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Radeon 5450 working branch #3

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cbbe555
Current work on Radeon 5450 card based on Coreforge's patch.
geerlingguy Apr 12, 2022
180b317
Fixing a few missing memset_io and memcpy_io calls.
geerlingguy Apr 13, 2022
af1da8e
Adding almost all the rest of the changes from Coreforge's branch.
geerlingguy Apr 13, 2022
5b4656f
Add one last missing change from Coreforge's repo.
geerlingguy Apr 13, 2022
6b53bfe
Debug info for memset_io_pcie_wb.
geerlingguy Apr 14, 2022
2b2f1b9
Use RADEON_GEM_GTT_UC in radeon_ttm_placement_from_domain.
geerlingguy Apr 14, 2022
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2 changes: 1 addition & 1 deletion arch/arm64/mm/ioremap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -87,7 +87,7 @@ void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size)
if (pfn_is_map_memory(__phys_to_pfn(phys_addr)))
return (void __iomem *)__phys_to_virt(phys_addr);

return __ioremap_caller(phys_addr, size, __pgprot(PROT_NORMAL),
return __ioremap_caller(phys_addr, size, __pgprot(PROT_DEVICE_nGnRE),
__builtin_return_address(0));
}
EXPORT_SYMBOL(ioremap_cache);
Expand Down
4 changes: 2 additions & 2 deletions drivers/gpu/drm/radeon/atom.c
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Original file line number Diff line number Diff line change
Expand Up @@ -729,8 +729,8 @@ static void atom_op_jump(atom_exec_context *ctx, int *ptr, int arg)
cjiffies = jiffies;
if (time_after(cjiffies, ctx->last_jump_jiffies)) {
cjiffies -= ctx->last_jump_jiffies;
if ((jiffies_to_msecs(cjiffies) > 5000)) {
DRM_ERROR("atombios stuck in loop for more than 5secs aborting\n");
if ((jiffies_to_msecs(cjiffies) > 30000)) {
DRM_ERROR("atombios stuck in loop for more than 30secs aborting\n");
ctx->abort = true;
}
} else {
Expand Down
7 changes: 7 additions & 0 deletions drivers/gpu/drm/radeon/evergreen.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5029,6 +5029,7 @@ static int evergreen_startup(struct radeon_device *rdev)
if (r)
return r;
}

evergreen_gpu_init(rdev);

/* allocate rlc buffers */
Expand All @@ -5044,11 +5045,17 @@ static int evergreen_startup(struct radeon_device *rdev)
}
}

/* TODO: Dying after here currently. */
printk(KERN_ALERT "DEBUG: Passed %s %d \n",__FUNCTION__,__LINE__); msleep(200);

/* allocate wb buffer */
r = radeon_wb_init(rdev);
if (r)
return r;

/* TODO: Dying before here currently. */
printk(KERN_ALERT "DEBUG: Passed %s %d \n",__FUNCTION__,__LINE__); msleep(200);

r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
if (r) {
dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
Expand Down
2 changes: 2 additions & 0 deletions drivers/gpu/drm/radeon/evergreen_dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,8 @@ struct radeon_fence *evergreen_copy_dma(struct radeon_device *rdev,
radeon_ring_unlock_commit(rdev, ring, false);
radeon_sync_free(rdev, &sync, fence);

r600_dma_ring_test(rdev, ring);

return fence;
}

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9 changes: 6 additions & 3 deletions drivers/gpu/drm/radeon/r600.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2625,6 +2625,7 @@ u32 r600_gfx_get_rptr(struct radeon_device *rdev,
else
rptr = RREG32(R600_CP_RB_RPTR);

mb(); //CHANGED
return rptr;
}

Expand Down Expand Up @@ -3483,7 +3484,7 @@ int r600_ih_ring_alloc(struct radeon_device *rdev)
if (rdev->ih.ring_obj == NULL) {
r = radeon_bo_create(rdev, rdev->ih.ring_size,
PAGE_SIZE, true,
RADEON_GEM_DOMAIN_GTT, 0,
RADEON_GEM_DOMAIN_VRAM, 0,
NULL, NULL, &rdev->ih.ring_obj);
if (r) {
DRM_ERROR("radeon: failed to create ih ring buffer (%d).\n", r);
Expand All @@ -3493,7 +3494,7 @@ int r600_ih_ring_alloc(struct radeon_device *rdev)
if (unlikely(r != 0))
return r;
r = radeon_bo_pin(rdev->ih.ring_obj,
RADEON_GEM_DOMAIN_GTT,
RADEON_GEM_DOMAIN_VRAM,
&rdev->ih.gpu_addr);
if (r) {
radeon_bo_unreserve(rdev->ih.ring_obj);
Expand Down Expand Up @@ -4038,8 +4039,10 @@ static u32 r600_get_ih_wptr(struct radeon_device *rdev)
{
u32 wptr, tmp;

if (rdev->wb.enabled)
if (rdev->wb.enabled) {
wptr = le32_to_cpu(rdev->wb.wb[R600_WB_IH_WPTR_OFFSET/4]);
mb();
}
else
wptr = RREG32(IH_RB_WPTR);

Expand Down
4 changes: 4 additions & 0 deletions drivers/gpu/drm/radeon/r600_dma.c
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Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,7 @@ uint32_t r600_dma_get_rptr(struct radeon_device *rdev,
else
rptr = RREG32(DMA_RB_RPTR);

mb(); //CHANGED
return (rptr & 0x3fffc) >> 2;
}

Expand Down Expand Up @@ -245,6 +246,7 @@ int r600_dma_ring_test(struct radeon_device *rdev,
tmp = 0xCAFEDEAD;
rdev->wb.wb[index/4] = cpu_to_le32(tmp);

mb(); //CHANGED
r = radeon_ring_lock(rdev, ring, 4);
if (r) {
DRM_ERROR("radeon: dma failed to lock ring %d (%d).\n", ring->idx, r);
Expand All @@ -258,6 +260,7 @@ int r600_dma_ring_test(struct radeon_device *rdev,

for (i = 0; i < rdev->usec_timeout; i++) {
tmp = le32_to_cpu(rdev->wb.wb[index/4]);
mb(); //CHANGED
if (tmp == 0xDEADBEEF)
break;
udelay(1);
Expand Down Expand Up @@ -379,6 +382,7 @@ int r600_dma_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
r = 0;
for (i = 0; i < rdev->usec_timeout; i++) {
tmp = le32_to_cpu(rdev->wb.wb[index/4]);
mb(); //CHANGED
if (tmp == 0xDEADBEEF)
break;
udelay(1);
Expand Down
34 changes: 34 additions & 0 deletions drivers/gpu/drm/radeon/radeon.h
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Original file line number Diff line number Diff line change
Expand Up @@ -370,6 +370,7 @@ struct radeon_fence_driver {
atomic64_t last_seq;
bool initialized, delayed_irq;
struct delayed_work lockup_work;
dma_addr_t dma_addr;
};

struct radeon_fence {
Expand Down Expand Up @@ -668,6 +669,8 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
dma_addr_t *dma_addr, uint32_t flags);


void radeon_gart_sync_all_for_device(struct radeon_device *rdev);

/*
* GPU MC structures, functions & helpers
*/
Expand Down Expand Up @@ -2237,6 +2240,13 @@ void radeon_agp_disable(struct radeon_device *rdev);
int radeon_asic_init(struct radeon_device *rdev);


/*
* memcpy_io and memset_io functions that work on a raspberry pi 4
*/
void memcpy_fromio_pcie(void *to, const volatile void __iomem *from, size_t count);
void memcpy_toio_pcie(volatile void __iomem *to, const void *from, size_t count);
void memset_io_pcie(volatile void __iomem *dst, int c, size_t count);

/*
* IOCTL.
*/
Expand Down Expand Up @@ -2337,6 +2347,11 @@ struct radeon_atcs {
typedef uint32_t (*radeon_rreg_t)(struct radeon_device*, uint32_t);
typedef void (*radeon_wreg_t)(struct radeon_device*, uint32_t, uint32_t);

struct moved_bos_entry{
struct radeon_bo* bo;
struct list_head list;
};

struct radeon_device {
struct device *dev;
struct drm_device *ddev;
Expand Down Expand Up @@ -2482,6 +2497,25 @@ struct radeon_device {
/* tracking pinned memory */
u64 vram_pin_size;
u64 gart_pin_size;
struct radeon_bo *rick;
uint64_t rick_gpu;
void *rick_cpu;
uint64_t fb_gpu;

// reading back shader code for debugging
struct radeon_bo* shader_read_bo;
uint64_t shader_read_gpu;
void* shader_read_cpu;

// needed because of weird stuff
int numFSuses;

// tracking moved BOs to move them back after CS execution
struct radeon_bo** moved_bos; // array of pointers to the BOs that were moved
int nMovedBos; // number of BOs moved (determines size of array)
struct mutex move_bos_mutex;
struct list_head move_bo_head;
bool trackMoves; // enables or disables tracking of the BO moves to avoid tracking while moving the BOs back after CS execution
};

bool radeon_is_px(struct drm_device *dev);
Expand Down
11 changes: 8 additions & 3 deletions drivers/gpu/drm/radeon/radeon_bios.c
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Expand Up @@ -72,7 +72,7 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev)
iounmap(bios);
return false;
}
memcpy_fromio(rdev->bios, bios, size);
memcpy_fromio_pcie(rdev->bios, bios, size);
iounmap(bios);
return true;
}
Expand All @@ -81,6 +81,7 @@ static bool radeon_read_bios(struct radeon_device *rdev)
{
uint8_t __iomem *bios, val1, val2;
size_t size;
int pos;

rdev->bios = NULL;
/* XXX: some cards may return 0 for rom size? ddx has a workaround */
Expand All @@ -101,7 +102,11 @@ static bool radeon_read_bios(struct radeon_device *rdev)
pci_unmap_rom(rdev->pdev, bios);
return false;
}
memcpy_fromio(rdev->bios, bios, size);
//memcpy_fromio(rdev->bios, bios, size);
for(pos = 0;pos < size; pos++){
//memcpy_fromio(rdev->bios+pos,bios+pos,1);
rdev->bios[pos] = __raw_readb(bios+pos);
}
pci_unmap_rom(rdev->pdev, bios);
return true;
}
Expand All @@ -125,7 +130,7 @@ static bool radeon_read_platform_bios(struct radeon_device *rdev)
if (!bios)
goto free_bios;

memcpy_fromio(rdev->bios, bios, romlen);
memcpy_fromio_pcie(rdev->bios, bios, romlen);
iounmap(bios);

if (rdev->bios[0] != 0x55 || rdev->bios[1] != 0xaa)
Expand Down
2 changes: 2 additions & 0 deletions drivers/gpu/drm/radeon/radeon_cs.c
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Expand Up @@ -663,6 +663,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
struct radeon_device *rdev = dev->dev_private;
struct radeon_cs_parser parser;
int r;
INIT_LIST_HEAD(&rdev->move_bo_head);

down_read(&rdev->exclusive_lock);
if (!rdev->accel_working) {
Expand All @@ -676,6 +677,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
r = -EAGAIN;
return r;
}
rdev->trackMoves = true;
/* initialize parser */
memset(&parser, 0, sizeof(struct radeon_cs_parser));
parser.filp = filp;
Expand Down
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