gpu: Move DRM buddy allocator one level up (part two)

Move the DRM buddy allocator one level up so that it can be used by GPU
drivers (example, nova-core) that have usecases other than DRM (such as
VFIO vGPU support). Modify the API, structures and Kconfigs to use
"gpu_buddy" terminology. Adapt the drivers and tests to use the new API.

The commit cannot be split due to bisectability, however no functional
change is intended. Verified by running K-UNIT tests and build tested
various configurations.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
[airlied: I've split this into two so git can find copies easier.
I've also just nuked drm_random library, that stuff needs to be done
elsewhere and only the buddy tests seem to be using it].
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 8 insertions, 8 deletions

diff --git a/drivers/gpu/tests/gpu_random.c b/drivers/gpu/tests/gpu_random.c
index ddd1f594b5d5..6356372f7e52 100644
--- a/drivers/gpu/tests/gpu_random.c
+++ b/drivers/gpu/tests/gpu_random.c
@@ -8,26 +8,26 @@
 
 #include "gpu_random.h"
 
-u32 drm_prandom_u32_max_state(u32 ep_ro, struct rnd_state *state)
+u32 gpu_prandom_u32_max_state(u32 ep_ro, struct rnd_state *state)
 {
 	return upper_32_bits((u64)prandom_u32_state(state) * ep_ro);
 }
-EXPORT_SYMBOL(drm_prandom_u32_max_state);
+EXPORT_SYMBOL(gpu_prandom_u32_max_state);
 
-void drm_random_reorder(unsigned int *order, unsigned int count,
+void gpu_random_reorder(unsigned int *order, unsigned int count,
 			struct rnd_state *state)
 {
 	unsigned int i, j;
 
 	for (i = 0; i < count; ++i) {
 		BUILD_BUG_ON(sizeof(unsigned int) > sizeof(u32));
-		j = drm_prandom_u32_max_state(count, state);
+		j = gpu_prandom_u32_max_state(count, state);
 		swap(order[i], order[j]);
 	}
 }
-EXPORT_SYMBOL(drm_random_reorder);
+EXPORT_SYMBOL(gpu_random_reorder);
 
-unsigned int *drm_random_order(unsigned int count, struct rnd_state *state)
+unsigned int *gpu_random_order(unsigned int count, struct rnd_state *state)
 {
 	unsigned int *order, i;
 
@@ -38,7 +38,7 @@ unsigned int *drm_random_order(unsigned int count, struct rnd_state *state)
 	for (i = 0; i < count; i++)
 		order[i] = i;
 
-	drm_random_reorder(order, count, state);
+	gpu_random_reorder(order, count, state);
 	return order;
 }
-EXPORT_SYMBOL(drm_random_order);
+EXPORT_SYMBOL(gpu_random_order);