drm/vgaarb: add VGA arbitration support to the drm and kms.
VGA arb requires DRM support for non-kms drivers, to turn on/off
irqs when disabling the mem/io regions.
VGA arb requires KMS support for GPUs where we can turn off VGA
decoding. Currently we know how to do this for intel and radeon
kms drivers, which allows them to be removed from the arbiter.
This patch comes from Fedora rawhide kernel.
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 817af8e..c839b60 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -596,6 +596,7 @@
int (*suspend)(struct radeon_device *rdev);
void (*errata)(struct radeon_device *rdev);
void (*vram_info)(struct radeon_device *rdev);
+ void (*vga_set_state)(struct radeon_device *rdev, bool state);
int (*gpu_reset)(struct radeon_device *rdev);
int (*mc_init)(struct radeon_device *rdev);
void (*mc_fini)(struct radeon_device *rdev);
@@ -954,6 +955,7 @@
#define radeon_cs_parse(p) rdev->asic->cs_parse((p))
#define radeon_errata(rdev) (rdev)->asic->errata((rdev))
#define radeon_vram_info(rdev) (rdev)->asic->vram_info((rdev))
+#define radeon_vga_set_state(rdev, state) (rdev)->asic->vga_set_state((rdev), (state))
#define radeon_gpu_reset(rdev) (rdev)->asic->gpu_reset((rdev))
#define radeon_mc_init(rdev) (rdev)->asic->mc_init((rdev))
#define radeon_mc_fini(rdev) (rdev)->asic->mc_fini((rdev))