From: Ben Skeggs Date: Sat, 9 Jul 2016 00:41:01 +0000 (+1000) Subject: drm/nouveau/fb/gf100-: allow selection of an alternate big page size X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c73baa831fe5c035a41e52d75b763b3c942fa6d0;p=linux-beck.git drm/nouveau/fb/gf100-: allow selection of an alternate big page size GFxxx/GM1xx support the selection of 64/128KiB big pages globally. GM2xx supports the same, as well as another mode where the page size can be selected per-instance. We default to 128KiB pages (With per-instance for GM200, but the current code selects 128KiB there already) as the MMU code isn't currently able to handle otherwise. Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h index 0a734fd06acf..c2c002d18f55 100644 --- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h +++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h @@ -56,6 +56,8 @@ struct nvkm_fb { int regions; } tile; + u8 page; + struct nvkm_memory *mmu_rd; struct nvkm_memory *mmu_wr; }; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c index ce90242b8cce..4742e5ee37ac 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/base.c @@ -25,6 +25,7 @@ #include "ram.h" #include +#include #include #include #include @@ -134,6 +135,8 @@ nvkm_fb_init(struct nvkm_subdev *subdev) if (fb->func->init) fb->func->init(fb); + if (fb->func->init_page) + fb->func->init_page(fb); return 0; } @@ -171,6 +174,7 @@ nvkm_fb_ctor(const struct nvkm_fb_func *func, struct nvkm_device *device, nvkm_subdev_ctor(&nvkm_fb, device, index, &fb->subdev); fb->func = func; fb->tile.regions = fb->func->tile.regions; + fb->page = nvkm_longopt(device->cfgopt, "NvFbBigPage", 0); } int diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c index e649ead5ccfc..76433cc66fff 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c @@ -71,6 +71,22 @@ gf100_fb_oneinit(struct nvkm_fb *fb) return 0; } +void +gf100_fb_init_page(struct nvkm_fb *fb) +{ + struct nvkm_device *device = fb->subdev.device; + switch (fb->page) { + case 16: + nvkm_mask(device, 0x100c80, 0x00000001, 0x00000001); + break; + case 17: + default: + nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); + fb->page = 17; + break; + } +} + void gf100_fb_init(struct nvkm_fb *base) { @@ -79,8 +95,6 @@ gf100_fb_init(struct nvkm_fb *base) if (fb->r100c10_page) nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8); - - nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ } void * @@ -125,6 +139,7 @@ gf100_fb = { .dtor = gf100_fb_dtor, .oneinit = gf100_fb_oneinit, .init = gf100_fb_init, + .init_page = gf100_fb_init_page, .intr = gf100_fb_intr, .ram_new = gf100_ram_new, .memtype_valid = gf100_fb_memtype_valid, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c index b41f0f70038c..4245e2e6e604 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk104.c @@ -29,6 +29,7 @@ gk104_fb = { .dtor = gf100_fb_dtor, .oneinit = gf100_fb_oneinit, .init = gf100_fb_init, + .init_page = gf100_fb_init_page, .intr = gf100_fb_intr, .ram_new = gk104_ram_new, .memtype_valid = gf100_fb_memtype_valid, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk20a.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk20a.c index 7306f7dfc3b9..f815fe2bbf08 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk20a.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gk20a.c @@ -27,7 +27,6 @@ static void gk20a_fb_init(struct nvkm_fb *fb) { struct nvkm_device *device = fb->subdev.device; - nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */ nvkm_wr32(device, 0x100cc8, nvkm_memory_addr(fb->mmu_wr) >> 8); nvkm_wr32(device, 0x100ccc, nvkm_memory_addr(fb->mmu_rd) >> 8); } @@ -36,6 +35,7 @@ static const struct nvkm_fb_func gk20a_fb = { .oneinit = gf100_fb_oneinit, .init = gk20a_fb_init, + .init_page = gf100_fb_init_page, .memtype_valid = gf100_fb_memtype_valid, }; diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm107.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm107.c index 4869fdb753c9..db699025f546 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm107.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm107.c @@ -29,6 +29,7 @@ gm107_fb = { .dtor = gf100_fb_dtor, .oneinit = gf100_fb_oneinit, .init = gf100_fb_init, + .init_page = gf100_fb_init_page, .intr = gf100_fb_intr, .ram_new = gm107_ram_new, .memtype_valid = gf100_fb_memtype_valid, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.c index 44f5716f64d8..6af3b724f07b 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gm200.c @@ -26,6 +26,24 @@ #include +static void +gm200_fb_init_page(struct nvkm_fb *fb) +{ + struct nvkm_device *device = fb->subdev.device; + switch (fb->page) { + case 16: + nvkm_mask(device, 0x100c80, 0x00000801, 0x00000001); + break; + case 17: + nvkm_mask(device, 0x100c80, 0x00000801, 0x00000000); + break; + default: + nvkm_mask(device, 0x100c80, 0x00000800, 0x00000800); + fb->page = 0; + break; + } +} + static void gm200_fb_init(struct nvkm_fb *base) { @@ -48,6 +66,7 @@ gm200_fb = { .dtor = gf100_fb_dtor, .oneinit = gf100_fb_oneinit, .init = gm200_fb_init, + .init_page = gm200_fb_init_page, .intr = gf100_fb_intr, .ram_new = gm107_ram_new, .memtype_valid = gf100_fb_memtype_valid, diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h index d97d640e60a0..c93926c57310 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h @@ -8,6 +8,7 @@ struct nvkm_fb_func { void *(*dtor)(struct nvkm_fb *); int (*oneinit)(struct nvkm_fb *); void (*init)(struct nvkm_fb *); + void (*init_page)(struct nvkm_fb *); void (*intr)(struct nvkm_fb *); struct { @@ -60,5 +61,6 @@ void nv46_fb_tile_init(struct nvkm_fb *, int i, u32 addr, u32 size, u32 pitch, u32 flags, struct nvkm_fb_tile *); int gf100_fb_oneinit(struct nvkm_fb *); +void gf100_fb_init_page(struct nvkm_fb *); bool gf100_fb_memtype_valid(struct nvkm_fb *, u32); #endif