Merge tag 'drm-for-v4.15-amd-dc' of git://people.freedesktop.org/~airlied/linux

Pull amdgpu DC display code for Vega from Dave Airlie:
 "This is the pull request for the AMD DC (display code) layer which is
  a requirement to program the display engines on the new Vega and Raven
  based GPUs. It also contains support for all amdgpu supported GPUs
  (CIK, VI, Polaris), which has to be enabled. It is also a kms atomic
  modesetting compatible driver (unlike the current in-tree display
  code).

  I've kept it separate from drm-next because it may have some things
  that cause you to reject it.

  Background story:

  AMD have an internal team creating a shared OS codebase for display at
  hw bring up time using information from their hardware teams. This
  process doesn't lead to the most Linux friendly/looking code but we
  have worked together on cleaning a lot of it up and dealing with
  sparse/smatch/checkpatch, and having their team internally adhere to
  Linux coding standards.

  This tree is a complete history rebased since they started opening it,
  we decided not to squash it down as the history may have some value.
  Some of the commits therefore might not reach kernel standards, and we
  are steadily training people in AMD to better write commit msgs.

  There is a major bunch of generated bandwidth calculation and
  verification code that comes from their hardware team. On Vega and
  before this is float calculations, on Raven (DCN10) this is double
  based. They do the required things to do FP in the kernel, and I could
  understand this might raise some issues. Rewriting the bandwidth would
  be a major undertaken in reverification, it's non-trivial to work out
  if a display can handle the complete set of mode information thrown at
  it.

  Future story:

  There is a TODO list with this, and it address most of the remaining
  things that would be nice to refine/remove. The DCN10 code is still
  under development internally and they push out a lot of patches quite
  regularly and are supporting this code base with their display team. I
  think we've reached the point where keeping it out of tree is going to
  motivate distributions to start carrying the code, so I'd prefer we
  get it in tree. I think this code is slightly better than STAGING
  quality but not massively so, I'd really like to see that float/double
  magic gone and fixed point used, but AMD don't seem to think the
  accuracy and revalidation of the code is worth the effort"

* tag 'drm-for-v4.15-amd-dc' of git://people.freedesktop.org/~airlied/linux: (1110 commits)
  drm/amd/display: fix MST link training fail division by 0
  drm/amd/display: Fix formatting for null pointer dereference fix
  drm/amd/display: Remove dangling planes on dc commit state
  drm/amd/display: add flip_immediate to commit update for stream
  drm/amd/display: Miss register MST encoder cbs
  drm/amd/display: Fix warnings on S3 resume
  drm/amd/display: use num_timing_generator instead of pipe_count
  drm/amd/display: use configurable FBC option in dm
  drm/amd/display: fix AZ clock not enabled before program AZ endpoint
  amdgpu/dm: Don't use DRM_ERROR in amdgpu_dm_atomic_check
  amd/display: Fix potential null dereference in dce_calcs.c
  amdgpu/dm: Remove unused forward declaration
  drm/amdgpu: Remove unused dc_stream from amdgpu_crtc
  amdgpu/dc: Fix double unlock in amdgpu_dm_commit_planes
  amdgpu/dc: Fix missing null checks in amdgpu_dm.c
  amdgpu/dc: Fix potential null dereferences in amdgpu_dm.c
  amdgpu/dc: fix more indentation warnings
  amdgpu/dc: handle allocation failures in dc_commit_planes_to_stream.
  amdgpu/dc: fix indentation warning from smatch.
  amdgpu/dc: fix non-ansi function decls.
  ...

1 files changed, 218 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.h b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.h
new file mode 100644
index 000000000000..b85f53c2f6f8
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.h
@@ -0,0 +1,218 @@
+/*
+ * Copyright 2012-16 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+
+#ifndef _DCE_DMCU_H_
+#define _DCE_DMCU_H_
+
+#include "dmcu.h"
+
+#define DMCU_COMMON_REG_LIST_DCE_BASE() \
+	SR(DMCU_CTRL), \
+	SR(DMCU_RAM_ACCESS_CTRL), \
+	SR(DMCU_IRAM_WR_CTRL), \
+	SR(DMCU_IRAM_WR_DATA), \
+	SR(MASTER_COMM_DATA_REG1), \
+	SR(MASTER_COMM_DATA_REG2), \
+	SR(MASTER_COMM_DATA_REG3), \
+	SR(MASTER_COMM_CMD_REG), \
+	SR(MASTER_COMM_CNTL_REG), \
+	SR(DMCU_IRAM_RD_CTRL), \
+	SR(DMCU_IRAM_RD_DATA), \
+	SR(DMCU_INTERRUPT_TO_UC_EN_MASK), \
+	SR(SMU_INTERRUPT_CONTROL)
+
+#define DMCU_DCE110_COMMON_REG_LIST() \
+	DMCU_COMMON_REG_LIST_DCE_BASE(), \
+	SR(DCI_MEM_PWR_STATUS)
+
+#define DMCU_DCN10_REG_LIST()\
+	DMCU_COMMON_REG_LIST_DCE_BASE(), \
+	SR(DMU_MEM_PWR_CNTL)
+
+#define DMCU_SF(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define DMCU_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh) \
+	DMCU_SF(DMCU_CTRL, \
+			DMCU_ENABLE, mask_sh), \
+	DMCU_SF(DMCU_RAM_ACCESS_CTRL, \
+			IRAM_HOST_ACCESS_EN, mask_sh), \
+	DMCU_SF(DMCU_RAM_ACCESS_CTRL, \
+			IRAM_WR_ADDR_AUTO_INC, mask_sh), \
+	DMCU_SF(MASTER_COMM_CMD_REG, \
+			MASTER_COMM_CMD_REG_BYTE0, mask_sh), \
+	DMCU_SF(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN1_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN2_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN3_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(DMCU_INTERRUPT_TO_UC_EN_MASK, \
+			STATIC_SCREEN4_INT_TO_UC_EN, mask_sh), \
+	DMCU_SF(SMU_INTERRUPT_CONTROL, DC_SMU_INT_ENABLE, mask_sh)
+
+#define DMCU_MASK_SH_LIST_DCE110(mask_sh) \
+	DMCU_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh), \
+	DMCU_SF(DCI_MEM_PWR_STATUS, \
+		DMCU_IRAM_MEM_PWR_STATE, mask_sh)
+
+#define DMCU_MASK_SH_LIST_DCN10(mask_sh) \
+	DMCU_COMMON_MASK_SH_LIST_DCE_COMMON_BASE(mask_sh), \
+	DMCU_SF(DMU_MEM_PWR_CNTL, \
+			DMCU_IRAM_MEM_PWR_STATE, mask_sh)
+
+#define DMCU_REG_FIELD_LIST(type) \
+	type DMCU_IRAM_MEM_PWR_STATE; \
+	type IRAM_HOST_ACCESS_EN; \
+	type IRAM_WR_ADDR_AUTO_INC; \
+	type DMCU_ENABLE; \
+	type MASTER_COMM_CMD_REG_BYTE0; \
+	type MASTER_COMM_INTERRUPT; \
+	type DPHY_RX_FAST_TRAINING_CAPABLE; \
+	type DPHY_LOAD_BS_COUNT; \
+	type STATIC_SCREEN1_INT_TO_UC_EN; \
+	type STATIC_SCREEN2_INT_TO_UC_EN; \
+	type STATIC_SCREEN3_INT_TO_UC_EN; \
+	type STATIC_SCREEN4_INT_TO_UC_EN; \
+	type DP_SEC_GSP0_LINE_NUM; \
+	type DP_SEC_GSP0_PRIORITY; \
+	type DC_SMU_INT_ENABLE
+
+struct dce_dmcu_shift {
+	DMCU_REG_FIELD_LIST(uint8_t);
+};
+
+struct dce_dmcu_mask {
+	DMCU_REG_FIELD_LIST(uint32_t);
+};
+
+struct dce_dmcu_registers {
+	uint32_t DMCU_CTRL;
+	uint32_t DMCU_RAM_ACCESS_CTRL;
+	uint32_t DCI_MEM_PWR_STATUS;
+	uint32_t DMU_MEM_PWR_CNTL;
+	uint32_t DMCU_IRAM_WR_CTRL;
+	uint32_t DMCU_IRAM_WR_DATA;
+
+	uint32_t MASTER_COMM_DATA_REG1;
+	uint32_t MASTER_COMM_DATA_REG2;
+	uint32_t MASTER_COMM_DATA_REG3;
+	uint32_t MASTER_COMM_CMD_REG;
+	uint32_t MASTER_COMM_CNTL_REG;
+	uint32_t DMCU_IRAM_RD_CTRL;
+	uint32_t DMCU_IRAM_RD_DATA;
+	uint32_t DMCU_INTERRUPT_TO_UC_EN_MASK;
+	uint32_t SMU_INTERRUPT_CONTROL;
+};
+
+struct dce_dmcu {
+	struct dmcu base;
+	const struct dce_dmcu_registers *regs;
+	const struct dce_dmcu_shift *dmcu_shift;
+	const struct dce_dmcu_mask *dmcu_mask;
+};
+
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG1   Bit position    Data
+ *                           7:0	            hyst_frames[7:0]
+ *                           14:8	        hyst_lines[6:0]
+ *                           15	            RFB_UPDATE_AUTO_EN
+ *                           18:16	        phy_num[2:0]
+ *                           21:19	        dcp_sel[2:0]
+ *                           22	            phy_type
+ *                           23	            frame_cap_ind
+ *                           26:24	        aux_chan[2:0]
+ *                           30:27	        aux_repeat[3:0]
+ *                           31:31	        reserved[31:31]
+ ******************************************************************/
+union dce_dmcu_psr_config_data_reg1 {
+	struct {
+		unsigned int timehyst_frames:8;    /*[7:0]*/
+		unsigned int hyst_lines:7;         /*[14:8]*/
+		unsigned int rfb_update_auto_en:1; /*[15:15]*/
+		unsigned int dp_port_num:3;        /*[18:16]*/
+		unsigned int dcp_sel:3;            /*[21:19]*/
+		unsigned int phy_type:1;           /*[22:22]*/
+		unsigned int frame_cap_ind:1;      /*[23:23]*/
+		unsigned int aux_chan:3;           /*[26:24]*/
+		unsigned int aux_repeat:4;         /*[30:27]*/
+		unsigned int reserved:1;           /*[31:31]*/
+	} bits;
+	unsigned int u32All;
+};
+
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG2
+ *******************************************************************/
+union dce_dmcu_psr_config_data_reg2 {
+	struct {
+		unsigned int dig_fe:3;                  /*[2:0]*/
+		unsigned int dig_be:3;                  /*[5:3]*/
+		unsigned int skip_wait_for_pll_lock:1;  /*[6:6]*/
+		unsigned int reserved:9;                /*[15:7]*/
+		unsigned int frame_delay:8;             /*[23:16]*/
+		unsigned int smu_phy_id:4;              /*[27:24]*/
+		unsigned int num_of_controllers:4;      /*[31:28]*/
+	} bits;
+	unsigned int u32All;
+};
+
+/*******************************************************************
+ *   MASTER_COMM_DATA_REG3
+ *******************************************************************/
+union dce_dmcu_psr_config_data_reg3 {
+	struct {
+		unsigned int psr_level:16;      /*[15:0]*/
+		unsigned int link_rate:4;       /*[19:16]*/
+		unsigned int reserved:12;       /*[31:20]*/
+	} bits;
+	unsigned int u32All;
+};
+
+union dce_dmcu_psr_config_data_wait_loop_reg1 {
+	struct {
+		unsigned int wait_loop:16; /* [15:0] */
+		unsigned int reserved:16; /* [31:16] */
+	} bits;
+	unsigned int u32;
+};
+
+struct dmcu *dce_dmcu_create(
+	struct dc_context *ctx,
+	const struct dce_dmcu_registers *regs,
+	const struct dce_dmcu_shift *dmcu_shift,
+	const struct dce_dmcu_mask *dmcu_mask);
+
+struct dmcu *dcn10_dmcu_create(
+	struct dc_context *ctx,
+	const struct dce_dmcu_registers *regs,
+	const struct dce_dmcu_shift *dmcu_shift,
+	const struct dce_dmcu_mask *dmcu_mask);
+
+void dce_dmcu_destroy(struct dmcu **dmcu);
+
+#endif /* _DCE_ABM_H_ */