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_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 5f2a9e6..8968f78 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -47,6 +47,7 @@
void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
void r100_errata(struct radeon_device *rdev);
void r100_vram_info(struct radeon_device *rdev);
+void r100_vga_set_state(struct radeon_device *rdev, bool state);
int r100_gpu_reset(struct radeon_device *rdev);
int r100_mc_init(struct radeon_device *rdev);
void r100_mc_fini(struct radeon_device *rdev);
@@ -89,6 +90,7 @@
.init = &r100_init,
.errata = &r100_errata,
.vram_info = &r100_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r100_gpu_reset,
.mc_init = &r100_mc_init,
.mc_fini = &r100_mc_fini,
@@ -158,6 +160,7 @@
.init = &r300_init,
.errata = &r300_errata,
.vram_info = &r300_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r300_gpu_reset,
.mc_init = &r300_mc_init,
.mc_fini = &r300_mc_fini,
@@ -208,6 +211,7 @@
.resume = &r420_resume,
.errata = NULL,
.vram_info = NULL,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r300_gpu_reset,
.mc_init = NULL,
.mc_fini = NULL,
@@ -262,6 +266,7 @@
.init = &r300_init,
.errata = &rs400_errata,
.vram_info = &rs400_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r300_gpu_reset,
.mc_init = &rs400_mc_init,
.mc_fini = &rs400_mc_fini,
@@ -323,6 +328,7 @@
.init = &rs600_init,
.errata = &rs600_errata,
.vram_info = &rs600_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r300_gpu_reset,
.mc_init = &rs600_mc_init,
.mc_fini = &rs600_mc_fini,
@@ -372,6 +378,7 @@
.init = &rs600_init,
.errata = &rs690_errata,
.vram_info = &rs690_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &r300_gpu_reset,
.mc_init = &rs690_mc_init,
.mc_fini = &rs690_mc_fini,
@@ -428,6 +435,7 @@
.init = &rv515_init,
.errata = &rv515_errata,
.vram_info = &rv515_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &rv515_gpu_reset,
.mc_init = &rv515_mc_init,
.mc_fini = &rv515_mc_fini,
@@ -477,6 +485,7 @@
.init = &rv515_init,
.errata = &r520_errata,
.vram_info = &r520_vram_info,
+ .vga_set_state = &r100_vga_set_state,
.gpu_reset = &rv515_gpu_reset,
.mc_init = &r520_mc_init,
.mc_fini = &r520_mc_fini,
@@ -520,6 +529,7 @@
void r600_fini(struct radeon_device *rdev);
int r600_suspend(struct radeon_device *rdev);
int r600_resume(struct radeon_device *rdev);
+void r600_vga_set_state(struct radeon_device *rdev, bool state);
int r600_wb_init(struct radeon_device *rdev);
void r600_wb_fini(struct radeon_device *rdev);
void r600_cp_commit(struct radeon_device *rdev);
@@ -556,6 +566,7 @@
.resume = &r600_resume,
.cp_commit = &r600_cp_commit,
.vram_info = NULL,
+ .vga_set_state = &r600_vga_set_state,
.gpu_reset = &r600_gpu_reset,
.mc_init = NULL,
.mc_fini = NULL,
@@ -606,6 +617,7 @@
.cp_commit = &r600_cp_commit,
.vram_info = NULL,
.gpu_reset = &rv770_gpu_reset,
+ .vga_set_state = &r600_vga_set_state,
.mc_init = NULL,
.mc_fini = NULL,
.wb_init = &r600_wb_init,