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Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0697-drm-amd-display-Initial-prototype-of-FBC-implementat.patch')
-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.14.71/0697-drm-amd-display-Initial-prototype-of-FBC-implementat.patch98
1 files changed, 98 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0697-drm-amd-display-Initial-prototype-of-FBC-implementat.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0697-drm-amd-display-Initial-prototype-of-FBC-implementat.patch
new file mode 100644
index 00000000..857e2be5
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0697-drm-amd-display-Initial-prototype-of-FBC-implementat.patch
@@ -0,0 +1,98 @@
+From d1ccf3d96b7dbda982ffd4ee99a33bcaff74b94c Mon Sep 17 00:00:00 2001
+From: Roman Li <Roman.Li@amd.com>
+Date: Thu, 27 Jul 2017 19:53:55 -0400
+Subject: [PATCH 0697/4131] drm/amd/display: Initial prototype of FBC
+ implementation
+
+- Protected by ENABLE_FBC compile flag
+- DC part will follow
+
+Signed-off-by: Roman Li <Roman.Li@amd.com>
+Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
+Acked-by: Harry Wentland <Harry.Wentland@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 29 +++++++++++++++++++++++
+ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 12 ++++++++++
+ 2 files changed, 41 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+index 9825af7..ad8dc2c 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -297,6 +297,30 @@ static void hotplug_notify_work_func(struct work_struct *work)
+ drm_kms_helper_hotplug_event(dev);
+ }
+
++#ifdef ENABLE_FBC
++#include "dal_asic_id.h"
++/* Allocate memory for FBC compressed data */
++/* TODO: Dynamic allocation */
++#define AMDGPU_FBC_SIZE (3840 * 2160 * 4)
++
++void amdgpu_dm_initialize_fbc(struct amdgpu_device *adev)
++{
++ int r;
++ struct dm_comressor_info *compressor = &adev->dm.compressor;
++
++ if (!compressor->bo_ptr) {
++ r = amdgpu_bo_create_kernel(adev, AMDGPU_FBC_SIZE, PAGE_SIZE,
++ AMDGPU_GEM_DOMAIN_VRAM, &compressor->bo_ptr,
++ &compressor->gpu_addr, &compressor->cpu_addr);
++
++ if (r)
++ DRM_ERROR("DM: Failed to initialize fbc\n");
++ }
++
++}
++#endif
++
++
+ /* Init display KMS
+ *
+ * Returns 0 on success
+@@ -347,6 +371,11 @@ int amdgpu_dm_init(struct amdgpu_device *adev)
+
+ init_data.dce_environment = DCE_ENV_PRODUCTION_DRV;
+
++#ifdef ENABLE_FBC
++ if (adev->family == FAMILY_CZ)
++ amdgpu_dm_initialize_fbc(adev);
++ init_data.fbc_gpu_addr = adev->dm.compressor.gpu_addr;
++#endif
+ /* Display Core create. */
+ adev->dm.dc = dc_create(&init_data);
+
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+index 16b2e08..ce0223a 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+@@ -72,6 +72,15 @@ struct irq_list_head {
+ struct work_struct work;
+ };
+
++#ifdef ENABLE_FBC
++struct dm_comressor_info {
++ void *cpu_addr;
++ struct amdgpu_bo *bo_ptr;
++ uint64_t gpu_addr;
++};
++#endif
++
++
+ struct amdgpu_display_manager {
+ struct dal *dal;
+ struct dc *dc;
+@@ -133,6 +142,9 @@ struct amdgpu_display_manager {
+ * Caches device atomic state for suspend/resume
+ */
+ struct drm_atomic_state *cached_state;
++#ifdef ENABLE_FBC
++ struct dm_comressor_info compressor;
++#endif
+ };
+
+ /* basic init/fini API */
+--
+2.7.4
+