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Subject[PATCH v7 09/11] media: hantro: Prepare for other G2 codecs
Date
VeriSilicon Hantro G2 core supports other codecs besides hevc.
Factor out some common code in preparation for vp9 support.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
---
drivers/staging/media/hantro/Makefile | 1 +
drivers/staging/media/hantro/hantro.h | 7 +++++
drivers/staging/media/hantro/hantro_drv.c | 5 +++
drivers/staging/media/hantro/hantro_g2.c | 27 ++++++++++++++++
.../staging/media/hantro/hantro_g2_hevc_dec.c | 31 -------------------
drivers/staging/media/hantro/hantro_g2_regs.h | 7 +++++
drivers/staging/media/hantro/hantro_hw.h | 2 ++
7 files changed, 49 insertions(+), 31 deletions(-)
create mode 100644 drivers/staging/media/hantro/hantro_g2.c

diff --git a/drivers/staging/media/hantro/Makefile b/drivers/staging/media/hantro/Makefile
index 90036831fec4..fe6d84871d07 100644
--- a/drivers/staging/media/hantro/Makefile
+++ b/drivers/staging/media/hantro/Makefile
@@ -12,6 +12,7 @@ hantro-vpu-y += \
hantro_g1_mpeg2_dec.o \
hantro_g2_hevc_dec.o \
hantro_g1_vp8_dec.o \
+ hantro_g2.o \
rockchip_vpu2_hw_jpeg_enc.o \
rockchip_vpu2_hw_h264_dec.o \
rockchip_vpu2_hw_mpeg2_dec.o \
diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
index dd5e56765d4e..d91eb2b1c509 100644
--- a/drivers/staging/media/hantro/hantro.h
+++ b/drivers/staging/media/hantro/hantro.h
@@ -369,6 +369,13 @@ static inline void vdpu_write(struct hantro_dev *vpu, u32 val, u32 reg)
writel(val, vpu->dec_base + reg);
}

+static inline void hantro_write_addr(struct hantro_dev *vpu,
+ unsigned long offset,
+ dma_addr_t addr)
+{
+ vdpu_write(vpu, addr & 0xffffffff, offset);
+}
+
static inline u32 vdpu_read(struct hantro_dev *vpu, u32 reg)
{
u32 val = readl(vpu->dec_base + reg);
diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 8a2edd67f2c6..e8eee117d97f 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -905,6 +905,11 @@ static int hantro_probe(struct platform_device *pdev)
vpu->enc_base = vpu->reg_bases[0] + vpu->variant->enc_offset;
vpu->dec_base = vpu->reg_bases[0] + vpu->variant->dec_offset;

+ /**
+ * TODO: Eventually allow taking advantage of full 64-bit address space.
+ * Until then we assume the MSB portion of buffers' base addresses is
+ * always 0 due to this masking operation.
+ */
ret = dma_set_coherent_mask(vpu->dev, DMA_BIT_MASK(32));
if (ret) {
dev_err(vpu->dev, "Could not set DMA coherent mask.\n");
diff --git a/drivers/staging/media/hantro/hantro_g2.c b/drivers/staging/media/hantro/hantro_g2.c
new file mode 100644
index 000000000000..5f7bb27913de
--- /dev/null
+++ b/drivers/staging/media/hantro/hantro_g2.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hantro VPU codec driver
+ *
+ * Copyright (C) 2021 Collabora Ltd, Andrzej Pietrasiewicz <andrzej.p@collabora.com>
+ */
+
+#include "hantro_hw.h"
+#include "hantro_g2_regs.h"
+
+void hantro_g2_check_idle(struct hantro_dev *vpu)
+{
+ int i;
+
+ for (i = 0; i < 3; i++) {
+ u32 status;
+
+ /* Make sure the VPU is idle */
+ status = vdpu_read(vpu, G2_REG_INTERRUPT);
+ if (status & G2_REG_INTERRUPT_DEC_E) {
+ dev_warn(vpu->dev, "device still running, aborting");
+ status |= G2_REG_INTERRUPT_DEC_ABORT_E | G2_REG_INTERRUPT_DEC_IRQ_DIS;
+ vdpu_write(vpu, status, G2_REG_INTERRUPT);
+ }
+ }
+}
+
diff --git a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
index 97da719a9844..2797825cef47 100644
--- a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
+++ b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
@@ -8,20 +8,6 @@
#include "hantro_hw.h"
#include "hantro_g2_regs.h"

-#define HEVC_DEC_MODE 0xC
-
-#define BUS_WIDTH_32 0
-#define BUS_WIDTH_64 1
-#define BUS_WIDTH_128 2
-#define BUS_WIDTH_256 3
-
-static inline void hantro_write_addr(struct hantro_dev *vpu,
- unsigned long offset,
- dma_addr_t addr)
-{
- vdpu_write(vpu, addr & 0xffffffff, offset);
-}
-
static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
@@ -516,23 +502,6 @@ static void set_buffers(struct hantro_ctx *ctx)
hantro_write_addr(vpu, G2_TILE_BSD_ADDR, ctx->hevc_dec.tile_bsd.dma);
}

-static void hantro_g2_check_idle(struct hantro_dev *vpu)
-{
- int i;
-
- for (i = 0; i < 3; i++) {
- u32 status;
-
- /* Make sure the VPU is idle */
- status = vdpu_read(vpu, G2_REG_INTERRUPT);
- if (status & G2_REG_INTERRUPT_DEC_E) {
- dev_warn(vpu->dev, "device still running, aborting");
- status |= G2_REG_INTERRUPT_DEC_ABORT_E | G2_REG_INTERRUPT_DEC_IRQ_DIS;
- vdpu_write(vpu, status, G2_REG_INTERRUPT);
- }
- }
-}
-
int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;
diff --git a/drivers/staging/media/hantro/hantro_g2_regs.h b/drivers/staging/media/hantro/hantro_g2_regs.h
index 24b18f839ff8..136ba6d98a1f 100644
--- a/drivers/staging/media/hantro/hantro_g2_regs.h
+++ b/drivers/staging/media/hantro/hantro_g2_regs.h
@@ -27,6 +27,13 @@
#define G2_REG_INTERRUPT_DEC_IRQ_DIS BIT(4)
#define G2_REG_INTERRUPT_DEC_E BIT(0)

+#define HEVC_DEC_MODE 0xc
+
+#define BUS_WIDTH_32 0
+#define BUS_WIDTH_64 1
+#define BUS_WIDTH_128 2
+#define BUS_WIDTH_256 3
+
#define g2_strm_swap G2_DEC_REG(2, 28, 0xf)
#define g2_dirmv_swap G2_DEC_REG(2, 20, 0xf)

diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 4323e63dfbfc..42b3f3961f75 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -308,4 +308,6 @@ void hantro_vp8_dec_exit(struct hantro_ctx *ctx);
void hantro_vp8_prob_update(struct hantro_ctx *ctx,
const struct v4l2_ctrl_vp8_frame *hdr);

+void hantro_g2_check_idle(struct hantro_dev *vpu);
+
#endif /* HANTRO_HW_H_ */
--
2.17.1
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