Only the two intel drivers need this and they can easily check for
working agp support in their driver ->load callbacks.
This is the only reason why agp initialization could fail, so allows
us to rip out a bit of error handling code in the next patch.
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/drm_pci.c | 5 -----
drivers/gpu/drm/i810/i810_dma.c | 4 ++++
drivers/gpu/drm/i810/i810_drv.c | 2 +-
drivers/gpu/drm/i915/i915_dma.c | 5 +++++
drivers/gpu/drm/i915/i915_drv.c | 5 ++---
include/drm/drmP.h | 1 -
6 files changed, 12 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index efadad850288..c99c71b3d220 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -267,11 +267,6 @@ static int drm_pci_agp_init(struct drm_device *dev)
if (drm_core_has_AGP(dev)) {
if (drm_pci_device_is_agp(dev))
dev->agp = drm_agp_init(dev);
- if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP)
- && (dev->agp == NULL)) {
- DRM_ERROR("Cannot initialize the agpgart module.\n");
- return -EINVAL;
- }
if (dev->agp) {
dev->agp->agp_mtrr = arch_phys_wc_add(
dev->agp->agp_info.aper_base,
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 249fdff305c6..aeace37415aa 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -1193,6 +1193,10 @@ static int i810_flip_bufs(struct drm_device *dev, void *data,
int i810_driver_load(struct drm_device *dev, unsigned long flags)
{
+ /* Our userspace depends upon the agp mapping support. */
+ if (!dev->agp)
+ return -EINVAL;
+
pci_set_master(dev->pdev);
return 0;
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index d8180d22cedd..441ccf8f5bdc 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -57,7 +57,7 @@ static const struct file_operations i810_driver_fops = {
static struct drm_driver driver = {
.driver_features =
- DRIVER_USE_AGP | DRIVER_REQUIRE_AGP |
+ DRIVER_USE_AGP |
DRIVER_HAVE_DMA,
.dev_priv_size = sizeof(drm_i810_buf_priv_t),
.load = i810_driver_load,
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 0cab2d045135..1244280946c2 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1476,7 +1476,12 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
return -ENODEV;
}
+ /* UMS needs agp support. */
+ if (!drm_core_check_feature(dev, DRIVER_MODESET) && !dev->agp)
+ return -EINVAL;
+
dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
+
if (dev_priv == NULL)
return -ENOMEM;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 989be12cdd6e..06600ac18716 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -833,8 +833,7 @@ static int i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
* (gasp!) to share buffers between X and the client. Hence we need to
* keep around the fake agp stuff for gen3, even when kms is enabled. */
if (intel_info->gen != 3) {
- driver.driver_features &=
- ~(DRIVER_USE_AGP | DRIVER_REQUIRE_AGP);
+ driver.driver_features &= ~DRIVER_USE_AGP;
} else if (!intel_agp_enabled) {
DRM_ERROR("drm/i915 can't work without intel_agp module!\n");
return -ENODEV;
@@ -946,7 +945,7 @@ static struct drm_driver driver = {
* deal with them for Intel hardware.
*/
.driver_features =
- DRIVER_USE_AGP | DRIVER_REQUIRE_AGP |
+ DRIVER_USE_AGP |
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM | DRIVER_PRIME |
DRIVER_RENDER,
.load = i915_driver_load,
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 8654a8b27fee..e4eb653ac4cd 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -136,7 +136,6 @@ int drm_err(const char *func, const char *format, ...);
/* driver capabilities and requirements mask */
#define DRIVER_USE_AGP 0x1
-#define DRIVER_REQUIRE_AGP 0x2
#define DRIVER_PCI_DMA 0x8
#define DRIVER_SG 0x10
#define DRIVER_HAVE_DMA 0x20
--
1.8.4.3
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