Calculate all the addresses and pointers in amdgpu_ih.c
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c | 34 +++++++++++++++--------
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h | 23 +++++++++-------
drivers/gpu/drm/amd/amdgpu/cik_ih.c | 9 +++----
drivers/gpu/drm/amd/amdgpu/cz_ih.c | 11 ++++----
drivers/gpu/drm/amd/amdgpu/iceland_ih.c | 9 +++----
drivers/gpu/drm/amd/amdgpu/si_ih.c | 9 +++----
drivers/gpu/drm/amd/amdgpu/tonga_ih.c | 27 +++++--------------
drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 36 +++++++++----------------
8 files changed, 73 insertions(+), 85 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
index fb8dd6179926..d0a5db777b6d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
@@ -52,6 +52,8 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
ih->use_bus_addr = use_bus_addr;
if (use_bus_addr) {
+ dma_addr_t dma_addr;
+
if (ih->ring)
return 0;
@@ -59,21 +61,26 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
* add them to the end of the ring allocation.
*/
ih->ring = dma_alloc_coherent(adev->dev, ih->ring_size + 8,
- &ih->rb_dma_addr, GFP_KERNEL);
+ &dma_addr, GFP_KERNEL);
if (ih->ring == NULL)
return -ENOMEM;
memset((void *)ih->ring, 0, ih->ring_size + 8);
- ih->wptr_offs = (ih->ring_size / 4) + 0;
- ih->rptr_offs = (ih->ring_size / 4) + 1;
+ ih->gpu_addr = dma_addr;
+ ih->wptr_addr = dma_addr + ih->ring_size;
+ ih->wptr_cpu = &ih->ring[ih->ring_size / 4];
+ ih->rptr_addr = dma_addr + ih->ring_size + 4;
+ ih->rptr_cpu = &ih->ring[(ih->ring_size / 4) + 1];
} else {
- r = amdgpu_device_wb_get(adev, &ih->wptr_offs);
+ unsigned wptr_offs, rptr_offs;
+
+ r = amdgpu_device_wb_get(adev, &wptr_offs);
if (r)
return r;
- r = amdgpu_device_wb_get(adev, &ih->rptr_offs);
+ r = amdgpu_device_wb_get(adev, &rptr_offs);
if (r) {
- amdgpu_device_wb_free(adev, ih->wptr_offs);
+ amdgpu_device_wb_free(adev, wptr_offs);
return r;
}
@@ -82,10 +89,15 @@ int amdgpu_ih_ring_init(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
&ih->ring_obj, &ih->gpu_addr,
(void **)&ih->ring);
if (r) {
- amdgpu_device_wb_free(adev, ih->rptr_offs);
- amdgpu_device_wb_free(adev, ih->wptr_offs);
+ amdgpu_device_wb_free(adev, rptr_offs);
+ amdgpu_device_wb_free(adev, wptr_offs);
return r;
}
+
+ ih->wptr_addr = adev->wb.gpu_addr + wptr_offs * 4;
+ ih->wptr_cpu = &adev->wb.wb[wptr_offs];
+ ih->rptr_addr = adev->wb.gpu_addr + rptr_offs * 4;
+ ih->rptr_cpu = &adev->wb.wb[rptr_offs];
}
return 0;
}
@@ -109,13 +121,13 @@ void amdgpu_ih_ring_fini(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih)
* add them to the end of the ring allocation.
*/
dma_free_coherent(adev->dev, ih->ring_size + 8,
- (void *)ih->ring, ih->rb_dma_addr);
+ (void *)ih->ring, ih->gpu_addr);
ih->ring = NULL;
} else {
amdgpu_bo_free_kernel(&ih->ring_obj, &ih->gpu_addr,
(void **)&ih->ring);
- amdgpu_device_wb_free(adev, ih->wptr_offs);
- amdgpu_device_wb_free(adev, ih->rptr_offs);
+ amdgpu_device_wb_free(adev, (ih->wptr_addr - ih->gpu_addr) / 4);
+ amdgpu_device_wb_free(adev, (ih->rptr_addr - ih->gpu_addr) / 4);
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
index d810fd73d574..1ccb1831382a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ih.h
@@ -31,20 +31,25 @@ struct amdgpu_iv_entry;
* R6xx+ IH ring
*/
struct amdgpu_ih_ring {
- struct amdgpu_bo *ring_obj;
- volatile uint32_t *ring;
- unsigned rptr;
unsigned ring_size;
- uint64_t gpu_addr;
uint32_t ptr_mask;
- atomic_t lock;
- bool enabled;
- unsigned wptr_offs;
- unsigned rptr_offs;
u32 doorbell_index;
bool use_doorbell;
bool use_bus_addr;
- dma_addr_t rb_dma_addr; /* only used when use_bus_addr = true */
+
+ struct amdgpu_bo *ring_obj;
+ volatile uint32_t *ring;
+ uint64_t gpu_addr;
+
+ uint64_t wptr_addr;
+ volatile uint32_t *wptr_cpu;
+
+ uint64_t rptr_addr;
+ volatile uint32_t *rptr_cpu;
+
+ bool enabled;
+ unsigned rptr;
+ atomic_t lock;
};
/* provided by the ih block */
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_ih.c b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
index 884aa9b81e86..721c757156e8 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
@@ -103,9 +103,9 @@ static void cik_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int cik_ih_irq_init(struct amdgpu_device *adev)
{
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
int rb_bufsz;
u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
- u64 wptr_off;
/* disable irqs */
cik_ih_disable_interrupts(adev);
@@ -131,9 +131,8 @@ static int cik_ih_irq_init(struct amdgpu_device *adev)
ih_rb_cntl |= IH_RB_CNTL__WPTR_WRITEBACK_ENABLE_MASK;
/* set the writeback address whether it's enabled or not */
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFF);
+ WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(ih->wptr_addr));
+ WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(ih->wptr_addr) & 0xFF);
WREG32(mmIH_RB_CNTL, ih_rb_cntl);
@@ -188,7 +187,7 @@ static u32 cik_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (wptr & IH_RB_WPTR__RB_OVERFLOW_MASK) {
wptr &= ~IH_RB_WPTR__RB_OVERFLOW_MASK;
diff --git a/drivers/gpu/drm/amd/amdgpu/cz_ih.c b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
index c59eed041fb5..61024b9c7a4b 100644
--- a/drivers/gpu/drm/amd/amdgpu/cz_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cz_ih.c
@@ -103,9 +103,9 @@ static void cz_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int cz_ih_irq_init(struct amdgpu_device *adev)
{
- int rb_bufsz;
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
- u64 wptr_off;
+ int rb_bufsz;
/* disable irqs */
cz_ih_disable_interrupts(adev);
@@ -133,9 +133,8 @@ static int cz_ih_irq_init(struct amdgpu_device *adev)
ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_WRITEBACK_ENABLE, 1);
/* set the writeback address whether it's enabled or not */
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFF);
+ WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(ih->wptr_addr));
+ WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(ih->wptr_addr) & 0xFF);
WREG32(mmIH_RB_CNTL, ih_rb_cntl);
@@ -190,7 +189,7 @@ static u32 cz_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW)) {
wptr = REG_SET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW, 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
index f006ed509db3..b1626e1d2f5d 100644
--- a/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/iceland_ih.c
@@ -103,9 +103,9 @@ static void iceland_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int iceland_ih_irq_init(struct amdgpu_device *adev)
{
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
int rb_bufsz;
u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
- u64 wptr_off;
/* disable irqs */
iceland_ih_disable_interrupts(adev);
@@ -133,9 +133,8 @@ static int iceland_ih_irq_init(struct amdgpu_device *adev)
ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_WRITEBACK_ENABLE, 1);
/* set the writeback address whether it's enabled or not */
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFF);
+ WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(ih->wptr_addr));
+ WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(ih->wptr_addr) & 0xFF);
WREG32(mmIH_RB_CNTL, ih_rb_cntl);
@@ -190,7 +189,7 @@ static u32 iceland_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW)) {
wptr = REG_SET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW, 0);
diff --git a/drivers/gpu/drm/amd/amdgpu/si_ih.c b/drivers/gpu/drm/amd/amdgpu/si_ih.c
index 5cabc9687f76..8c50c9cab455 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_ih.c
@@ -57,9 +57,9 @@ static void si_ih_disable_interrupts(struct amdgpu_device *adev)
static int si_ih_irq_init(struct amdgpu_device *adev)
{
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
int rb_bufsz;
u32 interrupt_cntl, ih_cntl, ih_rb_cntl;
- u64 wptr_off;
si_ih_disable_interrupts(adev);
WREG32(INTERRUPT_CNTL2, adev->irq.ih.gpu_addr >> 8);
@@ -76,9 +76,8 @@ static int si_ih_irq_init(struct amdgpu_device *adev)
(rb_bufsz << 1) |
IH_WPTR_WRITEBACK_ENABLE;
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32(IH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFF);
+ WREG32(IH_RB_WPTR_ADDR_LO, lower_32_bits(ih->wptr_addr));
+ WREG32(IH_RB_WPTR_ADDR_HI, upper_32_bits(ih->wptr_addr) & 0xFF);
WREG32(IH_RB_CNTL, ih_rb_cntl);
WREG32(IH_RB_RPTR, 0);
WREG32(IH_RB_WPTR, 0);
@@ -105,7 +104,7 @@ static u32 si_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (wptr & IH_RB_WPTR__RB_OVERFLOW_MASK) {
wptr &= ~IH_RB_WPTR__RB_OVERFLOW_MASK;
diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
index 30e3911dedb5..a20b711a6756 100644
--- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c
@@ -99,9 +99,9 @@ static void tonga_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int tonga_ih_irq_init(struct amdgpu_device *adev)
{
- int rb_bufsz;
u32 interrupt_cntl, ih_rb_cntl, ih_doorbell_rtpr;
- u64 wptr_off;
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
+ int rb_bufsz;
/* disable irqs */
tonga_ih_disable_interrupts(adev);
@@ -118,10 +118,7 @@ static int tonga_ih_irq_init(struct amdgpu_device *adev)
WREG32(mmINTERRUPT_CNTL, interrupt_cntl);
/* Ring Buffer base. [39:8] of 40-bit address of the beginning of the ring buffer*/
- if (adev->irq.ih.use_bus_addr)
- WREG32(mmIH_RB_BASE, adev->irq.ih.rb_dma_addr >> 8);
- else
- WREG32(mmIH_RB_BASE, adev->irq.ih.gpu_addr >> 8);
+ WREG32(mmIH_RB_BASE, ih->gpu_addr >> 8);
rb_bufsz = order_base_2(adev->irq.ih.ring_size / 4);
ih_rb_cntl = REG_SET_FIELD(0, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
@@ -136,12 +133,8 @@ static int tonga_ih_irq_init(struct amdgpu_device *adev)
WREG32(mmIH_RB_CNTL, ih_rb_cntl);
/* set the writeback address whether it's enabled or not */
- if (adev->irq.ih.use_bus_addr)
- wptr_off = adev->irq.ih.rb_dma_addr + (adev->irq.ih.wptr_offs * 4);
- else
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFF);
+ WREG32(mmIH_RB_WPTR_ADDR_LO, lower_32_bits(ih->wptr_addr));
+ WREG32(mmIH_RB_WPTR_ADDR_HI, upper_32_bits(ih->wptr_addr) & 0xFF);
/* set rptr, wptr to 0 */
WREG32(mmIH_RB_RPTR, 0);
@@ -198,10 +191,7 @@ static u32 tonga_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- if (adev->irq.ih.use_bus_addr)
- wptr = le32_to_cpu(ih->ring[ih->wptr_offs]);
- else
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW)) {
wptr = REG_SET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW, 0);
@@ -263,10 +253,7 @@ static void tonga_ih_set_rptr(struct amdgpu_device *adev,
{
if (ih->use_doorbell) {
/* XXX check if swapping is necessary on BE */
- if (ih->use_bus_addr)
- ih->ring[ih->rptr_offs] = ih->rptr;
- else
- adev->wb.wb[ih->rptr_offs] = ih->rptr;
+ *ih->rptr_cpu = ih->rptr;
WDOORBELL32(ih->doorbell_index, ih->rptr);
} else {
WREG32(mmIH_RB_RPTR, ih->rptr);
diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index 28b0e9a6cc42..3e9ebb0de94d 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -86,11 +86,11 @@ static void vega10_ih_disable_interrupts(struct amdgpu_device *adev)
*/
static int vega10_ih_irq_init(struct amdgpu_device *adev)
{
+ struct amdgpu_ih_ring *ih = &adev->irq.ih;
int ret = 0;
int rb_bufsz;
u32 ih_rb_cntl, ih_doorbell_rtpr;
u32 tmp;
- u64 wptr_off;
/* disable irqs */
vega10_ih_disable_interrupts(adev);
@@ -99,15 +99,11 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
ih_rb_cntl = RREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL);
/* Ring Buffer base. [39:8] of 40-bit address of the beginning of the ring buffer*/
- if (adev->irq.ih.use_bus_addr) {
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE, adev->irq.ih.rb_dma_addr >> 8);
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI, ((u64)adev->irq.ih.rb_dma_addr >> 40) & 0xff);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SPACE, 1);
- } else {
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE, adev->irq.ih.gpu_addr >> 8);
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI, (adev->irq.ih.gpu_addr >> 40) & 0xff);
- ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SPACE, 4);
- }
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE, adev->irq.ih.gpu_addr >> 8);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_BASE_HI,
+ (adev->irq.ih.gpu_addr >> 40) & 0xff);
+ ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, MC_SPACE,
+ ih->use_bus_addr ? 1 : 4);
rb_bufsz = order_base_2(adev->irq.ih.ring_size / 4);
ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_OVERFLOW_CLEAR, 1);
ih_rb_cntl = REG_SET_FIELD(ih_rb_cntl, IH_RB_CNTL, WPTR_OVERFLOW_ENABLE, 1);
@@ -124,12 +120,10 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
WREG32_SOC15(OSSSYS, 0, mmIH_RB_CNTL, ih_rb_cntl);
/* set the writeback address whether it's enabled or not */
- if (adev->irq.ih.use_bus_addr)
- wptr_off = adev->irq.ih.rb_dma_addr + (adev->irq.ih.wptr_offs * 4);
- else
- wptr_off = adev->wb.gpu_addr + (adev->irq.ih.wptr_offs * 4);
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_ADDR_LO, lower_32_bits(wptr_off));
- WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_ADDR_HI, upper_32_bits(wptr_off) & 0xFFFF);
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_ADDR_LO,
+ lower_32_bits(ih->wptr_addr));
+ WREG32_SOC15(OSSSYS, 0, mmIH_RB_WPTR_ADDR_HI,
+ upper_32_bits(ih->wptr_addr) & 0xFFFF);
/* set rptr, wptr to 0 */
WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR, 0);
@@ -196,10 +190,7 @@ static u32 vega10_ih_get_wptr(struct amdgpu_device *adev,
{
u32 wptr, tmp;
- if (ih->use_bus_addr)
- wptr = le32_to_cpu(ih->ring[ih->wptr_offs]);
- else
- wptr = le32_to_cpu(adev->wb.wb[ih->wptr_offs]);
+ wptr = le32_to_cpu(*ih->wptr_cpu);
if (REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW)) {
wptr = REG_SET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW, 0);
@@ -275,10 +266,7 @@ static void vega10_ih_set_rptr(struct amdgpu_device *adev,
{
if (ih->use_doorbell) {
/* XXX check if swapping is necessary on BE */
- if (ih->use_bus_addr)
- ih->ring[ih->rptr_offs] = ih->rptr;
- else
- adev->wb.wb[ih->rptr_offs] = ih->rptr;
+ *ih->rptr_cpu = ih->rptr;
WDOORBELL32(ih->doorbell_index, ih->rptr);
} else {
WREG32_SOC15(OSSSYS, 0, mmIH_RB_RPTR, ih->rptr);
--
2.17.1
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