drm/amd/display: Remove nv12 work around

[Why]
dal side nv12 wa has a lot of side effects.
KMD side wa is used, so this should be remove.

[How]
Removed wa from dal side.

Signed-off-by: Yongqiang Sun <[e-mail]>
Reviewed-by: Tony Cheng <[e-mail]>
Acked-by: Rodrigo Siqueira <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/core/dc_vm_helper.c

···
 		 */
 		memcpy(&dc->vm_pa_config, pa_config, sizeof(struct dc_phy_addr_space_config));
 		dc->vm_pa_config.valid = true;
-
-		if (pa_config->is_hvm_enabled == 0)
-			dc->debug.nv12_iflip_vm_wa = false;
 	}
 
 	return num_vmids;

drivers/gpu/drm/amd/display/dc/dc.h

···
 	bool cm_in_bypass;
 	int force_clock_mode;/*every mode change.*/
 
-	bool nv12_iflip_vm_wa;
 	bool disable_dram_clock_change_vactive_support;
 	bool validate_dml_output;
 	bool enable_dmcub_surface_flip;

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c

···
 		hubp->power_gated = false;
 	}
 
-	if (hubp->funcs->apply_PLAT_54186_wa && viewport_changed)
-		hubp->funcs->apply_PLAT_54186_wa(hubp, &plane_state->address);
-
 	if (pipe_ctx->update_flags.bits.enable || plane_state->update_flags.bits.addr_update)
 		hws->funcs.update_plane_addr(dc, pipe_ctx);
 

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c

···
 		  SEC_VIEWPORT_Y_START_C, viewport_c->y);
 }
 
-static void hubp21_apply_PLAT_54186_wa(
-		struct hubp *hubp,
-		const struct dc_plane_address *address)
-{
-	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
-	struct dc_debug_options *debug = &hubp->ctx->dc->debug;
-	unsigned int chroma_bpe = 2;
-	unsigned int luma_addr_high_part = 0;
-	unsigned int row_height = 0;
-	unsigned int chroma_pitch = 0;
-	unsigned int viewport_c_height = 0;
-	unsigned int viewport_c_width = 0;
-	unsigned int patched_viewport_height = 0;
-	unsigned int patched_viewport_width = 0;
-	unsigned int rotation_angle = 0;
-	unsigned int pix_format = 0;
-	unsigned int h_mirror_en = 0;
-	unsigned int tile_blk_size = 64 * 1024; /* 64KB for 64KB SW, 4KB for 4KB SW */
-
-
-	if (!debug->nv12_iflip_vm_wa)
-		return;
-
-	REG_GET(DCHUBP_REQ_SIZE_CONFIG_C,
-		PTE_ROW_HEIGHT_LINEAR_C, &row_height);
-
-	REG_GET_2(DCSURF_PRI_VIEWPORT_DIMENSION_C,
-			PRI_VIEWPORT_WIDTH_C, &viewport_c_width,
-			PRI_VIEWPORT_HEIGHT_C, &viewport_c_height);
-
-	REG_GET(DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH_C,
-			PRIMARY_SURFACE_ADDRESS_HIGH_C, &luma_addr_high_part);
-
-	REG_GET(DCSURF_SURFACE_PITCH_C,
-			PITCH_C, &chroma_pitch);
-
-	chroma_pitch += 1;
-
-	REG_GET_3(DCSURF_SURFACE_CONFIG,
-			SURFACE_PIXEL_FORMAT, &pix_format,
-			ROTATION_ANGLE, &rotation_angle,
-			H_MIRROR_EN, &h_mirror_en);
-
-	/* reset persistent cached data */
-	hubp21->PLAT_54186_wa_chroma_addr_offset = 0;
-	/* apply wa only for NV12 surface with scatter gather enabled with viewport > 512 along
-	 * the vertical direction*/
-	if (address->type != PLN_ADDR_TYPE_VIDEO_PROGRESSIVE ||
-			address->video_progressive.luma_addr.high_part == 0xf4)
-		return;
-
-	if ((rotation_angle == ROTATION_ANGLE_0 || rotation_angle == ROTATION_ANGLE_180)
-			&& viewport_c_height <= 512)
-		return;
-
-	if ((rotation_angle == ROTATION_ANGLE_90 || rotation_angle == ROTATION_ANGLE_270)
-				&& viewport_c_width <= 512)
-		return;
-
-	switch (rotation_angle) {
-	case ROTATION_ANGLE_0: /* 0 degree rotation */
-		row_height = 128;
-		patched_viewport_height = (viewport_c_height / row_height + 1) * row_height + 1;
-		patched_viewport_width = viewport_c_width;
-		hubp21->PLAT_54186_wa_chroma_addr_offset = 0;
-		break;
-	case ROTATION_ANGLE_180: /* 180 degree rotation */
-		row_height = 128;
-		patched_viewport_height = viewport_c_height + row_height;
-		patched_viewport_width = viewport_c_width;
-		hubp21->PLAT_54186_wa_chroma_addr_offset = 0 - chroma_pitch * row_height * chroma_bpe;
-		break;
-	case ROTATION_ANGLE_90: /* 90 degree rotation */
-		row_height = 256;
-		if (h_mirror_en) {
-			patched_viewport_height = viewport_c_height;
-			patched_viewport_width = viewport_c_width + row_height;
-			hubp21->PLAT_54186_wa_chroma_addr_offset = 0;
-		} else {
-			patched_viewport_height = viewport_c_height;
-			patched_viewport_width = viewport_c_width + row_height;
-			hubp21->PLAT_54186_wa_chroma_addr_offset = 0 - tile_blk_size;
-		}
-		break;
-	case ROTATION_ANGLE_270: /* 270 degree rotation */
-		row_height = 256;
-		if (h_mirror_en) {
-			patched_viewport_height = viewport_c_height;
-			patched_viewport_width = viewport_c_width + row_height;
-			hubp21->PLAT_54186_wa_chroma_addr_offset = 0 - tile_blk_size;
-		} else {
-			patched_viewport_height = viewport_c_height;
-			patched_viewport_width = viewport_c_width + row_height;
-			hubp21->PLAT_54186_wa_chroma_addr_offset = 0;
-		}
-		break;
-	default:
-		ASSERT(0);
-		break;
-	}
-
-	/* catch cases where viewport keep growing */
-	ASSERT(patched_viewport_height && patched_viewport_height < 5000);
-	ASSERT(patched_viewport_width && patched_viewport_width < 5000);
-
-	REG_UPDATE_2(DCSURF_PRI_VIEWPORT_DIMENSION_C,
-			PRI_VIEWPORT_WIDTH_C, patched_viewport_width,
-			PRI_VIEWPORT_HEIGHT_C, patched_viewport_height);
-}
-
 void hubp21_set_vm_system_aperture_settings(struct hubp *hubp,
 		struct vm_system_aperture_param *apt)
 {
···
 		const struct dc_plane_address *address,
 		bool flip_immediate)
 {
-	struct dc_debug_options *debug = &hubp->ctx->dc->debug;
-	struct dcn21_hubp *hubp21 = TO_DCN21_HUBP(hubp);
 	struct surface_flip_registers flip_regs = { 0 };
 
 	flip_regs.vmid = address->vmid;
···
 		flip_regs.DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH =
 				address->video_progressive.luma_addr.high_part;
 
-		if (debug->nv12_iflip_vm_wa) {
-			flip_regs.DCSURF_PRIMARY_SURFACE_ADDRESS_C =
-					address->video_progressive.chroma_addr.low_part + hubp21->PLAT_54186_wa_chroma_addr_offset;
-		} else
-			flip_regs.DCSURF_PRIMARY_SURFACE_ADDRESS_C =
-					address->video_progressive.chroma_addr.low_part;
+		flip_regs.DCSURF_PRIMARY_SURFACE_ADDRESS_C =
+				address->video_progressive.chroma_addr.low_part;
 
 		flip_regs.DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH_C =
 				address->video_progressive.chroma_addr.high_part;
···
 	.set_blank = hubp1_set_blank,
 	.dcc_control = hubp1_dcc_control,
 	.mem_program_viewport = hubp21_set_viewport,
-	.apply_PLAT_54186_wa = hubp21_apply_PLAT_54186_wa,
 	.set_cursor_attributes	= hubp2_cursor_set_attributes,
 	.set_cursor_position	= hubp1_cursor_set_position,
 	.hubp_clk_cntl = hubp1_clk_cntl,

drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c

···
 		.scl_reset_length10 = true,
 		.sanity_checks = true,
 		.disable_48mhz_pwrdwn = false,
-		.nv12_iflip_vm_wa = true,
 		.usbc_combo_phy_reset_wa = true
 };
 

drivers/gpu/drm/amd/display/dc/inc/hw/hubp.h

···
 			const struct rect *viewport,
 			const struct rect *viewport_c);
 
-	void (*apply_PLAT_54186_wa)(struct hubp *hubp,
-			const struct dc_plane_address *address);
-
 	bool (*hubp_program_surface_flip_and_addr)(
 		struct hubp *hubp,
 		const struct dc_plane_address *address,