/* * Copyright 2008 Corbin Simpson * Copyright 2010 Marek Olšák * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * on the rights to use, copy, modify, merge, publish, distribute, sub * license, and/or sell copies of the Software, and to permit persons to whom * the Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef R300_WINSYS_H #define R300_WINSYS_H /* The public winsys interface header for the r300 pipe driver. * Any winsys hosting this pipe needs to implement r300_winsys_screen and then * call r300_screen_create to start things. */ #include "r300_defines.h" #include "pipebuffer/pb_bufmgr.h" #include "pipe/p_defines.h" #include "pipe/p_state.h" #define R300_MAX_CMDBUF_DWORDS (16 * 1024) #define R300_FLUSH_ASYNC (1 << 0) struct winsys_handle; struct r300_winsys_screen; #define r300_winsys_bo pb_buffer #define r300_winsys_bo_reference(pdst, src) pb_reference(pdst, src) struct r300_winsys_cs_handle; /* for write_reloc etc. */ struct r300_winsys_cs { unsigned cdw; /* Number of used dwords. */ uint32_t *buf; /* The command buffer. */ }; enum r300_value_id { R300_VID_PCI_ID, R300_VID_GB_PIPES, R300_VID_Z_PIPES, R300_VID_GART_SIZE, R300_VID_VRAM_SIZE, R300_VID_DRM_MAJOR, R300_VID_DRM_MINOR, R300_VID_DRM_PATCHLEVEL, /* These should probably go away: */ R300_VID_DRM_2_6_0, /* Hyper-Z, GB_Z_PEQ_CONFIG on rv350->r4xx, R500 FG_ALPHA_VALUE */ R300_VID_DRM_2_8_0, /* R500 US_FORMAT regs, R500 ARGB2101010 colorbuffer, CMask, R16F/RG16F */ R300_CAN_HYPERZ, /* ZMask + HiZ */ R300_CAN_AACOMPRESS, /* CMask */ }; struct r300_winsys_screen { /** * Destroy this winsys. * * \param ws The winsys this function is called from. */ void (*destroy)(struct r300_winsys_screen *ws); /** * Query a system value from a winsys. * * \param ws The winsys this function is called from. * \param vid One of the R300_VID_* enums. */ uint32_t (*get_value)(struct r300_winsys_screen *ws, enum r300_value_id vid); /************************************************************************** * Buffer management. Buffer attributes are mostly fixed over its lifetime. * * Remember that gallium gets to choose the interface it needs, and the * window systems must then implement that interface (rather than the * other way around...). *************************************************************************/ /** * Create a buffer object. * * \param ws The winsys this function is called from. * \param size The size to allocate. * \param alignment An alignment of the buffer in memory. * \param bind A bitmask of the PIPE_BIND_* flags. * \param usage A bitmask of the PIPE_USAGE_* flags. * \param domain A bitmask of the R300_DOMAIN_* flags. * \return The created buffer object. */ struct r300_winsys_bo *(*buffer_create)(struct r300_winsys_screen *ws, unsigned size, unsigned alignment, unsigned bind, unsigned usage, enum r300_buffer_domain domain); struct r300_winsys_cs_handle *(*buffer_get_cs_handle)( struct r300_winsys_bo *buf); /** * Map the entire data store of a buffer object into the client's address * space. * * \param buf A winsys buffer object to map. * \param cs A command stream to flush if the buffer is referenced by it. * \param usage A bitmask of the PIPE_TRANSFER_* flags. * \return The pointer at the beginning of the buffer. */ void *(*buffer_map)(struct r300_winsys_bo *buf, struct r300_winsys_cs *cs, enum pipe_transfer_usage usage); /** * Unmap a buffer object from the client's address space. * * \param buf A winsys buffer object to unmap. */ void (*buffer_unmap)(struct r300_winsys_bo *buf); /** * Return TRUE if a buffer object is being used by the GPU. * * \param buf A winsys buffer object. */ boolean (*buffer_is_busy)(struct r300_winsys_bo *buf); /** * Wait for a buffer object until it is not used by a GPU. This is * equivalent to a fence placed after the last command using the buffer, * and synchronizing to the fence. * * \param buf A winsys buffer object to wait for. */ void (*buffer_wait)(struct r300_winsys_bo *buf); /** * Return tiling flags describing a memory layout of a buffer object. * * \param buf A winsys buffer object to get the flags from. * \param macrotile A pointer to the return value of the microtile flag. * \param microtile A pointer to the return value of the macrotile flag. * * \note microtile and macrotile are not bitmasks! */ void (*buffer_get_tiling)(struct r300_winsys_bo *buf, enum r300_buffer_tiling *microtile, enum r300_buffer_tiling *macrotile); /** * Set tiling flags describing a memory layout of a buffer object. * * \param buf A winsys buffer object to set the flags for. * \param cs A command stream to flush if the buffer is referenced by it. * \param macrotile A macrotile flag. * \param microtile A microtile flag. * \param stride A stride of the buffer in bytes, for texturing. * * \note microtile and macrotile are not bitmasks! */ void (*buffer_set_tiling)(struct r300_winsys_bo *buf, struct r300_winsys_cs *cs, enum r300_buffer_tiling microtile, enum r300_buffer_tiling macrotile, unsigned stride); /** * Get a winsys buffer from a winsys handle. The internal structure * of the handle is platform-specific and only a winsys should access it. * * \param ws The winsys this function is called from. * \param whandle A winsys handle pointer as was received from a state * tracker. * \param stride The returned buffer stride in bytes. * \param size The returned buffer size. */ struct r300_winsys_bo *(*buffer_from_handle)(struct r300_winsys_screen *ws, struct winsys_handle *whandle, unsigned *stride, unsigned *size); /** * Get a winsys handle from a winsys buffer. The internal structure * of the handle is platform-specific and only a winsys should access it. * * \param buf A winsys buffer object to get the handle from. * \param whandle A winsys handle pointer. * \param stride A stride of the buffer in bytes, for texturing. * \return TRUE on success. */ boolean (*buffer_get_handle)(struct r300_winsys_bo *buf, unsigned stride, struct winsys_handle *whandle); /************************************************************************** * Command submission. * * Each pipe context should create its own command stream and submit * commands independently of other contexts. *************************************************************************/ /** * Create a command stream. * * \param ws The winsys this function is called from. */ struct r300_winsys_cs *(*cs_create)(struct r300_winsys_screen *ws); /** * Destroy a command stream. * * \param cs A command stream to destroy. */ void (*cs_destroy)(struct r300_winsys_cs *cs); /** * Add a new buffer relocation. Every relocation must first be added * before it can be written. * * \param cs A command stream to add buffer for validation against. * \param buf A winsys buffer to validate. * \param rd A read domain containing a bitmask of the R300_DOMAIN_* flags. * \param wd A write domain containing a bitmask of the R300_DOMAIN_* flags. */ void (*cs_add_reloc)(struct r300_winsys_cs *cs, struct r300_winsys_cs_handle *buf, enum r300_buffer_domain rd, enum r300_buffer_domain wd); /** * Return TRUE if there is enough memory in VRAM and GTT for the relocs * added so far. * * \param cs A command stream to validate. */ boolean (*cs_validate)(struct r300_winsys_cs *cs); /** * Write a relocated dword to a command buffer. * * \param cs A command stream the relocation is written to. * \param buf A winsys buffer to write the relocation for. * \param rd A read domain containing a bitmask of the R300_DOMAIN_* flags. * \param wd A write domain containing a bitmask of the R300_DOMAIN_* flags. */ void (*cs_write_reloc)(struct r300_winsys_cs *cs, struct r300_winsys_cs_handle *buf); /** * Flush a command stream. * * \param cs A command stream to flush. * \param flags, R300_FLUSH_ASYNC or 0. */ void (*cs_flush)(struct r300_winsys_cs *cs, unsigned flags); /** * Set a flush callback which is called from winsys when flush is * required. * * \param cs A command stream to set the callback for. * \param flush A flush callback function associated with the command stream. * \param user A user pointer that will be passed to the flush callback. */ void (*cs_set_flush)(struct r300_winsys_cs *cs, void (*flush)(void *ctx, unsigned flags), void *user); /** * Return TRUE if a buffer is referenced by a command stream. * * \param cs A command stream. * \param buf A winsys buffer. */ boolean (*cs_is_buffer_referenced)(struct r300_winsys_cs *cs, struct r300_winsys_cs_handle *buf); }; #endif /* R300_WINSYS_H */