179 lines
3.8 KiB
C
179 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NVKM_FBRAM_FUC_H__
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#define __NVKM_FBRAM_FUC_H__
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#include <subdev/fb.h>
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#include <subdev/pmu.h>
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struct ramfuc {
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struct nvkm_memx *memx;
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struct nvkm_fb *fb;
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int sequence;
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};
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struct ramfuc_reg {
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int sequence;
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bool force;
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u32 addr;
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u32 stride; /* in bytes */
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u32 mask;
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u32 data;
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};
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static inline struct ramfuc_reg
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ramfuc_stride(u32 addr, u32 stride, u32 mask)
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{
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return (struct ramfuc_reg) {
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.sequence = 0,
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.addr = addr,
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.stride = stride,
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.mask = mask,
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.data = 0xdeadbeef,
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};
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}
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static inline struct ramfuc_reg
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ramfuc_reg2(u32 addr1, u32 addr2)
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{
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return (struct ramfuc_reg) {
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.sequence = 0,
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.addr = addr1,
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.stride = addr2 - addr1,
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.mask = 0x3,
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.data = 0xdeadbeef,
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};
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}
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static noinline struct ramfuc_reg
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ramfuc_reg(u32 addr)
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{
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return (struct ramfuc_reg) {
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.sequence = 0,
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.addr = addr,
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.stride = 0,
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.mask = 0x1,
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.data = 0xdeadbeef,
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};
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}
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static inline int
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ramfuc_init(struct ramfuc *ram, struct nvkm_fb *fb)
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{
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int ret = nvkm_memx_init(fb->subdev.device->pmu, &ram->memx);
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if (ret)
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return ret;
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ram->sequence++;
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ram->fb = fb;
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return 0;
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}
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static inline int
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ramfuc_exec(struct ramfuc *ram, bool exec)
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{
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int ret = 0;
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if (ram->fb) {
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ret = nvkm_memx_fini(&ram->memx, exec);
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ram->fb = NULL;
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}
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return ret;
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}
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static inline u32
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ramfuc_rd32(struct ramfuc *ram, struct ramfuc_reg *reg)
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{
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struct nvkm_device *device = ram->fb->subdev.device;
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if (reg->sequence != ram->sequence)
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reg->data = nvkm_rd32(device, reg->addr);
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return reg->data;
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}
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static inline void
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ramfuc_wr32(struct ramfuc *ram, struct ramfuc_reg *reg, u32 data)
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{
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unsigned int mask, off = 0;
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reg->sequence = ram->sequence;
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reg->data = data;
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for (mask = reg->mask; mask > 0; mask = (mask & ~1) >> 1) {
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if (mask & 1)
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nvkm_memx_wr32(ram->memx, reg->addr+off, reg->data);
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off += reg->stride;
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}
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}
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static inline void
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ramfuc_nuke(struct ramfuc *ram, struct ramfuc_reg *reg)
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{
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reg->force = true;
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}
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static inline u32
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ramfuc_mask(struct ramfuc *ram, struct ramfuc_reg *reg, u32 mask, u32 data)
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{
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u32 temp = ramfuc_rd32(ram, reg);
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if (temp != ((temp & ~mask) | data) || reg->force) {
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ramfuc_wr32(ram, reg, (temp & ~mask) | data);
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reg->force = false;
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}
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return temp;
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}
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static inline void
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ramfuc_wait(struct ramfuc *ram, u32 addr, u32 mask, u32 data, u32 nsec)
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{
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nvkm_memx_wait(ram->memx, addr, mask, data, nsec);
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}
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static inline void
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ramfuc_nsec(struct ramfuc *ram, u32 nsec)
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{
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nvkm_memx_nsec(ram->memx, nsec);
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}
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static inline void
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ramfuc_wait_vblank(struct ramfuc *ram)
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{
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nvkm_memx_wait_vblank(ram->memx);
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}
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static inline void
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ramfuc_train(struct ramfuc *ram)
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{
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nvkm_memx_train(ram->memx);
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}
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static inline int
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ramfuc_train_result(struct nvkm_fb *fb, u32 *result, u32 rsize)
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{
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return nvkm_memx_train_result(fb->subdev.device->pmu, result, rsize);
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}
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static inline void
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ramfuc_block(struct ramfuc *ram)
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{
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nvkm_memx_block(ram->memx);
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}
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static inline void
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ramfuc_unblock(struct ramfuc *ram)
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{
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nvkm_memx_unblock(ram->memx);
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}
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#define ram_init(s,p) ramfuc_init(&(s)->base, (p))
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#define ram_exec(s,e) ramfuc_exec(&(s)->base, (e))
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#define ram_have(s,r) ((s)->r_##r.addr != 0x000000)
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#define ram_rd32(s,r) ramfuc_rd32(&(s)->base, &(s)->r_##r)
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#define ram_wr32(s,r,d) ramfuc_wr32(&(s)->base, &(s)->r_##r, (d))
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#define ram_nuke(s,r) ramfuc_nuke(&(s)->base, &(s)->r_##r)
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#define ram_mask(s,r,m,d) ramfuc_mask(&(s)->base, &(s)->r_##r, (m), (d))
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#define ram_wait(s,r,m,d,n) ramfuc_wait(&(s)->base, (r), (m), (d), (n))
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#define ram_nsec(s,n) ramfuc_nsec(&(s)->base, (n))
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#define ram_wait_vblank(s) ramfuc_wait_vblank(&(s)->base)
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#define ram_train(s) ramfuc_train(&(s)->base)
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#define ram_train_result(s,r,l) ramfuc_train_result((s), (r), (l))
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#define ram_block(s) ramfuc_block(&(s)->base)
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#define ram_unblock(s) ramfuc_unblock(&(s)->base)
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#endif
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