diff options
| author | Dave Airlie <airlied@redhat.com> | 2019-04-05 11:21:47 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2019-04-05 11:38:02 +1000 |
| commit | 14d2bd53a47a7e1cb3e03d00a6b952734cf90f3f (patch) | |
| tree | 616e11aacdf96d495bf6ef9c8163fb83cd5b712b /drivers/gpu/drm/lima/lima_vm.h | |
| parent | 5ebffda257731a11cf1db6c6142c82d5b30aec35 (diff) | |
| parent | f15a3ea80391e83f32d4a23f83b1f02415cd5889 (diff) | |
Merge tag 'drm-misc-next-2019-04-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.2:
UAPI Changes:
-syncobj: Add TIMELINE_WAIT|QUERY|TRANSFER|TIMELINE_SIGNAL ioctls (Chunming)
-Clarify that 1.0 can be represented by drm_color_lut (Daniel)
Cross-subsystem Changes:
-dt-bindings: Add binding for rk3066 hdmi (Johan)
-dt-bindings: Add binding for Feiyang FY07024DI26A30-D panel (Jagan)
-dt-bindings: Add Rocktech vendor prefix and jh057n00900 panel bindings (Guido)
-MAINTAINERS: Add lima and ASPEED entries (Joel & Qiang)
Core Changes:
-memory: use dma_alloc_coherent when mem encryption is active (Christian)
-dma_buf: add support for a dma_fence chain (Christian)
-shmem_gem: fix off-by-one bug in new shmem gem helpers (Dan)
Driver Changes:
-rockchip: Add support for rk3066 hdmi (Johan)
-ASPEED: Add driver supporting ASPEED BMC display controller to drm (Joel)
-lima: Add driver supporting Arm Mali4xx gpus to drm (Qiang)
-vc4/v3d: Various cleanups and improved error handling (Eric)
-panel: Add support for Feiyang FY07024DI26A30-D MIPI-DSI panel (Jagan)
-panel: Add support for Rocktech jh057n00900 MIPI-DSI panel (Guido)
Cc: Johan Jonker <jbx6244@gmail.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Chunming Zhou <david1.zhou@amd.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Qiang Yu <yuq825@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Guido Günther <agx@sigxcpu.org>
Cc: Joel Stanley <joel@jms.id.au>
[airlied: fixed XA limit build breakage, Rodrigo also submitted the same patch, but
I squashed it in the merge.]
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20190404201016.GA139524@art_vandelay
Diffstat (limited to 'drivers/gpu/drm/lima/lima_vm.h')
| -rw-r--r-- | drivers/gpu/drm/lima/lima_vm.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/lima/lima_vm.h b/drivers/gpu/drm/lima/lima_vm.h new file mode 100644 index 000000000000..caee2f8a29b4 --- /dev/null +++ b/drivers/gpu/drm/lima/lima_vm.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0 OR MIT */ +/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */ + +#ifndef __LIMA_VM_H__ +#define __LIMA_VM_H__ + +#include <drm/drm_mm.h> +#include <linux/kref.h> + +#define LIMA_PAGE_SIZE 4096 +#define LIMA_PAGE_MASK (LIMA_PAGE_SIZE - 1) +#define LIMA_PAGE_ENT_NUM (LIMA_PAGE_SIZE / sizeof(u32)) + +#define LIMA_VM_NUM_PT_PER_BT_SHIFT 3 +#define LIMA_VM_NUM_PT_PER_BT (1 << LIMA_VM_NUM_PT_PER_BT_SHIFT) +#define LIMA_VM_NUM_BT (LIMA_PAGE_ENT_NUM >> LIMA_VM_NUM_PT_PER_BT_SHIFT) + +#define LIMA_VA_RESERVE_START 0xFFF00000 +#define LIMA_VA_RESERVE_DLBU LIMA_VA_RESERVE_START +#define LIMA_VA_RESERVE_END 0x100000000 + +struct lima_device; + +struct lima_vm_page { + u32 *cpu; + dma_addr_t dma; +}; + +struct lima_vm { + struct mutex lock; + struct kref refcount; + + struct drm_mm mm; + + struct lima_device *dev; + + struct lima_vm_page pd; + struct lima_vm_page bts[LIMA_VM_NUM_BT]; +}; + +int lima_vm_bo_add(struct lima_vm *vm, struct lima_bo *bo, bool create); +void lima_vm_bo_del(struct lima_vm *vm, struct lima_bo *bo); + +u32 lima_vm_get_va(struct lima_vm *vm, struct lima_bo *bo); + +struct lima_vm *lima_vm_create(struct lima_device *dev); +void lima_vm_release(struct kref *kref); + +static inline struct lima_vm *lima_vm_get(struct lima_vm *vm) +{ + kref_get(&vm->refcount); + return vm; +} + +static inline void lima_vm_put(struct lima_vm *vm) +{ + kref_put(&vm->refcount, lima_vm_release); +} + +void lima_vm_print(struct lima_vm *vm); + +#endif |