From c2637a17d95e645cc45eb648d03324502ab99748 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Nicolai=20H=C3=A4hnle?= Date: Tue, 7 Feb 2017 16:59:54 +0100 Subject: [PATCH] radeon/winsys: add sparse buffer interface MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Reviewed-by: Marek Olšák --- src/gallium/drivers/radeon/radeon_winsys.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/gallium/drivers/radeon/radeon_winsys.h b/src/gallium/drivers/radeon/radeon_winsys.h index a19ece6634d..a63485175d7 100644 --- a/src/gallium/drivers/radeon/radeon_winsys.h +++ b/src/gallium/drivers/radeon/radeon_winsys.h @@ -53,6 +53,7 @@ enum radeon_bo_flag { /* bitfield */ RADEON_FLAG_CPU_ACCESS = (1 << 1), RADEON_FLAG_NO_CPU_ACCESS = (1 << 2), RADEON_FLAG_HANDLE = (1 << 3), /* the buffer most not be suballocated */ + RADEON_FLAG_SPARSE = (1 << 4), }; enum radeon_bo_usage { /* bitfield */ @@ -66,6 +67,8 @@ enum radeon_bo_usage { /* bitfield */ RADEON_USAGE_SYNCHRONIZED = 8 }; +#define RADEON_SPARSE_PAGE_SIZE (64 * 1024) + enum ring_type { RING_GFX = 0, RING_COMPUTE, @@ -574,6 +577,20 @@ struct radeon_winsys { unsigned slice_size, struct winsys_handle *whandle); + /** + * Change the commitment of a (64KB-page aligned) region of the given + * sparse buffer. + * + * \warning There is no automatic synchronization with command submission. + * + * \note Only implemented by the amdgpu winsys. + * + * \return false on out of memory or other failure, true on success. + */ + bool (*buffer_commit)(struct pb_buffer *buf, + uint64_t offset, uint64_t size, + bool commit); + /** * Return the virtual address of a buffer. * -- 2.30.2