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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c282
1 files changed, 282 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
new file mode 100644
index 000000000000..c8793e6cc3c5
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_rlc.c
@@ -0,0 +1,282 @@
+/*
+ * Copyright 2014 Advanced Micro Devices, Inc.
+ * Copyright 2008 Red Hat Inc.
+ * Copyright 2009 Jerome Glisse.
+ *
+ * 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 <linux/firmware.h>
+#include "amdgpu.h"
+#include "amdgpu_gfx.h"
+#include "amdgpu_rlc.h"
+
+/**
+ * amdgpu_gfx_rlc_enter_safe_mode - Set RLC into safe mode
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set RLC enter into safe mode if RLC is enabled and haven't in safe mode.
+ */
+void amdgpu_gfx_rlc_enter_safe_mode(struct amdgpu_device *adev)
+{
+ if (adev->gfx.rlc.in_safe_mode)
+ return;
+
+ /* if RLC is not enabled, do nothing */
+ if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
+ return;
+
+ if (adev->cg_flags &
+ (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG |
+ AMD_CG_SUPPORT_GFX_3D_CGCG)) {
+ adev->gfx.rlc.funcs->set_safe_mode(adev);
+ adev->gfx.rlc.in_safe_mode = true;
+ }
+}
+
+/**
+ * amdgpu_gfx_rlc_exit_safe_mode - Set RLC out of safe mode
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Set RLC exit safe mode if RLC is enabled and have entered into safe mode.
+ */
+void amdgpu_gfx_rlc_exit_safe_mode(struct amdgpu_device *adev)
+{
+ if (!(adev->gfx.rlc.in_safe_mode))
+ return;
+
+ /* if RLC is not enabled, do nothing */
+ if (!adev->gfx.rlc.funcs->is_rlc_enabled(adev))
+ return;
+
+ if (adev->cg_flags &
+ (AMD_CG_SUPPORT_GFX_CGCG | AMD_CG_SUPPORT_GFX_MGCG |
+ AMD_CG_SUPPORT_GFX_3D_CGCG)) {
+ adev->gfx.rlc.funcs->unset_safe_mode(adev);
+ adev->gfx.rlc.in_safe_mode = false;
+ }
+}
+
+/**
+ * amdgpu_gfx_rlc_init_sr - Init save restore block
+ *
+ * @adev: amdgpu_device pointer
+ * @dws: the size of save restore block
+ *
+ * Allocate and setup value to save restore block of rlc.
+ * Returns 0 on succeess or negative error code if allocate failed.
+ */
+int amdgpu_gfx_rlc_init_sr(struct amdgpu_device *adev, u32 dws)
+{
+ const u32 *src_ptr;
+ volatile u32 *dst_ptr;
+ u32 i;
+ int r;
+
+ /* allocate save restore block */
+ r = amdgpu_bo_create_reserved(adev, dws * 4, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_VRAM,
+ &adev->gfx.rlc.save_restore_obj,
+ &adev->gfx.rlc.save_restore_gpu_addr,
+ (void **)&adev->gfx.rlc.sr_ptr);
+ if (r) {
+ dev_warn(adev->dev, "(%d) create RLC sr bo failed\n", r);
+ amdgpu_gfx_rlc_fini(adev);
+ return r;
+ }
+
+ /* write the sr buffer */
+ src_ptr = adev->gfx.rlc.reg_list;
+ dst_ptr = adev->gfx.rlc.sr_ptr;
+ for (i = 0; i < adev->gfx.rlc.reg_list_size; i++)
+ dst_ptr[i] = cpu_to_le32(src_ptr[i]);
+ amdgpu_bo_kunmap(adev->gfx.rlc.save_restore_obj);
+ amdgpu_bo_unreserve(adev->gfx.rlc.save_restore_obj);
+
+ return 0;
+}
+
+/**
+ * amdgpu_gfx_rlc_init_csb - Init clear state block
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Allocate and setup value to clear state block of rlc.
+ * Returns 0 on succeess or negative error code if allocate failed.
+ */
+int amdgpu_gfx_rlc_init_csb(struct amdgpu_device *adev)
+{
+ volatile u32 *dst_ptr;
+ u32 dws;
+ int r;
+
+ /* allocate clear state block */
+ adev->gfx.rlc.clear_state_size = dws = adev->gfx.rlc.funcs->get_csb_size(adev);
+ r = amdgpu_bo_create_reserved(adev, dws * 4, PAGE_SIZE,
+ AMDGPU_GEM_DOMAIN_VRAM,
+ &adev->gfx.rlc.clear_state_obj,
+ &adev->gfx.rlc.clear_state_gpu_addr,
+ (void **)&adev->gfx.rlc.cs_ptr);
+ if (r) {
+ dev_err(adev->dev, "(%d) failed to create rlc csb bo\n", r);
+ amdgpu_gfx_rlc_fini(adev);
+ return r;
+ }
+
+ /* set up the cs buffer */
+ dst_ptr = adev->gfx.rlc.cs_ptr;
+ adev->gfx.rlc.funcs->get_csb_buffer(adev, dst_ptr);
+ amdgpu_bo_kunmap(adev->gfx.rlc.clear_state_obj);
+ amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj);
+ amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
+
+ return 0;
+}
+
+/**
+ * amdgpu_gfx_rlc_init_cpt - Init cp table
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Allocate and setup value to cp table of rlc.
+ * Returns 0 on succeess or negative error code if allocate failed.
+ */
+int amdgpu_gfx_rlc_init_cpt(struct amdgpu_device *adev)
+{
+ int r;
+
+ r = amdgpu_bo_create_reserved(adev, adev->gfx.rlc.cp_table_size,
+ PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM,
+ &adev->gfx.rlc.cp_table_obj,
+ &adev->gfx.rlc.cp_table_gpu_addr,
+ (void **)&adev->gfx.rlc.cp_table_ptr);
+ if (r) {
+ dev_err(adev->dev, "(%d) failed to create cp table bo\n", r);
+ amdgpu_gfx_rlc_fini(adev);
+ return r;
+ }
+
+ /* set up the cp table */
+ amdgpu_gfx_rlc_setup_cp_table(adev);
+ amdgpu_bo_kunmap(adev->gfx.rlc.cp_table_obj);
+ amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);
+
+ return 0;
+}
+
+/**
+ * amdgpu_gfx_rlc_setup_cp_table - setup cp the buffer of cp table
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Write cp firmware data into cp table.
+ */
+void amdgpu_gfx_rlc_setup_cp_table(struct amdgpu_device *adev)
+{
+ const __le32 *fw_data;
+ volatile u32 *dst_ptr;
+ int me, i, max_me;
+ u32 bo_offset = 0;
+ u32 table_offset, table_size;
+
+ max_me = adev->gfx.rlc.funcs->get_cp_table_num(adev);
+
+ /* write the cp table buffer */
+ dst_ptr = adev->gfx.rlc.cp_table_ptr;
+ for (me = 0; me < max_me; me++) {
+ if (me == 0) {
+ const struct gfx_firmware_header_v1_0 *hdr =
+ (const struct gfx_firmware_header_v1_0 *)adev->gfx.ce_fw->data;
+ fw_data = (const __le32 *)
+ (adev->gfx.ce_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ table_offset = le32_to_cpu(hdr->jt_offset);
+ table_size = le32_to_cpu(hdr->jt_size);
+ } else if (me == 1) {
+ const struct gfx_firmware_header_v1_0 *hdr =
+ (const struct gfx_firmware_header_v1_0 *)adev->gfx.pfp_fw->data;
+ fw_data = (const __le32 *)
+ (adev->gfx.pfp_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ table_offset = le32_to_cpu(hdr->jt_offset);
+ table_size = le32_to_cpu(hdr->jt_size);
+ } else if (me == 2) {
+ const struct gfx_firmware_header_v1_0 *hdr =
+ (const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
+ fw_data = (const __le32 *)
+ (adev->gfx.me_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ table_offset = le32_to_cpu(hdr->jt_offset);
+ table_size = le32_to_cpu(hdr->jt_size);
+ } else if (me == 3) {
+ const struct gfx_firmware_header_v1_0 *hdr =
+ (const struct gfx_firmware_header_v1_0 *)adev->gfx.mec_fw->data;
+ fw_data = (const __le32 *)
+ (adev->gfx.mec_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ table_offset = le32_to_cpu(hdr->jt_offset);
+ table_size = le32_to_cpu(hdr->jt_size);
+ } else if (me == 4) {
+ const struct gfx_firmware_header_v1_0 *hdr =
+ (const struct gfx_firmware_header_v1_0 *)adev->gfx.mec2_fw->data;
+ fw_data = (const __le32 *)
+ (adev->gfx.mec2_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ table_offset = le32_to_cpu(hdr->jt_offset);
+ table_size = le32_to_cpu(hdr->jt_size);
+ }
+
+ for (i = 0; i < table_size; i ++) {
+ dst_ptr[bo_offset + i] =
+ cpu_to_le32(le32_to_cpu(fw_data[table_offset + i]));
+ }
+
+ bo_offset += table_size;
+ }
+}
+
+/**
+ * amdgpu_gfx_rlc_fini - Free BO which used for RLC
+ *
+ * @adev: amdgpu_device pointer
+ *
+ * Free three BO which is used for rlc_save_restore_block, rlc_clear_state_block
+ * and rlc_jump_table_block.
+ */
+void amdgpu_gfx_rlc_fini(struct amdgpu_device *adev)
+{
+ /* save restore block */
+ if (adev->gfx.rlc.save_restore_obj) {
+ amdgpu_bo_free_kernel(&adev->gfx.rlc.save_restore_obj,
+ &adev->gfx.rlc.save_restore_gpu_addr,
+ (void **)&adev->gfx.rlc.sr_ptr);
+ }
+
+ /* clear state block */
+ amdgpu_bo_free_kernel(&adev->gfx.rlc.clear_state_obj,
+ &adev->gfx.rlc.clear_state_gpu_addr,
+ (void **)&adev->gfx.rlc.cs_ptr);
+
+ /* jump table block */
+ amdgpu_bo_free_kernel(&adev->gfx.rlc.cp_table_obj,
+ &adev->gfx.rlc.cp_table_gpu_addr,
+ (void **)&adev->gfx.rlc.cp_table_ptr);
+}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-18 00:52:54 +0300