drm/amdgpu/gfx8: add state setup for CZ/ST GFX power gating

This sets up the CP jump table and GDS buffer and sets the
PG state registers.

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

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 1a5cbaf..f5e15f7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -1150,6 +1150,71 @@ static void gfx_v8_0_get_csb_buffer(struct amdgpu_device *adev,
        buffer[count++] = cpu_to_le32(0);
 }
 
+static void cz_init_cp_jump_table(struct amdgpu_device *adev)
+{
+       const __le32 *fw_data;
+       volatile u32 *dst_ptr;
+       int me, i, max_me = 4;
+       u32 bo_offset = 0;
+       u32 table_offset, table_size;
+
+       if (adev->asic_type == CHIP_CARRIZO)
+               max_me = 5;
+
+       /* 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;
+       }
+}
+
 static void gfx_v8_0_rlc_fini(struct amdgpu_device *adev)
 {
        int r;
@@ -1165,6 +1230,18 @@ static void gfx_v8_0_rlc_fini(struct amdgpu_device *adev)
                amdgpu_bo_unref(&adev->gfx.rlc.clear_state_obj);
                adev->gfx.rlc.clear_state_obj = NULL;
        }
+
+       /* jump table block */
+       if (adev->gfx.rlc.cp_table_obj) {
+               r = amdgpu_bo_reserve(adev->gfx.rlc.cp_table_obj, false);
+               if (unlikely(r != 0))
+                       dev_warn(adev->dev, "(%d) reserve RLC cp table bo failed\n", r);
+               amdgpu_bo_unpin(adev->gfx.rlc.cp_table_obj);
+               amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);
+
+               amdgpu_bo_unref(&adev->gfx.rlc.cp_table_obj);
+               adev->gfx.rlc.cp_table_obj = NULL;
+       }
 }
 
 static int gfx_v8_0_rlc_init(struct amdgpu_device *adev)
@@ -1221,6 +1298,46 @@ static int gfx_v8_0_rlc_init(struct amdgpu_device *adev)
                amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj);
        }
 
+       if ((adev->asic_type == CHIP_CARRIZO) ||
+           (adev->asic_type == CHIP_STONEY)) {
+               adev->gfx.rlc.cp_table_size = (96 * 5 * 4) + (64 * 1024); /* JT + GDS */
+               if (adev->gfx.rlc.cp_table_obj == NULL) {
+                       r = amdgpu_bo_create(adev, adev->gfx.rlc.cp_table_size, PAGE_SIZE, true,
+                                            AMDGPU_GEM_DOMAIN_VRAM,
+                                            AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED,
+                                            NULL, NULL,
+                                            &adev->gfx.rlc.cp_table_obj);
+                       if (r) {
+                               dev_warn(adev->dev, "(%d) create RLC cp table bo failed\n", r);
+                               return r;
+                       }
+               }
+
+               r = amdgpu_bo_reserve(adev->gfx.rlc.cp_table_obj, false);
+               if (unlikely(r != 0)) {
+                       dev_warn(adev->dev, "(%d) reserve RLC cp table bo failed\n", r);
+                       return r;
+               }
+               r = amdgpu_bo_pin(adev->gfx.rlc.cp_table_obj, AMDGPU_GEM_DOMAIN_VRAM,
+                                 &adev->gfx.rlc.cp_table_gpu_addr);
+               if (r) {
+                       amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);
+                       dev_warn(adev->dev, "(%d) pin RLC cp_table bo failed\n", r);
+                       return r;
+               }
+               r = amdgpu_bo_kmap(adev->gfx.rlc.cp_table_obj, (void **)&adev->gfx.rlc.cp_table_ptr);
+               if (r) {
+                       dev_warn(adev->dev, "(%d) map RLC cp table bo failed\n", r);
+                       return r;
+               }
+
+               cz_init_cp_jump_table(adev);
+
+               amdgpu_bo_kunmap(adev->gfx.rlc.cp_table_obj);
+               amdgpu_bo_unreserve(adev->gfx.rlc.cp_table_obj);
+
+       }
+
        return 0;
 }
 
@@ -3683,13 +3800,13 @@ static void gfx_v8_0_enable_save_restore_machine(struct amdgpu_device *adev)
        WREG32(mmRLC_SRM_CNTL, data);
 }
 
-static void polaris11_init_power_gating(struct amdgpu_device *adev)
+static void gfx_v8_0_init_power_gating(struct amdgpu_device *adev)
 {
        uint32_t data;
 
        if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
-                       AMD_PG_SUPPORT_GFX_SMG |
-                       AMD_PG_SUPPORT_GFX_DMG)) {
+                             AMD_PG_SUPPORT_GFX_SMG |
+                             AMD_PG_SUPPORT_GFX_DMG)) {
                data = RREG32(mmCP_RB_WPTR_POLL_CNTL);
                data &= ~CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT_MASK;
                data |= (0x60 << CP_RB_WPTR_POLL_CNTL__IDLE_POLL_COUNT__SHIFT);
@@ -3726,8 +3843,14 @@ static void gfx_v8_0_init_pg(struct amdgpu_device *adev)
                gfx_v8_0_init_save_restore_list(adev);
                gfx_v8_0_enable_save_restore_machine(adev);
 
-               if (adev->asic_type == CHIP_POLARIS11)
-                       polaris11_init_power_gating(adev);
+               if ((adev->asic_type == CHIP_CARRIZO) ||
+                   (adev->asic_type == CHIP_STONEY)) {
+                       WREG32(mmRLC_JUMP_TABLE_RESTORE, adev->gfx.rlc.cp_table_gpu_addr >> 8);
+                       gfx_v8_0_init_power_gating(adev);
+                       WREG32(mmRLC_PG_ALWAYS_ON_CU_MASK, adev->gfx.cu_info.ao_cu_mask);
+               } else if (adev->asic_type == CHIP_POLARIS11) {
+                       gfx_v8_0_init_power_gating(adev);
+               }
        }
 }