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, 392 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h b/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h
new file mode 100644
index 000000000000..77eb72874e90
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/inc/reg_helper.h
@@ -0,0 +1,392 @@
+/*
+ * Copyright 2016 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 DRIVERS_GPU_DRM_AMD_DC_DEV_DC_INC_REG_HELPER_H_
+#define DRIVERS_GPU_DRM_AMD_DC_DEV_DC_INC_REG_HELPER_H_
+
+#include "dm_services.h"
+
+/* macro for register read/write
+ * user of macro need to define
+ *
+ * CTX ==> macro to ptr to dc_context
+ *    eg. aud110->base.ctx
+ *
+ * REG ==> macro to location of register offset
+ *    eg. aud110->regs->reg
+ */
+#define REG_READ(reg_name) \
+		dm_read_reg(CTX, REG(reg_name))
+
+#define REG_WRITE(reg_name, value) \
+		dm_write_reg(CTX, REG(reg_name), value)
+
+#ifdef REG_SET
+#undef REG_SET
+#endif
+
+#ifdef REG_GET
+#undef REG_GET
+#endif
+
+/* macro to set register fields. */
+#define REG_SET_N(reg_name, n, initial_val, ...)	\
+		generic_reg_update_ex(CTX, \
+				REG(reg_name), \
+				initial_val, \
+				n, __VA_ARGS__)
+
+#define FN(reg_name, field) \
+	FD(reg_name##__##field)
+
+#define REG_SET(reg_name, initial_val, field, val)	\
+		REG_SET_N(reg_name, 1, initial_val, \
+				FN(reg_name, field), val)
+
+#define REG_SET_2(reg, init_value, f1, v1, f2, v2)	\
+		REG_SET_N(reg, 2, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2)
+
+#define REG_SET_3(reg, init_value, f1, v1, f2, v2, f3, v3)	\
+		REG_SET_N(reg, 3, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3)
+
+#define REG_SET_4(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4)	\
+		REG_SET_N(reg, 4, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3,\
+				FN(reg, f4), v4)
+
+#define REG_SET_5(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4,	\
+		f5, v5)	\
+		REG_SET_N(reg, 5, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3,\
+				FN(reg, f4), v4,\
+				FN(reg, f5), v5)
+
+#define REG_SET_6(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4,	\
+		f5, v5, f6, v6)	\
+		REG_SET_N(reg, 6, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3,\
+				FN(reg, f4), v4,\
+				FN(reg, f5), v5,\
+				FN(reg, f6), v6)
+
+#define REG_SET_7(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4,	\
+		f5, v5, f6, v6, f7, v7)	\
+		REG_SET_N(reg, 7, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3,\
+				FN(reg, f4), v4,\
+				FN(reg, f5), v5,\
+				FN(reg, f6), v6,\
+				FN(reg, f7), v7)
+
+#define REG_SET_8(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4,	\
+		f5, v5, f6, v6, f7, v7, f8, v8)	\
+		REG_SET_N(reg, 8, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2,\
+				FN(reg, f3), v3,\
+				FN(reg, f4), v4,\
+				FN(reg, f5), v5,\
+				FN(reg, f6), v6,\
+				FN(reg, f7), v7,\
+				FN(reg, f8), v8)
+
+#define REG_SET_9(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4, f5, \
+		v5, f6, v6, f7, v7, f8, v8, f9, v9)	\
+		REG_SET_N(reg, 9, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9)
+
+#define REG_SET_10(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4, f5, \
+		v5, f6, v6, f7, v7, f8, v8, f9, v9, f10, v10)	\
+		REG_SET_N(reg, 10, init_value, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9, \
+				FN(reg, f10), v10)
+
+/* macro to get register fields
+ * read given register and fill in field value in output parameter */
+#define REG_GET(reg_name, field, val)	\
+		generic_reg_get(CTX, REG(reg_name), \
+				FN(reg_name, field), val)
+
+#define REG_GET_2(reg_name, f1, v1, f2, v2)	\
+		generic_reg_get2(CTX, REG(reg_name), \
+				FN(reg_name, f1), v1, \
+				FN(reg_name, f2), v2)
+
+#define REG_GET_3(reg_name, f1, v1, f2, v2, f3, v3)	\
+		generic_reg_get3(CTX, REG(reg_name), \
+				FN(reg_name, f1), v1, \
+				FN(reg_name, f2), v2, \
+				FN(reg_name, f3), v3)
+
+#define REG_GET_4(reg_name, f1, v1, f2, v2, f3, v3, f4, v4)	\
+		generic_reg_get4(CTX, REG(reg_name), \
+				FN(reg_name, f1), v1, \
+				FN(reg_name, f2), v2, \
+				FN(reg_name, f3), v3, \
+				FN(reg_name, f4), v4)
+
+#define REG_GET_5(reg_name, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5)	\
+		generic_reg_get5(CTX, REG(reg_name), \
+				FN(reg_name, f1), v1, \
+				FN(reg_name, f2), v2, \
+				FN(reg_name, f3), v3, \
+				FN(reg_name, f4), v4, \
+				FN(reg_name, f5), v5)
+
+/* macro to poll and wait for a register field to read back given value */
+
+#define REG_WAIT(reg_name, field, val, delay_between_poll_us, max_try)	\
+		generic_reg_wait(CTX, \
+				REG(reg_name), FN(reg_name, field), val,\
+				delay_between_poll_us, max_try, __func__, __LINE__)
+
+/* macro to update (read, modify, write) register fields
+ */
+#define REG_UPDATE_N(reg_name, n, ...)	\
+		generic_reg_update_ex(CTX, \
+				REG(reg_name), \
+				REG_READ(reg_name), \
+				n, __VA_ARGS__)
+
+#define REG_UPDATE(reg_name, field, val)	\
+		REG_UPDATE_N(reg_name, 1, \
+				FN(reg_name, field), val)
+
+#define REG_UPDATE_2(reg, f1, v1, f2, v2)	\
+		REG_UPDATE_N(reg, 2,\
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2)
+
+#define REG_UPDATE_3(reg, f1, v1, f2, v2, f3, v3)	\
+		REG_UPDATE_N(reg, 3, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3)
+
+#define REG_UPDATE_4(reg, f1, v1, f2, v2, f3, v3, f4, v4)	\
+		REG_UPDATE_N(reg, 4, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4)
+
+#define REG_UPDATE_5(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5)	\
+		REG_UPDATE_N(reg, 5, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5)
+
+#define REG_UPDATE_6(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6)	\
+		REG_UPDATE_N(reg, 6, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6)
+
+#define REG_UPDATE_7(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7)	\
+		REG_UPDATE_N(reg, 7, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7)
+
+#define REG_UPDATE_8(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8)	\
+		REG_UPDATE_N(reg, 8, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8)
+
+#define REG_UPDATE_9(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8, f9, v9)	\
+		REG_UPDATE_N(reg, 9, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9)
+
+#define REG_UPDATE_10(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8, f9, v9, f10, v10)\
+		REG_UPDATE_N(reg, 10, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9, \
+				FN(reg, f10), v10)
+
+#define REG_UPDATE_14(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8, f9, v9, f10,\
+		v10, f11, v11, f12, v12, f13, v13, f14, v14)\
+		REG_UPDATE_N(reg, 14, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9, \
+				FN(reg, f10), v10, \
+				FN(reg, f11), v11, \
+				FN(reg, f12), v12, \
+				FN(reg, f13), v13, \
+				FN(reg, f14), v14)
+
+#define REG_UPDATE_19(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8, f9, v9, f10,\
+		v10, f11, v11, f12, v12, f13, v13, f14, v14, f15, v15, f16, v16, f17, v17, f18, v18, f19, v19)\
+		REG_UPDATE_N(reg, 19, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9, \
+				FN(reg, f10), v10, \
+				FN(reg, f11), v11, \
+				FN(reg, f12), v12, \
+				FN(reg, f13), v13, \
+				FN(reg, f14), v14, \
+				FN(reg, f15), v15, \
+				FN(reg, f16), v16, \
+				FN(reg, f17), v17, \
+				FN(reg, f18), v18, \
+				FN(reg, f19), v19)
+
+#define REG_UPDATE_20(reg, f1, v1, f2, v2, f3, v3, f4, v4, f5, v5, f6, v6, f7, v7, f8, v8, f9, v9, f10,\
+		v10, f11, v11, f12, v12, f13, v13, f14, v14, f15, v15, f16, v16, f17, v17, f18, v18, f19, v19, f20, v20)\
+		REG_UPDATE_N(reg, 20, \
+				FN(reg, f1), v1,\
+				FN(reg, f2), v2, \
+				FN(reg, f3), v3, \
+				FN(reg, f4), v4, \
+				FN(reg, f5), v5, \
+				FN(reg, f6), v6, \
+				FN(reg, f7), v7, \
+				FN(reg, f8), v8, \
+				FN(reg, f9), v9, \
+				FN(reg, f10), v10, \
+				FN(reg, f11), v11, \
+				FN(reg, f12), v12, \
+				FN(reg, f13), v13, \
+				FN(reg, f14), v14, \
+				FN(reg, f15), v15, \
+				FN(reg, f16), v16, \
+				FN(reg, f17), v17, \
+				FN(reg, f18), v18, \
+				FN(reg, f19), v19, \
+				FN(reg, f20), v20)
+/* macro to update a register field to specified values in given sequences.
+ * useful when toggling bits
+ */
+#define REG_UPDATE_SEQ(reg, field, value1, value2) \
+{	uint32_t val = REG_UPDATE(reg, field, value1); \
+	REG_SET(reg, val, field, value2); }
+
+/* macro to update fields in register 1 field at a time in given order */
+#define REG_UPDATE_1BY1_2(reg, f1, v1, f2, v2) \
+{	uint32_t val = REG_UPDATE(reg, f1, v1); \
+	REG_SET(reg, val, f2, v2); }
+
+#define REG_UPDATE_1BY1_3(reg, f1, v1, f2, v2, f3, v3) \
+{	uint32_t val = REG_UPDATE(reg, f1, v1); \
+	val = REG_SET(reg, val, f2, v2); \
+	REG_SET(reg, val, f3, v3); }
+
+uint32_t generic_reg_get(const struct dc_context *ctx, uint32_t addr,
+		uint8_t shift, uint32_t mask, uint32_t *field_value);
+
+uint32_t generic_reg_get2(const struct dc_context *ctx, uint32_t addr,
+		uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
+		uint8_t shift2, uint32_t mask2, uint32_t *field_value2);
+
+uint32_t generic_reg_get3(const struct dc_context *ctx, uint32_t addr,
+		uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
+		uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
+		uint8_t shift3, uint32_t mask3, uint32_t *field_value3);
+
+uint32_t generic_reg_get4(const struct dc_context *ctx, uint32_t addr,
+		uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
+		uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
+		uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
+		uint8_t shift4, uint32_t mask4, uint32_t *field_value4);
+
+uint32_t generic_reg_get5(const struct dc_context *ctx, uint32_t addr,
+		uint8_t shift1, uint32_t mask1, uint32_t *field_value1,
+		uint8_t shift2, uint32_t mask2, uint32_t *field_value2,
+		uint8_t shift3, uint32_t mask3, uint32_t *field_value3,
+		uint8_t shift4, uint32_t mask4, uint32_t *field_value4,
+		uint8_t shift5, uint32_t mask5, uint32_t *field_value5);
+
+#endif /* DRIVERS_GPU_DRM_AMD_DC_DEV_DC_INC_REG_HELPER_H_ */