drm/nouveau/pwr/memx: Make FB disable and enable explicit
Needs to be done after wait-for-VBLANK, and NVA3 requires register writes in between. Rather than hard-coding register writes, just split out fb_disable and fb_enable. v2. Squashed "fb/ramnve0: disable fb before reclocking" Signed-off-by: Roy Spliet <rspliet@eclipso.eu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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@ -48,5 +48,7 @@ void nouveau_memx_wait(struct nouveau_memx *,
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u32 addr, u32 mask, u32 data, u32 nsec);
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void nouveau_memx_nsec(struct nouveau_memx *, u32 nsec);
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void nouveau_memx_wait_vblank(struct nouveau_memx *);
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void nouveau_memx_fb_disable(struct nouveau_memx *);
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void nouveau_memx_fb_enable(struct nouveau_memx *);
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#endif
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@ -111,6 +111,18 @@ ramfuc_wait_vblank(struct ramfuc *ram)
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nouveau_memx_wait_vblank(ram->memx);
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}
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static inline void
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ramfuc_fb_disable(struct ramfuc *ram)
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{
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nouveau_memx_fb_disable(ram->memx);
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}
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static inline void
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ramfuc_fb_enable(struct ramfuc *ram)
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{
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nouveau_memx_fb_enable(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[0] != 0x000000)
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@ -121,5 +133,7 @@ ramfuc_wait_vblank(struct ramfuc *ram)
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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_fb_disable(s) ramfuc_fb_disable(&(s)->base)
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#define ram_fb_enable(s) ramfuc_fb_enable(&(s)->base)
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#endif
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@ -998,6 +998,8 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
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if (ret)
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return ret;
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ram_fb_disable(fuc);
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ram->mode = (next->freq > fuc->refpll.vco1.max_freq) ? 2 : 1;
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ram->from = ram_rd32(fuc, 0x1373f4) & 0x0000000f;
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@ -1061,6 +1063,9 @@ nve0_ram_calc_xits(struct nouveau_fb *pfb, struct nouveau_ram_data *next)
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break;
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}
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if (!ret)
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ram_fb_enable(fuc);
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return ret;
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}
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@ -43,9 +43,9 @@ process(PROC_MEMX, #memx_init, #memx_recv)
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*/ .b32 func
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memx_func_head:
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handler(ENTER , 0x0000, 0x0000, #memx_func_enter)
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handler(FB_OFF, 0x0000, 0x0000, #memx_func_enter)
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memx_func_next:
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handler(LEAVE , 0x0000, 0x0000, #memx_func_leave)
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handler(FB_ON , 0x0000, 0x0000, #memx_func_leave)
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handler(WR32 , 0x0000, 0x0002, #memx_func_wr32)
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handler(WAIT , 0x0004, 0x0000, #memx_func_wait)
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handler(DELAY , 0x0001, 0x0000, #memx_func_delay)
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@ -19,8 +19,8 @@
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#define MEMX_MSG_EXEC 1
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/* MEMX: script opcode definitions */
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#define MEMX_ENTER 0
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#define MEMX_LEAVE 1
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#define MEMX_FB_OFF 0
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#define MEMX_FB_ON 1
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#define MEMX_WR32 2
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#define MEMX_WAIT 3
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#define MEMX_DELAY 4
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@ -62,7 +62,6 @@ nouveau_memx_init(struct nouveau_pwr *ppwr, struct nouveau_memx **pmemx)
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nv_wr32(ppwr, 0x10a580, 0x00000003);
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} while (nv_rd32(ppwr, 0x10a580) != 0x00000003);
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nv_wr32(ppwr, 0x10a1c0, 0x01000000 | memx->base);
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nv_wr32(ppwr, 0x10a1c4, 0x00010000 | MEMX_ENTER);
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return 0;
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}
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@ -78,7 +77,6 @@ nouveau_memx_fini(struct nouveau_memx **pmemx, bool exec)
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memx_out(memx);
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/* release data segment access */
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nv_wr32(ppwr, 0x10a1c4, 0x00000000 | MEMX_LEAVE);
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finish = nv_rd32(ppwr, 0x10a1c0) & 0x00ffffff;
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nv_wr32(ppwr, 0x10a580, 0x00000000);
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@ -150,4 +148,22 @@ nouveau_memx_wait_vblank(struct nouveau_memx *memx)
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memx_out(memx); /* fuc can't handle multiple */
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}
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void
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nouveau_memx_fb_disable(struct nouveau_memx *memx)
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{
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struct nouveau_pwr *ppwr = memx->ppwr;
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nv_debug(memx->ppwr, " FB OFF\n");
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nv_wr32(ppwr, 0x10a1c4, MEMX_FB_OFF);
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}
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void
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nouveau_memx_fb_enable(struct nouveau_memx *memx)
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{
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struct nouveau_pwr *ppwr = memx->ppwr;
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nv_debug(memx->ppwr, " FB ON\n");
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nv_wr32(ppwr, 0x10a1c4, MEMX_FB_ON);
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}
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#endif
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