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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/gpu/drm/amd/display/dc/dce/dce_ipp.c
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@@ -23,6 +23,8 @@
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  *
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  */
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+#include <linux/slab.h>
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+
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 #include "dce_ipp.h"
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 #include "reg_helper.h"
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 #include "dm_services.h"
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@@ -229,6 +231,22 @@
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 		  CURSOR2_DEGAMMA_MODE, degamma_type);
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 }
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+#if defined(CONFIG_DRM_AMD_DC_SI)
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+static void dce60_ipp_set_degamma(
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+	struct input_pixel_processor *ipp,
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+	enum ipp_degamma_mode mode)
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+{
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+	struct dce_ipp *ipp_dce = TO_DCE_IPP(ipp);
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+	uint32_t degamma_type = (mode == IPP_DEGAMMA_MODE_HW_sRGB) ? 1 : 0;
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+
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+	ASSERT(mode == IPP_DEGAMMA_MODE_BYPASS || mode == IPP_DEGAMMA_MODE_HW_sRGB);
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+	/* DCE6 does not have CURSOR2_DEGAMMA_MODE bit in DEGAMMA_CONTROL reg */
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+	REG_SET_2(DEGAMMA_CONTROL, 0,
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+		  GRPH_DEGAMMA_MODE, degamma_type,
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+		  CURSOR_DEGAMMA_MODE, degamma_type);
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+}
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+#endif
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+
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 static const struct ipp_funcs dce_ipp_funcs = {
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 	.ipp_cursor_set_attributes = dce_ipp_cursor_set_attributes,
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 	.ipp_cursor_set_position = dce_ipp_cursor_set_position,
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@@ -236,6 +254,17 @@
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 	.ipp_program_input_lut = dce_ipp_program_input_lut,
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 	.ipp_set_degamma = dce_ipp_set_degamma
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 };
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+
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+#if defined(CONFIG_DRM_AMD_DC_SI)
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+static const struct ipp_funcs dce60_ipp_funcs = {
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+	.ipp_cursor_set_attributes = dce_ipp_cursor_set_attributes,
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+	.ipp_cursor_set_position = dce_ipp_cursor_set_position,
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+	.ipp_program_prescale = dce_ipp_program_prescale,
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+	.ipp_program_input_lut = dce_ipp_program_input_lut,
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+	.ipp_set_degamma = dce60_ipp_set_degamma
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+};
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+#endif
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+
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 /*****************************************/
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 /* Constructor, Destructor               */
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@@ -258,6 +287,25 @@
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 	ipp_dce->ipp_mask = ipp_mask;
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 }
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+#if defined(CONFIG_DRM_AMD_DC_SI)
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+void dce60_ipp_construct(
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+	struct dce_ipp *ipp_dce,
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+	struct dc_context *ctx,
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+	int inst,
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+	const struct dce_ipp_registers *regs,
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+	const struct dce_ipp_shift *ipp_shift,
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+	const struct dce_ipp_mask *ipp_mask)
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+{
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+	ipp_dce->base.ctx = ctx;
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+	ipp_dce->base.inst = inst;
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+	ipp_dce->base.funcs = &dce60_ipp_funcs;
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+
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+	ipp_dce->regs = regs;
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+	ipp_dce->ipp_shift = ipp_shift;
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+	ipp_dce->ipp_mask = ipp_mask;
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+}
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+#endif
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+
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 void dce_ipp_destroy(struct input_pixel_processor **ipp)
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 {
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 	kfree(TO_DCE_IPP(*ipp));