[PATCH v4] drm/i915: Move LRC register offsets to a header file

Michel Thierry
2018-01-23T19:51:08Z

Newer platforms may have subtle offset changes, which will increase the
number of defines, so it is probably better to start moving them to its
own header file. Also move the macros used while setting the reg state.

v2: Rename to intel_lrc_reg.h, to be consistent with i915_reg.h and
intel_guc_reg.h (Chris)

v3: License notice shenanigans.

v4: Documentation/process/coding-style.rst is always right (Chris)

Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/intel_lrc.c | 50 +-----------------------------
drivers/gpu/drm/i915/intel_lrc_reg.h | 60 ++++++++++++++++++++++++++++++++++++
2 files changed, 61 insertions(+), 49 deletions(-)
create mode 100644 drivers/gpu/drm/i915/intel_lrc_reg.h

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index bb6debbeebc0..68d777272e1b 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -137,6 +137,7 @@
#include <drm/i915_drm.h>
#include "i915_drv.h"
#include "i915_gem_render_state.h"
+#include "intel_lrc_reg.h"
#include "intel_mocs.h"

#define RING_EXECLIST_QFULL (1 << 0x2)
@@ -156,55 +157,6 @@
#define GEN8_CTX_STATUS_COMPLETED_MASK \
(GEN8_CTX_STATUS_COMPLETE | GEN8_CTX_STATUS_PREEMPTED)

-#define CTX_LRI_HEADER_0 0x01
-#define CTX_CONTEXT_CONTROL 0x02
-#define CTX_RING_HEAD 0x04
-#define CTX_RING_TAIL 0x06
-#define CTX_RING_BUFFER_START 0x08
-#define CTX_RING_BUFFER_CONTROL 0x0a
-#define CTX_BB_HEAD_U 0x0c
-#define CTX_BB_HEAD_L 0x0e
-#define CTX_BB_STATE 0x10
-#define CTX_SECOND_BB_HEAD_U 0x12
-#define CTX_SECOND_BB_HEAD_L 0x14
-#define CTX_SECOND_BB_STATE 0x16
-#define CTX_BB_PER_CTX_PTR 0x18
-#define CTX_RCS_INDIRECT_CTX 0x1a
-#define CTX_RCS_INDIRECT_CTX_OFFSET 0x1c
-#define CTX_LRI_HEADER_1 0x21
-#define CTX_CTX_TIMESTAMP 0x22
-#define CTX_PDP3_UDW 0x24
-#define CTX_PDP3_LDW 0x26
-#define CTX_PDP2_UDW 0x28
-#define CTX_PDP2_LDW 0x2a
-#define CTX_PDP1_UDW 0x2c
-#define CTX_PDP1_LDW 0x2e
-#define CTX_PDP0_UDW 0x30
-#define CTX_PDP0_LDW 0x32
-#define CTX_LRI_HEADER_2 0x41
-#define CTX_R_PWR_CLK_STATE 0x42
-#define CTX_GPGPU_CSR_BASE_ADDRESS 0x44
-
-#define CTX_REG(reg_state, pos, reg, val) do { \
- (reg_state)[(pos)+0] = i915_mmio_reg_offset(reg); \
- (reg_state)[(pos)+1] = (val); \
-} while (0)
-
-#define ASSIGN_CTX_PDP(ppgtt, reg_state, n) do { \
- const u64 _addr = i915_page_dir_dma_addr((ppgtt), (n)); \
- reg_state[CTX_PDP ## n ## _UDW+1] = upper_32_bits(_addr); \
- reg_state[CTX_PDP ## n ## _LDW+1] = lower_32_bits(_addr); \
-} while (0)
-
-#define ASSIGN_CTX_PML4(ppgtt, reg_state) do { \
- reg_state[CTX_PDP0_UDW + 1] = upper_32_bits(px_dma(&ppgtt->pml4)); \
- reg_state[CTX_PDP0_LDW + 1] = lower_32_bits(px_dma(&ppgtt->pml4)); \
-} while (0)
-
-#define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17
-#define GEN9_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x26
-#define GEN10_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x19
-
/* Typical size of the average request (2 pipecontrols and a MI_BB) */
#define EXECLISTS_REQUEST_SIZE 64 /* bytes */
#define WA_TAIL_DWORDS 2
diff --git a/drivers/gpu/drm/i915/intel_lrc_reg.h b/drivers/gpu/drm/i915/intel_lrc_reg.h
new file mode 100644
index 000000000000..7dc53707ef1a
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_lrc_reg.h
@@ -0,0 +1,60 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2014-2018 Intel Corporation
+ */
+
+#ifndef _INTEL_LRC_REG_H_
+#define _INTEL_LRC_REG_H_
+
+/* GEN8+ Reg State Context */
+#define CTX_LRI_HEADER_0 0x01
+#define CTX_CONTEXT_CONTROL 0x02
+#define CTX_RING_HEAD 0x04
+#define CTX_RING_TAIL 0x06
+#define CTX_RING_BUFFER_START 0x08
+#define CTX_RING_BUFFER_CONTROL 0x0a
+#define CTX_BB_HEAD_U 0x0c
+#define CTX_BB_HEAD_L 0x0e
+#define CTX_BB_STATE 0x10
+#define CTX_SECOND_BB_HEAD_U 0x12
+#define CTX_SECOND_BB_HEAD_L 0x14
+#define CTX_SECOND_BB_STATE 0x16
+#define CTX_BB_PER_CTX_PTR 0x18
+#define CTX_RCS_INDIRECT_CTX 0x1a
+#define CTX_RCS_INDIRECT_CTX_OFFSET 0x1c
+#define CTX_LRI_HEADER_1 0x21
+#define CTX_CTX_TIMESTAMP 0x22
+#define CTX_PDP3_UDW 0x24
+#define CTX_PDP3_LDW 0x26
+#define CTX_PDP2_UDW 0x28
+#define CTX_PDP2_LDW 0x2a
+#define CTX_PDP1_UDW 0x2c
+#define CTX_PDP1_LDW 0x2e
+#define CTX_PDP0_UDW 0x30
+#define CTX_PDP0_LDW 0x32
+#define CTX_LRI_HEADER_2 0x41
+#define CTX_R_PWR_CLK_STATE 0x42
+#define CTX_GPGPU_CSR_BASE_ADDRESS 0x44
+
+#define CTX_REG(reg_state, pos, reg, val) do { \
+ (reg_state)[(pos)+0] = i915_mmio_reg_offset(reg); \
+ (reg_state)[(pos)+1] = (val); \
+} while (0)
+
+#define ASSIGN_CTX_PDP(ppgtt, reg_state, n) do { \
+ const u64 _addr = i915_page_dir_dma_addr((ppgtt), (n)); \
+ reg_state[CTX_PDP ## n ## _UDW+1] = upper_32_bits(_addr); \
+ reg_state[CTX_PDP ## n ## _LDW+1] = lower_32_bits(_addr); \
+} while (0)
+
+#define ASSIGN_CTX_PML4(ppgtt, reg_state) do { \
+ reg_state[CTX_PDP0_UDW + 1] = upper_32_bits(px_dma(&ppgtt->pml4)); \
+ reg_state[CTX_PDP0_LDW + 1] = lower_32_bits(px_dma(&ppgtt->pml4)); \
+} while (0)
+
+#define GEN8_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x17
+#define GEN9_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x26
+#define GEN10_CTX_RCS_INDIRECT_CTX_OFFSET_DEFAULT 0x19
+
+#endif /* _INTEL_LRC_REG_H_ */
--
2.15.1