drm/amd/display: Add DCN3.1 DCHHUB

Adds DCN3.1 DCHHUB programming and modifies DCN20/DCN30 shared
hardware sequencer helpers to use these hooks.

HW Blocks:

 +--------++------+       +----------+
 |DCHUBBUB|| HUBP |  <--  | MMHUBBUB |
 +--------++------+       +----------+
        |                      ^
        v                      |
    +--------+             +--------+
    |  DPP   | <---------> |  DWB   |
    +--------+             +--------+
        |                      ^
        v                      |
    +--------+                 |
    |  MPC   |                 |
    +--------+                 |
        |                      |
        v                      |
    +-------+                  |
    |  OPP  |                  |
    +-------+                  |
        |                      |
        v                      |
    +--------+                /
    |  OPTC  |  --------------
    +--------+
        |
        v
    +--------+       +--------+
    |  DIO   |       |  DCCG  |
    +--------+       +--------+

No changes to MMHUBBUB or DWB programming, added to diagram for clarity.

Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubp.c
new file mode 100644
index 000000000000..53b792b997b7
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_hubp.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2012-20 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
+ *
+ */
+
+#include "dm_services.h"
+#include "dce_calcs.h"
+#include "reg_helper.h"
+#include "basics/conversion.h"
+#include "dcn31_hubp.h"
+
+#define REG(reg)\
+	hubp2->hubp_regs->reg
+
+#define CTX \
+	hubp2->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name) \
+	hubp2->hubp_shift->field_name, hubp2->hubp_mask->field_name
+
+void hubp31_set_unbounded_requesting(struct hubp *hubp, bool enable)
+{
+	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
+
+	REG_UPDATE(DCHUBP_CNTL, HUBP_UNBOUNDED_REQ_MODE, enable);
+	REG_UPDATE(CURSOR_CONTROL, CURSOR_REQ_MODE, enable);
+}
+
+void hubp31_soft_reset(struct hubp *hubp, bool reset)
+{
+	struct dcn20_hubp *hubp2 = TO_DCN20_HUBP(hubp);
+
+	REG_UPDATE(DCHUBP_CNTL, HUBP_SOFT_RESET, reset);
+}
+
+static struct hubp_funcs dcn31_hubp_funcs = {
+	.hubp_enable_tripleBuffer = hubp2_enable_triplebuffer,
+	.hubp_is_triplebuffer_enabled = hubp2_is_triplebuffer_enabled,
+	.hubp_program_surface_flip_and_addr = hubp3_program_surface_flip_and_addr,
+	.hubp_program_surface_config = hubp3_program_surface_config,
+	.hubp_is_flip_pending = hubp2_is_flip_pending,
+	.hubp_setup = hubp3_setup,
+	.hubp_setup_interdependent = hubp2_setup_interdependent,
+	.hubp_set_vm_system_aperture_settings = hubp3_set_vm_system_aperture_settings,
+	.set_blank = hubp2_set_blank,
+	.dcc_control = hubp3_dcc_control,
+	.mem_program_viewport = min_set_viewport,
+	.set_cursor_attributes	= hubp2_cursor_set_attributes,
+	.set_cursor_position	= hubp2_cursor_set_position,
+	.hubp_clk_cntl = hubp2_clk_cntl,
+	.hubp_vtg_sel = hubp2_vtg_sel,
+	.dmdata_set_attributes = hubp3_dmdata_set_attributes,
+	.dmdata_load = hubp2_dmdata_load,
+	.dmdata_status_done = hubp2_dmdata_status_done,
+	.hubp_read_state = hubp3_read_state,
+	.hubp_clear_underflow = hubp2_clear_underflow,
+	.hubp_set_flip_control_surface_gsl = hubp2_set_flip_control_surface_gsl,
+	.hubp_init = hubp3_init,
+	.set_unbounded_requesting = hubp31_set_unbounded_requesting,
+	.hubp_soft_reset = hubp31_soft_reset,
+	.hubp_in_blank = hubp1_in_blank,
+};
+
+bool hubp31_construct(
+	struct dcn20_hubp *hubp2,
+	struct dc_context *ctx,
+	uint32_t inst,
+	const struct dcn_hubp2_registers *hubp_regs,
+	const struct dcn_hubp2_shift *hubp_shift,
+	const struct dcn_hubp2_mask *hubp_mask)
+{
+	hubp2->base.funcs = &dcn31_hubp_funcs;
+	hubp2->base.ctx = ctx;
+	hubp2->hubp_regs = hubp_regs;
+	hubp2->hubp_shift = hubp_shift;
+	hubp2->hubp_mask = hubp_mask;
+	hubp2->base.inst = inst;
+	hubp2->base.opp_id = OPP_ID_INVALID;
+	hubp2->base.mpcc_id = 0xf;
+
+	return true;
+}