From: Alex Deucher <alexander.deucher@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Subject: [PATCH 3/5] drm/amdgpu/sdma5.2: adjust SDMA limits
Date: Mon, 15 Sep 2025 09:31:59 -0400 [thread overview]
Message-ID: <20250915133201.3547033-3-alexander.deucher@amd.com> (raw)
In-Reply-To: <20250915133201.3547033-1-alexander.deucher@amd.com>
SDMA 5.2.x has increased transfer limits.
v2: fix harder, use shifts to make it more obvious
v3: align const fill with PAL limits
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
index a8e39df29f343..d3b2ac5813383 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c
@@ -2065,11 +2065,11 @@ static void sdma_v5_2_emit_fill_buffer(struct amdgpu_ib *ib,
}
static const struct amdgpu_buffer_funcs sdma_v5_2_buffer_funcs = {
- .copy_max_bytes = 0x400000,
+ .copy_max_bytes = 1 << 30,
.copy_num_dw = 7,
.emit_copy_buffer = sdma_v5_2_emit_copy_buffer,
- .fill_max_bytes = 0x400000,
+ .fill_max_bytes = 1 << 22, /* HW supports 1 << 30, but align with PAL for consistency */
.fill_num_dw = 5,
.emit_fill_buffer = sdma_v5_2_emit_fill_buffer,
};
--
2.51.0
next prev parent reply other threads:[~2025-09-15 13:32 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-15 13:31 [PATCH 1/5] drm/amdgpu/sdma4.0: adjust SDMA limits Alex Deucher
2025-09-15 13:31 ` [PATCH 2/5] drm/amdgpu/sdma4.4: " Alex Deucher
2025-09-15 13:31 ` Alex Deucher [this message]
2025-09-15 13:32 ` [PATCH 4/5] drm/amdgpu/sdma6.0: " Alex Deucher
2025-09-15 13:32 ` [PATCH 5/5] drm/amdgpu/sdma7.0: " Alex Deucher
-- strict thread matches above, loose matches on Subject: below --
2025-09-11 17:24 [PATCH 1/5] drm/amdgpu/sdma4.0: " Alex Deucher
2025-09-11 17:24 ` [PATCH 3/5] drm/amdgpu/sdma5.2: " Alex Deucher
2025-09-11 18:18 ` Alex Deucher
2025-09-12 19:38 ` Alex Deucher
2025-09-13 5:27 ` timur.kristof
2025-09-15 13:07 ` Alex Deucher
2025-09-15 13:23 ` timur.kristof
2025-09-15 13:25 ` Alex Deucher
2025-09-15 13:26 ` timur.kristof
2025-09-11 14:46 [PATCH 1/5] drm/amdgpu/sdma4.0: " Alex Deucher
2025-09-11 14:46 ` [PATCH 3/5] drm/amdgpu/sdma5.2: " Alex Deucher
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