[PATCH 041/117] drm/amdgpu/gfx9: rlc save&restore list programming
Alex Deucher
alexdeucher at gmail.com
Wed May 10 18:46:32 UTC 2017
From: Hawking Zhang <Hawking.Zhang at amd.com>
Signed-off-by: Hawking Zhang <Hawking.Zhang at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Huang Rui <ray.huang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 169 +++++++++++++++++++++++++++++++++-
1 file changed, 168 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index d74d3f7..4732fc6 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -39,7 +39,9 @@
#define GFX9_NUM_GFX_RINGS 1
#define GFX9_NUM_COMPUTE_RINGS 8
-#define RLCG_UCODE_LOADING_START_ADDRESS 0x2000
+#define RLCG_UCODE_LOADING_START_ADDRESS 0x00002000L
+#define RLC_SAVE_RESTORE_ADDR_STARTING_OFFSET 0x00000000L
+#define GFX9_RLC_FORMAT_DIRECT_REG_LIST_LENGTH 34
MODULE_FIRMWARE("amdgpu/vega10_ce.bin");
MODULE_FIRMWARE("amdgpu/vega10_pfp.bin");
@@ -1677,6 +1679,169 @@ static void gfx_v9_0_enable_gui_idle_interrupt(struct amdgpu_device *adev,
WREG32_SOC15(GC, 0, mmCP_INT_CNTL_RING0, tmp);
}
+static void gfx_v9_0_init_csb(struct amdgpu_device *adev)
+{
+ /* csib */
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CSIB_ADDR_HI),
+ adev->gfx.rlc.clear_state_gpu_addr >> 32);
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CSIB_ADDR_LO),
+ adev->gfx.rlc.clear_state_gpu_addr & 0xfffffffc);
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_CSIB_LENGTH),
+ adev->gfx.rlc.clear_state_size);
+}
+
+static void gfx_v9_0_parse_ind_reg_list(int *register_list_format,
+ int indirect_offset,
+ int list_size,
+ int *unique_indirect_regs,
+ int *unique_indirect_reg_count,
+ int max_indirect_reg_count,
+ int *indirect_start_offsets,
+ int *indirect_start_offsets_count,
+ int max_indirect_start_offsets_count)
+{
+ int idx;
+ bool new_entry = true;
+
+ for (; indirect_offset < list_size; indirect_offset++) {
+
+ if (new_entry) {
+ new_entry = false;
+ indirect_start_offsets[*indirect_start_offsets_count] = indirect_offset;
+ *indirect_start_offsets_count = *indirect_start_offsets_count + 1;
+ BUG_ON(*indirect_start_offsets_count >= max_indirect_start_offsets_count);
+ }
+
+ if (register_list_format[indirect_offset] == 0xFFFFFFFF) {
+ new_entry = true;
+ continue;
+ }
+
+ indirect_offset += 2;
+
+ /* look for the matching indice */
+ for (idx = 0; idx < *unique_indirect_reg_count; idx++) {
+ if (unique_indirect_regs[idx] ==
+ register_list_format[indirect_offset])
+ break;
+ }
+
+ if (idx >= *unique_indirect_reg_count) {
+ unique_indirect_regs[*unique_indirect_reg_count] =
+ register_list_format[indirect_offset];
+ idx = *unique_indirect_reg_count;
+ *unique_indirect_reg_count = *unique_indirect_reg_count + 1;
+ BUG_ON(*unique_indirect_reg_count >= max_indirect_reg_count);
+ }
+
+ register_list_format[indirect_offset] = idx;
+ }
+}
+
+static int gfx_v9_0_init_rlc_save_restore_list(struct amdgpu_device *adev)
+{
+ int unique_indirect_regs[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
+ int unique_indirect_reg_count = 0;
+
+ int indirect_start_offsets[] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0};
+ int indirect_start_offsets_count = 0;
+
+ int list_size = 0;
+ int i = 0;
+ u32 tmp = 0;
+
+ u32 *register_list_format =
+ kmalloc(adev->gfx.rlc.reg_list_format_size_bytes, GFP_KERNEL);
+ if (!register_list_format)
+ return -ENOMEM;
+ memcpy(register_list_format, adev->gfx.rlc.register_list_format,
+ adev->gfx.rlc.reg_list_format_size_bytes);
+
+ /* setup unique_indirect_regs array and indirect_start_offsets array */
+ gfx_v9_0_parse_ind_reg_list(register_list_format,
+ GFX9_RLC_FORMAT_DIRECT_REG_LIST_LENGTH,
+ adev->gfx.rlc.reg_list_format_size_bytes >> 2,
+ unique_indirect_regs,
+ &unique_indirect_reg_count,
+ sizeof(unique_indirect_regs)/sizeof(int),
+ indirect_start_offsets,
+ &indirect_start_offsets_count,
+ sizeof(indirect_start_offsets)/sizeof(int));
+
+ /* enable auto inc in case it is disabled */
+ tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL));
+ tmp |= RLC_SRM_CNTL__AUTO_INCR_ADDR_MASK;
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL), tmp);
+
+ /* write register_restore table to offset 0x0 using RLC_SRM_ARAM_ADDR/DATA */
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_ARAM_ADDR),
+ RLC_SAVE_RESTORE_ADDR_STARTING_OFFSET);
+ for (i = 0; i < adev->gfx.rlc.reg_list_size_bytes >> 2; i++)
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_ARAM_DATA),
+ adev->gfx.rlc.register_restore[i]);
+
+ /* load direct register */
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_ARAM_ADDR), 0);
+ for (i = 0; i < adev->gfx.rlc.reg_list_size_bytes >> 2; i++)
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_ARAM_DATA),
+ adev->gfx.rlc.register_restore[i]);
+
+ /* load indirect register */
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_ADDR),
+ adev->gfx.rlc.reg_list_format_start);
+ for (i = 0; i < adev->gfx.rlc.reg_list_format_size_bytes >> 2; i++)
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_DATA),
+ register_list_format[i]);
+
+ /* set save/restore list size */
+ list_size = adev->gfx.rlc.reg_list_size_bytes >> 2;
+ list_size = list_size >> 1;
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_ADDR),
+ adev->gfx.rlc.reg_restore_list_size);
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_DATA), list_size);
+
+ /* write the starting offsets to RLC scratch ram */
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_ADDR),
+ adev->gfx.rlc.starting_offsets_start);
+ for (i = 0; i < sizeof(indirect_start_offsets)/sizeof(int); i++)
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_SCRATCH_DATA),
+ indirect_start_offsets[i]);
+
+ /* load unique indirect regs*/
+ for (i = 0; i < sizeof(unique_indirect_regs)/sizeof(int); i++) {
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_INDEX_CNTL_ADDR_0) + i,
+ unique_indirect_regs[i] & 0x3FFFF);
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_INDEX_CNTL_DATA_0) + i,
+ unique_indirect_regs[i] >> 20);
+ }
+
+ kfree(register_list_format);
+ return 0;
+}
+
+static void gfx_v9_0_enable_save_restore_machine(struct amdgpu_device *adev)
+{
+ u32 tmp = 0;
+
+ tmp = RREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL));
+ tmp |= RLC_SRM_CNTL__SRM_ENABLE_MASK;
+ WREG32(SOC15_REG_OFFSET(GC, 0, mmRLC_SRM_CNTL), tmp);
+}
+
+static void gfx_v9_0_init_pg(struct amdgpu_device *adev)
+{
+ if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG |
+ AMD_PG_SUPPORT_GFX_SMG |
+ AMD_PG_SUPPORT_GFX_DMG |
+ AMD_PG_SUPPORT_CP |
+ AMD_PG_SUPPORT_GDS |
+ AMD_PG_SUPPORT_RLC_SMU_HS)) {
+ gfx_v9_0_init_csb(adev);
+ gfx_v9_0_init_rlc_save_restore_list(adev);
+ gfx_v9_0_enable_save_restore_machine(adev);
+ }
+}
+
void gfx_v9_0_rlc_stop(struct amdgpu_device *adev)
{
u32 tmp = RREG32_SOC15(GC, 0, mmRLC_CNTL);
@@ -1770,6 +1935,8 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
gfx_v9_0_rlc_reset(adev);
+ gfx_v9_0_init_pg(adev);
+
if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
/* legacy rlc firmware loading */
r = gfx_v9_0_rlc_load_microcode(adev);
--
2.5.5
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