[Mesa-dev] [PATCH 5/6] radeonsi: correct texture memory size for Z32F_S8X24

[Michel Dänzer]

From: Marek Olšák <maraeo at gmail.com>

[ Cherry-picked from r600g commit ea72351a919c594e7f40e901dca42aebb866f8a6 ]
---
 src/gallium/drivers/radeonsi/r600_texture.c |   22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/gallium/drivers/radeonsi/r600_texture.c b/src/gallium/drivers/radeonsi/r600_texture.c
index 3050be7..64d4b0e 100644
--- a/src/gallium/drivers/radeonsi/r600_texture.c
+++ b/src/gallium/drivers/radeonsi/r600_texture.c
@@ -73,7 +73,8 @@ static unsigned r600_texture_get_offset(struct r600_resource_texture *rtex,
 	       layer * rtex->surface.level[level].slice_size;
 }
 
-static int r600_init_surface(struct radeon_surface *surface,
+static int r600_init_surface(struct r600_screen *rscreen,
+			     struct radeon_surface *surface,
 			     const struct pipe_resource *ptex,
 			     unsigned array_mode,
 			     bool is_transfer, bool is_flushed_depth)
@@ -93,11 +94,18 @@ static int r600_init_surface(struct radeon_surface *surface,
 	surface->blk_d = 1;
 	surface->array_size = 1;
 	surface->last_level = ptex->last_level;
-	surface->bpe = util_format_get_blocksize(ptex->format);
-	/* align byte per element on dword */
-	if (surface->bpe == 3) {
-		surface->bpe = 4;
+
+	if (!is_transfer && !is_flushed_depth &&
+	    ptex->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT) {
+		surface->bpe = 4; /* stencil is allocated separately on evergreen */
+	} else {
+		surface->bpe = util_format_get_blocksize(ptex->format);
+		/* align byte per element on dword */
+		if (surface->bpe == 3) {
+			surface->bpe = 4;
+		}
 	}
+
 	surface->nsamples = 1;
 	surface->flags = 0;
 	switch (array_mode) {
@@ -520,7 +528,7 @@ struct pipe_resource *si_texture_create(struct pipe_screen *screen,
 	}
 #endif
 
-	r = r600_init_surface(&surface, templ, array_mode,
+	r = r600_init_surface(rscreen, &surface, templ, array_mode,
 			      templ->flags & R600_RESOURCE_FLAG_TRANSFER,
 			      templ->flags & R600_RESOURCE_FLAG_FLUSHED_DEPTH);
 	if (r) {
@@ -603,7 +611,7 @@ struct pipe_resource *si_texture_from_handle(struct pipe_screen *screen,
 	else
 		array_mode = V_009910_ARRAY_LINEAR_ALIGNED;
 
-	r = r600_init_surface(&surface, templ, array_mode, false, false);
+	r = r600_init_surface(rscreen, &surface, templ, array_mode, false, false);
 	if (r) {
 		return NULL;
 	}
-- 
1.7.10.4