[PATCH 030/100] drm/amdgpu: Add MTYPE flags to GPU VM IOCTL interface

[Alex Deucher]

From: Alex Xie <AlexBin.Xie at amd.com>

Signed-off-by: Alex Xie <AlexBin.Xie at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c |  2 +-
 include/uapi/drm/amdgpu_drm.h           | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index ba9077b..f9bea8b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -557,7 +557,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 {
 	const uint32_t valid_flags = AMDGPU_VM_DELAY_UPDATE |
 		AMDGPU_VM_PAGE_READABLE | AMDGPU_VM_PAGE_WRITEABLE |
-		AMDGPU_VM_PAGE_EXECUTABLE;
+		AMDGPU_VM_PAGE_EXECUTABLE | AMDGPU_VM_MTYPE_MASK;
 	const uint32_t prt_flags = AMDGPU_VM_DELAY_UPDATE |
 		AMDGPU_VM_PAGE_PRT;
 
diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h
index dd6c934..d4ad2a1 100644
--- a/include/uapi/drm/amdgpu_drm.h
+++ b/include/uapi/drm/amdgpu_drm.h
@@ -365,6 +365,18 @@ struct drm_amdgpu_gem_op {
 #define AMDGPU_VM_PAGE_EXECUTABLE	(1 << 3)
 /* partially resident texture */
 #define AMDGPU_VM_PAGE_PRT		(1 << 4)
+/* MTYPE flags use bit 5 to 8 */
+#define AMDGPU_VM_MTYPE_MASK		(0xf << 5)
+/* Default MTYPE. Pre-AI must use this.  Recommended for newer ASICs. */
+#define AMDGPU_VM_MTYPE_DEFAULT		(0 << 5)
+/* Use NC MTYPE instead of default MTYPE */
+#define AMDGPU_VM_MTYPE_NC		(1 << 5)
+/* Use WC MTYPE instead of default MTYPE */
+#define AMDGPU_VM_MTYPE_WC		(2 << 5)
+/* Use CC MTYPE instead of default MTYPE */
+#define AMDGPU_VM_MTYPE_CC		(3 << 5)
+/* Use UC MTYPE instead of default MTYPE */
+#define AMDGPU_VM_MTYPE_UC		(4 << 5)
 
 struct drm_amdgpu_gem_va {
 	/** GEM object handle */
-- 
2.5.5