--- /dev/null
+/*
+ * Copyright 2022 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 <linux/firmware.h>
+
+#include "amdgpu.h"
+#include "amdgpu_gfx.h"
+#include "soc15.h"
+#include "soc15_common.h"
+
+#include "gc/gc_9_4_3_offset.h"
+#include "gc/gc_9_4_3_sh_mask.h"
+
+#include "gfx_v9_4_3.h"
+
+#define RLCG_UCODE_LOADING_START_ADDRESS 0x00002000L
+
+static bool gfx_v9_4_3_is_rlc_enabled(struct amdgpu_device *adev)
+{
+ uint32_t rlc_setting;
+
+ /* if RLC is not enabled, do nothing */
+ rlc_setting = RREG32_SOC15(GC, 0, regRLC_CNTL);
+ if (!(rlc_setting & RLC_CNTL__RLC_ENABLE_F32_MASK))
+ return false;
+
+ return true;
+}
+
+static void gfx_v9_4_3_set_safe_mode(struct amdgpu_device *adev)
+{
+ uint32_t data;
+ unsigned i;
+
+ data = RLC_SAFE_MODE__CMD_MASK;
+ data |= (1 << RLC_SAFE_MODE__MESSAGE__SHIFT);
+ WREG32_SOC15(GC, 0, regRLC_SAFE_MODE, data);
+
+ /* wait for RLC_SAFE_MODE */
+ for (i = 0; i < adev->usec_timeout; i++) {
+ if (!REG_GET_FIELD(RREG32_SOC15(GC, 0, regRLC_SAFE_MODE), RLC_SAFE_MODE, CMD))
+ break;
+ udelay(1);
+ }
+}
+
+static void gfx_v9_4_3_unset_safe_mode(struct amdgpu_device *adev)
+{
+ uint32_t data;
+
+ data = RLC_SAFE_MODE__CMD_MASK;
+ WREG32_SOC15(GC, 0, regRLC_SAFE_MODE, data);
+}
+
+static int gfx_v9_4_3_rlc_init(struct amdgpu_device *adev)
+{
+ /* init spm vmid with 0xf */
+ if (adev->gfx.rlc.funcs->update_spm_vmid)
+ adev->gfx.rlc.funcs->update_spm_vmid(adev, 0xf);
+
+ return 0;
+}
+
+static void gfx_v9_4_3_select_se_sh(struct amdgpu_device *adev,
+ u32 se_num,
+ u32 sh_num,
+ u32 instance)
+{
+ u32 data;
+
+ if (instance == 0xffffffff)
+ data = REG_SET_FIELD(0, GRBM_GFX_INDEX,
+ INSTANCE_BROADCAST_WRITES, 1);
+ else
+ data = REG_SET_FIELD(0, GRBM_GFX_INDEX, INSTANCE_INDEX,
+ instance);
+
+ if (se_num == 0xffffffff)
+ data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_BROADCAST_WRITES,
+ 1);
+ else
+ data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SE_INDEX, se_num);
+
+ if (sh_num == 0xffffffff)
+ data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_BROADCAST_WRITES,
+ 1);
+ else
+ data = REG_SET_FIELD(data, GRBM_GFX_INDEX, SH_INDEX, sh_num);
+
+ WREG32_SOC15_RLC_SHADOW_EX(reg, GC, 0, regGRBM_GFX_INDEX, data);
+}
+
+static void gfx_v9_4_3_wait_for_rlc_serdes(struct amdgpu_device *adev)
+{
+ u32 i, j, k;
+ u32 mask;
+
+ mutex_lock(&adev->grbm_idx_mutex);
+ for (i = 0; i < adev->gfx.config.max_shader_engines; i++) {
+ for (j = 0; j < adev->gfx.config.max_sh_per_se; j++) {
+ gfx_v9_4_3_select_se_sh(adev, i, j, 0xffffffff);
+ for (k = 0; k < adev->usec_timeout; k++) {
+ if (RREG32_SOC15(GC, 0, regRLC_SERDES_CU_MASTER_BUSY) == 0)
+ break;
+ udelay(1);
+ }
+ if (k == adev->usec_timeout) {
+ gfx_v9_4_3_select_se_sh(adev, 0xffffffff,
+ 0xffffffff, 0xffffffff);
+ mutex_unlock(&adev->grbm_idx_mutex);
+ DRM_INFO("Timeout wait for RLC serdes %u,%u\n",
+ i, j);
+ return;
+ }
+ }
+ }
+ gfx_v9_4_3_select_se_sh(adev, 0xffffffff, 0xffffffff, 0xffffffff);
+ mutex_unlock(&adev->grbm_idx_mutex);
+
+ mask = RLC_SERDES_NONCU_MASTER_BUSY__SE_MASTER_BUSY_MASK |
+ RLC_SERDES_NONCU_MASTER_BUSY__GC_MASTER_BUSY_MASK |
+ RLC_SERDES_NONCU_MASTER_BUSY__TC0_MASTER_BUSY_MASK |
+ RLC_SERDES_NONCU_MASTER_BUSY__TC1_MASTER_BUSY_MASK;
+ for (k = 0; k < adev->usec_timeout; k++) {
+ if ((RREG32_SOC15(GC, 0, regRLC_SERDES_NONCU_MASTER_BUSY) & mask) == 0)
+ break;
+ udelay(1);
+ }
+}
+
+static void gfx_v9_4_3_enable_gui_idle_interrupt(struct amdgpu_device *adev,
+ bool enable)
+{
+ u32 tmp;
+
+ /* These interrupts should be enabled to drive DS clock */
+
+ tmp = RREG32_SOC15(GC, 0, regCP_INT_CNTL_RING0);
+
+ tmp = REG_SET_FIELD(tmp, CP_INT_CNTL_RING0, CNTX_BUSY_INT_ENABLE, enable ? 1 : 0);
+ tmp = REG_SET_FIELD(tmp, CP_INT_CNTL_RING0, CNTX_EMPTY_INT_ENABLE, enable ? 1 : 0);
+ tmp = REG_SET_FIELD(tmp, CP_INT_CNTL_RING0, CMP_BUSY_INT_ENABLE, enable ? 1 : 0);
+ if (adev->gfx.num_gfx_rings)
+ tmp = REG_SET_FIELD(tmp, CP_INT_CNTL_RING0, GFX_IDLE_INT_ENABLE, enable ? 1 : 0);
+
+ WREG32_SOC15(GC, 0, regCP_INT_CNTL_RING0, tmp);
+}
+
+static void gfx_v9_4_3_rlc_stop(struct amdgpu_device *adev)
+{
+ WREG32_FIELD15_PREREG(GC, 0, RLC_CNTL, RLC_ENABLE_F32, 0);
+ gfx_v9_4_3_enable_gui_idle_interrupt(adev, false);
+ gfx_v9_4_3_wait_for_rlc_serdes(adev);
+}
+
+static void gfx_v9_4_3_rlc_reset(struct amdgpu_device *adev)
+{
+ WREG32_FIELD15_PREREG(GC, 0, GRBM_SOFT_RESET, SOFT_RESET_RLC, 1);
+ udelay(50);
+ WREG32_FIELD15_PREREG(GC, 0, GRBM_SOFT_RESET, SOFT_RESET_RLC, 0);
+ udelay(50);
+}
+
+static void gfx_v9_4_3_rlc_start(struct amdgpu_device *adev)
+{
+#ifdef AMDGPU_RLC_DEBUG_RETRY
+ u32 rlc_ucode_ver;
+#endif
+
+ WREG32_FIELD15_PREREG(GC, 0, RLC_CNTL, RLC_ENABLE_F32, 1);
+ udelay(50);
+
+ /* carrizo do enable cp interrupt after cp inited */
+ if (!(adev->flags & AMD_IS_APU)) {
+ gfx_v9_4_3_enable_gui_idle_interrupt(adev, true);
+ udelay(50);
+ }
+
+#ifdef AMDGPU_RLC_DEBUG_RETRY
+ /* RLC_GPM_GENERAL_6 : RLC Ucode version */
+ rlc_ucode_ver = RREG32_SOC15(GC, 0, regRLC_GPM_GENERAL_6);
+ if (rlc_ucode_ver == 0x108) {
+ dev_info(adev->dev,
+ "Using rlc debug ucode. regRLC_GPM_GENERAL_6 ==0x08%x / fw_ver == %i \n",
+ rlc_ucode_ver, adev->gfx.rlc_fw_version);
+ /* RLC_GPM_TIMER_INT_3 : Timer interval in RefCLK cycles,
+ * default is 0x9C4 to create a 100us interval */
+ WREG32_SOC15(GC, 0, regRLC_GPM_TIMER_INT_3, 0x9C4);
+ /* RLC_GPM_GENERAL_12 : Minimum gap between wptr and rptr
+ * to disable the page fault retry interrupts, default is
+ * 0x100 (256) */
+ WREG32_SOC15(GC, 0, regRLC_GPM_GENERAL_12, 0x100);
+ }
+#endif
+}
+
+static int gfx_v9_4_3_rlc_load_microcode(struct amdgpu_device *adev)
+{
+ const struct rlc_firmware_header_v2_0 *hdr;
+ const __le32 *fw_data;
+ unsigned i, fw_size;
+
+ if (!adev->gfx.rlc_fw)
+ return -EINVAL;
+
+ hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
+ amdgpu_ucode_print_rlc_hdr(&hdr->header);
+
+ fw_data = (const __le32 *)(adev->gfx.rlc_fw->data +
+ le32_to_cpu(hdr->header.ucode_array_offset_bytes));
+ fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
+
+ WREG32_SOC15(GC, 0, regRLC_GPM_UCODE_ADDR,
+ RLCG_UCODE_LOADING_START_ADDRESS);
+ for (i = 0; i < fw_size; i++) {
+ if (amdgpu_emu_mode == 1 && i % 100 == 0) {
+ dev_info(adev->dev, "Write RLC ucode data %u DWs\n", i);
+ msleep(1);
+ }
+ WREG32_SOC15(GC, 0, regRLC_GPM_UCODE_DATA, le32_to_cpup(fw_data++));
+ }
+ WREG32_SOC15(GC, 0, regRLC_GPM_UCODE_ADDR, adev->gfx.rlc_fw_version);
+
+ return 0;
+}
+
+static int gfx_v9_4_3_rlc_resume(struct amdgpu_device *adev)
+{
+ int r;
+
+ adev->gfx.rlc.funcs->stop(adev);
+
+ /* disable CG */
+ WREG32_SOC15(GC, 0, regRLC_CGCG_CGLS_CTRL, 0);
+
+ /* TODO: revisit pg function */
+ /* gfx_v9_4_3_init_pg(adev);*/
+
+ if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
+ /* legacy rlc firmware loading */
+ r = gfx_v9_4_3_rlc_load_microcode(adev);
+ if (r)
+ return r;
+ }
+
+ adev->gfx.rlc.funcs->start(adev);
+
+ return 0;
+}
+
+static void gfx_v9_4_3_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
+{
+ u32 reg, data;
+
+ reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL);
+ if (amdgpu_sriov_is_pp_one_vf(adev))
+ data = RREG32_NO_KIQ(reg);
+ else
+ data = RREG32(reg);
+
+ data &= ~RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK;
+ data |= (vmid & RLC_SPM_MC_CNTL__RLC_SPM_VMID_MASK) << RLC_SPM_MC_CNTL__RLC_SPM_VMID__SHIFT;
+
+ if (amdgpu_sriov_is_pp_one_vf(adev))
+ WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
+ else
+ WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data);
+}
+
+static const struct soc15_reg_rlcg rlcg_access_gc_9_4_3[] = {
+ {SOC15_REG_ENTRY(GC, 0, regGRBM_GFX_INDEX)},
+ {SOC15_REG_ENTRY(GC, 0, regSQ_IND_INDEX)},
+};
+
+static bool gfx_v9_4_3_check_rlcg_range(struct amdgpu_device *adev,
+ uint32_t offset,
+ struct soc15_reg_rlcg *entries, int arr_size)
+{
+ int i;
+ uint32_t reg;
+
+ if (!entries)
+ return false;
+
+ for (i = 0; i < arr_size; i++) {
+ const struct soc15_reg_rlcg *entry;
+
+ entry = &entries[i];
+ reg = adev->reg_offset[entry->hwip][entry->instance][entry->segment] + entry->reg;
+ if (offset == reg)
+ return true;
+ }
+
+ return false;
+}
+
+static bool gfx_v9_4_3_is_rlcg_access_range(struct amdgpu_device *adev, u32 offset)
+{
+ return gfx_v9_4_3_check_rlcg_range(adev, offset,
+ (void *)rlcg_access_gc_9_4_3,
+ ARRAY_SIZE(rlcg_access_gc_9_4_3));
+}
+
+const struct amdgpu_rlc_funcs gfx_v9_4_3_rlc_funcs = {
+ .is_rlc_enabled = gfx_v9_4_3_is_rlc_enabled,
+ .set_safe_mode = gfx_v9_4_3_set_safe_mode,
+ .unset_safe_mode = gfx_v9_4_3_unset_safe_mode,
+ .init = gfx_v9_4_3_rlc_init,
+ .resume = gfx_v9_4_3_rlc_resume,
+ .stop = gfx_v9_4_3_rlc_stop,
+ .reset = gfx_v9_4_3_rlc_reset,
+ .start = gfx_v9_4_3_rlc_start,
+ .update_spm_vmid = gfx_v9_4_3_update_spm_vmid,
+ .is_rlcg_access_range = gfx_v9_4_3_is_rlcg_access_range,
+};
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