drm/radeon/kms: Use radeon_agp_disable when disabling AGP

Use same common function to disable agp so we replace the GART
callback by the proper one when we do so. This fix oops if
radeon_agp_init report failure.

This patch also move radeon_agp_init out of *_mc_init for r600
& rv770 so that we can have a similar behavior than for previous
hw, ie if agp_init fails it will fallback to GPU GART and disable
AGP.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 8760d66..62b27be 100644 (file)
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3399,9 +3399,7 @@ int r100_mc_init(struct radeon_device *rdev)
        if (rdev->flags & RADEON_IS_AGP) {
                r = radeon_agp_init(rdev);
                if (r) {
-                       printk(KERN_WARNING "[drm] Disabling AGP\n");
-                       rdev->flags &= ~RADEON_IS_AGP;
-                       rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+                       radeon_agp_disable(rdev);
                } else {
                        rdev->mc.gtt_location = rdev->mc.agp_base;
                }

diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 053404e..4526faa 100644 (file)
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -50,9 +50,7 @@ int r420_mc_init(struct radeon_device *rdev)
        if (rdev->flags & RADEON_IS_AGP) {
                r = radeon_agp_init(rdev);
                if (r) {
-                       printk(KERN_WARNING "[drm] Disabling AGP\n");
-                       rdev->flags &= ~RADEON_IS_AGP;
-                       rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
+                       radeon_agp_disable(rdev);
                } else {
                        rdev->mc.gtt_location = rdev->mc.agp_base;
                }

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 3e02dd4..b3713f6 100644 (file)
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -624,7 +624,6 @@ int r600_mc_init(struct radeon_device *rdev)
        fixed20_12 a;
        u32 tmp;
        int chansize, numchan;
-       int r;
 
        /* Get VRAM informations */
        rdev->mc.vram_is_ddr = true;
@@ -667,9 +666,6 @@ int r600_mc_init(struct radeon_device *rdev)
                rdev->mc.real_vram_size = rdev->mc.aper_size;
 
        if (rdev->flags & RADEON_IS_AGP) {
-               r = radeon_agp_init(rdev);
-               if (r)
-                       return r;
                /* gtt_size is setup by radeon_agp_init */
                rdev->mc.gtt_location = rdev->mc.agp_base;
                tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
@@ -2028,6 +2024,11 @@ int r600_init(struct radeon_device *rdev)
        r = radeon_fence_driver_init(rdev);
        if (r)
                return r;
+       if (rdev->flags & RADEON_IS_AGP) {
+               r = radeon_agp_init(rdev);
+               if (r)
+                       radeon_agp_disable(rdev);
+       }
        r = r600_mc_init(rdev);
        if (r)
                return r;

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index eb5f99b..ab37dd0 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1017,6 +1017,8 @@ static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
 #define radeon_hpd_set_polarity(rdev, hpd) (rdev)->asic->hpd_set_polarity((rdev), (hpd))
 
 /* Common functions */
+/* AGP */
+extern void radeon_agp_disable(struct radeon_device *rdev);
 extern int radeon_gart_table_vram_pin(struct radeon_device *rdev);
 extern int radeon_modeset_init(struct radeon_device *rdev);
 extern void radeon_modeset_fini(struct radeon_device *rdev);

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 0c51f8e..768b150 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -544,6 +544,7 @@ void radeon_agp_disable(struct radeon_device *rdev)
                rdev->asic->gart_tlb_flush = &r100_pci_gart_tlb_flush;
                rdev->asic->gart_set_page = &r100_pci_gart_set_page;
        }
+       rdev->mc.gtt_size = radeon_gart_size * 1024 * 1024;
 }
 
 void radeon_check_arguments(struct radeon_device *rdev)

diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 7f17ddf..eb065bb 100644 (file)
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -779,7 +779,6 @@ int rv770_mc_init(struct radeon_device *rdev)
        fixed20_12 a;
        u32 tmp;
        int chansize, numchan;
-       int r;
 
        /* Get VRAM informations */
        rdev->mc.vram_is_ddr = true;
@@ -822,9 +821,6 @@ int rv770_mc_init(struct radeon_device *rdev)
                rdev->mc.real_vram_size = rdev->mc.aper_size;
 
        if (rdev->flags & RADEON_IS_AGP) {
-               r = radeon_agp_init(rdev);
-               if (r)
-                       return r;
                /* gtt_size is setup by radeon_agp_init */
                rdev->mc.gtt_location = rdev->mc.agp_base;
                tmp = 0xFFFFFFFFUL - rdev->mc.agp_base - rdev->mc.gtt_size;
@@ -1039,6 +1035,11 @@ int rv770_init(struct radeon_device *rdev)
        r = radeon_fence_driver_init(rdev);
        if (r)
                return r;
+       if (rdev->flags & RADEON_IS_AGP) {
+               r = radeon_agp_init(rdev);
+               if (r)
+                       radeon_agp_disable(rdev);
+       }
        r = rv770_mc_init(rdev);
        if (r)
                return r;