drm/radeon: add support mc ucode loading on CIK (v2)
Load the GDDR5 ucode and train the links.
v2: update ucode
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 36e0fc9..8eec582 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -65,6 +65,122 @@
extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
extern void si_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc);
+#define BONAIRE_IO_MC_REGS_SIZE 36
+
+static const u32 bonaire_io_mc_regs[BONAIRE_IO_MC_REGS_SIZE][2] =
+{
+ {0x00000070, 0x04400000},
+ {0x00000071, 0x80c01803},
+ {0x00000072, 0x00004004},
+ {0x00000073, 0x00000100},
+ {0x00000074, 0x00ff0000},
+ {0x00000075, 0x34000000},
+ {0x00000076, 0x08000014},
+ {0x00000077, 0x00cc08ec},
+ {0x00000078, 0x00000400},
+ {0x00000079, 0x00000000},
+ {0x0000007a, 0x04090000},
+ {0x0000007c, 0x00000000},
+ {0x0000007e, 0x4408a8e8},
+ {0x0000007f, 0x00000304},
+ {0x00000080, 0x00000000},
+ {0x00000082, 0x00000001},
+ {0x00000083, 0x00000002},
+ {0x00000084, 0xf3e4f400},
+ {0x00000085, 0x052024e3},
+ {0x00000087, 0x00000000},
+ {0x00000088, 0x01000000},
+ {0x0000008a, 0x1c0a0000},
+ {0x0000008b, 0xff010000},
+ {0x0000008d, 0xffffefff},
+ {0x0000008e, 0xfff3efff},
+ {0x0000008f, 0xfff3efbf},
+ {0x00000092, 0xf7ffffff},
+ {0x00000093, 0xffffff7f},
+ {0x00000095, 0x00101101},
+ {0x00000096, 0x00000fff},
+ {0x00000097, 0x00116fff},
+ {0x00000098, 0x60010000},
+ {0x00000099, 0x10010000},
+ {0x0000009a, 0x00006000},
+ {0x0000009b, 0x00001000},
+ {0x0000009f, 0x00b48000}
+};
+
+/* ucode loading */
+/**
+ * ci_mc_load_microcode - load MC ucode into the hw
+ *
+ * @rdev: radeon_device pointer
+ *
+ * Load the GDDR MC ucode into the hw (CIK).
+ * Returns 0 on success, error on failure.
+ */
+static int ci_mc_load_microcode(struct radeon_device *rdev)
+{
+ const __be32 *fw_data;
+ u32 running, blackout = 0;
+ u32 *io_mc_regs;
+ int i, ucode_size, regs_size;
+
+ if (!rdev->mc_fw)
+ return -EINVAL;
+
+ switch (rdev->family) {
+ case CHIP_BONAIRE:
+ default:
+ io_mc_regs = (u32 *)&bonaire_io_mc_regs;
+ ucode_size = CIK_MC_UCODE_SIZE;
+ regs_size = BONAIRE_IO_MC_REGS_SIZE;
+ break;
+ }
+
+ running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
+
+ if (running == 0) {
+ if (running) {
+ blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
+ WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1);
+ }
+
+ /* reset the engine and set to writable */
+ WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
+ WREG32(MC_SEQ_SUP_CNTL, 0x00000010);
+
+ /* load mc io regs */
+ for (i = 0; i < regs_size; i++) {
+ WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
+ WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
+ }
+ /* load the MC ucode */
+ fw_data = (const __be32 *)rdev->mc_fw->data;
+ for (i = 0; i < ucode_size; i++)
+ WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
+
+ /* put the engine back into the active state */
+ WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
+ WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
+ WREG32(MC_SEQ_SUP_CNTL, 0x00000001);
+
+ /* wait for training to complete */
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D0)
+ break;
+ udelay(1);
+ }
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ if (RREG32(MC_SEQ_TRAIN_WAKEUP_CNTL) & TRAIN_DONE_D1)
+ break;
+ udelay(1);
+ }
+
+ if (running)
+ WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
+ }
+
+ return 0;
+}
+
/**
* cik_init_microcode - load ucode images from disk
*