_free(dev, dev_priv->status_page_dmah);
+ dev_priv->status_page_dmah = NULL;
+ /* Need to rewrite hardware status page */
+ I915_WRITE(0x02080, 0x1ffff000);
+ }
- dev->dev_private = NULL;
+ if (dev_priv->status_gfx_addr) {
+ dev_priv->status_gfx_addr = 0;
+ drm_core_ioremapfree(&dev_priv->hws_map, dev);
+ I915_WRITE(0x2080, 0x1ffff000);
}
return 0;
}
-static int i915_initialize(struct drm_device * dev,
- drm_i915_private_t * dev_priv,
- drm_i915_init_t * init)
+static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
{
- memset(dev_priv, 0, sizeof(drm_i915_private_t));
+ drm_i915_private_t *dev_priv = dev->dev_private;
dev_priv->sarea = drm_getsarea(dev);
if (!dev_priv->sarea) {
DRM_ERROR("can not find sarea!\n");
- dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
return -EINVAL;
}
dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
if (!dev_priv->mmio_map) {
- dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
DRM_ERROR("can not find mmio map!\n");
return -EINVAL;
@@ -165,7 +145,6 @@ static int i915_initialize(struct drm_device * dev,
drm_core_ioremap(&dev_priv->ring.map, dev);
if (dev_priv->ring.map.handle == NULL) {
- dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
@@ -197,7 +176,6 @@ static int i915_initialize(struct drm_device * dev,
drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
if (!dev_priv->status_page_dmah) {
- dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
DRM_ERROR("Can not allocate hardware status page\n");
return -ENOMEM;
@@ -209,7 +187,6 @@ static int i915_initialize(struct drm_device * dev,
I915_WRITE(0x02080, dev_priv->dma_status_page);
}
DRM_DEBUG("Enabled hardware status page\n");
- dev->dev_private = (void *)dev_priv;
return 0;
}
@@ -254,17 +231,12 @@ static int i915_dma_resume(struct drm_device * dev)
static int i915_dma_init(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- drm_i915_private_t *dev_priv;
drm_i915_init_t *init = data;
int retcode = 0;
switch (init->func) {
case I915_INIT_DMA:
- dev_priv = drm_alloc(sizeof(drm_i915_private_t),
- DRM_MEM_DRIVER);
- if (dev_priv == NULL)
- return -ENOMEM;
- retcode = i915_initialize(dev, dev_priv, init);
+ retcode = i915_initialize(dev, init);
break;
case I915_CLEANUP_DMA:
retcode = i915_dma_cleanup(dev);
@@ -351,7 +323,7 @@ static int validate_cmd(int cmd)
{
int ret = do_validate_cmd(cmd);
-/* printk("validate_cmd( %x ): %d\n", cmd, ret); */
+/* printk("validate_cmd( %x ): %d\n", cmd, ret); */
return ret;
}
@@ -685,7 +657,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
int value;
if (!dev_priv) {
- DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+ DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
@@ -719,7 +691,7 @@ static int i915_setparam(struct drm_device *dev, void *data,
drm_i915_setparam_t *param = data;
if (!dev_priv) {
- DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+ DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
@@ -749,7 +721,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
drm_i915_hws_addr_t *hws = data;
if (!dev_priv) {
- DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
+ DRM_ERROR("called with no initialization\n");
return -EINVAL;
}
@@ -757,7 +729,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
- dev_priv->hws_map.offset = dev->agp->agp_info.aper_base + hws->addr;
+ dev_priv->hws_map.offset = dev->agp->base + hws->addr;
dev_priv->hws_map.size = 4*1024;
dev_priv->hws_map.type = 0;
dev_priv->hws_map.flags = 0;
@@ -765,7 +737,6 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
drm_core_ioremap(&dev_priv->hws_map, dev);
if (dev_priv->hws_map.handle == NULL) {
- dev->dev_private = (void *)dev_priv;
i915_dma_cleanup(dev);
dev_priv->status_gfx_addr = 0;
DRM_ERROR("can not ioremap virtual address for"
@@ -784,6 +755,10 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
int i915_driver_load(struct drm_device *dev, unsigned long flags)
{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ unsigned long base, size;
+ int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
+
/* i915 has 4 more counters */
dev->counters += 4;
dev->types[6] = _DRM_STAT_IRQ;
@@ -791,24 +766,51 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
dev->types[8] = _DRM_STAT_SECONDARY;
dev->types[9] = _DRM_STAT_DMA;
+ dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER);
+ if (dev_priv == NULL)
+ return -ENOMEM;
+
+ memset(dev_priv, 0, sizeof(drm_i915_private_t));
+
+ dev->dev_private = (void *)dev_priv;
+
+ /* Add register map (needed for suspend/resume) */
+ base = drm_get_resource_start(dev, mmio_bar);
+ size = drm_get_resource_len(dev, mmio_bar);
+
+ ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
+ _DRM_KERNEL | _DRM_DRIVER,
+ &dev_priv->mmio_map);
+ return ret;
+}
+
+int i915_driver_unload(struct drm_device *dev)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->mmio_map)
+ drm_rmmap(dev, dev_priv->mmio_map);
+
+ drm_free(dev->dev_private, sizeof(drm_i915_private_t),
+ DRM_MEM_DRIVER);
+
return 0;
}
void i915_driver_lastclose(struct drm_device * dev)
{
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv = dev->dev_private;
+ drm_i915_private_t *dev_priv = dev->dev_private;
+
+ if (dev_priv->agp_heap)
i915_mem_takedown(&(dev_priv->agp_heap));
- }
+
i915_dma_cleanup(dev);
}
void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
{
- if (dev->dev_private) {
- drm_i915_private_t *dev_priv = dev->dev_private;
- i915_mem_release(dev, file_priv, dev_priv->agp_heap);
- }
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ i915_mem_release(dev, file_priv, dev_priv->agp_heap);
}
struct drm_ioctl_desc i915_ioctls[] = {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 06:28:55 +0300