gpu: nvgpu: MSCG support

- update gp106 pg engine init/list/features HALs
  to support MS engine
- Added defines & interface for lpwr tables read  from vbios.
- lpwr module which reads idx/gr/ms table from vbios to
  map rppg/mscg support with respective p-state
- lpwr module public functions to control lpwr
  features enable/disable mscg/rppg & mclk-change
  request whenever change in mclk-change parameters
- lpwr public functions to know rppg/mscg support for
  requested pstate,
- added mutex t prevent PG transition while arbiter
  executes pstate transition
- nvgpu_clk_arb_get_current_pstate() of clk arbiter to
  get current pstate

JIRA DNVGPU-71

Change-Id: Ifcd640cc19ef630be1e2a9ba07ec84023d8202a0
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-on: http://git-master/r/1247553
(cherry picked from commit 8a441dea2410e1b5196ef24e56a7768b6980e46b)
Reviewed-on: http://git-master/r/1270989
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 64 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/bios.h b/drivers/gpu/nvgpu/include/bios.h
index f3939d14..097e90ec 100644
--- a/drivers/gpu/nvgpu/include/bios.h
+++ b/drivers/gpu/nvgpu/include/bios.h
@@ -925,4 +925,68 @@ struct vbios_fct_1x_entry {
 #define NV_VBIOS_FCT_1X_ENTRY_PARAM8_FREQ_HYST_NEG_MASK GENMASK(31, 16)
 #define NV_VBIOS_FCT_1X_ENTRY_PARAM8_FREQ_HYST_NEG_SHIFT 16
 
+/* LPWR Index Table */
+struct nvgpu_bios_lpwr_idx_table_1x_header {
+        u8 version;
+        u8 header_size;
+        u8 entry_size;
+        u8 entry_count;
+        u16 base_sampling_period;
+} __packed;
+
+struct nvgpu_bios_lpwr_idx_table_1x_entry {
+        u8 pcie_idx;
+        u8 gr_idx;
+        u8 ms_idx;
+        u8 di_idx;
+        u8 gc6_idx;
+} __packed;
+
+/* LPWR MS Table*/
+struct nvgpu_bios_lpwr_ms_table_1x_header {
+        u8 version;
+        u8 header_size;
+        u8 entry_size;
+        u8 entry_count;
+        u8 default_entry_idx;
+        u16 idle_threshold_us;
+} __packed;
+
+struct nvgpu_bios_lpwr_ms_table_1x_entry {
+        u32 feautre_mask;
+        u16 dynamic_current_logic;
+        u16 dynamic_current_sram;
+} __packed;
+
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_MASK    GENMASK(0, 0)
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_SHIFT    0
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_SWASR_MASK    GENMASK(2, 2)
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_SWASR_SHIFT    2
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_CLOCK_GATING_MASK    \
+                        GENMASK(3, 3)
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_CLOCK_GATING_SHIFT    3
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_RPPG_MASK    GENMASK(5, 5)
+#define NV_VBIOS_LPWR_MS_FEATURE_MASK_MS_RPPG_SHIFT    5
+
+/* LPWR GR Table */
+struct nvgpu_bios_lpwr_gr_table_1x_header {
+        u8 version;
+        u8 header_size;
+        u8 entry_size;
+        u8 entry_count;
+        u8 default_entry_idx;
+        u16 idle_threshold_us;
+        u8 adaptive_gr_multiplier;
+} __packed;
+
+struct nvgpu_bios_lpwr_gr_table_1x_entry {
+        u32 feautre_mask;
+} __packed;
+
+#define NV_VBIOS_LPWR_GR_FEATURE_MASK_GR_MASK GENMASK(0, 0)
+#define NV_VBIOS_LPWR_GR_FEATURE_MASK_GR_SHIFT 0
+
+#define NV_VBIOS_LPWR_GR_FEATURE_MASK_GR_RPPG_MASK GENMASK(4, 4)
+#define NV_VBIOS_LPWR_GR_FEATURE_MASK_GR_RPPG_SHIFT 4
+
 #endif