From de1c4e281bda1b069b72a0b7fa2ab6fed585c70c Mon Sep 17 00:00:00 2001 From: Roy Spliet Date: Fri, 12 Sep 2014 18:00:14 +0200 Subject: [PATCH] drm/nv50/fb/ram: Store the number of partitions in the designated fields Signed-off-by: Roy Spliet Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/core/include/subdev/fb.h | 1 + .../gpu/drm/nouveau/core/subdev/fb/ramnv50.c | 18 ++++++++---------- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h index a0bd0ead90ab..507c3b44e560 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/fb.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/fb.h @@ -137,6 +137,7 @@ struct nouveau_ram { int ranks; int parts; + int part_mask; int (*get)(struct nouveau_fb *, u64 size, u32 align, u32 size_nc, u32 type, struct nouveau_mem **); diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c index 514b0785a019..64a983c96625 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv50.c @@ -319,27 +319,22 @@ nv50_ram_get(struct nouveau_fb *pfb, u64 size, u32 align, u32 ncmin, static u32 nv50_fb_vram_rblock(struct nouveau_fb *pfb, struct nouveau_ram *ram) { - int i, parts, colbits, rowbitsa, rowbitsb, banks; + int colbits, rowbitsa, rowbitsb, banks; u64 rowsize, predicted; - u32 r0, r4, rt, ru, rblock_size; + u32 r0, r4, rt, rblock_size; r0 = nv_rd32(pfb, 0x100200); r4 = nv_rd32(pfb, 0x100204); rt = nv_rd32(pfb, 0x100250); - ru = nv_rd32(pfb, 0x001540); - nv_debug(pfb, "memcfg 0x%08x 0x%08x 0x%08x 0x%08x\n", r0, r4, rt, ru); - - for (i = 0, parts = 0; i < 8; i++) { - if (ru & (0x00010000 << i)) - parts++; - } + nv_debug(pfb, "memcfg 0x%08x 0x%08x 0x%08x 0x%08x\n", r0, r4, rt, + nv_rd32(pfb, 0x001540)); colbits = (r4 & 0x0000f000) >> 12; rowbitsa = ((r4 & 0x000f0000) >> 16) + 8; rowbitsb = ((r4 & 0x00f00000) >> 20) + 8; banks = 1 << (((r4 & 0x03000000) >> 24) + 2); - rowsize = parts * banks * (1 << colbits) * 8; + rowsize = ram->parts * banks * (1 << colbits) * 8; predicted = rowsize << rowbitsa; if (r0 & 0x00000004) predicted += rowsize << rowbitsb; @@ -376,6 +371,9 @@ nv50_ram_create_(struct nouveau_object *parent, struct nouveau_object *engine, ram->size = nv_rd32(pfb, 0x10020c); ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32); + ram->part_mask = (nv_rd32(pfb, 0x001540) & 0x00ff0000) >> 16; + ram->parts = hweight8(ram->part_mask); + switch (nv_rd32(pfb, 0x100714) & 0x00000007) { case 0: ram->type = NV_MEM_TYPE_DDR1; break; case 1: