drm/amdgpu: Initialize dce_virtual_ip_funcs

For virtual display feature, first need to initialize dce_virtual_ip_funcs,
which will be used when set ip blocks.

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

4 files changed, 343 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index c7fcdcedaadb..21dd7c00da15 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -58,7 +58,8 @@ amdgpu-y += \
 # add DCE block
 amdgpu-y += \
         dce_v10_0.o \
-        dce_v11_0.o
+        dce_v11_0.o \
+        dce_virtual.o
 
 # add GFX block
 amdgpu-y += \
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
index 76f96028313d..abeb6aaf89a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c
@@ -335,7 +335,7 @@ int amdgpu_crtc_set_config(struct drm_mode_set *set)
         return ret;
 }
 
-static const char *encoder_names[38] = {
+static const char *encoder_names[41] = {
         "NONE",
         "INTERNAL_LVDS",
         "INTERNAL_TMDS1",
@@ -374,6 +374,9 @@ static const char *encoder_names[38] = {
         "TRAVIS",
         "INTERNAL_VCE",
         "INTERNAL_UNIPHY3",
+        "HDMI_ANX9805",
+        "INTERNAL_AMCLK",
+        "VIRTUAL",
 };
 
 static const char *hpd_names[6] = {
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.c b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
new file mode 100644
index 000000000000..953ee1a501a5
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.c
@@ -0,0 +1,308 @@
+/*
+ * Copyright 2014 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.
+ *
+ */
+#include "drmP.h"
+#include "amdgpu.h"
+#include "amdgpu_pm.h"
+#include "amdgpu_i2c.h"
+#include "atom.h"
+#include "amdgpu_atombios.h"
+#include "atombios_crtc.h"
+#include "atombios_encoders.h"
+#include "amdgpu_pll.h"
+#include "amdgpu_connectors.h"
+
+static void dce_virtual_set_display_funcs(struct amdgpu_device *adev);
+static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev);
+
+static const struct drm_crtc_funcs dce_virtual_crtc_funcs = {
+        .cursor_set2 = NULL,
+        .cursor_move = NULL,
+        .gamma_set = NULL,
+        .set_config = NULL,
+        .destroy = NULL,
+        .page_flip = NULL,
+};
+
+static const struct drm_crtc_helper_funcs dce_virtual_crtc_helper_funcs = {
+        .dpms = NULL,
+        .mode_fixup = NULL,
+        .mode_set = NULL,
+        .mode_set_base = NULL,
+        .mode_set_base_atomic = NULL,
+        .prepare = NULL,
+        .commit = NULL,
+        .load_lut = NULL,
+        .disable = NULL,
+};
+
+static int dce_virtual_crtc_init(struct amdgpu_device *adev, int index)
+{
+        struct amdgpu_crtc *amdgpu_crtc;
+        int i;
+
+        amdgpu_crtc = kzalloc(sizeof(struct amdgpu_crtc) +
+                              (AMDGPUFB_CONN_LIMIT * sizeof(struct drm_connector *)), GFP_KERNEL);
+        if (amdgpu_crtc == NULL)
+                return -ENOMEM;
+
+        drm_crtc_init(adev->ddev, &amdgpu_crtc->base, &dce_virtual_crtc_funcs);
+
+        drm_mode_crtc_set_gamma_size(&amdgpu_crtc->base, 256);
+        amdgpu_crtc->crtc_id = index;
+        adev->mode_info.crtcs[index] = amdgpu_crtc;
+
+        for (i = 0; i < 256; i++) {
+                amdgpu_crtc->lut_r[i] = i << 2;
+                amdgpu_crtc->lut_g[i] = i << 2;
+                amdgpu_crtc->lut_b[i] = i << 2;
+        }
+
+        amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
+        amdgpu_crtc->encoder = NULL;
+        amdgpu_crtc->connector = NULL;
+        drm_crtc_helper_add(&amdgpu_crtc->base, &dce_virtual_crtc_helper_funcs);
+
+        return 0;
+}
+
+static int dce_virtual_early_init(void *handle)
+{
+        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+        dce_virtual_set_display_funcs(adev);
+        dce_virtual_set_irq_funcs(adev);
+
+        adev->mode_info.num_crtc = 1;
+        adev->mode_info.num_hpd = 1;
+        adev->mode_info.num_dig = 1;
+        return 0;
+}
+
+static bool dce_virtual_get_connector_info(struct amdgpu_device *adev)
+{
+        struct amdgpu_i2c_bus_rec ddc_bus;
+        struct amdgpu_router router;
+        struct amdgpu_hpd hpd;
+
+        /* look up gpio for ddc, hpd */
+        ddc_bus.valid = false;
+        hpd.hpd = AMDGPU_HPD_NONE;
+        /* needed for aux chan transactions */
+        ddc_bus.hpd = hpd.hpd;
+
+        memset(&router, 0, sizeof(router));
+        router.ddc_valid = false;
+        router.cd_valid = false;
+        amdgpu_display_add_connector(adev,
+                                      0,
+                                      ATOM_DEVICE_CRT1_SUPPORT,
+                                      DRM_MODE_CONNECTOR_VIRTUAL, &ddc_bus,
+                                      CONNECTOR_OBJECT_ID_VIRTUAL,
+                                      &hpd,
+                                      &router);
+
+        amdgpu_display_add_encoder(adev, ENCODER_VIRTUAL_ENUM_VIRTUAL,
+                                                        ATOM_DEVICE_CRT1_SUPPORT,
+                                                        0);
+
+        amdgpu_link_encoder_connector(adev->ddev);
+
+        return true;
+}
+
+static int dce_virtual_sw_init(void *handle)
+{
+        int r, i;
+        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+        r = amdgpu_irq_add_id(adev, 229, &adev->crtc_irq);
+        if (r)
+                return r;
+
+        adev->ddev->mode_config.funcs = &amdgpu_mode_funcs;
+
+        adev->ddev->mode_config.max_width = 16384;
+        adev->ddev->mode_config.max_height = 16384;
+
+        adev->ddev->mode_config.preferred_depth = 24;
+        adev->ddev->mode_config.prefer_shadow = 1;
+
+        adev->ddev->mode_config.fb_base = adev->mc.aper_base;
+
+        r = amdgpu_modeset_create_props(adev);
+        if (r)
+                return r;
+
+        adev->ddev->mode_config.max_width = 16384;
+        adev->ddev->mode_config.max_height = 16384;
+
+        /* allocate crtcs */
+        for (i = 0; i < adev->mode_info.num_crtc; i++) {
+                r = dce_virtual_crtc_init(adev, i);
+                if (r)
+                        return r;
+        }
+
+        dce_virtual_get_connector_info(adev);
+        amdgpu_print_display_setup(adev->ddev);
+
+        drm_kms_helper_poll_init(adev->ddev);
+
+        adev->mode_info.mode_config_initialized = true;
+        return 0;
+}
+
+static int dce_virtual_sw_fini(void *handle)
+{
+        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+        kfree(adev->mode_info.bios_hardcoded_edid);
+
+        drm_kms_helper_poll_fini(adev->ddev);
+
+        drm_mode_config_cleanup(adev->ddev);
+        adev->mode_info.mode_config_initialized = false;
+        return 0;
+}
+
+static int dce_virtual_hw_init(void *handle)
+{
+        return 0;
+}
+
+static int dce_virtual_hw_fini(void *handle)
+{
+        return 0;
+}
+
+static int dce_virtual_suspend(void *handle)
+{
+        return dce_virtual_hw_fini(handle);
+}
+
+static int dce_virtual_resume(void *handle)
+{
+        int ret;
+
+        ret = dce_virtual_hw_init(handle);
+
+        return ret;
+}
+
+static bool dce_virtual_is_idle(void *handle)
+{
+        return true;
+}
+
+static int dce_virtual_wait_for_idle(void *handle)
+{
+        return 0;
+}
+
+static int dce_virtual_soft_reset(void *handle)
+{
+        return 0;
+}
+
+static int dce_virtual_set_clockgating_state(void *handle,
+                                          enum amd_clockgating_state state)
+{
+        return 0;
+}
+
+static int dce_virtual_set_powergating_state(void *handle,
+                                          enum amd_powergating_state state)
+{
+        return 0;
+}
+
+const struct amd_ip_funcs dce_virtual_ip_funcs = {
+        .name = "dce_virtual",
+        .early_init = dce_virtual_early_init,
+        .late_init = NULL,
+        .sw_init = dce_virtual_sw_init,
+        .sw_fini = dce_virtual_sw_fini,
+        .hw_init = dce_virtual_hw_init,
+        .hw_fini = dce_virtual_hw_fini,
+        .suspend = dce_virtual_suspend,
+        .resume = dce_virtual_resume,
+        .is_idle = dce_virtual_is_idle,
+        .wait_for_idle = dce_virtual_wait_for_idle,
+        .soft_reset = dce_virtual_soft_reset,
+        .set_clockgating_state = dce_virtual_set_clockgating_state,
+        .set_powergating_state = dce_virtual_set_powergating_state,
+};
+
+static const struct amdgpu_display_funcs dce_virtual_display_funcs = {
+        .set_vga_render_state = NULL,
+        .bandwidth_update = NULL,
+        .vblank_get_counter = NULL,
+        .vblank_wait = NULL,
+        .is_display_hung = NULL,
+        .backlight_set_level = NULL,
+        .backlight_get_level = NULL,
+        .hpd_sense = NULL,
+        .hpd_set_polarity = NULL,
+        .hpd_get_gpio_reg = NULL,
+        .page_flip = NULL,
+        .page_flip_get_scanoutpos = NULL,
+        .add_encoder = NULL,
+        .add_connector = &amdgpu_connector_add,
+        .stop_mc_access = NULL,
+        .resume_mc_access = NULL,
+};
+
+static void dce_virtual_set_display_funcs(struct amdgpu_device *adev)
+{
+        if (adev->mode_info.funcs == NULL)
+                adev->mode_info.funcs = &dce_virtual_display_funcs;
+}
+
+static const struct amdgpu_irq_src_funcs dce_virtual_crtc_irq_funcs = {
+        .set = NULL,
+        .process = NULL,
+};
+
+static const struct amdgpu_irq_src_funcs dce_virtual_pageflip_irq_funcs = {
+        .set = NULL,
+        .process = NULL,
+};
+
+static const struct amdgpu_irq_src_funcs dce_virtual_hpd_irq_funcs = {
+        .set = NULL,
+        .process = NULL,
+};
+
+static void dce_virtual_set_irq_funcs(struct amdgpu_device *adev)
+{
+        adev->crtc_irq.num_types = AMDGPU_CRTC_IRQ_LAST;
+        adev->crtc_irq.funcs = &dce_virtual_crtc_irq_funcs;
+
+        adev->pageflip_irq.num_types = AMDGPU_PAGEFLIP_IRQ_LAST;
+        adev->pageflip_irq.funcs = &dce_virtual_pageflip_irq_funcs;
+
+        adev->hpd_irq.num_types = AMDGPU_HPD_LAST;
+        adev->hpd_irq.funcs = &dce_virtual_hpd_irq_funcs;
+}
+
+
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_virtual.h b/drivers/gpu/drm/amd/amdgpu/dce_virtual.h
new file mode 100644
index 000000000000..d205d7f6f6ab
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/dce_virtual.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2014 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.
+ *
+ */
+
+#ifndef __DCE_VIRTUAL_H__
+#define __DCE_VIRTUAL_H__
+
+extern const struct amd_ip_funcs dce_virtual_ip_funcs;
+#endif
+