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Commit 62f659e0 authored by Sukadev Bhattiprolu's avatar Sukadev Bhattiprolu Committed by Michael Ellerman
Browse files

powerpc/vas: Save configured window credits 



Save the configured max window credits for a window in the vas_window
structure. We will need this when polling for return of window credits.

Signed-off-by: default avatarSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent dfe954e4

arch/powerpc/platforms/powernv/vas-window.c

+4 −2
Original line number Diff line number Diff line
@@ -674,7 +674,7 @@ static void init_winctx_for_rxwin(struct vas_window *rxwin, 


	winctx->rx_fifo = rxattr->rx_fifo;

	winctx->rx_fifo_size = rxattr->rx_fifo_size;

	winctx->wcreds_max = rxattr->wcreds_max ?: VAS_WCREDS_DEFAULT;

	winctx->wcreds_max = rxwin->wcreds_max;

	winctx->pin_win = rxattr->pin_win;



	winctx->nx_win = rxattr->nx_win;
@@ -844,6 +844,7 @@ struct vas_window *vas_rx_win_open(int vasid, enum vas_cop_type cop, 
	rxwin->nx_win = rxattr->nx_win;

	rxwin->user_win = rxattr->user_win;

	rxwin->cop = cop;

	rxwin->wcreds_max = rxattr->wcreds_max ?: VAS_WCREDS_DEFAULT;

	if (rxattr->user_win)

		rxwin->pid = task_pid_vnr(current);
@@ -893,7 +894,7 @@ static void init_winctx_for_txwin(struct vas_window *txwin, 
	 */

	memset(winctx, 0, sizeof(struct vas_winctx));



	winctx->wcreds_max = txattr->wcreds_max ?: VAS_WCREDS_DEFAULT;

	winctx->wcreds_max = txwin->wcreds_max;



	winctx->user_win = txattr->user_win;

	winctx->nx_win = txwin->rxwin->nx_win;
@@ -978,6 +979,7 @@ struct vas_window *vas_tx_win_open(int vasid, enum vas_cop_type cop, 
	txwin->nx_win = txwin->rxwin->nx_win;

	txwin->pid = attr->pid;

	txwin->user_win = attr->user_win;

	txwin->wcreds_max = attr->wcreds_max ?: VAS_WCREDS_DEFAULT;



	init_winctx_for_txwin(txwin, attr, &winctx);

arch/powerpc/platforms/powernv/vas.h

+1 −0
Original line number Diff line number Diff line
@@ -332,6 +332,7 @@ struct vas_window { 
	void *hvwc_map;		/* HV window context */

	void *uwc_map;		/* OS/User window context */

	pid_t pid;		/* Linux process id of owner */

	int wcreds_max;		/* Window credits */



	/* Fields applicable only to send windows */

	void *paste_kaddr;