Older Tegra GPUs use a different sector bit
swizzling layout than desktop and Xavier GPUs.
Hence their format modifiers must be
differentiated from those of other GPUs. As
a precursor to supporting more expressive
block linear format modifiers, deduce the
sector layout used for a given GPU from its
chipset and stash the layout in the nouveau
screen structure.
Signed-off-by: James Jones <jajo...@nvidia.com>
---
src/gallium/drivers/nouveau/nouveau_screen.c | 12 ++++++++++++
src/gallium/drivers/nouveau/nouveau_screen.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.c
b/src/gallium/drivers/nouveau/nouveau_screen.c
index de9cce3812a..f63af6313e4 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.c
+++ b/src/gallium/drivers/nouveau/nouveau_screen.c
@@ -213,6 +213,18 @@ nouveau_screen_init(struct nouveau_screen *screen, struct
nouveau_device *dev)
size = sizeof(nvc0_data);
}
+ switch (dev->chipset) {
+ case 0x0ea: /* TK1, GK20A */
+ case 0x12b: /* TX1, GM20B */
+ case 0x13b: /* TX2, GP10B */
+ screen->tegra_sector_layout = true;
+ break;
+ default:
+ /* Xavier's GPU and everything else */
+ screen->tegra_sector_layout = false;
+ break;
+ }
+
/*
* Set default VRAM domain if not overridden
*/
diff --git a/src/gallium/drivers/nouveau/nouveau_screen.h
b/src/gallium/drivers/nouveau/nouveau_screen.h
index 40464225c75..0abaf4db0f5 100644
--- a/src/gallium/drivers/nouveau/nouveau_screen.h
+++ b/src/gallium/drivers/nouveau/nouveau_screen.h
@@ -58,6 +58,7 @@ struct nouveau_screen {
int64_t cpu_gpu_time_delta;
bool hint_buf_keep_sysmem_copy;
+ bool tegra_sector_layout;
unsigned vram_domain;
--
2.17.1
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