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From 3ea424c34a4ac12913f4c5eaa863e5797b812b55 Mon Sep 17 00:00:00 2001
From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Mon, 18 Dec 2017 14:38:41 -0500
Subject: [PATCH 3126/4131] drm/amd/display: Implement CRTC CRC for DCE110
Implement the timing generator hooks for configure_crc and get_crc.
Also implement is_tg_enabled, as configure_crc uses it.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
---
.../display/dc/dce110/dce110_timing_generator.c | 122 +++++++++++++++++++++
1 file changed, 122 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
index 25ca721..078d18c 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_timing_generator.c
@@ -2077,6 +2077,125 @@ bool dce110_arm_vert_intr(struct timing_generator *tg, uint8_t width)
return true;
}
+static bool dce110_is_tg_enabled(struct timing_generator *tg)
+{
+ uint32_t addr = 0;
+ uint32_t value = 0;
+ uint32_t field = 0;
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+
+ addr = CRTC_REG(mmCRTC_CONTROL);
+ value = dm_read_reg(tg->ctx, addr);
+ field = get_reg_field_value(value, CRTC_CONTROL,
+ CRTC_CURRENT_MASTER_EN_STATE);
+ return field == 1;
+}
+
+static bool dce110_configure_crc(struct timing_generator *tg,
+ const struct crc_params *params)
+{
+ uint32_t cntl_addr = 0;
+ uint32_t addr = 0;
+ uint32_t value;
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+
+ /* Cannot configure crc on a CRTC that is disabled */
+ if (!dce110_is_tg_enabled(tg))
+ return false;
+
+ cntl_addr = CRTC_REG(mmCRTC_CRC_CNTL);
+
+ /* First, disable CRC before we configure it. */
+ dm_write_reg(tg->ctx, cntl_addr, 0);
+
+ if (!params->enable)
+ return true;
+
+ /* Program frame boundaries */
+ /* Window A x axis start and end. */
+ value = 0;
+ addr = CRTC_REG(mmCRTC_CRC0_WINDOWA_X_CONTROL);
+ set_reg_field_value(value, params->windowa_x_start,
+ CRTC_CRC0_WINDOWA_X_CONTROL,
+ CRTC_CRC0_WINDOWA_X_START);
+ set_reg_field_value(value, params->windowa_x_end,
+ CRTC_CRC0_WINDOWA_X_CONTROL,
+ CRTC_CRC0_WINDOWA_X_END);
+ dm_write_reg(tg->ctx, addr, value);
+
+ /* Window A y axis start and end. */
+ value = 0;
+ addr = CRTC_REG(mmCRTC_CRC0_WINDOWA_Y_CONTROL);
+ set_reg_field_value(value, params->windowa_y_start,
+ CRTC_CRC0_WINDOWA_Y_CONTROL,
+ CRTC_CRC0_WINDOWA_Y_START);
+ set_reg_field_value(value, params->windowa_y_end,
+ CRTC_CRC0_WINDOWA_Y_CONTROL,
+ CRTC_CRC0_WINDOWA_Y_END);
+ dm_write_reg(tg->ctx, addr, value);
+
+ /* Window B x axis start and end. */
+ value = 0;
+ addr = CRTC_REG(mmCRTC_CRC0_WINDOWB_X_CONTROL);
+ set_reg_field_value(value, params->windowb_x_start,
+ CRTC_CRC0_WINDOWB_X_CONTROL,
+ CRTC_CRC0_WINDOWB_X_START);
+ set_reg_field_value(value, params->windowb_x_end,
+ CRTC_CRC0_WINDOWB_X_CONTROL,
+ CRTC_CRC0_WINDOWB_X_END);
+ dm_write_reg(tg->ctx, addr, value);
+
+ /* Window B y axis start and end. */
+ value = 0;
+ addr = CRTC_REG(mmCRTC_CRC0_WINDOWB_Y_CONTROL);
+ set_reg_field_value(value, params->windowb_y_start,
+ CRTC_CRC0_WINDOWB_Y_CONTROL,
+ CRTC_CRC0_WINDOWB_Y_START);
+ set_reg_field_value(value, params->windowb_y_end,
+ CRTC_CRC0_WINDOWB_Y_CONTROL,
+ CRTC_CRC0_WINDOWB_Y_END);
+ dm_write_reg(tg->ctx, addr, value);
+
+ /* Set crc mode and selection, and enable. Only using CRC0*/
+ value = 0;
+ set_reg_field_value(value, params->continuous_mode ? 1 : 0,
+ CRTC_CRC_CNTL, CRTC_CRC_CONT_EN);
+ set_reg_field_value(value, params->selection,
+ CRTC_CRC_CNTL, CRTC_CRC0_SELECT);
+ set_reg_field_value(value, 1, CRTC_CRC_CNTL, CRTC_CRC_EN);
+ dm_write_reg(tg->ctx, cntl_addr, value);
+
+ return true;
+}
+
+static bool dce110_get_crc(struct timing_generator *tg,
+ uint32_t *r_cr, uint32_t *g_y, uint32_t *b_cb)
+{
+ uint32_t addr = 0;
+ uint32_t value = 0;
+ uint32_t field = 0;
+ struct dce110_timing_generator *tg110 = DCE110TG_FROM_TG(tg);
+
+ addr = CRTC_REG(mmCRTC_CRC_CNTL);
+ value = dm_read_reg(tg->ctx, addr);
+ field = get_reg_field_value(value, CRTC_CRC_CNTL, CRTC_CRC_EN);
+
+ /* Early return if CRC is not enabled for this CRTC */
+ if (!field)
+ return false;
+
+ addr = CRTC_REG(mmCRTC_CRC0_DATA_RG);
+ value = dm_read_reg(tg->ctx, addr);
+ *r_cr = get_reg_field_value(value, CRTC_CRC0_DATA_RG, CRC0_R_CR);
+ *g_y = get_reg_field_value(value, CRTC_CRC0_DATA_RG, CRC0_G_Y);
+
+ addr = CRTC_REG(mmCRTC_CRC0_DATA_B);
+ value = dm_read_reg(tg->ctx, addr);
+ *b_cb = get_reg_field_value(value, CRTC_CRC0_DATA_B, CRC0_B_CB);
+
+ return true;
+}
+
static const struct timing_generator_funcs dce110_tg_funcs = {
.validate_timing = dce110_tg_validate_timing,
.program_timing = dce110_tg_program_timing,
@@ -2112,6 +2231,9 @@ static const struct timing_generator_funcs dce110_tg_funcs = {
dce110_timing_generator_set_static_screen_control,
.set_test_pattern = dce110_timing_generator_set_test_pattern,
.arm_vert_intr = dce110_arm_vert_intr,
+ .is_tg_enabled = dce110_is_tg_enabled,
+ .configure_crc = dce110_configure_crc,
+ .get_crc = dce110_get_crc,
};
void dce110_timing_generator_construct(
--
2.7.4
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