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Commit fd3a5225 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nv20/fb: fixup compression tag allocation size 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent fafa0cb3

drivers/gpu/drm/nouveau/core/include/subdev/fb.h

+2 −0
Original line number Diff line number Diff line
@@ -69,7 +69,9 @@ struct nouveau_fb { 
		} type;

		u64 stolen;

		u64 size;



		int ranks;

		int parts;



		int  (*init)(struct nouveau_fb *);

		int  (*get)(struct nouveau_fb *, u64 size, u32 align,

drivers/gpu/drm/nouveau/core/subdev/fb/nv20.c

+9 −15
Original line number Diff line number Diff line
@@ -41,7 +41,8 @@ nv20_fb_vram_init(struct nouveau_fb *pfb) 
	case 0x00000200: pfb->ram.type = NV_MEM_TYPE_GDDR3; break;

	case 0x00000300: pfb->ram.type = NV_MEM_TYPE_GDDR2; break;

	}

	pfb->ram.size = nv_rd32(pfb, 0x10020c) & 0xff000000;

	pfb->ram.size  = (nv_rd32(pfb, 0x10020c) & 0xff000000);

	pfb->ram.parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;



	return nv_rd32(pfb, 0x100320);

}
@@ -63,20 +64,13 @@ static void 
nv20_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,

		  struct nouveau_fb_tile *tile)

{

	int bpp = (flags & 2) ? 32 : 16;



	/* Allocate some of the on-die tag memory, used to store Z

	 * compression meta-data (most likely just a bitmap determining

	 * if a given tile is compressed or not).

	 */

	size /= 256;



	if (!nouveau_mm_head(&pfb->tags, 1, size, size, 1, &tile->tag)) {

		/* Enable Z compression */

		tile->zcomp = tile->tag->offset;

		tile->zcomp |= 0x80000000;

		if (bpp != 16)

			tile->zcomp |= 0x04000000;

	u32 tiles = DIV_ROUND_UP(size, 0x40);

	u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);

	if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {

		if (!(flags & 2)) tile->zcomp = 0x00000000; /* Z16 */

		else              tile->zcomp = 0x04000000; /* Z24S8 */

		tile->zcomp |= tile->tag->offset;

		tile->zcomp |= 0x80000000; /* enable */

#ifdef __BIG_ENDIAN

		tile->zcomp |= 0x08000000;

#endif

drivers/gpu/drm/nouveau/core/subdev/fb/nv25.c

+6 −15
Original line number Diff line number Diff line
@@ -34,21 +34,12 @@ static void 
nv25_fb_tile_comp(struct nouveau_fb *pfb, int i, u32 size, u32 flags,

		  struct nouveau_fb_tile *tile)

{

	int bpp = (flags & 2) ? 32 : 16;



	/* Allocate some of the on-die tag memory, used to store Z

	 * compression meta-data (most likely just a bitmap determining

	 * if a given tile is compressed or not).

	 */

	size /= 256;



	if (!nouveau_mm_head(&pfb->tags, 1, size, size, 1, &tile->tag)) {

		/* Enable Z compression */

		tile->zcomp = tile->tag->offset;

		if (bpp == 16)

			tile->zcomp |= 0x00100000;

		else

			tile->zcomp |= 0x00200000;

	u32 tiles = DIV_ROUND_UP(size, 0x40);

	u32 tags  = round_up(tiles / pfb->ram.parts, 0x40);

	if (!nouveau_mm_head(&pfb->tags, 1, tags, tags, 1, &tile->tag)) {

		if (!(flags & 2)) tile->zcomp = 0x00100000; /* Z16 */

		else              tile->zcomp = 0x00200000; /* Z24S8 */

		tile->zcomp |= tile->tag->offset;

#ifdef __BIG_ENDIAN

		tile->zcomp |= 0x01000000;

#endif