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-rw-r--r--meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/5171-drm-amdgpu-Refine-function-name-and-function-args.patch126
1 files changed, 126 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/5171-drm-amdgpu-Refine-function-name-and-function-args.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/5171-drm-amdgpu-Refine-function-name-and-function-args.patch
new file mode 100644
index 00000000..551c9b6d
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/5171-drm-amdgpu-Refine-function-name-and-function-args.patch
@@ -0,0 +1,126 @@
+From 9c3a1fbdfbf9e2dc7be4a0654d8a3cdb04ffe659 Mon Sep 17 00:00:00 2001
+From: Rex Zhu <Rex.Zhu@amd.com>
+Date: Tue, 14 Aug 2018 13:32:30 +0800
+Subject: [PATCH 5171/5725] drm/amdgpu: Refine function name and function args
+
+There are no any logical changes here.
+
+1. change function names:
+ amdgpu_device_ip_late_set_pg/cg_state to
+ amdgpu_device_set_pg/cg_state.
+2. add a function argument cg/pg_state, so
+ we can enable/disable cg/pg through those functions
+
+Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+Signed-off-by: Raveendra Talabattula <raveendra.talabattula@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 39 +++++++++++++++---------------
+ 1 file changed, 19 insertions(+), 20 deletions(-)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+index b798801..3b915c7 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+@@ -1740,24 +1740,26 @@ static bool amdgpu_device_check_vram_lost(struct amdgpu_device *adev)
+ }
+
+ /**
+- * amdgpu_device_ip_late_set_cg_state - late init for clockgating
++ * amdgpu_device_set_cg_state - set clockgating for amdgpu device
+ *
+ * @adev: amdgpu_device pointer
+ *
+- * Late initialization pass enabling clockgating for hardware IPs.
+ * The list of all the hardware IPs that make up the asic is walked and the
+- * set_clockgating_state callbacks are run. This stage is run late
+- * in the init process.
++ * set_clockgating_state callbacks are run.
++ * Late initialization pass enabling clockgating for hardware IPs.
++ * Fini or suspend, pass disabling clockgating for hardware IPs.
+ * Returns 0 on success, negative error code on failure.
+ */
+-static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
++static int amdgpu_device_set_cg_state(struct amdgpu_device *adev,
++ enum amd_clockgating_state state)
+ {
+- int i = 0, r;
++ int i, j, r;
+
+ if (amdgpu_emu_mode == 1)
+ return 0;
+
+- for (i = 0; i < adev->num_ip_blocks; i++) {
++ for (j = 0; j < adev->num_ip_blocks; j++) {
++ i = state == AMD_CG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
+ if (!adev->ip_blocks[i].status.valid)
+ continue;
+ /* skip CG for VCE/UVD, it's handled specially */
+@@ -1767,7 +1769,7 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
+ adev->ip_blocks[i].version->funcs->set_clockgating_state) {
+ /* enable clockgating to save power */
+ r = adev->ip_blocks[i].version->funcs->set_clockgating_state((void *)adev,
+- AMD_CG_STATE_GATE);
++ state);
+ if (r) {
+ DRM_ERROR("set_clockgating_state(gate) of IP block <%s> failed %d\n",
+ adev->ip_blocks[i].version->funcs->name, r);
+@@ -1779,14 +1781,15 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev)
+ return 0;
+ }
+
+-static int amdgpu_device_ip_late_set_pg_state(struct amdgpu_device *adev)
++static int amdgpu_device_set_pg_state(struct amdgpu_device *adev, enum amd_powergating_state state)
+ {
+- int i = 0, r;
++ int i, j, r;
+
+ if (amdgpu_emu_mode == 1)
+ return 0;
+
+- for (i = 0; i < adev->num_ip_blocks; i++) {
++ for (j = 0; j < adev->num_ip_blocks; j++) {
++ i = state == AMD_PG_STATE_GATE ? j : adev->num_ip_blocks - j - 1;
+ if (!adev->ip_blocks[i].status.valid)
+ continue;
+ /* skip CG for VCE/UVD, it's handled specially */
+@@ -1796,7 +1799,7 @@ static int amdgpu_device_ip_late_set_pg_state(struct amdgpu_device *adev)
+ adev->ip_blocks[i].version->funcs->set_powergating_state) {
+ /* enable powergating to save power */
+ r = adev->ip_blocks[i].version->funcs->set_powergating_state((void *)adev,
+- AMD_PG_STATE_GATE);
++ state);
+ if (r) {
+ DRM_ERROR("set_powergating_state(gate) of IP block <%s> failed %d\n",
+ adev->ip_blocks[i].version->funcs->name, r);
+@@ -1837,8 +1840,8 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
+ }
+ }
+
+- amdgpu_device_ip_late_set_cg_state(adev);
+- amdgpu_device_ip_late_set_pg_state(adev);
++ amdgpu_device_set_cg_state(adev, AMD_CG_STATE_GATE);
++ amdgpu_device_set_pg_state(adev, AMD_PG_STATE_GATE);
+
+ queue_delayed_work(system_wq, &adev->late_init_work,
+ msecs_to_jiffies(AMDGPU_RESUME_MS));
+@@ -1955,13 +1958,9 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev)
+ }
+
+ /**
+- * amdgpu_device_ip_late_init_func_handler - work handler for clockgating
+- *
+- * @work: work_struct
++ * amdgpu_device_ip_late_init_func_handler - work handler for ib test
+ *
+- * Work handler for amdgpu_device_ip_late_set_cg_state. We put the
+- * clockgating setup into a worker thread to speed up driver init and
+- * resume from suspend.
++ * @work: work_struct.
+ */
+ static void amdgpu_device_ip_late_init_func_handler(struct work_struct *work)
+ {
+--
+2.7.4
+