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authorArthur Hanson Rasmusson <arthur@vgpu.io>2026-09-30 04:04:22 -0400
committerArthur Hanson Rasmusson <arthur@vgpu.io>2026-09-30 04:04:22 -0400
commite4c3f8554d70dcf22567621528a4601d7444666b (patch)
tree24fd8eeb2af00d8b6434b06e28f2fb2b1b50fffd /kernel/gsp_rm_tu104.h
parent13a75bcb0e0be7fa8a4e90b9bda91a791e9d919f (diff)
downloadopen-iov-e4c3f8554d70dcf22567621528a4601d7444666b.tar.gz
open-iov-e4c3f8554d70dcf22567621528a4601d7444666b.zip
gsp-rm: fill GR info indices 7/9/0x17/0x22 (libcuda clock-table path; e94 TPC count)
Diffstat (limited to 'kernel/gsp_rm_tu104.h')
-rw-r--r--kernel/gsp_rm_tu104.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/gsp_rm_tu104.h b/kernel/gsp_rm_tu104.h
index ac90e38..7cd5a4b 100644
--- a/kernel/gsp_rm_tu104.h
+++ b/kernel/gsp_rm_tu104.h
@@ -958,15 +958,29 @@ struct tu104_gr_static_info {
};
/* infoList indices we populate (ctrl0080gr.h) */
+#define TU104_GR_INFO_IDX_SHADER_PIPE_COUNT 0x07
+#define TU104_GR_INFO_IDX_SHADER_PIPE_SUB_COUNT 0x09
#define TU104_GR_INFO_IDX_LITTER_NUM_GPCS 0x14
#define TU104_GR_INFO_IDX_LITTER_NUM_TPC_PER_GPC 0x17
#define TU104_GR_INFO_IDX_GPU_CORE_COUNT 0x1d
#define TU104_GR_INFO_IDX_LITTER_NUM_SM_PER_TPC 0x20
+#define TU104_GR_INFO_IDX_RT_CORE_COUNT 0x22
#define TU104_GR_INFO_IDX_FAMILY_MAX_TPC_PER_GPC 0x2a
#define TU104_GR_INFO_IDX_MAX_SUBCONTEXT_COUNT 0x2c
#define TU104_GR_INFO_IDX_MAX_LEGACY_SUBCONTEXT_COUNT 0x2d
#define TU104_GR_INFO_IDX_MAX_PER_ENGINE_SUBCONTEXT_COUNT 0x2e
+/* Values libcuda fetches through NV2080_CTRL_CMD_GR_GET_INFO (0x20801201)
+ * by info index (host-oracle observed on TU104): index 9 feeds the
+ * ucode-image clock table (devstate+0xe94 == TPC count 24); index 0x17
+ * feeds the same table (devstate+0xb0 TPC / +0xb4 SM count); 7 and 0x22
+ * feed the SM/RT caps. Zero here makes FUN_003e35f0 reject the clock
+ * table with NV_ERR_INVALID_ARGUMENT (cuCtxCreate rc=999). */
+#define TU104_GR_INFO_SHADER_PIPE_COUNT 6
+#define TU104_GR_INFO_SHADER_PIPE_SUB_COUNT 24
+#define TU104_GR_INFO_LITTER_NUM_TPC_PER_GPC 6
+#define TU104_GR_INFO_RT_CORE_COUNT 48
+
/* TU104 max subcontexts (NV_PGRAPH_PRI_FE_CHIP_DEF_INFO_MAX_VEID_COUNT_INIT) */
#define TU104_MAX_SUBCONTEXT_COUNT 64