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authorTom Stellard <thomas.stellard@amd.com>2012-03-20 13:33:37 -0400
committerTom Stellard <thomas.stellard@amd.com>2012-03-20 13:33:37 -0400
commit394778d2327dda4cc32b67683d5165e9274a567e (patch)
treef055391a5cddfaa5901a10061ea02f7f82df0f99
parent2893722f58c2b9d15f795b513bc46bd601ef46a2 (diff)
winsys/radeon: Get max_pipes from the kernel
-rw-r--r--src/gallium/winsys/radeon/drm/radeon_drm_winsys.c10
-rw-r--r--src/gallium/winsys/radeon/drm/radeon_winsys.h1
2 files changed, 11 insertions, 0 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index 051a390ed22..6ba69eece97 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -81,6 +81,10 @@
#define RADEON_INFO_IB_VM_MAX_SIZE 0x0f
#endif
+#ifndef RADEON_INFO_MAX_PIPES
+#define RADEON_INFO_MAX_PIPES 0x10
+#endif
+
/* Enable/disable feature access for one command stream.
* If enable == TRUE, return TRUE on success.
@@ -290,6 +294,12 @@ static boolean do_winsys_init(struct radeon_drm_winsys *ws)
}
}
+ /* Get max pipes, this is only needed for compute shaders. All evergreen+
+ * chips have at least 2 pipes, so we use 2 as a default. */
+ ws->info.r600_max_pipes = 2;
+ radeon_get_drm_value(ws->fd, RADEON_INFO_MAX_PIPES, NULL,
+ &ws->info.r600_max_pipes);
+
return TRUE;
}
diff --git a/src/gallium/winsys/radeon/drm/radeon_winsys.h b/src/gallium/winsys/radeon/drm/radeon_winsys.h
index ed3c719d9c7..028570dda9a 100644
--- a/src/gallium/winsys/radeon/drm/radeon_winsys.h
+++ b/src/gallium/winsys/radeon/drm/radeon_winsys.h
@@ -98,6 +98,7 @@ struct radeon_info {
boolean r600_virtual_address;
uint32_t r600_va_start;
uint32_t r600_ib_vm_max_size;
+ uint32_t r600_max_pipes;
};
enum radeon_feature_id {