@@ -26,6 +26,7 @@
#include "core.h"
#include "head.h"
#include "wndw.h"
+#include "handles.h"
#include <linux/dma-mapping.h>
#include <linux/hdmi.h>
@@ -153,7 +154,8 @@ nv50_dmac_create(struct nvif_device *device, struct nvif_object *disp,
if (!syncbuf)
return 0;
- ret = nvif_object_init(&dmac->base.user, 0xf0000000, NV_DMA_IN_MEMORY,
+ ret = nvif_object_init(&dmac->base.user, NV50_DISP_HANDLE_SYNCBUF,
+ NV_DMA_IN_MEMORY,
&(struct nv_dma_v0) {
.target = NV_DMA_V0_TARGET_VRAM,
.access = NV_DMA_V0_ACCESS_RDWR,
@@ -164,7 +166,8 @@ nv50_dmac_create(struct nvif_device *device, struct nvif_object *disp,
if (ret)
return ret;
- ret = nvif_object_init(&dmac->base.user, 0xf0000001, NV_DMA_IN_MEMORY,
+ ret = nvif_object_init(&dmac->base.user, NV50_DISP_HANDLE_VRAM,
+ NV_DMA_IN_MEMORY,
&(struct nv_dma_v0) {
.target = NV_DMA_V0_TARGET_VRAM,
.access = NV_DMA_V0_ACCESS_RDWR,
new file mode 100644
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: MIT */
+#ifndef __NV50_KMS_HANDLES_H__
+#define __NV50_KMS_HANDLES_H__
+
+/*
+ * Various hard-coded object handles that nouveau uses. These are made-up by
+ * nouveau developers, not Nvidia. The only significance of the handles chosen
+ * is that they must all be unique.
+ */
+#define NV50_DISP_HANDLE_SYNCBUF 0xf0000000
+#define NV50_DISP_HANDLE_VRAM 0xf0000001
+
+#define NV50_DISP_HANDLE_WNDW_CTX(kind) (0xfb000000 | kind)
+
+#endif /* !__NV50_KMS_HANDLES_H__ */
@@ -21,6 +21,7 @@
*/
#include "wndw.h"
#include "wimm.h"
+#include "handles.h"
#include <nvif/class.h>
#include <nvif/cl0002.h>
@@ -44,7 +45,7 @@ nv50_wndw_ctxdma_new(struct nv50_wndw *wndw, struct nouveau_framebuffer *fb)
struct nouveau_drm *drm = nouveau_drm(fb->base.dev);
struct nv50_wndw_ctxdma *ctxdma;
const u8 kind = fb->nvbo->kind;
- const u32 handle = 0xfb000000 | kind;
+ const u32 handle = NV50_DISP_HANDLE_WNDW_CTX(kind);
struct {
struct nv_dma_v0 base;
union {
While most of the functionality on Nvidia GPUs doesn't require using an explicit handle instead of the main VRAM handle + offset, there are a couple of places that do require explicit handles, such as CRC functionality. Since this means we're about to add another nouveau-chosen handle, let's just go ahead and move any hard-coded handles into a single header. This is just to keep things slightly organized, and to make it a little bit easier if we need to add more handles in the future. This patch should contain no functional changes. Signed-off-by: Lyude Paul <lyude@redhat.com> --- drivers/gpu/drm/nouveau/dispnv50/disp.c | 7 +++++-- drivers/gpu/drm/nouveau/dispnv50/handles.h | 15 +++++++++++++++ drivers/gpu/drm/nouveau/dispnv50/wndw.c | 3 ++- 3 files changed, 22 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/nouveau/dispnv50/handles.h